Re: How is user space notified of CPU speed changes?

From: Chris Friesen
Date: Fri Oct 22 2004 - 14:53:32 EST


Lee Revell wrote:

Seems like you are implying that any userspace app that needs to know
the CPU speed is broken. Is this correct?

No, we're saying that Intel's tsc implementation is broken. <grin>

x86 really could use an on-die register that increments at 1GHz independent of clock speed and is synchronized across all CPUs in an SMP box.

Chris
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/