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authorDapeng Mi <dapeng1.mi@linux.intel.com>2026-09-17 09:52:33 +0800
committerIngo Molnar <mingo@kernel.org>2026-09-22 11:37:46 +0200
commit0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch)
tree531306c2299f9a269f0a986e29f17ba972180104 /Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage
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perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy Offcore Response events, but it still exposes the inherited offcore_rsp PMU attribute for programming the corresponding MSR data. Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface matches the underlying event name and avoids user & tooling confusion. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
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+What: /sys/kernel/mm/transparent_hugepage/
+Date: April 2024
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description:
+ /sys/kernel/mm/transparent_hugepage/ contains a number of files and
+ subdirectories,
+
+ - defrag
+ - enabled
+ - hpage_pmd_size
+ - khugepaged
+ - shmem_enabled
+ - use_zero_page
+ - subdirectories of the form hugepages-<size>kB, where <size>
+ is the page size of the hugepages supported by the kernel/CPU
+ combination.
+
+ See Documentation/admin-guide/mm/transhuge.rst for details.