* You are viewing the archive for April, 2008

Vectorized memcpy

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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 … Continue Reading

Full results for benchsuite on G4 1.67 GHz

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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

Some vectorization for my PowerMac G4

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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

Some vectorization for my PowerBook G4

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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 … Continue Reading

Memory upgrade for my macs

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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…… Continue Reading

Used PowerMac G4 400MHz

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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 … Continue Reading

"Game of Life" evolution network

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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.

BigDog parody ;)

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

Refurbished 15" PowerBook G4

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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 … Continue Reading

No windows NYC skyscraper

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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