Date: Sun, 05 Sep 2010 18:46:40 +0300 From: Alexander Motin <mav@FreeBSD.org> To: freebsd-ppc@freebsd.org, Nathan Whitehorn <nwhitehorn@freebsd.org> Subject: [RFC] Event timers on PowerPC Message-ID: <4C83BB60.6050400@FreeBSD.org>
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Hi. I have refactored PowerPC event timers code to use new event timers infrastructure. I have successfully tested it on PowerMac G4 and compiled for MPC85XX. Patch for HEAD can be found here: http://people.freebsd.org/~mav/timers_powerpc.patch With few additional lines: http://people.freebsd.org/~mav/timers_powerpc2.patch this patch successfully utilizes dynamic ticks mode of my latest one-shot timers patch: http://people.freebsd.org/~mav/timers_oneshot8.patch , generating only about 50 interrupts per second in idle. With my old Motorola PowerPC 7400 CPU I haven't noticed any thermal difference, though it would be interesting to try it on faster/consumptive CPUs. Comments and reviews welcome. -- Alexander Motin
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