1#!/bin/sh
2platform=$1
3LIBUNWIND=../src/.libs/libunwind.so
4LIBUNWIND_PLAT=../src/.libs/libunwind-$platform.so
5warmup=$(./forker 2000 /bin/true | cut -f1 -d' ')
6
7nsec1=$(./forker 2000 /bin/true | cut -f1 -d' ')
8printf "\"/bin/true\"\t\t\t\t\t\t: $nsec1 nsec/execution\n"
9
10nsec2=$(LD_PRELOAD=$LIBUNWIND ./forker 2000 /bin/true | cut -f1 -d' ')
11printf "\"LD_PRELOAD=$LIBUNWIND /bin/true\"\t: $nsec2 nsec/execution\n"
12
13nsec3=$(LD_PRELOAD=$LIBUNWIND_PLAT ./forker 2000 /bin/true | cut -f1 -d' ')
14printf "\"LD_PRELOAD=$LIBUNWIND_PLAT /bin/true\"\t: $nsec3 nsec/execution\n"
15
16echo
17
18printf "Overhead of preloading $LIBUNWIND\t: $(($nsec2 - $nsec1)) nsec\n"
19printf "Overhead of preloading $LIBUNWIND_PLAT\t: $(($nsec3 - $nsec1)) nsec\n"
20