[Swift-devel] IO overheads of swift wrapper scripts on BlueGene/P

[Mihael Hategan]

On Sat, 2009-10-17 at 21:57 -0500, Allan Espinosa wrote:
> Progress  2009-10-17 21:31:11.179664000-0500  COPYING_OUTPUTS
> Progress  2009-10-17 21:37:14.539569000-0500  RM_JOBDIR

Can you modify the wrapper to do an strace on the mv and the swift
script to also stage out the output of that?

I would expect that if the writing to gpfs is the problem, then writing
to the info file would also take a long time, which doesn't seem to be
the case:

Progress  2009-10-17 20:54:15.498666000-0500  LINK_INPUTS
Progress  2009-10-17 20:54:19.900786000-0500  EXECUTE

Mihael