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authorChristoph Lameter <clameter@sgi.com>2006-04-13 18:23:53 -0700
committerTony Luck <tony.luck@intel.com>2006-04-21 10:57:40 -0700
commite5ecc192dfc5e0b325dd8c99ce4c755714c9acbf (patch)
tree04b1d9d8936727a5b7dec4ee912b5509853cfec6 /drivers/Kconfig
parenta72391e42f0a13116995045b3d492d660f96697d (diff)
downloadlinux-e5ecc192dfc5e0b325dd8c99ce4c755714c9acbf.tar.bz2
[IA64] Setup an IA64 specific reclaim distance
RECLAIM_DISTANCE is checked on bootup against the SLIT table distances. Zone reclaim is important for system that have higher latencies but not for systems that have multiple nodes on one motherboard and therefore low latencies. We found that on motherboard latencies are typically 1 to 1.4 of local memory access speed whereas multinode systems which benefit from zone reclaim have usually more than 1.5 times the latency of a local access. Set the reclaim distance for IA64 to 1.5 times. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
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