[RESEND,v2,0/3] nfs: Improve throughput for random buffered writes

Message

Jan Kara July 1, 2024, 10:50 a.m. UTC

[Resending because of messed up mailing list address]

Hello,

this is second revision of my patch series improving NFS throughput for
buffered writes.

Changes since v1:
* Added Reviewed-by tags
* Made sleep waiting for congestion to resolve killable

Original cover letter below:

I was thinking how to best address the performance regression coming from
NFS write congestion. After considering various options and concerns raised
in the previous discussion, I've got an idea for a simple option that could
help to keep the server more busy - just mimick what block devices do and
block the flush worker waiting for congestion to resolve instead of aborting
the writeback. And it actually helps enough that I don't think more complex
solutions are warranted at this point.

This patch series has two preparatory cleanups and then a patch implementing
this idea.

								Honza

Previous versions:
Link: http://lore.kernel.org/r/[e-mail] # v1