Merge branch 'bw/protocol-v2'
[git] / t / perf / bisect_run_script
1 #!/bin/sh
2
3 script="$1"
4 test_number="$2"
5 info_dir="$3"
6
7 # This aborts the bisection immediately
8 die () {
9         echo >&2 "error: $*"
10         exit 255
11 }
12
13 bisect_head=$(git rev-parse --verify BISECT_HEAD) || die "Failed to find BISECT_HEAD ref"
14
15 script_number=$(echo "$script" | sed -e "s/^p\([0-9]*\).*\$/\1/") || die "Failed to get script number for '$script'"
16
17 oldtime=$(cat "$info_dir/oldtime") || die "Failed to access '$info_dir/oldtime'"
18 newtime=$(cat "$info_dir/newtime") || die "Failed to access '$info_dir/newtime'"
19
20 cd t/perf || die "Failed to cd into 't/perf'"
21
22 result_file="$info_dir/perf_${script_number}_${bisect_head}_results.txt"
23
24 GIT_PERF_DIRS_OR_REVS="$bisect_head"
25 export GIT_PERF_DIRS_OR_REVS
26
27 ./run "$script" >"$result_file" 2>&1 || die "Failed to run perf test '$script'"
28
29 rtime=$(sed -n "s/^$script_number\.$test_number:.*\([0-9]\+\.[0-9]\+\)(.*).*\$/\1/p" "$result_file")
30
31 echo "newtime: $newtime"
32 echo "rtime: $rtime"
33 echo "oldtime: $oldtime"
34
35 # Compare ($newtime - $rtime) with ($rtime - $oldtime)
36 # Times are decimal number, not integers
37
38 if test $(echo "$newtime" "$rtime" "$oldtime" | awk '{ print ($1 - $2 > $2 - $3) }') = 1
39 then
40         # Current commit is considered "good/old"
41         echo "$rtime" >"$info_dir/oldtime"
42         exit 0
43 else
44         # Current commit is considered "bad/new"
45         echo "$rtime" >"$info_dir/newtime"
46         exit 1
47 fi