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On Mon, 2005-06-20 at 23:54 -0700, Andrew Morton wrote: > CONFIG_HZ for x86 and ia64: changes default HZ to 250, make HZ > Kconfigurable. > > Will merge (will switch default to 1000 Hz later if that seems > necessary) How about delaying this until the high res timers patches are ready? That way you can save power and avoid the latency regression, in fact it would be a huge improvement from user POV. Consider a program with a 5ms RT constraint, like a game or mplayer. Currently it uses the RTC on 2.4/HZ=100 systems and usleep() on 2.6/HZ=1000. Allowing HZ to regress to 250 would force us to handle 2.4, 2.6.1 - 2.6.12, and 2.6.13+ separately. It would be a huge mess. Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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