| From: |
| Artem Bityutskiy <Artem.Bityutskiy@nokia.com> |
| To: |
| Al Viro <viro@ZenIV.linux.org.uk>,
Jens Axboe <jens.axboe@oracle.com> |
| Subject: |
| [PATCH v3 00/18] periodic write-back timer optimization |
| Date: |
| Thu, 09 Jul 2009 11:48:22 +0300 |
| Message-ID: |
| <20090709084822.12122.79749.sendpatchset@localhost.localdomain> |
| Cc: |
| linux-fsdevel@vger.kernel.org,
Artem Bityutskiy <Artem.Bityutskiy@nokia.com>,
linux-kernel@vger.kernel.org |
| Archive‑link: | |
Article |
Hi Al, Jens,
this is the third or fourth attempt. Al, would you please take a look
at this? Would it be possible to get your ack and then merge this
via Jens' tree?
The patches attempt to optimize the periodic write-back and stop it when
there are no dirty data. IOW, we do not want the thread to wake up every
5 seconds (by default), find there is nothing to do, and so on. We want
to save power instead.
The patches are against Jens Axboe's per-bdi write-back tree. Namely,
against:
git://git.kernel.dk/linux-2.6-block.git writeback-v12
Patches 01-16 introduce 2 VFS helpers and wrap all 'sb->s_dirt'
manipulations.
Patch 17 re-names s_dirt to s_dirty in order to make sure we catch
all direct s_dirt accesses.
Patch 18 optimizes the periodic 'sync_supers' thread. This used
to be 'pdflush', but Jens re-worked this area and now it is called
'sync_supers'. By the way, with Jens' changes the former kupdated stuff
stuff looks a lot cleaner and it is easier to work on top of that.
--
Best Regards,
Artem Bityutskiy (ÐÑÑÑм ÐиÑÑÑкий)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
