I've monitored this discussion with considerable interest, one thing that some people may not be aware of, is that over 2GB of memory size, /usr/ucb/ps will corrupt the process list (i.e. it's not largefile aware).
Now for the majority this will not be an issue, however on the majority of my production systems we run java processes with a memory size of about 4GB. We also run Databases with inexcess of 10GB resident memory size.
Regards,
Mike Rowell
-----Original Message----- From: Galen Johnson [mailto:gjohnson at trantor.org] Sent: 12 February 2007 03:43 To: hobbit at hswn.dk Subject: Re: [hobbit] Solaris ps
Galen Johnson wrote:
Henrik Stoerner wrote:
On Sat, Feb 10, 2007 at 06:22:52PM -0500, Galen Johnson wrote:
Is there any reason NOT to use '/usr/ucb/ps auxwww' in place of the ps that hobbit-sunos.sh is using?...in other words, will it break anything if I use it (yes, I know I need to run it as root to get everything)? I prefer the output of what Henrik provides but the solaris ps is braindead (truncates at 80 characters).
Yeah, but all of our systems are SPARC...which does...even with Solaris 10. Question stands...is there a reason not to? (other than upgrading, will it affect any of hobbit's builtin functionality?)
If you look at the hobbitclient-sunos.sh script that runs on the clients, you'll see that it currently runs ps -A -o pid,ppid,user,stime,s,pri,pcpu,time,pmem,rss,vsz,args
If you can come up with a /usr/ucb/ps command that provides the same information - hopefully using almost the same column headers - then I have no problem in switching.
Right now, Hobbit only looks at the command line from the "ps" listing, but I do have a plan to make it track the memory- and cpu-utilisation of processes; and for that Hobbit must be able to identify the corresponding columns in the "ps" output. But that's in the future.
Thanks...I looked into trying just that. I can get using options 'auxwww' gets me a lot of the fields and I can get others with 'alxwww'...unfortunately, the 'l' and 'u' options appear to be mutually exclusive...which is annoying. 'auxwww' does give you some memory and cpu info (I _think_ it's the same as the pcpu and pmem). I
wouldn't necessarily suggest this as a permanent change but I need it to get more information from the command line.
I can work up the changes to provide both as an option (it does require that the -o args be rearranged since the output of /usr/ucb/ps
isn't configurable).
=G=
These two commands are equivalent...
/usr/ucb/ps auxwww
USER PID %CPU %MEM SZ RSS TT S START TIME COMMAND
/usr/bin/ps -A -o user,pid,pcpu,pmem,vsz,rss,tty,s,stime,time,args
USER PID %CPU %MEM VSZ RSS TT S STIME TIMECOMMAND
I've verified that SZ and VSZ are the same by comparing output...however, there is a bit of a shortcoming with the berkeley ps...it runs %MEM, SZ and RSS together. It looks like the percent memory is consistently 3 chars wide (%1.1f)...I wish I could say the same about SZ and RSS...
=G=
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