| From: | Manabu Ori <manabu(dot)ori(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Tatsuo Ishii <ishii(at)postgresql(dot)org>, robertmhaas(at)gmail(dot)com, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: spinlocks on powerpc |
| Date: | 2012-01-02 17:10:31 |
| Message-ID: | CADWW1HGMPf2+21JkU7AXcXEYhY8ASZW8E=B1JwPnRb5-5MzJSg@mail.gmail.com |
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| Lists: | pgsql-hackers |
By the way...
2012/1/2 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
> (It's depressing that these numbers have hardly moved since August ---
> at least on this test, the work that Robert's done has not made any
> difference.)
I merged some results and created another graph.
Please find an attached png file and you'll see obvious
performance improvement...
All the results are run on the same system:
Power 750 (32 physical cores, virtually 128 cores using SMT4)
mem: 256GB
OS: RHEL6.1 kernel 2.6.32-131.0.15.el6.ppc64
gcc version 4.4.5 20110214 (Red Hat 4.4.5-6)
| Attachment | Content-Type | Size |
|---|---|---|
| pgbench-Power750-20120102-2.png | image/png | 121.8 KB |
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