On Wed, Feb 22, 2006 at 03:22:35PM -0600, Avery Ching wrote:
> Sure. I'm actually have a single client just doing a small contiguous
> write of 50 bytes. But I think it occurs for pretty much any small I/O
> operation I do. It seems to happen with any amount of PVFS2 servers.
> Both the memory request and file request structures are contig I think.
> The total_completed isn't filled in during the write. I think it
> happens also during the read (althought I'm not quite sure on that).
> I'm using the HEAD CVS version, (just did an update this morning).
Avery,
can you send me your benchmark? One of our nightly tests is a
noncontiguous benchmark that writes small little 2k pieces out to a
file exercising {noncontig,contig} in {memory,file}, and that test has
been passing for a while now (since we fixed the immediate completion
for zero-length io case).
If you've found a bug, we'll have to beef up our noncontiguous and
small i/o test cases.
==rob
--
Rob Latham
Mathematics and Computer Science Division A215 0178 EA2D B059 8CDF
Argonne National Labs, IL USA B29D F333 664A 4280 315B
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