Re: [BENCHMARK] 2.5.70-mm2 with contest

From: Andrew Morton (
Date: Mon Jun 02 2003 - 19:54:10 EST

Nick Piggin <> wrote:
> It will be interesting to see what happens if we set the
> ext3 journal write paths as PF_SYNCWRITE. I'll try some tests
> a bit later today.


Longer-term it would be best to lose the PF_SYNCWRITE thing and to just
mark the BIOs as synchronous prior to submitting them. It's a matter of
transferring the info in writeback_control.sync_mode at the pagecache/BIO
boundary: mpage_bio_submit(), __block_write_full_page->submit_bh(), etc.

But we can worry about that later, once it is established that the
synchronous write detection is sufficiently useful.

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