Comment 5 for bug 1747769

# uname -a; dd if=/dev/xvda iflag=direct bs=16384 of=/dev/null & DD_PID=$!; sleep 1 && ./getdelays -di -p $DD_PID; kill $DD_PID; wait
Linux hostname-redacted 4.13.0-32-generic #35~lp1747769 SMP Thu Feb 8 17:37:46 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
[1] 9578
print delayacct stats ON
printing IO accounting
PID 9578

CPU count real total virtual total delay total delay average
                 2621 0 23341678 709838 0.000ms
IO count delay total delay average
                 2620 975185892 0ms
SWAP count delay total delay average
                    0 0 0ms
RECLAIM count delay total delay average
                    0 0 0ms
dd: read=42942464, write=0, cancelled_write=0
[1]+ Terminated dd if=/dev/xvda iflag=direct bs=16384 of=/dev/null