-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 04-11-10 19:26, Holger Freyther wrote: > On 11/04/2010 10:52 AM, Eric Bénard wrote: >> this is a RFC, I think it can also be used on qt 4.6.x and on armv7. >> Setting QT_ARCH to armv6 enable some asm optimized functions in QT. > > Do you know the consequences of this change? E.g. in the painting > engine unaligned memory access will be allowed. I am not sure that Nokia has > ever benchmarked what is faster (aligned/unaligned) access. So it would be > very interesting to know the perf difference. E.g. use qttracereply to > measure it. > > Phil do you happen to know why unaligned access got allowed starting from > armv6? How fast will it be?
- From previous experiments the "hardware" unaligned was the same speed as the sw fixup on armv6. regards, Koen -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) iD8DBQFM0yAhMkyGM64RGpERAo+KAKCLzq/F9/dH/viPTMDWqpIRcv5k8QCgjoAG BU6Ps9W+NUB0nSNOA/yT1hw= =TT6S -----END PGP SIGNATURE----- _______________________________________________ Openembedded-devel mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel
