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@xxxxxxxxxxxxxxxxxxxxxxx>:
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
>
>
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