Function getRandomAllocSize

cachelib/allocator/memory/tests/TestBase.cpp:117–122

}

uint32_t getRandomAllocSize() {
  // Reserve some space for the intrusive list's hook
  constexpr uint32_t kReservedSize = 8;
  assert(Slab::kSize >= kReservedSize);
  return folly::Random::rand32(Slab::kSize - kReservedSize + 1) + kReservedSize;
}

std::set<uint32_t> getRandomPow2AllocSizes(unsigned int n) {
  unsigned int numBits = static_cast<unsigned int>(log2(Slab::kSize));