Re: Re: [PORTS] pgmonitor and Solaris

On Fri, Mar 30, 2001 at 11:07:25AM +0100, Pete Forman allegedly wrote:
> I've done a quick survey of the Suns available to me to see whether
> sendmail updates the ps display.  The summary is:
> 
>    1) Require "/usr/ucb/ps w" at least.  /usr/bin/ps has no options
>       that I can find to display the status of sendmail.
> 
>    2) Older versions of sendmail do not update the status.  8.6 does
>       not update, 8.8.8 does.
> 
>    3) Solaris 2.5 and 2.5.1 have sendmail 8.6, 7 has 8.9.1, 8 has
>       8.9.3.  Some 2.6 have 8.6, others have 8.8.8.  Presumably
>       patches have beed applied.
> 
> On other OSs, AIX 4.1, 4.2, 4.3 have sendmail 8.8.4, 8.8.6, 8.8.8 or
> 8.9.3.  They all display the status in both SysV and BSD modes.
> On AIX there is one ps command which handles both styles.
> 
> IRIX 6.2 and 6.5.4m through 6.5.10m have sendmail 8.8.8, 8.9.1, 8.9.3.
> No status is available.  There do not appear to be any BSD-ish ps
> options.

The way /usr/ucb/ps in Solaris extracts the status for a process requires
root rights and is (in my opinion) pretty gross. What it does is read the
pseudo-file /proc/<pid/as, which is actually the memory used by the
program. /usr/bin/ps only accesses /proc/<pid>/psinfo, which contains the
real parameters supplied to the program and not the clobbered version.

Regards,

Mathijs
-- 
It's not that perl programmers are idiots, it's that the language
rewards idiotic behavior in a way that no other language or tool has
ever done.                                                   Erik Naggum