Tom is right. Unless your workload can generate lots of simultaneous
queries, you will not reap the full benefit of the Sun Fire T2000
system. I have tested 8.1.3 with an OLTP workload on an 8 cores system.
With 1500-2000 client connections, the CPU was only about 30% utilized.
The UltraSPARC T1 processor was designed for throughput with many cores
running at lower frequency (1-1.2 GHz) to reduce power consumption. To
speed up a single big query, you'd be better off with a parallelize DB
or an Opteron system with higher clock speed like this one
http://www.sun.com/servers/entry/x4200/
Regards,
-Robert
Tom Lane wrote:
"Juan Casero \(FL FLC\)" <Juan.Casero@xxxxxxxxxxxxxx> writes:
... This box has a single Ultrasparc T1 cpu with six execution
piplelines that can each handle 4 threads. With the Unix top utility
the postgresql server appears to bounce around between the available
threads on the system.
Try sending it more than one query at a time? If you're testing with
just one client connection issuing queries, that's about what I'd expect.
regards, tom lane
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