check_swap quirk on Solaris
Carroll, Jim P [Contractor]
jcarro10 at sprintspectrum.com
Thu Jan 16 18:59:54 CET 2003
On a related note (and possibly of at least as much interest) is the Solaris
notion of 'scan rate', which vmstat reports on.
I've been trying to dig around to see if I can find anything similar on the
Linux side. I'd think that a quick script plugin which monitors the scan
rate (on Solaris, at any rate) would be desireable.
Any thoughts on what the Linux equivalent could be?
jc
> -----Original Message-----
> From: Karl DeBisschop [mailto:karl at debisschop.net]
> Sent: Thursday, January 16, 2003 7:43 AM
> To: Voon, Ton
> Cc: 'Tim Shouldice'; Carroll, Jim P [Contractor]; 'Grae Noble';
> nagios-users at lists.sourceforge.net
> Subject: RE: [Nagios-users] check_swap quirk on Solaris
>
>
> On Thu, 2003-01-16 at 02:31, Voon, Ton wrote:
> > Here's the script. Ideally I think it should be integrated
> into the C
> > check_swap program - probably using solaris specific ifdefs
> - but it looked
> > too difficult for me. Also some people dispute the validity
> of the check as
> > opposed to swap -l. My guide was this reference:
> > http://www.sun.com/sun-on-net/itworld/UIR980701perf.html.
>
> Interesting reading...
>
> I looked at linux (2.4.20-2.13 i686) and saw:
>
> [kdebisschop at localhost build-redhat]$ cat /proc/meminfo
> total: used: free: shared: buffers: cached:
> Mem: 128999424 125702144 3297280 0 4173824 77893632
> Swap: 263200768 57708544 205492224
> MemTotal: 125976 kB
> MemFree: 3220 kB
> MemShared: 0 kB
> Buffers: 4076 kB
> Cached: 49136 kB
> SwapCached: 26932 kB
> Active: 92372 kB
> ActiveAnon: 54180 kB
> ActiveCache: 38192 kB
> Inact_dirty: 4196 kB
> Inact_laundry: 12796 kB
> Inact_clean: 2096 kB
> Inact_target: 22292 kB
> HighTotal: 0 kB
> HighFree: 0 kB
> LowTotal: 125976 kB
> LowFree: 3220 kB
> SwapTotal: 257032 kB
> SwapFree: 200676 kB
>
> I wonder if there's any relation to the SwapCached item...
>
> Anyway, I think what you have can be done in C with just a few changes
> to configure.in. If I have a little time on a Solaris
> machine, I'll look
> into it.
>
> --
> Karl
>
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