David Lang wrote:
On Tue, 20 Dec 2005, Alan Stange wrote:
Jignesh K. Shah wrote:
I guess it depends on what you term as your metric for measurement.
If it is just one query execution time .. It may not be the best on
UltraSPARC T1.
But if you have more than 8 complex queries running simultaneously,
UltraSPARC T1 can do well compared comparatively provided the
application can scale also along with it.
I just want to clarify one issue here. It's my understanding that
the 8-core, 4 hardware thread (known as strands) system is seen as a
32 cpu system by Solaris. So, one could have up to 32 postgresql
processes running in parallel on the current systems (assuming the
application can scale).
note that like hyperthreading, the strands aren't full processors,
their efficiancy depends on how much other threads shareing the core
stall waiting for external things.
Exactly.
