| From: | "657985552(at)qq(dot)com" <657985552(at)qq(dot)com> |
|---|---|
| To: | "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | "Kevin Grittner" <kgrittn(at)gmail(dot)com>, "Merlin Moncure" <mmoncure(at)gmail(dot)com>, "Bill Moran" <wmoran(at)potentialtech(dot)com>, pgsql-general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: ??: postgres cpu 100% need help |
| Date: | 2015-11-25 03:57:49 |
| Message-ID: | 2015112511574850020322@qq.com |
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| Thread: | |
| Lists: | pgsql-general |
oh .thanks i understand . but i still have a question .
[root(at)pg1 pgdata]# uname -a
Linux pg1 3.10.0-123.9.3.el7.x86_64 #1 SMP Thu Nov 6 15:06:03 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
[root(at)pg1 pgdata]# cat /etc/redhat-release
CentOS Linux release 7.0.1406 (Core)
my os is centos7 . is there THP problem in it ?
657985552(at)qq(dot)com
From: Tom Lane
Date: 2015-11-25 10:21
To: 657985552(at)qq(dot)com
CC: Kevin Grittner; Merlin Moncure; Bill Moran; pgsql-general
Subject: Re: [GENERAL] ??: postgres cpu 100% need help
"657985552(at)qq(dot)com" <657985552(at)qq(dot)com> writes:
> thanks for you help . but the following config Indicate my OS THP is Disable
> [root(at)pg1 ~]# grep -i HugePages_Total /proc/meminfo
> HugePages_Total: 0
> [root(at)pg1 ~]# cat /proc/sys/vm/nr_hugepages
> 0
Those values reflect whether *explicit* huge pages are enabled. They do
not control *transparent* huge pages.
Red Hat's version of all this is documented here:
https://access.redhat.com/solutions/46111
regards, tom lane
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