percentage of memory used used by a process.
normally prstat -J will give the memory of process image and RSS(resident set size) etc. how do i knowlist of processes with percentage of memory is used by a each process.
i am working on solaris unix. addintionally ,what are the regular commands that you use for monitoring processes,performences of processes that might be very useful to all!
The top command will give you several memory-consumption numbers. htop is much nicer, and will give you percentages, but it isn't installed by default on most systems.
run
top and then Shift+O this will bring you to the options, press n (this maybe different on your machine) for memory and then hit enter
Example of memory sort.
top - 08:17:29 up 3 days, 8:54, 6 users, load average: 13.98, 14.01, 11.60
Tasks: 654 total, 2 running, 652 sleeping, 0 stopped, 0 zombie
Cpu(s): 14.7%us, 1.5%sy, 0.0%ni, 59.5%id, 23.5%wa, 0.1%hi, 0.8%si, 0.0%st
Mem: 65851896k total, 49049196k used, 16802700k free, 1074664k buffers
Swap: 50331640k total, 0k used, 50331640k free, 32776940k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
21635 oracle 15 0 6750m 636m 51m S 1.6 1.0 62:34.53 oracle
21623 oracle 15 0 6686m 572m 53m S 1.1 0.9 61:16.95 oracle
21633 oracle 16 0 6566m 445m 235m S 3.7 0.7 30:22.60 oracle
21615 oracle 16 0 6550m 428m 220m S 3.7 0.7 29:36.74 oracle
16349 oracle RT 0 431m 284m 41m S 0.5 0.4 2:41.08 ocssd.bin
17891 root RT 0 139m 118m 40m S 0.5 0.2 41:08.19 osysmond
18154 root RT 0 182m 98m 43m S 0.0 0.2 10:02.40 ologgerd
12211 root 15 0 1432m 84m 14m S 0.0 0.1 17:57.80 java
Another method on Solaris is to do the following
prstat -s size 1 1
Example prstat output
www004:/# prstat -s size 1 1
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
420 nobody 139M 60M sleep 29 10 1:46:56 0.1% webservd/76
603 nobody 135M 59M sleep 29 10 5:33:18 0.1% webservd/96
339 root 134M 70M sleep 59 0 0:35:38 0.0% java/24
435 iplanet 132M 55M sleep 29 10 1:10:39 0.1% webservd/76
573 nobody 131M 53M sleep 29 10 0:24:32 0.0% webservd/76
588 nobody 130M 53M sleep 29 10 2:40:55 0.1% webservd/86
454 nobody 128M 51M sleep 29 10 0:09:01 0.0% webservd/76
489 iplanet 126M 49M sleep 29 10 0:00:13 0.0% webservd/74
405 root 119M 45M sleep 29 10 0:00:13 0.0% webservd/31
717 root 54M 46M sleep 59 0 2:31:27 0.2% agent/7
Keep in mind this is sorted by Size not RSS, if you need it by RSS use the rss key
www004:/# prstat -s rss 1 1
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
339 root 134M 70M sleep 59 0 0:35:39 0.1% java/24
420 nobody 139M 60M sleep 29 10 1:46:57 0.4% webservd/76
603 nobody 135M 59M sleep 29 10 5:33:19 0.5% webservd/96
435 iplanet 132M 55M sleep 29 10 1:10:39 0.0% webservd/76
573 nobody 131M 53M sleep 29 10 0:24:32 0.0% webservd/76
588 nobody 130M 53M sleep 29 10 2:40:55 0.0% webservd/86
454 nobody 128M 51M sleep 29 10 0:09:01 0.0% webservd/76
489 iplanet 126M 49M sleep 29 10 0:00:13 0.0% webservd/74
I'm not sure if ps is standardized but at least on linux, ps -o %mem gives the percentage of memory used (you would obviously want to add some other columns as well)