[fpc-devel] Patch, font rendering on Arm-Linux devices.
JeLlyFish.software at gmx.net
Thu Feb 28 09:45:41 CET 2008
On Thursday 28 February 2008 09:16, Daniël Mantione wrote:
> Memory access. What happens is that the non-packed version causes
> more cache misses.
Please elaborate. If the (unaligned) data is crossing a cache-line, thus
causing two full cache-line reads, I'd understand that, but once it's
in the cache, it wouldn't matter anymore?
IOW: How can a packed (thus smaller) record cause more cache misses than
a better aligned (but bigger) one? That it can in certain
circumstances, I'd understand, but as a general rule?
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