Open Forum > What's New

ScriptBasic for Android

<< < (7/15) > >>

kryton9:
Glad you got it working under Linux.

Support:
For those wondering what a Facade is.


--- Quote ---If you go to the SL4A API one of the things you notice is the word Facade at the end of each API.  Facade refers to a software design pattern.  A software design pattern is a generic reusable solution to a problem that occurs in a specific context in software design.  So, a facade software design pattern, represented by a facade is an object that provides a simplified interface to a larger body of code, like a class library.  As a developer you might want to do this to make the library more readable, and reduce dependencies of code on the inner workings of a given library.  In our case, the facade object is Android, and it provides a single, simple interface to the Android SDK, which is huge (relatively speaking).  The Android facade object provides a simple interface to a number of things including battery manager, camera functionality, media player, settings api, speech recognition api, web cam functionality just to name a few things.

--- End quote ---

kryton9:
Updated the attachment to the latest working python and scriptbasic scripts for benchmarking. Thanks to John's help.

John, I started to do some benchmarking, but am getting errors I can't figure out why in Scriptbasic being a noob to the language.

It is based on code here:http://onlyjob.blogspot.com/2011/03/perl5-python-ruby-php-c-c-lua-tcl.html

The benchmark as written takes too much time, so I modified it to stop after 2 results.
Here is the python script that I tested on my gaming notebook and on my android tablet.

--- Code: ---#!/usr/bin/python -u
import re
import time
import sys

str='abcdefgh'+'efghefgh'
imax=1024/len(str)*1024*4   # 4mb

starttime=time.time();
print "exec.tm.sec\tstr.length"

gstr=''
i=0
twice = 0
while (i < imax+1000):
        i=i+1
        gstr+=str
        gstr=re.sub('efgh','____',gstr)
        lngth=len(str)*i
        if(lngth % (1024*256) == 0):
                print int(time.time()-starttime),"sec\t\t",(lngth/1024),"kb"
twice+=1
if(twice == 2): break # don't want to wait for the whole test

print "\nFinished"
--- End code ---

Here is as far as I could get in SB port:

--- Code: ---s ="abcdefgh"+"efghefgh"
imax = 1024 / LEN(s) * 1024 * 4

starttime = NOW
PRINT "exec.tm.sec\tstr.length"

gstr=""
i=0
c = 0
WHILE ( i < imax + 1000 )
        i=i+1
        gstr+=s
        gstr=REPLACE(gstr,'efgh','____')
        lngth=LEN(s)*i
        IF(lngth % (1024*256) = 0) THEN
                PRINT INT(NOW -starttime),"sec\t\t",(lngth/1024),"kb"
c+=1
IF c= 2 THEN GOTO finito' don't want to wait for the whole test
        END IF
WEND

finito:
PRINT "\nFinished"
--- End code ---

Results of the python tests:
Gaming Notebook Python 2.6:
exec.tm.sec     str.length
3 sec           256 kb
15 sec          512 kb

Android Tablet sl4a Python:
exec.tm.sec     str.length
36 sec           256 kb
157 sec          512 kb

Support:
Don't forget to use & not + for string concatenation. It seems that imax is some kind of reserve keyword. SB doesn't support single quote for declaring strings.


--- Code: ---s ="abcdefgh" & "efghefgh"
i_max =  1024 / LEN(s) * 1024 * 4

starttime = NOW
PRINT "exec.tm.sec\tstr.length\n"

gstr=""
i=0
c = 0
WHILE ( i < i_max + 1000 )
        i=i+1
        gstr&=s
        gstr=REPLACE(gstr,"efgh","____")
        lngth=LEN(s)*i
        IF(lngth % (1024*256) = 0) THEN
                PRINT INT(NOW -starttime)," sec\t\t",(lngth/1024)," KB\n"
c+=1
IF c= 2 THEN GOTO finito
        END IF
WEND

finito:
PRINT "\nFinished\n"

--- End code ---

jrs@laptop:~/sb/test$ scriba kentbench.sb
exec.tm.sec   str.length
107 sec      256 KB
436 sec      512 KB

Finished
jrs@laptop:~/sb/test$

Please check the code to make sure the SB version is doing the same as the other languages.

Python test on my laptop:

jrs@laptop:~/sb/bench$ python pstr.py
exec.tm.sec   str.length
9 sec      256 kb
50 sec      512 kb

Finished
jrs@laptop:~/sb/bench$

I wonder how this would run under BaCon?

kryton9:
Thanks John for finding the problems in the test script and making a nice working script.

Here are my results:

Gaming Notebook scriba bm.sb
exec.tm.sec     str.length
27 sec           256 KB
107 sec         512 KB

Gaming Notebook Python 2.6:
exec.tm.sec     str.length
3 sec            256 kb
15 sec          512 kb

Android Tablet scriba bm.sb
281 sec        256 KB
1148 sec        512 KB

Android Tablet sl4a Python:
exec.tm.sec     str.length
36 sec           256 kb
157 sec          512 kb

Navigation

[0] Message Index

[#] Next page

[*] Previous page