Writing correct concurrent code that uses atomics under the C/C++ memory model is extremely difficult. We present C11Tester, a race detector for the C/C++ memory model that can explore executions in a larger fragment of the C/C++ memory model than previous race detector tools. Relative to previous work, C11Tester's larger fragment includes behaviors that are exhibited by ARM processors. C11Tester uses a new constraint-based algorithm to implement modification order that is optimized to allow C11Tester to make decisions in terms of application-visible behaviors. We evaluate C11Tester on several benchmark applications, and compare C11Tester's performance to both tsan11rec, the state of the art tool that controls scheduling for C/C++; and tsan11, the state of the art tool that does not control scheduling.

中文翻译：

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C11Tester：用于C / C ++原子的种族探测器技术报告

在C / C ++内存模型下编写使用原子的正确并发代码非常困难。我们介绍了C11Tester，它是C / C ++内存模型的竞争检测器，与以前的竞争检测器工具相比，它可以在更大的C / C ++内存模型片段中探索执行。相对于以前的工作，C11Tester的较大片段包括ARM处理器表现出的行为。C11Tester使用新的基于约束的算法来实现修改顺序，该修改顺序经过了优化，以允许C11Tester根据应用程序可见的行为做出决策。我们在几个基准应用程序上评估C11Tester，并将C11Tester的性能与tsan11rec（用于控制C / C ++的最新工具）进行比较；tsan11，这是不控制计划的最新工具。