Re: [Lse-tech] Re: [RFC][PATCH] 2.6.0-test11 sched_clock() broken for "drifty ITC"

[John H. <ha...@go...>]

> [ Martin Bligh writes: ]
> Is there any harm in dropping the first part of your patch, ie.
...
> > diff -X /home/hawkes/Patches/ignore.dirs -Naur linux-2.6.0/arch/i386/kernel/timers/timer_tsc.c linux-2.6.0-schedclock2/arch/i386/kernel/timers/timer_tsc.c
...
> and leaving the rest of it? the CONFIG_NUMA affects both NUMA-Q and Summit,
> BTW, which uses the cyclone timer, so it gets even more complex ;-)

No, no harm.  Leaving out that timer_tsc.c part means only that i386
CONFIG_NUMA continues to use "jiffies" as the timebase, which is a
low-resolution timebase and may affect the quality of some of the
interactive scheduling decisions.

John Hawkes