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SubjectRe: [PATCH][5/?] count writeback pages in nr_scanned
Andrea Arcangeli <andrea@suse.de> wrote:
>
> But I dislike code that works by luck,

yup, it is code which works by luck. And it's a bit inaccurate - there is
potential for (small) further latency improvement in there.

But we do need to watch the CPU consumption in there - end_page_writeback()
already figures fairly high sometimes.

> and sure I could demonstrate it
> if I bothered to write an artificial testcase on simulated hardware.

Could well be so.
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