A question regarding memory copy

A question regarding memory copy

bigbearking's picture

I made a mistake so it's not really a question.

Message Edited by bigbearking on 09-20-2005 12:50 PM

3 posts / 0 new
Last post
For more complete information about compiler optimizations, see our Optimization Notice.
Community Admin's picture

Could you please show the two assembly fragments that you timed?

bigbearking's picture

Sorry that I made a mistake.

I just double-checked my program and data. It seems that I copied my program's read phase timings to the wrong place in excel. The fact is: copy: 3.5 cycles/element, read: 1.1 cycles/element, write:3.4 cycles/element. This is explanable since some writing overhead can be hidden by write buffers.

It seems that I need to further look into why my reading phase gets 5 cycles per element but the copy program is OK.

Thank abik for the quick reponse.

Login to leave a comment.