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Re: I/O monitor - like iptraf but for block devices ?



On Mon, Jan 30, 2006 at 01:52:00PM +0100, Dennis Jacobfeuerborn wrote:
 > Naoki wrote:
 > ...
 > >NAME                  PID                    BLOCKS/W            BLOCKS/R  
 > >KB/s    FD    "FILE NAME"          DEVICE
 > >httpd                 4836			45		    1        
 > >53     13   /var/log/httpd/xxx    /dev/hda2
 > >And so on..
 > >
 > >Diagnosing disk IO problems would be far easier if one had a tool that
 > >could give "at a glace" detail into what is doing what and where..
 > ...
 > 
 > I'd like to see something like this too. Maybe Dave Jones could turn his 
 > "printk hack" (http://kernelslacker.livejournal.com/35270.html) into 
 > something usable by userland tools?

It'd be more worthwhile as a long-term goal to write such a tool
as a systemtap script.  There has been some effort already into
doing something like this.

See http://people.redhat.com/berrange/systemtap/bootprobe/

		Dave


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