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Date: Wed, 14 Mar 2018 17:17:57 +0300
From: Alexey Budankov <alexey.budankov@...ux.intel.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...hat.com>,
Namhyung Kim <namhyung@...nel.org>,
Andi Kleen <ak@...ux.intel.com>,
linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND v1 0/3] perf/core: expose thread context switch out
event type to user space
On 12.03.2018 11:38, Alexey Budankov wrote:
>
> Here is a series of small patches that implement exposing type of
> context-switch-out event as a part of PERF_RECORD_SWITCH[_CPU_WIDE] record.
Testing results from my Fedora 27/x86_64:
uname -a
Linux nntvtune39 4.16.0-rc4+ #1 SMP Mon Mar 12 21:17:37 MSK 2018 x86_64 x86_64 x86_64 GNU/Linux
make -C tools/perf build-test
make: Entering directory '/root/abudanko/tip/tools/perf'
- tarpkg: ./tests/perf-targz-src-pkg .
make_help_O: cd . && make help FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.xrLs5ksrJ9 DESTDIR=/tmp/tmp.5ZpjIqvBVY
make_doc_O: cd . && make doc FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.MJmfrgLhNK DESTDIR=/tmp/tmp.yJo94jyacg
make_no_libunwind_O: cd . && make NO_LIBUNWIND=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.ZuEWWlVFeU DESTDIR=/tmp/tmp.aNyH2VKah3
make_install_O: cd . && make install FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.XXcWzGEFUk DESTDIR=/tmp/tmp.NMO2Xtx42H
make_install_prefix_O: cd . && make install prefix=/tmp/krava FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.5RerzNEW09 DESTDIR=/tmp/tmp.ehBBqNFP98
make_no_libnuma_O: cd . && make NO_LIBNUMA=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.aMXBc8UM1x DESTDIR=/tmp/tmp.ttdyrsd18s
make_static_O: cd . && make LDFLAGS=-static FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP_STATIC O=/tmp/tmp.obO7qjlSS9 DESTDIR=/tmp/tmp.dnvYuui9Jj
make_no_libaudit_O: cd . && make NO_LIBAUDIT=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.7cWjMWSYZD DESTDIR=/tmp/tmp.tIi87QH0yU
make_tags_O: cd . && make tags FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.RhiMLTTU6h DESTDIR=/tmp/tmp.JAAbJwzneB
make_debug_O: cd . && make DEBUG=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.WeiF5jlgUO DESTDIR=/tmp/tmp.LuEBtkX92v
make_install_prefix_slash_O: cd . && make install prefix=/tmp/krava/ FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.Wdsxe0jQ8j DESTDIR=/tmp/tmp.iraPIy4UAS
make_no_libelf_O: cd . && make NO_LIBELF=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.6MBYepMyHa DESTDIR=/tmp/tmp.p3PrkVry8g
make_with_clangllvm_O: cd . && make LIBCLANGLLVM=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.PoPZzgpUV1 DESTDIR=/tmp/tmp.ipXWNpqDRs
make_minimal_O: cd . && make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.hq7E29QItv DESTDIR=/tmp/tmp.5RgyPl1F0Q
make_no_libperl_O: cd . && make NO_LIBPERL=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.1yx2LBUHLy DESTDIR=/tmp/tmp.258moNRwf3
make_no_scripts_O: cd . && make NO_LIBPYTHON=1 NO_LIBPERL=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.sohUVBmifi DESTDIR=/tmp/tmp.DFP99FuMWs
make_no_ui_O: cd . && make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.uoGvFnx0sR DESTDIR=/tmp/tmp.0RNi8PX9wa
make_pure_O: cd . && make FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.HqqCNIxJmM DESTDIR=/tmp/tmp.CvFxUqhh4X
make_clean_all_O: cd . && make clean all FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.hffsHJY0jp DESTDIR=/tmp/tmp.3kq9oSNTJD
make_no_newt_O: cd . && make NO_NEWT=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.4DDe0e7oiV DESTDIR=/tmp/tmp.lH28Fbdq2A
make_install_bin_O: cd . && make install-bin FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.r8pqeg8Bji DESTDIR=/tmp/tmp.fDlZujS8lV
make_util_pmu_bison_o_O: cd . && make util/pmu-bison.o FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.f3V6Jiisxg DESTDIR=/tmp/tmp.PUDAXV2mch
make_no_libbionic_O: cd . && make NO_LIBBIONIC=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.VKfBelKuio DESTDIR=/tmp/tmp.3y5FCbUf6P
make_no_gtk2_O: cd . && make NO_GTK2=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.zaVqsGpU2H DESTDIR=/tmp/tmp.i9UKKwNPED
make_with_babeltrace_O: cd . && make LIBBABELTRACE=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.3PDo5rHKA1 DESTDIR=/tmp/tmp.CjHtdhGFDa
make_no_demangle_O: cd . && make NO_DEMANGLE=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.cafL24IcpK DESTDIR=/tmp/tmp.Df2ehA6Coc
make_util_map_o_O: cd . && make util/map.o FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.rqy6KUq5u3 DESTDIR=/tmp/tmp.0gcFovJ7dU
make_perf_o_O: cd . && make perf.o FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.Hgn6SV60iB DESTDIR=/tmp/tmp.zPz5HSuCdc
make_no_slang_O: cd . && make NO_SLANG=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.yNpnVEo3cY DESTDIR=/tmp/tmp.WlGcI4JYLr
make_no_libpython_O: cd . && make NO_LIBPYTHON=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.eUIGux6t1l DESTDIR=/tmp/tmp.9fbBddEstQ
make_no_libdw_dwarf_unwind_O: cd . && make NO_LIBDW_DWARF_UNWIND=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.9mj1JAfAU0 DESTDIR=/tmp/tmp.YrMfF3PgTE
make_no_backtrace_O: cd . && make NO_BACKTRACE=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.2r9LfRZpLU DESTDIR=/tmp/tmp.QfnjPHDYYl
make_no_libbpf_O: cd . && make NO_LIBBPF=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.3VYlKWYvYr DESTDIR=/tmp/tmp.C2S4CFHUJS
make_no_auxtrace_O: cd . && make NO_AUXTRACE=1 FEATURES_DUMP=/root/abudanko/tip/tools/perf/BUILD_TEST_FEATURE_DUMP O=/tmp/tmp.zQcyEThr5D DESTDIR=/tmp/tmp.3NDAUKtHXm
OK
make: Leaving directory '/root/abudanko/tip/tools/perf'
perf test
1: vmlinux symtab matches kallsyms : Ok
2: Detect openat syscall event : Ok
3: Detect openat syscall event on all cpus : Ok
4: Read samples using the mmap interface : Ok
5: Test data source output : Ok
6: Parse event definition strings : Ok
7: Simple expression parser : Ok
8: PERF_RECORD_* events & perf_sample fields : Ok
9: Parse perf pmu format : Ok
10: DSO data read : Ok
11: DSO data cache : Ok
12: DSO data reopen : Ok
13: Roundtrip evsel->name : Ok
14: Parse sched tracepoints fields : Ok
15: syscalls:sys_enter_openat event fields : Ok
16: Setup struct perf_event_attr : Ok
17: Match and link multiple hists : Ok
18: 'import perf' in python : Ok
19: Breakpoint overflow signal handler : Ok
20: Breakpoint overflow sampling : Ok
21: Number of exit events of a simple workload : Ok
22: Software clock events period values : Ok
23: Object code reading :
--- start ---
test child forked, pid 16844
Looking at the vmlinux_path (8 entries long)
Using /lib/modules/4.16.0-rc4+/build/vmlinux for symbols
Parsing event 'cycles'
mmap size 528384B
Reading object code for memory address: 0xffffffffab060c16
File is: /lib/modules/4.16.0-rc4+/build/vmlinux
On file address is: 0x260c16
Objdump command is: objdump -z -d --start-address=0xffffffff81060c16 --stop-address=0xffffffff81060c96 /lib/modules/4.16.0-rc4+/build/vmlinux
Bytes read match those read by objdump
Reading object code for memory address: 0xfffffe000013a01e
thread__find_addr_map failed
test child finished with -1
---- end ----
Object code reading: FAILED!
24: Sample parsing : Ok
25: Use a dummy software event to keep tracking : Ok
26: Parse with no sample_id_all bit set : Ok
27: Filter hist entries : Ok
28: Lookup mmap thread : Ok
29: Share thread mg : Ok
30: Sort output of hist entries : Ok
31: Cumulate child hist entries : Ok
32: Track with sched_switch : Ok
33: Filter fds with revents mask in a fdarray : Ok
34: Add fd to a fdarray, making it autogrow : Ok
35: kmod_path__parse : Ok
36: Thread map : Ok
37: LLVM search and compile :
37.1: Basic BPF llvm compile : Skip
37.2: kbuild searching : Skip
37.3: Compile source for BPF prologue generation : Skip
37.4: Compile source for BPF relocation : Skip
38: Session topology : Ok
39: BPF filter :
39.1: Basic BPF filtering : Skip
39.2: BPF pinning : Skip
39.3: BPF prologue generation : Skip
39.4: BPF relocation checker : Skip
40: Synthesize thread map : Ok
41: Remove thread map : Ok
42: Synthesize cpu map : Ok
43: Synthesize stat config : Ok
44: Synthesize stat : Ok
45: Synthesize stat round : Ok
46: Synthesize attr update : Ok
47: Event times : Ok
48: Read backward ring buffer : Ok
49: Print cpu map : Ok
50: Probe SDT events : Ok
51: is_printable_array : Ok
52: Print bitmap : Ok
53: perf hooks : Ok
54: builtin clang support : Skip (not compiled in)
55: unit_number__scnprintf : Ok
56: x86 rdpmc : Ok
57: Convert perf time to TSC : Ok
58: DWARF unwind : Ok
59: x86 instruction decoder - new instructions : Ok
60: Use vfs_getname probe to get syscall args filenames : Ok
61: Add vfs_getname probe to get syscall args filenames : Ok
62: Check open filename arg using perf trace + vfs_getname: Ok
63: probe libc's inet_pton & backtrace it with ping : Ok
Thanks,
Alexey
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