t/perf/p7821-grep-engines-fixed.sh

   1 #!/bin/sh
   2
   3 test_description="Comparison of git-grep's regex engines with -F
   4
   5 Set GIT_PERF_7821_GREP_OPTS in the environment to pass options to
   6 git-grep. Make sure to include a leading space,
   7 e.g. GIT_PERF_7821_GREP_OPTS=' -w'. See p7820-grep-engines.sh for more
   8 options to try.
   9
  10 If GIT_PERF_7821_THREADS is set to a list of threads (e.g. '1 4 8'
  11 etc.) we will test the patterns under those numbers of threads.
  12 "
  13
  14 . ./perf-lib.sh
  15
  16 test_perf_large_repo
  17 test_checkout_worktree
  18
  19 if test -n "$GIT_PERF_GREP_THREADS"
  20 then
  21         test_set_prereq PERF_GREP_ENGINES_THREADS
  22 fi
  23
  24 for pattern in 'int' 'uncommon' 'æ'
  25 do
  26         for engine in fixed basic extended perl
  27         do
  28                 if test $engine = "perl" && ! test_have_prereq PCRE
  29                 then
  30                         prereq="PCRE"
  31                 else
  32                         prereq=""
  33                 fi
  34                 if ! test_have_prereq PERF_GREP_ENGINES_THREADS
  35                 then
  36                         test_perf $prereq "$engine grep$GIT_PERF_7821_GREP_OPTS $pattern" "
  37                                 git -c grep.patternType=$engine grep$GIT_PERF_7821_GREP_OPTS $pattern >'out.$engine' || :
  38                         "
  39                 else
  40                         for threads in $GIT_PERF_GREP_THREADS
  41                         do
  42                                 test_perf PTHREADS,$prereq "$engine grep$GIT_PERF_7821_GREP_OPTS $pattern with $threads threads" "
  43                                         git -c grep.patternType=$engine -c grep.threads=$threads grep$GIT_PERF_7821_GREP_OPTS $pattern >'out.$engine.$threads' || :
  44                                 "
  45                         done
  46                 fi
  47         done
  48
  49         if ! test_have_prereq PERF_GREP_ENGINES_THREADS
  50         then
  51                 test_expect_success "assert that all engines found the same for$GIT_PERF_7821_GREP_OPTS $pattern" '
  52                         test_cmp out.fixed out.basic &&
  53                         test_cmp out.fixed out.extended &&
  54                         if test_have_prereq PCRE
  55                         then
  56                                 test_cmp out.fixed out.perl
  57                         fi
  58                 '
  59         else
  60                 for threads in $GIT_PERF_GREP_THREADS
  61                 do
  62                         test_expect_success PTHREADS "assert that all engines found the same for$GIT_PERF_7821_GREP_OPTS $pattern under threading" "
  63                                 test_cmp out.fixed.$threads out.basic.$threads &&
  64                                 test_cmp out.fixed.$threads out.extended.$threads &&
  65                                 if test_have_prereq PCRE
  66                                 then
  67                                         test_cmp out.fixed.$threads out.perl.$threads
  68                                 fi
  69                         "
  70                 done
  71         fi
  72 done
  73
  74 test_done