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alita's Issues

在vm中执行splitlock,在host检测不到

您好,我在host中执行splitlock ,可以通过perf stat -e r10f4或 perf stat -e cpu/event=0xf4,umask=0x10/ 检测到。但是我把splitlock放在vm中执行,使用perf就检测不到了

MemoryContention.detect一直返回true?

bool detect()
{
timestamp_t now = get_timestamp();
if (now - this->last_time < this->interval)
return false;
this->last_time = now;
vector cpu_cachemiss = this->get_cpu_cachemiss();

    for (int socket = 0; socket < nr_sockets; socket++)
    {
        map<string, MemUsage> vm_memusage = this->get_vm_memuage(socket, cpu_cachemiss);
        SocketMemUsage socket_memusage = this->get_socket_memusage(socket, this->vm_memusage[socket]);
        this->vm_memusage[socket] = vm_memusage;
        this->socket_memusage[socket] = socket_memusage;

        this->push_usage(socket, vm_memusage, socket_memusage);
    }

    DEBUG_LOG(">>> detected...");
    return true;
}

是未完成??

splitlock的干扰效果不明显

我测试了一下splitlock对parsec的干扰,发现除了can以外,其他的workload的干扰效果都达不到预期,其中fs,x264,sc的运行时间在干扰情况下都不到单独运行的1.5倍。我的polluter和victim都分配了4个核,内存为4G,位于两个socket上,是否是我的虚拟机配置问题?

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