From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
---|---|
To: | Greg Smith <greg(at)2ndquadrant(dot)com> |
Cc: | autoramajj(at)hotmail(dot)com, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: A sniffer for the buffer |
Date: | 2009-12-08 15:15:51 |
Message-ID: | 20091208151550.GB5057@alvh.no-ip.org |
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Thread: | |
Lists: | pgsql-hackers |
Greg Smith wrote:
> Jonas J wrote:
> >P.S.: I'm using PostgreSQL 8.1.4 to run with TPCC-UVA benchmarks tests...
> Ah. PostgreSQL 8.1 is significantly slower than the current
> versions, and you're not going to get as much help with issues
> related to the source code as if you're using a newer one. For
> example, I don't know the 8.1 buffer implementation code nearly as
> well because I didn't really start tinkering with it until 8.2, so
> some of the things you're asking about I don't have easy access or
> recollection of.
8.1 didn't have lock partitioning, so BufMappingLock was a serious
problem back then. Completely different from the current code.
--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.
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