On Fri, 3 Dec 2004, Ivan R. Judson wrote:
> Additionally, it looks like you identified a startup problem with the image
> loading information, we can look into that, but I'm wondering if you
> compared the startup with a non-ag wxpython application to see what the
> "baseline" is for a wxpython app (there's a great demo that might be good
> for this)?
Which demo were you thinking of ? I found a few odd ones; see below.
I removed the ISO8859-2 and KOI-8 font packages, which cuts down on a few
file operations.
This now on my desktop: RedHat 9, Athlon XP 2400, 2GHz, 512Mb. Another
1-CPU Linux box, that takes forever (> 1 minute) to change rooms in the
Venue client with Rat running. I'd really like an answer to this, as I
can't reasonably buy a single-CPU box to do AG on this basis even if it
is $1000 cheaper. (Windows might be better for a dedicated box, but I'm
not really comfortable with it, and it's not an option for AG on our
desktops) ... more on Rat in next message ...
I tried counting file opens, attempted file opens, reads, writes,
futexes (userland mutex as I recall) and CPU times from the
shell "time" command for a variety of applications and python scripts.
These are what I found:
file operations CPU time
open open/notfound read write futex real user sys
VenueServer.py
to start 548 2484
VenueClient.py
to start 978 3580 4000 4 1.3 0.16
to enter room 1000 3610 4815 13 1.6 0.18
(+4000 per room)
to exit 1032 3673 7743 3602
mozilla-bin 298 392 2740 506 485 7 1.3 0.18
xine 479 662 280 4 0.34 0.08
pine 43 79 0
display 64 195 7 3 0.4 0.01
xv 71 387 7
mplayer 60 156 1
wxGrid_MegaExample.py 263 813 2 3.7 0.65 0.09
wxWizard.py 429 669 2
PyFillingApp.py 789 1195 2
wxTextEntryDialog.py 234 648 841 267 2
00-HELLO-WORLD.py 82 284 65 341
python<<EOF 48 191 1
perl<<EOF 9 38 0
There are a total of about 49,000 system calls for VenueClient (entries
in strace), cf. 12,000 for Mozilla or 109,000 for Pine (which was seeking
all through mail folders with maybe 10,000 messages, and messing around
with signals, and takes too long to do it IMO)
--
Andrew Daviel, TRIUMF, Canada
Tel. +1 (604) 222-7376 (Pacific Time)
secur...@triumf.ca
