Re: Buffer Requests Trace - Mailing list pgsql-hackers

From Simon Riggs
Subject Re: Buffer Requests Trace
Date
Msg-id CA+U5nMJJurWt1j0Ny3Z9Okm7gKuWBTPjZanJAFYtYjGnDv6Siw@mail.gmail.com
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In response to Re: Buffer Requests Trace  (Lucas Lersch <lucaslersch@gmail.com>)
Responses Re: Buffer Requests Trace
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On 15 October 2014 13:44, Lucas Lersch <lucaslersch@gmail.com> wrote:

> I am recording the BufferDesc.tag.blockNum for the buffer along with the
> spcNode, dbNode, relNode, also present in the tag.

The TPC-C I/O is random, so if you run it for longer you should see a wider set.

Cacheing isn't possible as a way to improve txn rates.

Check that you're touching all tables.

-- Simon Riggs                   http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services



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