virtualx-engine/thirdparty/embree/kernels/common/alloc.cpp

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// Copyright 2009-2021 Intel Corporation
2021-04-20 18:38:09 +02:00
// SPDX-License-Identifier: Apache-2.0
#include "alloc.h"
#include "../../common/sys/thread.h"
namespace embree
{
__thread FastAllocator::ThreadLocal2* FastAllocator::thread_local_allocator2 = nullptr;
SpinLock FastAllocator::s_thread_local_allocators_lock;
std::vector<std::unique_ptr<FastAllocator::ThreadLocal2>> FastAllocator::s_thread_local_allocators;
struct fast_allocator_regression_test : public RegressionTest
{
BarrierSys barrier;
std::atomic<size_t> numFailed;
std::unique_ptr<FastAllocator> alloc;
fast_allocator_regression_test()
: RegressionTest("fast_allocator_regression_test"), numFailed(0)
{
registerRegressionTest(this);
}
static void thread_alloc(fast_allocator_regression_test* This)
{
FastAllocator::CachedAllocator threadalloc = This->alloc->getCachedAllocator();
size_t* ptrs[1000];
for (size_t j=0; j<1000; j++)
{
This->barrier.wait();
for (size_t i=0; i<1000; i++) {
ptrs[i] = (size_t*) threadalloc.malloc0(sizeof(size_t)+(i%32));
*ptrs[i] = size_t(threadalloc.talloc0) + i;
}
for (size_t i=0; i<1000; i++) {
if (*ptrs[i] != size_t(threadalloc.talloc0) + i)
This->numFailed++;
}
This->barrier.wait();
}
}
bool run ()
{
alloc = make_unique(new FastAllocator(nullptr,false));
numFailed.store(0);
size_t numThreads = getNumberOfLogicalThreads();
barrier.init(numThreads+1);
/* create threads */
std::vector<thread_t> threads;
for (size_t i=0; i<numThreads; i++)
threads.push_back(createThread((thread_func)thread_alloc,this));
/* run test */
for (size_t i=0; i<1000; i++)
{
alloc->reset();
barrier.wait();
barrier.wait();
}
/* destroy threads */
for (size_t i=0; i<numThreads; i++)
join(threads[i]);
alloc = nullptr;
return numFailed == 0;
}
};
fast_allocator_regression_test fast_allocator_regression;
}