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| author | Tyge Løvset <[email protected]> | 2020-03-10 22:32:24 +0100 |
|---|---|---|
| committer | GitHub <[email protected]> | 2020-03-10 22:32:24 +0100 |
| commit | 7943f6773864dfe1d63e4188a23a41f3f23d2b4f (patch) | |
| tree | 28a619a810dee0a622e8bc0d2d96fcdd1d760d61 | |
| parent | 1f93cd63a5e2f13d5954c7519c7869ba6c870427 (diff) | |
| download | STC-modified-7943f6773864dfe1d63e4188a23a41f3f23d2b4f.tar.gz STC-modified-7943f6773864dfe1d63e4188a23a41f3f23d2b4f.zip | |
Benchmark and speedup
Added benchmark.cpp and did a speedup trick in cmap
| -rw-r--r-- | benchmark.cpp | 51 | ||||
| -rw-r--r-- | cmap.h | 7 |
2 files changed, 56 insertions, 2 deletions
diff --git a/benchmark.cpp b/benchmark.cpp new file mode 100644 index 00000000..ca65ce5a --- /dev/null +++ b/benchmark.cpp @@ -0,0 +1,51 @@ +#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+#include "cmap.h"
+#include "cvector.h"
+#include "cstring.h"
+#include "hash_set.hpp"
+#include <unordered_map>
+
+
+declare_CMap(ii, int, int);
+declare_CStringVector(s);
+
+int main()
+{
+ CMap_ii map = cmap_initializer;
+ uint64_t checksum = 0;
+ clock_t before, difference;
+ size_t fib1, fib2, fibx;
+
+ const size_t N = 10000000;
+
+ printf("Starting\n");
+ //cmap_ii_reserve(&map, N * 1.7);
+ before = clock();
+ fib1 = 0, fib2 = 1;
+ for (size_t i = 0; i < N; ++i) {
+ checksum += ++cmap_ii_put(&map, FIBONACCI_NEXT, i)->value;
+ }
+ difference = clock() - before;
+ printf("%llu Check: %f\n", checksum, 1.0 * difference / CLOCKS_PER_SEC);
+ cmap_ii_destroy(&map);
+
+ std::unordered_map<int, int> map2;
+ before = clock();
+ fib1 = 0, fib2 = 1; checksum = 0;
+ for (size_t i = 0; i < N; ++i)
+ checksum += ++(map2[FIBONACCI_NEXT] = i);
+ difference = clock() - before;
+ printf("%llu Check: %f\n", checksum, 1.0 * difference / CLOCKS_PER_SEC);
+ map2.clear();
+
+ emhash7::HashMap<int, int> map3;
+ //map3.reserve(N);
+ before = clock();
+ fib1 = 0, fib2 = 1; checksum = 0;
+ for (size_t i = 0; i < N; ++i)
+ checksum += ++(*map3.insert(FIBONACCI_NEXT, i).first).second;
+ difference = clock() - before;
+ printf("%llu Check: %f\n", checksum, 1.0 * difference / CLOCKS_PER_SEC);
+}
\ No newline at end of file @@ -115,7 +115,7 @@ static inline void cmap_##tag##_swap(CMap_##tag* a, CMap_##tag* b) { \ static inline void cmap_##tag##_setMaxLoadFactor(CMap_##tag* self, float fac) { \
self->maxLoadFactor = fac; \
if (cmap_size(*self) > cmap_buckets(*self) * fac) \
- cmap_##tag##_reserve(self, 7 + (size_t) (cmap_size(*self) / fac)); \
+ cmap_##tag##_reserve(self, 1 + (size_t) (cmap_size(*self) / fac)); \
} \
\
static inline size_t cmap_##tag##_bucket(CMap_##tag cm, KeyRaw rawKey) { \
@@ -139,7 +139,9 @@ static inline size_t cmap_##tag##_bucket(CMap_##tag cm, KeyRaw rawKey) { \ if (erased_idx == cap) erased_idx = idx; \
break; \
} \
- state = cm._vec.data[ idx = (first + FIBONACCI_NEXT) % cap ].state; \
+ idx = first + FIBONACCI_NEXT; \
+ if (idx >= cap) idx %= cap; \
+ state = cm._vec.data[ idx ].state; \
} while (1); \
} \
\
@@ -219,4 +221,5 @@ static inline uint32_t cmap_reduce(uint32_t x, uint32_t N) { return ((uint64_t) x * (uint64_t) N) >> 32 ;
}
+
#endif
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