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-rw-r--r-- | sca-cpp/branches/cpp-contrib/kernel/mem-test.cpp | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/sca-cpp/branches/cpp-contrib/kernel/mem-test.cpp b/sca-cpp/branches/cpp-contrib/kernel/mem-test.cpp new file mode 100644 index 0000000000..b1164a5a36 --- /dev/null +++ b/sca-cpp/branches/cpp-contrib/kernel/mem-test.cpp @@ -0,0 +1,162 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +/* $Rev$ $Date$ */ + +/** + * Test memory allocation functions. + */ + +#include <assert.h> +#include "stream.hpp" +#include "string.hpp" +#include "gc.hpp" +#include "function.hpp" +#include "perf.hpp" + +namespace tuscany { + +int countElements = 0; +int maxElements = 0; + +class Element { +public: + Element() : i(0) { + countElements++; + if (countElements > maxElements) + maxElements = countElements; + } + + Element(int i) : i(i) { + countElements++; + if (countElements > maxElements) + maxElements = countElements; + } + + Element(const Element& o) : i(o.i) { + countElements++; + if (countElements > maxElements) + maxElements = countElements; + } + + ~Element() { + countElements--; + } + + const bool operator==(const Element& o) const { + return o.i == i; + } + +private: + friend ostream& operator<<(ostream& out, const Element& v); + + int i; + char c[20]; +}; + +ostream& operator<<(ostream& out, const Element& v) { + out << v.i ; + return out; +} + +bool poolAlloc(Element** p, const int count) { + if (count == 0) + return true; + p[count - 1] = new (gc_new<Element>()) Element(); + return poolAlloc(p, count - 1); +}; + +bool poolFree(Element** p, const int count) { + if (count == 0) + return true; + // Do nothing to free the element, but cycle through them just + // to get a fair comparison with the other memory alloc tests + return poolFree(p, count - 1); +}; + +struct poolAllocPerf { + const int n; + Element** p; + poolAllocPerf(const int n) : n(n), p(new Element*[n]) { + } + const bool operator()() const { + gc_scoped_pool gc; + poolAlloc(p, n); + return true; + } +}; + +bool testPoolAllocPerf() { + const int count = 100000; + const lambda<bool()> pl = poolAllocPerf(count); + maxElements = 0; + cout << "Memory pool alloc test " << (time(pl, 1, 1) / count) << " ms" << endl; + assert(countElements == 0); + assert(maxElements == count); + return true; +} + +bool stdAlloc(Element** p, const int count) { + if (count == 0) + return true; + p[count - 1] = new Element(); + return stdAlloc(p, count - 1); +}; + +bool stdFree(Element** p, const int count) { + if (count == 0) + return true; + delete p[count -1]; + return stdFree(p, count - 1); +}; + +struct stdAllocPerf { + const int n; + Element** p; + stdAllocPerf(const int n) : n(n), p(new Element*[n]) { + } + const bool operator()() const { + stdAlloc(p, n); + stdFree(p, n); + return true; + } +}; + +bool testStdAllocPerf() { + const int count = 100000; + const lambda<bool()> sl = stdAllocPerf(count); + maxElements = 0; + cout << "Memory standard alloc test " << (time(sl, 1, 1) / count) << " ms" << endl; + assert(countElements == 0); + assert(maxElements == count); + return true; +} + +} + +int main() { + tuscany::cout << "Testing..." << tuscany::endl; + + tuscany::testPoolAllocPerf(); + tuscany::testStdAllocPerf(); + + tuscany::cout << "OK" << tuscany::endl; + + return 0; +} |