I removed direct I/O to be used by default, since I wanted to investigate
what is the dependence between direct I/O and CPU load. It seems that
there is some influence between hackbench and direct I/O apps.
scp sdp$NUM.txt glab:frescor/demo/$BUILD
-ssh -t glab "cd frescor/demo/$BUILD; sudo ./_compiled/bin/recorder -i sdp$NUM.txt -y -vframes 500 stream$NUM.mp4 #-renegotiate $((NUM*100))" 2>&1 \
+ssh -t glab "cd frescor/demo/$BUILD; sudo ./_compiled/bin/recorder -direct -i sdp$NUM.txt -y -vframes 500 stream$NUM.mp4 #-renegotiate $((NUM*100))" 2>&1 \
| perl -ne '$result=$_ if m/interframe interval/;
END { open FILE, ">", "result-rec-$ENV{q{NUM}}"; print FILE "$result\n"; }'