Re: hard disk performance on Allnet 6500 (like Thecus N2100)
* Riku Voipio <firstname.lastname@example.org> [2007-09-24 23:48]:
> Did you enable the dma engine in kernel config? There is three patches
> that could help:
I'm glad your email caused me to double check. While the dma engine
itself was enabled, some other options were missing. With the
following options enabled, my performance goes to:
Timing cached reads: 382 MB in 2.01 seconds = 190.16 MB/sec
Timing buffered disk reads: 144 MB in 3.03 seconds = 47.59 MB/sec
I'll ask Dan Williams of Intel about the status of these patches.
If we're really lucky, maybe they'll be in the kernel that will be used
for the "etch+0.5" update (i.e. a new 2.6.2x based kernel for etch).
If not, we can make a n2100 repository somewhere with a kernel that
has the dma engine patches.