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2026-02-18Merge tag 'turbostat-2026.02.14-AMD-RAPL-fix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 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
2026-02-17tools/power turbostat: Fix AMD RAPL regressionLen Brown
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>
2026-02-17Merge tag 'turbostat-2026.02.14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 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 ...
2026-02-13tools/power turbostat: version 2026.02.14Len Brown
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>
2026-02-13tools/power turbostat: Fix and document --header_iterationsLen Brown
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>
2026-02-13tools/power turbostat: Use strtoul() for iteration parsingKaushlendra Kumar
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>
2026-02-13tools/power turbostat: Favor cpu# over core#Len Brown
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>
2026-02-13tools/power turbostat: Expunge logical_cpu_idLen Brown
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>
2026-02-13tools/power turbostat: Enhance HT enumerationLen Brown
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>
2026-02-13tools/power turbostat: Simplify global core_id calculationLen Brown
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>
2026-02-13tools/power turbostat: Unify even/odd/average counter referencingLen Brown
Update the syntax of accesses to the even and odd counters to match the average counters. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-13tools/power turbostat: Allocate average counters dynamicallyLen Brown
The current static definition of average{} is inconsistent with the dynamically allocated even{} and odd{} counters. Allocate average{} counters dynamically. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-13tools/power turbostat: Delete core_data.core_idLen Brown
Delete redundant core_data.core_id. Use cpus[].core_id as the single copy of the truth. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-13tools/power turbostat: Rename physical_core_id to core_idLen Brown
The Linux Kernel topology sysfs is flawed. core_id is not globally unique, but is per-package. Turbostat works around this when it needs to, with rapl_core_id = cpus[cpu].core_id; rapl_core_id += cpus[cpu].package_id * nr_cores_per_package Otherwise, turbostat handles core_id as subservient to each package. As there is only one core_id namespace, rename physical_core_id to simply be core_id. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-13tools/power turbostat: Cleanup package_idLen Brown
The kernel topology sysfs uses the name "physical_package_id" because it is allowed to be sparse. Inside Turbostat, that physical package_id namespace is the only package_id namespace, so re-name it to simply be "package_id" in cpus[]. Delete the redundant copy of package_id in pkg_data. Rely instead on the single copy of the truth in cpus[]. No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-13tools/power turbostat: Cleanup internal use of "base_cpu"Len Brown
Disambiguate the uses "base_cpu": master_cpu: lowest permitted cpu#, read global MSRs here package_data.first_cpu: lowest permitted cpu# in that package core_data.first_cpu: lowest permitted cpu# in the core current_cpu: where I'm running now No functional change. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-13tools/power turbostat: Add L2 cache statisticsLen Brown
version 2026.02.04 Add support for L2 cache statistics: L2MRPS and L2%hit L2 statistics join the LLC in the "cache" counter group. While the underlying LLC perf kernel support was architectural, L2 perf counters are model-specific: Support Intel Xeon -- Sapphire Rapids and newer. Support Intel Atom -- Gracemont and newer. Support Intel Hybrid -- Alder Lake and newer. Example: alder-lake-n$ sudo turbostat --quiet --show CPU,Busy%,cache my_workload CPU Busy% LLCMRPS LLC%hit L2MRPS L2%hit - 49.82 1210 85.02 2909 31.63 0 99.14 322 88.89 767 32.38 1 0.91 1 32.47 1 18.86 2 0.20 0 40.78 0 23.34 3 99.17 295 81.79 706 31.89 4 0.68 1 58.71 1 15.61 5 99.16 299 85.65 726 31.32 6 0.08 0 45.35 0 31.71 7 99.21 293 83.63 707 30.92 where "my_workload" is a wrapper for a yogini workload that has 4 fully-busy threads with 2MB working set each. Note that analogous to the system summary for multiple LLC systems, the system summary row for the L2 is the aggregate of all CPUS in the system -- there is no per-cache roll-up. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-04tools/power turbostat: Remove redundant newlines from err(3) stringsLen Brown
err(3) supplies a newline at the end of the string. No need to end err(3) strings with '\n'. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-04tools/power turbostat: Allow more use of is_hybrid flagLen Brown
The "is_hybrid" is set and used only in !quiet mode. Make it valid in both quiet and !quiet mode to allow more uses. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-04tools/power turbostat: Rename "LLCkRPS" column to "LLCMRPS"Len Brown
The purpose of the LLC References per Second LLC column is to qualify the significance of the LLC%hit column. If RPS is high, then the hit rate matters. If RPS is low, then the hit rate is not significant. Remove unnecessary and distracting precision in the RPS column by dividing my a million rather than by a thousand. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-04tools/power turbostat.8: Document the "--force" optionLen Brown
Starting in turbostat v2025.01.14, turbostat refused to run on unsupported hardware, pointing to "RUN THE LATEST VERSION" on turbostat(8). At that time, turbostat supported and advertised the "--force" parameter to run anyway (with unsupported results). Also document "--force" on turbostat.8. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-04tools/power turbostat: Harden against unexpected valuesLen Brown
Divide-by-zero resulted if LLC references == 0 Pull the percentage division into pct() to centralize sanity checks there. Fixes: 8808292799b0 ("tools/power turbostat: Print "nan" for out of range percentages") Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-04tools/power turbostat: Dump hypervisor nameLen Brown
Sometimes useful to know which hypervisor is running beneath us... Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-04tools/power turbostat: Dump CPUID.1.ECX[31] (Hypervisor)Len Brown
Both Intel and AMD use CPUID.1.ECX[31] to distinguish between hypervisor and real hardware. Indicate "HV" or "No-HV" accordingly. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-04tools/power turbostat: Dump CPUID(1) consistently with CPUID(6)Len Brown
We dumped selected CPUID(1) features using a format that showed '-' for a missing feature. Not so friendly to parse a bunch of dashes when features are missing... For CPUID(1) adopt the format we used for CPUID(6): 'No-FEATURE' means that 'FEATURE' is not present. Signed-off-by: Len Brown <len.brown@intel.com>
2026-02-04tools/power turbostat: AMD: msr offset 0x611 read failed: Input/output errorLen Brown
Turbostat exits during RAPL probe with: turbostat: cpu0: msr offset 0x611 read failed: Input/output error A binary with this bug can be used successfully with the option "--no-msr" Fix this regression by trusting the static AMD RAPL MSR offset. Fixes: 19476a592bf2 ("tools/power turbostat: Validate RAPL MSRs for AWS Nitro Hypervisor") Signed-off-by: Len Brown <len.brown@intel.com>
2026-01-16tools/power/x86/intel-speed-select: v1.25 releaseSrinivas Pandruvada
This version includes the following changes: - Allow read only commands for non root users when permitted - Fix file descriptor leak in isolate_cpus() - Replace hardcoded libnl3 include path Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
2026-01-16tools/power/x86/intel-speed-select: Fix file descriptor leak in isolate_cpus()Malaya Kumar Rout
The file descriptor opened in isolate_cpus() when (!level) is true was not being closed before returning, causing a file descriptor leak in both the error path and the success path. When write() fails at line 950, the function returns at line 953 without closing the file descriptor. Similarly, on success, the function returns at line 956 without closing the file descriptor. Add close(fd) calls before both return statements to fix the resource leak. This follows the same pattern used elsewhere in the same function where file descriptors are properly closed before returning (see lines 1005 and 1027). Fixes: 997074df658e ("tools/power/x86/intel-speed-select: Use cgroup v2 isolation") Signed-off-by: Malaya Kumar Rout <mrout@redhat.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
2026-01-16tools/power/x86/intel-speed-select: Use pkg-config for libnl-3.0 detectionKhem Raj
Replace hardcoded libnl3 include path with pkg-config detection to improve portability across different distributions and build environments. The previous implementation used a fixed path constructed from the compiler's sysroot, which could fail on systems with non-standard library installations. Now the build system: - Attempts to detect libnl-3.0 include paths using pkg-config - Falls back to /usr/include/libnl3 if pkg-config is unavailable - Maintains backward compatibility with existing build configurations This ensures the tool builds correctly on a wider range of systems while preserving existing behavior when pkg-config is not present. Closes:https://bugzilla.kernel.org/show_bug.cgi?id=220819 Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
2026-01-16tools/power/x86/intel-speed-select: Allow non root usersSrinivas Pandruvada
When permitted by the file /dev/isst_interface, allow to issue commands for non root users. When user id is non root, check if "/dev/isst_interface" can still be opened. If this file can be opened, allow all read only commands. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
2025-12-10Merge tag 'platform-drivers-x86-v6.19-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Ilpo Järvinen: - acer-wmi: Add PH16-72, PHN16-72, and PT14-51 fan control support - acpi: platform_profile: Add max-power profile option (power draw limited by the cooling hardware, may exceed battery power draw limit when on AC power) - amd/hsmp: Allow more than one data-fabric per socket - asus-armoury: Add WMI attributes driver to expose miscellaneous WMI functions through fw_attributes (deprecates the custom BIOS features interface through asus-wmi) - asus-wmi: Use brightness_set_blocking() for kbd led - ayaneo-ec: Add Ayaneo Embedded Controller driver - fs/nls: - Fix utf16 to utf8 string conversion when output size restricted - Improve error code consistency for utf8 to utf32 conversions - ideapad-laptop: Fast (Rapid Charge) charge type support - intel/hid: Add Dell Pro Rugged 10/12 tablet to VGBS DMI quirks - intel/pmc: - Arrow Lake telemetry GUID improvements - Add support for Wildcat Lake PMC information - intel_pmc_ipc: Fix ACPI buffer memleak - intel/punit_ipc: Fix memory corruption - intel/vsec: Wildcat Lake PMT telemetry support - lenovo-wmi-gamezone: Map "Extreme" performance mode to max-power - lg-laptop: Add support for the HDAP opregion field - serial-multi-instantiate: Add IRQ_RESOURCE_OPT for IRQ missing projects - thinkpad-t14s-ec: Improve suspend/resume support (lid LEDs, keyboard backlight) - uniwill: Add Uniwill laptop driver - wmi: Move under drivers/platform/wmi as non-x86 WMI support is around the corner and other WMI features will require adding more C files as well - tools/power/x86/intel-speed-select: v1.24 - Check feature status to check if the feature enablement was successful - Reset SST-TF bucket structure to display valid bucket info - Miscellaneous cleanups / refactoring / improvements * tag 'platform-drivers-x86-v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (73 commits) tools/power/x86/intel-speed-select: v1.24 release tools/power/x86/intel-speed-select: Reset isst_turbo_freq_info for invalid buckets tools/power/x86/intel-speed-select: Check feature status platform/x86: asus-wmi: use brightness_set_blocking() for kbd led fs/nls: Fix inconsistency between utf8_to_utf32() and utf32_to_utf8() platform/x86: asus-armoury: add support for GA503QR platform/x86: intel_pmc_ipc: fix ACPI buffer memory leak platform/x86: hp-wmi: Order DMI board name arrays platform/x86/intel/hid: Add Dell Pro Rugged 10/12 tablet to VGBS DMI quirks platform: surface: replace use of system_wq with system_percpu_wq platform: x86: replace use of system_wq with system_percpu_wq platform/surface: acpi-notify: add WQ_PERCPU to alloc_workqueue users platform/x86: wmi-gamezone: Add Legion Go 2 Quirks platform/x86: lenovo-wmi-gamezone Use max-power rather than balanced-performance acpi: platform_profile - Add max-power profile option platform/x86/amd/pmf: Use devm_mutex_init() for mutex initialization platform/x86/amd/pmf: Add BIOS_INPUTS_MAX macro to replace hardcoded array size platform/x86: serial-multi-instantiate: Add IRQ_RESOURCE_OPT for IRQ missing projects platform/x86/amd/pmf: Refactor repetitive BIOS output handling platform/x86/uniwill: Add TUXEDO devices ...
2025-12-03tools/power/x86/intel-speed-select: v1.24 releaseSrinivas Pandruvada
This version includes the following changes: - Check feature status to check if the feature enablement was successful - Reset SST-TF bucket structure to display valid bucket info Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
2025-12-03tools/power/x86/intel-speed-select: Reset isst_turbo_freq_info for invalid ↵Srinivas Pandruvada
buckets With SST-TF version 2 only 3 buckets are present. The information in others buckets can be junk. So initialize the info structure of type isst_turbo_freq_info, before issing ioctl to get bucket information. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
2025-12-03tools/power/x86/intel-speed-select: Check feature statusSrinivas Pandruvada
After change of enable/disable status of SST-CP, SST-TF and SST-BF check if the hardware status change was successful. If not successful even after retries, return failure. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
2025-12-02tools/power turbostat: version 2025.12.02Len Brown
Since release 2025.09.09: Add LLC statistics columns: LLCkRPS = Last Level Cache Thousands of References Per Second LLC%hit = Last Level Cache Hit % Recognize Wildcat Lake and Nova Lake platforms Add MSR check for Android Add APERF check for VMWARE Add RAPL check for AWS minor fixes This patch: White-space only, resulting from running Lindent on everything except the tab-justified data-tables, and using -l150 instead of -l80 to allow long lines. Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power turbostat: Print wide names only for RAW 64-bit columnsLen Brown
Print a wide column header only for the case of a 64-bit RAW counter. It turns out that wide column headers otherwise are more harm than good. Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power turbostat: Print percentages in 8-columnsLen Brown
Added counters that are FORMAT_PERCENT do not need to be 64-bits -- 32 is plenty. This allows the output code to fit them, and their header, into 8-columns. Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power turbostat: Print "nan" for out of range percentagesLen Brown
Sometimes counters return junk. For the cases where values > 100% is invalid, print "nan". Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power turbostat: Validate APERF access for VMWARELen Brown
VMWARE correctly enumerates lack of APERF and MPERF in CPUID, but turbostat didn't consult that before attempting to access them. Since VMWARE allows access, but always returns 0, turbostat got confusd into an infinite reset loop. Head this off by listening to CPUID.6.APERF_MPERF (and rename the existing variable to make this more clear) Reported-by: David Arcari <darcari@redhat.com> Tested-by: David Arcari <darcari@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power turbostat: Enhance perf probeLen Brown
check_perf_access() will now check both IPC and LLC perf counters if they are enabled. If any fail, it now disables perf and all perf counters. Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power turbostat: Validate RAPL MSRs for AWS Nitro HypervisorLen Brown
Even though the platform->plat_rapl_msrs enumeration may be accurate, a VM, such as AWS Nitro Hypervisor, may deny access to the underlying MSRs. Probe if PKG_ENERGY is readable and non-zero. If no, ignore all RAPL MSRs. Reported-by: Emily Ehlert <ehemily@amazon.de> Tested-by: Emily Ehlert <ehemily@amazon.de> Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power x86_energy_perf_policy: Fix potential NULL pointer dereferenceMalaya Kumar Rout
In err_on_hypervisor(), strstr() is called to search for "flags" in the buffer, but the return value is not checked before being used in pointer arithmetic (flags - buffer). If strstr() returns NULL because "flags" is not found in /proc/cpuinfo, this will cause undefined behavior and likely a crash. Add a NULL check after the strstr() call and handle the error appropriately by cleaning up resources and reporting a meaningful error message. Signed-off-by: Malaya Kumar Rout <mrout@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power x86_energy_perf_policy: Fix format string in error messageMalaya Kumar Rout
The error message in validate_cpu_selected_set() uses an incomplete format specifier "cpu%" instead of "cpu%d", resulting in the error message printing "Requested cpu% is not present" rather than showing the actual CPU number. Fix the format string to properly display the CPU number. Signed-off-by: Malaya Kumar Rout <mrout@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power x86_energy_perf_policy: Simplify Android MSR probeLen Brown
no functional change Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power x86_energy_perf_policy: Add Android MSR device supportKaushlendra Kumar
Add support for Android MSR device paths which use /dev/msrN format instead of the standard Linux /dev/cpu/N/msr format. The tool now probes both path formats at startup and uses the appropriate one. This enables x86_energy_perf_policy to work on Android systems where MSR devices follow a different naming convention while maintaining full compatibility with standard Linux systems. Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power turbostat: Add run-time MSR driver probeLen Brown
Rather than starting down the conditional-compile road... Probe the location of the MSR files at run-time. Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power turbostat: Set per_cpu_msr_sum to NULL after freeEmily Ehlert
Set per_cpu_msr_sum to NULL after freeing it in the error path of msr_sum_record() to prevent potential use-after-free issues. Signed-off-by: Emily Ehlert <ehemily@amazon.com> Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02tools/power turbostat: Add LLC statsLen Brown
LLCkRPS = Last Level Cache Thousands of References Per Second LLC%hit = Last Level Cache Hit % These columns are enabled by-default. They can be controlled with the --show/--hide options by individual column names above, or together using the "llc" or "cache" groups. Signed-off-by: Len Brown <len.brown@intel.com>
2025-10-24tools/power turbostat: Remove dead codeLen Brown
amperf_group_fd is never used. Signed-off-by: Len Brown <len.brown@intel.com>
2025-10-24tools/power turbostat: Refactor floating point printout codeLen Brown
Too many copies of (usually) the same printf code... Also, unify code for added-counter FORMAT_AVERAGE, which was correct where it was tested, but neglected elsewhere. Signed-off-by: Len Brown <len.brown@intel.com>
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