X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=lib%2Fzipf.c;h=c691bc51a5a57f6e84ef2450d47fb0ad12f02bcc;hb=27d748368a4982527c6fb85dc3a79c18311da2a8;hp=41e20554b3d019885ed76c9fbe9b66183c4100cf;hpb=e48395912095ece3057a0666f6a7a443e340cc8f;p=fio.git diff --git a/lib/zipf.c b/lib/zipf.c index 41e20554..c691bc51 100644 --- a/lib/zipf.c +++ b/lib/zipf.c @@ -11,7 +11,7 @@ #include "../minmax.h" #include "../hash.h" -#define ZIPF_MAX_GEN 10000000 +#define ZIPF_MAX_GEN 10000000UL static void zipf_update(struct zipf_state *zs) { @@ -23,7 +23,7 @@ static void zipf_update(struct zipf_state *zs) * 10M max, that should be doable in 1-2s on even slow machines. * Precision will take a slight hit, but nothing major. */ - to_gen = min(zs->nranges, ZIPF_MAX_GEN); + to_gen = min(zs->nranges, (uint64_t) ZIPF_MAX_GEN); for (i = 0; i < to_gen; i++) zs->zetan += pow(1.0 / (double) (i + 1), zs->theta); @@ -69,7 +69,7 @@ unsigned long long zipf_next(struct zipf_state *zs) else val = 1 + (unsigned long long)(n * pow(eta*rand_uni - eta + 1.0, alpha)); - return (__hash_long(val - 1) + zs->rand_off) % zs->nranges; + return (__hash_u64(val - 1) + zs->rand_off) % zs->nranges; } void pareto_init(struct zipf_state *zs, unsigned long nranges, double h, @@ -84,5 +84,5 @@ unsigned long long pareto_next(struct zipf_state *zs) double rand = (double) __rand(&zs->rand) / (double) FRAND_MAX; unsigned long long n = zs->nranges - 1; - return (__hash_long(n * pow(rand, zs->pareto_pow)) + zs->rand_off) % zs->nranges; + return (__hash_u64(n * pow(rand, zs->pareto_pow)) + zs->rand_off) % zs->nranges; }