Re: [Xen-users] Measuring overall CPU utlization

["Diwaker Gupta" <diwaker.lists@xxxxxxxxx>]

> <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()
===========================================
--
Web/Blog/Gallery: http://floatingsun.net/blog

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users