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Bug#591286: libapr1: upgrade breaks apache

On Sun, Aug  1, 2010 at 22:49:00 +0200 (+0200), Stefan Fritsch wrote:

My sincere apologies for the delay in replying - I thought I had but I
see now that I didn't. 

A great bit of work there tracking down the problem and workarounds :-)

> Out of interest: Have you noticed any performance difference with 
> sslmutex sem instead of the default 'file'? The description of the 
> types on http://httpd.apache.org/docs/2.2/misc/perf-tuning.html says 
> that the semaphore mutex types are somewhat less robust.

I've not noticed any problems (nor measured any performance increases,
if any).  The posixsem type doesn't seem _too_ bad, the sysvmem one
certainly does.  Possibly a little experiment if I find myself bored
one weekend :-)


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