Seq read performance with Intel X25V SSD

idata — Mon, 06 Sep 2010 12:06:41 GMT

Hi,

I am trying to measure the seq 100%read performance of Intel X25V SSD on linux machine. Issue that I see here is that I am getting different IOPS with different states of the disk i.e consider the below two cases

1) erase the disk -> run rand 100%write -> seq 100% read

2) erase the disk -> run seq 100% write -> seq 100% read

IOPS are different in both the above cases (varying by 5K to 6K). Same behaviour is seen even with seq read done after some seq/rand writes.

Is this behavriour due to wear-leveling done in SSD ? If yes, what is the best way to capture seq 100% read performance ?

(OR)

Am I missing anything in setup ?

Thank you in advance.

Thanks & Regards,

Ramu

Re: Seq read performance with Intel X25V SSD

idata — Tue, 07 Sep 2010 10:08:26 GMT

http://communities.intel.com/thread/14928?tstart=30

topic Re: Seq read performance with Intel X25V SSD in Archive

Seq read performance with Intel X25V SSD

Re: Seq read performance with Intel X25V SSD