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Not to mention only 10GB of cache is almost useless for us... lol<br>
<br>
But I still think cpu is cpu and i/o is i/o. "WAIT" fields on both
TOP and VMSTAT shows almost always a ZERO<br>
<br>
Why would it show a process using cpu while actually it's waiting
for a I/O.. ?<br>
<br>
Best Regards<br>
<br>
<pre class="moz-signature" cols="72">--
Heiler Bemerguy - (91) 98151-4894
Assessor Técnico - CINBESA (91) 3184-1751</pre>
<br>
<div class="moz-cite-prefix">Em 24/02/2016 17:13, Yuri Voinov
escreveu:<br>
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<blockquote cite="mid:56CE0EDB.1000501@gmail.com" type="cite">
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AFAIK, if you solve issue with cache_mem 10 GB and completely disabled
disk cache, then you had disk IO bottleneck exactly. You completely
disable disk caches. So, all obvious now.
But - what you will do after squid restart? :))))))))))))) A deadly cold
memory cache, hehehe
25.02.16 1:44, Heiler Bemerguy пишет:
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Hi Eliezer, thanks for your reply.
As you've suggested, I removed all cache_dirs to verify if the rest
</pre>
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<pre wrap="">was stable/fast and raised cache_mem to 10GB. I didn't disable access
logs because we really need it..
</pre>
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And it is super fast, I can't even notice it using only ONE core..
</pre>
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<pre wrap="">(and it isn't running as smp)
</pre>
<blockquote type="cite">
<pre wrap="">
%Cpu0 : 0,7 us, 1,0 sy, 0,0 ni, 98,3 id, 0,0 wa, 0,0 hi, 0,0
</pre>
</blockquote>
<pre wrap="">si, 0,0 st
</pre>
<blockquote type="cite">
<pre wrap="">%Cpu1 : 8,8 us, 5,6 sy, 0,0 ni, 76,1 id, 0,0 wa, 0,0 hi, 9,5
</pre>
</blockquote>
<pre wrap="">si, 0,0 st
</pre>
<blockquote type="cite">
<pre wrap="">%Cpu2 : 8,7 us, 4,0 sy, 0,0 ni, 83,3 id, 0,0 wa, 0,0 hi, 4,0
</pre>
</blockquote>
<pre wrap="">si, 0,0 st
</pre>
<blockquote type="cite">
<pre wrap="">%Cpu3 : 5,4 us, 3,4 sy, 0,0 ni, 86,2 id, 0,0 wa, 0,0 hi, 5,0
</pre>
</blockquote>
<pre wrap="">si, 0,0 st
</pre>
<blockquote type="cite">
<pre wrap="">%Cpu4 : 7,8 us, 5,1 sy, 0,0 ni, 73,5 id, 6,8 wa, 0,0 hi, 6,8
</pre>
</blockquote>
<pre wrap="">si, 0,0 st
</pre>
<blockquote type="cite">
<pre wrap="">%Cpu5 : 1,0 us, 1,0 sy, 0,0 ni, 98,0 id, 0,0 wa, 0,0 hi, 0,0
</pre>
</blockquote>
<pre wrap="">si, 0,0 st
</pre>
<blockquote type="cite">
<pre wrap="">
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
11604 proxy 20 0 11,6g 11g 5232 S 48,4 72,2 72:31.24 squid
Start Time: Wed, 24 Feb 2016 15:38:59 GMT
Current Time: Wed, 24 Feb 2016 19:18:30 GMT
Connection information for squid:
Number of clients accessing cache: 1433
Number of HTTP requests received: 2532800
Average HTTP requests per minute since start: 11538.5
Select loop called: 68763019 times, 0.192 ms avg
Storage Mem size: 9874500 KB
Storage Mem capacity: 94.2% used, 5.8% free
I don't think I had a bottleneck on I/O itself, maybe the hash/search
</pre>
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<pre wrap="">of cache indexes was too much for a single thread?
</pre>
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Best Regards,
</pre>
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