[CalendarServer-dev] [SOLVED] Re: master process loops

Glyph glyph at twistedmatrix.com
Mon Mar 18 00:04:34 PDT 2013


On Mar 17, 2013, at 11:44 AM, Axel Rau <Axel.Rau at Chaos1.DE> wrote:

> 
> Am 15.03.2013 um 13:04 schrieb Axel Rau:
> 
>> While testing my new FreeBSD port on FreeBSD 8.2, I see the master process starting stealing cpu cycles after 1st client connect, so:
>> PID JID USERNAME  THR PRI NICE   SIZE    RES STATE   C   TIME   WCPU COMMAND
>> 39240  11 root        3  76    0   126M 49784K uwait   6   1:38 17.77% python2.7
>> 
>> This continues after the last client has disconnected until shutdown of the server.
>> 
> Profiling with Run Snake Run (thanks to Andre for the excellent how to) shows:
> The master process spent 98% in _psutil_bsd.get_virtual_mem(). Seems to be an expensive function in FreeBSD.
> Turning off the call in accesslog resolves the problem. 

Thanks very much for tracking this down.  Would you consider submitting a patch to our Trac instance?

Thanks,

-glyph




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