| From: | Gurjeet Singh <gurjeet(at)singh(dot)im> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Peter Eisentraut <peter_e(at)gmx(dot)net>, PGSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: /proc/self/oom_adj is deprecated in newer Linux kernels |
| Date: | 2014-06-12 20:35:10 |
| Message-ID: | CABwTF4WKYb5XfT1QdeocjpEPeyWbS7ANYoH3LOb7hCodNEhAWQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Jun 10, 2014 at 12:05 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> If we're going to do this, I would say that we should also take the
> opportunity to get out from under the question of which kernel API
> we're dealing with. So perhaps a design like this:
>
> 1. If the environment variable PG_OOM_ADJUST_FILE is defined, it's
> the name of a file to write something into after forking. The typical
> value would be "/proc/self/oom_score_adj" or "/proc/self/oom_adj".
> If not set, nothing happens.
>
> 2. If the environment variable PG_OOM_ADJUST_VALUE is defined, that's
> the string we write, otherwise we write "0".
Please find attached the patch. It includes the doc changes as well.
Best regards,
--
Gurjeet Singh http://gurjeet.singh.im/
| Attachment | Content-Type | Size |
|---|---|---|
| oom_env.patch | text/x-diff | 4.2 KB |
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