Comprehensive methods of viewing memory usage on Solaris [closed]

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On Linux, the "top" command shows a detailed but high level overview of your memory usage, showing:

Total Memory, Used Memory, Free Memory, Buffer Usage, Cache Usage, Swap size and Swap Usage.

My question is, what commands are available to show these memory usage figures in a clear and simple way? Bonus points if they're present in the "Core" install of Solaris. 'sar' doesn't count :)

• operating-system
• solaris
• system-administration

5 Answers 5

Here are the basics. I'm not sure that any of these count as "clear and simple" though.

ps(1)

For process-level view:

$ ps -opid,vsz,rss,osz,args PID VSZ RSS SZ COMMAND 1831 1776 1008 222 ps -opid,vsz,rss,osz,args 1782 3464 2504 433 -bash $ 

vsz/VSZ: total virtual process size (kb)

rss/RSS: resident set size (kb, may be inaccurate(!), see man)

osz/SZ: total size in memory (pages)

To compute byte size from pages:

$ sz_pages=$(ps -o osz -p $pid | grep -v SZ ) $ sz_bytes=$(( $sz_pages * $(pagesize) )) $ sz_mbytes=$(( $sz_bytes / ( 1024 * 1024 ) )) $ echo "$pid OSZ=$sz_mbytes MB" 

vmstat(1M)

$ vmstat 5 5 kthr memory page disk faults cpu r b w swap free re mf pi po fr de sr rm s3 -- -- in sy cs us sy id 0 0 0 535832 219880 1 2 0 0 0 0 0 -0 0 0 0 402 19 97 0 1 99 0 0 0 514376 203648 1 4 0 0 0 0 0 0 0 0 0 402 19 96 0 1 99 ^C 

prstat(1M)

 PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP 1852 martin 4840K 3600K cpu0 59 0 0:00:00 0.3% prstat/1 1780 martin 9384K 2920K sleep 59 0 0:00:00 0.0% sshd/1 . 

swap(1)

"Long listing" and "summary" modes:

$ swap -l swapfile dev swaplo blocks free /dev/zvol/dsk/rpool/swap 256,1 16 1048560 1048560 $ swap -s total: 42352k bytes allocated + 20192k reserved = 62544k used, 607672k available $ 

top(1)

An older version (3.51) is available on the Solaris companion CD from Sun, with the disclaimer that this is "Community (not Sun) supported". More recent binary packages available from sunfreeware.com or blastwave.org.

load averages: 0.02, 0.00, 0.00; up 2+12:31:38 08:53:58 31 processes: 30 sleeping, 1 on cpu CPU states: 98.0% idle, 0.0% user, 2.0% kernel, 0.0% iowait, 0.0% swap Memory: 1024M phys mem, 197M free mem, 512M total swap, 512M free swap PID USERNAME LWP PRI NICE SIZE RES STATE TIME CPU COMMAND 1898 martin 1 54 0 3336K 1808K cpu 0:00 0.96% top 7 root 11 59 0 10M 7912K sleep 0:09 0.02% svc.startd 

sar(1M)

And just what's wrong with sar ? :)