[peruser] Patch for busy servers

Andrew andyukguy at gmail.com
Tue Jan 4 08:17:22 MST 2011


Marcelo,

Many thanks for your patches, they are appreciated. We will be testing this patch in the coming months.

Andrew

On 4 Jan 2011, at 15:12, Marcelo Coelho wrote:

> Hi,
> 
> I've made a few changes, so here is another update (v4). Probably the last, for while. :-)
> 
> Changes (from RC2):
> 
> * (v4) Code cleanup
> * (v4) Performance: childs are started in ~25ms, 40 times faster than in RC2 (~1000ms)
> * (v4) Bug fixed: now checking if total_processors is 1 (first access) to start StartProcessors
> * (v3) Performance: new child type (CHILD_TYPE_RESERVED) to avoid collision (2 childs trying to get the same free slot)
> * (v3) Bug fixed: fixed a bug in RC2, wait_timeout was always 0, never sleeping to wait for new workers.
> * (v2) Performance: StartProcessors, new configuration directive to control the number of child processors per vhost at startup
> * (v2) Performance: childs are started in ~50ms, 20 times faster than in RC2 (~1000ms)
> * (v1) Performance: faster to lookup for free slots (this is important on busy servers, with many virtual hosts)
> * (v1) Performance: faster to count processors, one single loop counts all processors
> * (v1) Bug fixed: bug when MinSpareProcessors is set to 0 (now all workers processes are killed when idle_timeout is reached)
> * (v1) Bug fixed: Free-up slots when a WORKER or PROCESSOR unexpectedly dies
> 
> Download:
> 
> Patch from RC2:
> http://opensource.mco2.net/download/apache/peruser/peruser-rc2-to-rc3-v4.patch
> 
> Full patch from vanilla Apache 2.2.17:
> http://opensource.mco2.net/download/apache/peruser/peruser-rc3-full-v4.patch
> 
> 
> --
> Marcelo Coelho
> marcelo at mco2.com.br
> 
> _______________________________________________
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> Peruser at telana.com
> http://www.telana.com/mailman/listinfo/peruser



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