As you might know, this blog runs with dotclear2.
The Dotclear 2 development was more than slow, but they seemed to catch up lately:
This is good news.
Tuesday, March 11 2008
[FR]Firefox 3 beta4: ameliorations des performances
By JBK on Tuesday, March 11 2008, 13:02
This is a French translation of this article on Firefox 3.
Firefox 3
Firefox 3 se prépare et approche de la release. La béta4 et sortie et fonctionne!
J'ai essayé de faire quelques benchmarks sur la bête, en me focalisant sur les performances JavaScript et la consommation mémoire.
Méthodologie des tests Javascript:
Le javascript a été utilisé et testé avec le test sunspider javascript lancé 5 fois, sur un Firefox tout neuf, tout beau.
Les tests ont été lancés en utilisant Firefox 2, Firefox 3 beta3 et Firefox 3 beta 4.
Les tests ont été lancés sous Windows XP et Linux, en utilisant 3 machines différentes.
- Thinkpad T61p Core2 Duo 7500, avec 2GB de RAM
- Dell Pentium 4 3,4 Ghz, avec 1GB de RAM
- HP Celeron 2Ghz, avec 512 de RAM
Résulats des tests Javascript
Ces résultats sont une moyenne des 5 résultats de chaque test..
Les résultats montre une accélération nette allant de x3 à x5 en passant de Firefox 2 à Firefox 3!
En ne prenant en compte que la migration Firefox 3 beta3 à Firefox 3 beta4, on atteint entre x2 et x3!
Je ne vais détailler que les résultats moyens sur la machine la plus lente et la plus rapide, sous Windows XP afin de ne pas rallonger ce post.
Machine la plus rapide
- Firefox 2 : 15688.1ms
- Firefox 3 beta3 : 10016.8ms
- Firefox 3 beta4 : 5158.4ms
Speedup : 304%
Machine la plus lente
- Firefox 2 : 51456.1ms
- Firefox 3 beta3 : 27556.2ms
- Firefox 3 beta4 : 10923.8ms
Speedup: 471%
Méthodologie des tests mémoire
Sous Windows XP et Linux, j'ai ouvert un Firefox tout neuf et ouvert 4 onglets:
- lemonde.fr
- www.nytimes.fr
- slashdot.org
- pcinpact.com
Ensuite j'ai refermé le browser et ouvert beaucoup d'onglets (20).
J'ai surveillé la consommation mémoire une fois qu'elle se soit stabilisée.
Résultats des benchmarks mémoire
Je n'ai pas été impressionné par les résultats, car j'ai trouvé que Firefox 3 beta 4 consomme environ 10% de plus en mémoire que Firefox2 sous Windows et Linux en utilisant le premier test sur la machine la plus rapide. (56Mo vs 50.5Mo).
Dans le deuxième tests, avec tous les onglets, la mémoire est environ identique, mais pas moindre...
Par contre, en utilisant Firefox 3 pendant longtemps, je n'ai pas eu d'explosion de la consommation mémoire à 400Mo ou plus. Je suis en train de bosser à essayer de reproduire ce leak de Firefox 2.
Conclusion
Firefox 3 est beaucoup plus rapide dans sa gestion du Javascript, un peu mieux dans sa gestion de la mémoire (consomme plus avec peu d'onglets mais semble leaker un peu moins) et dans l'ensemble semble plus rapide (peut être juste un feeling).
Selon mes tests, Firefox 3 est plus rapide qu'Opera, que IE7/IE8beta1 dans sa gestion du Javascript.
Moralité: Utilisez Firefox 3, c'est que du bon.
Firefox 3 beta4: Performances improvements.
By JBK on Tuesday, March 11 2008, 12:22
Firefox 3
Firefox 3 is in the works, approaching the release. The beta4 is out and runs.
I tried to benchmark it a bit, especially on JavaScript performance and memory consumption.
Javascript Testing: Methodology
The javascript has been used with the sunspider javascript test that was run 5 times, on freshly installed firefox.
The tests were run using Firefox 2, Firefox 3 beta3 and Firefox 3 beta 4.
The tests were done on Windows XP and Linux, using 3 different machines:
- Thinkpad T61p Core2 Duo 7500, with 2GB of RAM
- Dell Pentium 4 3,4 Ghz, with 1GB of RAM
- HP Celeron 2Ghz, with 512 of RAM
Javascript Testing: Results
Those results are an average of the complete 5 times tests.
The results show a 5x to 3x speedup in Javascript performance from Firefox 2 to Firefox 3!
From Firefox 3 beta 3 to Firefox 3 beta 4, the speedup is between 2x and 3x.
I will detail the results for the fastest and the slowest machine on Windows.
Faster machine
- Firefox 2 : 15688.1ms
- Firefox 3 beta3 : 10016.8ms
- Firefox 3 beta4 : 5158.4ms
Speedup : 304%
Slower machine
- Firefox 2 : 51456.1ms
- Firefox 3 beta3 : 27556.2ms
- Firefox 3 beta4 : 10923.8ms
Speedup: 471%
Memory Benchmark: Methodology
On windows XP and Linux, I opened a fresh browser and opened
- lemonde.fr
- www.nytimes.fr
- slashdot.org
- pcinpact.com
Then I reclosed the browser and opened many many tabs.
I monitored the stabilized memory consumption.
Memory Benchmark: Results
I wasn't impressed by the results, because I have found that Firefox 3 beta 4 takes around 10% more memory than Firefox2 on Windows and Linux on the first test on the faster machine (56MB vs 50.5MB).
On the second test, with many more tabs, I have found that the memory is usually around the same, but not really better.
On a long way use, I didn't have any huge memleaks with Firefox using 400MB of RAM quite suddenly, but I am working on it to make it do that too :D
Conclusion
Firefox 3 is way faster in Javascript handling, a bit better in memory consumption, (it takes more memory but seems to not leak like a madman) and overall it seems faster to load pages (just a feeling), compared to Firefox 2.
According to my tests, it is faster than IE7/IE8beta1, Opera 9.5 in Javascript performance.
Then GO and USE it.
Wednesday, February 27 2008
MacBook install: triple boot: linux, windows, Mac OS
By JBK on Wednesday, February 27 2008, 03:17
This details the installation of a MacBook white, shipped in the beginning of 2008.
Set up Mac OS X
Updates
First before anything, update to the latest MacOS X.5.2, and all the necessary downloads... Reboot as many times as needed
Software
Then, install VLC, Firefox 3 béta, Adium and Xcode if you need it.
Done.
Quite easy, so far, no ?
Install Windows XP
Be sure to have your Windows XP SP2 CD and a legit license number.
Bootcamp
Go to spotlight, look for Boot Camp assistant or find it from your Applications folder.
- Run it.
- Prepare a disk space for Windows ( 16GB is ok, I think )
- Quit and re-run it.
- Install Windows with your CD Rom inside.
- Reboot and wait during all the Windows installation that is long and needs a couple of reboots. Mine did fail once, for no obvious reasons.
Windows XP
Once you have your complete Windows XP installation, you will see a Boot Camp icon on your task bar. Keep it.
- Put the Apple OS X CD-ROM in, and let it do all the installation of the drivers. It may require some reboots, but at the end, you have a very new and completely functional Windows XP!
- Reboot
- Do your Windows Update and reboot and again, and reboot, and again... Until nothing appears there.
- Launch the Boot Camp assistant and Default Mac OS HD
Mac OS again
Reboot to mac OS. Be pleased.
Linux
This should work with any distribution and was tested with Debian and Ubuntu
Resize
- Go to Applications/Utils and launch Disk Tool
- Split and resize the main partition in order to have a new partition that you name Linux and format in HFS. (16GB here)
- Check everything.
Reboot on linux
- Put your linux live CD and reboot
- Press `C` to boot on the CD
- Launch your live-CD and install linux.
Install
During the install I deleted the new partition and added two in place:
- One root partition /
- One swap 1GB
- Finish everything, reboot
You should be careful to install your grub in your linux partition and NOT in the MBR, to let reFit do it correctly.
rEFIt
On Mac OS X, install rEFIt and configure it quite quickly.
Reboot and use rEFIt to boot on linux using the "option" key.
Configure linux
You have all you want working except the wireless... Which is a Broadcom BCM4328
sudo apt-get install ndiswrapper-utils-1.9
Find in your Windows partition your wireless drivers:
sudo su
cp -r /media/Windows/WINDOWS/DRVSTORE/bcmwl5_**/ /root/
mv bcmwl5_*** bcmw
cd bcmw
ndiswrapper -i bcmwl5.inf
ndiswrapper -l
ndiswrapper -m
modprobe ndiswrapper
ifconfig
Updates
Uncomment what is needed in your sources.list.
Reboot.
Problems
If you have any issues, like not having the linux partition shown anymore, reinstall grub on your linux partition with a live-CD.
Tuesday, February 26 2008
New laptop: MacBook
By JBK on Tuesday, February 26 2008, 16:01
A new laptop
I am not used to having a Mac with me, but this time has changed.
For my work on VLC, someone helped the VideoLAN project and gave us some new laptops to improve the Mac OS version. I just got one of those, when I was at the FOSDEM.
Macbook
I have one of the white Macbook, 13.3" with a 2.2Ghz proc and 2Gb of Ram, running Leopard.
I upgraded to X.5.2 and Xcode 3.0. I installed VLC, Adium, FFX 3b3 and removed some Microsoft Office crap.
Impressions
I have very gladly impressed by the product, the finition and the OS X.
However, the keyboard is not that good and the keymap horrible. \ ~ | are more than difficult to produce, and the Terminal is very bad, especially if ou want to achieve pgUp, pgDown, End, Home in VIM, in the Terminal.
Else, it seems to be as good as a Linux DE, and has nice coverflow stuffs, and many tools like SVN installed by default. The background image is ugly but I like the 3D dock.
VLC
more later :D
Thursday, January 24 2008
Linux 2.6.24, Intel 4965
By JBK on Thursday, January 24 2008, 18:49
New Kernel : 2.6.24
If you are the happy user of a Intel 4965 AGN, rejoice, the new kernel, 2.6.24 is out and has the iwlwifi drivers inside.
Remember to compile it ( Device Drivers, Networking Device Support, Wireless LAN, IEEE802.11, Intel Wireless Wifi Link Drivers in your make menuconfig ), to have the latest µcode .
If you are the owner of a T61p, remember to use the latest NVIDIA that fixes the hotkeys for brightness :D
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