SHAOS » powerbook https://shaos.net/blog { Personal Blog of Shaos } Mon, 04 Aug 2025 00:15:41 +0000 en-US hourly 1 http://wordpress.org/?v=3.9.1 Vectorized memcpy https://shaos.net/blog/2008/04/vectorized-memcpy.html https://shaos.net/blog/2008/04/vectorized-memcpy.html#comments Tue, 29 Apr 2008 11:28:00 +0000 http://shaos.net/blog4/?p=18 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)

]]> https://shaos.net/blog/2008/04/vectorized-memcpy.html/feed 0 Full results for benchsuite on G4 1.67 GHz https://shaos.net/blog/2008/04/full-results-for-benchsuite-on-g4-1-67-ghz.html https://shaos.net/blog/2008/04/full-results-for-benchsuite-on-g4-1-67-ghz.html#comments Tue, 29 Apr 2008 00:49:00 +0000 http://shaos.net/blog4/?p=17 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

]]> https://shaos.net/blog/2008/04/full-results-for-benchsuite-on-g4-1-67-ghz.html/feed 0 Some vectorization for my PowerBook G4 https://shaos.net/blog/2008/04/some-vectorization-for-my-powerbook-g4.html https://shaos.net/blog/2008/04/some-vectorization-for-my-powerbook-g4.html#comments Sat, 26 Apr 2008 15:29:00 +0000 http://shaos.net/blog4/?p=15 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

]]> https://shaos.net/blog/2008/04/some-vectorization-for-my-powerbook-g4.html/feed 0 Memory upgrade for my macs https://shaos.net/blog/2008/04/memory-upgrade-for-my-macs.html https://shaos.net/blog/2008/04/memory-upgrade-for-my-macs.html#comments Wed, 23 Apr 2008 01:06:00 +0000 http://shaos.net/blog4/?p=14 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…

]]> https://shaos.net/blog/2008/04/memory-upgrade-for-my-macs.html/feed 0 Refurbished 15" PowerBook G4 https://shaos.net/blog/2008/04/refurbished-15-powerbook-g4.html https://shaos.net/blog/2008/04/refurbished-15-powerbook-g4.html#comments Sat, 12 Apr 2008 20:29:00 +0000 http://shaos.net/blog4/?p=6 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

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