roy@lorien.gatech.edu (Roy Mongiovi) (12/12/89)
A performance monitor (called, originally enough Monitor) is now available
from the archives at cc.purdue.edu (and possibly others by now). It can
display up to 30 different statistics and combinations of statistics in a
window, plus one statistic (or combination) in the icon, so it's kind of a
combination of Sun's perfmon and perfmeter.
I developed this without access to the Mach source, so some of the meanings
that I have attributed to statistics are conjecture, but I've compared the
monitor with the results of vm_stat, iostat, etc. so at least they are
educated guesses.
I've put quite a bit of effort into making the impact the monitor has on the
system minimal, but when it has to scroll all the graphs it causes a second
or two pause in display updating. If anyone has any ideas how to improve this,
I'd love to hear about it.
Please let me know if you find any problems with the statistics, or if you
have improvements for the code or suggested enhancements. One of the ideas
I was toying with was to be able to point to a place on one of the graphs and
have it display the actual value at that position in the graph numerically.
Since that would take some effort to avoid having the mousedown handling code
significantly degrade the updating of the display, and since I don't have the
1.0 technical manuals yet, I decided to post before attempting that....
Roy J. Mongiovi Systems Support Specialist Office of Computing Services
Georgia Institute of Technology Atlanta, Georgia 30332-0275 (404) 894-4660
uucp: ...!{allegra,amd,hplabs,ut-ngp}!gatech!prism!roy
ARPA: roy@prism.gatech.edurogerj@batcomputer.tn.cornell.edu (Roger Jagoda) (12/12/89)
In article <4289@hydra.gatech.EDU> roy@lorien.gatech.edu (Roy Mongiovi) writes: >A performance monitor (called, originally enough Monitor) is now available >from the archives at cc.purdue.edu (and possibly others by now). It can >display up to 30 different statistics and combinations of statistics in a >window, plus one statistic (or combination) in the icon, so it's kind of a >combination of Sun's perfmon and perfmeter. > > If anyone has any ideas how to improve this, >I'd love to hear about it. > I think the program is super-fantastic. Really! I used it as the basis of a report to justify a memory purchase for our servers (cubes also). It's alsways easier to show management pictures. One problem though, I had to use Scene to capture the windows and print them. Is there room in you queue to add a "Print" button? I think the object is already in the libraries as Terminal, Shell, and the others have it in their menus. I'm not a programmer so I won't try and explain "it should be easy enough..." type deals. If you have time, fine. Tell you what though, you could make this shareware...we'd pay for it...:-) >Please let me know if you find any problems with the statistics, or if you >have improvements for the code or suggested enhancements. One of the ideas >I was toying with was to be able to point to a place on one of the graphs and >have it display the actual value at that position in the graph numerically. >Since that would take some effort to avoid having the mousedown handling code >significantly degrade the updating of the display, and since I don't have the >1.0 technical manuals yet, I decided to post before attempting that.... > Well...as long as you asked...:-) It would be nice to do "blow-ups." For example, maybe not in real-time (to avoid the problem you mentioned) but how about pointing to a spot on the graph and doing the equivalent of a "expand around this point" scale expansion on just those stats so administrators could get a good feel for more of what's happening. You could give the value of the variables tracked and their processes. This is REALLY useful when diagnosing aberant "spikes" in I/O or page-outs. Just MHO! >Roy J. Mongiovi Systems Support Specialist Office of Computing Services >Georgia Institute of Technology Atlanta, Georgia 30332-0275 (404) 894-4660 Roger Jagoda Cornell University FQOJ@CORNELLA.CIT.CORNELL.EDU NeXT Support Specialist