| From: | Shaun Thomas <sthomas(at)optionshouse(dot)com> |
|---|---|
| To: | AJ Weber <aweber(at)comcast(dot)net> |
| Cc: | <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: Two Necessary Kernel Tweaks for Linux Systems |
| Date: | 2013-01-08 21:48:38 |
| Message-ID: | 50EC9436.7050700@optionshouse.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
On 01/08/2013 02:05 PM, AJ Weber wrote:
> Is there an "easy" way to tell what scheduler my OS is using?
Unfortunately not. I looked again, and it seems that CFS was merged into
2.6.23. Anything before that is probably safe, but the vendor may have
backported it. If you don't see the settings I described, you probably
don't have it.
So I guess Midge had 2.6.18, which predates the merge in 2.6.23.
I honestly don't understand the Linux kernel sometimes. A process
scheduler swap is a *gigantic* functional change, and it's in a dot
release. I vastly prefer PostgreSQL's approach...
--
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604
312-444-8534
sthomas(at)optionshouse(dot)com
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