2017-05-25 19:45:21 +00:00
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#!/bin/sh
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test_description="Comparison of git-grep's regex engines
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Set GIT_PERF_7820_GREP_OPTS in the environment to pass options to
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git-grep. Make sure to include a leading space,
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e.g. GIT_PERF_7820_GREP_OPTS=' -i'. Some options to try:
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-i
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-w
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-v
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-vi
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-vw
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-viw
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2017-12-29 22:59:03 +00:00
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If GIT_PERF_GREP_THREADS is set to a list of threads (e.g. '1 4 8'
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etc.) we will test the patterns under those numbers of threads.
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2017-05-25 19:45:21 +00:00
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"
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. ./perf-lib.sh
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test_perf_large_repo
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test_checkout_worktree
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2017-12-29 22:59:03 +00:00
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if test -n "$GIT_PERF_GREP_THREADS"
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then
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test_set_prereq PERF_GREP_ENGINES_THREADS
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fi
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2017-05-25 19:45:21 +00:00
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for pattern in \
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'how.to' \
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'^how to' \
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'[how] to' \
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'\(e.t[^ ]*\|v.ry\) rare' \
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'm\(ú\|u\)lt.b\(æ\|y\)te'
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do
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for engine in basic extended perl
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do
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if test $engine != "basic"
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then
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# Poor man's basic -> extended converter.
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pattern=$(echo "$pattern" | sed 's/\\//g')
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fi
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if test $engine = "perl" && ! test_have_prereq PCRE
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then
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prereq="PCRE"
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else
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prereq=""
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fi
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2017-12-29 22:59:03 +00:00
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if ! test_have_prereq PERF_GREP_ENGINES_THREADS
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2017-05-25 19:45:21 +00:00
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then
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2017-12-29 22:59:03 +00:00
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test_perf $prereq "$engine grep$GIT_PERF_7820_GREP_OPTS '$pattern'" "
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git -c grep.patternType=$engine grep$GIT_PERF_7820_GREP_OPTS -- '$pattern' >'out.$engine' || :
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"
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else
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for threads in $GIT_PERF_GREP_THREADS
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do
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test_perf PTHREADS,$prereq "$engine grep$GIT_PERF_7820_GREP_OPTS '$pattern' with $threads threads" "
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git -c grep.patternType=$engine -c grep.threads=$threads grep$GIT_PERF_7820_GREP_OPTS -- '$pattern' >'out.$engine.$threads' || :
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"
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done
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2017-05-25 19:45:21 +00:00
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fi
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2017-12-29 22:59:03 +00:00
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done
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if ! test_have_prereq PERF_GREP_ENGINES_THREADS
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then
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test_expect_success "assert that all engines found the same for$GIT_PERF_7820_GREP_OPTS '$pattern'" '
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test_cmp out.basic out.extended &&
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if test_have_prereq PCRE
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then
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test_cmp out.basic out.perl
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fi
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'
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else
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for threads in $GIT_PERF_GREP_THREADS
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do
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test_expect_success PTHREADS "assert that all engines found the same for$GIT_PERF_7820_GREP_OPTS '$pattern' under threading" "
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test_cmp out.basic.$threads out.extended.$threads &&
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if test_have_prereq PCRE
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then
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test_cmp out.basic.$threads out.perl.$threads
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fi
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"
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done
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fi
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2017-05-25 19:45:21 +00:00
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done
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test_done
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