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2022-06-30 - 18:05

x86 AMD 1950X @3700 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of system in rack #c, slot #8
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rackcslot8.osadl.org (updated Thu Jun 30, 2022 12:49:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2931599386187,1cyclictest151rcu_preempt09:24:429
2927499328133,1cyclictest151rcu_preempt11:10:1030
2642912710,263ptp4l0-21swapper/107:09:541
2642912710,263ptp4l0-21swapper/107:09:541
292929925760,22cyclictest151rcu_preempt11:31:374
29315991839,144cyclictest0-21swapper/1710:45:159
293159918310,152cyclictest0-21swapper/1709:51:459
29383991681,138cyclictest0-21swapper/2811:27:0721
29315991599,88cyclictest0-21swapper/1711:30:519
29315991589,96cyclictest0-21swapper/1709:28:289
293439914411,79cyclictest0-21swapper/2207:53:1915
292719914458,46cyclictest0-21swapper/710:14:4729
29400991420,84cyclictest0-21swapper/3111:35:2125
29400991420,84cyclictest0-21swapper/3111:35:2025
29400991390,83cyclictest0-21swapper/3111:15:0225
29343991390,85cyclictest0-21swapper/2209:10:5315
29255991390,87cyclictest0-21swapper/310:34:1123
292839913726,66cyclictest0-21swapper/1011:05:372
29315991360,85cyclictest0-21swapper/1710:38:289
292719913626,89cyclictest0-21swapper/711:28:0029
294009913429,68cyclictest0-21swapper/3111:41:2725
294009913429,68cyclictest0-21swapper/3111:41:2725
294009913424,74cyclictest0-21swapper/3108:33:2425
29400991340,82cyclictest0-21swapper/3108:35:1525
29400991340,76cyclictest0-21swapper/3111:25:1225
29343991340,80cyclictest0-21swapper/2211:01:3215
29271991340,84cyclictest0-21swapper/709:55:1729
294009913330,66cyclictest0-21swapper/3109:30:4925
294009913326,63cyclictest0-21swapper/3111:05:2525
294009913318,72cyclictest0-21swapper/3111:58:2025
294009913318,72cyclictest0-21swapper/3111:58:1925
294009913315,77cyclictest0-21swapper/3109:55:2525
293159913346,57cyclictest0-21swapper/1708:22:129
29400991328,76cyclictest0-21swapper/3109:00:2225
29400991320,78cyclictest0-21swapper/3107:30:0325
293159913244,59cyclictest0-21swapper/1712:02:549
29251991322,108cyclictest0-21swapper/209:05:1312
294009913130,61cyclictest0-21swapper/3112:30:5625
294009913130,61cyclictest0-21swapper/3112:30:5625
294009913127,63cyclictest0-21swapper/3111:21:1225
29400991310,76cyclictest0-21swapper/3109:24:5625
29400991310,74cyclictest0-21swapper/3107:14:1925
293629913120,50cyclictest0-21swapper/2510:15:2418
29255991310,78cyclictest0-21swapper/312:31:0023
29255991310,78cyclictest0-21swapper/312:31:0023
294009913028,72cyclictest0-21swapper/3112:01:0025
294009913025,64cyclictest0-21swapper/3109:52:4425
29400991300,78cyclictest0-21swapper/3107:38:2125
29400991300,77cyclictest0-21swapper/3111:10:1425
29362991300,76cyclictest0-21swapper/2511:07:2818
29343991300,74cyclictest0-21swapper/2210:10:1415
293159913053,57cyclictest0-21swapper/1709:38:059
293159913049,52cyclictest0-21swapper/1711:22:189
293159913044,58cyclictest0-21swapper/1710:14:249
293159913044,58cyclictest0-21swapper/1709:55:119
293159913029,71cyclictest0-21swapper/1708:41:589
293159913025,65cyclictest0-21swapper/1708:34:299
292749913035,94cyclictest0-21swapper/812:33:3330
292749913035,94cyclictest0-21swapper/812:33:3330
292749913034,95cyclictest0-21swapper/809:20:1130
29251991302,126cyclictest0-21swapper/212:00:0112
29251991302,126cyclictest0-21swapper/212:00:0012
294009912925,64cyclictest0-21swapper/3110:47:4625
293159912948,66cyclictest0-21swapper/1710:57:109
293159912944,62cyclictest0-21swapper/1709:11:209
293159912942,58cyclictest0-21swapper/1707:55:289
293159912929,73cyclictest0-21swapper/1712:31:149
293159912929,73cyclictest0-21swapper/1712:31:139
293159912929,67cyclictest0-21swapper/1708:50:199
293159912928,66cyclictest0-21swapper/1709:42:209
293159912928,65cyclictest0-21swapper/1709:49:029
293159912928,65cyclictest0-21swapper/1709:30:529
293159912927,73cyclictest0-21swapper/1712:39:479
293159912927,73cyclictest0-21swapper/1712:39:469
293159912927,68cyclictest0-21swapper/1711:50:369
293159912927,67cyclictest0-21swapper/1711:38:209
293159912927,67cyclictest0-21swapper/1711:38:199
293159912925,68cyclictest0-21swapper/1710:54:299
29251991292,100cyclictest0-21swapper/209:15:2312
293159912849,62cyclictest0-21swapper/1707:15:579
293159912844,53cyclictest0-21swapper/1707:45:199
293159912829,62cyclictest0-21swapper/1711:25:299
293159912828,67cyclictest0-21swapper/1711:09:289
293159912827,68cyclictest0-21swapper/1711:58:389
293159912827,68cyclictest0-21swapper/1711:58:389
293159912826,68cyclictest0-21swapper/1712:13:369
293159912826,68cyclictest0-21swapper/1712:13:369
293159912826,68cyclictest0-21swapper/1710:20:489
293159912825,68cyclictest0-21swapper/1711:14:329
293159912825,60cyclictest0-21swapper/1711:41:229
293159912825,60cyclictest0-21swapper/1711:41:219
29251991282,99cyclictest0-21swapper/209:29:1612
294009912725,68cyclictest0-21swapper/3112:37:2025
294009912725,68cyclictest0-21swapper/3112:37:2025
294009912725,59cyclictest0-21swapper/3108:28:5025
29400991270,74cyclictest0-21swapper/3110:17:5225
29383991271,91cyclictest0-21swapper/2811:15:1921
29362991275,69cyclictest0-21swapper/2512:20:4118
29362991275,69cyclictest0-21swapper/2512:20:4018
293439912749,56cyclictest0-21swapper/2210:33:1115
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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