sendfile hosing apache?

Peter Avalos pavalos at
Tue Apr 5 16:10:15 PDT 2005

On Tue, Apr 05, 2005 at 03:34:26PM -0700, Matthew Dillon wrote:
> :
> :
> :--mYYhpFXgKVw71fwr
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> :I wrote about this back in November, but enabling sendfile in apache
> :seems to make it use more and more cpu as the server runs.  Right now
> :I've been running the server for about an hour, and I have a load of
> :about 20.  If I disable sendfile in apache, it seems to work fine.  If
> :I run ps, it says those processes are in a 'RL' state.  Is it normal
> :for sendfile to use this much cpu?
> :
> :Of course I'm willing to provide an info required to figure this out.
> :
> :Thanks,
> :Peter
>     It sure isn't.  Do a ktrace -p <pid> of one of the apache's while it
>     is in that state, for a few seconds (terminate it with ktrace -C).
> 					-Matt
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