[Eug-lug] Looking at the 'free' command

[Ben Barrett]

vmstat will show you that with more context too -- you might want to
set up some load tests, either web requests or samba xfers or
computational tasks or whatnot.  Push your machine to the edge of
its current workload and observe.  Setup your loads and log some vmstats
(-n) IIRC...

    Ben


On 12/22/06, Matthew Jarvis <mattj at bikefriday.com> wrote:
>
> Learning something new...
>
> I'm trying to determine if a web server has enough RAM for the load. I
> was advised to use the ''free -m' command and to pay special attention
> to the Swap value.
>
> Been watching it since last night and it Swap was at 96 then, 100 now.
>
> Here's the latest:
>
>
>               total       used       free     shared    buffers     cached
> Mem:          1511       1490         21          0        134       1039
> -/+ buffers/cache:        315       1195
> Swap:         1027        100        926
>
>
>
> We are looking at this to see about upgrading the server (a RAM upgrade
> requires a newer box since the current one is maxed out) so we're
> talking about some $$$ here, so I want to make the right call...
>
> Any advice on this?
>
>
> --
> Matthew S. Jarvis
> IT Manager
> Bike Friday - "Performance that Packs."
> www.bikefriday.com
> 541/687-0487 x140
> mattj at bikefriday.com
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>
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