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Re: experimental: replace s_lock spinlock code with pthread_mutex on linux

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Jeff Janes <jeff.janes@gmail.com>
Cc: Nils Goroll <slink@schokola.de>, Tom Lane <tgl@sss.pgh.pa.us>, Martijn van Oosterhout <kleptog@svana.org>, Merlin Moncure <mmoncure@gmail.com>, pgsql-hackers@postgresql.org
Date: 2012-06-28T15:29:10Z
Lists: pgsql-hackers 
On Thu, Jun 28, 2012 at 11:21 AM, Jeff Janes <jeff.janes@gmail.com> wrote:
> Also, 20 transactions per connection is not enough of a run to make
> any evaluation on.

FWIW, I kicked off a looong benchmarking run on this a couple of days
ago on the IBM POWER7 box, testing pgbench -S, regular pgbench, and
pgbench --unlogged-tables at various client counts with and without
the patch; three half-hour test runs for each test configuration.  It
should be done tonight and I will post the results once they're in.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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  1. Reduce sinval synchronization overhead.