1cf9a165fc
bihash_48_8 case: Scalar code: 6 clocks SSE4.2 code: 3 clocks AVX2 code: 2.27 clocks AVX512 code: 1.5 clocks Change-Id: I40700175835a1e7321276e47eadbf9771d3c5a68 Signed-off-by: Damjan Marion <damarion@cisco.com>
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/*
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* Copyright (c) 2016 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#undef BIHASH_TYPE
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#undef BIHASH_KVP_CACHE_SIZE
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#undef BIHASH_KVP_PER_PAGE
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#define BIHASH_TYPE _16_8
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#define BIHASH_KVP_PER_PAGE 4
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#define BIHASH_KVP_CACHE_SIZE 5
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#ifndef __included_bihash_16_8_h__
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#define __included_bihash_16_8_h__
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#include <vppinfra/heap.h>
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#include <vppinfra/format.h>
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#include <vppinfra/pool.h>
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#include <vppinfra/xxhash.h>
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#include <vppinfra/crc32.h>
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typedef struct
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{
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u64 key[2];
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u64 value;
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} clib_bihash_kv_16_8_t;
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static inline int
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clib_bihash_is_free_16_8 (clib_bihash_kv_16_8_t * v)
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{
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/* Free values are memset to 0xff, check a bit... */
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if (v->key[0] == ~0ULL && v->value == ~0ULL)
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return 1;
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return 0;
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}
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static inline u64
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clib_bihash_hash_16_8 (clib_bihash_kv_16_8_t * v)
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{
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#ifdef clib_crc32c_uses_intrinsics
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return clib_crc32c ((u8 *) v->key, 16);
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#else
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u64 tmp = v->key[0] ^ v->key[1];
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return clib_xxhash (tmp);
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#endif
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}
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static inline u8 *
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format_bihash_kvp_16_8 (u8 * s, va_list * args)
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{
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clib_bihash_kv_16_8_t *v = va_arg (*args, clib_bihash_kv_16_8_t *);
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s = format (s, "key %llu %llu value %llu", v->key[0], v->key[1], v->value);
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return s;
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}
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static inline int
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clib_bihash_key_compare_16_8 (u64 * a, u64 * b)
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{
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#if defined(CLIB_HAVE_VEC128) && defined(CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE)
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u64x2 v;
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v = u64x2_load_unaligned (a) ^ u64x2_load_unaligned (b);
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return u64x2_is_all_zero (v);
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#else
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return ((a[0] ^ b[0]) | (a[1] ^ b[1])) == 0;
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#endif
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}
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#undef __included_bihash_template_h__
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#include <vppinfra/bihash_template.h>
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#endif /* __included_bihash_16_8_h__ */
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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