From: | Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz> |
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To: | "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org> |
Subject: | 60 core performance with 9.3 |
Date: | 2014-06-26 23:49:36 |
Message-ID: | 53ACB190.2030206@catalyst.net.nz |
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Lists: | pgsql-performance |
I have a nice toy to play with: Dell R920 with 60 cores and 1TB ram [1].
The context is the current machine in use by the customer is a 32 core
one, and due to growth we are looking at something larger (hence 60 cores).
Some initial tests show similar pgbench read only performance to what
Robert found here
http://rhaas.blogspot.co.nz/2012/04/did-i-say-32-cores-how-about-64.html
(actually a bit quicker around 400000 tps).
However doing a mixed read-write workload is getting results the same or
only marginally quicker than the 32 core machine - particularly at
higher number of clients (e.g 200 - 500). I have yet to break out the
perf toolset, but I'm wondering if any folk has compared 32 and 60 (or
64) core read write pgbench performance?
regards
Mark
[1] Details:
4x E7-4890 15 cores each.
1 TB ram
16x Toshiba PX02SS SATA SSD
4x Samsung NVMe XS1715 PCIe SSD
Ubuntu 14.04 (Linux 3.13)
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