[PVFS-users] version 1.6.2 slower than 1.60?

[Rob Ross]

Hi Jeremy,

If you have time, could you try 1.6.1?  We've talked with some other 
users, and we haven't heard any other reports of this...

Rob

On Tue, 13 Jan 2004, Jeremy Enos wrote:

> Nothing else changed on the system.  I've put 1.6.0 back on again and 
> verified an improvement.  I use the same configure options for each 
> one.  Snipped from my spec file:
> 
> %install
> # Make and install PVFS
> cd $RPM_BUILD_DIR/%{name}-%{version}
> ./configure --prefix=%{buildroot}/%{prefix} --enable-lfs
> 
> # Make and install PVFS kernel module
> ./configure --prefix=%{buildroot}/%{prefix} \
>    --with-pvfs=%{buildroot}/%{prefix} \
>    --with-moddir=%{buildroot}/lib/modules/%{kernel}/kernel/fs/pvfs \
>    --with-kernel-headers=%{kernel_source}/include \
>    --with-newstyle \
>    --sbindir=%{buildroot}/%{prefix}/sbin \
> 
> Let me know if you need anything else.  Thx-
> 
>          Jeremy
> 
> At 12:02 PM 1/13/2004, Rob Ross wrote:
> >Hi Jeremy,
> >
> >What else changed in the system?  What configure options did you use?
> >Have you since re-run the 1.6.0 numbers and get the same thing?
> >
> >Thanks for the report,
> >
> >Rob
> >
> >On Tue, 13 Jan 2004, Jeremy Enos wrote:
> >
> > > Hi folks-
> > > I did crude benchmark comparisons using dd to write to a filesystem 
> > mounted
> > > via the pvfsd kernel module.  I had just moved from version 1.6.0 to 
> > 1.6.2,
> > > and the performance dropped over 90%.  Could I be doing something wrong?
> > > Stat of test:
> > > # of iod: 16
> > > # of clients: 64
> > > block size: 65536
> > > count: 2000
> > >
> > > I did concurrent writes/reads and timed from start to finish, and then
> > > calculate an aggregate dtr.  I know it's a crude test, but it's a
> > > repeatable difference between 1.6.0 and 1.6.2.
> > > Let me know if you have any suggestions.
> > >
> > >       Jeremy
> >
> >_______________________________________________
> >PVFS-users mailing list
> >PVFS-users@www.beowulf-underground.org
> >http://beowulf-underground.org/mailman/listinfo/pvfs-users
> 
>