[squid-users] Rock Store max object size 3.5.14

[Yuri Voinov]

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24.02.16 1:11, Heiler Bemerguy пишет:
>
> Thanks Alex.
>
> We have a simple cache_dir config like this, with no "workers" defined:
> cache_dir rock /cache2 80000 min-size=0 max-size=32767
> cache_dir aufs /cache 320000 96 256 min-size=32768
>
> And we are suffering from a 100% CPU use by a single squid thread. We
have lots of ram, cores and disk space.. but also too many users:
> Number of clients accessing cache:      1634
> Number of HTTP requests received:       3276691
> Average HTTP requests per minute since start:   12807.1
> Select loop called: 60353401 times, 22.017 ms avg
>
> Getting rid of this big aufs and spreading to many rock stores will
improve things here? I've already shrunk the acls and patterns/regexes etc
This is obvious improvements.

If you have only one-two HDD controllers, you have bottleneck in IO. You
much cores waits HDD access alltogether.........

First of all you need:

- - Either many HDD controllers/IO channels;
- - Or Disk array(s) with high-speed controllers and with huge own cache;
- - Fast HDD array must have fast IO subsystem. For example, FC SAN, or
something.

>
> Best Regards,
>

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