t/perf/p5302-pack-index.sh

   1 #!/bin/sh
   2
   3 test_description="Tests index-pack performance"
   4
   5 . ./perf-lib.sh
   6
   7 test_perf_large_repo
   8
   9 test_expect_success 'repack' '
  10         git repack -ad &&
  11         PACK=$(ls .git/objects/pack/*.pack | head -n1) &&
  12         test -f "$PACK" &&
  13         export PACK
  14 '
  15
  16 # Rather than counting up and doubling each time, count down from the endpoint,
  17 # halving each time. That ensures that our final test uses as many threads as
  18 # CPUs, even if it isn't a power of 2.
  19 test_expect_success 'set up thread-counting tests' '
  20         t=$(test-tool online-cpus) &&
  21         threads= &&
  22         while test $t -gt 0
  23         do
  24                 threads="$t $threads"
  25                 t=$((t / 2))
  26         done
  27 '
  28
  29 test_perf PERF_EXTRA 'index-pack 0 threads' '
  30         rm -rf repo.git &&
  31         git init --bare repo.git &&
  32         GIT_DIR=repo.git git index-pack --threads=1 --stdin < $PACK
  33 '
  34
  35 for t in $threads
  36 do
  37         THREADS=$t
  38         export THREADS
  39         test_perf PERF_EXTRA "index-pack $t threads" '
  40                 rm -rf repo.git &&
  41                 git init --bare repo.git &&
  42                 GIT_DIR=repo.git GIT_FORCE_THREADS=1 \
  43                 git index-pack --threads=$THREADS --stdin <$PACK
  44         '
  45 done
  46
  47 test_perf 'index-pack default number of threads' '
  48         rm -rf repo.git &&
  49         git init --bare repo.git &&
  50         GIT_DIR=repo.git git index-pack --stdin < $PACK
  51 '
  52
  53 test_done