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![René Scharfe](/assets/img/avatar_default.png)
Build a typed sort function for the mergesort performance test tool using DEFINE_LIST_SORT instead of calling llist_mergesort(). This gets rid of the next pointer accessor functions and improves the performance at the cost of a slightly higher object text size. Before: 0071.12: llist_mergesort() unsorted 0.24(0.22+0.01) 0071.14: llist_mergesort() sorted 0.12(0.10+0.01) 0071.16: llist_mergesort() reversed 0.12(0.10+0.01) __TEXT __DATA __OBJC others dec hex 6407 276 0 24701 31384 7a98 t/helper/test-mergesort.o With this patch: 0071.12: DEFINE_LIST_SORT unsorted 0.22(0.21+0.01) 0071.14: DEFINE_LIST_SORT sorted 0.11(0.10+0.01) 0071.16: DEFINE_LIST_SORT reversed 0.11(0.10+0.01) __TEXT __DATA __OBJC others dec hex 6615 276 0 25832 32723 7fd3 t/helper/test-mergesort.o Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
53 lines
910 B
Bash
Executable file
53 lines
910 B
Bash
Executable file
#!/bin/sh
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test_description='Basic sort performance tests'
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. ./perf-lib.sh
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test_perf_default_repo
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test_expect_success 'setup' '
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git ls-files --stage "*.[ch]" "*.sh" |
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cut -f2 -d" " |
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git cat-file --batch >unsorted
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'
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test_perf 'sort(1) unsorted' '
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sort <unsorted >sorted
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'
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test_expect_success 'reverse' '
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sort -r <unsorted >reversed
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'
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for file in sorted reversed
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do
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test_perf "sort(1) $file" "
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sort <$file >actual
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"
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done
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for file in unsorted sorted reversed
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do
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test_perf "string_list_sort() $file" "
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test-tool string-list sort <$file >actual
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"
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test_expect_success "string_list_sort() $file sorts like sort(1)" "
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test_cmp_bin sorted actual
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"
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done
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for file in unsorted sorted reversed
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do
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test_perf "DEFINE_LIST_SORT $file" "
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test-tool mergesort sort <$file >actual
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"
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test_expect_success "DEFINE_LIST_SORT $file sorts like sort(1)" "
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test_cmp_bin sorted actual
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"
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done
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test_done
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