[kwlug-disc] SSDs and TRIM

Richard Weait richard at weait.com
Fri Apr 30 15:43:45 EDT 2010


On Thu, Apr 29, 2010 at 11:28 PM, Chris Irwin <chris at chrisirwin.ca> wrote:
> On Thu, 2010-04-29 at 18:18 -0400, Lori Paniak wrote:

>> Having TRIM operating in conjunction with GC apparently does get you a
>> few more points of performance back after disk ops.  See for example:
>>
>> http://www.oczenterprise.com/whitepapers/ssds-write-amplification-trim-and-gc.pdf
>
> This is a pretty informative paper. Thanks for this.
>

If TRIM and blocks vs. pages isn't enough to worry about, have a look
at 4KB sectors and aligned partitions.
http://www.ibm.com/developerworks/linux/library/l-4kb-sector-disks/index.html?ca=dgr-lnxw074KB-Disksdth-LX



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