Message-ID: <534BDB96.9020507@cs.utoronto.ca>
Date: Mon, 14 Apr 2014 08:59:02 -0400
From: Ryan Johnson <ryan.johnson@cs.utoronto.ca>
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To: pgsql-performance@postgresql.org
Subject: Re: SSI slows down over time
References: <5340BB09.5010101@cs.utoronto.ca>
 <5342B87C.9090908@cs.utoronto.ca> <20140409212105.GF8686@momjian.us>
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On 09/04/2014 5:21 PM, Bruce Momjian wrote:
> On Mon, Apr  7, 2014 at 10:38:52AM -0400, Ryan Johnson wrote:
>> The two * entries were produced by runs under SI, and confirm that
>> the rest of the system has not been slowing down nearly as much as
>> SSI. SI throughput dropped by 5% as the database quadrupled in size.
>> SSI throughput dropped by 23% during the same interval. And this was
>> actually one of the better sets of runs; I had a few last week that
>> dipped below 1ktps.
>>
>> I'm not sure what to make of this, thoughts?
> Seems it is time to ask on hackers.
Ack.


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