SHAOS

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

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

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

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!






Archive with original data files: files/g4_1670_tests_080425.zip

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

Today I received package with memory upgrade for PowerBook G4 (additional 512 MB for $40), PowerMac G4 (two additional 128 MB for $12 each) and also 3 batteries ($5 each) for PowerMac G4 and iMac G3 (not yet discussed here):



Screenshot from MacOS X running on my 15" PowerBook G4:



It says "Bus Speed: 167 MHz". Is it correct? I thought it should be 333 MHz...

P.S. According to specification it's correct...

Labels: apple, macosx, photo, powerbook, powermac, ppc

Yesterday we saw a hawk in our local park:

Labels: photo

Sent from my Treo 680

Labels: photo, treo

Sent from my Treo 680

Labels: photo, treo

Today I got my Power Mac G4 400 MHz for $150 (incl.shipping)! It's a nice system from 1999 that has 256 MB RAM, 13.7 GB HDD, CD-ROM, 10/100 Ethernet, USB keyboard & mouse and 3 free PCI-slots.



I've just installed Debian 4.0r3 from "Businesscard-CD" (computer was delivered with MacOS 9.2 onboard). Probably I will do some upgrades as second Ethernet interface, additional memory and new battery for clock. I plan to use it as router and home web-server and may be as node for my "homebrew" distributed computing network...

Labels: apple, distributed_computing, linux, photo, powermac, ppc

Some time ago I registered domain LifeGE.net. Main idea of LifeGE.net was creating place to discuss some techniques for automatic design of some Conway's Game of Life patterns for implementation of real computer over Game of Life. I plan to use genetic algorithms for search of that patterns and also I need help of Internet people and their CPU cycles ;)
P.S. You can read about cellular automata "Conways's Game of Life" on Wikipedia.

Labels: distributed_computing, game_of_life, genetic_algorithms

If you saw original BigDog video then it's for you:

Labels: humor, internet, video

Star V838 Monocerotis that was exploded a few years ago now looks like Firefox logo :)

Labels: internet, opensource, space

One year ago I bought refurbished 15'' PowerBook G4 from Apple web-store (no more PPC models are there now) for $1411 (including taxes and free shipping) to play with Debian GNU/Linux port for PowerPC. This laptop has PowerPC G4 processor running with frequency 1.67 GHz, 512 MB RAM, 80 GB HDD, DVD burner. Also it includes installation disks with MacOS X 10.4.


I made it dualboot: Debian GNU/Linux 4.0 "etch" (boot by default with partition 50 GB plus swap 2 GB) and MacOS X 10.4 (second optional boot with partition 20 GB). Also I made special 6 GB ext2 partition for data copying between OSs (ext2 drivers for MacOS X are available on sourceforge.net).

Now I'm thinking about upgrading memory to 1 GB, but I don't know should I use exactly the same memory (Samsung) or I can put any compatible (PC2700) 512MB to second memory slot?

Update Apr 13, 2008: I've just found exactly the same memory module online for $39.97

Labels: apple, linux, macosx, photo, powerbook, ppc

A few days ago I got a chance to walk near this piece of art in Manhattan. Now I know that it's AT&T building...

Sent from my Treo 680

Labels: city, photo, treo

It's great to have ability to post messages and pictures from my Treo directly to blog through e-mail!

Sent from my Treo 680

Labels: photo, test, treo

Finally welcome to my blog! ;)

Labels: test