Esempi in C++ (Cpp) per computecacheline

Esempio n. 1

File: array_container_benchmark.c Progetto: EvilMcJerkface/CRoaring

void array_cache_flush(array_container_t* B) {
    const int32_t CACHELINESIZE =
        computecacheline();  // 64 bytes per cache line
    for (int32_t k = 0; k < B->cardinality;
         k += CACHELINESIZE / (int32_t)sizeof(uint16_t)) {
        __builtin_ia32_clflush(B->array + k);
    }
}

Esempio n. 2

File: run_container_benchmark.c Progetto: EvilMcJerkface/CRoaring

// flushes the array from cache
void run_cache_flush(run_container_t* B) {
    const int32_t CACHELINESIZE =
        computecacheline();  // 64 bytes per cache line
    for (int32_t k = 0; k < B->n_runs * 2;
         k += CACHELINESIZE / (int32_t)sizeof(uint16_t)) {
        __builtin_ia32_clflush(B->runs + k);
    }
}

Esempio n. 3

File: bitset_container_benchmark.c Progetto: RoaringBitmap/CRoaring

// flushes the array of words from cache
void bitset_cache_flush(bitset_container_t* B) {
    const int32_t CACHELINESIZE =
        computecacheline();  // 64 bytes per cache line
    for (int32_t k = 0; k < BITSET_CONTAINER_SIZE_IN_WORDS;
         k += CACHELINESIZE / (int32_t)sizeof(uint64_t)) {
        __builtin_ia32_clflush(B->array + k);
    }
}

Esempio n. 4

File: bitset_container_benchmark.c Progetto: RoaringBitmap/CRoaring

// tries to put array of words in cache
void bitset_cache_prefetch(bitset_container_t* B) {
#ifdef IS_X64
    const int32_t CACHELINESIZE =
        computecacheline();  // 64 bytes per cache line
#else
    const int32_t CACHELINESIZE = 64;
#endif
    for (int32_t k = 0; k < BITSET_CONTAINER_SIZE_IN_WORDS;
         k += CACHELINESIZE / (int32_t)sizeof(uint64_t)) {
        __builtin_prefetch(B->array + k);
    }
}

Esempio n. 5

File: array_container_benchmark.c Progetto: EvilMcJerkface/CRoaring

// tries to put the array in cache
void array_cache_prefetch(array_container_t* B) {
#ifdef IS_X64
    const int32_t CACHELINESIZE =
        computecacheline();  // 64 bytes per cache line
#else
    const int32_t CACHELINESIZE = 64;
#endif
#if !(defined(_MSC_VER) && !defined(__clang__))
    for (int32_t k = 0; k < B->cardinality;
         k += CACHELINESIZE / (int32_t)sizeof(uint16_t)) {
        __builtin_prefetch(B->array + k);
    }
#endif
}