http://www.osnews.com/story/19459/Measuring_Fedora_s_Boot_Performance Exploring the Future of Computing en-us Copyright 2001-2009, David Adams adam+nospam@osnews.com Tue, 10 Nov 2009 05:11:16 GMT http://www.osnews.com/images/osnews.gif http://www.osnews.com http://osnews.com/thread?304554 http://osnews.com/thread?304554 Cheap Xanax Online
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Buy Oxycontin Tue, 11 Mar 2008 23:39:00 GMT donotreply@osnews.com (voalse12345) Comments http://osnews.com/thread?304557 http://osnews.com/thread?304557 I noticed, yesterday, that readahead was not in the default install for my Fedora 8 machines. Looking at the boot charts, it looks like 8 and 9 do not use it. Anyone have info on the rationale? It was always a bit of a hack. But my understanding was that it *did* help. Tue, 11 Mar 2008 23:53:00 GMT donotreply@osnews.com (sbergman27) Comments http://osnews.com/thread?304561 http://osnews.com/thread?304561 Arch Linux Boot Performance:

http://fopref.meinungsverstaerker.de/div/bootchart1.png
http://fopref.meinungsverstaerker.de/div/bootchart2.png

;-) Wed, 12 Mar 2008 00:01:00 GMT donotreply@osnews.com (Ford Prefect) Comments http://osnews.com/thread?304562 http://osnews.com/thread?304562 I intended to post this on top level and not as a reply. Sorry for the inconvenience. Wed, 12 Mar 2008 00:02:00 GMT donotreply@osnews.com (Ford Prefect) Comments http://osnews.com/thread?304565 http://osnews.com/thread?304565 It actually slowed things down. Wed, 12 Mar 2008 00:09:00 GMT donotreply@osnews.com (VistaUser) Comments http://osnews.com/thread?304602 http://osnews.com/thread?304602 I'm not sure but wouldn't a test be slower because of all the debug flags set? I mean there is going to be alot of code running to catch verbose output right? Wed, 12 Mar 2008 03:48:00 GMT donotreply@osnews.com (Bitterman) Comments http://osnews.com/thread?304634 http://osnews.com/thread?304634 That's pretty ancient though (2005?), you should make and up to date one Wed, 12 Mar 2008 06:59:00 GMT donotreply@osnews.com (Blackhouse) Comments http://osnews.com/thread?304657 http://osnews.com/thread?304657 Bootchart _is_ in the fedora repo, so "yum install bootchart" is just enough to have it installed.

At a quick inspection, I did not find in the Ubuntu review which version they installed. If it was the LiveCD, they should make a comparison with the Fedora one because the default services list is very diverse. Wed, 12 Mar 2008 09:49:00 GMT donotreply@osnews.com (giallu) Comments http://osnews.com/thread?304673 http://osnews.com/thread?304673 I tried ArchLinux about two months ago and the boot time was slower than in most distros because loading udev uevents took almost a minute to finish. I checked the ArchLinux forums and it appears that a lot of users have experienced the same issue, especially those whose computer is a bit old. Wed, 12 Mar 2008 12:00:00 GMT donotreply@osnews.com (da_Chicken) Comments http://osnews.com/thread?304680 http://osnews.com/thread?304680 You can disable UDEV autodetect and write the needed modules into the config file.

Other than that, you are right. UDEV autodetect became a serious bottleneck on Arch boot. Wed, 12 Mar 2008 12:41:00 GMT donotreply@osnews.com (Ford Prefect) Comments http://osnews.com/thread?304721 http://osnews.com/thread?304721 shrug,
udev has nothing to do with Arch boot problems.
udev events is causing problems.
You can disable udev events but this will cause boot problems once in a while.

Safer option is to try udev/module-init-tools/initscripts from Arch testing repository.
You need to know what are you doing and you need to remember that these packages are from testing.
The above should speed up default Arch boot time. On system tweaked already this will not have much of impact on boot time.

on HP laptop with SATA 5400RPM/1GB RAM I am getting 21-23s with Arch/KDE and custom kernel 2.6.24-zen4.
Of course faster disk better timing. Of course booting to cli would be much faster.

In general kernel and linux software tend to slow down but distros put extra glue to slow things down even more. Wed, 12 Mar 2008 15:43:00 GMT donotreply@osnews.com (broch) Comments http://osnews.com/thread?304745 http://osnews.com/thread?304745 With "UDEV autodetect" I meant "UDEV events". Thanks for the correct term and the additional information.

It is no problem to disable this and have a working boot:
# Scan hardware and load required modules at bootup
MOD_AUTOLOAD="no" Wed, 12 Mar 2008 17:49:00 GMT donotreply@osnews.com (Ford Prefect) Comments http://osnews.com/thread?304799 http://osnews.com/thread?304799 that is not udev events.
I meant this "trick"
status "Loading UDev uevents" /etc/start_udev uevents &

disabling unused modules will fix the problem only partially Wed, 12 Mar 2008 23:24:00 GMT donotreply@osnews.com (broch) Comments http://osnews.com/thread?304905 http://osnews.com/thread?304905 I read about ext4 implementation in Fedora 9, wouldn't that affect boot up time, stability, operation performance of various apps. Just wanted to know about changes in performance we can expect from ext4 file system.Edited 2008-03-13 17:00 UTC Thu, 13 Mar 2008 16:59:00 GMT donotreply@osnews.com (vikramsharma) Comments