On 17.02.2010, at 10:42, OHMURA Kei wrote: >>>> "We think"? I mean - yes, I think so too. But have you actually measured it? >>>> How much improvement are we talking here? >>>> Is it still faster when a bswap is involved? >>> Thanks for pointing out. >>> I will post the data for x86 later. >>> However, I don't have a test environment to check the impact of bswap. >>> Would you please measure the run time between the following section if possible? >> It'd make more sense to have a real stand alone test program, no? >> I can try to write one today, but I have some really nasty important bugs to fix first. > > > OK. I will prepare a test code with sample data. Since I found a ppc machine around, I will run the code and post the results of > x86 and ppc. > > > By the way, the following data is a result of x86 measured in QEMU/KVM. > This data shows, how many times the function is called (#called), runtime of original function(orig.), runtime of this patch(patch), speedup ratio (ratio). That does indeed look promising! Thanks for doing this micro-benchmark. I just want to be 100% sure that it doesn't affect performance for big endian badly. Alex-- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
