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From: Heikki Linnakangas <hlinnakangas@vmware.com>
To: Ryan Johnson <ryan.johnson@cs.utoronto.ca>
Cc: pgsql-performance@postgresql.org
Subject: Re: SSI slows down over time
Date: Sun, 06 Apr 2014 11:30:46 +0300
Message-ID: <534110B6.8020509@vmware.com> (raw)
In-Reply-To: <5340BB09.5010101@cs.utoronto.ca>
References: <5340BB09.5010101@cs.utoronto.ca>
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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


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