Quote:
Originally Posted by dbasan
this will give you the details for all the processors
psrinfo -v
Solaris 9 (possibly in a patch) added the -p option to psrinfo to distinguish between physical processors and cores. UltraSPARC IV and IV+ CPU's have two cores per processor - psrinfo and psrinfo -v will display each core as a processor, possibly leading to confusion. psrinfo -vp will help clear this up.
Things get really confusing when you have a T2000 or T1000 (Solaris 10 and later only...) with one CPU that has 8 cores with 4 cores per thread. psrinfo will tell you that this little 1U or 2U box has 32 processors. psrinfo -vp will help you figure out how many CPU sockets are in use and how the cores/threads (strands) map to the physical processor.
Rumor (
http://www.theregister.co.uk/2006/04/13/sun_refresh/) has it that the next generation will confuse this a bit more as you need to look at
multiple (2?, 4?, more?) sockets, each sporting 64 threads. Time to beef up the scrollback buffer of your terminal if you want to look at all the output of psrinfo -v.