Function flushCache

runtime/PerfHelper.cc:28–36

Flush the CPU data cache by reading and writing 100MB of new data.

/// Flush the CPU data cache by reading and writing 100MB of new data.
void
flushCache()
{
    int hundredMegs = 100 * 1024 * 1024;
    volatile char* block = new char[hundredMegs];
    for (int i = 0; i < hundredMegs; i++)
        block[i] = 1;
    delete[] block;
}

/// Used in functionCall().
uint64_t