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idata
Community Manager
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Seq read performance with Intel X25V SSD

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

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idata
Community Manager
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