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Commit 6b5c0cc5 authored by Wuttke, Joachim's avatar Wuttke, Joachim
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Notes on Linux tool perf

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dev-tools/profiling/README
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...@@ -11,6 +11,7 @@ There are several ways of code profiling: ...@@ -11,6 +11,7 @@ There are several ways of code profiling:
---------------------------------------------------------- ----------------------------------------------------------
Profiling with valgrind Profiling with valgrind
---------------------------------------------------------- ----------------------------------------------------------
1) Compile BornAgain as usuall and simply run 1) Compile BornAgain as usuall and simply run
./run_valgrind.sh ./run_valgrind.sh
...@@ -49,3 +50,14 @@ run_gperftools.sh ...@@ -49,3 +50,14 @@ run_gperftools.sh
---------------------------------------------------------- ----------------------------------------------------------
Profiling with perf Profiling with perf
---------------------------------------------------------- ----------------------------------------------------------
Under Linux.
Install Debian package linux-perf.
echo "-1" >/proc/sys/kernel/perf_event_paranoid
perf stat <any performance test>
perf record -o /tmp/perf.out <any performance test>
perf report -i /tmp/perf.out
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