perf build: Rename TEST_LOGS to SHELL_TEST_LOGS

Rename TEST_LOGS to SHELL_TEST_LOGS as later changes will add more
kinds of test logs.
Minor comment tweak in Makefile.perf as more than just test she

perf build: Rename TEST_LOGS to SHELL_TEST_LOGS

Rename TEST_LOGS to SHELL_TEST_LOGS as later changes will add more
kinds of test logs.
Minor comment tweak in Makefile.perf as more than just test shell
tests are checked.

Reviewed-by: James Clark <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>

show more ...

perf test: Make tests its own library

Make the tests code its own library. This is done to avoid compiling
code twice, once for the perf tool and once for the perf python
module.

Signed-off-by: Ian

perf test: Make tests its own library

Make the tests code its own library. This is done to avoid compiling
code twice, once for the perf tool and once for the perf python
module.

Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: James Clark <[email protected]>
Cc: Suzuki K Poulose <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Nick Terrell <[email protected]>
Cc: Gary Guo <[email protected]>
Cc: Alex Gaynor <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: Wedson Almeida Filho <[email protected]>
Cc: Ze Gao <[email protected]>
Cc: Alice Ryhl <[email protected]>
Cc: Andrei Vagin <[email protected]>
Cc: Yicong Yang <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Oliver Upton <[email protected]>
Cc: John Garry <[email protected]>
Cc: Benno Lossin <[email protected]>
Cc: Björn Roy Baron <[email protected]>
Cc: Andreas Hindborg <[email protected]>
Cc: Paul Walmsley <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

show more ...

perf arch x86: Add shellcheck to build

Add shellcheck for:

tools/perf/arch/x86/tests/gen-insn-x86-dat.sh
tools/perf/arch/x86/entry/syscalls/syscalltbl.sh

Address a minor quoting issue.

Review

perf arch x86: Add shellcheck to build

Add shellcheck for:

tools/perf/arch/x86/tests/gen-insn-x86-dat.sh
tools/perf/arch/x86/entry/syscalls/syscalltbl.sh

Address a minor quoting issue.

Reviewed-by: James Clark <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Oliver Upton <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf tests: Make x86 new instructions test optional at build time

The "x86 instruction decoder - new instructions" test takes up space but
is only really useful to developers. Make it optional at bu

perf tests: Make x86 new instructions test optional at build time

The "x86 instruction decoder - new instructions" test takes up space but
is only really useful to developers. Make it optional at build time.

Add variable EXTRA_TESTS which must be defined in order to build perf
with the test.

Example:

Before:

$ make -C tools/perf clean >/dev/null
$ make -C tools/perf >/dev/null
Makefile.config:650: No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR
Makefile.config:1149: libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev
PERF_VERSION = 6.4.rc3.gd15b8c76c964
$ readelf -SW tools/perf/perf | grep '\.rela.dyn\|.rodata\|\.data.rel.ro'
[10] .rela.dyn RELA 000000000002fcb0 02fcb0 0748b0 18 A 6 0 8
[18] .rodata PROGBITS 00000000002eb000 2eb000 6bac00 00 A 0 0 32
[25] .data.rel.ro PROGBITS 00000000009ea180 9e9180 04b540 00 WA 0 0 32

After:

$ make -C tools/perf clean >/dev/null
$ make -C tools/perf >/dev/null
Makefile.config:650: No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR
Makefile.config:1154: libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev
PERF_VERSION = 6.4.rc3.g4ea9c1569ea4
$ readelf -SW tools/perf/perf | grep '\.rela.dyn\|.rodata\|\.data.rel.ro'
[10] .rela.dyn RELA 000000000002f3c8 02f3c8 036d68 18 A 6 0 8
[18] .rodata PROGBITS 00000000002ac000 2ac000 68da80 00 A 0 0 32
[25] .data.rel.ro PROGBITS 000000000097d440 97c440 022280 00 WA 0 0 32

Committer notes:

Build with 'make EXTRA_TESTS=1 -C tools/perf O=/tmp/build/perf" and
reproduced the ELF section size differences.

Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf test: Move x86 hybrid tests to arch/x86

The tests use x86 hybrid specific PMUs.

Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Kan Liang <[email protected]>
Cc: Adrian Hunte

perf test: Move x86 hybrid tests to arch/x86

The tests use x86 hybrid specific PMUs.

Signed-off-by: Ian Rogers <[email protected]>
Tested-by: Kan Liang <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ahmad Yasin <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Caleb Biggers <[email protected]>
Cc: Edward Baker <[email protected]>
Cc: Florian Fischer <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kang Minchul <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Perry Taylor <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Samantha Alt <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Suzuki Poulouse <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Tiezhu Yang <[email protected]>
Cc: Weilin Wang <[email protected]>
Cc: Xing Zhengjun <[email protected]>
Cc: Yang Jihong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf test: Add selftest to test IBS invocation via core pmu events

IBS pmu can be invoked via fixed set of core pmu events with 'precise_ip'
set to 1. Add a simple event open test for all these even

perf test: Add selftest to test IBS invocation via core pmu events

IBS pmu can be invoked via fixed set of core pmu events with 'precise_ip'
set to 1. Add a simple event open test for all these events.

Without kernel fix:
$ sudo ./perf test -vv 76
76: AMD IBS via core pmu :
--- start ---
test child forked, pid 6553
Using CPUID AuthenticAMD-25-1-1
type: 0x0, config: 0x0, fd: 3 - Pass
type: 0x0, config: 0x1, fd: -1 - Pass
type: 0x4, config: 0x76, fd: -1 - Fail
type: 0x4, config: 0xc1, fd: -1 - Fail
type: 0x4, config: 0x12, fd: -1 - Pass
test child finished with -1
---- end ----
AMD IBS via core pmu: FAILED!

With kernel fix:
$ sudo ./perf test -vv 76
76: AMD IBS via core pmu :
--- start ---
test child forked, pid 7526
Using CPUID AuthenticAMD-25-1-1
type: 0x0, config: 0x0, fd: 3 - Pass
type: 0x0, config: 0x1, fd: -1 - Pass
type: 0x4, config: 0x76, fd: 3 - Pass
type: 0x4, config: 0xc1, fd: 3 - Pass
type: 0x4, config: 0x12, fd: -1 - Pass
test child finished with 0
---- end ----
AMD IBS via core pmu: Ok

Signed-off-by: Ravi Bangoria <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]

show more ...

perf intel-pt: Start turning intel-pt-pkt-decoder-test.c into a suite of intel-pt subtests

In preparation for adding more Intel PT testing, rename
intel-pt-pkt-decoder-test.c to intel-pt-test.c.

Su

perf intel-pt: Start turning intel-pt-pkt-decoder-test.c into a suite of intel-pt subtests

In preparation for adding more Intel PT testing, rename
intel-pt-pkt-decoder-test.c to intel-pt-test.c.

Subtests will later be added to intel-pt-test.c.

Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf test: Remove x86 rdpmc test

This test has been superseded by test_stat_user_read in:

tools/lib/perf/tests/test-evsel.c

The updated test doesn't divide-by-0 when running time of a counter is

perf test: Remove x86 rdpmc test

This test has been superseded by test_stat_user_read in:

tools/lib/perf/tests/test-evsel.c

The updated test doesn't divide-by-0 when running time of a counter is
0. It also supports ARM64.

Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Rob Herring <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Anshuman Khandual <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf test: Support the ins_lat check in the X86 specific test

The ins_lat of PERF_SAMPLE_WEIGHT_STRUCT stands for the instruction
latency, which is only available for X86. Add a X86 specific test fo

perf test: Support the ins_lat check in the X86 specific test

The ins_lat of PERF_SAMPLE_WEIGHT_STRUCT stands for the instruction
latency, which is only available for X86. Add a X86 specific test for
the ins_lat and PERF_SAMPLE_WEIGHT_STRUCT type.

The test__x86_sample_parsing() uses the same way as the
test__sample_parsing() to verify a sample type. Since the ins_lat and
PERF_SAMPLE_WEIGHT_STRUCT are the only X86 specific sample type for now,
the test__x86_sample_parsing() only verify the PERF_SAMPLE_WEIGHT_STRUCT
type. Other sample types are still verified in the generic test.

$ perf test 77 -v
77: x86 Sample parsing :
--- start ---
test child forked, pid 102370
test child finished with 0
---- end ----
x86 Sample parsing: Ok

Signed-off-by: Kan Liang <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Sumanth Korikkar <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf tests tsc: Make tsc testing as a common testing

x86 arch provides the testing for conversion between tsc and perf time,
the testing is located in x86 arch folder. Move this testing out from
x8

perf tests tsc: Make tsc testing as a common testing

x86 arch provides the testing for conversion between tsc and perf time,
the testing is located in x86 arch folder. Move this testing out from
x86 arch folder and place it into the common testing folder, so allows
to execute tsc testing on other architectures (e.g. Arm64).

This patch removes the inclusion of "arch-tests.h" from the testing
code, this can avoid building failure if any arch has no this header
file.

Committer testing:

$ perf test -v tsc
Couldn't bump rlimit(MEMLOCK), failures may take place when creating BPF maps, etc
70: Convert perf time to TSC :
--- start ---
test child forked, pid 4032834
mmap size 528384B
1st event perf time 165409788843605 tsc 336578703793868
rdtsc time 165409788854986 tsc 336578703837038
2nd event perf time 165409788855487 tsc 336578703838935
test child finished with 0
---- end ----
Convert perf time to TSC: Ok
$

Signed-off-by: Leo Yan <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf intel-pt: Add Intel PT packet decoder test

Add Intel PT packet decoder test. This test feeds byte sequences to the
Intel PT packet decoder and checks the results. Changes to the packet
context

perf intel-pt: Add Intel PT packet decoder test

Add Intel PT packet decoder test. This test feeds byte sequences to the
Intel PT packet decoder and checks the results. Changes to the packet
context are also checked.

Committer testing:

# perf test "Intel PT"
65: Intel PT packet decoder : Ok
# perf test -v "Intel PT"
65: Intel PT packet decoder :
--- start ---
test child forked, pid 6360
Decoded ok: 00 PAD
Decoded ok: 04 TNT N (1)
Decoded ok: 06 TNT T (1)
Decoded ok: 80 TNT NNNNNN (6)
Decoded ok: fe TNT TTTTTT (6)
Decoded ok: 02 a3 02 00 00 00 00 00 TNT N (1)
Decoded ok: 02 a3 03 00 00 00 00 00 TNT T (1)
Decoded ok: 02 a3 00 00 00 00 00 80 TNT NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN (47)
Decoded ok: 02 a3 ff ff ff ff ff ff TNT TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT (47)
Decoded ok: 0d TIP no ip
Decoded ok: 2d 01 02 TIP 0x201
Decoded ok: 4d 01 02 03 04 TIP 0x4030201
Decoded ok: 6d 01 02 03 04 05 06 TIP 0x60504030201
Decoded ok: 8d 01 02 03 04 05 06 TIP 0x60504030201
Decoded ok: cd 01 02 03 04 05 06 07 08 TIP 0x807060504030201
Decoded ok: 11 TIP.PGE no ip
Decoded ok: 31 01 02 TIP.PGE 0x201
Decoded ok: 51 01 02 03 04 TIP.PGE 0x4030201
Decoded ok: 71 01 02 03 04 05 06 TIP.PGE 0x60504030201
Decoded ok: 91 01 02 03 04 05 06 TIP.PGE 0x60504030201
Decoded ok: d1 01 02 03 04 05 06 07 08 TIP.PGE 0x807060504030201
Decoded ok: 01 TIP.PGD no ip
Decoded ok: 21 01 02 TIP.PGD 0x201
Decoded ok: 41 01 02 03 04 TIP.PGD 0x4030201
Decoded ok: 61 01 02 03 04 05 06 TIP.PGD 0x60504030201
Decoded ok: 81 01 02 03 04 05 06 TIP.PGD 0x60504030201
Decoded ok: c1 01 02 03 04 05 06 07 08 TIP.PGD 0x807060504030201
Decoded ok: 1d FUP no ip
Decoded ok: 3d 01 02 FUP 0x201
Decoded ok: 5d 01 02 03 04 FUP 0x4030201
Decoded ok: 7d 01 02 03 04 05 06 FUP 0x60504030201
Decoded ok: 9d 01 02 03 04 05 06 FUP 0x60504030201
Decoded ok: dd 01 02 03 04 05 06 07 08 FUP 0x807060504030201
Decoded ok: 02 43 02 04 06 08 0a 0c PIP 0x60504030201 (NR=0)
Decoded ok: 02 43 03 04 06 08 0a 0c PIP 0x60504030201 (NR=1)
Decoded ok: 99 00 MODE.Exec 16
Decoded ok: 99 01 MODE.Exec 64
Decoded ok: 99 02 MODE.Exec 32
Decoded ok: 99 20 MODE.TSX TXAbort:0 InTX:0
Decoded ok: 99 21 MODE.TSX TXAbort:0 InTX:1
Decoded ok: 99 22 MODE.TSX TXAbort:1 InTX:0
Decoded ok: 02 83 TraceSTOP
Decoded ok: 02 03 12 00 CBR 0x12
Decoded ok: 19 01 02 03 04 05 06 07 TSC 0x7060504030201
Decoded ok: 59 12 MTC 0x12
Decoded ok: 02 73 00 00 00 00 00 TMA CTC 0x0 FC 0x0
Decoded ok: 02 73 01 02 00 00 00 TMA CTC 0x201 FC 0x0
Decoded ok: 02 73 00 00 00 ff 01 TMA CTC 0x0 FC 0x1ff
Decoded ok: 02 73 80 c0 00 ff 01 TMA CTC 0xc080 FC 0x1ff
Decoded ok: 03 CYC 0x0
Decoded ok: 0b CYC 0x1
Decoded ok: fb CYC 0x1f
Decoded ok: 07 02 CYC 0x20
Decoded ok: ff fe CYC 0xfff
Decoded ok: 07 01 02 CYC 0x1000
Decoded ok: ff ff fe CYC 0x7ffff
Decoded ok: 07 01 01 02 CYC 0x80000
Decoded ok: ff ff ff fe CYC 0x3ffffff
Decoded ok: 07 01 01 01 02 CYC 0x4000000
Decoded ok: ff ff ff ff fe CYC 0x1ffffffff
Decoded ok: 07 01 01 01 01 02 CYC 0x200000000
Decoded ok: ff ff ff ff ff fe CYC 0xffffffffff
Decoded ok: 07 01 01 01 01 01 02 CYC 0x10000000000
Decoded ok: ff ff ff ff ff ff fe CYC 0x7fffffffffff
Decoded ok: 07 01 01 01 01 01 01 02 CYC 0x800000000000
Decoded ok: ff ff ff ff ff ff ff fe CYC 0x3fffffffffffff
Decoded ok: 07 01 01 01 01 01 01 01 02 CYC 0x40000000000000
Decoded ok: ff ff ff ff ff ff ff ff fe CYC 0x1fffffffffffffff
Decoded ok: 07 01 01 01 01 01 01 01 01 02 CYC 0x2000000000000000
Decoded ok: ff ff ff ff ff ff ff ff ff 0e CYC 0xffffffffffffffff
Decoded ok: 02 c8 01 02 03 04 05 VMCS 0x504030201
Decoded ok: 02 f3 OVF
Decoded ok: 02 f3 OVF
Decoded ok: 02 f3 OVF
Decoded ok: 02 82 02 82 02 82 02 82 02 82 02 82 02 82 02 82 PSB
Decoded ok: 02 82 02 82 02 82 02 82 02 82 02 82 02 82 02 82 PSB
Decoded ok: 02 82 02 82 02 82 02 82 02 82 02 82 02 82 02 82 PSB
Decoded ok: 02 23 PSBEND
Decoded ok: 02 c3 88 01 02 03 04 05 06 07 00 MNT 0x7060504030201
Decoded ok: 02 12 01 02 03 04 PTWRITE 0x4030201 IP:0
Decoded ok: 02 32 01 02 03 04 05 06 07 08 PTWRITE 0x807060504030201 IP:0
Decoded ok: 02 92 01 02 03 04 PTWRITE 0x4030201 IP:1
Decoded ok: 02 b2 01 02 03 04 05 06 07 08 PTWRITE 0x807060504030201 IP:1
Decoded ok: 02 62 EXSTOP IP:0
Decoded ok: 02 e2 EXSTOP IP:1
Decoded ok: 02 c2 00 00 00 00 00 00 00 00 MWAIT 0x0 Hints 0x0 Extensions 0x0
Decoded ok: 02 c2 01 02 03 04 05 06 07 08 MWAIT 0x807060504030201 Hints 0x1 Extensions 0x1
Decoded ok: 02 c2 ff 02 03 04 07 06 07 08 MWAIT 0x8070607040302ff Hints 0xff Extensions 0x3
Decoded ok: 02 22 00 00 PWRE 0x0 HW:0 CState:0 Sub-CState:0
Decoded ok: 02 22 01 02 PWRE 0x201 HW:0 CState:0 Sub-CState:2
Decoded ok: 02 22 80 34 PWRE 0x3480 HW:1 CState:3 Sub-CState:4
Decoded ok: 02 22 00 56 PWRE 0x5600 HW:0 CState:5 Sub-CState:6
Decoded ok: 02 a2 00 00 00 00 00 PWRX 0x0 Last CState:0 Deepest CState:0 Wake Reason 0x0
Decoded ok: 02 a2 01 02 03 04 05 PWRX 0x504030201 Last CState:0 Deepest CState:1 Wake Reason 0x2
Decoded ok: 02 a2 ff ff ff ff ff PWRX 0xffffffffff Last CState:15 Deepest CState:15 Wake Reason 0xf
Decoded ok: 02 63 00 BBP SZ 8-byte Type 0x0
Decoded ok: 02 63 80 BBP SZ 4-byte Type 0x0
Decoded ok: 02 63 1f BBP SZ 8-byte Type 0x1f
Decoded ok: 02 63 9f BBP SZ 4-byte Type 0x1f
Decoded ok: 04 00 00 00 00 BIP ID 0x00 Value 0x0
Decoded ok: fc 00 00 00 00 BIP ID 0x1f Value 0x0
Decoded ok: 04 01 02 03 04 BIP ID 0x00 Value 0x4030201
Decoded ok: fc 01 02 03 04 BIP ID 0x1f Value 0x4030201
Decoded ok: 04 00 00 00 00 00 00 00 00 BIP ID 0x00 Value 0x0
Decoded ok: fc 00 00 00 00 00 00 00 00 BIP ID 0x1f Value 0x0
Decoded ok: 04 01 02 03 04 05 06 07 08 BIP ID 0x00 Value 0x807060504030201
Decoded ok: fc 01 02 03 04 05 06 07 08 BIP ID 0x1f Value 0x807060504030201
Decoded ok: 02 33 BEP IP:0
Decoded ok: 02 b3 BEP IP:1
Decoded ok: 02 33 BEP IP:0
Decoded ok: 02 b3 BEP IP:1
test child finished with 0
---- end ----
Intel PT packet decoder: Ok
#

Signed-off-by: Adrian Hunter <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf tools: Rename build libperf to perf

Rename build libperf to perf, because it's used to build perf.

The libperf build object name will be used for libperf library.

Signed-off-by: Jiri Olsa <jo

perf tools: Rename build libperf to perf

Rename build libperf to perf, because it's used to build perf.

The libperf build object name will be used for libperf library.

Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf tests: Add breakpoint modify tests

Adding to tests that aims on kernel breakpoint modification bugs.

First test creates HW breakpoint, tries to change it and checks it was
properly changed. It

perf tests: Add breakpoint modify tests

Adding to tests that aims on kernel breakpoint modification bugs.

First test creates HW breakpoint, tries to change it and checks it was
properly changed. It aims on kernel issue that prevents HW breakpoint to
be changed via ptrace interface.

The first test forks, the child sets itself as ptrace tracee and waits
in signal for parent to trace it, then it calls bp_1 and quits.

The parent does following steps:

- creates a new breakpoint (id 0) for bp_2 function
- changes that breakpoint to bp_1 function
- waits for the breakpoint to hit and checks
it has proper rip of bp_1 function

This test aims on an issue in kernel preventing to change disabled
breakpoints

Second test mimics the first one except for few steps
in the parent:
- creates a new breakpoint (id 0) for bp_1 function
- changes that breakpoint to bogus (-1) address
- waits for the breakpoint to hit and checks
it has proper rip of bp_1 function

This test aims on an issue in kernel disabling enabled
breakpoint after unsuccesful change.

Committer testing:

# uname -a
Linux jouet 4.18.0-rc8-00002-g1236568ee3cb #12 SMP Tue Aug 7 14:08:26 -03 2018 x86_64 x86_64 x86_64 GNU/Linux
# perf test -v "bp modify"
62: x86 bp modify :
--- start ---
test child forked, pid 25671
in bp_1
tracee exited prematurely 2
FAILED arch/x86/tests/bp-modify.c:209 modify test 1 failed

test child finished with -1
---- end ----
x86 bp modify: FAILED!
#

Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Milind Chabbi <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf tests: Remove Intel CQM perf test

Intel CQM perf test is obsolete for perf PMU code has been removed in
commit c39a0e2c8850 ("x86/perf/cqm: Wipe out perf based cqm").

Signed-off-by: Xiaochen S

perf tests: Remove Intel CQM perf test

Intel CQM perf test is obsolete for perf PMU code has been removed in
commit c39a0e2c8850 ("x86/perf/cqm: Wipe out perf based cqm").

Signed-off-by: Xiaochen Shen <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: Matt Fleming <[email protected]>
Cc: Pei P Jia <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Vikas Shivappa <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf tests: Add Intel CQM test

Peter reports that it's possible to trigger a WARN_ON_ONCE() in the
Intel CQM code by combining a hardware event and an Intel CQM
(software) event into a group. Unfort

perf tests: Add Intel CQM test

Peter reports that it's possible to trigger a WARN_ON_ONCE() in the
Intel CQM code by combining a hardware event and an Intel CQM
(software) event into a group. Unfortunately, the perf tools are not
able to create this bundle and we need to manually construct a test
case.

For posterity, record Peter's proof of concept test case in tools/perf
so that it presents a model for how we can perform architecture
specific tests, or "arch tests", in perf in the future.

The particular issue triggered in the test case is that when the
counter for the hardware event overflows and triggers a PMI we'll read
both the hardware event and the software event counters.
Unfortunately, for CQM that involves performing an IPI to read the CQM
event counters on all sockets, which in NMI context triggers the
WARN_ON_ONCE().

Reported-by: Peter Zijlstra <[email protected]>
Signed-off-by: Matt Fleming <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kanaka Juvva <[email protected]>
Cc: Vikas Shivappa <[email protected]>
Cc: Vince Weaver <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf tests: Move x86 tests into arch directory

Move out the x86-specific tests into tools/perf/arch/x86/tests and
define an 'arch_tests' array, which is the list of tests that only apply
to the buil

perf tests: Move x86 tests into arch directory

Move out the x86-specific tests into tools/perf/arch/x86/tests and
define an 'arch_tests' array, which is the list of tests that only apply
to the build architecture.

We can also now begin to get rid of some of the #ifdef code that is
present in the generic perf tests.

Signed-off-by: Matt Fleming <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kanaka Juvva <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Vikas Shivappa <[email protected]>
Cc: Vince Weaver <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf tests: Add arch tests

Tests that only make sense for some architectures currently live in
the same place as the generic tests. Move out the x86-specific tests
into tools/perf/arch/x86/tests and

perf tests: Add arch tests

Tests that only make sense for some architectures currently live in
the same place as the generic tests. Move out the x86-specific tests
into tools/perf/arch/x86/tests and define an 'arch_tests' array, which
is the list of tests that only apply to the build architecture.

The main idea is to encourage developers to add arch tests to build
out perf's test coverage, without dumping everything in
tools/perf/tests.

Signed-off-by: Matt Fleming <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kanaka Juvva <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Vikas Shivappa <[email protected]>
Cc: Vince Weaver <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...

perf build: Add arch x86 objects building

Move the x86 arch objects building under build framework to be included
in the libperf build object.

Adding also arch/$(ARCH)/Build files for the rest of t

perf build: Add arch x86 objects building

Move the x86 arch objects building under build framework to be included
in the libperf build object.

Adding also arch/$(ARCH)/Build files for the rest of the archs. The
reason for this is that in arch/Build we now do:

+libperf-y += $(ARCH)/

which would make the build to fail on other architectures, because the
build framework requires 'Build' file in nested directories and this
patch adds it only for x86.

Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Sukadev Bhattiprolu <[email protected]>
Tested-by: Will Deacon <[email protected]>
Cc: Alexis Berlemont <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...