Re: [Xen-users] Measuring overall CPU utlization

["John A. Sullivan III" <jsullivan@xxxxxxxxxxxxxxxxxxx>]

On Wed, 2006-04-26 at 14:07 -0700, Diwaker Gupta wrote:
> > <snip>
> > I'm sorry; I should have specified that I am running Xen 2.0.7.  I do
> > not see or have a xm top command.  What do I do in 2.0.7?
> 
> This works for me in Xen 2.0.7 (or you can write a wrapper around 'xm
> list'). This is not guaranteed to be correct/accurate -- you at your
> own risk :-) :
> 
> ====================================
> import sys
> import curses
> import curses.ascii
> import time
> 
> sys.path.append('/usr/lib/python')
> import xen.lowlevel.xc
> 
> xc = xen.lowlevel.xc.new()
> 
> # initialize curses
> stdscr = curses.initscr()
> curses.noecho()
> curses.cbreak()
> stdscr.keypad(1)
> 
> # timeout getch after 1s
> stdscr.timeout(1000)
> 
> (maxy, maxx) = stdscr.getmaxyx()
> 
> vtop_start = time.time()
> first_run = True
> 
> shares = {}
> while True:
>     # sleep for 1 second
>     # between outputs
>     dlist = xc.domain_getinfo()
>     idx = 1
>     cpusum=0
>     if first_run:
>         for d in dlist:
>             shares[d['dom']] = d['cpu_time']
>         first_run = False
>     else:
>         for d in dlist:
>             now = time.time()
>             share = d['cpu_time'] - shares[d['dom']]
>             p = (share*100)/((now - vtop_start) * 10**9)
>             cpusum+=p
>             stdscr.addstr(idx, 1, "%d\t\t%d\t\t%.2f" % (d['dom'], d['cpu'], 
> p))
>             idx += 1
> 
>     stdscr.addstr(idx, 1, "\t\t\t\t%.2f" % cpusum)
>     idx += 1
>     c = stdscr.getch()
>     # quit on q
>     if c == ord('q'):
>         break
>     stdscr.erase()
>     stdscr.refresh()
> 
> curses.nocbreak()
> stdscr.keypad(0)
> curses.echo()
> curses.endwin()
<snip>
That looks like it's working.  Thanks! - John
-- 
John A. Sullivan III
Open Source Development Corporation
+1 207-985-7880
jsullivan@xxxxxxxxxxxxxxxxxxx

Financially sustainable open source development
http://www.opensourcedevel.com


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