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Ingo Molnar 39b656ee9f perf/core improvements and fixes: 
perf trace:
 
   Arnaldo Carvalho de Melo:
 
   - Reuse the strace-like syscall_arg_fmt->scnprintf() beautification routines
     (convert integer arguments into strings, like open flags, etc) in tracepoint
     arguments.
 
     For now the type based scnprintf routines (pid_t, umode_t, etc) and the
     ones based in well known arg name based ("fd", etc) gets associated with
     tracepoint args of that type.
 
     A tracepoint only arg, "msr", for the msr:{write,read}_msr gets added as
     an initial step.
 
   - Introduce syscall_arg_fmt->strtoul() methods to be the reverse operation
     of ->scnprintf(), i.e. to go from a string to an integer.
 
   - Implement --filter, just like in 'perf record', that affects the tracepoint
     events specied thus far in the command line, use the ->strtoul() methods
     to allow strings in tables associated with beautifiers to the integers
     the in-kernel tracepoint (eBPF later) filters expect, e.g.:
 
      # perf trace --max-events 1 -e sched:*ipi --filter="cpu==1 || cpu==2"
       0.000 as/24630 sched:sched_wake_idle_without_ipi(cpu: 1)
      #
 
      # perf trace --max-events 1 --max-stack=32 -e msr:* --filter="msr==IA32_TSC_DEADLINE"
       207.000 cc1/19963 msr:write_msr(msr: IA32_TSC_DEADLINE, val: 5442316760822)
                                         do_trace_write_msr ([kernel.kallsyms])
                                         do_trace_write_msr ([kernel.kallsyms])
                                         lapic_next_deadline ([kernel.kallsyms])
                                         clockevents_program_event ([kernel.kallsyms])
                                         hrtimer_interrupt ([kernel.kallsyms])
                                         smp_apic_timer_interrupt ([kernel.kallsyms])
                                         apic_timer_interrupt ([kernel.kallsyms])
                                         [0x6ff66c] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         [0x7047c3] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         [0x707708] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         execute_one_pass (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         [0x4f3d37] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         [0x4f3d49] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         execute_pass_list (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         cgraph_node::expand (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         [0x2625b4] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         symbol_table::finalize_compilation_unit (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         [0x5ae8b9] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         toplev::main (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         main (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                         [0x26b6a] (/usr/lib/x86_64-linux-gnu/libc-2.29.so)
      #
      # perf trace --max-events 8 -e msr:* --filter="msr==IA32_SPEC_CTRL"
          0.000 :13281/13281 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
          0.063 migration/3/25 msr:write_msr(msr: IA32_SPEC_CTRL)
          0.217 kworker/u16:1-/4826 msr:write_msr(msr: IA32_SPEC_CTRL)
          0.687 rcu_sched/11 msr:write_msr(msr: IA32_SPEC_CTRL)
          0.696 :13280/13280 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
          0.305 :13281/13281 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
          0.355 :13274/13274 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
          2.743 kworker/u16:0-/6711 msr:write_msr(msr: IA32_SPEC_CTRL)
      #
      # perf trace --max-events 8 --cpu 1 -e msr:* --filter="msr!=IA32_SPEC_CTRL && msr!=IA32_TSC_DEADLINE && msr != FS_BASE"
            0.000 mtr-packet/30819 msr:write_msr(msr: 0x830, val: 68719479037)
            0.096 :0/0 msr:read_msr(msr: IA32_TSC_ADJUST)
          238.925 mtr-packet/30819 msr:write_msr(msr: 0x830, val: 8589936893)
          511.010 :0/0 msr:write_msr(msr: 0x830, val: 68719479037)
         1005.052 :0/0 msr:read_msr(msr: IA32_TSC_ADJUST)
         1235.131 CPU 0/KVM/3750 msr:write_msr(msr: 0x830, val: 4294969595)
         1235.195 CPU 0/KVM/3750 msr:read_msr(msr: IA32_SYSENTER_ESP, val: -2199023037952)
         1235.201 CPU 0/KVM/3750 msr:read_msr(msr: IA32_APICBASE, val: 4276096000)
      #
 
   - Default to not using libtraceevent and its plugins for beautifying
     tracepoint arguments, since now we're reusing the strace-like beatufiers.
     Use --libtraceevent_print (using just --libtrace is unambiguous and can
     be used as a short hand) to go back to those beautifiers.
 
     This will help in the transition, as can be seen in some of the sched tracepoints
     that still need some work in the libbeauty based mode:
 
     # trace --no-inherit -e msr:*,*sleep,sched:* sleep 1
          0.000 (         ): sched:sched_waking(comm: "trace", pid: 3319 (trace), prio: 120, success: 1)
          0.006 (         ): sched:sched_wakeup(comm: "trace", pid: 3319 (trace), prio: 120, success: 1)
          0.348 (         ): sched:sched_process_exec(filename: 140212596720100, pid: 3319 (sleep), old_pid: 3319 (sleep))
          0.490 (         ): msr:write_msr(msr: FS_BASE, val: 139631189321088)
          0.670 (         ): nanosleep(rqtp: 0x7ffc52c23bc0)                                    ...
          0.674 (         ): sched:sched_stat_runtime(comm: "sleep", pid: 3319 (sleep), runtime: 659259, vruntime: 78942418342)
          0.675 (         ): sched:sched_switch(prev_comm: "sleep", prev_pid: 3319 (sleep), prev_prio: 120, prev_state: 1, next_comm: "swapper/0", next_prio: 120)
       1001.059 (         ): sched:sched_waking(comm: "sleep", pid: 3319 (sleep), prio: 120, success: 1)
       1001.098 (         ): sched:sched_wakeup(comm: "sleep", pid: 3319 (sleep), prio: 120, success: 1)
          0.670 (1000.504 ms):  ... [continued]: nanosleep())                                        = 0
       1001.456 (         ): sched:sched_process_exit(comm: "sleep", pid: 3319 (sleep), prio: 120)
     # trace --libtrace --no-inherit -e msr:*,*sleep,sched:* sleep 1
     # trace --libtrace --no-inherit -e msr:*,*sleep,sched:* sleep 1
          0.000 (         ): sched:sched_waking(comm=trace pid=3323 prio=120 target_cpu=000)
          0.007 (         ): sched:sched_wakeup(comm=trace pid=3323 prio=120 target_cpu=000)
          0.382 (         ): sched:sched_process_exec(filename=/usr/bin/sleep pid=3323 old_pid=3323)
          0.525 (         ): msr:write_msr(c0000100, value 7f5d508a0580)
          0.713 (         ): nanosleep(rqtp: 0x7fff487fb4a0)                                    ...
          0.717 (         ): sched:sched_stat_runtime(comm=sleep pid=3323 runtime=617722 [ns] vruntime=78957731636 [ns])
          0.719 (         ): sched:sched_switch(prev_comm=sleep prev_pid=3323 prev_prio=120 prev_state=S ==> next_comm=swapper/0 next_pid=0 next_prio=120)
       1001.117 (         ): sched:sched_waking(comm=sleep pid=3323 prio=120 target_cpu=000)
       1001.157 (         ): sched:sched_wakeup(comm=sleep pid=3323 prio=120 target_cpu=000)
          0.713 (1000.522 ms):  ... [continued]: nanosleep())                                        = 0
       1001.538 (         ): sched:sched_process_exit(comm=sleep pid=3323 prio=120)
     #
 
   - Make -v (verbose) mode be honoured for .perfconfig based trace.add_events,
     to help in diagnosing problems with building eBPF events (-e source.c).
 
   - When using eBPF syscall payload augmentation do not show strace-like
     syscalls when all the user specified was some tracepoint event, bringing
     the behaviour in line with that of when not using eBPF augmentation.
 
 Intel PT:
 
   exported-sql-viewer GUI:
 
   Adrian Hunter:
 
   - Add LookupModel, HBoxLayout, VBoxLayout, global time range calculations
     so as to add a time chart by CPU.
 
 perf script:
 
   Andi Kleen:
 
   - Allow --time (to specify a time span of interest) with --reltime
 
 perf diff:
 
   Jin Yao:
 
   - Report noise for cycles diff, i.e. a histogram + stddev.
     (timestamps relative to start).
 
 perf annotate:
 
   Arnaldo Carvalho de Melo:
 
   - Initialize env->cpuid when running in live mode (perf top), as it
     is used in some of the per arch annotation init routines.
 
 samples bpf:
 
   Björn Töpel:
 
   - Fixup fallout of using tools/perf/perf-sys. from outside tools/perf.
 
 Core:
 
   Ian Rogers:
 
   - Avoid 'sample_reg_masks' being const + weak, as this breaks with some
     compilers that constant-propagate from the weak symbol.
 
 libperf:
 
   - First part of moving the perf_mmap class from tools/perf to libperf.
 
   - Propagate CFLAGS to libperf from the tools/perf Makefile.
 
 Vendor events:
 
   John Garry:
 
   - Add entry in MAINTAINERS with reviewers for the for perf tool arm64
     pmu-events files.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-5.5-20191011' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf trace:

  Arnaldo Carvalho de Melo:

  - Reuse the strace-like syscall_arg_fmt->scnprintf() beautification routines
    (convert integer arguments into strings, like open flags, etc) in tracepoint
    arguments.

    For now the type based scnprintf routines (pid_t, umode_t, etc) and the
    ones based in well known arg name based ("fd", etc) gets associated with
    tracepoint args of that type.

    A tracepoint only arg, "msr", for the msr:{write,read}_msr gets added as
    an initial step.

  - Introduce syscall_arg_fmt->strtoul() methods to be the reverse operation
    of ->scnprintf(), i.e. to go from a string to an integer.

  - Implement --filter, just like in 'perf record', that affects the tracepoint
    events specied thus far in the command line, use the ->strtoul() methods
    to allow strings in tables associated with beautifiers to the integers
    the in-kernel tracepoint (eBPF later) filters expect, e.g.:

     # perf trace --max-events 1 -e sched:*ipi --filter="cpu==1 || cpu==2"
      0.000 as/24630 sched:sched_wake_idle_without_ipi(cpu: 1)
     #

     # perf trace --max-events 1 --max-stack=32 -e msr:* --filter="msr==IA32_TSC_DEADLINE"
      207.000 cc1/19963 msr:write_msr(msr: IA32_TSC_DEADLINE, val: 5442316760822)
                                        do_trace_write_msr ([kernel.kallsyms])
                                        do_trace_write_msr ([kernel.kallsyms])
                                        lapic_next_deadline ([kernel.kallsyms])
                                        clockevents_program_event ([kernel.kallsyms])
                                        hrtimer_interrupt ([kernel.kallsyms])
                                        smp_apic_timer_interrupt ([kernel.kallsyms])
                                        apic_timer_interrupt ([kernel.kallsyms])
                                        [0x6ff66c] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        [0x7047c3] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        [0x707708] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        execute_one_pass (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        [0x4f3d37] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        [0x4f3d49] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        execute_pass_list (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        cgraph_node::expand (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        [0x2625b4] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        symbol_table::finalize_compilation_unit (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        [0x5ae8b9] (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        toplev::main (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        main (/usr/lib/gcc-cross/alpha-linux-gnu/8/cc1)
                                        [0x26b6a] (/usr/lib/x86_64-linux-gnu/libc-2.29.so)
     #
     # perf trace --max-events 8 -e msr:* --filter="msr==IA32_SPEC_CTRL"
         0.000 :13281/13281 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
         0.063 migration/3/25 msr:write_msr(msr: IA32_SPEC_CTRL)
         0.217 kworker/u16:1-/4826 msr:write_msr(msr: IA32_SPEC_CTRL)
         0.687 rcu_sched/11 msr:write_msr(msr: IA32_SPEC_CTRL)
         0.696 :13280/13280 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
         0.305 :13281/13281 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
         0.355 :13274/13274 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
         2.743 kworker/u16:0-/6711 msr:write_msr(msr: IA32_SPEC_CTRL)
     #
     # perf trace --max-events 8 --cpu 1 -e msr:* --filter="msr!=IA32_SPEC_CTRL && msr!=IA32_TSC_DEADLINE && msr != FS_BASE"
           0.000 mtr-packet/30819 msr:write_msr(msr: 0x830, val: 68719479037)
           0.096 :0/0 msr:read_msr(msr: IA32_TSC_ADJUST)
         238.925 mtr-packet/30819 msr:write_msr(msr: 0x830, val: 8589936893)
         511.010 :0/0 msr:write_msr(msr: 0x830, val: 68719479037)
        1005.052 :0/0 msr:read_msr(msr: IA32_TSC_ADJUST)
        1235.131 CPU 0/KVM/3750 msr:write_msr(msr: 0x830, val: 4294969595)
        1235.195 CPU 0/KVM/3750 msr:read_msr(msr: IA32_SYSENTER_ESP, val: -2199023037952)
        1235.201 CPU 0/KVM/3750 msr:read_msr(msr: IA32_APICBASE, val: 4276096000)
     #

  - Default to not using libtraceevent and its plugins for beautifying
    tracepoint arguments, since now we're reusing the strace-like beatufiers.
    Use --libtraceevent_print (using just --libtrace is unambiguous and can
    be used as a short hand) to go back to those beautifiers.

    This will help in the transition, as can be seen in some of the sched tracepoints
    that still need some work in the libbeauty based mode:

    # trace --no-inherit -e msr:*,*sleep,sched:* sleep 1
         0.000 (         ): sched:sched_waking(comm: "trace", pid: 3319 (trace), prio: 120, success: 1)
         0.006 (         ): sched:sched_wakeup(comm: "trace", pid: 3319 (trace), prio: 120, success: 1)
         0.348 (         ): sched:sched_process_exec(filename: 140212596720100, pid: 3319 (sleep), old_pid: 3319 (sleep))
         0.490 (         ): msr:write_msr(msr: FS_BASE, val: 139631189321088)
         0.670 (         ): nanosleep(rqtp: 0x7ffc52c23bc0)                                    ...
         0.674 (         ): sched:sched_stat_runtime(comm: "sleep", pid: 3319 (sleep), runtime: 659259, vruntime: 78942418342)
         0.675 (         ): sched:sched_switch(prev_comm: "sleep", prev_pid: 3319 (sleep), prev_prio: 120, prev_state: 1, next_comm: "swapper/0", next_prio: 120)
      1001.059 (         ): sched:sched_waking(comm: "sleep", pid: 3319 (sleep), prio: 120, success: 1)
      1001.098 (         ): sched:sched_wakeup(comm: "sleep", pid: 3319 (sleep), prio: 120, success: 1)
         0.670 (1000.504 ms):  ... [continued]: nanosleep())                                        = 0
      1001.456 (         ): sched:sched_process_exit(comm: "sleep", pid: 3319 (sleep), prio: 120)
    # trace --libtrace --no-inherit -e msr:*,*sleep,sched:* sleep 1
    # trace --libtrace --no-inherit -e msr:*,*sleep,sched:* sleep 1
         0.000 (         ): sched:sched_waking(comm=trace pid=3323 prio=120 target_cpu=000)
         0.007 (         ): sched:sched_wakeup(comm=trace pid=3323 prio=120 target_cpu=000)
         0.382 (         ): sched:sched_process_exec(filename=/usr/bin/sleep pid=3323 old_pid=3323)
         0.525 (         ): msr:write_msr(c0000100, value 7f5d508a0580)
         0.713 (         ): nanosleep(rqtp: 0x7fff487fb4a0)                                    ...
         0.717 (         ): sched:sched_stat_runtime(comm=sleep pid=3323 runtime=617722 [ns] vruntime=78957731636 [ns])
         0.719 (         ): sched:sched_switch(prev_comm=sleep prev_pid=3323 prev_prio=120 prev_state=S ==> next_comm=swapper/0 next_pid=0 next_prio=120)
      1001.117 (         ): sched:sched_waking(comm=sleep pid=3323 prio=120 target_cpu=000)
      1001.157 (         ): sched:sched_wakeup(comm=sleep pid=3323 prio=120 target_cpu=000)
         0.713 (1000.522 ms):  ... [continued]: nanosleep())                                        = 0
      1001.538 (         ): sched:sched_process_exit(comm=sleep pid=3323 prio=120)
    #

  - Make -v (verbose) mode be honoured for .perfconfig based trace.add_events,
    to help in diagnosing problems with building eBPF events (-e source.c).

  - When using eBPF syscall payload augmentation do not show strace-like
    syscalls when all the user specified was some tracepoint event, bringing
    the behaviour in line with that of when not using eBPF augmentation.

Intel PT:

  exported-sql-viewer GUI:

  Adrian Hunter:

  - Add LookupModel, HBoxLayout, VBoxLayout, global time range calculations
    so as to add a time chart by CPU.

perf script:

  Andi Kleen:

  - Allow --time (to specify a time span of interest) with --reltime

perf diff:

  Jin Yao:

  - Report noise for cycles diff, i.e. a histogram + stddev.
    (timestamps relative to start).

perf annotate:

  Arnaldo Carvalho de Melo:

  - Initialize env->cpuid when running in live mode (perf top), as it
    is used in some of the per arch annotation init routines.

samples bpf:

  Björn Töpel:

  - Fixup fallout of using tools/perf/perf-sys. from outside tools/perf.

Core:

  Ian Rogers:

  - Avoid 'sample_reg_masks' being const + weak, as this breaks with some
    compilers that constant-propagate from the weak symbol.

libperf:

  - First part of moving the perf_mmap class from tools/perf to libperf.

  - Propagate CFLAGS to libperf from the tools/perf Makefile.

Vendor events:

  John Garry:

  - Add entry in MAINTAINERS with reviewers for the for perf tool arm64
    pmu-events files.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-15 07:19:55 +02:00
..
accounting
arch tools arch x86: Grab a copy of the file containing the MSR numbers 2019-10-07 12:22:18 -03:00
bpf Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2019-09-06 16:49:17 +02:00
build tools build: Add capability-related feature detection 2019-08-12 17:14:14 -03:00
cgroup iocost_monitor: Report debt 2019-09-10 12:31:39 -06:00
debugging
firewire
firmware Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
gpio Bulk GPIO changes for the v5.3 kernel cycle: 2019-07-09 09:07:00 -07:00
hv - First round of vmbus hibernation support from Dexuan Cui. 2019-09-24 12:36:31 -07:00
iio tools: iio: add .gitignore 2019-08-18 20:45:57 +01:00
include tools headers kvm: Sync kvm headers with the kernel sources 2019-09-30 17:29:30 -03:00
io_uring
kvm/kvm_stat
laptop
leds leds: core: Add support for composing LED class device names 2019-07-25 20:07:52 +02:00
lib perf/urgent fixes: 2019-10-07 15:15:24 +02:00
memory-model tools/memory-model: Update the informal documentation 2019-08-09 10:28:57 -07:00
nfsd
objtool KVM: x86: Check kvm_rebooting in kvm_spurious_fault() 2019-09-25 15:23:33 +02:00
pci pci-v5.3-changes 2019-07-15 20:44:49 -07:00
pcmcia
perf perf diff: Report noisy for cycles diff 2019-10-11 10:57:00 -03:00
power platform-drivers-x86 for v5.4-2 2019-09-24 12:39:40 -07:00
scripts perf build: Do not use -Wshadow on gcc < 4.8 2019-07-23 09:04:54 -03:00
spi
testing powerpc fixes for 5.4 #3 2019-10-12 14:13:55 -07:00
thermal/tmon
time
usb usbip: tools: fix GCC8 warning for strncpy 2019-07-25 18:12:20 +02:00
virtio
vm tools/vm/slabinfo: add sorting info to help menu 2019-07-12 11:05:46 -07:00
wmi
Makefile tools: Keep list of tools in alphabetical order 2019-08-14 10:59:59 -03:00