Paul Mackerras wrote: > Dominik Bozek writes: > > >> Actually I made couple of other tests on that mpc8313. Most of them are >> to ugly to publish them, but... My problem is that I have to boost the >> gigabit interface on the mpc8313. I made simple substitution and >> __copy_tofrom_user was used instead of memcpy. I know, it's wrong, but I >> speedup that way the network interface for about 10%. >> > > Very interesting. Can you work out where memcpy is being called on > the network data? I wouldn't have expected that. >
I'm not the fastest, but I will. Just need some time. > There is actually no strong reason not to use __copy_tofrom_user as > memcpy, in fact, as long as we are sure that source and destination > are both cacheable. > My board doesn't have graphics, sound,... so I don't know if and how it touch that subsystems, but for sure ext2 fail. Interesting because it was a ramdisk. Remember, that it was very tricky test, don't make any wrong conclusion out of it. Dominik _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
