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"stress-ng.syscall.ops_per_sec": [ 12892.83, 98074.65, 65206.14, 11507.57, 55012.11, 30684.44 ], take that 55012.11 as example, (part of) the stress-ng output is: stress-ng: metrc: [6604] stressor bogo ops real time usr time sys time bogo ops/s bogo ops/s CPU used per RSS Max stress-ng: metrc: [6604] (secs) (secs) (secs) (real time) (usr+sys time) instance (%) (KB) stress-ng: metrc: [6604] syscall 8878630 161.39 9.86 31058.22 55012.11 285.78 85.94 10512 another thing we want to mention is we also notice a WARNING for this commit in another test, so we reported "[herbert-cryptodev-2.6:master] [rhashtable] e1d3422c95: WARNING:at_mm/util.c:#__kvmalloc_node_noprof" in https://lore.kernel.org/all/202412311213.4e69877e-lkp@intel.com/ not sure if it's related or could supply any hint? > > I am trying to reproduce this problem, running the following script: > https://download.01.org/0day-ci/archive/20241227/202412271017.cad7675-lkp@intel.com/repro-script > > And I see the output like the one below, but, it is unclear to me what > metric regressed stress-ng.syscall.ops_per_sec means exactly. Would you > mind helping me to understand what is stress-ng.syscall.ops_per_sec and > how it maps to stress-ng metrics? > > Output of `stress-ng --timeout 60 --times --verify --metrics --no-rand-seed --syscall 224`: > > stress-ng: info: [59621] setting to a 1 min, 0 secs run per stressor > stress-ng: info: [59621] dispatching hogs: 224 syscall > stress-ng: info: [59647] syscall: using method 'fast75' > stress-ng: info: [59647] syscall: 292 system call tests, 219 (75.0%) fastest non-failing tests fully exercised > stress-ng: info: [59647] syscall: Top 10 fastest system calls (timings in nanosecs): > stress-ng: info: [59647] syscall: System Call Avg (ns) Min (ns) Max (ns) > stress-ng: info: [59647] syscall: pkey_get 156.0 127 185 > stress-ng: info: [59647] syscall: time 212.5 195 230 > stress-ng: info: [59647] syscall: pkey_set 235.5 193 278 > stress-ng: info: [59647] syscall: gettimeofday 282.5 255 310 > stress-ng: info: [59647] syscall: getcpu 457.0 388 526 > stress-ng: info: [59647] syscall: set_robust_list 791.5 745 838 > stress-ng: info: [59647] syscall: getgid 1137.0 974 1300 > stress-ng: info: [59647] syscall: setresuid 1146.0 1070 1222 > stress-ng: info: [59647] syscall: getuid 1162.5 902 1423 > stress-ng: info: [59647] syscall: setresgid 1211.5 1159 1264 > stress-ng: metrc: [59621] stressor bogo ops real time usr time sys time bogo ops/s bogo ops/s CPU used per RSS Max > stress-ng: metrc: [59621] (secs) (secs) (secs) (real time) (usr+sys time) instance (%) (KB) > stress-ng: metrc: [59621] syscall 114464 86.78 1.27 364.05 1318.95 313.33 1.88 4500 > stress-ng: info: [59621] for a 98.30s run time: > stress-ng: info: [59621] 3538.93s available CPU time > stress-ng: info: [59621] 1.26s user time ( 0.04%) > stress-ng: info: [59621] 366.66s system time ( 10.36%) > stress-ng: info: [59621] 367.92s total time ( 10.40%) > stress-ng: info: [59621] load average: 80.45 43.94 20.82 > stress-ng: info: [59621] skipped: 0 > stress-ng: info: [59621] passed: 224: syscall (224) > stress-ng: info: [59621] failed: 0 > stress-ng: info: [59621] metrics untrustworthy: 0 > stress-ng: info: [59621] successful run completed in 1 min, 38.30 secs > > Thank you! > --breno >