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reftable: make the compaction factor configurable

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When auto-compacting, the reftable library packs references such that
the sizes of the tables form a geometric sequence. The factor for this
geometric sequence is hardcoded to 2 right now. We're about to expose
this as a config option though, so let's expose the factor via write
options.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2024-05-13 10:18:38 +02:00
committed by Junio C Hamano
parent afbdbfae0b
commit f663d34306
5 changed files with 21 additions and 7 deletions
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4
reftable/stack_test.c
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@ -729,7 +729,7 @@ static void test_suggest_compaction_segment(void)
{
uint64_t sizes[] = { 512, 64, 17, 16, 9, 9, 9, 16, 2, 16 };
struct segment min =
suggest_compaction_segment(sizes, ARRAY_SIZE(sizes));
suggest_compaction_segment(sizes, ARRAY_SIZE(sizes), 2);
EXPECT(min.start == 1);
EXPECT(min.end == 10);
}
@ -738,7 +738,7 @@ static void test_suggest_compaction_segment_nothing(void)
{
uint64_t sizes[] = { 64, 32, 16, 8, 4, 2 };
struct segment result =
suggest_compaction_segment(sizes, ARRAY_SIZE(sizes));
suggest_compaction_segment(sizes, ARRAY_SIZE(sizes), 2);
EXPECT(result.start == result.end);
}