From: Jan Kara <jack@suse.cz>
To: hch@infradead.org
Cc: xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org
Subject: [PATCH 0/2] Improve writeout pattern from xfs_flush_pages()
Date: Wed, 3 Aug 2011 22:49:03 +0200 [thread overview]
Message-ID: <1312404545-15400-1-git-send-email-jack@suse.cz> (raw)
Hi,
at one of customer's machines, I've spotted an issue that sync(1) called
after writing a single huge file has been achieving rather low throughput. After
debugging this with blktrace, I've found that the culprit was in flusher thread
racing with page writeout happening from XFS sync code. The patches below helped
that case. Although they are not a complete solution, I belive they are useful
anyway so please consider merging them...
Honza
next reply other threads:[~2011-08-03 20:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-03 20:49 Jan Kara [this message]
2011-08-03 20:49 ` [PATCH 1/2] vfs: Create filemap_flush_range() Jan Kara
2011-08-03 20:49 ` [PATCH 2/2] xfs: Call filemap_flush_range() for async xfs_flush_pages() call Jan Kara
2011-08-03 22:03 ` Christoph Hellwig
2011-08-03 22:34 ` Vivek Goyal
2011-08-04 10:03 ` Jan Kara
2011-08-03 21:42 ` [PATCH 0/2] Improve writeout pattern from xfs_flush_pages() Christoph Hellwig
2011-08-04 10:36 ` Jan Kara
2011-08-04 10:42 ` Christoph Hellwig
2011-08-04 12:07 ` Jan Kara
2011-08-04 12:19 ` Christoph Hellwig
2011-08-04 12:37 ` Jan Kara
2011-08-04 12:41 ` Christoph Hellwig
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