Andrew Morton <[EMAIL PROTECTED]> writes: > Why does the kernel need this feature? > > Have you any numbers on the overhead?
It does RDTSC and lots of complicated stuff twice for each system call. On P4 this will be extremly slow (> 1000cycles combined) It is pretty unlikely that whatever it does justifies this extreme overhead in a critical fast path. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
