[squid-users] squid cpu usage

Vieri rentorbuy at yahoo.com
Thu Oct 26 11:15:14 UTC 2017


Well, I've just had another issue with my CPU usage gone bonkers.

Here's the strace (compressed with gz):

https://drive.google.com/file/d/0B-tpkY1LkI67WFBaNnVpR2lteEE/view?usp=sharing

There are a lot of "Resource temporarily unavailable" messages.
However, I'm seeing these messages even when my Squid process has been restarted, and everything seems to be OK from a "user experience" point of view.
Do you see anything useful in the trace?
If not, how can I improve the trace next time I have this issue?

Here's what squidclient has to say during the "storm":

HTTP/1.1 200 OK
Server: squid
Mime-Version: 1.0
Date: Thu, 26 Oct 2017 08:34:43 GMT
Content-Type: text/plain;charset=utf-8
Expires: Thu, 26 Oct 2017 08:34:43 GMT
Last-Modified: Thu, 26 Oct 2017 08:34:43 GMT
X-Cache: MISS from inf-fw2
X-Cache-Lookup: MISS from inf-fw2:3128
Connection: close

Squid Object Cache: Version 3.5.27-20170916-re69e56c
Build Info: 
Service Name: squid
Start Time:	Thu, 26 Oct 2017 02:09:30 GMT
Current Time:	Thu, 26 Oct 2017 08:34:43 GMT
Connection information for squid:
Number of clients accessing cache:	471
Number of HTTP requests received:	267968
Number of ICP messages received:	0
Number of ICP messages sent:	0
Number of queued ICP replies:	0
Number of HTCP messages received:	0
Number of HTCP messages sent:	0
Request failure ratio:	 0.00
Average HTTP requests per minute since start:	695.6
Average ICP messages per minute since start:	0.0
Select loop called: 10630162 times, 2.174 ms avg
Cache information for squid:
Hits as % of all requests:	5min: 2.3%, 60min: 2.5%
Hits as % of bytes sent:	5min: 10.6%, 60min: -4.4%
Memory hits as % of hit requests:	5min: 22.1%, 60min: 36.5%
Disk hits as % of hit requests:	5min: 4.3%, 60min: 0.3%
Storage Swap size:	29484 KB
Storage Swap capacity:	90.0% used, 10.0% free
Storage Mem size:	28492 KB
Storage Mem capacity:	87.0% used, 13.0% free
Mean Object Size:	22.29 KB
Requests given to unlinkd:	17424
Median Service Times (seconds)  5 min    60 min:
HTTP Requests (All):   2.64709  0.27332
Cache Misses:          1.54242  0.27332
Cache Hits:            0.64968  0.00000
Near Hits:             1.31166  0.22004
Not-Modified Replies:  0.44492  0.00000
DNS Lookups:           0.12472  0.07968
ICP Queries:           0.00000  0.00000
Resource usage for squid:
UP Time:	23113.055 seconds
CPU Time:	1599.750 seconds
CPU Usage:	6.92%
CPU Usage, 5 minute avg:	99.80%
CPU Usage, 60 minute avg:	32.48%
Maximum Resident Size: 987392 KB
Page faults with physical i/o: 0
Memory accounted for:
Total accounted:       148456 KB
memPoolAlloc calls:  87698086
memPoolFree calls:   89179152
File descriptor usage for squid:
Maximum number of file descriptors:   1024
Largest file desc currently in use:    913
Number of file desc currently in use:  791
Files queued for open:                   0
Available number of file descriptors:  233
Reserved number of file descriptors:   100
Store Disk files open:                   0
Internal Data Structures:
1642 StoreEntries
1640 StoreEntries with MemObjects
1375 Hot Object Cache Items
1323 on-disk objects

A little later (still during the "storm"):

HTTP/1.1 200 OK
Server: squid
Mime-Version: 1.0
Date: Thu, 26 Oct 2017 08:40:13 GMT
Content-Type: text/plain;charset=utf-8
Expires: Thu, 26 Oct 2017 08:40:13 GMT
Last-Modified: Thu, 26 Oct 2017 08:40:13 GMT
X-Cache: MISS from inf-fw2
X-Cache-Lookup: MISS from inf-fw2:3128
Connection: close

Squid Object Cache: Version 3.5.27-20170916-re69e56c
Build Info: 
Service Name: squid
Start Time:	Thu, 26 Oct 2017 02:09:30 GMT
Current Time:	Thu, 26 Oct 2017 08:40:13 GMT
Connection information for squid:
Number of clients accessing cache:	472
Number of HTTP requests received:	274183
Number of ICP messages received:	0
Number of ICP messages sent:	0
Number of queued ICP replies:	0
Number of HTCP messages received:	0
Number of HTCP messages sent:	0
Request failure ratio:	 0.00
Average HTTP requests per minute since start:	701.8
Average ICP messages per minute since start:	0.0
Select loop called: 10679512 times, 2.195 ms avg
Cache information for squid:
Hits as % of all requests:	5min: 0.2%, 60min: 2.3%
Hits as % of bytes sent:	5min: -3.2%, 60min: -3.6%
Memory hits as % of hit requests:	5min: 9.1%, 60min: 35.2%
Disk hits as % of hit requests:	5min: 0.0%, 60min: 0.4%
Storage Swap size:	29484 KB
Storage Swap capacity:	90.0% used, 10.0% free
Storage Mem size:	27304 KB
Storage Mem capacity:	83.3% used, 16.7% free
Mean Object Size:	16.25 KB
Requests given to unlinkd:	17424
Median Service Times (seconds)  5 min    60 min:
HTTP Requests (All):   1.05672  0.30459
Cache Misses:          0.94847  0.30459
Cache Hits:            0.00000  0.00000
Near Hits:             0.58309  0.23230
Not-Modified Replies:  0.00000  0.00000
DNS Lookups:           0.11405  0.08334
ICP Queries:           0.00000  0.00000
Resource usage for squid:
UP Time:	23442.516 seconds
CPU Time:	1888.520 seconds
CPU Usage:	8.06%
CPU Usage, 5 minute avg:	86.51%
CPU Usage, 60 minute avg:	39.31%
Maximum Resident Size: 988768 KB
Page faults with physical i/o: 0
Memory accounted for:
Total accounted:       151913 KB
memPoolAlloc calls:  89548742
memPoolFree calls:   91062557
File descriptor usage for squid:
Maximum number of file descriptors:   1024
Largest file desc currently in use:    913
Number of file desc currently in use:  814
Files queued for open:                   0
Available number of file descriptors:  210
Reserved number of file descriptors:   100
Store Disk files open:                   0
Internal Data Structures:
2139 StoreEntries
2135 StoreEntries with MemObjects
1863 Hot Object Cache Items
1814 on-disk objects

Memory info:

TTP/1.1 200 OK
Server: squid
Mime-Version: 1.0
Date: Thu, 26 Oct 2017 08:34:51 GMT
Content-Type: text/plain;charset=utf-8
Expires: Thu, 26 Oct 2017 08:34:51 GMT
Last-Modified: Thu, 26 Oct 2017 08:34:51 GMT
X-Cache: MISS from inf-fw2
X-Cache-Lookup: MISS from inf-fw2:3128
Connection: close

Current memory usage:
Pool	 Obj Size	Chunks							Allocated					In Use					Idle			Allocations Saved			Rate 
(bytes)	KB/ch	 obj/ch	(#)	 used	 free	 part	 %Frag	 (#)	 (KB)	 high (KB)	 high (hrs)	 %Tot	(#)	 (KB)	 high (KB)	 high (hrs)	 %alloc	(#)	 (KB)	 high (KB)	(#)	 %cnt	 %vol	(#)/sec 
64K Buffer          	 65536	 	 	 	 	 	 	 	 1366	 87424	 88064	 0.03	 58.871	 1340	 85760	 88064	 0.03	 98.097	 26	 1664	 5248	 283321	 0.317	 35.761	 21.750
mem_node            	 4136	 	 	 	 	 	 	 	 7326	 29591	 30843	 1.38	 19.926	 7096	 28662	 30843	 1.38	 96.860	 230	 929	 6802	 558119	 0.624	 4.446	 48.467
32K Buffer          	 32768	 	 	 	 	 	 	 	 129	 4128	 5984	 0.77	 2.780	 123	 3936	 5984	 0.77	 95.349	 6	 192	 2272	 49708	 0.056	 3.137	 4.285
ExternalACLEntry    	  256	 	 	 	 	 	 	 	 16447	 4112	 4953	 4.32	 2.769	 16447	 4112	 4953	 4.32	 100.000	 0	 0	 4953	 591	 0.001	 0.000	 5.834
16K Buffer          	 16384	 	 	 	 	 	 	 	 189	 3024	 6992	 4.35	 2.036	 167	 2672	 6992	 4.35	 88.360	 22	 352	 3152	 223171	 0.250	 7.042	 16.461
8K Buffer           	 8192	 	 	 	 	 	 	 	 368	 2944	 3464	 0.17	 1.982	 347	 2776	 3464	 0.17	 94.293	 21	 168	 1112	 288150	 0.322	 4.546	 27.526
Short Strings       	   40	 	 	 	 	 	 	 	 73543	 2873	 3066	 0.57	 1.935	 73511	 2872	 3066	 0.57	 99.956	 32	 2	 867	 50208368	 56.164	 3.868	 3944.297
4K Buffer           	 4096	 	 	 	 	 	 	 	 497	 1988	 2696	 1.51	 1.339	 466	 1864	 2696	 1.51	 93.763	 31	 124	 1012	 397819	 0.445	 3.138	 37.339
HttpHeaderEntry     	   56	 	 	 	 	 	 	 	 30961	 1694	 1862	 0.57	 1.140	 30959	 1694	 1862	 0.57	 99.994	 2	 1	 590	 12908222	 14.439	 1.392	 1001.067
HttpRequest         	 1784	 	 	 	 	 	 	 	 891	 1553	 1631	 0.02	 1.045	 885	 1542	 1631	 0.02	 99.327	 6	 11	 295	 613472	 0.686	 2.108	 52.175
Medium Strings      	  128	 	 	 	 	 	 	 	 6801	 851	 954	 4.33	 0.572	 6644	 831	 954	 4.33	 97.692	 157	 20	 360	 2746616	 3.072	 0.677	 219.037
4KB Strings         	 4096	 	 	 	 	 	 	 	 208	 832	 1168	 1.42	 0.560	 143	 572	 1168	 1.42	 68.750	 65	 260	 444	 262956	 0.294	 2.074	 23.268
HttpReply           	  280	 	 	 	 	 	 	 	 2884	 789	 861	 0.57	 0.531	 2865	 784	 861	 0.57	 99.341	 19	 6	 291	 1030249	 1.152	 0.556	 82.441
2K Buffer           	 2048	 	 	 	 	 	 	 	 374	 748	 1416	 4.32	 0.504	 346	 692	 1416	 4.32	 92.513	 28	 56	 768	 4412257	 4.936	 17.404	 317.415
16KB Strings        	 16384	 	 	 	 	 	 	 	 44	 704	 4400	 1.71	 0.474	 40	 640	 4400	 1.71	 90.909	 4	 64	 2368	 76985	 0.086	 2.429	 7.763
cbdata clientReplyContext (25)	 4352	 	 	 	 	 	 	 	 140	 595	 706	 0.08	 0.401	 122	 519	 706	 0.08	 87.143	 18	 77	 489	 264790	 0.296	 2.219	 23.215
cbdata ClientSocketContext (24)	 4256	 	 	 	 	 	 	 	 140	 582	 690	 0.08	 0.392	 122	 508	 690	 0.08	 87.143	 18	 75	 478	 264789	 0.296	 2.170	 23.215
MemObject           	  328	 	 	 	 	 	 	 	 1682	 539	 794	 4.33	 0.363	 1663	 533	 794	 4.33	 98.870	 19	 7	 339	 255955	 0.286	 0.162	 23.520
Long Strings        	  512	 	 	 	 	 	 	 	 958	 479	 811	 4.35	 0.323	 950	 475	 811	 4.35	 99.165	 8	 4	 369	 677454	 0.758	 0.668	 56.843
Comm::Connection    	  200	 	 	 	 	 	 	 	 1533	 300	 307	 0.28	 0.202	 1495	 292	 307	 0.28	 97.521	 38	 8	 70	 606480	 0.678	 0.234	 65.623
cbdata Server (20)  	  520	 	 	 	 	 	 	 	 549	 279	 304	 0.44	 0.188	 528	 269	 304	 0.44	 96.175	 21	 11	 114	 108934	 0.122	 0.109	 12.423
cbdata BodyPipe (38)	  152	 	 	 	 	 	 	 	 1659	 247	 293	 0.56	 0.166	 1640	 244	 293	 0.56	 98.855	 19	 3	 109	 215397	 0.241	 0.063	 15.348
ClientInfo          	  448	 	 	 	 	 	 	 	 471	 207	 207	 0.09	 0.139	 471	 207	 207	 0.09	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.007
1KB Strings         	 1024	 	 	 	 	 	 	 	 189	 189	 208	 0.29	 0.127	 156	 156	 208	 0.29	 82.540	 33	 33	 107	 134127	 0.150	 0.265	 13.835
cbdata MemBuf (12)  	   64	 	 	 	 	 	 	 	 2999	 188	 201	 0.57	 0.126	 2963	 186	 201	 0.57	 98.800	 36	 3	 67	 1535006	 1.717	 0.189	 123.213
StoreEntry          	  104	 	 	 	 	 	 	 	 1683	 171	 1670	 6.42	 0.115	 1665	 170	 1670	 6.42	 98.930	 18	 2	 1478	 256816	 0.287	 0.051	 23.520
cbdata ModXact (41) 	  512	 	 	 	 	 	 	 	 319	 160	 162	 0.12	 0.107	 308	 154	 162	 0.12	 96.552	 11	 6	 16	 131784	 0.147	 0.130	 10.001
netdbEntry          	  168	 	 	 	 	 	 	 	 970	 160	 165	 1.91	 0.107	 970	 160	 165	 1.91	 100.000	 0	 0	 17	 261	 0.000	 0.000	 0.180
fqdncache_entry     	  160	 	 	 	 	 	 	 	 934	 146	 152	 2.16	 0.098	 926	 145	 152	 2.16	 99.143	 8	 2	 8	 30025	 0.034	 0.009	 2.861
ipcache_entry       	  128	 	 	 	 	 	 	 	 927	 116	 119	 2.19	 0.078	 921	 116	 119	 2.19	 99.353	 6	 1	 5	 16480	 0.018	 0.004	 1.682
MemBlob             	   48	 	 	 	 	 	 	 	 2355	 111	 145	 1.30	 0.074	 2226	 105	 145	 1.30	 94.522	 129	 7	 33	 3054760	 3.417	 0.282	 267.710
HttpHdrCc           	   96	 	 	 	 	 	 	 	 1112	 105	 159	 4.35	 0.070	 1067	 101	 159	 4.35	 95.953	 45	 5	 70	 485419	 0.543	 0.090	 37.649
cbdata idns_query (9)	 8696	 	 	 	 	 	 	 	 12	 102	 391	 2.28	 0.069	 2	 17	 391	 2.28	 16.667	 10	 85	 391	 62918	 0.070	 1.054	 5.848
net_db_name         	   32	 	 	 	 	 	 	 	 2228	 70	 72	 0.16	 0.047	 2228	 70	 72	 0.16	 100.000	 0	 0	 6	 493	 0.001	 0.000	 0.275
cbdata ClientHttpRequest (23)	  392	 	 	 	 	 	 	 	 174	 67	 77	 0.01	 0.045	 152	 59	 77	 0.01	 87.356	 22	 9	 46	 264283	 0.296	 0.200	 23.215
LRU policy node     	   24	 	 	 	 	 	 	 	 2692	 64	 384	 6.42	 0.042	 2666	 63	 384	 6.42	 99.034	 26	 1	 341	 32395	 0.036	 0.001	 4.782
cbdata IdleConnList (18)	 4160	 	 	 	 	 	 	 	 15	 61	 252	 1.97	 0.041	 14	 57	 252	 1.97	 93.333	 1	 5	 200	 13686	 0.015	 0.110	 0.972
cbdata store_client (31)	  160	 	 	 	 	 	 	 	 288	 45	 56	 1.52	 0.030	 278	 44	 56	 1.52	 96.528	 10	 2	 27	 275536	 0.308	 0.085	 24.485
NotePairs::Entry    	   48	 	 	 	 	 	 	 	 927	 44	 46	 2.92	 0.029	 924	 44	 46	 2.92	 99.676	 3	 1	 46	 18571	 0.021	 0.002	 1.796
cbdata clientStreamNode (26)	  128	 	 	 	 	 	 	 	 280	 35	 42	 0.08	 0.024	 244	 31	 42	 0.08	 87.143	 36	 5	 29	 529580	 0.592	 0.131	 46.431
cbdata ServerBump (30)	  104	 	 	 	 	 	 	 	 259	 27	 34	 1.52	 0.018	 240	 25	 34	 1.52	 92.664	 19	 2	 17	 81041	 0.091	 0.016	 9.000
MD5 digest          	   16	 	 	 	 	 	 	 	 1683	 27	 257	 6.42	 0.018	 1665	 27	 257	 6.42	 98.930	 18	 1	 228	 287894	 0.322	 0.009	 26.086
MimeEntry           	  128	 	 	 	 	 	 	 	 177	 23	 23	 6.42	 0.015	 177	 23	 23	 6.42	 100.000	 0	 0	 23	 1062	 0.001	 0.000	 0.063
cbdata HttpStateData (36)	  320	 	 	 	 	 	 	 	 58	 19	 19	 0.07	 0.012	 37	 12	 19	 0.07	 63.793	 21	 7	 15	 133511	 0.149	 0.082	 10.258
cbdata FwdState (32)	  176	 	 	 	 	 	 	 	 101	 18	 18	 0.28	 0.012	 59	 11	 18	 0.28	 58.416	 42	 8	 13	 211946	 0.237	 0.072	 18.843
cbdata helper_server (11)	  240	 	 	 	 	 	 	 	 55	 13	 13	 0.09	 0.009	 55	 13	 13	 0.09	 100.000	 0	 0	 9	 209	 0.000	 0.000	 0.019
cbdata ConnOpener (34)	  136	 	 	 	 	 	 	 	 64	 9	 9	 0.01	 0.006	 4	 1	 9	 0.01	 6.250	 60	 8	 9	 98344	 0.110	 0.026	 10.905
cbdata PeerConnector (35)	  136	 	 	 	 	 	 	 	 61	 9	 9	 0.01	 0.005	 18	 3	 9	 0.01	 29.508	 43	 6	 9	 77220	 0.086	 0.020	 8.531
Acl::AndNode        	  160	 	 	 	 	 	 	 	 44	 7	 7	 6.42	 0.005	 44	 7	 7	 6.42	 100.000	 0	 0	 7	 264	 0.000	 0.000	 0.016
cbdata Iterator (39)	  168	 	 	 	 	 	 	 	 31	 6	 8	 0.77	 0.003	 23	 4	 8	 0.77	 74.194	 8	 2	 6	 131859	 0.148	 0.043	 9.978
cbdata ACLFilledChecklist (22)	  464	 	 	 	 	 	 	 	 11	 5	 11	 2.28	 0.003	 10	 5	 11	 2.28	 90.909	 1	 1	 11	 756320	 0.846	 0.676	 66.886
cbdata ModXactLauncher (40)	  160	 	 	 	 	 	 	 	 30	 5	 8	 0.77	 0.003	 20	 4	 8	 0.77	 66.667	 10	 2	 5	 131871	 0.148	 0.041	 9.978
ACLStrategised      	  160	 	 	 	 	 	 	 	 19	 3	 3	 6.42	 0.002	 19	 3	 3	 6.42	 100.000	 0	 0	 3	 114	 0.000	 0.000	 0.007
cbdata ServiceRep (17)	  344	 	 	 	 	 	 	 	 7	 3	 3	 0.78	 0.002	 7	 3	 3	 0.78	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
cbdata Tree (4)     	  216	 	 	 	 	 	 	 	 11	 3	 3	 6.42	 0.002	 11	 3	 3	 6.42	 100.000	 0	 0	 3	 66	 0.000	 0.000	 0.004
cbdata AccessCheck (29)	  152	 	 	 	 	 	 	 	 15	 3	 4	 0.57	 0.001	 0	 0	 4	 0.57	 0.000	 15	 3	 4	 352429	 0.394	 0.103	 29.244
Acl::NotNode        	  160	 	 	 	 	 	 	 	 14	 3	 3	 6.42	 0.001	 14	 3	 3	 6.42	 100.000	 0	 0	 3	 84	 0.000	 0.000	 0.005
acl_ip_data         	   96	 	 	 	 	 	 	 	 19	 2	 2	 6.42	 0.001	 19	 2	 2	 6.42	 100.000	 0	 0	 2	 289	 0.000	 0.000	 0.016
cbdata ClientRequestContext (27)	  104	 	 	 	 	 	 	 	 17	 2	 4	 0.08	 0.001	 11	 2	 4	 0.08	 64.706	 6	 1	 4	 262994	 0.294	 0.053	 22.940
cbdata WriteRequest (47)	   80	 	 	 	 	 	 	 	 20	 2	 6	 4.28	 0.001	 0	 0	 6	 4.28	 0.000	 20	 2	 6	 190311	 0.213	 0.029	 15.692
cbdata UFSStoreState (45)	  176	 	 	 	 	 	 	 	 8	 2	 3	 0.26	 0.001	 0	 0	 3	 0.26	 0.000	 8	 2	 3	 28910	 0.032	 0.010	 2.397
Helper::Request     	   48	 	 	 	 	 	 	 	 28	 2	 2	 0.08	 0.001	 16	 1	 2	 0.08	 57.143	 12	 1	 2	 158681	 0.178	 0.015	 14.377
HttpHdrContRange    	   24	 	 	 	 	 	 	 	 48	 2	 2	 0.18	 0.001	 48	 2	 2	 0.18	 100.000	 0	 0	 1	 410	 0.000	 0.000	 0.036
RegexList           	   88	 	 	 	 	 	 	 	 10	 1	 1	 6.42	 0.001	 10	 1	 1	 6.42	 100.000	 0	 0	 1	 60	 0.000	 0.000	 0.004
cbdata externalAclState (14)	   88	 	 	 	 	 	 	 	 10	 1	 2	 0.28	 0.001	 10	 1	 2	 0.28	 100.000	 0	 0	 2	 81199	 0.091	 0.014	 6.014
ACLSourceIP         	  144	 	 	 	 	 	 	 	 6	 1	 1	 6.42	 0.001	 6	 1	 1	 6.42	 100.000	 0	 0	 1	 36	 0.000	 0.000	 0.002
cbdata DiskdFile (46)	  104	 	 	 	 	 	 	 	 8	 1	 2	 0.26	 0.001	 0	 0	 2	 0.26	 0.000	 8	 1	 2	 28910	 0.032	 0.006	 2.397
ev_entry            	   48	 	 	 	 	 	 	 	 17	 1	 2	 0.24	 0.001	 14	 1	 2	 0.24	 82.353	 3	 1	 1	 63038	 0.071	 0.006	 3.019
ACLStrategised      	  160	 	 	 	 	 	 	 	 5	 1	 1	 6.42	 0.001	 5	 1	 1	 6.42	 100.000	 0	 0	 1	 30	 0.000	 0.000	 0.002
cbdata helper (10)  	  168	 	 	 	 	 	 	 	 3	 1	 1	 0.78	 0.000	 3	 1	 1	 0.78	 100.000	 0	 0	 1	 17	 0.000	 0.000	 0.001
wordlist            	   16	 	 	 	 	 	 	 	 31	 1	 2	 0.78	 0.000	 31	 1	 2	 0.78	 100.000	 0	 0	 1	 837	 0.001	 0.000	 0.064
cbdata CbDataList (2)	   40	 	 	 	 	 	 	 	 12	 1	 1	 6.42	 0.000	 12	 1	 1	 6.42	 100.000	 0	 0	 1	 72	 0.000	 0.000	 0.004
cbdata ErrorState (37)	  240	 	 	 	 	 	 	 	 2	 1	 3	 0.05	 0.000	 0	 0	 3	 0.05	 0.000	 2	 1	 3	 53117	 0.059	 0.025	 4.356
ACLExternal         	  152	 	 	 	 	 	 	 	 3	 1	 1	 6.42	 0.000	 3	 1	 1	 6.42	 100.000	 0	 0	 1	 18	 0.000	 0.000	 0.001
ACLStringData       	   56	 	 	 	 	 	 	 	 8	 1	 1	 6.42	 0.000	 8	 1	 1	 6.42	 100.000	 0	 0	 1	 18	 0.000	 0.000	 0.001
ACLRegexData        	   16	 	 	 	 	 	 	 	 25	 1	 1	 6.42	 0.000	 25	 1	 1	 6.42	 100.000	 0	 0	 1	 54	 0.000	 0.000	 0.003
cbdata CbDataList (1)	   40	 	 	 	 	 	 	 	 10	 1	 1	 6.42	 0.000	 10	 1	 1	 6.42	 100.000	 0	 0	 1	 60	 0.000	 0.000	 0.004
cbdata external_acl (5)	  192	 	 	 	 	 	 	 	 2	 1	 1	 6.42	 0.000	 2	 1	 1	 6.42	 100.000	 0	 0	 1	 12	 0.000	 0.000	 0.001
cbdata generic_cbdata (21)	   32	 	 	 	 	 	 	 	 12	 1	 2	 2.28	 0.000	 1	 1	 2	 2.28	 8.333	 11	 1	 2	 86571	 0.097	 0.005	 7.694
ACLCertificateData  	  120	 	 	 	 	 	 	 	 3	 1	 1	 6.42	 0.000	 3	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
acl_name_list       	   72	 	 	 	 	 	 	 	 5	 1	 1	 6.42	 0.000	 5	 1	 1	 6.42	 100.000	 0	 0	 1	 30	 0.000	 0.000	 0.002
cbdata Logfile (15) 	  352	 	 	 	 	 	 	 	 1	 1	 1	 5.76	 0.000	 1	 1	 1	 5.76	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.001
ACLStrategised      	  160	 	 	 	 	 	 	 	 2	 1	 1	 6.42	 0.000	 2	 1	 1	 6.42	 100.000	 0	 0	 1	 12	 0.000	 0.000	 0.001
cbdata TcpAcceptor (19)	  104	 	 	 	 	 	 	 	 3	 1	 1	 6.42	 0.000	 3	 1	 1	 6.42	 100.000	 0	 0	 1	 18	 0.000	 0.000	 0.001
ACLDestinationIP    	  144	 	 	 	 	 	 	 	 2	 1	 1	 6.42	 0.000	 2	 1	 1	 6.42	 100.000	 0	 0	 1	 12	 0.000	 0.000	 0.001
ACLUserData         	   64	 	 	 	 	 	 	 	 4	 1	 1	 6.42	 0.000	 4	 1	 1	 6.42	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
cbdata ps_state (33)	  256	 	 	 	 	 	 	 	 1	 1	 1	 0.05	 0.000	 0	 0	 1	 0.05	 0.000	 1	 1	 1	 215092	 0.241	 0.106	 18.843
cbdata RemovalPolicy (7)	  104	 	 	 	 	 	 	 	 2	 1	 1	 6.42	 0.000	 2	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
cbdata statefulhelper (13)	  192	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
AclDenyInfoList     	   32	 	 	 	 	 	 	 	 5	 1	 1	 6.42	 0.000	 5	 1	 1	 6.42	 100.000	 0	 0	 1	 30	 0.000	 0.000	 0.002
ACLStrategised      	  160	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
ACLProxyAuth        	  152	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
ACLDomainData       	   16	 	 	 	 	 	 	 	 9	 1	 1	 6.42	 0.000	 9	 1	 1	 6.42	 100.000	 0	 0	 1	 42	 0.000	 0.000	 0.002
cbdata external_acl_data (6)	   48	 	 	 	 	 	 	 	 3	 1	 1	 6.42	 0.000	 3	 1	 1	 6.42	 100.000	 0	 0	 1	 18	 0.000	 0.000	 0.001
external_acl_format 	   64	 	 	 	 	 	 	 	 2	 1	 1	 6.42	 0.000	 2	 1	 1	 6.42	 100.000	 0	 0	 1	 12	 0.000	 0.000	 0.001
cbdata StoreSearchHashIndex (28)	  104	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
ACLHTTPHeaderData   	   48	 	 	 	 	 	 	 	 2	 1	 1	 6.42	 0.000	 2	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLSslErrorData     	   16	 	 	 	 	 	 	 	 6	 1	 1	 6.42	 0.000	 6	 1	 1	 6.42	 100.000	 0	 0	 1	 30	 0.000	 0.000	 0.002
cbdata nsvc (8)     	   72	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 75	 0.000	 0.000	 0.009
StoreSwapLogData    	   72	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 89577	 0.100	 0.012	 4.858
cbdata RemovalPurgeWalker (44)	   72	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 1961	 0.002	 0.000	 0.211
cbdata ReadRequest (48)	   72	 	 	 	 	 	 	 	 1	 1	 1	 6.30	 0.000	 0	 0	 1	 6.30	 0.000	 1	 1	 1	 111	 0.000	 0.000	 0.006
cbdata CbDataList (3)	   64	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
dwrite_q            	   48	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 89578	 0.100	 0.008	 4.858
FwdServer           	   24	 	 	 	 	 	 	 	 2	 1	 1	 0.05	 0.000	 0	 0	 1	 0.05	 0.000	 2	 1	 1	 318128	 0.356	 0.015	 25.710
ACLNoteData         	   40	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
CacheDigest         	   40	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLHierCodeData     	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLMethodData       	   16	 	 	 	 	 	 	 	 2	 1	 1	 6.42	 0.000	 2	 1	 1	 6.42	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
ACLTimeData         	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLAtStepData       	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLASN              	   16	 	 	 	 	 	 	 	 2	 1	 1	 6.42	 0.000	 2	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
StoreMetaMD5        	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 29043	 0.032	 0.002	 2.398
StoreMetaSTDLFS     	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 29043	 0.032	 0.002	 2.398
StoreMetaURL        	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 29043	 0.032	 0.002	 2.398
StoreMetaObjSize    	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 29043	 0.032	 0.002	 2.398
UFSStoreState::_queued_write	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 193581	 0.217	 0.012	 15.692
StoreMetaVary       	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 7514	 0.008	 0.000	 0.565
ACLProtocolData     	   16	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLServerNameData   	   16	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 1	 1	 1	 6.42	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
link_list           	   16	 	 	 	 	 	 	 	 1	 1	 1	 6.42	 0.000	 0	 0	 1	 6.42	 0.000	 1	 1	 1	 193581	 0.217	 0.006	 15.692
dlink_node          	   24	 	 	 	 	 	 	 	 0	 0	 1	 1.63	 0.000	 0	 0	 1	 1.63	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.001
cbdata RebuildState (16)	  944	 	 	 	 	 	 	 	 0	 0	 1	 6.42	 0.000	 0	 0	 1	 6.42	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
cbdata OptXactLauncher (42)	  128	 	 	 	 	 	 	 	 0	 0	 1	 6.42	 0.000	 0	 0	 1	 6.42	 -1.000	 0	 0	 1	 1	 0.000	 0.000	 0.000
cbdata OptXact (43) 	  320	 	 	 	 	 	 	 	 0	 0	 1	 6.42	 0.000	 0	 0	 1	 6.42	 -1.000	 0	 0	 1	 1	 0.000	 0.000	 0.000
HttpHdrRange        	   32	 	 	 	 	 	 	 	 0	 0	 1	 1.82	 0.000	 0	 0	 1	 1.82	 -1.000	 0	 0	 1	 314	 0.000	 0.000	 0.020
HttpHdrRangeSpec    	   16	 	 	 	 	 	 	 	 0	 0	 1	 1.82	 0.000	 0	 0	 1	 1.82	 -1.000	 0	 0	 1	 314	 0.000	 0.000	 0.020
cbdata CbDataList (49)	   96	 	 	 	 	 	 	 	 0	 0	 1	 6.21	 0.000	 0	 0	 1	 6.21	 -1.000	 0	 0	 1	 4662	 0.005	 0.001	 1.421
HttpHdrSc           	   16	 	 	 	 	 	 	 	 0	 0	 1	 2.84	 0.000	 0	 0	 1	 2.84	 -1.000	 0	 0	 1	 12	 0.000	 0.000	 0.005
HttpHdrScTarget     	   88	 	 	 	 	 	 	 	 0	 0	 1	 2.84	 0.000	 0	 0	 1	 2.84	 -1.000	 0	 0	 1	 12	 0.000	 0.000	 0.005
cbdata BodySink (50)	   80	 	 	 	 	 	 	 	 0	 0	 1	 2.34	 0.000	 0	 0	 1	 2.34	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
Auth::Negotiate::User	  184	 	 	 	 	 	 	 	 0	 0	 1	 1.63	 0.000	 0	 0	 1	 1.63	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
Auth::Negotiate::UserRequest	   88	 	 	 	 	 	 	 	 0	 0	 1	 1.63	 0.000	 0	 0	 1	 1.63	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
cbdata StateData (51)	   48	 	 	 	 	 	 	 	 0	 0	 1	 1.63	 0.000	 0	 0	 1	 1.63	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
cbdata helper_stateful_server (52)	  232	 	 	 	 	 	 	 	 0	 0	 1	 1.63	 0.000	 0	 0	 1	 1.63	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
Total               	    1	 	 	 	 	 	 	 	 170288	 148501	 150273	 0.03	 100.000	 168782	 144272	 146333	 0.03	 97.152	 1506	 4229	 18484	 87746747	 98.156	 98.226	 31638.278
Cumulative allocated volume: 51.921 GB
Current overhead: 43294 bytes (0.029%)
Idle pool limit: 5.00 MB
Total Pools created: 138
Pools ever used:     135 (shown above)
Currently in use:    102
String Pool	 Impact 
(%strings)	 (%volume)
Short Strings       	 90	 47
Medium Strings      	 8	 14
Long Strings        	 1	 8
1KB Strings         	 0	 3
4KB Strings         	 0	 9
16KB Strings        	 0	 11
Other Strings       	 0	 9

Large buffers: 0 (0 KB)

Again, a little later:

HTTP/1.1 200 OK
Server: squid
Mime-Version: 1.0
Date: Thu, 26 Oct 2017 08:39:42 GMT
Content-Type: text/plain;charset=utf-8
Expires: Thu, 26 Oct 2017 08:39:42 GMT
Last-Modified: Thu, 26 Oct 2017 08:39:42 GMT
X-Cache: MISS from inf-fw2
X-Cache-Lookup: MISS from inf-fw2:3128
Connection: close

Current memory usage:
Pool	 Obj Size	Chunks							Allocated					In Use					Idle			Allocations Saved			Rate 
(bytes)	KB/ch	 obj/ch	(#)	 used	 free	 part	 %Frag	 (#)	 (KB)	 high (KB)	 high (hrs)	 %Tot	(#)	 (KB)	 high (KB)	 high (hrs)	 %alloc	(#)	 (KB)	 high (KB)	(#)	 %cnt	 %vol	(#)/sec 
64K Buffer          	 65536	 	 	 	 	 	 	 	 1366	 87424	 89280	 0.01	 59.621	 1364	 87296	 89280	 0.01	 99.854	 2	 128	 5248	 288796	 0.317	 35.771	 19.344
mem_node            	 4136	 	 	 	 	 	 	 	 6798	 27458	 30843	 1.46	 18.725	 6783	 27397	 30843	 1.46	 99.779	 15	 61	 6802	 568521	 0.624	 4.444	 38.660
ExternalACLEntry    	  256	 	 	 	 	 	 	 	 17998	 4500	 4953	 4.40	 3.069	 17998	 4500	 4953	 4.40	 100.000	 0	 0	 4953	 591	 0.001	 0.000	 5.325
32K Buffer          	 32768	 	 	 	 	 	 	 	 136	 4352	 5984	 0.85	 2.968	 134	 4288	 5984	 0.85	 98.529	 2	 64	 2272	 51135	 0.056	 3.167	 5.133
Short Strings       	   40	 	 	 	 	 	 	 	 80835	 3158	 3208	 0.00	 2.153	 80636	 3150	 3208	 0.00	 99.754	 199	 8	 867	 51148695	 56.142	 3.867	 3308.818
16K Buffer          	 16384	 	 	 	 	 	 	 	 169	 2704	 6992	 4.43	 1.844	 169	 2704	 6992	 4.43	 100.000	 0	 0	 3152	 227118	 0.249	 7.033	 13.881
8K Buffer           	 8192	 	 	 	 	 	 	 	 290	 2320	 3464	 0.25	 1.582	 282	 2256	 3464	 0.25	 97.241	 8	 64	 1112	 294270	 0.323	 4.556	 21.610
HttpHeaderEntry     	   56	 	 	 	 	 	 	 	 34149	 1868	 1899	 0.00	 1.274	 34114	 1866	 1899	 0.00	 99.898	 35	 2	 590	 13142150	 14.425	 1.391	 835.378
4K Buffer           	 4096	 	 	 	 	 	 	 	 439	 1756	 2696	 1.59	 1.198	 409	 1636	 2696	 1.59	 93.166	 30	 120	 1012	 406215	 0.446	 3.145	 29.469
HttpRequest         	 1784	 	 	 	 	 	 	 	 873	 1521	 1631	 0.10	 1.037	 859	 1497	 1631	 0.10	 98.396	 14	 25	 295	 625953	 0.687	 2.111	 43.460
2K Buffer           	 2048	 	 	 	 	 	 	 	 539	 1078	 1416	 4.40	 0.735	 535	 1070	 1416	 4.40	 99.258	 4	 8	 768	 4472923	 4.910	 17.313	 209.220
Medium Strings      	  128	 	 	 	 	 	 	 	 7899	 988	 1002	 0.00	 0.673	 7893	 987	 1002	 0.00	 99.924	 6	 1	 360	 2798935	 3.072	 0.677	 186.051
16KB Strings        	 16384	 	 	 	 	 	 	 	 59	 944	 4400	 1.79	 0.644	 54	 864	 4400	 1.79	 91.525	 5	 80	 2368	 78587	 0.086	 2.434	 5.827
HttpReply           	  280	 	 	 	 	 	 	 	 3294	 901	 911	 0.00	 0.614	 3288	 900	 911	 0.00	 99.818	 6	 2	 291	 1049980	 1.152	 0.556	 70.385
MemObject           	  328	 	 	 	 	 	 	 	 2077	 666	 794	 4.41	 0.454	 2071	 664	 794	 4.41	 99.711	 6	 2	 339	 261223	 0.287	 0.162	 20.347
4KB Strings         	 4096	 	 	 	 	 	 	 	 149	 596	 1168	 1.50	 0.406	 142	 568	 1168	 1.50	 95.302	 7	 28	 444	 267713	 0.294	 2.072	 16.635
cbdata clientReplyContext (25)	 4352	 	 	 	 	 	 	 	 118	 502	 706	 0.16	 0.342	 109	 464	 706	 0.16	 92.373	 9	 39	 489	 270088	 0.296	 2.222	 18.736
cbdata ClientSocketContext (24)	 4256	 	 	 	 	 	 	 	 118	 491	 690	 0.16	 0.334	 109	 454	 690	 0.16	 92.373	 9	 38	 478	 270087	 0.296	 2.173	 18.736
Long Strings        	  512	 	 	 	 	 	 	 	 751	 376	 811	 4.43	 0.256	 718	 359	 811	 4.43	 95.606	 33	 17	 369	 692635	 0.760	 0.670	 52.968
Comm::Connection    	  200	 	 	 	 	 	 	 	 1499	 293	 307	 0.36	 0.200	 1464	 286	 307	 0.36	 97.665	 35	 7	 70	 623501	 0.684	 0.236	 59.278
cbdata Server (20)  	  520	 	 	 	 	 	 	 	 563	 286	 304	 0.52	 0.195	 542	 276	 304	 0.52	 96.270	 21	 11	 114	 111986	 0.123	 0.110	 10.935
cbdata BodyPipe (38)	  152	 	 	 	 	 	 	 	 1798	 267	 293	 0.64	 0.182	 1796	 267	 293	 0.64	 99.889	 2	 1	 109	 219412	 0.241	 0.063	 15.090
cbdata MemBuf (12)  	   64	 	 	 	 	 	 	 	 3382	 212	 215	 0.00	 0.144	 3377	 212	 215	 0.00	 99.852	 5	 1	 67	 1564605	 1.717	 0.189	 104.318
StoreEntry          	  104	 	 	 	 	 	 	 	 2081	 212	 1670	 6.50	 0.144	 2075	 211	 1670	 6.50	 99.712	 6	 1	 1478	 262085	 0.288	 0.052	 20.347
ClientInfo          	  448	 	 	 	 	 	 	 	 472	 207	 207	 0.02	 0.141	 472	 207	 207	 0.02	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.003
cbdata ModXact (41) 	  512	 	 	 	 	 	 	 	 309	 155	 164	 0.07	 0.105	 308	 154	 164	 0.07	 99.676	 1	 1	 16	 134215	 0.147	 0.130	 8.549
netdbEntry          	  168	 	 	 	 	 	 	 	 925	 152	 165	 1.99	 0.103	 925	 152	 165	 1.99	 100.000	 0	 0	 17	 286	 0.000	 0.000	 0.196
fqdncache_entry     	  160	 	 	 	 	 	 	 	 931	 146	 152	 2.24	 0.099	 920	 144	 152	 2.24	 98.818	 11	 2	 8	 30868	 0.034	 0.009	 3.083
cbdata idns_query (9)	 8696	 	 	 	 	 	 	 	 16	 136	 391	 2.36	 0.093	 0	 0	 391	 2.36	 0.000	 16	 136	 391	 64579	 0.071	 1.061	 5.881
ipcache_entry       	  128	 	 	 	 	 	 	 	 923	 116	 119	 2.28	 0.079	 923	 116	 119	 2.28	 100.000	 0	 0	 5	 16903	 0.019	 0.004	 1.528
MemBlob             	   48	 	 	 	 	 	 	 	 2438	 115	 145	 1.38	 0.078	 2304	 108	 145	 1.38	 94.504	 134	 7	 33	 3118212	 3.423	 0.283	 223.259
HttpHdrCc           	   96	 	 	 	 	 	 	 	 1159	 109	 159	 4.43	 0.074	 1158	 109	 159	 4.43	 99.914	 1	 1	 70	 493512	 0.542	 0.090	 28.676
1KB Strings         	 1024	 	 	 	 	 	 	 	 101	 101	 208	 0.37	 0.069	 97	 97	 208	 0.37	 96.040	 4	 4	 107	 137459	 0.151	 0.266	 11.691
LRU policy node     	   24	 	 	 	 	 	 	 	 3530	 83	 384	 6.50	 0.056	 3530	 83	 384	 6.50	 100.000	 0	 0	 341	 33829	 0.037	 0.002	 9.150
net_db_name         	   32	 	 	 	 	 	 	 	 2187	 69	 72	 0.24	 0.047	 2187	 69	 72	 0.24	 100.000	 0	 0	 6	 540	 0.001	 0.000	 0.336
cbdata ClientHttpRequest (23)	  392	 	 	 	 	 	 	 	 144	 56	 77	 0.10	 0.038	 131	 51	 77	 0.10	 90.972	 13	 5	 46	 269589	 0.296	 0.200	 18.736
cbdata IdleConnList (18)	 4160	 	 	 	 	 	 	 	 12	 49	 252	 2.05	 0.033	 11	 45	 252	 2.05	 91.667	 1	 5	 200	 13861	 0.015	 0.109	 0.663
NotePairs::Entry    	   48	 	 	 	 	 	 	 	 995	 47	 47	 0.00	 0.032	 992	 47	 47	 0.00	 99.698	 3	 1	 46	 18882	 0.021	 0.002	 1.346
cbdata store_client (31)	  160	 	 	 	 	 	 	 	 263	 42	 56	 1.60	 0.028	 256	 40	 56	 1.60	 97.338	 7	 2	 27	 281020	 0.308	 0.085	 19.251
MD5 digest          	   16	 	 	 	 	 	 	 	 2081	 33	 257	 6.50	 0.022	 2075	 33	 257	 6.50	 99.712	 6	 1	 228	 294523	 0.323	 0.009	 25.016
cbdata clientStreamNode (26)	  128	 	 	 	 	 	 	 	 236	 30	 42	 0.16	 0.020	 218	 28	 42	 0.16	 92.373	 18	 3	 29	 540176	 0.593	 0.131	 37.472
cbdata ServerBump (30)	  104	 	 	 	 	 	 	 	 234	 24	 34	 1.60	 0.016	 219	 23	 34	 1.60	 93.590	 15	 2	 17	 83160	 0.091	 0.016	 7.626
MimeEntry           	  128	 	 	 	 	 	 	 	 177	 23	 23	 6.50	 0.015	 177	 23	 23	 6.50	 100.000	 0	 0	 23	 1062	 0.001	 0.000	 0.000
cbdata helper_server (11)	  240	 	 	 	 	 	 	 	 55	 13	 13	 0.17	 0.009	 55	 13	 13	 0.17	 100.000	 0	 0	 9	 209	 0.000	 0.000	 0.000
cbdata HttpStateData (36)	  320	 	 	 	 	 	 	 	 32	 10	 19	 0.15	 0.007	 32	 10	 19	 0.15	 100.000	 0	 0	 15	 135965	 0.149	 0.082	 8.642
cbdata FwdState (32)	  176	 	 	 	 	 	 	 	 56	 10	 19	 0.08	 0.007	 43	 8	 19	 0.08	 76.786	 13	 3	 14	 216432	 0.238	 0.072	 15.828
Acl::AndNode        	  160	 	 	 	 	 	 	 	 44	 7	 7	 6.50	 0.005	 44	 7	 7	 6.50	 100.000	 0	 0	 7	 264	 0.000	 0.000	 0.000
cbdata ACLFilledChecklist (22)	  464	 	 	 	 	 	 	 	 10	 5	 11	 2.36	 0.003	 1	 1	 11	 2.36	 10.000	 9	 5	 11	 772759	 0.848	 0.678	 56.648
ACLStrategised      	  160	 	 	 	 	 	 	 	 19	 3	 3	 6.50	 0.002	 19	 3	 3	 6.50	 100.000	 0	 0	 3	 114	 0.000	 0.000	 0.000
cbdata PeerConnector (35)	  136	 	 	 	 	 	 	 	 22	 3	 9	 0.08	 0.002	 10	 2	 9	 0.08	 45.455	 12	 2	 9	 79214	 0.087	 0.020	 7.172
cbdata Iterator (39)	  168	 	 	 	 	 	 	 	 15	 3	 8	 0.85	 0.002	 15	 3	 8	 0.85	 100.000	 0	 0	 6	 134291	 0.147	 0.043	 8.549
cbdata ServiceRep (17)	  344	 	 	 	 	 	 	 	 7	 3	 3	 0.86	 0.002	 7	 3	 3	 0.86	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
cbdata ModXactLauncher (40)	  160	 	 	 	 	 	 	 	 15	 3	 8	 0.85	 0.002	 14	 3	 8	 0.85	 93.333	 1	 1	 5	 134308	 0.147	 0.041	 8.549
cbdata Tree (4)     	  216	 	 	 	 	 	 	 	 11	 3	 3	 6.50	 0.002	 11	 3	 3	 6.50	 100.000	 0	 0	 3	 66	 0.000	 0.000	 0.000
Acl::NotNode        	  160	 	 	 	 	 	 	 	 14	 3	 3	 6.50	 0.001	 14	 3	 3	 6.50	 100.000	 0	 0	 3	 84	 0.000	 0.000	 0.000
acl_ip_data         	   96	 	 	 	 	 	 	 	 19	 2	 2	 6.50	 0.001	 19	 2	 2	 6.50	 100.000	 0	 0	 2	 289	 0.000	 0.000	 0.000
cbdata ConnOpener (34)	  136	 	 	 	 	 	 	 	 11	 2	 10	 0.08	 0.001	 1	 1	 10	 0.08	 9.091	 10	 2	 10	 101038	 0.111	 0.026	 9.638
cbdata ClientRequestContext (27)	  104	 	 	 	 	 	 	 	 12	 2	 4	 0.16	 0.001	 1	 1	 4	 0.16	 8.333	 11	 2	 4	 268308	 0.294	 0.053	 18.499
HttpHdrContRange    	   24	 	 	 	 	 	 	 	 48	 2	 2	 0.27	 0.001	 48	 2	 2	 0.27	 100.000	 0	 0	 1	 410	 0.000	 0.000	 0.000
cbdata AccessCheck (29)	  152	 	 	 	 	 	 	 	 7	 2	 4	 0.65	 0.001	 0	 0	 4	 0.65	 0.000	 7	 2	 4	 359554	 0.395	 0.103	 24.631
RegexList           	   88	 	 	 	 	 	 	 	 10	 1	 1	 6.50	 0.001	 10	 1	 1	 6.50	 100.000	 0	 0	 1	 60	 0.000	 0.000	 0.000
ACLSourceIP         	  144	 	 	 	 	 	 	 	 6	 1	 1	 6.50	 0.001	 6	 1	 1	 6.50	 100.000	 0	 0	 1	 36	 0.000	 0.000	 0.000
Helper::Request     	   48	 	 	 	 	 	 	 	 17	 1	 2	 0.17	 0.001	 4	 1	 2	 0.17	 23.529	 13	 1	 2	 162246	 0.178	 0.015	 12.498
ACLStrategised      	  160	 	 	 	 	 	 	 	 5	 1	 1	 6.50	 0.001	 5	 1	 1	 6.50	 100.000	 0	 0	 1	 30	 0.000	 0.000	 0.000
cbdata WriteRequest (47)	   80	 	 	 	 	 	 	 	 10	 1	 6	 4.36	 0.001	 0	 0	 6	 4.36	 0.000	 10	 1	 6	 196846	 0.216	 0.030	 23.134
cbdata UFSStoreState (45)	  176	 	 	 	 	 	 	 	 4	 1	 3	 0.34	 0.000	 4	 1	 3	 0.34	 100.000	 0	 0	 3	 30203	 0.033	 0.010	 4.587
ev_entry            	   48	 	 	 	 	 	 	 	 14	 1	 2	 0.32	 0.000	 14	 1	 2	 0.32	 100.000	 0	 0	 1	 63810	 0.070	 0.006	 2.712
cbdata externalAclState (14)	   88	 	 	 	 	 	 	 	 7	 1	 2	 0.08	 0.000	 1	 1	 2	 0.08	 14.286	 6	 1	 2	 82716	 0.091	 0.014	 5.373
cbdata generic_cbdata (21)	   32	 	 	 	 	 	 	 	 16	 1	 2	 2.36	 0.000	 4	 1	 2	 2.36	 25.000	 12	 1	 2	 89441	 0.098	 0.005	 10.084
cbdata helper (10)  	  168	 	 	 	 	 	 	 	 3	 1	 1	 0.86	 0.000	 3	 1	 1	 0.86	 100.000	 0	 0	 1	 17	 0.000	 0.000	 0.000
wordlist            	   16	 	 	 	 	 	 	 	 31	 1	 2	 0.86	 0.000	 31	 1	 2	 0.86	 100.000	 0	 0	 1	 837	 0.001	 0.000	 0.000
cbdata CbDataList (2)	   40	 	 	 	 	 	 	 	 12	 1	 1	 6.50	 0.000	 12	 1	 1	 6.50	 100.000	 0	 0	 1	 72	 0.000	 0.000	 0.000
ACLExternal         	  152	 	 	 	 	 	 	 	 3	 1	 1	 6.50	 0.000	 3	 1	 1	 6.50	 100.000	 0	 0	 1	 18	 0.000	 0.000	 0.000
ACLStringData       	   56	 	 	 	 	 	 	 	 8	 1	 1	 6.50	 0.000	 8	 1	 1	 6.50	 100.000	 0	 0	 1	 18	 0.000	 0.000	 0.000
cbdata DiskdFile (46)	  104	 	 	 	 	 	 	 	 4	 1	 2	 0.34	 0.000	 4	 1	 2	 0.34	 100.000	 0	 0	 2	 30203	 0.033	 0.006	 4.587
ACLRegexData        	   16	 	 	 	 	 	 	 	 25	 1	 1	 6.50	 0.000	 25	 1	 1	 6.50	 100.000	 0	 0	 1	 54	 0.000	 0.000	 0.000
cbdata CbDataList (1)	   40	 	 	 	 	 	 	 	 10	 1	 1	 6.50	 0.000	 10	 1	 1	 6.50	 100.000	 0	 0	 1	 60	 0.000	 0.000	 0.000
cbdata external_acl (5)	  192	 	 	 	 	 	 	 	 2	 1	 1	 6.50	 0.000	 2	 1	 1	 6.50	 100.000	 0	 0	 1	 12	 0.000	 0.000	 0.000
ACLCertificateData  	  120	 	 	 	 	 	 	 	 3	 1	 1	 6.50	 0.000	 3	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
acl_name_list       	   72	 	 	 	 	 	 	 	 5	 1	 1	 6.50	 0.000	 5	 1	 1	 6.50	 100.000	 0	 0	 1	 30	 0.000	 0.000	 0.000
cbdata Logfile (15) 	  352	 	 	 	 	 	 	 	 1	 1	 1	 5.84	 0.000	 1	 1	 1	 5.84	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.003
ACLStrategised      	  160	 	 	 	 	 	 	 	 2	 1	 1	 6.50	 0.000	 2	 1	 1	 6.50	 100.000	 0	 0	 1	 12	 0.000	 0.000	 0.000
cbdata TcpAcceptor (19)	  104	 	 	 	 	 	 	 	 3	 1	 1	 6.50	 0.000	 3	 1	 1	 6.50	 100.000	 0	 0	 1	 18	 0.000	 0.000	 0.000
ACLDestinationIP    	  144	 	 	 	 	 	 	 	 2	 1	 1	 6.50	 0.000	 2	 1	 1	 6.50	 100.000	 0	 0	 1	 12	 0.000	 0.000	 0.000
ACLUserData         	   64	 	 	 	 	 	 	 	 4	 1	 1	 6.50	 0.000	 4	 1	 1	 6.50	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
cbdata ps_state (33)	  256	 	 	 	 	 	 	 	 1	 1	 1	 0.13	 0.000	 0	 0	 1	 0.13	 0.000	 1	 1	 1	 219697	 0.241	 0.106	 15.828
cbdata ErrorState (37)	  240	 	 	 	 	 	 	 	 1	 1	 3	 0.13	 0.000	 0	 0	 3	 0.13	 0.000	 1	 1	 3	 53986	 0.059	 0.024	 3.008
cbdata RemovalPolicy (7)	  104	 	 	 	 	 	 	 	 2	 1	 1	 6.50	 0.000	 2	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
cbdata statefulhelper (13)	  192	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
AclDenyInfoList     	   32	 	 	 	 	 	 	 	 5	 1	 1	 6.50	 0.000	 5	 1	 1	 6.50	 100.000	 0	 0	 1	 30	 0.000	 0.000	 0.000
ACLStrategised      	  160	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
ACLProxyAuth        	  152	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
ACLDomainData       	   16	 	 	 	 	 	 	 	 9	 1	 1	 6.50	 0.000	 9	 1	 1	 6.50	 100.000	 0	 0	 1	 42	 0.000	 0.000	 0.000
cbdata external_acl_data (6)	   48	 	 	 	 	 	 	 	 3	 1	 1	 6.50	 0.000	 3	 1	 1	 6.50	 100.000	 0	 0	 1	 18	 0.000	 0.000	 0.000
external_acl_format 	   64	 	 	 	 	 	 	 	 2	 1	 1	 6.50	 0.000	 2	 1	 1	 6.50	 100.000	 0	 0	 1	 12	 0.000	 0.000	 0.000
cbdata StoreSearchHashIndex (28)	  104	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
ACLHTTPHeaderData   	   48	 	 	 	 	 	 	 	 2	 1	 1	 6.50	 0.000	 2	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLSslErrorData     	   16	 	 	 	 	 	 	 	 6	 1	 1	 6.50	 0.000	 6	 1	 1	 6.50	 100.000	 0	 0	 1	 30	 0.000	 0.000	 0.000
cbdata CbDataList (3)	   64	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
FwdServer           	   24	 	 	 	 	 	 	 	 2	 1	 1	 0.13	 0.000	 0	 0	 1	 0.13	 0.000	 2	 1	 1	 324323	 0.356	 0.015	 21.304
ACLNoteData         	   40	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
CacheDigest         	   40	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLHierCodeData     	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLMethodData       	   16	 	 	 	 	 	 	 	 2	 1	 1	 6.50	 0.000	 2	 1	 1	 6.50	 100.000	 0	 0	 1	 6	 0.000	 0.000	 0.000
ACLTimeData         	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLAtStepData       	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLASN              	   16	 	 	 	 	 	 	 	 2	 1	 1	 6.50	 0.000	 2	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
StoreMetaMD5        	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 0	 0	 1	 6.50	 0.000	 1	 1	 1	 30374	 0.033	 0.002	 4.587
StoreMetaSTDLFS     	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 0	 0	 1	 6.50	 0.000	 1	 1	 1	 30374	 0.033	 0.002	 4.587
StoreMetaURL        	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 0	 0	 1	 6.50	 0.000	 1	 1	 1	 30374	 0.033	 0.002	 4.587
StoreMetaObjSize    	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 0	 0	 1	 6.50	 0.000	 1	 1	 1	 30374	 0.033	 0.002	 4.587
UFSStoreState::_queued_write	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 0	 0	 1	 6.50	 0.000	 1	 1	 1	 200314	 0.220	 0.012	 23.134
StoreMetaVary       	   32	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 0	 0	 1	 6.50	 0.000	 1	 1	 1	 7963	 0.009	 0.000	 1.559
ACLProtocolData     	   16	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
ACLServerNameData   	   16	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 1	 1	 1	 6.50	 100.000	 0	 0	 0	 0	 0.000	 0.000	 0.000
link_list           	   16	 	 	 	 	 	 	 	 1	 1	 1	 6.50	 0.000	 0	 0	 1	 6.50	 0.000	 1	 1	 1	 200314	 0.220	 0.006	 23.134
dlink_node          	   24	 	 	 	 	 	 	 	 0	 0	 1	 1.71	 0.000	 0	 0	 1	 1.71	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
dwrite_q            	   48	 	 	 	 	 	 	 	 0	 0	 1	 6.50	 0.000	 0	 0	 1	 6.50	 -1.000	 0	 0	 1	 91807	 0.101	 0.008	 7.667
cbdata nsvc (8)     	   72	 	 	 	 	 	 	 	 0	 0	 1	 6.50	 0.000	 0	 0	 1	 6.50	 -1.000	 0	 0	 1	 75	 0.000	 0.000	 0.003
cbdata RebuildState (16)	  944	 	 	 	 	 	 	 	 0	 0	 1	 6.50	 0.000	 0	 0	 1	 6.50	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
StoreSwapLogData    	   72	 	 	 	 	 	 	 	 0	 0	 1	 6.50	 0.000	 0	 0	 1	 6.50	 -1.000	 0	 0	 1	 91806	 0.101	 0.012	 7.667
cbdata OptXactLauncher (42)	  128	 	 	 	 	 	 	 	 0	 0	 1	 6.50	 0.000	 0	 0	 1	 6.50	 -1.000	 0	 0	 1	 1	 0.000	 0.000	 0.000
cbdata OptXact (43) 	  320	 	 	 	 	 	 	 	 0	 0	 1	 6.50	 0.000	 0	 0	 1	 6.50	 -1.000	 0	 0	 1	 1	 0.000	 0.000	 0.000
cbdata RemovalPurgeWalker (44)	   72	 	 	 	 	 	 	 	 0	 0	 1	 6.50	 0.000	 0	 0	 1	 6.50	 -1.000	 0	 0	 1	 2048	 0.002	 0.000	 0.312
cbdata ReadRequest (48)	   72	 	 	 	 	 	 	 	 0	 0	 1	 6.38	 0.000	 0	 0	 1	 6.38	 -1.000	 0	 0	 1	 111	 0.000	 0.000	 0.000
HttpHdrRange        	   32	 	 	 	 	 	 	 	 0	 0	 1	 1.90	 0.000	 0	 0	 1	 1.90	 -1.000	 0	 0	 1	 314	 0.000	 0.000	 0.000
HttpHdrRangeSpec    	   16	 	 	 	 	 	 	 	 0	 0	 1	 1.90	 0.000	 0	 0	 1	 1.90	 -1.000	 0	 0	 1	 314	 0.000	 0.000	 0.000
cbdata CbDataList (49)	   96	 	 	 	 	 	 	 	 0	 0	 1	 6.29	 0.000	 0	 0	 1	 6.29	 -1.000	 0	 0	 1	 4662	 0.005	 0.001	 0.000
HttpHdrSc           	   16	 	 	 	 	 	 	 	 0	 0	 1	 2.92	 0.000	 0	 0	 1	 2.92	 -1.000	 0	 0	 1	 12	 0.000	 0.000	 0.000
HttpHdrScTarget     	   88	 	 	 	 	 	 	 	 0	 0	 1	 2.92	 0.000	 0	 0	 1	 2.92	 -1.000	 0	 0	 1	 12	 0.000	 0.000	 0.000
cbdata BodySink (50)	   80	 	 	 	 	 	 	 	 0	 0	 1	 2.42	 0.000	 0	 0	 1	 2.42	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
Auth::Negotiate::User	  184	 	 	 	 	 	 	 	 0	 0	 1	 1.71	 0.000	 0	 0	 1	 1.71	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
Auth::Negotiate::UserRequest	   88	 	 	 	 	 	 	 	 0	 0	 1	 1.71	 0.000	 0	 0	 1	 1.71	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
cbdata StateData (51)	   48	 	 	 	 	 	 	 	 0	 0	 1	 1.71	 0.000	 0	 0	 1	 1.71	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
cbdata helper_stateful_server (52)	  232	 	 	 	 	 	 	 	 0	 0	 1	 1.71	 0.000	 0	 0	 1	 1.71	 -1.000	 0	 0	 1	 0	 0.000	 0.000	 0.000
Total               	    1	 	 	 	 	 	 	 	 185173	 146634	 151763	 0.00	 100.000	 184369	 145755	 146812	 0.00	 99.401	 804	 880	 18484	 89409360	 98.137	 98.206	 312807.853
Cumulative allocated volume: 52.910 GB
Current overhead: 43294 bytes (0.029%)
Idle pool limit: 5.00 MB
Total Pools created: 138
Pools ever used:     135 (shown above)
Currently in use:    103
String Pool	 Impact 
(%strings)	 (%volume)
Short Strings       	 90	 48
Medium Strings      	 9	 15
Long Strings        	 1	 5
1KB Strings         	 0	 1
4KB Strings         	 0	 9
16KB Strings        	 0	 13
Other Strings       	 0	 8

Large buffers: 0 (0 KB)

Finally, storedir:

Store Directory Statistics:
Store Entries          : 1673
Maximum Swap Size      : 32768 KB
Current Store Swap Size: 29484.00 KB
Current Capacity       : 89.98% used, 10.02% free

Store Directory #0 (diskd): /var/cache/squid
FS Block Size 4096 Bytes
First level subdirectories: 16
Second level subdirectories: 256
Maximum Size: 32768 KB
Current Size: 29484.00 KB
Percent Used: 89.98%
Filemap bits in use: 1338 of 16384 (8%)
Filesystem Space in use: 44360368/192108884 KB (23%)
Filesystem Inodes in use: 454196/12271616 (4%)
Flags: SELECTED
Pending operations: 0
Removal policy: lru
LRU reference age: 0.01 days

# free --bytes
total        used        free      shared  buff/cache   available
Mem:    33653817344  3982090240   929779712   162263040 28741947392 29162274816
Swap:   37925875712   173297664 37752578048

I read Alex's e-mail too late, so I'll try to attach gdb next time.
The problem is that Squid continues to respond, but slowly.
Having a backup Squid is not that simple in my scenario because I require to do content analysis on ssl-bumped traffic. I'm using TPROXY on the gateway/firewall with Squid. A true backup on this production system would mean having a full conntrackd'ed firewall with Squid as I cannot TPROXY on a redirected machine.
I know Squid 4 is recommended for SSL-Bump, but it's still beta, and I'm not sure I can take that leap now.

I didn't run mgr:events while the CPU was at 100%, but here's what came up afterwards:

# squidclient mgr:events
HTTP/1.1 200 OK
Server: squid
Mime-Version: 1.0
Date: Thu, 26 Oct 2017 11:02:42 GMT
Content-Type: text/plain;charset=utf-8
Expires: Thu, 26 Oct 2017 11:02:42 GMT
Last-Modified: Thu, 26 Oct 2017 11:02:42 GMT
X-Cache: MISS from inf-fw2
X-Cache-Lookup: MISS from inf-fw2:3128
Connection: close

Last event to run: MaintainSwapSpace

Operation                       Next Execution  Weight  Callback Valid?
logfileFlush                    0.511 sec           1    yes
MaintainSwapSpace               0.511 sec           1    N/A
fqdncache_purgelru              1.481 sec           1    N/A
idnsCheckQueue                  2.507 sec           1    N/A
statAvgTick                     3.821 sec           1    N/A
storeDirClean                   5.484 sec           1    N/A
memPoolCleanIdlePools           5.484 sec           1    N/A
ipcache_purgelru                6.900 sec           1    N/A
peerRefreshDNS                  348.872 sec         1    N/A
netdbSaveState                  678.327 sec         1    N/A
Adaptation::Icap::ServiceRep::noteTimeToUpdate  3243.778 sec        0    yes
User Cache Maintenance          3302.980 sec        1    N/A
storeDigestRebuildStart         3303.451 sec        1    N/A
storeDigestRewriteStart         3303.451 sec        1    N/A

# squidclient mgr:events
HTTP/1.1 200 OK
Server: squid
Mime-Version: 1.0
Date: Thu, 26 Oct 2017 11:08:04 GMT
Content-Type: text/plain;charset=utf-8
Expires: Thu, 26 Oct 2017 11:08:04 GMT
Last-Modified: Thu, 26 Oct 2017 11:08:04 GMT
X-Cache: MISS from inf-fw2
X-Cache-Lookup: MISS from inf-fw2:3128
Connection: close

Last event to run: fqdncache_purgelru

Operation                       Next Execution  Weight  Callback Valid?
logfileFlush                    0.141 sec           1    yes
MaintainSwapSpace               0.141 sec           1    N/A
idnsCheckQueue                  3.212 sec           1    N/A
ipcache_purgelru                5.393 sec           1    N/A
fqdncache_purgelru              9.962 sec           1    N/A
storeDirClean                   13.942 sec          1    N/A
memPoolCleanIdlePools           13.942 sec          1    N/A
peerRefreshDNS                  27.243 sec          1    N/A
statAvgTick                     42.223 sec          1    N/A
netdbSaveState                  356.698 sec         1    N/A
Adaptation::Icap::ServiceRep::noteTimeToUpdate  2922.149 sec        0    yes
User Cache Maintenance          2981.351 sec        1    N/A
storeDigestRebuildStart         2981.822 sec        1    N/A
storeDigestRewriteStart         2981.822 sec        1    N/A

I haven't been able to associate the 100% CPU issue with a scheduled event.
I'll keep looking.

Thanks,

Vieri


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