| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Robert Lor <Robert(dot)Lor(at)Sun(dot)COM> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Robert Treat <xzilla(at)users(dot)sourceforge(dot)net>, jesus(at)omniti(dot)com |
| Subject: | Re: Review: DTrace probes (merged version) ver_03 |
| Date: | 2008-07-31 21:08:41 |
| Message-ID: | 20080731210841.GN8497@alvh.no-ip.org |
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| Lists: | pgsql-hackers |
Robert Lor wrote:
> Tom Lane wrote:
>> * The probes that pass buffer tag elements are already broken by the
>> pending "relation forks" patch: there is soon going to be another field
>> in buffer tags. Perhaps it'd be feasible to pass the buffer tag as a
>> single probe argument to make that a bit more future-proof? I'm not
>> sure if that would complicate the use of the probe so much as to be
>> counterproductive.
>
> Took out the buffer tag argument for now. Will figure out how to best
> solve this after this relation forks patch is committed.
I was checking the DTrace docs for other reasons and I came across this,
which maybe can be useful here:
http://docs.sun.com/app/docs/doc/817-6223/chp-xlate?a=view
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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