On Tue, 9 Jul 2002, Paul Sladen wrote: >>> RTC is still more accurate, but on the other hand, you don't need root >>> privileges to take advantage of the 1kHz ticks! > Kernel space only; userspace is still at 100Hz on x86
Not a problem. Timing sensitive user-space apps benefit from this change because with 1kHz ticks, kernel will be making scheduling decisions much more often. AFAIK, keeping the user-space visible HZ-value as 100Hz is more of a convenience feature (ie. it's possible to change the kernel HZ value without the need to recompile glibc and some user-space apps like top). In other words user-space apps will get full benefit of the higher tick frequency even though the user-space exported HZ is set to 100. -- http://www.eca.cx Audio software for Linux!
