2 vv_dir=$(dirname $(readlink -e $(which $0)))
3 echo vv directory: $vv_dir
8 rm mem_use 2>>/dev/null
9 killall -s SIGCONT make
12 echo "Terminated, exiting..."
18 trap handle_exit SIGINT
19 available_mem=$(cat /proc/meminfo | grep MemTotal | grep -o [0-9]*)
20 if [ -a "memory_exhausted_lock" ]
22 echo "Running in memory conservation mode..."
23 max_cpp_process_mem_use=1600000
24 cpus=$(( $available_mem / $max_cpp_process_mem_use ))
25 echo "Using $cpus cpu(s) should be safe..."
28 else #use all the available computing power by default
29 cpus=$(( $(cat /proc/cpuinfo | grep -c ^processor) + 0 ))
33 make_pid=$(jobs -p %make)
34 #watch memory use to avoid crashes
35 while ps $make_pid >>/dev/null
37 if [ x"$(ps aux | grep cc1plus | grep -v grep | wc -l)" != x0 ]
39 ps ax -o vsize,comm | grep cc1plus | grep -o "\<[0-9]*\>" > mem_use
40 used_mem=$(awk 'BEGIN {sum=0;} {sum+=$1;} END {print sum;}' mem_use)
41 if (( "$used_mem"> ($available_mem - 300) ))
43 touch memory_exhausted_lock
44 echo "Stopping due to exagerated memory use ( $used_mem )"
46 elif (( "$used_mem"> ($available_mem/2) ))
48 if [ x$high_mem != xtrue ]
50 echo "Warning, high memory use, not spawning any more compilation jobs... ( $used_mem )"
51 killall -s SIGSTOP make
52 killall -s SIGCONT cc1plus
56 echo mem $used_mem / $available_mem
57 elif [ x$high_mem = xtrue ] && (( $(date +%s) > ( $date_mem + 5 ) ))
59 echo "Memory use back to normal"
61 killall -s SIGCONT make
67 rm memory_exhausted_lock 2>>/dev/null