Horton

Re: Possible performance regression in version 10.1 with pgbench read-write tests.

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Mithun Cy <mithun.cy@enterprisedb.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>, Robert Haas <robertmhaas@gmail.com>, Amit Kapila <amit.kapila16@gmail.com>
Date: 2018-07-19T19:51:01Z
Lists: pgsql-hackers 
Hi,

On 2018-01-24 00:06:44 +0530, Mithun Cy wrote:
> Server:
> ./postgres -c shared_buffers=8GB -N 200 -c min_wal_size=15GB -c
> max_wal_size=20GB -c checkpoint_timeout=900 -c
> maintenance_work_mem=1GB -c checkpoint_completion_target=0.9 &

Which kernel & glibc version does this server have?

Greetings,

Andres Freund

Commits

  1. Pad semaphores to avoid false sharing.