[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
Re: malloc, thread and alignment
On Fri, Mar 27, 2015 at 04:46:51PM +0000, Emmanuel Dreyfus wrote:
> > Someone^TM should document the kernel CACHE_LINE_SIZE, coherency_unit,
> > COHERENCY_UNIT, and figure out what it is worthwhile to expose MI to
> > userland.
> Shouldn't malloc take care of that stuff, and enforce a minimal allocation
> size based on hardware requirement? e.g.: you request one byte, malloc
> allocates a chunk of 32 bytes.
It does, for hard alignment requirements. Allocating only whole cache
lines doesn't seem remotely desirable.
David A. Holland
Main Index |
Thread Index |