Odd performance problem (hitching)

Don Lewis truckman at FreeBSD.org
Thu Sep 8 00:50:06 PDT 2005


On  8 Sep, Steven Hartland wrote:
> There was a vfs patch a while back which fixed an FS based
> hitching problem for us here but would have thought that
> would be in current by now.
> Patch was for usr/src/sys/kern/vfs_bio.c
> it added a "while (flushed != target) {" loop.

<http://www.chesapeake.net/~jroberson/flushbuf.diff>?

Looks like it was committed to vfs_bio.c 1.487 on June 8th, which was
before the RELENG_6 branch.



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