Profile of hg clone on windows
mpm at selenic.com
Mon Sep 19 15:19:07 CDT 2005
On Mon, Sep 19, 2005 at 01:05:43PM -0700, Matt Mackall wrote:
> > $ time find upstream | wc
> > 32410 40794 2542038
> > real 0m12.654s
> > user 0m2.061s
> > sys 0m10.826s
Ok, sys here is a bit weird. It seems to be including I/O wait time or
> > (now in windows' cmd)
> > C:\src>hg --time clone upstream clonetimetest
> > Time: real 81.354 secs (user 11.266+0.000 sys 4.875+0.000)
> So we took 16 seconds to do all the crunching (user+sys), and spent
> the rest of the time waiting.
> > C:\src>hg --time clone -U upstream clonetimetest3
> > Time: real 21.500 secs (user 4.641+0.000 sys 0.875+0.000)
> And here we took 5.5 seconds seconds of CPU time.
> Either your filesystem or disk is slow, or there's significant other load on
> your machine.
Btw, if your machine is otherwise unloaded, this really points to bad
caching or journalling behavior in NTFS. You should sanity check the
above numbers again the performance monitor graph app thingy.
Mathematics is the supreme nostalgia of our time.
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