X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=lib%2Fbloom.c;h=33d093a33f6984cf7adc05b4e9092bb4d339300d;hb=42da5c8b2cdd53427145b623293bc5b915fb5f05;hp=b469fdedac0d57cc133bbbdc4067032a4950e13f;hpb=899834b5290bf6302a8a01d3c7672a9a200392c7;p=fio.git diff --git a/lib/bloom.c b/lib/bloom.c index b469fded..33d093a3 100644 --- a/lib/bloom.c +++ b/lib/bloom.c @@ -5,7 +5,9 @@ #include "../hash.h" #include "../minmax.h" #include "../crc/xxhash.h" +#include "../crc/murmur3.h" #include "../crc/crc32c.h" +#include "../crc/fnv.h" struct bloom { uint64_t nentries; @@ -21,27 +23,42 @@ struct bloom_hash { uint32_t (*fn)(const void *, uint32_t, uint32_t); }; -static uint32_t b_crc32c(const void *buf, uint32_t len, uint32_t seed) +static uint32_t bloom_crc32c(const void *buf, uint32_t len, uint32_t seed) { return fio_crc32c(buf, len); } +static uint32_t bloom_fnv(const void *buf, uint32_t len, uint32_t seed) +{ + return fnv(buf, len, seed); +} + +#define BLOOM_SEED 0x8989 + struct bloom_hash hashes[] = { { - .seed = 0x8989, + .seed = BLOOM_SEED, .fn = jhash, }, { - .seed = 0x8989, + .seed = BLOOM_SEED, .fn = XXH32, }, { - .seed = 0, - .fn = b_crc32c, + .seed = BLOOM_SEED, + .fn = murmurhash3, + }, + { + .seed = BLOOM_SEED, + .fn = bloom_crc32c, + }, + { + .seed = BLOOM_SEED, + .fn = bloom_fnv, }, }; -#define N_HASHES 3 +#define N_HASHES 5 #define MIN_ENTRIES 1073741824UL