SHAOS

Tuesday, July 29, 2008

Your Ternary Computer

I created new web-site about open source ternary computer - www.3niti.org.
I hope it will have emulator soon. Then I will try to build REAL ternary computer...

Labels: internet, opensource, ternary

# posted by Shaos @ 12:51 AM 0 Comments Links to this post

Tuesday, April 29, 2008

Vectorized memcpy

Some benchmarks of memcpy function on my Compaq Presario S6000NX Celeron 2.7 GHz (Linux), PowerMac G4 400 MHz (Linux) and PowerBook G4 1.67 GHz (Linux and Mac OS X):

As we can see vectorized memcpy on PowerPC G4 1.67 GHz almost twice as fast as Celeron 2.7 GHz (which is sometimes similar to speed of vectorized memcpy on PowerPC G4 400 MHz). Also we see that Mac OS X has vectorized memcpy by default. See source code of this test: files/test_g4.c (2.5K)

Labels: altivec, apple, linux, macosx, opensource, ppc

# posted by Shaos @ 7:28 AM 0 Comments Links to this post

Monday, April 28, 2008

Full results for benchsuite on G4 1.67 GHz

Full run of SVN version of freevec's benchsuite takes more than two days on my PowerBook G4 1.67 GHz. This is archive with sqlite DB and SQL: files/g4_1670_080428.zip

Labels: altivec, apple, linux, opensource, powerbook, ppc

# posted by Shaos @ 8:49 PM 0 Comments Links to this post

Saturday, April 26, 2008

Some vectorization for my PowerMac G4

Another test of libfreevec-1.0.3 under the same Debian 4.0 "etch" as at previous time, but now on my PowerMac G4 400 MHz:

Archive with original data files: files/g4_400_tests_080426.zip

Labels: altivec, apple, linux, opensource, powermac, ppc

# posted by Shaos @ 7:19 PM 0 Comments Links to this post

Some vectorization for my PowerBook G4

Some benchmarks of libfreevec-1.0.3 on my PowerBook G4 1.67 GHz under Debian 4.0 "etch". Tests were prepared by benchsuite-1.0.2 with little help from OpenOffice.org Calc. Thanks to Konstantinos Margaritis for excellent work!