Memory Usage is high??!!!

[Wilson_Lee]

Hi

I have setup Zimbra 64 bits on my server which is Quad Core Processor 2.13Ghz and 4GB memory.

After setup, I run "top" and i notice more than 3.5 GB memory is used.

I so surprise that Zimbra takes a lot of memory.

May I know what happen to my Zimbra server?
Do I need to do any tuning for it?
what is the standard memory usage for Zimbra Server ?

(Note: After setup, I only create a mailbox for testing purpose. I'm not yet put this server into production yet.)

[Baylink]

Top (and free) both always show almost all memory in use on Linux systems; check the 'Cached' number. If it's most of the memory in 'use', you're fine.

Worry when it starts swapping.

[sergioag]

Hi

I preffer to run a cat /proc/meminfo. You have to worry when SwapFree is substantially less than SwapTotal. That's when you're really using all your memory.

Best regards,

Sergio Aguayo

[Baylink]

Yup; that's where free(1) gets it's data, I'm pretty sure.

[dwmtractor]

But in any case, Baylink is right, Zimbra appears to suck up a lot of memory depending on which tool you are using, and for that matter it requires at least 2GB to function well at all. Nevertheless as Baylink said, until/unless you see a lot of swap usage, you have nothing to worry about.