Hi People!

Can anyone tell me, if I make more partitions rather than creating single one, will I get more data access performance?

E.g Instead of keeping 1,5TB partition, create
5x300MB and keep different data in different partitions?

Logically hard drive will spend less time on finding data in smaller partition then in bigger one, right? Is there any statistics for performance vs size?


Thanks,
Aram

Why?
It would definitely be true for tape. But disk is organised differently, especially with modern filesystems.

Then it does not make sense to divide data partition to several ones in terms of performance?

Wrong, just wrong. This is a complex subject with a number of factors and you have seized on a single one. probably the single most serious one that you are ignoring is that one of the serious slow downs on a disk is the need for the read head to 'stroke' from one place to another, and in spreading the data around several partitions, you are increasing the length of those strokes in many cases (of course, if you use case makes primarily accesses to /home, which would be unusual, and you have a relatively compact /home partition, then this would help).

I think you will find that more partitions on the same drive will degrade performance.

Hi All,
Thanks for the answers!

Aram

Shouldn't make any difference either way.
The I/O schedulers manage the physical I/O - they only care about blocks addresses, and are indifferent to partitioning.

Separate partitions have other attractions, but absolute performance is unlikely to be a factor in a "normal" user setup.