Messages in this thread | | | From | Artem Bityutskiy <> | Date | Thu, 09 Jul 2009 11:48:22 +0300 | Subject | [PATCH v3 00/18] periodic write-back timer optimization |
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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/
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