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From: npiggin@suse.de
To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [patch 00/27] [rfc] vfs scalability patchset
Date: Sat, 25 Apr 2009 11:20:20 +1000	[thread overview]
Message-ID: <20090425012020.457460929@suse.de> (raw)

Here is my current patchset for improving vfs locking scalability. Since
last posting, I have fixed several bugs, solved several more problems, and
done an initial sweep of filesystems (autofs4 is probably the trickiest,
and unfortunately I don't have a good test setup here for that yet, but
at least I've looked through it).

Also started to tackle files_lock, vfsmount_lock, and inode_lock.
(I included my mnt_want_write patches before the vfsmount_lock scalability
stuff because that just made it a bit easier...). These appear to be the
problematic global locks in the vfs.

It's running stably here so far on basic stress testing here on several file
systems (xfs, tmpfs, ext?). But it still might eat your data of course.

Would be very interested in any feedback.

Thanks,
Nick



             reply	other threads:[~2009-04-25  1:28 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-25  1:20 npiggin [this message]
2009-04-25  1:20 ` [patch 01/27] fs: cleanup files_lock npiggin
2009-04-25  3:20   ` Al Viro
2009-04-25  5:35   ` Eric W. Biederman
2009-04-26  6:12     ` Nick Piggin
2009-04-25  9:42   ` Alan Cox
2009-04-26  6:15     ` Nick Piggin
2009-04-25  1:20 ` [patch 02/27] fs: scale files_lock npiggin
2009-04-25  3:32   ` Al Viro
2009-04-25  1:20 ` [patch 03/27] fs: mnt_want_write speedup npiggin
2009-04-25  1:20 ` [patch 04/27] fs: introduce mnt_clone_write npiggin
2009-04-25  3:35   ` Al Viro
2009-04-25  1:20 ` [patch 05/27] fs: brlock vfsmount_lock npiggin
2009-04-25  3:50   ` Al Viro
2009-04-26  6:36     ` Nick Piggin
2009-04-25  1:20 ` [patch 06/27] fs: dcache fix LRU ordering npiggin
2009-04-25  1:20 ` [patch 07/27] fs: dcache scale hash npiggin
2009-04-25  1:20 ` [patch 08/27] fs: dcache scale lru npiggin
2009-04-25  1:20 ` [patch 09/27] fs: dcache scale nr_dentry npiggin
2009-04-25  1:20 ` [patch 10/27] fs: dcache scale dentry refcount npiggin
2009-04-25  1:20 ` [patch 11/27] fs: dcache scale d_unhashed npiggin
2009-04-25  1:20 ` [patch 12/27] fs: dcache scale subdirs npiggin
2009-04-25  1:20 ` [patch 13/27] fs: scale inode alias list npiggin
2009-04-25  1:20 ` [patch 14/27] fs: use RCU / seqlock logic for reverse and multi-step operaitons npiggin
2009-04-25  1:20 ` [patch 15/27] fs: dcache remove dcache_lock npiggin
2009-04-25  1:20 ` [patch 16/27] fs: dcache reduce dput locking npiggin
2009-04-25  1:20 ` [patch 17/27] fs: dcache per-bucket dcache hash locking npiggin
2009-04-25  1:20 ` [patch 18/27] fs: dcache reduce dcache_inode_lock npiggin
2009-04-25  1:20 ` [patch 19/27] fs: dcache per-inode inode alias locking npiggin
2009-04-25  1:20 ` [patch 20/27] fs: icache lock s_inodes list npiggin
2009-04-25  1:20 ` [patch 21/27] fs: icache lock inode hash npiggin
2009-04-25  1:20 ` [patch 22/27] fs: icache lock i_state npiggin
2009-04-25  1:20 ` [patch 23/27] fs: icache lock i_count npiggin
2009-04-25  1:20 ` [patch 24/27] fs: icache atomic inodes_stat npiggin
2009-04-25  1:20 ` [patch 25/27] fs: icache lock lru/writeback lists npiggin
2009-04-25  1:20 ` [patch 26/27] fs: icache protect inode state npiggin
2009-04-25  1:20 ` [patch 27/27] fs: icache remove inode_lock npiggin
2009-04-25  4:18 ` [patch 00/27] [rfc] vfs scalability patchset Al Viro
2009-04-25  5:02   ` Nick Piggin
2009-04-25  8:01   ` Christoph Hellwig
2009-04-25  8:06     ` Al Viro
2009-04-28  9:09       ` Christoph Hellwig
2009-04-28  9:48         ` Nick Piggin
2009-04-28 10:58         ` Peter Zijlstra
2009-04-28 11:32         ` Eric W. Biederman
2009-04-30  6:14           ` Nick Piggin
2009-04-25 19:08     ` Eric W. Biederman
2009-04-25 19:31       ` Al Viro
2009-04-25 20:29         ` Eric W. Biederman
2009-04-25 22:05           ` Theodore Tso

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