SD card image should be aligned to 4MB
Bug #1024389 reported by
Pali
This bug affects 3 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Raspbian |
Opinion
|
Undecided
|
Unassigned |
Bug Description
For optimizing performance of SD cards all partitions should begins at position N * 4MB (where N is integer). This is because of typical size of SD card chip erase block is 4MB. Standard partition utilities (like fdisk, gparted) auto align partitions to 1MB.
Now first partition of Raspbian image from http://
See also:
https:/
https:/
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I think this is fairly important as without proper alignment pages will go across block boundaries and give a performance hit. (you get several write operations when just one would be needed)
Fixing it might give a good performance boost. (someone willing to benchmark?)