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Re: [PATCH 2/3] mm/page_isolation: add new tracepoint, test_pages_isolated

From Andrew Morton <akpm@linux-foundation.org>
Newsgroups linux.kernel
Subject Re: [PATCH 2/3] mm/page_isolation: add new tracepoint, test_pages_isolated
Date 2015-11-20 00:40 +0100
Message-ID <qwGY1-7GJ-13@gated-at.bofh.it> (permalink)
References <quchH-nf-7@gated-at.bofh.it> <quchH-nf-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, 13 Nov 2015 11:23:47 +0900 Joonsoo Kim <js1304@gmail.com> wrote:

> cma allocation should be guranteeded to succeed, but, sometimes,
> it could be failed in current implementation. To track down
> the problem, we need to know which page is problematic and
> this new tracepoint will report it.

akpm3:/usr/src/25> size mm/page_isolation.o
   text    data     bss     dec     hex filename
   2972     112    1096    4180    1054 mm/page_isolation.o-before
   4608     570    1840    7018    1b6a mm/page_isolation.o-after

This seems an excessive amount of bloat for one little tracepoint.  Is
this expected and normal (and acceptable)?


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Re: [PATCH 2/3] mm/page_isolation: add new tracepoint,  test_pages_isolated Andrew Morton <akpm@linux-foundation.org> - 2015-11-20 00:40 +0100
  Re: [PATCH 2/3] mm/page_isolation: add new tracepoint,  test_pages_isolated Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2015-11-20 07:30 +0100

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