Milan Zimmermann wrote:
On 2006 September 21 11:55, David Shaffer wrote:
You're certainly right Brad but let me add that the Squeak 3.9 image is unbearably slow on my linux-based laptop (2Ghz Pentium 4M, 1Gb RAM). I've even tried VM's from 3.8 to Ian's recent 3.9 release. It is too slow for simple window operations and causes a gastly amount of CPU utilization even under lite GUI use.
David,
This is suprising, on my:
- old Athlon 2400
- SuSE9.3
- VM Squeak3.9alpha of 4 July 2005 [latest update: #7021],
- latest 3.9 gama 7058 image
- 1280x960
I was just recently thinking "this is best speed I have seen since 3.7". When doing simple windows operations (moving around, resizing etc) top reports below 30%, always for a very brief period when doing the work (typically below 20%).
shaffer@localhost ~/Squeak/Squeak3.9g-7055 $ squeak -version 3.9-7 #1 Mon Sep 4 17:01:02 EDT 2006 gcc 3.4.6 Squeak3.9alpha of 4 July 2005 [latest update: #7021] Linux localhost 2.6.17-gentoo-r4 #1 PREEMPT Thu Aug 24 18:31:06 EDT 2006 i686 Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz GNU/Linux default plugin location: /usr/local/lib/squeak/3.9-7/*.so
Yoshiki's test (higlight, alt-p) | a b | a := FloatArray new: (16 * 1024*1024). b := FloatArray new: (16 * 1024*1024). [a += b] timeToRun. 268
Under 3.9g-7055 I get numbers in the hundreds. Average of about 157 ms.
David or Antonio, if you would like to compare: (higlight, alt-p) [ 1 to: 10 do: [ :i | XYPlotter example1 plot asMorph openInWorld. XYPlotter example2 plot asMorph openInWorld. XYPlotter example3 plot asMorph openInWorld. XYPlotter example4 plot asMorph openInWorld. XYPlotter example5 plot asMorph openInWorld. XYPlotter example6 plot asMorph openInWorld. ] ] timeToRun. ===> RESULT 17295 (hardware as above)
There is no XYPlotter in my 3.9g-7055 image. I tried loading Plot Morph and Plot Morph 2 from SqueakMap. Neither worked so I'm guessing that's not the source of this class for 3.9. I'd be happy to run this benchmark on the off chance it will lead to some information about why things are sluggish. I'm guessing, though, that it is a dead-end. "feels slow" is often hard to track down in benchmarks. Probably something that does window manipulation would reveal the problem...
David