On Tue Nov 10, 2009 at 07:01:02PM +0300, Majed B. wrote:
> Which disks can provide 2ms response with a read of 250 MB/s and write
> of 170 MB/s other than SSDs?!
>
> Are you saying that it doesn't matter whether we use Linux or Windows
> with SSDs because the limitation is coming from the disk's controller
> itself?
>
Not exactly - without TRIM support, the drive performance will degrade
over time. Windows 7 has TRIM implemented for deletes (and formats),
which prevents this degradation. Initial performance will be the same
on both systems though (as performance is limited by the interface -
SATA 6G is starting to appear though, which will definitely help).
Currently, AFAIK, none of the Linux filesystems support TRIM. This is
largely due to discussions about the implementation - a TRIM call
requires a full flush of all pending writes (as it's a non-queueable
call) which results in severe performance issues if done synchronously
on deletes.
HTH,
Robin
--
___
( ' } | Robin Hill <robin@xxxxxxxxxxxxxxx> |
/ / ) | Little Jim says .... |
// !! | "He fallen in de water !!" |
Attachment:
pgpnbnh2YWvI7.pgp
Description: PGP signature
