Giovanni Bajo <rasky@xxxxxxxxxxx> writes: > On 12/7/2007 6:23 PM, Linus Torvalds wrote: > > >> Is SHA a significant portion of the compute during these repacks? > >> I should run oprofile... > > SHA1 is almost totally insignificant on x86. It hardly shows up. But > > we have a good optimized version there. > > zlib tends to be a lot more noticeable (especially the > > *uncompression*: it may be faster than compression, but it's done _so_ > > much more that it totally dominates). > > Have you considered alternatives, like: > http://www.oberhumer.com/opensource/ucl/ <quote> As compared to LZO, the UCL algorithms achieve a better compression ratio but *decompression* is a little bit slower. See below for some rough timings. </quote> It is uncompression speed that is more important, because it is used much more often. -- Jakub Narebski ShadeHawk on #git - To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
