pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Merlin Moncure <merlin.moncure@rcsonline.com>
Cc: pgsql-performance@postgresql.org, "Kari Lavikka" <tuner@bdb.fi>
Subject: Re: Finding bottleneck
Date: Mon, 08 Aug 2005 11:37:19 -0400
Message-ID: <28801.1123515439@sss.pgh.pa.us> (raw)
In-Reply-To: <6EE64EF3AB31D5448D0007DD34EEB3417DD026@Herge.rcsinc.local>
References: <6EE64EF3AB31D5448D0007DD34EEB3417DD026@Herge.rcsinc.local>

"Merlin Moncure" <merlin.moncure@rcsonline.com> writes:
>> Kari Lavikka <tuner@bdb.fi> writes:
>>> samples  %        symbol name
>>> 13513390 16.0074  AtEOXact_CatCache
>> 
>> That seems quite odd --- I'm not used to seeing that function at the top
>> of a profile.  What is the workload being profiled, exactly?

> He is running a commit_delay of 80000.  Could that be playing a role?

It wouldn't cause AtEOXact_CatCache to suddenly get expensive.  (I have
little or no faith in the value of nonzero commit_delay, though.)

			regards, tom lane



view thread (22+ messages)  latest in thread

Message-ID: <28801.1123515439@sss.pgh.pa.us>
Permalink:  ../28801.1123515439@sss.pgh.pa.us/
Also on:    postgresql.org/message-id/28801.1123515439@sss.pgh.pa.us

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: tgl@sss.pgh.pa.us, merlin.moncure@rcsonline.com, tuner@bdb.fi
  Subject: Re: Finding bottleneck
  In-Reply-To: <28801.1123515439@sss.pgh.pa.us>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox