diff options
| author | Peter Andersson <[email protected]> | 2013-09-05 15:47:50 +0200 |
|---|---|---|
| committer | Peter Andersson <[email protected]> | 2013-09-05 15:47:50 +0200 |
| commit | fce30eefb8c805c0597f873b612aadb59bf4ffc9 (patch) | |
| tree | 5c8fc534748a570802e603f025155c6d37325cac /erts/etc | |
| parent | 4f045e2e0b3cb01a94ddb5d00b5ee66b798dc69b (diff) | |
| parent | a49cb1b7492b4c34f5887eaa0cb7774c693a524d (diff) | |
| download | otp-fce30eefb8c805c0597f873b612aadb59bf4ffc9.tar.gz otp-fce30eefb8c805c0597f873b612aadb59bf4ffc9.tar.bz2 otp-fce30eefb8c805c0597f873b612aadb59bf4ffc9.zip | |
Merge branch 'maint'
Diffstat (limited to 'erts/etc')
| -rw-r--r-- | erts/etc/unix/cerl.src | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src index 0d45917e4b..41baa323ed 100644 --- a/erts/etc/unix/cerl.src +++ b/erts/etc/unix/cerl.src @@ -283,6 +283,19 @@ if [ "x$GDB" = "x" ]; then else valgrind_misc_flags="$VALGRIND_MISC_FLAGS" fi + if which taskset > /dev/null && test -e /proc/cpuinfo; then + # We only let valgrind utilize one core with "taskset 1" as it can be very slow + # on multiple cores (especially with async threads). Valgrind only run one pthread + # at a time anyway so there is no point letting it utilize more than one core. + # Use $sched_arg to force all schedulers online to emulate multicore. + taskset1="taskset 1" + ncpu=`cat /proc/cpuinfo | grep -w processor | wc -l` + sched_arg="-S$ncpu:$ncpu" + else + taskset1= + sched_arg= + fi + beam_args=`$EXEC -emu_args_exit ${1+"$@"}` # Time for some argument passing voodoo: @@ -293,7 +306,7 @@ if [ "x$GDB" = "x" ]; then ' set -- $beam_args IFS="$SAVE_IFS" - exec valgrind $valgrind_xml $valgrind_log $valgrind_misc_flags $BINDIR/$EMU_NAME $emu_xargs "$@" -pz $PRELOADED + exec $taskset1 valgrind $valgrind_xml $valgrind_log $valgrind_misc_flags $BINDIR/$EMU_NAME $sched_arg $emu_xargs "$@" -pz $PRELOADED else exec $EXEC $eeargs $xargs ${1+"$@"} fi |