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util/disk_cache: actually enforce cache size

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Currently only a one in one out eviction so if at max_size and
cache files were to constantly increase in size then so would the
cache. Restrict to limit of 8 evictions per new cache entry.

V2: (Timothy Arceri) fix make check tests

Reviewed-by: Grazvydas Ignotas <notasas@gmail.com>
This commit is contained in:
Alan Swanson
2017-03-06 16:17:31 +00:00
committed by Timothy Arceri
parent af09b86732
commit f1e9671442
2 changed files with 24 additions and 4 deletions
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22
src/compiler/glsl/tests/cache_test.c
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@@ -350,9 +350,10 @@ test_put_and_get(void)
free(result);
/* Ensure eviction happened by checking that only one of the two
* previously-added items can still be fetched.
/* Ensure eviction happened by checking that both of the previous
* cache itesm were evicted.
*/
bool contains_1KB_file = false;
count = 0;
if (does_cache_contain(cache, blob_key))
count++;
@@ -360,6 +361,13 @@ test_put_and_get(void)
if (does_cache_contain(cache, string_key))
count++;
if (does_cache_contain(cache, one_KB_key)) {
count++;
contains_1KB_file = true;
}
expect_true(contains_1KB_file,
"disk_cache_put eviction last file == MAX_SIZE (1KB)");
expect_equal(count, 1, "disk_cache_put eviction with MAX_SIZE=1K");
/* Now increase the size to 1M, add back both items, and ensure all
@@ -406,6 +414,7 @@ test_put_and_get(void)
*/
wait_until_file_written(cache, one_MB_key);
bool contains_1MB_file = false;
count = 0;
if (does_cache_contain(cache, blob_key))
count++;
@@ -416,7 +425,14 @@ test_put_and_get(void)
if (does_cache_contain(cache, one_KB_key))
count++;
expect_equal(count, 2, "eviction after overflow with MAX_SIZE=1M");
if (does_cache_contain(cache, one_MB_key)) {
count++;
contains_1MB_file = true;
}
expect_true(contains_1MB_file,
"disk_cache_put eviction last file == MAX_SIZE (1MB)");
expect_equal(count, 1, "eviction after overflow with MAX_SIZE=1M");
disk_cache_destroy(cache);
}