| From: | André Gomes Lamas Otero <andre(dot)otero(at)bireme(dot)org> |
|---|---|
| To: | Philippe Amelant <pamelant(at)companeo(dot)com> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: PostgreSQL publishes first real benchmark |
| Date: | 2007-07-11 16:37:27 |
| Message-ID: | 46950747.4080508@bireme.org |
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| Lists: | pgsql-performance |
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I don't this so, because DB2 is running on a Sun Sparc T1 processor
(<a class="moz-txt-link-freetext" href="http://www.sun.com/processors/UltraSPARC-T1/">http://www.sun.com/processors/UltraSPARC-T1/</a>) that's implements much
more features, like thread level parelelism, than AMD Opteron.<br>
<br>
the DB2 installation:<br>
<br>
<pre>J2EE AppServer HW (SUT hardware)
Hardware Vendor: Sun Microsystems, Inc.
Model Name: Sun Fire T2000 Server
Processor: Sun UltraSPARC T1
MHz: 1400
# of CPUs: 8 cores, 1 chip, 8 cores/chip (4 threads/core)
Memory (MB): 65536
L1 Cache: 16KB(I)+8KB(D) per core
L2 Cache: 3MB per chip</pre>
the postgres installation:<br>
<pre>J2EE AppServer HW (SUT hardware)
Hardware Vendor: Sun Microsystems, Inc.
Model Name: Sun Fire X4200 M2
Processor: AMD Opteron 2220 SE
MHz: 2800
# of CPUs: 4 cores, 2 chips, 2 cores/chip
Memory (MB): 8192
L1 Cache: 64KB(I)+16KB(D) per core
L2 Cache: 1MB per core</pre>
<br>
postgres with a inferior hardware has better performance than DB2 <span
class="moz-smiley-s1"><span> :-) </span></span><br>
<br>
<br>
Best Regards,<br>
André<br>
<br>
Philippe Amelant escreveu:
<blockquote cite="mid1184163398(dot)16023(dot)103(dot)camel(at)phil(dot)companeo(dot)local"
type="cite">
<pre wrap="">am I wrong or DB2 9.1 is faster on less powerfull hardware ?
Le lundi 09 juillet 2007 à 11:57 -0400, Jignesh K. Shah a écrit :
</pre>
<blockquote type="cite">
<pre wrap="">Hello all,
I think this result will be useful for performance discussions of
postgresql against other databases.
<a class="moz-txt-link-freetext" href="http://www.spec.org/jAppServer2004/results/res2007q3/">http://www.spec.org/jAppServer2004/results/res2007q3/</a>
More on Josh Berkus's blog:
<a class="moz-txt-link-freetext" href="http://blogs.ittoolbox.com/database/soup/archives/postgresql-publishes-first-real-benchmark-17470">http://blogs.ittoolbox.com/database/soup/archives/postgresql-publishes-first-real-benchmark-17470</a>
Regards,
Jignesh
---------------------------(end of broadcast)---------------------------
TIP 6: explain analyze is your friend
</pre>
</blockquote>
<pre wrap=""><!---->
---------------------------(end of broadcast)---------------------------
TIP 7: You can help support the PostgreSQL project by donating at
<a class="moz-txt-link-freetext" href="http://www.postgresql.org/about/donate">http://www.postgresql.org/about/donate</a>
</pre>
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