So any clues for the intel 320 series? I think it doesn't use compression. On Sun, Jul 10, 2011 at 10:59 PM, Fajar A. Nugraha <list@xxxxxxxxx> wrote: > On Mon, Jul 11, 2011 at 3:58 AM, Leonidas Spyropoulos > <artafinde@xxxxxxxxx> wrote: >> On Sun, Jul 10, 2011 at 9:33 AM, Chris Samuel <chris@xxxxxxxxxxx> wrote: >>> On Sun, 3 Jul 2011 05:45:17 AM Calvin Walton wrote: >>> This LWN article from 2009 explains why it can be problematic >>> (especially on SATA drives where TRIM is a non-queued command): >>> >>> https://lwn.net/Articles/347511/ >>> >> So the current problem with TRIM in ATA (and SATA) is that it >> introduce delays? As long as it keeps your SSD in a good shape it's >> still better than not having TRIM at all, right? > > Not quite. > > Sandforce-based SSDs have their own way of reducing writes (e.g. by > using internal compression), so you don't have to do anything special. > Also, AFAIK currently TRIM is useless if the drives are behind a > hardware raid controller anyway. > > My Corsair F60 (on a notebook) is actually MUCH SLOWER with -o discard > (i.e. writes capped at 100 iops) > > -- > Fajar > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Caution: breathing may be hazardous to your health. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
