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Experiment with not using a checksum

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This commit is contained in:
Stella Lau
2017-07-24 15:26:44 -07:00
parent 08a6e9a141
commit 0295a27133
5 changed files with 151 additions and 46 deletions
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contrib/long_distance_matching/ldm.h
+6 -14
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@@ -32,23 +32,15 @@
#define LDM_WINDOW_SIZE (1 << (LDM_WINDOW_SIZE_LOG))
//These should be multiples of four (and perhaps set to the same value?).
#define LDM_MIN_MATCH_LENGTH 16
#define LDM_HASH_LENGTH 16
#define LDM_MIN_MATCH_LENGTH 64
#define LDM_HASH_LENGTH 64
// Experimental.
//#define TMP_EVICTION
#define TMP_TAG_INSERT
//#define TMP_FORCE_HASH_ONLY
//#define TMP_EVICTION // Experiment with eviction policies.
#define TMP_TAG_INSERT // Insertion policy based on hash.
#define LDM_HASH_ENTRY_SIZE_LOG 3
// Insert every (HASH_ONLY_EVERY + 1) into the hash table.
#ifdef TMP_FORCE_HASH_ONLY
#define HASH_ONLY_EVERY_LOG 7
#else
#define HASH_ONLY_EVERY_LOG (LDM_WINDOW_SIZE_LOG-((LDM_MEMORY_USAGE)-(LDM_HASH_ENTRY_SIZE_LOG)))
#endif
#define HASH_ONLY_EVERY ((1 << HASH_ONLY_EVERY_LOG) - 1)
#define USE_CHECKSUM 1
//#define USE_CHECKSUM (HASH_BUCKET_SIZE_LOG)
typedef struct LDM_compressStats LDM_compressStats;
typedef struct LDM_CCtx LDM_CCtx;