[PVFS2-developers] runaway aio thread

[Rob Ross]

Sounds like we should just FAQ this (upgrade your EL3) and be done with 
it.

Rob

On Wed, 7 Jul 2004, Nathan Poznick wrote:

> Thus spake Pete Wyckoff:
> > Not that I know.  My work around makes me happy (except at configure cvs
> > update time).  One other concerned user contacted me directly about the
> > same thing last week.  Perhaps it doesn't happen on anything other than
> > RHEL3 in which case I'm not motivated to figure out the problem, just to
> > hack around it in the configure if detected, if some other developer
> > runs into this issue too and can corroborate.
> 
> Just a note, I set up a single-node PVFS2 volume on a machine running
> RHEL3 with update 2, and I don't see this behavior.  When I did a
> pvfs2-cp of a file into the volume, the leaders in CPU usage were
> pvfs2-cp, pvfs2-server, but keventd (I guess that's what handles the aio
> calls into the kernel) was leading the pack (~25%).  It only took 11
> seconds to copy the ~500mb file in, and once that was done the CPU usage
> of everything involved dropped back to zero.
> 
> kernel-smp-2.4.21-15.EL
> glibc-2.3.2-95.20
> 
> -- 
> Nathan Poznick <poznick at conwaycorp.net>
> 
> Broad-minded is just another way of saying a fellow's too lazy to form
> an opinion. - Will Rogers
> 
>