91 lines
3.3 KiB
C++
91 lines
3.3 KiB
C++
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/*
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* Copyright (C) 2016 - 2018 Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice(s),
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice(s),
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "common.h"
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#include "allocator_perf_tool/HugePageUnmap.hpp"
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#include "allocator_perf_tool/HugePageOrganizer.hpp"
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#include "TimerSysTime.hpp"
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#include "Thread.hpp"
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/*
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* This test was created because of the munmap() fail in jemalloc.
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* There are two root causes of the error:
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* - kernel bug (munmap() fails when the size is not aligned)
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* - heap Manager doesn’t provide size aligned to 2MB pages for munmap()
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* Test allocates 2000MB using Huge Pages (50threads*10operations*4MBalloc_size),
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* but it needs extra Huge Pages due to overhead caused by heap management.
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*/
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class HugePageTest: public :: testing::Test
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{
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protected:
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void run()
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{
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unsigned mem_operations_num = 10;
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size_t threads_number = 50;
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bool touch_memory = true;
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size_t size_1MB = 1024*1024;
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size_t alignment = 2*size_1MB;
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size_t alloc_size = 4*size_1MB;
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std::vector<Thread *> threads;
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std::vector<Task *> tasks;
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TimerSysTime timer;
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timer.start();
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// This bug occurs more frequently under stress of multithreaded allocations.
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for (int i=0; i<threads_number; i++) {
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Task *task = new HugePageUnmap(mem_operations_num, touch_memory, alignment,
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alloc_size, HBW_PAGESIZE_2MB);
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tasks.push_back(task);
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threads.push_back(new Thread(task));
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}
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float elapsed_time = timer.getElapsedTime();
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ThreadsManager threads_manager(threads);
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threads_manager.start();
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threads_manager.barrier();
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threads_manager.release();
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//task release
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for (int i=0; i<tasks.size(); i++) {
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delete tasks[i];
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}
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RecordProperty("threads_number", threads_number);
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RecordProperty("memory_operations_per_thread", mem_operations_num);
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RecordProperty("elapsed_time", elapsed_time);
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}
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};
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// Test passes when there is no crash.
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TEST_F(HugePageTest, test_TC_MEMKIND_ext_UNMAP_HUGE_PAGE)
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{
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HugePageOrganizer huge_page_organizer(1024);
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run();
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}
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