sony-vaio-z-series team mailing list archive

["K. Posern" <quickhelp@xxxxxxxxx>]

Hi Joel,

Thanks for the report.

I ca add though:

If you use mdadm instead dmraid to access your NATIVE fakeraid (without
a linux software raid) you get actually the same results :)

hdparm -tT /dev/md0

/dev/md126:
 Timing cached reads:   9010 MB in  2.00 seconds = 4506.74 MB/sec
 Timing buffered disk reads: 1498 MB in  3.00 seconds = 498.81 MB/sec

And a little side remark:

For all I know: mdadm is also favored by intel going forward over dmraid
- but ubuntu still favors dmraid by default (I think).

Best,

Knuth

On 12/02/2010 12:42 PM, Joël Bourquard wrote:
> Actually I think buffered reads are the same, it's just some measurement
> variance that we see here :-)
> 
> I noticed a major improvement when launching huge apps (firefox,
> evolution, OpenOffice) for the first time, and of course when copying files.
> 
> Other than that, the general speed of the system was already very high -
> so it's difficult to rule out the placebo effect. But it's certainly not
> running any slower than before, far from it! And numbers are consistent.
> 
> Best regards,
> 
> Joël
> 
> --
> Sent from my Android phone.
> Please excuse my brevity.
> 
> On Dec 2, 2010 6:31 PM, "Simon Brown" <lists@xxxxxxxx
> <mailto:lists@xxxxxxxx>> wrote:
> 
> 
> 
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