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Cache bin: Don't reverse flush order.

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The items we pick to flush matter a lot, but the order in which they get flushed
doesn't; just use forward scans.  This simplifies the accessing code, both in
terms of the C and the generated assembly (i.e. this speeds up the flush
pathways).
This commit is contained in:
David Goldblatt
2021-01-29 13:10:44 -08:00
committed by David Goldblatt
parent 4c46e11365
commit 2fcbd18115
3 changed files with 10 additions and 21 deletions
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test/unit/cache_bin.c
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@@ -43,7 +43,7 @@ do_flush_test(cache_bin_t *bin, cache_bin_info_t *info, void **ptrs,
CACHE_BIN_PTR_ARRAY_DECLARE(arr, nflush);
cache_bin_init_ptr_array_for_flush(bin, info, &arr, nflush);
for (cache_bin_sz_t i = 0; i < nflush; i++) {
expect_ptr_eq(cache_bin_ptr_array_get(&arr, i), &ptrs[i], "");
expect_ptr_eq(arr.ptr[i], &ptrs[nflush - i - 1], "");
}
cache_bin_finish_flush(bin, info, &arr, nflush);