[mrtg] Re: Monitoring open files and disk i/o

[Ashley M. Kirchner]

alexe wrote:

>         I would like how monitoring open files and disk i/0 in a linux
> computer?

    For open files, you're looking for /proc/sys/fs/file-nr

    The man page for proc states:

     The (read-only) file file-nr gives the number of files
       presently opened.
     The file file-max gives the maximum number of open files the
       kernel is willing to handle.


    For disk I/O, you can use the 'procinfo' command, which will tell you
things like your I/O pages, and disk R/W values.  For example, on my
system, procinfo tells me the following (irrelevant info snipped)

user  :      11:33:01.67   0.3%  page in : 50779930  disk 1:
11400716r11549907w
nice  :       0:00:37.00   0.0%  page out: 23064932
system:       5:34:54.65   0.1%  swap in : 18294086  disk 3:
158662r       0w
idle  :   3d  7:02:22.74  99.6%  swap out:   829328
uptime:   4d 11:44:36.37         context :310316944


    Reading 'man procinfo' you get:

       page in:
          The number of disk block paged into core from disk.
          (A block is almost always 1 kilobyte).

       page out:
              The reverse of the above.

       disk 1-4:
              The number of times your hard disks have been accessed.


    Good luck.

    AMK4

--
W |
  |  I haven't lost my mind; it's backed up on tape somewhere.
  |____________________________________________________________________
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Ashley M. Kirchner <mailto:ashley at pcraft.com>   .   303.442.6410 x130
  SysAdmin / Websmith                           .     800.441.3873 x130
  Photo Craft Laboratories, Inc.             .        eFax 248.671.0909
  http://www.pcraft.com                  .         3550 Arapahoe Ave #6
  .................. .  .  .     .               Boulder, CO 80303, USA



--
Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
Archive     http://www.ee.ethz.ch/~slist/mrtg
FAQ         http://faq.mrtg.org    Homepage     http://www.mrtg.org
WebAdmin    http://www.ee.ethz.ch/~slist/lsg2.cgi