diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/sys/common/erl_poll.c | 4 | ||||
| -rw-r--r-- | erts/etc/unix/cerl.src | 15 |
2 files changed, 16 insertions, 3 deletions
diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c index 5861b30315..7676d8872a 100644 --- a/erts/emulator/sys/common/erl_poll.c +++ b/erts/emulator/sys/common/erl_poll.c @@ -123,8 +123,8 @@ static ERTS_INLINE int ERTS_SELECT(int nfds, ERTS_fd_set *readfds, ERTS_fd_set *writefds, ERTS_fd_set *exceptfds, struct timeval *timeout) { - ASSERT(!readfds || readfds->sz >= nfds); - ASSERT(!writefds || writefds->sz >= nfds); + ASSERT(!readfds || readfds->sz >= ERTS_FD_SIZE(nfds)); + ASSERT(!writefds || writefds->sz >= ERTS_FD_SIZE(nfds)); ASSERT(!exceptfds); return select(nfds, (readfds ? readfds->ptr : NULL ), 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 |