Hi Nick, > Hmm. If we execute this loop once, we'll only fetch additional nops. > Twice, and we make up for them by not fetching unused instructions. > More than twice and we may start winning. > > For large sizes it probably helps, but I'd like to see what sizes > memset sees.
I found this in a trace of nginx web serving. Looking back at it, get_empty_filp() zeros a struct file, and we go through the loop 4 times. We might want to look more generally at what lengths memset() is called with though. Anton
