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linux/tools/perf/tests/workloads/leafloop.c

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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 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 <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20221116233854.1596378-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 15:38:47 -08:00
perf test: Make test_arm_callgraph_fp.sh more robust The 2 second sleep can cause the test to fail on very slow network file systems because Perf ends up being killed before it finishes starting up. Fix it by making the leafloop workload end after a fixed time like the other workloads so there is no need to kill it after 2 seconds. Also remove the 1 second start sampling delay because it is similarly fragile. Instead, search through all samples for a matching one, rather than just checking the first sample and hoping it's in the right place. Fixes: cd6382d82752 ("perf test arm64: Test unwinding using fame-pointer (fp) mode") Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: German Gomez <german.gomez@arm.com> Cc: Spoorthy S <spoorts2@in.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240612140316.3006660-1-james.clark@arm.com
2024-06-12 15:03:14 +01:00
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 <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20221116233854.1596378-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 15:38:47 -08:00
perf test: Make test_arm_callgraph_fp.sh more robust The 2 second sleep can cause the test to fail on very slow network file systems because Perf ends up being killed before it finishes starting up. Fix it by making the leafloop workload end after a fixed time like the other workloads so there is no need to kill it after 2 seconds. Also remove the 1 second start sampling delay because it is similarly fragile. Instead, search through all samples for a matching one, rather than just checking the first sample and hoping it's in the right place. Fixes: cd6382d82752 ("perf test arm64: Test unwinding using fame-pointer (fp) mode") Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: German Gomez <german.gomez@arm.com> Cc: Spoorthy S <spoorts2@in.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240612140316.3006660-1-james.clark@arm.com
2024-06-12 15:03:14 +01:00
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 <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20221116233854.1596378-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 15:38:47 -08:00
perf test: Make test_arm_callgraph_fp.sh more robust The 2 second sleep can cause the test to fail on very slow network file systems because Perf ends up being killed before it finishes starting up. Fix it by making the leafloop workload end after a fixed time like the other workloads so there is no need to kill it after 2 seconds. Also remove the 1 second start sampling delay because it is similarly fragile. Instead, search through all samples for a matching one, rather than just checking the first sample and hoping it's in the right place. Fixes: cd6382d82752 ("perf test arm64: Test unwinding using fame-pointer (fp) mode") Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: German Gomez <german.gomez@arm.com> Cc: Spoorthy S <spoorts2@in.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240612140316.3006660-1-james.clark@arm.com
2024-06-12 15:03:14 +01:00
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 <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20221116233854.1596378-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 15:38:47 -08:00
perf test: Make test_arm_callgraph_fp.sh more robust The 2 second sleep can cause the test to fail on very slow network file systems because Perf ends up being killed before it finishes starting up. Fix it by making the leafloop workload end after a fixed time like the other workloads so there is no need to kill it after 2 seconds. Also remove the 1 second start sampling delay because it is similarly fragile. Instead, search through all samples for a matching one, rather than just checking the first sample and hoping it's in the right place. Fixes: cd6382d82752 ("perf test arm64: Test unwinding using fame-pointer (fp) mode") Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: German Gomez <german.gomez@arm.com> Cc: Spoorthy S <spoorts2@in.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240612140316.3006660-1-james.clark@arm.com
2024-06-12 15:03:14 +01:00
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 <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20221116233854.1596378-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 15:38:47 -08:00
perf test: Make test_arm_callgraph_fp.sh more robust The 2 second sleep can cause the test to fail on very slow network file systems because Perf ends up being killed before it finishes starting up. Fix it by making the leafloop workload end after a fixed time like the other workloads so there is no need to kill it after 2 seconds. Also remove the 1 second start sampling delay because it is similarly fragile. Instead, search through all samples for a matching one, rather than just checking the first sample and hoping it's in the right place. Fixes: cd6382d82752 ("perf test arm64: Test unwinding using fame-pointer (fp) mode") Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: German Gomez <german.gomez@arm.com> Cc: Spoorthy S <spoorts2@in.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240612140316.3006660-1-james.clark@arm.com
2024-06-12 15:03:14 +01:00
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 <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20221116233854.1596378-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 15:38:47 -08:00
perf test: Make test_arm_callgraph_fp.sh more robust The 2 second sleep can cause the test to fail on very slow network file systems because Perf ends up being killed before it finishes starting up. Fix it by making the leafloop workload end after a fixed time like the other workloads so there is no need to kill it after 2 seconds. Also remove the 1 second start sampling delay because it is similarly fragile. Instead, search through all samples for a matching one, rather than just checking the first sample and hoping it's in the right place. Fixes: cd6382d82752 ("perf test arm64: Test unwinding using fame-pointer (fp) mode") Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: German Gomez <german.gomez@arm.com> Cc: Spoorthy S <spoorts2@in.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240612140316.3006660-1-james.clark@arm.com
2024-06-12 15:03:14 +01:00
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 <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20221116233854.1596378-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 15:38:47 -08:00
perf test: Make test_arm_callgraph_fp.sh more robust The 2 second sleep can cause the test to fail on very slow network file systems because Perf ends up being killed before it finishes starting up. Fix it by making the leafloop workload end after a fixed time like the other workloads so there is no need to kill it after 2 seconds. Also remove the 1 second start sampling delay because it is similarly fragile. Instead, search through all samples for a matching one, rather than just checking the first sample and hoping it's in the right place. Fixes: cd6382d82752 ("perf test arm64: Test unwinding using fame-pointer (fp) mode") Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: German Gomez <german.gomez@arm.com> Cc: Spoorthy S <spoorts2@in.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240612140316.3006660-1-james.clark@arm.com
2024-06-12 15:03:14 +01:00
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 <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20221116233854.1596378-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-16 15:38:47 -08:00