[Orca-users] Interest in more disk based statistics

[Blair Zajac]

I just finished reading the following article on more accurate disk
based measurements, which I recommend reading:

http://www.sunworld.com/swol-09-1997/swol-09-perf.html

and was wondering if people would want more orcallator.se output
for disks.  Something like the following (the text here are taken
exactly from the article).

1) X = throughput in commands per second = iostat tps = C / T 
2) Srun = average active/run queue service time in nanoseconds
3) Rwait = wait queue residence time = iostat w_svct = Qwait/X 
4) Rrun = active/run queue residence time = iostat a_svct = Qrun/X 
3) Qrun = average active/run queue length = iostat actv

I don't know if there's a point in plotting all of these for the
wait queue.  What do people think about that?

Let me know if this interests you in general and if you'd want it in
a new orcallator.se release.  Let me know what you think the plotted
statistics should also be.

Regards,
Blair