On Thu, Mar 9, 2017 at 7:06 AM, Tsunakawa, Takayuki
<tsunakawa.ta...@jp.fujitsu.com> wrote:
> From: pgsql-hackers-ow...@postgresql.org
>> [mailto:pgsql-hackers-ow...@postgresql.org] On Behalf Of Ashutosh Sharma
>> To start with, I ran the regression test-suite and didn't find any failures.
>> But, then I am not sure if huge_pages are getting used or not. However,
>> upon checking the settings for huge_pages and I found it as 'on'. I am
>> assuming, if huge pages is not being used due to shortage of large pages,
>> it should have fallen back to non-huge pages.
> You are right, the server falls back to non-huge pages when the large pages 
> run short.

The latest patch looks good to me apart from one Debug message, so I
have marked it as Ready For Committer.

+ ereport(DEBUG1,
+ (errmsg("disabling huge pages")));

I think this should be similar to what we display in sysv_shmem.c as below:

elog(DEBUG1, "mmap(%zu) with MAP_HUGETLB failed, huge pages disabled: %m",

With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

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