[Sugar-devel] [Dextrose] [PATCH v5 sugar] Pulsing icon delayed by 5 seconds or so SL#2080

[Martin Dengler]

On Wed, Oct 27, 2010 at 11:15:01PM +0530, Anurag Chowdhury wrote:
> I carried out the same benchmark test, which I earlier conducted on an
> XO-1.5 , on a X0-1 .

Please tell us what the test is/was.  How many times did you run it?
How did you make sure nothing else interfered with the system cpu and
memory while you were running it?

> And I have attached the log files obtained in both the cases. [...]
> the consecutive times taken for the rendering of the frames on the
> XO-1 were much larger as compared to that on a XO-1.5.

I compared the means and standard deviations for the numbers in the
lines having "seconds taken to update frame" and I don't understand
how you came to that "very much larger" conclusion:

$ (~/src/stddev.py < ~/tmp/xo15  ; ~/src/stddev.py < ~/tmp/xo10) | \
~/tmp/compare_means.py
for 'seconds taken to update frame':
XO 1.0 mean was 0.021002, XO 1.5 mean was 0.014994
...change in speed was -28.605292%

You can find the data from your logs (I had to remove some numbers
that were split across the stderr output that was mixed in with your
logging) and the scripts mentioned at:

http://www.martindengler.com/tmp/sl.o-2080

Please, can you do more than wave your hands to help us understand the
effect of what you've done?  You want to affect a key part of the
system for a lot of people.  It's a bit frustrating to hear talk of
"very much larger" speed without actually knowing how and what you're
measuring.

> Regards,
> --Anurag

Martin
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