[squid-users] stoping after rotate

Jorgeley Junior jorgeley at gmail.com
Wed Sep 9 00:43:01 UTC 2015


ok, I'll do it

2015-09-08 21:30 GMT-03:00 Marcus Kool <marcus.kool at urlfilterdb.com>:

>
>
> On 09/08/2015 09:23 PM, Jorgeley Junior wrote:
>
>> ok, read that already, i set cache_mem to 5GB, so is not ok?
>>
>
> No. Squid will use more than 6 GB with cache_mem set to 5 GB.
> I suggest that you use 2500 MB and after Squid runs for 1 hour, see what
> the total process size is.
>
> Marcus
>
>
> 2015-09-08 20:25 GMT-03:00 Marcus Kool <marcus.kool at urlfilterdb.com
>> <mailto:marcus.kool at urlfilterdb.com>>:
>>
>>
>>
>>     On 09/08/2015 10:39 AM, Jorgeley Junior wrote:
>>
>>         I have 8GB physical memory and my swap is 32GB.
>>         I didn't increase the swap yet, should I?
>>
>>
>>     You must start with reading the memory FAQ:
>> http://wiki.squid-cache.org/SquidFaq/SquidMemory
>>
>>     The general rule for all processes applies: make sure that a process
>> is *not* larger than 80% of the physical memory.
>>     In your case, you must reduce cache_mem and make sure that Squid does
>> not use more than 6 GB.
>>
>>     A swap of 32 GB is fine for a system with 8 GB physical memory.
>>
>>     I also suggest to consider a memory upgrade.
>>
>>     Marcus
>>
>>
>>         2015-09-08 9:23 GMT-03:00 Marcus Kool <
>> marcus.kool at urlfilterdb.com <mailto:marcus.kool at urlfilterdb.com> <mailto:
>> marcus.kool at urlfilterdb.com <mailto:marcus.kool at urlfilterdb.com>>>:
>>
>>
>>
>>              On 09/08/2015 08:11 AM, Jorgeley Junior wrote:
>>
>>                  Thank you all, this is the output:
>>                  vm.overcommit_memory = 0
>>                  vm.swappiness = 60
>>                  I have a Redhat 6.6
>>
>>
>>              The value of vm.overcommit_memory is OK.
>>              The default value for vm.swappiness is way too high. It
>> means that Linux swaps out parts of processes when they are idle for a
>> while.
>>              For better overall system performance, you want those
>> processes in memory as long as possible and not swapped out so I recommend
>> to change it to 15.
>>              This implies that the OS has 15% of the physical memory
>> available for file system buffers which is plenty.
>>
>>              You only mentioned that the swap is 32 GB.  What is the size
>> of the physical memory ?
>>
>>              Did you already increase the swap ?
>>
>>              Marcus
>>
>>
>>                  2015-09-05 15:08 GMT-03:00 Marcus Kool <
>> marcus.kool at urlfilterdb.com <mailto:marcus.kool at urlfilterdb.com> <mailto:
>> marcus.kool at urlfilterdb.com <mailto:marcus.kool at urlfilterdb.com>>
>>         <mailto:marcus.kool at urlfilterdb.com <mailto:
>> marcus.kool at urlfilterdb.com> <mailto:marcus.kool at urlfilterdb.com <mailto:
>> marcus.kool at urlfilterdb.com>>>>:
>>
>>                       On Linux, an important sysctl parameter that
>> determines how Linux behaves with respect to VM allocation is
>> vm.overcommit_memory (should be 0).
>>                       And vm.swappiness is important to tune servers
>> (should be 10-15).
>>
>>                       Which version of Linux do you have and what is the
>> output of
>>                           sysctl -a | grep -e vm.overcommit_memory -e
>> vm.swappiness
>>
>>                       Marcus
>>
>>
>>                       On 09/04/2015 07:04 PM, Jorgeley Junior wrote:
>>
>>                           Thanks Amos, i will increase the swap
>>
>>                           Em 04/09/2015 17:22, "Amos Jeffries" <
>> squid3 at treenet.co.nz <mailto:squid3 at treenet.co.nz> <mailto:
>> squid3 at treenet.co.nz <mailto:squid3 at treenet.co.nz>>
>>         <mailto:squid3 at treenet.co.nz <mailto:squid3 at treenet.co.nz>
>> <mailto:squid3 at treenet.co.nz <mailto:squid3 at treenet.co.nz>>> <mailto:
>> squid3 at treenet.co.nz <mailto:squid3 at treenet.co.nz>
>>                  <mailto:squid3 at treenet.co.nz <mailto:
>> squid3 at treenet.co.nz>> <mailto:squid3 at treenet.co.nz <mailto:
>> squid3 at treenet.co.nz> <mailto:squid3 at treenet.co.nz <mailto:
>> squid3 at treenet.co.nz>>>>>
>>         escreveu:
>>
>>                                On 5/09/2015 7:16 a.m., Jorgeley Junior
>> wrote:
>>                                 > Thanks Amos, my swap is 32GB, so that's
>> causing the error as you said.
>>                                 > Which is the better choice: increase
>> the swap size or reduce the
>>                                 > cache_mem???
>>                                 >
>>
>>                                Both probably. 128 GB swap I suspect you
>> will need.
>>
>>                                Increase the swap so the system lets Squid
>> use more virtual memory.
>>
>>                                Decrease the cache_mem so that Squid does
>> not actually end up using the
>>                                swap for its main worker processes. That
>> is a real killer for performance.
>>
>>
>>                                Amos
>>
>>
>>
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>>
>>
>>
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