| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Bernd Helmle <mailings(at)oopsware(dot)de> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Zdenek Kotala <Zdenek(dot)Kotala(at)sun(dot)com>, Greg Smith <greg(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [PATCH] dtrace probes for memory manager |
| Date: | 2009-12-11 14:28:54 |
| Message-ID: | 20091211142854.GB30833@alvh.no-ip.org |
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| Lists: | pgsql-hackers |
Bernd Helmle escribió:
> I repeated the pgbench runs per Greg's advice (see upthread) and it
> seems there is actually a small slowdown which supports this
> argument, unfortunately. After repeating the pgbench runs with and
> without the new probes (note: i've used the new version of the
> patch, too), the numbers are going to stabilize as follows:
>
> without compiled probes: AVG(2531.68)
> with compiled probes: AVG(2511.97)
Were the probes enabled?
--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.
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