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LogLog-Beta Algorithm support within HLL

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Config option to use LogLog-Beta Algorithm for Cardinality
This commit is contained in:
Harish Murthy
2016-12-09 14:28:19 +05:30
committed by antirez
parent 90d918bd6b
commit 4d475e0f88
4 changed files with 55 additions and 25 deletions
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2
src/server.h
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@ -151,6 +151,7 @@ typedef long long mstime_t; /* millisecond time type. */
#define CONFIG_DEFAULT_LAZYFREE_LAZY_EVICTION 0
#define CONFIG_DEFAULT_LAZYFREE_LAZY_EXPIRE 0
#define CONFIG_DEFAULT_LAZYFREE_LAZY_SERVER_DEL 0
#define CONFIG_DEFAULT_HLL_USE_LOGLOGBETA 0
#define ACTIVE_EXPIRE_CYCLE_LOOKUPS_PER_LOOP 20 /* Loopkups per loop. */
#define ACTIVE_EXPIRE_CYCLE_FAST_DURATION 1000 /* Microseconds */
@ -1149,6 +1150,7 @@ struct redisServer {
int watchdog_period; /* Software watchdog period in ms. 0 = off */
/* System hardware info */
size_t system_memory_size; /* Total memory in system as reported by OS */
int hll_use_loglogbeta; /* Use loglog-beta algorithm for HLL */
};
typedef struct pubsubPattern {