t/perf/p6300-for-each-ref.sh

   1 #!/bin/sh
   2
   3 test_description='performance of for-each-ref'
   4 . ./perf-lib.sh
   5
   6 test_perf_fresh_repo
   7
   8 ref_count_per_type=10000
   9 test_iteration_count=10
  10
  11 test_expect_success "setup" '
  12         test_commit_bulk $(( 1 + $ref_count_per_type )) &&
  13
  14         # Create refs
  15         test_seq $ref_count_per_type |
  16                 sed "s,.*,update refs/heads/branch_& HEAD~&\nupdate refs/custom/special_& HEAD~&," |
  17                 git update-ref --stdin &&
  18
  19         # Create annotated tags
  20         for i in $(test_seq $ref_count_per_type)
  21         do
  22                 # Base tags
  23                 echo "tag tag_$i" &&
  24                 echo "mark :$i" &&
  25                 echo "from HEAD~$i" &&
  26                 printf "tagger %s <%s> %s\n" \
  27                         "$GIT_COMMITTER_NAME" \
  28                         "$GIT_COMMITTER_EMAIL" \
  29                         "$GIT_COMMITTER_DATE" &&
  30                 echo "data <<EOF" &&
  31                 echo "tag $i" &&
  32                 echo "EOF" &&
  33
  34                 # Nested tags
  35                 echo "tag nested_$i" &&
  36                 echo "from :$i" &&
  37                 printf "tagger %s <%s> %s\n" \
  38                         "$GIT_COMMITTER_NAME" \
  39                         "$GIT_COMMITTER_EMAIL" \
  40                         "$GIT_COMMITTER_DATE" &&
  41                 echo "data <<EOF" &&
  42                 echo "nested tag $i" &&
  43                 echo "EOF" || return 1
  44         done | git fast-import
  45 '
  46
  47 test_for_each_ref () {
  48         title="for-each-ref"
  49         if test $# -gt 0; then
  50                 title="$title ($1)"
  51                 shift
  52         fi
  53         args="$@"
  54
  55         test_perf "$title" "
  56                 for i in \$(test_seq $test_iteration_count); do
  57                         git for-each-ref $args >/dev/null
  58                 done
  59         "
  60 }
  61
  62 run_tests () {
  63         test_for_each_ref "$1"
  64         test_for_each_ref "$1, no sort" --no-sort
  65         test_for_each_ref "$1, --count=1" --count=1
  66         test_for_each_ref "$1, --count=1, no sort" --no-sort --count=1
  67         test_for_each_ref "$1, tags" refs/tags/
  68         test_for_each_ref "$1, tags, no sort" --no-sort refs/tags/
  69         test_for_each_ref "$1, tags, dereferenced" '--format="%(refname) %(objectname) %(*objectname)"' refs/tags/
  70         test_for_each_ref "$1, tags, dereferenced, no sort" --no-sort '--format="%(refname) %(objectname) %(*objectname)"' refs/tags/
  71
  72         test_perf "for-each-ref ($1, tags) + cat-file --batch-check (dereferenced)" "
  73                 for i in \$(test_seq $test_iteration_count); do
  74                         git for-each-ref --format='%(objectname)^{} %(refname) %(objectname)' refs/tags/ | \
  75                                 git cat-file --batch-check='%(objectname) %(rest)' >/dev/null
  76                 done
  77         "
  78 }
  79
  80 run_tests "loose"
  81
  82 test_expect_success 'pack refs' '
  83         git pack-refs --all
  84 '
  85 run_tests "packed"
  86
  87 test_done