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)) || return 1
  26         done
  27 '
  28
  29 test_perf 'index-pack 0 threads' --prereq PERF_EXTRA \
  30         --setup 'rm -rf repo.git && git init --bare repo.git' '
  31         GIT_DIR=repo.git git index-pack --threads=1 --stdin < $PACK
  32 '
  33
  34 for t in $threads
  35 do
  36         THREADS=$t
  37         export THREADS
  38         test_perf "index-pack $t threads" --prereq PERF_EXTRA \
  39                 --setup 'rm -rf repo.git && git init --bare repo.git' '
  40                 GIT_DIR=repo.git GIT_FORCE_THREADS=1 \
  41                 git index-pack --threads=$THREADS --stdin <$PACK
  42         '
  43 done
  44
  45 test_perf 'index-pack default number of threads' \
  46         --setup 'rm -rf repo.git && git init --bare repo.git' '
  47         GIT_DIR=repo.git git index-pack --stdin < $PACK
  48 '
  49
  50 test_done