Hi
Well, the performance and NTLM issues that I had with persistent
connections goes back to squid 3.5 😳, so I never re-enabled it
again on new version, I'm using Squid 5.9 and 6.8 now.
If you tell me that now that persistent connections are more stable
and inclusive is recommended to be enabled by default to gain
performance and also speed up NTLM/Kerberos authentication, I will
re-enable again on my production servers.
Best Regards
On 16/05/2024 21:34, Alex Rousskov
wrote:
On
17/05/24 02:23, Bolinhas André wrote:
Has I explain, by
default I set those directives to off to avoid high cpu
consumption.
Just FYI: In this context, when you say "default", folks will tend
to think that you are talking about default Squid configuration
setting (i.e. something hard-coded in Squid code) rather than the
actual thing you are talking about (i.e. your custom Squid
configuration).
I do not know whether disabling persistent connections reduces CPU
consumption in your environment. There are too many variables. In
most cases, including NTLM authentication cases detailed by Amos,
disabling persistent connections hurts performance, but there are
always exceptions (and bugs).
It is not clear (to me) whether you disable persistent connections
because they hurt performance in your environment OR you disable
persistent connections because _you assume_ (without evidence) that
they hurt performance in your environment.
If you do not know that disabling persistent connections reduces
CPU consumption in your environment, then you should not disable
them until you discover strong evidence that they hurt
performance. At that point, you can share that evidence and ask
for configuration advice based on that evidence.
HTH,
Alex.
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