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2022-08-19 - 14:22

x86 Intel Atom E3845 @1915 MHz, Linux 4.19.37-rt20 (Profile)

Latency plot of system in rack #b, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
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, highest latencies:
System rackbslot6.osadl.org (updated Fri Aug 19, 2022 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2671621540,4sleep0845599cyclictest01:40:280
911911060,3ptp4l401ktimersoftd/322:04:263
88192740,4sleep3847399cyclictest02:30:343
91191690,1ptp4l401ktimersoftd/303:00:113
91191670,1ptp4l401ktimersoftd/300:12:353
80742644,48sleep00-21swapper/022:01:520
91191620,1ptp4l401ktimersoftd/301:32:583
324942610,5sleep3847399cyclictest00:00:413
91191600,1ptp4l401ktimersoftd/302:19:433
91191600,1ptp4l401ktimersoftd/301:17:343
91191600,1ptp4l401ktimersoftd/301:17:343
91191580,1ptp4l401ktimersoftd/301:27:213
91191580,1ptp4l401ktimersoftd/300:18:543
104312580,4sleep2846899cyclictest02:31:012
218612560,2sleep0845599cyclictest01:00:080
91191510,1ptp4l401ktimersoftd/323:32:093
82242494,34sleep10-21swapper/122:03:511
91191480,1ptp4l401ktimersoftd/323:27:053
91191460,12ptp4l9396-21kworker/3:100:42:393
91191460,12ptp4l401ktimersoftd/301:42:293
249062440,2sleep30-21swapper/323:45:273
91191430,0ptp4l401ktimersoftd/301:12:493
91191430,0ptp4l401ktimersoftd/301:12:493
249192420,1sleep00-21swapper/002:46:330
8461994134,4cyclictest25-21ksoftirqd/101:45:421
91191400,1ptp4l401ktimersoftd/302:06:003
8461994033,4cyclictest25-21ksoftirqd/103:05:461
91191390,1ptp4l401ktimersoftd/302:15:053
91191390,1ptp4l401ktimersoftd/301:36:083
91191390,1ptp4l401ktimersoftd/301:22:253
91191390,1ptp4l401ktimersoftd/300:09:263
8461993933,3cyclictest25-21ksoftirqd/122:55:381
204312390,5sleep0101ktimersoftd/001:32:170
91191380,1ptp4l401ktimersoftd/303:09:153
91191380,1ptp4l401ktimersoftd/302:29:343
91191380,1ptp4l401ktimersoftd/302:02:313
91191380,1ptp4l401ktimersoftd/300:37:263
91191380,1ptp4l401ktimersoftd/300:32:013
91191380,0ptp4l401ktimersoftd/303:01:193
91191380,0ptp4l401ktimersoftd/300:54:523
8461993832,3cyclictest25-21ksoftirqd/122:30:391
8461993832,3cyclictest25-21ksoftirqd/101:25:411
91191370,1ptp4l401ktimersoftd/323:23:083
91191370,1ptp4l401ktimersoftd/322:29:463
91191370,1ptp4l401ktimersoftd/303:22:223
91191370,1ptp4l401ktimersoftd/302:21:503
91191370,1ptp4l401ktimersoftd/301:03:193
91191370,1ptp4l401ktimersoftd/300:56:173
91191370,1ptp4l401ktimersoftd/300:29:063
91191370,0ptp4l401ktimersoftd/301:09:573
91191360,1ptp4l401ktimersoftd/302:55:163
91191360,1ptp4l401ktimersoftd/301:51:393
91191360,1ptp4l401ktimersoftd/301:49:553
91191360,12ptp4l401ktimersoftd/303:33:193
91191360,0ptp4l401ktimersoftd/302:42:013
8461993630,4cyclictest25-21ksoftirqd/122:25:381
8461993629,4cyclictest25-21ksoftirqd/122:40:381
91191350,1ptp4l401ktimersoftd/303:19:273
91191350,0ptp4l401ktimersoftd/303:25:553
846199354,16cyclictest25-21ksoftirqd/102:40:301
8461993529,3cyclictest25-21ksoftirqd/103:10:461
91191340,1ptp4l401ktimersoftd/323:01:433
91191340,1ptp4l401ktimersoftd/322:44:133
8461993428,3cyclictest25-21ksoftirqd/122:45:381
8461993428,3cyclictest25-21ksoftirqd/122:35:391
846199336,7cyclictest121rcu_preempt01:19:001
846199336,7cyclictest121rcu_preempt01:19:001
91191320,1ptp4l401ktimersoftd/323:45:453
91191320,1ptp4l401ktimersoftd/322:34:093
91191320,1ptp4l401ktimersoftd/322:17:143
91191320,1ptp4l401ktimersoftd/303:14:193
91191320,1ptp4l401ktimersoftd/302:00:113
846199324,4cyclictest25-21ksoftirqd/101:30:481
8461993224,4cyclictest25-21ksoftirqd/123:35:411
8461993221,9cyclictest25-21ksoftirqd/100:10:481
91191310,0ptp4l401ktimersoftd/323:06:043
846199314,3cyclictest121rcu_preempt00:10:181
8461993124,3cyclictest25-21ksoftirqd/102:43:261
8461993110,4cyclictest25-21ksoftirqd/101:37:431
91191300,0ptp4l401ktimersoftd/323:57:153
91191300,0ptp4l401ktimersoftd/300:20:383
846199309,4cyclictest25-21ksoftirqd/102:00:451
846199306,3cyclictest25-21ksoftirqd/102:16:011
8461993025,3cyclictest25-21ksoftirqd/101:05:321
8461993024,3cyclictest25-21ksoftirqd/123:40:301
8461993021,6cyclictest25-21ksoftirqd/123:10:261
8461993016,10cyclictest25-21ksoftirqd/103:30:521
846199298,4cyclictest25-21ksoftirqd/122:10:241
8461992919,3cyclictest25-21ksoftirqd/101:15:281
8461992919,3cyclictest25-21ksoftirqd/101:15:281
8461992914,12cyclictest25-21ksoftirqd/100:45:511
91191280,1ptp4l401ktimersoftd/323:12:523
91191280,1ptp4l401ktimersoftd/322:58:273
8468992822,3cyclictest13799-21cron22:15:242
8468992822,3cyclictest13799-21cron22:15:242
846199287,4cyclictest25-21ksoftirqd/102:50:151
8461992822,3cyclictest25-21ksoftirqd/103:00:451
8461992822,3cyclictest25-21ksoftirqd/102:20:511
8461992821,4cyclictest25-21ksoftirqd/100:50:411
8461992816,4cyclictest25-21ksoftirqd/100:25:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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