/tmp/startup.odt (empty doc with:
sub Main
Shell("killall sleep")
end sub
as the Open event macro, Low macro security setting),
/tmp/a.sh contains:
#!/bin/sh
DISPLAY=localhost:0 oowriter /tmp/startup.odt > /dev/null 2>&1 &
sleep 1200
and modified timing.c, such that it waits for user input
from stdin after every invocation is measured.  unprelinked
numbers are each from ./timing.modified -c 10 -n /tmp/a.sh,
prelinked from ./timing.modified -c 20 -n /tmp/a.sh.

unprelinked

.hash
minimum: 1.715100000 sec real / 0.000051953 sec CPU
maximum: 1.774593000 sec real / 0.000058803 sec CPU
average: 1.731386200 sec real / 0.000054716 sec CPU
stdev  : 0.016703570 sec real / 0.000002011 sec CPU

take1
minimum: 1.336888000 sec real / 0.000052909 sec CPU
maximum: 1.376870000 sec real / 0.000062253 sec CPU
average: 1.348290500 sec real / 0.000056337 sec CPU
stdev  : 0.011036217 sec real / 0.000002695 sec CPU

take2
minimum: 1.306500000 sec real / 0.000052635 sec CPU
maximum: 1.327990000 sec real / 0.000060805 sec CPU
average: 1.316566200 sec real / 0.000056985 sec CPU
stdev  : 0.007522361 sec real / 0.000002221 sec CPU

take3
minimum: 1.229256000 sec real / 0.000051459 sec CPU
maximum: 1.330513000 sec real / 0.000057706 sec CPU
average: 1.285629900 sec real / 0.000055250 sec CPU
stdev  : 0.026779805 sec real / 0.000001934 sec CPU

take4
minimum: 1.120778000 sec real / 0.000054010 sec CPU
maximum: 1.296930000 sec real / 0.000062093 sec CPU
average: 1.195947600 sec real / 0.000057423 sec CPU
stdev  : 0.048721391 sec real / 0.000002233 sec CPU

prelinked

.hash
minimum: 1.338352000 sec real / 0.000050213 sec CPU
maximum: 1.358660000 sec real / 0.000059908 sec CPU
average: 1.348639650 sec real / 0.000055596 sec CPU
stdev  : 0.005795022 sec real / 0.000002687 sec CPU

take1
minimum: 1.097255000 sec real / 0.000054104 sec CPU
maximum: 1.204971000 sec real / 0.000061802 sec CPU
average: 1.160938850 sec real / 0.000056718 sec CPU
stdev  : 0.040502782 sec real / 0.000002018 sec CPU

take2
minimum: 1.078807000 sec real / 0.000053083 sec CPU
maximum: 1.181643000 sec real / 0.000063952 sec CPU
average: 1.147430150 sec real / 0.000056455 sec CPU
stdev  : 0.034557199 sec real / 0.000002833 sec CPU

take3
minimum: 1.056688000 sec real / 0.000046743 sec CPU
maximum: 1.161373000 sec real / 0.000070731 sec CPU
average: 1.133688450 sec real / 0.000057349 sec CPU
stdev  : 0.027867890 sec real / 0.000004267 sec CPU

take4
minimum: 1.024210000 sec real / 0.000053391 sec CPU
maximum: 1.143304000 sec real / 0.000061477 sec CPU
average: 1.099958300 sec real / 0.000056757 sec CPU
stdev  : 0.031722271 sec real / 0.000002175 sec CPU