Hi, the current alsa driver uses ioctl for read and write pcm data. while writing the 32 -> 64 bit ioctl wrapper, i found that there might be difference between ioctl and read/write wrt the performance on SMP. sys_ioctl() calls a global lock_kernel() during ioctl operation, while read and write don't. i'm not sure whether/how this affects. did anybody investigate this already?
Takashi _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
