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authorTony Luck <tony.luck@intel.com>2024-06-28 14:56:19 -0700
committerBorislav Petkov (AMD) <bp@alien8.de>2024-07-02 20:03:19 +0200
commitea34999f41873c96ac89e861e5fdfc7d0403f9e3 (patch)
tree89e0bbd14626ce1f0ddc3183a16d779db8aa0a16 /tools/perf/scripts/python/export-to-postgresql.py
parentx86/resctrl: Detect Sub-NUMA Cluster (SNC) mode (diff)
downloadlinux-rng-ea34999f41873c96ac89e861e5fdfc7d0403f9e3.tar.xz
linux-rng-ea34999f41873c96ac89e861e5fdfc7d0403f9e3.zip
x86/resctrl: Update documentation with Sub-NUMA cluster changes
With Sub-NUMA Cluster (SNC) mode enabled, the scope of monitoring resources is per-NODE instead of per-L3 cache. Backwards compatibility is maintained by providing files in the mon_L3_XX directories that sum event counts for all SNC nodes sharing an L3 cache. New files provide per-SNC node event counts. Users should be aware that SNC mode also affects the amount of L3 cache available for allocation within each SNC node. Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Link: https://lore.kernel.org/r/20240628215619.76401-20-tony.luck@intel.com
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