On Thu, 2007-08-02 at 18:21 +0100, Mel Gorman wrote: > The NUMA layer only supports NUMA policies for the highest zone. When > ZONE_MOVABLE is configured with kernelcore=, the the highest zone becomes > ZONE_MOVABLE. The result is that policies are only applied to allocations > like anonymous pages and page cache allocated from ZONE_MOVABLE when the > zone is used. > > This patch applies policies to the two highest zones when the highest zone > is ZONE_MOVABLE. As ZONE_MOVABLE consists of pages from the highest "real" > zone, it's always functionally equivalent. > > The patch has been tested on a variety of machines both NUMA and non-NUMA > covering x86, x86_64 and ppc64. No abnormal results were seen in kernbench, > tbench, dbench or hackbench. It passes regression tests from the numactl > package with and without kernelcore= once numactl tests are patched to > wait for vmstat counters to update. > > Signed-off-by: Mel Gorman <[EMAIL PROTECTED]>
And an ia_64 NUMA platform with some ad hoc, interactive functional testing with memtoy and an overnight run of a usex job mix. Job mix included a 32-way kernel build, several povray tracing apps, IO tests, sequential and random vm fault tests and a number of 'bin' tests that simulate a half a dozen crazed monkeys pounding away at keyboards entering surprisingly error-free commands. All of these loop until stopped or the system hangs/crashes--which it didn't... Acked-by: Lee Schermerhorn <[EMAIL PROTECTED]> Tested-by: Lee Schermerhorn <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
