OpenCloudOS-Kernel/tools/include/linux
Linus Torvalds 7b58b82b86 perf tools changes for v5.18: 1st batch
New features:
 
 perf ftrace:
 
 - Add -n/--use-nsec option to the 'latency' subcommand.
 
   Default: usecs:
 
   $ sudo perf ftrace latency -T dput -a sleep 1
   #   DURATION     |      COUNT | GRAPH                          |
        0 - 1    us |    2098375 | #############################  |
        1 - 2    us |         61 |                                |
        2 - 4    us |         33 |                                |
        4 - 8    us |         13 |                                |
        8 - 16   us |        124 |                                |
       16 - 32   us |        123 |                                |
       32 - 64   us |          1 |                                |
       64 - 128  us |          0 |                                |
      128 - 256  us |          1 |                                |
      256 - 512  us |          0 |                                |
 
   Better granularity with nsec:
 
   $ sudo perf ftrace latency -T dput -a -n sleep 1
   #   DURATION     |      COUNT | GRAPH                          |
        0 - 1    us |          0 |                                |
        1 - 2    ns |          0 |                                |
        2 - 4    ns |          0 |                                |
        4 - 8    ns |          0 |                                |
        8 - 16   ns |          0 |                                |
       16 - 32   ns |          0 |                                |
       32 - 64   ns |          0 |                                |
       64 - 128  ns |    1163434 | ##############                 |
      128 - 256  ns |     914102 | #############                  |
      256 - 512  ns |        884 |                                |
      512 - 1024 ns |        613 |                                |
        1 - 2    us |         31 |                                |
        2 - 4    us |         17 |                                |
        4 - 8    us |          7 |                                |
        8 - 16   us |        123 |                                |
       16 - 32   us |         83 |                                |
 
 perf lock:
 
 - Add -c/--combine-locks option to merge lock instances in the same class into
   a single entry.
 
   # perf lock report -c
                  Name acquired contended avg wait(ns) total wait(ns) max wait(ns) min wait(ns)
 
         rcu_read_lock   251225         0            0              0            0            0
    hrtimer_bases.lock    39450         0            0              0            0            0
   &sb->s_type->i_l...    10301         1          662            662          662          662
      ptlock_ptr(page)    10173         2          701           1402          760          642
   &(ei->i_block_re...     8732         0            0              0            0            0
          &xa->xa_lock     8088         0            0              0            0            0
           &base->lock     6705         0            0              0            0            0
           &p->pi_lock     5549         0            0              0            0            0
   &dentry->d_lockr...     5010         4         1274           5097         1844          789
             &ep->lock     3958         0            0              0            0            0
 
 - Add -F/--field option to customize the list of fields to output:
 
   $ perf lock report -F contended,wait_max -k avg_wait
                   Name contended max wait(ns) avg wait(ns)
 
         slock-AF_INET6         1        23543        23543
      &lruvec->lru_lock         5        18317        11254
         slock-AF_INET6         1        10379        10379
             rcu_node_1         1         2104         2104
    &dentry->d_lockr...         1         1844         1844
    &dentry->d_lockr...         1         1672         1672
       &newf->file_lock        15         2279         1025
    &dentry->d_lockr...         1          792          792
 
 - Add --synth=no option for record, as there is no need to symbolize,
   lock names comes from the tracepoints.
 
 perf record:
 
 - Threaded recording, opt-in, via the new --threads command line option.
 
 - Improve AMD IBS (Instruction-Based Sampling) error handling messages.
 
 perf script:
 
 - Add 'brstackinsnlen' field (use it with -F) for branch stacks.
 
 - Output branch sample type in 'perf script'.
 
 perf report:
 
 - Add "addr_from" and "addr_to" sort dimensions.
 
 - Print branch stack entry type in 'perf report --dump-raw-trace'
 
 - Fix symbolization for chrooted workloads.
 
 Hardware tracing:
 
 Intel PT:
 
 - Add CFE (Control Flow Event) and EVD (Event Data) packets support.
 
 - Add MODE.Exec IFLAG bit support.
 
 Explanation about these features from the "Intel® 64 and IA-32 architectures
 software developer’s manual combined volumes: 1, 2A, 2B, 2C, 2D, 3A, 3B, 3C,
 3D, and 4" PDF at:
 
   https://cdrdv2.intel.com/v1/dl/getContent/671200
 
 At page 3951:
 
 <quote>
 32.2.4
 
 Event Trace is a capability that exposes details about the asynchronous
 events, when they are generated, and when their corresponding software
 event handler completes execution. These include:
 
 o Interrupts, including NMI and SMI, including the interrupt vector when
 defined.
 
 o Faults, exceptions including the fault vector.
 
 — Page faults additionally include the page fault address, when in context.
 
 o Event handler returns, including IRET and RSM.
 
 o VM exits and VM entries.¹
 
 — VM exits include the values written to the “exit reason” and “exit qualification” VMCS fields.
 INIT and SIPI events.
 
 o TSX aborts, including the abort status returned for the RTM instructions.
 
 o Shutdown.
 
 Additionally, it provides indication of the status of the Interrupt Flag
 (IF), to indicate when interrupts are masked.
 </quote>
 
 ARM CoreSight:
 
 - Use advertised caps/min_interval as default sample_period on ARM spe.
 
 - Update deduction of TRCCONFIGR register for branch broadcast on ARM's CoreSight ETM.
 
 Vendor Events (JSON):
 
 Intel:
 
 - Update events and metrics for:
 
     Alderlake, Broadwell, Broadwell DE, BroadwellX, CascadelakeX, Elkhartlake,
     Bonnell, Goldmont, GoldmontPlus, Westmere EP-DP, Haswell, HaswellX,
     Icelake, IcelakeX, Ivybridge, Ivytown, Jaketown, Knights Landing,
     Nehalem EP, Sandybridge, Silvermont, Skylake, Skylake Server, SkylakeX,
     Tigerlake, TremontX, Westmere EP-SP, Westmere EX.
 
 ARM:
 
 - Add support for HiSilicon CPA PMU aliasing.
 
 perf stat:
 
 - Fix forked applications enablement of counters.
 
 - The 'slots' should only be printed on a different order than the one specified
   on the command line when 'topdown' events are present, fix it.
 
 Miscellaneous:
 
 - Sync msr-index, cpufeatures header files with the kernel sources.
 
 - Stop using some deprecated libbpf APIs in 'perf trace'.
 
 - Fix some spelling mistakes.
 
 - Refactor the maps pointers usage to pave the way for using refcount debugging.
 
 - Only offer the --tui option on perf top, report and annotate when perf was
   built with libslang.
 
 - Don't mention --to-ctf in 'perf data --help' when not linking with the required
   library, libbabeltrace.
 
 - Use ARRAY_SIZE() instead of ad hoc equivalent, spotted by array_size.cocci.
 
 - Enhance the matching of sub-commands abbreviations:
 	'perf c2c rec' -> 'perf c2c record'
 	'perf c2c recport -> error
 
 - Set build-id using build-id header on new mmap records.
 
 - Fix generation of 'perf --version' string.
 
 perf test:
 
 - Add test for the arm_spe event.
 
 - Add test to check unwinding using fame-pointer (fp) mode on arm64.
 
 - Make metric testing more robust in 'perf test'.
 
 - Add error message for unsupported branch stack cases.
 
 libperf:
 
 - Add API for allocating new thread map array.
 
 - Fix typo in perf_evlist__open() failure error messages in libperf tests.
 
 perf c2c:
 
 - Replace bitmap_weight() with bitmap_empty() where appropriate.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-for-v5.18-2022-03-26' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools updates from Arnaldo Carvalho de Melo:
 "New features:

  perf ftrace:

   - Add -n/--use-nsec option to the 'latency' subcommand.

     Default: usecs:

     $ sudo perf ftrace latency -T dput -a sleep 1
     #   DURATION     |      COUNT | GRAPH                          |
          0 - 1    us |    2098375 | #############################  |
          1 - 2    us |         61 |                                |
          2 - 4    us |         33 |                                |
          4 - 8    us |         13 |                                |
          8 - 16   us |        124 |                                |
         16 - 32   us |        123 |                                |
         32 - 64   us |          1 |                                |
         64 - 128  us |          0 |                                |
        128 - 256  us |          1 |                                |
        256 - 512  us |          0 |                                |

     Better granularity with nsec:

     $ sudo perf ftrace latency -T dput -a -n sleep 1
     #   DURATION     |      COUNT | GRAPH                          |
          0 - 1    us |          0 |                                |
          1 - 2    ns |          0 |                                |
          2 - 4    ns |          0 |                                |
          4 - 8    ns |          0 |                                |
          8 - 16   ns |          0 |                                |
         16 - 32   ns |          0 |                                |
         32 - 64   ns |          0 |                                |
         64 - 128  ns |    1163434 | ##############                 |
        128 - 256  ns |     914102 | #############                  |
        256 - 512  ns |        884 |                                |
        512 - 1024 ns |        613 |                                |
          1 - 2    us |         31 |                                |
          2 - 4    us |         17 |                                |
          4 - 8    us |          7 |                                |
          8 - 16   us |        123 |                                |
         16 - 32   us |         83 |                                |

  perf lock:

   - Add -c/--combine-locks option to merge lock instances in the same
     class into a single entry.

     # perf lock report -c
                    Name acquired contended avg wait(ns) total wait(ns) max wait(ns) min wait(ns)

           rcu_read_lock   251225         0            0              0            0            0
      hrtimer_bases.lock    39450         0            0              0            0            0
     &sb->s_type->i_l...    10301         1          662            662          662          662
        ptlock_ptr(page)    10173         2          701           1402          760          642
     &(ei->i_block_re...     8732         0            0              0            0            0
            &xa->xa_lock     8088         0            0              0            0            0
             &base->lock     6705         0            0              0            0            0
             &p->pi_lock     5549         0            0              0            0            0
     &dentry->d_lockr...     5010         4         1274           5097         1844          789
               &ep->lock     3958         0            0              0            0            0

      - Add -F/--field option to customize the list of fields to output:

     $ perf lock report -F contended,wait_max -k avg_wait
                     Name contended max wait(ns) avg wait(ns)

           slock-AF_INET6         1        23543        23543
        &lruvec->lru_lock         5        18317        11254
           slock-AF_INET6         1        10379        10379
               rcu_node_1         1         2104         2104
      &dentry->d_lockr...         1         1844         1844
      &dentry->d_lockr...         1         1672         1672
         &newf->file_lock        15         2279         1025
      &dentry->d_lockr...         1          792          792

   - Add --synth=no option for record, as there is no need to symbolize,
     lock names comes from the tracepoints.

  perf record:

   - Threaded recording, opt-in, via the new --threads command line
     option.

   - Improve AMD IBS (Instruction-Based Sampling) error handling
     messages.

  perf script:

   - Add 'brstackinsnlen' field (use it with -F) for branch stacks.

   - Output branch sample type in 'perf script'.

  perf report:

   - Add "addr_from" and "addr_to" sort dimensions.

   - Print branch stack entry type in 'perf report --dump-raw-trace'

   - Fix symbolization for chrooted workloads.

  Hardware tracing:

  Intel PT:

   - Add CFE (Control Flow Event) and EVD (Event Data) packets support.

   - Add MODE.Exec IFLAG bit support.

     Explanation about these features from the "Intel® 64 and IA-32
     architectures software developer’s manual combined volumes: 1, 2A,
     2B, 2C, 2D, 3A, 3B, 3C, 3D, and 4" PDF at:

        https://cdrdv2.intel.com/v1/dl/getContent/671200

     At page 3951:
      "32.2.4

       Event Trace is a capability that exposes details about the
       asynchronous events, when they are generated, and when their
       corresponding software event handler completes execution. These
       include:

        o Interrupts, including NMI and SMI, including the interrupt
          vector when defined.

        o Faults, exceptions including the fault vector.

           - Page faults additionally include the page fault address,
             when in context.

        o Event handler returns, including IRET and RSM.

        o VM exits and VM entries.¹

           - VM exits include the values written to the “exit reason”
             and “exit qualification” VMCS fields. INIT and SIPI events.

        o TSX aborts, including the abort status returned for the RTM
          instructions.

        o Shutdown.

       Additionally, it provides indication of the status of the
       Interrupt Flag (IF), to indicate when interrupts are masked"

  ARM CoreSight:

   - Use advertised caps/min_interval as default sample_period on ARM
     spe.

   - Update deduction of TRCCONFIGR register for branch broadcast on
     ARM's CoreSight ETM.

  Vendor Events (JSON):

  Intel:

   - Update events and metrics for: Alderlake, Broadwell, Broadwell DE,
     BroadwellX, CascadelakeX, Elkhartlake, Bonnell, Goldmont,
     GoldmontPlus, Westmere EP-DP, Haswell, HaswellX, Icelake, IcelakeX,
     Ivybridge, Ivytown, Jaketown, Knights Landing, Nehalem EP,
     Sandybridge, Silvermont, Skylake, Skylake Server, SkylakeX,
     Tigerlake, TremontX, Westmere EP-SP, and Westmere EX.

  ARM:

   - Add support for HiSilicon CPA PMU aliasing.

  perf stat:

   - Fix forked applications enablement of counters.

   - The 'slots' should only be printed on a different order than the
     one specified on the command line when 'topdown' events are
     present, fix it.

  Miscellaneous:

   - Sync msr-index, cpufeatures header files with the kernel sources.

   - Stop using some deprecated libbpf APIs in 'perf trace'.

   - Fix some spelling mistakes.

   - Refactor the maps pointers usage to pave the way for using refcount
     debugging.

   - Only offer the --tui option on perf top, report and annotate when
     perf was built with libslang.

   - Don't mention --to-ctf in 'perf data --help' when not linking with
     the required library, libbabeltrace.

   - Use ARRAY_SIZE() instead of ad hoc equivalent, spotted by
     array_size.cocci.

   - Enhance the matching of sub-commands abbreviations:
	'perf c2c rec' -> 'perf c2c record'
	'perf c2c recport -> error

   - Set build-id using build-id header on new mmap records.

   - Fix generation of 'perf --version' string.

  perf test:

   - Add test for the arm_spe event.

   - Add test to check unwinding using fame-pointer (fp) mode on arm64.

   - Make metric testing more robust in 'perf test'.

   - Add error message for unsupported branch stack cases.

  libperf:

   - Add API for allocating new thread map array.

   - Fix typo in perf_evlist__open() failure error messages in libperf
     tests.

  perf c2c:

   - Replace bitmap_weight() with bitmap_empty() where appropriate"

* tag 'perf-tools-for-v5.18-2022-03-26' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (143 commits)
  perf evsel: Improve AMD IBS (Instruction-Based Sampling) error handling messages
  perf python: Add perf_env stubs that will be needed in evsel__open_strerror()
  perf tools: Enhance the matching of sub-commands abbreviations
  libperf tests: Fix typo in perf_evlist__open() failure error messages
  tools arm64: Import cputype.h
  perf lock: Add -F/--field option to control output
  perf lock: Extend struct lock_key to have print function
  perf lock: Add --synth=no option for record
  tools headers cpufeatures: Sync with the kernel sources
  tools headers cpufeatures: Sync with the kernel sources
  perf stat: Fix forked applications enablement of counters
  tools arch x86: Sync the msr-index.h copy with the kernel sources
  perf evsel: Make evsel__env() always return a valid env
  perf build-id: Fix spelling mistake "Cant" -> "Can't"
  perf header: Fix spelling mistake "could't" -> "couldn't"
  perf script: Add 'brstackinsnlen' for branch stacks
  perf parse-events: Move slots only with topdown
  perf ftrace latency: Update documentation
  perf ftrace latency: Add -n/--use-nsec option
  perf tools: Fix version kernel tag
  ...
2022-03-27 13:42:32 -07:00
..
sched tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
unaligned License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atomic.h tools/include: Update atomic definitions 2022-02-20 08:44:37 +02:00
bitmap.h tools: sync tools/bitmap with mother linux 2022-01-15 08:47:31 -08:00
bitops.h bitops: more BITS_TO_* macros 2020-02-04 03:05:26 +00:00
bits.h linux/bits.h: fix compilation error with GENMASK 2021-05-22 15:09:07 -10:00
btf_ids.h btf: Add BTF_ID_LIST_SINGLE macro 2020-09-21 15:00:40 -07:00
bug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
build_bug.h tools headers: Syncronize linux/build_bug.h with the kernel sources 2021-01-15 16:31:46 -03:00
cache.h tools/include: Add cache.h stub 2022-02-20 08:44:37 +02:00
compiler-gcc.h tools: compiler-gcc.h: Guard error attribute use with __has_attribute 2021-09-13 15:51:41 -07:00
compiler.h tools compiler.h: Remove duplicate #ifndef noinline block 2022-03-12 11:00:57 -03:00
compiler_types.h tools: Add sparse context/locking annotations in compiler-types.h 2021-08-19 15:39:22 -03:00
const.h linux/bits.h: fix compilation error with GENMASK 2021-05-22 15:09:07 -10:00
coresight-pmu.h perf cs-etm: Update deduction of TRCCONFIGR register for branch broadcast 2022-02-15 17:15:32 -03:00
ctype.h tools headers: Update linux/ctype.h with the kernel sources 2020-12-18 17:32:28 -03:00
debugfs.h tools/include: Add debugfs.h stub 2022-02-20 08:44:37 +02:00
delay.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
err.h docs: fix broken documentation links 2019-06-08 13:42:13 -06:00
export.h module: remove EXPORT_UNUSED_SYMBOL* 2021-02-08 12:28:07 +01:00
filter.h bpf: Add bitwise atomic instructions 2021-01-14 18:34:29 -08:00
find.h tools: sync tools/bitmap with mother linux 2022-01-15 08:47:31 -08:00
ftrace.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
gfp.h tools: Move gfp.h and slab.h from radix-tree to lib 2022-02-20 08:44:37 +02:00
hash.h hash.h: remove unused define directive 2022-01-20 08:52:54 +02:00
hashtable.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
interrupt.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
io.h tools/include: Add io.h stub 2022-02-20 08:44:37 +02:00
jhash.h tools/: replace HTTP links with HTTPS ones 2020-08-07 11:33:21 -07:00
kallsyms.h kallsyms/printk: add loglvl to print_ip_sym() 2020-06-09 09:39:10 -07:00
kconfig.h tools headers: Remove broken definition of __LITTLE_ENDIAN 2021-07-14 14:39:36 -03:00
kern_levels.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kernel.h tools/include: Add _RET_IP_ and math definitions to kernel.h 2022-02-20 08:44:37 +02:00
linkage.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
list.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
list_sort.h tools lib: Adopt list_sort() from the kernel sources 2021-10-20 10:30:59 -03:00
log2.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
math.h tools: Fix math.h breakage 2021-11-30 09:14:42 -08:00
math64.h tools include: Add an initial math64.h 2021-04-15 16:38:02 -03:00
mm.h tools/include: Add mm.h file 2022-02-20 08:44:37 +02:00
module.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mutex.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
nmi.h tools/lib/lockdep: Add empty nmi.h 2018-09-10 13:48:23 +02:00
numa.h tools/: replace open encodings for NUMA_NO_NODE 2019-03-05 21:07:14 -08:00
objtool.h x86,objtool: Move the ASM_REACHABLE annotation to objtool.h 2022-03-15 10:32:45 +01:00
overflow.h compiler.h: drop fallback overflow checkers 2021-09-13 10:18:28 -07:00
pfn.h tools/include: Add pfn.h stub 2022-02-20 08:44:37 +02:00
poison.h mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO 2020-12-15 12:13:46 -08:00
rbtree.h rbtree: Add generic add and find helpers 2021-02-17 14:07:31 +01:00
rbtree_augmented.h docs: Add rbtree documentation to the core-api 2020-04-21 10:29:19 -06:00
rcu.h rcu: Don't return a value from rcu_assign_pointer() 2019-06-13 15:38:34 -07:00
refcount.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ring_buffer.h tools headers: Add missing perf_event.h include 2019-08-22 11:12:36 -03:00
seq_file.h tools/lib/lockdep: Remove private kernel headers 2017-06-05 09:28:14 +02:00
sizes.h tools: bpftool: add "prog run" subcommand to test-run programs 2019-07-05 23:48:07 +02:00
slab.h memblock tests: Add skeleton of the memblock simulator 2022-02-20 08:44:37 +02:00
spinlock.h tools/lib/lockdep: drop leftover liblockdep headers 2021-12-09 09:37:49 -08:00
static_call_types.h static_call: Move struct static_call_key definition to static_call_types.h 2021-03-11 16:04:39 +01:00
string.h tools lib: Adopt memchr_inv() from kernel 2020-11-27 08:34:52 -03:00
stringify.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
time64.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
types.h memblock: test suite and a small cleanup 2022-03-27 13:36:06 -07:00
zalloc.h tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00