[ale] Apache Performance..

[jj at spiderentertainment.com]

I'v been trying to tweak apache for months now.
My max clients are at 1500
Start servers are at 300
MaxSpare is at 50
MinSpare is at 5
Keep Alive is on at 20.

If you increase the MaxSpare, your cpu and disk usage will dramaticlly go
up. Same goes for MinSpare
If apache needs to spawn more severs it does it by seconds. Let's say apache
needs 60 servers
1 st second, it spawns 2
2 nd second, it spawns 4
3 rd second, it spaws 8
4 th second, it spawns 16
5 th second, it spawns 32 etc...

I have consulted some "good" folks who know apache, but they could not
optimize my apache.

If you have 50 servers on avearge keep your MaxSpare at 20, if you have 300,
I keep it at 50.


Russell Enderby wrote:

> In the past I have looked at software like webstats to see where web
> usage ends up.  Recently I have been putting the server into overdrive
> and was wondering if there is a utility that will show how busy the web
> server is.  Something that would relate hits per second to max hits per
> second given the maxservers and maxclients.
>
> Currently I am using maxserver, and minserver as a gauge to how busy it
> is.  I believe the default for 1.3.x is 20 and 8 respectively.  I
> noticed the box was running 20 servers so I figured it may be reaching
> capacity.  I increased the servers to 40 and moved MaxClients from 150
> to 256.
>
> I checked out the Apache Performance documentation and it talks about
> setting those values to 'a good comfortable value, not too high not too
> low'.  This seems quite vague.  Does anyone know how many child
> processes a server can spawn and how that relates to the MaxServers and
> MaxClients?
>
> Thanks much,
> Russell
>
> --
> Russell T. Enderby                                        Arris
> Interactive
> Software Engineer                                         3871 Lakefield
> Dr, Suite 300
> Cornerstone Software Development Group   Suwanee, GA 30024-1242
> Email: Russell.Enderby at arris-i.com