| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Scott Carey <scott(at)richrelevance(dot)com>, Craig Ringer <craig(at)postnewspapers(dot)com(dot)au>, Peter Schuller <peter(dot)schuller(at)infidyne(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Identifying the nature of blocking I/O |
| Date: | 2008-08-25 02:16:09 |
| Message-ID: | 20080825021609.GF4506@alvh.no-ip.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
Tom Lane wrote:
> "Scott Carey" <scott(at)richrelevance(dot)com> writes:
> > DTrace is available now on MacOSX, Solaris 10, OpenSolaris, and FreeBSD.
> > Linux however is still in the dark ages when it comes to system monitoring,
> > especially with I/O.
>
> Oh, after poking around a bit, I should note that some of my Red Hat
> compatriots think that "systemtap" is the long-term Linux answer here.
> I know zip about it myself, but it's something to read up on if you are
> looking for better performance monitoring on Linux.
FWIW there are a number of tracing options on Linux, none of which is
said to be yet at the level of DTrace. See here for an article on the
topic: http://lwn.net/Articles/291091/
--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.
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