wireguard-linux/tools/testing/selftests/resctrl/resctrlfs.c, branch jd/unified-crypt-queue

selftests/resctrl: Use cache index3 id for AMD schemata masks

2020-02-11T01:43:32Z

AMD uses the cache l3 boundary for schemata masks. Update it accordigly. Signed-off-by: Babu Moger Co-developed-by: Fenghua Yu Signed-off-by: Fenghua Yu Signed-off-by: Shuah Khan

selftests/resctrl: Add Cache Allocation Technology (CAT) selftest

2020-02-11T01:43:07Z

Cache Allocation Technology (CAT) selftest allocates a portion of last level cache and starts a benchmark to read each cache line in this portion of cache. Measure the cache misses in perf and the misses should be equal to the number of cache lines in this portion of cache. We don't use CQM to calculate cache usage because some CAT enabled platforms don't have CQM. Co-developed-by: Sai Praneeth Prakhya Signed-off-by: Sai Praneeth Prakhya Co-developed-by: Babu Moger Signed-off-by: Babu Moger Signed-off-by: Fenghua Yu Signed-off-by: Shuah Khan

selftests/resctrl: Add Cache QoS Monitoring (CQM) selftest

2020-02-11T01:42:57Z

Cache QoS Monitoring (CQM) selftest starts stressful cache benchmark with specified size of memory to access the cache. Last Level cache occupancy reported by CQM should be close to the size of the memory. Co-developed-by: Sai Praneeth Prakhya Signed-off-by: Sai Praneeth Prakhya Co-developed-by: Babu Moger Signed-off-by: Babu Moger Signed-off-by: Fenghua Yu Signed-off-by: Shuah Khan

selftests/resctrl: Add MBM test

2020-02-11T01:42:29Z

MBM (Memory Bandwidth Monitoring) test is the first implemented selftest. It starts a stressful memory bandwidth benchmark and assigns the bandwidth pid in a resctrl monitoring group. Read and compare perf IMC counter and MBM total bytes for the benchmark. The numbers should be close enough to pass the test. Default benchmark is built-in fill_buf. But users can specify their own benchmark by option "-b". We can add memory bandwidth monitoring for multiple processes in the future. Co-developed-by: Sai Praneeth Prakhya Signed-off-by: Sai Praneeth Prakhya Co-developed-by: Babu Moger Signed-off-by: Babu Moger Signed-off-by: Fenghua Yu Signed-off-by: Shuah Khan

selftests/resctrl: Add basic resctrl file system operations and data

2020-02-11T01:37:45Z

The basic resctrl file system operations and data are added for future usage by resctrl selftest tool. Signed-off-by: Sai Praneeth Prakhya Co-developed-by: Babu Moger Signed-off-by: Babu Moger Co-developed-by: Fenghua Yu Signed-off-by: Fenghua Yu Signed-off-by: Shuah Khan