Re: SSI slows down over time

From: Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>
To: Ryan Johnson <ryan(dot)johnson(at)cs(dot)utoronto(dot)ca>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: SSI slows down over time
Date: 2014-04-06 08:30:46
Message-ID: 534110B6.8020509@vmware.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance

On 04/06/2014 05:25 AM, Ryan Johnson wrote:
> I've tried linux perf, but all it says is that lots of time is going to
> LWLock (but callgraph tracing doesn't work in my not-bleeding-edge
> kernel).

Make sure you compile with the "-fno-omit-frame-pointer" flag.
- Heikki

In response to

Responses

Browse pgsql-performance by date

  From Date Subject
Next Message Tom Lane 2014-04-06 14:55:37 Re: SSI slows down over time
Previous Message Ryan Johnson 2014-04-06 02:25:13 SSI slows down over time