Re: [PATCH 00/19] periodic write-back timer optimization

From: Artem Bityutskiy
Date: Wed May 27 2009 - 08:38:29 EST

Jens Axboe wrote:
On Wed, May 27 2009, Artem Bityutskiy wrote:
ext Arnd Bergmann wrote:
On Wednesday 27 May 2009, Artem Bityutskiy wrote:

This is the second attempt. The first one was here:
It was very hacky and got no comments.
How does this relate to the per-BDI writeback patches that
Jens is working on? Doesn't that require a completely different
(probably simpler) implementation of your patch?
At a quick glance, our works do not intersect. He seems
to be changing the guts of write-back, while I only touch
the timer which wakes up the periodic write-back thread,
nothing else. I'll try to take Jens' patches and see.

There's definitely overlap! The timer is gone with my patches and so is
pdflush. For an idle (idle here meaning no background writeback
activity) system, there should just be bdi-default running. And that
will wake up every dirty_writeback_interval by default.

Hmm, right. Will be working on top of your patches then.

Best Regards,
Artem Bityutskiy (ÐÑÑÑÐ ÐÐÑÑÑÐÐÐ)
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