Reserve contiguous space in memory with NSMutableData

https://stackoverflow.com/questions/17598833

cocoa-touch
nsdata
memory-layout
nsmutabledata

02-06-2022
|

Frage

How can I force NSMutableData to reserve contiguous memory, in the same section? I have a fair amout of data arriving piece by piece, and the performance is not satisfactory. The total size of my data will be constant.

Lösung

NSMutableData should store all data contiguously. Internally it is using a "stretchy" buffer resized with realloc. You can create with [NSMutableData dataWithLength:];

Why not use an NSData if the size is constant?

Also why are you worrying about NSMutableData performance. Did instruments profile show a performance problem?

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