Re: monitoring I/O

[Nicholas Dronen]

Check out the disk_io field in /proc/stat.

On Wed, Jan 24, 2001 at 11:52:36AM +1100, Michael McLeod wrote:
> Hello
> 
> I am hoping someone can give me a little information or point me in the
> right direction.  I would like to write an application that monitors I/O
> on a linux machine, but I need some help in determining where to get the
> information I'm looking for.  What I would like to do is 'hook' into the
> kernel and record information such as volume name, type of request (read
> or write), the amount of data being read or written, how long each
> transaction takes  
> 
> Any help would be greatly appreciated, or if there is something like
> this already available that would be even better.  Thanx
> 
> Mike
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[PATCH] Documentation/sysrq.txt: How to scroll back on console.

[Nicholas Dronen]

Hi,

This might be useful to add to Documentation/sysrq.txt.

Regards,

Nick 

--- sysrq.txt.orig  Wed Nov 29 17:13:18 2000
+++ sysrq.txt   Wed Nov 29 17:23:33 2000
@@ -21,7 +21,10 @@
 
 On x86   - You press the key combo 'ALT-SysRQ-'. Note - Some
(older?) may not have a key labeled 'SysRQ'. The 'SysRQ' key is
-   also known as the 'Print Screen' key.
+   also known as the 'Print Screen' key.  To scroll back (as
+   you often need to do to view all of the output of some
+   SysRQ commands), simply press shift-pageup.  (I only know
+   this to work on x86.  It might work elsewhere as well.)

 On SPARC - You press 'ALT-STOP-', I believe.

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