Comments on: SSD performance vs Linux kernel I/O scheduler in Fedora 10 http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/ Random rants and tips about Fedora, CentOS, Maemo and other things I care about Mon, 22 Feb 2010 11:33:18 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: BennY- http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-13049 BennY- Fri, 19 Feb 2010 11:38:33 +0000 http://www.alphatek.info/?p=287#comment-13049 YFI: real 7m29.790s user 6m28.216s sys 0m54.395s [noop] anticipatory deadline cfq real 7m17.363s user 6m23.140s sys 0m53.655s noop anticipatory deadline [cfq] testet with x25m-g2 ssd on kernel 2.6.31-gentoo-r6 YFI:

real 7m29.790s
user 6m28.216s
sys 0m54.395s
[noop] anticipatory deadline cfq

real 7m17.363s
user 6m23.140s
sys 0m53.655s
noop anticipatory deadline [cfq]

testet with x25m-g2 ssd on kernel 2.6.31-gentoo-r6

]]> By: Steven http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-8093 Steven Mon, 28 Sep 2009 12:45:43 +0000 http://www.alphatek.info/?p=287#comment-8093 There is little hope about Samsung SSD's...they are OEM units so it's better not to hope for any update :p There is little hope about Samsung SSD’s…they are OEM units so it’s better not to hope for any update :p

]]> By: Edward http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-8079 Edward Mon, 28 Sep 2009 06:05:19 +0000 http://www.alphatek.info/?p=287#comment-8079 Good day, I am running AuroraUX/OpenSolaris on my X301 and was wondering if there is a FW upgrade around for the SSD to get better IO out of it? I ask as Intel and a few others have released new FW and was wondering if Samsung have also? The only page I found was: http://www.samsung.com/global/business/semiconductor/productInfo.do?fmly_id=161&partnum=MMCQE28G8MUP#component03 Regards, Edward. Good day,

I am running AuroraUX/OpenSolaris on my X301 and was wondering if there is a FW upgrade around for the SSD to get better IO out of it?

I ask as Intel and a few others have released new FW and was wondering if Samsung have also?

The only page I found was:
http://www.samsung.com/global/business/semiconductor/productInfo.do?fmly_id=161&partnum=MMCQE28G8MUP#component03

Regards,
Edward.

]]> By: Mathieu SCHROETER http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-3652 Mathieu SCHROETER Tue, 03 Feb 2009 09:22:17 +0000 http://www.alphatek.info/?p=287#comment-3652 Ok je n'avais pas lu correctement.. en fait tu compiles sur le disque SSD pour ton bench.. oublie ma 2eme remarques alors.. :) Ok je n’avais pas lu correctement.. en fait tu compiles sur le disque SSD pour ton bench.. oublie ma 2eme remarques alors.. :)

]]> By: Mathieu SCHROETER http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-3651 Mathieu SCHROETER Tue, 03 Feb 2009 09:14:31 +0000 http://www.alphatek.info/?p=287#comment-3651 A noter qu'en compilant tous les i/o scheduler dans le kernel, il est facile de changer de sched io à la volée pour chaque device. http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.28.y.git;a=blob;f=Documentation/block/switching-sched.txt;h=634c952e19648b6e5474ff938208852a89a254cb;hb=HEAD Et le temps de compilation IHMO on s'en fout dès le moment qu'on peut switcher à chaud.. quitte à compiler au moins ces deux sched et de les utiliser a bon escient. A noter qu’en compilant tous les i/o scheduler dans le kernel, il est facile de changer de sched io à la volée pour chaque device.

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.28.y.git;a=blob;f=Documentation/block/switching-sched.txt;h=634c952e19648b6e5474ff938208852a89a254cb;hb=HEAD

Et le temps de compilation IHMO on s’en fout dès le moment qu’on peut switcher à chaud.. quitte à compiler au moins ces deux sched et de les utiliser a bon escient.

]]> By: Steven http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-3645 Steven Mon, 02 Feb 2009 22:24:34 +0000 http://www.alphatek.info/?p=287#comment-3645 The results are actually quite surprising, more to come in another blogpost tomorrow :) The results are actually quite surprising, more to come in another blogpost tomorrow :)

]]> By: Steven http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-3643 Steven Mon, 02 Feb 2009 21:05:09 +0000 http://www.alphatek.info/?p=287#comment-3643 I'm re-running all the benchmarks with a simple make and with a -j 3 too, should be online in 1-2h. I’m re-running all the benchmarks with a simple make and with a -j 3 too, should be online in 1-2h.

]]> By: Dandu http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-3641 Dandu Mon, 02 Feb 2009 20:08:53 +0000 http://www.alphatek.info/?p=287#comment-3641 Bon, hop, demain matin sur Tom's Hardware ;) Bon, hop, demain matin sur Tom’s Hardware ;)

]]> By: newbie06 http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-3639 newbie06 Mon, 02 Feb 2009 19:30:48 +0000 http://www.alphatek.info/?p=287#comment-3639 Without using the multi core capacity of your computer, I'm afraid we only have one side of the coin. Could you please give make -j2 and -j3 a try? Without using the multi core capacity of your computer, I’m afraid we only have one side of the coin. Could you please give make -j2 and -j3 a try?

]]> By: Steven http://www.alphatek.info/2009/02/02/ssd-performance-vs-linux-kernel-io-scheduler-in-fedora-10/comment-page-1/#comment-3638 Steven Mon, 02 Feb 2009 17:17:25 +0000 http://www.alphatek.info/?p=287#comment-3638 T'es libre de tout voler la news :p T’es libre de tout voler la news :p

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