On 10/09/2014 19:54, J. Landman Gay wrote:
On 9/10/2014, 1:00 PM, William Prothero wrote:
Jacqueline: But…. a byte is a byte is 8 bits, unicode may be 2 bytes
per char, or not, right? I don’t see where unicode would come into
simple byte addressing. But then, you may be right that somehow
unicode stuff has gotten into the mix somehow.
I'm not smart enough to know what's going on under the hood, but since
Alex was benchmarking strings, and since Unicode is the main change to
those in LC 7.0, I can only think they're related somehow.
Thing is, I wasn't trying to benchmark strings, I was trying to
benchmark byte operations :-)
I thought that by using "byte X to Y of ..." that I was using "just"
bytes, not strings - and therefore not Unicode.
But Ali has already produced a fix giving significant speed-up (!!) and
in his explanatory comment in the bug report he describes how my test
code required a type conversion on each assignment (because I was
inadvertantly making the variable be a character string to start with).
So his fix gives a big improvement - and then (using a simple script
change in the test example) he can gain another 40% improvement.
I am absolutely blown away by this responsiveness !!
Unfortunately, until his fix is included (due to be in the next build),
his suggested script change doesn't help - so I'm not able to do any
further (useful) testing on this part of performance. It looks like
between his code change plus his suggested script change, the
performance hit reduces to a mere 7X - still (IMHO) a pretty high
number, but hopefully good enough that we can live with the performance
impact for now.
I'll re-test once RC2 comes out, and in the meantime I think I should
play around with some more performance testing of other areas of the code.
-- Alex.
P.S. Thanks again to Ali - I can hardly believe this level of
responsiveness.
_______________________________________________
use-livecode mailing list
use-livecode@lists.runrev.com
Please visit this url to subscribe, unsubscribe and manage your subscription
preferences:
http://lists.runrev.com/mailman/listinfo/use-livecode
