On 10/27/10, Rich Shepard <[email protected]> wrote:
> Does it matter what partition is formatted as swap on a drive? On my new
> hard drive I've made 3 partitions, and think I should redo it because I made
> /dev/sda1 the swap, /dev/sda2 will be /, and /dev/sda3 will be /tmp. I'm
> thinking I should repartition so the sequence is /, swap, /tmp.
>
> Thoughts?
>
> Rich
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Hi
I copied this from Wikipedia
* "Short Stroking", which aims to minimize performance-eating head
repositioning delays by reducing the number of tracks used per hard
drive.[1] The basic idea is that you make one partition approx.
20-25% of the total size of the drive. This partition is expected to:
occupy the outer tracks of the hard drive, and offer more than double
the throughput — less than half the access time. If you limit capacity
with short stroking, the minimum throughput stays much closer to the
maximum.
* For example a 1 TB disk might have an access time of 12 ms
at 200 IOPS (at a limited queue depth) with an average throughput of
100 MB/s. When it is partitioned to 100 GB (and the rest left
unallocated) you might end up with an access time of 6 ms at 300 IOPS
(with a bigger queue depth) with an average throughput of 200 MB/s..
Good luck
Marvin
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