Hosts the 0x221E linux distro kernel. https://git.0xinfinity.dev/distro/kernel.git/atom?h=master 2026-02-18T17:52:38Z 2026-02-18T17:52:38Z Linus Torvalds 2026-02-18T17:52:38Z urn:sha1:7ad54bbbc9c512ba3bc90e4368264bcf15c25759 Pull turbostat fix from Len Brown: "Fix a recent AMD regression due to errant code cleanup" * tag 'turbostat-2026.02.14-AMD-RAPL-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: Fix AMD RAPL regression 2026-02-18T05:27:52Z Len Brown 2026-02-18T02:31:51Z urn:sha1:ef0e60083f768b32cda17b1b0ca9519405db89a6 turbostat.c:8688: rapl_perf_init: Assertion `next_domain < num_domains' failed. Two recent cleanup patches that were not supposed to change anything broke the core_id code needed for AMD RAPL initialization: commit 070e92361eec ("tools/power turbostat: Enhance HT enumeration") commit ddf60e38ca04 ("tools/power turbostat: Simplify global core_id calculation") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com> 2026-02-17T23:51:14Z Linus Torvalds 2026-02-17T23:51:14Z urn:sha1:2961f841b025fb234860bac26dfb7fa7cb0fb122 Pull turbostat updates from Len Brown: - Add L2 statistics columns for recent Intel processors: L2MRPS = L2 Cache M-References Per Second L2%hit = L2 Cache Hit % - Sort work and output by cpu# rather than core# - Minor features and fixes * tag 'turbostat-2026.02.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (23 commits) tools/power turbostat: version 2026.02.14 tools/power turbostat: Fix and document --header_iterations tools/power turbostat: Use strtoul() for iteration parsing tools/power turbostat: Favor cpu# over core# tools/power turbostat: Expunge logical_cpu_id tools/power turbostat: Enhance HT enumeration tools/power turbostat: Simplify global core_id calculation tools/power turbostat: Unify even/odd/average counter referencing tools/power turbostat: Allocate average counters dynamically tools/power turbostat: Delete core_data.core_id tools/power turbostat: Rename physical_core_id to core_id tools/power turbostat: Cleanup package_id tools/power turbostat: Cleanup internal use of "base_cpu" tools/power turbostat: Add L2 cache statistics tools/power turbostat: Remove redundant newlines from err(3) strings tools/power turbostat: Allow more use of is_hybrid flag tools/power turbostat: Rename "LLCkRPS" column to "LLCMRPS" tools/power turbostat.8: Document the "--force" option tools/power turbostat: Harden against unexpected values tools/power turbostat: Dump hypervisor name ... 2026-02-13T20:08:33Z Len Brown 2026-02-13T19:38:02Z urn:sha1:51496091dd37b405e6e399a9638da3f1da3f4c64 Since release 2025.12.02: Add L2 statistics columns for recent Intel processors: L2MRPS = L2 Cache M-References Per Second L2%hit = L2 Cache Hit % Sort work and output by cpu# rather than core# This commit: Version number and white space (indent -l160) No functional change. Signed-off-by: Len Brown <len.brown@intel.com> 2026-02-13T20:03:17Z Len Brown 2026-02-13T19:26:12Z urn:sha1:96718ad296af4a6d984b3a09276b165ab6a3b0c8 The "header_iterations" option is commonly used to de-clutter the screen of redundant header label rows in an interactive session: Eg. every 10 rows: $ sudo turbostat --header_iterations 10 -S -q -i 1 But --header_iterations was missing from turbostat.8 Also turbostat help advertised the "-N" short option that did not actually work: $ turbostat --help -N, --header_iterations num print header every num iterations Repair "-N" Document "--header_iterations" on turbostat.8 Signed-off-by: Len Brown <len.brown@intel.com> 2026-02-13T20:03:17Z Kaushlendra Kumar 2025-12-08T03:08:04Z urn:sha1:8e5c0cc326f2e95a71bb6e6063e65caa60c8f951 Replace strtod() with strtoul() and check errno for -n/-N options, since num_iterations and header_iterations are unsigned long counters. Reject zero and conversion errors; negative inputs wrap to large positive values per standard unsigned semantics. Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> 2026-02-13T20:03:10Z Len Brown 2026-02-12T20:04:25Z urn:sha1:a2b4d0f8bf07a4a4fe8a526e10c45e593c7a3bf0 Turbostat collects statistics and outputs results in "topology order", which means it prioritizes the core# over the cpu#. The strategy is to minimize wakesups to a core -- which is important when measuring an idle system. But core order is problematic, because Linux core#'s are physical (within each package), and thus subject to APIC-id scrambling that may be done by the hardware or the BIOS. As a result users may be are faced with rows in a confusing order: sudo turbostat -q --show topology,Busy%,CPU%c6,UncMHz sleep 1 Core CPU Busy% CPU%c6 UncMHz - - 1.25 72.18 3400 0 4 7.74 0.00 1 5 1.77 88.59 2 6 0.48 96.73 3 7 0.21 98.34 4 8 0.14 96.85 5 9 0.26 97.55 6 10 0.44 97.24 7 11 0.12 96.18 8 0 5.41 0.31 3400 8 1 0.19 12 2 0.41 0.22 12 3 0.08 32 12 0.04 99.21 33 13 0.25 94.92 Abandon the legacy "core# topology order" in favor of simply ordering by cpu#, with a special case to handle HT siblings that may not have adjacent cpu#'s. sudo ./turbostat -q --show topology,Busy%,CPU%c6,UncMHz sleep 1 1.003001 sec Core CPU Busy% CPU%c6 UncMHz - - 1.38 80.55 1600 8 0 10.94 0.00 1600 8 1 0.53 12 2 2.90 0.45 12 3 0.11 0 4 1.96 91.20 1 5 0.97 96.40 2 6 0.24 94.72 3 7 0.31 98.01 4 8 0.20 98.20 5 9 0.62 96.00 6 10 0.06 98.15 7 11 0.12 99.31 32 12 0.04 99.07 33 13 0.27 95.09 The result is that cpu#'s now take precedence over core#'s. Signed-off-by: Len Brown <len.brown@intel.com> 2026-02-13T14:53:17Z Len Brown 2026-02-13T05:52:02Z urn:sha1:6be5c151eb1ebf4d5007b9f60c729f7381255a23 There is only once cpu_id name space -- cpu_id. Expunge the term logical_cpu_id. No functional change. Signed-off-by: Len Brown <len.brown@intel.com> 2026-02-13T14:53:17Z Len Brown 2026-02-13T05:31:02Z urn:sha1:070e92361eeca21407ce90b582698a877ece5694 Record the cpu_id of each CPU HT sibling -- will need this later. Rename "thread_id" to "ht_id" to disambiguate that the scope of this id is within a Core -- it is not a global cpu_id. No functional change. Signed-off-by: Len Brown <len.brown@intel.com> 2026-02-13T14:53:17Z Len Brown 2026-02-13T05:06:47Z urn:sha1:ddf60e38ca048842a34eb6e9d7a0d3e7d459df8d Standardize the generation of globally unique core_id's in a macro, and simplify the related code. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>