15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2003, Google Inc. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// All rights reserved. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Redistribution and use in source and binary forms, with or without 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// modification, are permitted provided that the following conditions are 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// met: 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions of source code must retain the above copyright 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// notice, this list of conditions and the following disclaimer. 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions in binary form must reproduce the above 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// copyright notice, this list of conditions and the following disclaimer 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// in the documentation and/or other materials provided with the 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// distribution. 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Neither the name of Google Inc. nor the names of its 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// contributors may be used to endorse or promote products derived from 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// this software without specific prior written permission. 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// --- 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Author: Sanjay Ghemawat 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Test speed of handling fragmented heap 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "config_for_unittests.h" 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdlib.h> 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdio.h> 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_SYS_RESOURCE_H 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/time.h> // for struct timeval 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/resource.h> // for getrusage 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef _WIN32 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> // for GetTickCount() 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <vector> 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "common.h" 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <gperftools/malloc_extension.h> 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using std::vector; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int main(int argc, char** argv) { 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make kAllocSize one page larger than the maximum small object size. 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const int kAllocSize = kMaxSize + kPageSize; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Allocate 400MB in total. 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const int kTotalAlloc = 400 << 20; 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const int kAllocIterations = kTotalAlloc / kAllocSize; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Allocate lots of objects 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vector<char*> saved(kAllocIterations); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int i = 0; i < kAllocIterations; i++) { 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) saved[i] = new char[kAllocSize]; 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check the current "slack". 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t slack_before; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocExtension::instance()->GetNumericProperty("tcmalloc.slack_bytes", 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &slack_before); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Free alternating ones to fragment heap 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t free_bytes = 0; 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int i = 0; i < saved.size(); i += 2) { 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete[] saved[i]; 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) free_bytes += kAllocSize; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check that slack delta is within 10% of expected. 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t slack_after; 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocExtension::instance()->GetNumericProperty("tcmalloc.slack_bytes", 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &slack_after); 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_GE(slack_after, slack_before); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t slack = slack_after - slack_before; 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_GT(double(slack), 0.9*free_bytes); 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_LT(double(slack), 1.1*free_bytes); 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Dump malloc stats 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const int kBufSize = 1<<20; 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* buffer = new char[kBufSize]; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocExtension::instance()->GetStats(buffer, kBufSize); 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1, "%s", buffer); 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete[] buffer; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Now do timing tests 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int i = 0; i < 5; i++) { 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const int kIterations = 100000; 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_SYS_RESOURCE_H 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct rusage r; 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) getrusage(RUSAGE_SELF, &r); // figure out user-time spent on this 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct timeval tv_start = r.ru_utime; 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(_WIN32) 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) long long int tv_start = GetTickCount(); 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# error No way to calculate time on your system 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int i = 0; i < kIterations; i++) { 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t s; 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocExtension::instance()->GetNumericProperty("tcmalloc.slack_bytes", 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &s); 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_SYS_RESOURCE_H 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) getrusage(RUSAGE_SELF, &r); 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct timeval tv_end = r.ru_utime; 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 sumsec = static_cast<int64>(tv_end.tv_sec) - tv_start.tv_sec; 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 sumusec = static_cast<int64>(tv_end.tv_usec) - tv_start.tv_usec; 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(_WIN32) 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) long long int tv_end = GetTickCount(); 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 sumsec = (tv_end - tv_start) / 1000; 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Resolution in windows is only to the millisecond, alas 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 sumusec = ((tv_end - tv_start) % 1000) * 1000; 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)# error No way to calculate time on your system 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fprintf(stderr, "getproperty: %6.1f ns/call\n", 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (sumsec * 1e9 + sumusec * 1e3) / kIterations); 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) printf("PASS\n"); 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 133