Commit a3f7d8aa authored by Piotr Pelplinski's avatar Piotr Pelplinski Committed by Jim Harris
Browse files

histograms: add function to merge histograms 



Signed-off-by: default avatarPiotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: I75f737a7e0a5490eeb183e6fa922fa8e17d30268

Reviewed-on: https://review.gerrithub.io/432558


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
parent 84c168fa

include/spdk/histogram_data.h

+17 −0
Original line number Diff line number Diff line
@@ -106,6 +106,12 @@ __spdk_histogram_get_count(const struct spdk_histogram_data *h, uint32_t range, 
	return h->bucket[(range << SPDK_HISTOGRAM_BUCKET_SHIFT(h)) + index];

}



static inline uint64_t *

__spdk_histogram_get_bucket(const struct spdk_histogram_data *h, uint32_t range, uint32_t index)

{

	return &h->bucket[(range << SPDK_HISTOGRAM_BUCKET_SHIFT(h)) + index];

}



static inline void

spdk_histogram_data_reset(struct spdk_histogram_data *histogram)

{
@@ -203,6 +209,17 @@ spdk_histogram_data_iterate(const struct spdk_histogram_data *histogram, 
	}

}



static inline void

spdk_histogram_data_merge(const struct spdk_histogram_data *dst,

			  const struct spdk_histogram_data *src)

{

	uint64_t i;



	for (i = 0; i < SPDK_HISTOGRAM_NUM_BUCKETS(dst); i++) {

		dst->bucket[i] += src->bucket[i];

	}

}



static inline struct spdk_histogram_data *

spdk_histogram_data_alloc_sized(uint32_t bucket_shift)

{