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Re: [PATCH] dtrace probes for memory manager

Alvaro Herrera <alvherre@commandprompt.com>

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From: Alvaro Herrera <alvherre@commandprompt.com>
To: Bernd Helmle <mailings@oopsware.de>
Cc: Robert Haas <robertmhaas@gmail.com>, Zdenek Kotala <Zdenek.Kotala@sun.com>, Greg Smith <greg@2ndquadrant.com>, pgsql-hackers@postgresql.org
Date: 2009-12-11T14:28:54Z
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.