[PATCH] Optimize wait_sb_inodes()

OGAWA Hirofumi hirofumi at mail.parknet.co.jp
Thu Jun 27 17:30:17 PDT 2013

Theodore Ts'o <tytso at mit.edu> writes:

> On Fri, Jun 28, 2013 at 08:37:40AM +0900, OGAWA Hirofumi wrote:
>> Well, anyway, it is simple. This issue was came as the performance
>> regression when I was experimenting to use kernel bdi flusher from own
>> flusher. The issue was sync(2) like I said.  And this was just I
>> couldn't solve this issue by tux3 side unlike other optimizations.
> A performance regression using fsstress?  That's not a program
> intended to be a useful benchmark for measuring performance.

Right. fsstress is used as stress tool for me too as part of CI, with
background vmstat 1. Anyway, it is why I noticed this.

I agree it would not be high priority. But I don't think we should stop
to optimize it.

OGAWA Hirofumi <hirofumi at mail.parknet.co.jp>

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