[squid-users] I want to know the concerns of load testing

[m k]

Amos san, Alex san,

Thank you for your reply.

Change squid to compile from source.
Also change the NTLM authentication to KRB.

I understand that error and response speed are more important than CPU.

The CPU is not 100%, but the number of simultaneous connections does not
exceed 450. In netstat, FIN_WAIT was over 10000. Is there a way to reduce
FiN_WAIT?

Also, can socks proxy be used with squid? If not, what are you using as an
alternative?

thank you,
kitamura

2020年10月2日(金) 23:09 Alex Rousskov <rousskov at measurement-factory.com>:

> On 10/2/20 1:26 AM, m k wrote:
>
>
>
> > Is there any case where Squid is used by a company that is used
>
> > by more than 30,000 users?
>
>
>
> Yes, some Squid (hierarchies) probably serve millions of users. I know
>
> several companies using Squids for serving large user populations, but I
>
> cannot name customer names.
>
>
>
>
>
> > What are the important point when using the
>
> > "wokers" setting for multiple processes?
>
>
>
> For a few starting points, please see
>
>
>
> *
>
>
> https://wiki.squid-cache.org/Features/SmpScale#How_to_configure_SMP_Squid_for_top_performance.3F
>
>
>
> * the recently added "worker-queues" configuration option:
>
>   https://github.com/squid-cache/squid/pull/369
>
>
>
>
>
> HTH,
>
>
>
> Alex.
>
>
>
>
>
> > 2020年10月2日(金) 11:15 m k:
>
> >
>
> >     Hello,
>
> >
>
> >     I'm planning a proxy renewal for a company with 45k clients.
>
> >     I'm looking at the performance of a single Squid to determine the
>
> >     number of Squids.
>
> >
>
> >     Environment: Virtual (OpenStack)
>
> >     OS: CentOS8.1
>
> >     CPU: 4 cores
>
> >     MEM: 8GB
>
> >     DISK: SATA30GB / 100GB
>
> >     Squid 4.4
>
> >      SSL Bump
>
> >      Blacklist: 1,700k
>
> >      auth: NTLM
>
> >      cache: 4GB
>
> >
>
> >     In an environment with authentication disabled and SSL decoding
> enabled
>
> >     A load test was performed with Jmeter.
>
> >
>
> >     Result: CPU high load (100rps-1000rps: CPU Usage 80-90%)
>
> >     (Confirm with top command)
>
> >
>
> >     Added multi-core support settings to squid.conf
>
> >     "workers 4"
>
> >
>
> >     A load test with Jmeter was performed again.
>
> >
>
> >     Result: CPU load is distributed to 4 cores (CPU Usage 20-40%)
>
> >     (Confirm with top command)
>
> >
>
> >     Question
>
> >     1. 1. How much will CPU Usage increase if NTLM authentication is
>
> >     enabled?
>
> >     2. 2. Are there any concerns other than CPU Usage in Squid?
>
> >     3. 3. When I enabled the cache in this test, the CPU Usage
>
> >     decreased, but in general, does the Squid cache increase the CPU
> Usage?
>
> >
>
> >     Thank you,
>
> >     Kitamura
>
> >
>
> >
>
> > _______________________________________________
>
> > squid-users mailing list
>
> > squid-users at lists.squid-cache.org
>
> > http://lists.squid-cache.org/listinfo/squid-users
>
> >
>
>
>
>
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