Ubuntu's performance : how to speed up ?

[Vincent Trouilliez]

Salut Jérôme,

Thanks for the links, it's all very interesting. Looks like I will go
down this route then, to speed up Ubuntu, bags of RAM, a couple modern
IDE drives, in RAID, using a motherboard that uses this ich5 Intel
controller.
According to the article, it's all very new stuff. So I will wait a year
or so before buying, the time for Ubuntu/linux to be bug free on these
systems, and of course, the time for prices of the boards/CPU/disks to
be cut by half, as I am nowhere rich enough to but such expensive
motherboards, plus a P4 CPU, plus the RAM, plus 2 disks, brand new.

In the meantime, I will print your mail and put it in a safe
place... :-)


Vince



> I can confirm and more !!!
> 
> on my mobo (Asus P4C800-E Deluxe), I have one promise chipset
> which can handle RAID-0, RAID-1, RAID-0+1 and MultiRAID and
> one intel chipset ICH5R which can handle RAID-0 and RAID-1.
> 
> Using RAID-0 on the intel ICH5R have several interesting points :
> - speed of RAID-0 stripping
> - low cpu utilization (3% against 10-20% for the promise)
> - more BUS bandwith as the intel chipset is directly on
> the southbridge and the promise chipset is on the PCI
> bus (you gain twice the BW of PCI BUS which is around
> 120-133 Mbits/s)
> - No PCI sharing with other PCI cards like Network card.
> 
> A must and worth the price !!
> 
> some interesting URL :
> HOWTO raid0 : http://www.techsupportforum.com/showthread.php?t=12119
> HOWTO raid-ready (one disk) : http://www.techsupportforum.com/showthread.php?s=&threadid=9888&forumid=87
> 
> promise vs ich5r : http://www.xbitlabs.com/articles/mainboards/print/msi-875p-neo.html
> "IDE RAID: Intel vs. Promise"
> 
> perf ich5r/nf3/via : http://www.tbreak.com/reviews/article.php?cat=storage&id=291&pagenumber=3