[squid-users] stoping after rotate

[Jorgeley Junior]

ok, read that already, i set cache_mem to 5GB, so is not ok?

2015-09-08 20:25 GMT-03:00 Marcus Kool <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>>:
>>
>>
>>
>>     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>>>:
>>
>>              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>>>> 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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