Solaris 10 CPU Usage

psrinfo shows how many CPUs you have:

bash-3.00# psrinfo 0       on-line   since 08/24/2009 13:40:13 1       on-line   since 08/24/2009 13:40:18 2       on-line   since 08/24/2009 13:40:18 3       on-line   since 08/24/2009 13:40:18 4       on-line   since 08/24/2009 13:40:18 5       on-line   since 08/24/2009 13:40:18 6       on-line   since 08/24/2009 13:40:18 7       on-line   since 08/24/2009 13:40:18 8       on-line   since 08/24/2009 13:40:18

adding the –v option gives you details about those CPUs

bash-3.00# psrinfo -v | head Status of virtual processor 0 as of: 11/19/2009 03:50:06   on-line since 08/24/2009 13:40:13.   The sparcv9 processor operates at 1165 MHz,         and has a sparcv9 floating point processor. Status of virtual processor 1 as of: 11/19/2009 03:50:06   on-line since 08/24/2009 13:40:18.   The sparcv9 processor operates at 1165 MHz,         and has a sparcv9 floating point processor. Status of virtual processor 2 as of: 11/19/2009 03:50:06   on-line since 08/24/2009 13:40:18. bash-3.00#

“prstat -s cpu -n 10” is a bit like top, but it tells you what cpu you are running against

bash-3.00# prstat -s cpu -n 10 PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP 3138 900233 895M 588M cpu16 1 0 141:24:49 1.7% mysqld/26 1005 root 19M 18M sleep 59 0 38:34:21 0.0% esd/1 944 daemon 3192K 2208K sleep 29 0 0:00:00 0.0% statd/1 542 root 1768K 256K sleep 29 0 0:00:00 0.0% efdaemon/1 8633 root 1712K 1168K sleep 1 0 0:00:16 0.0% utmpd/1 165 root 7568K 4920K sleep 29 0 0:00:00 0.0% devfsadm/8 940 root 2992K 2136K sleep 29 0 0:00:00 0.0% keyserv/3 147 root 7464K 4472K sleep 29 0 0:00:00 0.0% syseventd/15 9 root 11M 11M sleep 29 0 1:00:07 0.0% svc.configd/12 7 root 32M 31M sleep 29 0 0:04:45 0.0% svc.startd/13 Total: 129 processes, 541 lwps, load averages: 1.12, 1.14, 1.18 bash-3.00#

You can the use the mpstat command to see how each processor is doing:

bash-3.00# mpstat CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl 0 80 0 566 264 53 50 0 2 9 0 203 2 2 0 96 1 1 0 193 15 2 25 0 0 1 0 57 0 0 0 99 2 0 0 48 8 0 15 0 0 0 0 12 0 0 0 100 3 0 0 8 3 0 5 0 0 0 0 4 0 0 0 100 4 15 0 72 8 0 15 0 0 2 0 33 0 0 0 99 5 0 0 4 3 0 4 0 0 0 0 1 0 0 0 100 6 0 0 5 7 1 10 0 0 0 0 0 0 0 0 100 7 0 0 5 6 0 9 0 0 0 0 0 0 0 0 100 8 64 0 369 22 0 47 0 2 7 0 185 3 1 0 96 9 3 0 73 3 0 6 0 0 1 0 22 0 0 0 100

“mpstat –p 10 10”  will refresh the screen every 10 seconds