Changes in stat+csv_summary.sh

cb9f145f638d7afa633632a9290d6ad06caeb8ee - Merge remote-tracking branch 'drm/drm-next' into msm-next-robclark

Sat, 01 Nov 2025 12:47:30 +0000

Merge remote-tracking branch 'drm/drm-next' into msm-next-robclarkBack-merge drm-next to get caught up.Signed-off-by: Rob Clark List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

8b87f67b4c87452e21721887fa8dec1f4c6b2b7c - Merge branch 'next' into for-linus

Wed, 08 Oct 2025 04:53:13 +0000

Merge branch 'next' into for-linusPrepare input updates for 6.18 merge window. List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

d325efac5938efa3c2a25df72a1bd1af16cd0ed8 - Merge branch 'for-6.18/core' into for-linus

Tue, 30 Sep 2025 14:31:10 +0000

Merge branch 'for-6.18/core' into for-linus- allow HID-BPF to rebind a driver to hid-multitouch (Benjamin Tissoires)- Change hid_driver to use a const char* for .name (Rahul Rameshbabu) List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

71b28769d708f20046fc6f853cf93fb88a8b6e11 - Merge remote-tracking branch 'origin' into for-6.18/intel-thc-hid

Fri, 19 Sep 2025 15:08:20 +0000

Merge remote-tracking branch 'origin' into for-6.18/intel-thc-hidNeeded as a basisi for followup support for quicki2c advanced BIOS features.Signed-off-by: Jiri Kosina List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

f088104d837a991c65e51fa30bb4196169b3244d - Merge drm/drm-next into drm-intel-gt-next

Tue, 16 Sep 2025 10:53:20 +0000

Merge drm/drm-next into drm-intel-gt-nextBackmerge in order to get the commit: 048832a3f400 ("drm/i915: Refactor shmem_pwrite() to use kiocb and write_iter")To drm-intel-gt-next as there are followup fixes to be applied.Signed-off-by: Joonas Lahtinen List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

b4d90dbc4c1bc4bd3eb2d2989330af0eb95c98e8 - Merge drm/drm-next into drm-misc-next-fixes

Mon, 15 Sep 2025 08:23:28 +0000

Merge drm/drm-next into drm-misc-next-fixesBackmerging to drm-misc-next-fixes to get features and fixes fromv6.17-rc6.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

702fdf3513b045f596f836d9a4b8672c76f11834 - Merge drm/drm-next into drm-intel-next

Wed, 10 Sep 2025 12:01:42 +0000

Merge drm/drm-next into drm-intel-nextCatching up with some display dependencies.Signed-off-by: Rodrigo Vivi List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

4b051897df2375414587a245ecb9bb1a4d26b3b8 - Merge tag 'v6.17-rc2' into HEAD

Thu, 21 Aug 2025 18:46:49 +0000

Merge tag 'v6.17-rc2' into HEADSync up with mainline to bring in changes to include/linux/sprintf.h List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

ca994e8922f25f7fed2075098f185cf198109eaa - Merge drm/drm-next into drm-xe-next

Tue, 12 Aug 2025 12:58:37 +0000

Merge drm/drm-next into drm-xe-nextBring v6.17-rc1 to propagate commits from other subsystems, particularlyPCI, which has some new functions needed for SR-IOV integration.Signed-off-by: Lucas De Marchi List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

8d2b0853add1d7534dc0794e3c8e0b9e8c4ec640 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 11 Aug 2025 14:49:06 +0000

Merge drm/drm-fixes into drm-misc-fixesUpdating drm-misc-fixes to the state of v6.17-rc1. Begins a new releasecycle.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

08c51f5bddc81c8c97c1eb11861b0dc009e5ccd8 - Merge drm/drm-next into drm-misc-n

Mon, 11 Aug 2025 12:37:45 +0000

Merge drm/drm-next into drm-misc-nUpdating drm-misc-next to the state of v6.17-rc1. Begins a new releasecycle.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

a53d0cf7f1cb3182ad533ff5cacfa5fd29c419ad - Merge commit 'linus' into core/bugs, to resolve conflicts

Tue, 05 Aug 2025 09:15:34 +0000

Merge commit 'linus' into core/bugs, to resolve conflictsResolve conflicts with this commit that was developed in parallelduring the merge window: 8c8efa93db68 ("x86/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust") Conflicts: arch/riscv/include/asm/bug.h arch/x86/include/asm/bug.hSigned-off-by: Ingo Molnar List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

f4f346c3465949ebba80c6cc52cd8d2eeaa545fd - Merge tag 'perf-tools-for-v6.17-2025-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Fri, 01 Aug 2025 23:55:47 +0000

Merge tag 'perf-tools-for-v6.17-2025-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-toolsPull perf tools updates from Namhyung Kim: "Build-ID processing goodies: Build-IDs are content based hashes to link regions of memory to ELF files in post processing. They have been available in distros for quite a while: $ file /bin/bash /bin/bash: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=707a1c670cd72f8e55ffedfbe94ea98901b7ce3a, for GNU/Linux 3.2.0, stripped It is possible to ask the kernel to get it from mmap executable backing storage at time they are being put in place and send it as metadata at that moment to have in perf.data. Prefer that across the board to speed up 'record' time - it post processes the samples to find binaries touched by any samples and to save them with build-ID. It can skip reading build-ID in userspace if it comes from the kernel. perf record: * Make --buildid-mmap default. The kernel can generate MMAP2 events with a build-ID from ELF header. Use that by default instead of using inode and device ID to identify binaries. It also can be disabled with --no-buildid-mmap. * Use BPF for -u/--uid option to sample processes belong to a user. BPF can track user processes more accurately and the existing logic often fails to get the list of processes due to race with reading the /proc filesystem. * Generate PERF_RECORD_BPF_METADATA when it profiles BPF programs and they have variables starting with "bpf_metadata_". This will help to identify BPF objects used in the profile. This has been supported in bpftool for some time and allows the recording of metadata such as commit hashes, versions, etc, that now gets recorded in perf.data as well. * Collect list of DSOs touched in the sample callchains as well as in the sample itself. This would increase the processing time at the end of record, but can improve the data quality. perf stat: * Add a new 'drm' pseudo-PMU support like in 'hwmon'. It can collect DRM usage stats using fdinfo in /proc. On my Intel laptop, it shows like below: $ perf list drm ... drm: drm-active-stolen-system0 [Total memory active in one or more engines. Unit: drm_i915] drm-active-system0 [Total memory active in one or more engines. Unit: drm_i915] drm-engine-capacity-video [Engine capacity. Unit: drm_i915] drm-engine-copy [Utilization in ns. Unit: drm_i915] drm-engine-render [Utilization in ns. Unit: drm_i915] drm-engine-video [Utilization in ns. Unit: drm_i915] ... $ sudo perf stat -a -e drm-engine-render,drm-engine-video,drm-engine-capacity-video sleep 1 Performance counter stats for 'system wide': 48,137,316,988,873 ns drm-engine-render 34,452,696,746 ns drm-engine-video 20 capacity drm-engine-capacity-video 1.002086194 seconds time elapsed perf list * Add description for software events. The description is in JSON format and the event parser now can handle the software events like others (for example, it's case-insensitive and subject to wildcard matching). $ perf list software List of pre-defined events (to be used in -e or -M): software: alignment-faults [Number of kernel handled memory alignment faults. Unit: software] bpf-output [An event used by BPF programs to write to the perf ring buffer. Unit: software] cgroup-switches [Number of context switches to a task in a different cgroup. Unit: software] context-switches [Number of context switches [This event is an alias of cs]. Unit: software] cpu-clock [Per-CPU high-resolution timer based event. Unit: software] cpu-migrations [Number of times a process has migrated to a new CPU [This event is an alias of migrations]. Unit: software] cs [Number of context switches [This event is an alias of context-switches]. Unit: software] dummy [A placeholder event that doesn't count anything. Unit: software] emulation-faults [Number of kernel handled unimplemented instruction faults handled through emulation. Unit: software] faults [Number of page faults [This event is an alias of page-faults]. Unit: software] major-faults [Number of major page faults. Major faults require I/O to handle. Unit: software] migrations [Number of times a process has migrated to a new CPU [This event is an alias of cpu-migrations]. Unit: software] minor-faults [Number of minor page faults. Minor faults don't require I/O to handle. Unit: software] page-faults [Number of page faults [This event is an alias of faults]. Unit: software] task-clock [Per-task high-resolution timer based event. Unit: software] perf ftrace: * Add -e/--events option to perf ftrace latency to measure latency between the two events instead of a function. $ sudo perf ftrace latency -ab -e i915_request_wait_begin,i915_request_wait_end --hide-empty -- sleep 1 # DURATION | COUNT | GRAPH | 256 - 512 us | 4 | ###### | 2 - 4 ms | 2 | ### | 4 - 8 ms | 12 | ################### | 8 - 16 ms | 10 | ################ | # statistics (in usec) total time: 194915 avg time: 6961 max time: 12855 min time: 373 count: 28 * Add new function graph tracer options (--graph-opts) to display more info like arguments and return value. They will be passed to the kernel ftrace directly. $ sudo perf ftrace -G vfs_write --graph-opts retval,retaddr # tracer: function_graph # # CPU DURATION FUNCTION CALLS # | | | | | | | ... 5) | mutex_unlock() { /* <-rb_simple_write+0xda/0x150 */ 5) 0.188 us | local_clock(); /* <-lock_release+0x2ad/0x440 ret=0x3bf2a3cf90e */ 5) | rt_mutex_slowunlock() { /* <-rb_simple_write+0xda/0x150 */ 5) | _raw_spin_lock_irqsave() { /* <-rt_mutex_slowunlock+0x4f/0x200 */ 5) 0.123 us | preempt_count_add(); /* <-_raw_spin_lock_irqsave+0x23/0x90 ret=0x0 */ 5) 0.128 us | local_clock(); /* <-__lock_acquire.isra.0+0x17a/0x740 ret=0x3bf2a3cfc8b */ 5) 0.086 us | do_raw_spin_trylock(); /* <-_raw_spin_lock_irqsave+0x4a/0x90 ret=0x1 */ 5) 0.845 us | } /* _raw_spin_lock_irqsave ret=0x292 */ ... Misc: * Add perf archive --exclude-buildids option to skip some binaries. The format of the FILE should be same as an output of perf buildid-list. * Get rid of dependency of libcrypto. It was just to get SHA-1 hash so implement it directly like in the kernel. A side effect is that it needs -fno-strict-aliasing compiler option (again, like in the kernel). * Convert all shell script tests to use bash"* tag 'perf-tools-for-v6.17-2025-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (179 commits) perf record: Cache build-ID of hit DSOs only perf test: Ensure lock contention using pipe mode perf python: Stop using deprecated PyUnicode_AsString() perf list: Skip ABI PMUs when printing pmu values perf list: Remove tracepoint printing code perf tp_pmu: Add event APIs perf tp_pmu: Factor existing tracepoint logic to new file perf parse-events: Remove non-json software events perf jevents: Add common software event json perf tools: Remove libtraceevent in .gitignore perf test: Fix comment ordering perf sort: Use perf_env to set arch sort keys and header perf test: Move PERF_SAMPLE_WEIGHT_STRUCT parsing to common test perf sample: Remove arch notion of sample parsing perf env: Remove global perf_env perf trace: Avoid global perf_env with evsel__env perf auxtrace: Pass perf_env from session through to mmap read perf machine: Explicitly pass in host perf_env perf bench synthesize: Avoid use of global perf_env perf top: Make perf_env locally scoped ... List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

2f5d370dec3f800b44bbf7b68875d521e0af43cd - perf test: Change all remaining #!/bin/sh to #!/bin/bash

Mon, 23 Jun 2025 09:00:12 +0000

perf test: Change all remaining #!/bin/sh to #!/bin/bashThere are 43 instances of posix shell tests and 35 instances of bash. Togive us a single consistent language for testing in, replaceall #!/bin/sh to #!/bin/bash. Common sources that are included in bothdifferent shells will now work as expected. And we no longer have to fixup bashisms that appear to work when someone's system has sh symlinkedto bash, but don't work on other systems that have both shellsinstalled.Although we could have chosen sh, it's not backwards compatible so itwouldn't be possible to bulk convert without re-writing the existingbash tests.Choosing bash also gives us some nicer features including 'local'variable definitions and regexes in if statements that are alreadywidely used in the tests.It's not expected that there are any users with only sh available due tothe large number of bash tests that exist.Discussed in relation to running shellcheck here:https://lore.kernel.org/linux-perf-users/e3751a74be34bbf3781c4644f518702a7270220b.1749785642.git.collin.funk1@gmail.com/Signed-off-by: James Clark Reviewed-by: Collin Funk Acked-by: Arnaldo Carvalho de Melo Link: https://lore.kernel.org/r/20250623-james-perf-bash-tests-v1-1-f572f54d4559@linaro.orgSigned-off-by: Namhyung Kim List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

a23e1966932464e1c5226cb9ac4ce1d5fc10ba22 - Merge branch 'next' into for-linus

Mon, 15 Jul 2024 21:03:44 +0000

Merge branch 'next' into for-linusPrepare input updates for 6.11 merge window. List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

6f47c7ae8c7afaf9ad291d39f0d3974f191a7946 - Merge tag 'v6.9' into next

Tue, 28 May 2024 04:37:18 +0000

Merge tag 'v6.9' into nextSync up with the mainline to bring in the new cleanup API. List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

60a2f25de7b8b785baee2932db932ae9a5b8c86d - Merge drm/drm-next into drm-intel-gt-next

Thu, 16 May 2024 07:33:01 +0000

Merge drm/drm-next into drm-intel-gt-nextSome display refactoring patches are needed in order to allow conflict-less merging.Signed-off-by: Tvrtko Ursulin List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

03c11eb3b16dc0058589751dfd91f254be2be613 - Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Wed, 14 Feb 2024 09:45:07 +0000

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branchConflicts: arch/x86/include/asm/percpu.h arch/x86/include/asm/text-patching.hSigned-off-by: Ingo Molnar List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

0ea5c948cb64bab5bc7a5516774eb8536f05aa0d - Merge drm/drm-next into drm-intel-next

Mon, 15 Jan 2024 07:38:05 +0000

Merge drm/drm-next into drm-intel-nextBackmerge to bring Xe driver to drm-intel-next.Signed-off-by: Jani Nikula List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh

6b93f350e55f3f2ee071dd41109d936abfba8ebf - Merge branch 'for-6.8/amd-sfh' into for-linus

Mon, 08 Jan 2024 19:57:04 +0000

Merge branch 'for-6.8/amd-sfh' into for-linus- addition of new interfaces to export User presence information and Ambient light from amd-sfh to other drivers within the kernel (Basavaraj Natikar) List of files: /linux/tools/perf/tests/shell/stat+csv_summary.sh