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
muchmore features, like thread level parelelism, than AMD Opteron.<br /><br /> the DB2 installation:<br /><br
/><pre>J2EEAppServer HW (SUT hardware) Hardware Vendor: Sun Microsystems, Inc. Model Name: Sun Fire T2000
ServerProcessor: 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>
thepostgres 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
percore</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="mid1184163398.16023.103.camel@phil.companeo.local" type="cite"><pre wrap="">am I wrong or
DB29.1 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
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