perf test: Add landlock workload

We'll use it to add a regression test for the BTF augmentation of enum
arguments for tracepoints in 'perf trace':

root@x1:~# perf trace -e landlock_add_rule perf

perf test: Add landlock workload

We'll use it to add a regression test for the BTF augmentation of enum
arguments for tracepoints in 'perf trace':

root@x1:~# perf trace -e landlock_add_rule perf test -w landlock
0.000 ( 0.009 ms): perf/747160 landlock_add_rule(ruleset_fd: 11, rule_type: LANDLOCK_RULE_PATH_BENEATH, rule_attr: 0x7ffd8e258594, flags: 45) = -1 EINVAL (Invalid argument)
0.011 ( 0.002 ms): perf/747160 landlock_add_rule(ruleset_fd: 11, rule_type: LANDLOCK_RULE_NET_PORT, rule_attr: 0x7ffd8e2585a0, flags: 45) = -1 EINVAL (Invalid argument)
root@x1:~#

Committer notes:

It was agreed on the discussion (see Link below) to shorten then name of
the workload from 'landlock_add_rule' to 'landlock', and I moved it to a
separate patch.

Also, to address a build failure from Namhyung, I stopped loading
linux/landlock.h and instead added the used defines, enums and types to
make this build in older systems. All we want is to emit the syscall and
intercept it.

Suggested-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Howard Chu <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/lkml/CAH0uvohaypdTV6Z7O5QSK+va_qnhZ6BP6oSJ89s1c1E0CjgxDA@mail.gmail.com
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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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]

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perf test: Add 'datasym' test workload

The datasym workload is to check if perf mem command gets the data
addresses precisely. This is needed for data symbol test.

$ perf test -w datasym

I had

perf test: Add 'datasym' test workload

The datasym workload is to check if perf mem command gets the data
addresses precisely. This is needed for data symbol test.

$ perf test -w datasym

I had to keep the buf1 in the data section, otherwise it could end
up in the BSS and was mmaped as a separate //anon region, then it
was not symbolized at all. It needs to be fixed separately.

Committer notes:

Add a -U _FORTIFY_SOURCE to the datasym CFLAGS, as the main perf flags
set it and it requires building with optimization, and this new test has
a -O0.

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Zhengjun Xing <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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perf test: Add 'brstack' test workload

The brstack is to run different kinds of branches repeatedly. This is
necessary for brstack test case to verify if it has correct branch info.

$ perf test

perf test: Add 'brstack' test workload

The brstack is to run different kinds of branches repeatedly. This is
necessary for brstack test case to verify if it has correct branch info.

$ perf test -w brstack

I renamed the internal functions to have brstack_ prefix as it's too
generic name.

Add a -U_FORTIFY_SOURCE to the brstack CFLAGS, as the main perf flags
set it and it requires building with optimization, and this new test has
a -O0.

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Zhengjun Xing <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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perf test: Add 'sqrtloop' test workload

The sqrtloop creates a child process to run an infinite loop calling
sqrt() with rand(). This is needed for ARM SPE fork test.

$ perf test -w sqrtloop

It

perf test: Add 'sqrtloop' test workload

The sqrtloop creates a child process to run an infinite loop calling
sqrt() with rand(). This is needed for ARM SPE fork test.

$ perf test -w sqrtloop

It can take an optional argument to specify how long it will run in
seconds (default: 1).

Committer notes:

Explicitely ignored the sqrt() return to fix the build on systems where
the compiler complains it isn't being used.

And added a sqrtloop specific CFLAGS to disable optimizations to make
this a bit more robust wrt dead code elimination.

Doing that a -U_FORTIFY_SOURCE needs to be added, as -O0 is incompatible
with it.

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Zhengjun Xing <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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perf test: Add 'leafloop' test workload

The leafloop workload is to run an infinite loop in the test_leaf
function. This is needed for the ARM fp callgraph test to verify if it
gets the correct cal

perf test: Add 'leafloop' test workload

The leafloop workload is to run an infinite loop in the test_leaf
function. This is needed for the ARM fp callgraph test to verify if it
gets the correct callchains.

$ perf test -w leafloop

Committer notes:

Add a:

-U_FORTIFY_SOURCE

to the leafloop CFLAGS as the main perf flags set it and it requires
building with optimization, and this new test has a -O0.

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Zhengjun Xing <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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perf test: Add 'thloop' test workload

The thloop is similar to noploop but runs in two threads. This is
needed to verify perf record --per-thread to handle multi-threaded
programs properly.

$ pe

perf test: Add 'thloop' test workload

The thloop is similar to noploop but runs in two threads. This is
needed to verify perf record --per-thread to handle multi-threaded
programs properly.

$ perf test -w thloop

It also takes an optional argument to specify runtime in seconds
(default: 1).

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Zhengjun Xing <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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perf test: Add -w/--workload option

The -w/--workload option is to run a simple workload used by testing.
This adds a basic framework to run the workloads and 'noploop' workload
as an example.

$

perf test: Add -w/--workload option

The -w/--workload option is to run a simple workload used by testing.
This adds a basic framework to run the workloads and 'noploop' workload
as an example.

$ perf test -w noploop

The noploop does a loop doing nothing (NOP) for a second by default.
It can have an optional argument to specify the time in seconds.

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Zhengjun Xing <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

show more ...