[Stackless] Re: Project

[Christian Tismer]

Mika Anttila wrote:
> Hi Christian,
> 
> I tested latest code with testbench and it worked quite nicely.
> I will do some testing but overall from our point of view
> project has served its purpose. Thank You very much.
> 
> There are few minor areas what could be enhanced like
> optimization (main tasklet initialization) and using just
> one interpreter ... but it can be done later if you are available
> to do this work.

Here is a test program which shows how badly the "call from outside"
performs today.
It's a shame...

D:\slpdev\src\2.2\src\Stackless\test>..\..\pcbuild\python taskspeed.py
2.2.3 Stackless 3.0 030821 (#28, Aug 24 2003, 06:03:14) [MSC 32 bit (Intel)]
10000000 frame switches      took   3.87651 seconds, rate =    2579641/s
10000000 frame softswitches  took   1.94712 seconds, rate =    5135795/s
10000000 cfunction calls     took   2.07456 seconds, rate =    4820290/s
10000000 cframe softswitches took   0.46392 seconds, rate =   21555577/s
10000000 function calls      took   4.92227 seconds, rate =    2031581/s
10000000 generator calls     took   3.32308 seconds, rate =    3009252/s
10000000 cframe switches     took   2.15792 seconds, rate =    4634097/s
10000000 cframe 100 words    took   4.18344 seconds, rate =    2390380/s
10000000 cframe from outside took  41.19093 seconds, rate =     242771/s
The penalty per stack word is about 8.846 percent of raw switching.
Stack size of initial stub   = 13
Stack size of frame tasklet  = 56
Stack size of cframe tasklet = 34

ciao - chris

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