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2023-01-27 - 14:41

x86 Intel Celeron N3350 @1100 MHz, Linux 5.10.90-rt60 (Profile)

Latency plot of system in rack #c, slot #4
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 rackcslot4.osadl.org (updated Fri Jan 27, 2023 00:45:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28426092276181,59sleep00-21swapper/019:06:370
28411612266221,27sleep10-21swapper/119:05:051
159199610,4rtkit-daemon1590-21rtkit-daemon20:20:121
29971262580,3sleep00-21swapper/023:25:400
28563002580,4chrt0-21swapper/019:40:230
159199580,4rtkit-daemon1590-21rtkit-daemon23:12:291
30166542570,1sleep10-21swapper/123:52:151
159199560,4rtkit-daemon1590-21rtkit-daemon23:01:401
159199560,4rtkit-daemon1590-21rtkit-daemon23:01:391
159199560,4rtkit-daemon1590-21rtkit-daemon00:10:271
159199550,4rtkit-daemon1590-21rtkit-daemon23:36:381
159199520,4rtkit-daemon1590-21rtkit-daemon23:56:251
159199520,4rtkit-daemon1590-21rtkit-daemon23:48:491
159199520,4rtkit-daemon1590-21rtkit-daemon19:51:471
159199520,3rtkit-daemon1590-21rtkit-daemon20:36:230
159199510,3rtkit-daemon1590-21rtkit-daemon22:36:000
159199500,4rtkit-daemon1590-21rtkit-daemon21:27:490
159199500,3rtkit-daemon1590-21rtkit-daemon23:07:470
159199490,4rtkit-daemon1590-21rtkit-daemon20:07:040
159199490,3rtkit-daemon1590-21rtkit-daemon22:52:581
159199480,4rtkit-daemon1590-21rtkit-daemon21:36:160
159199480,3rtkit-daemon1590-21rtkit-daemon19:20:321
159199470,5rtkit-daemon1590-21rtkit-daemon00:06:311
159199470,3rtkit-daemon1590-21rtkit-daemon23:41:570
159199470,3rtkit-daemon1590-21rtkit-daemon23:00:001
159199470,3rtkit-daemon1590-21rtkit-daemon23:00:001
159199470,3rtkit-daemon1590-21rtkit-daemon21:10:091
159199470,3rtkit-daemon1590-21rtkit-daemon20:10:410
159199460,3rtkit-daemon1590-21rtkit-daemon22:12:281
159199460,3rtkit-daemon1590-21rtkit-daemon20:02:490
159199460,1rtkit-daemon1590-21rtkit-daemon21:21:010
159199450,1rtkit-daemon1590-21rtkit-daemon21:57:170
159199450,1rtkit-daemon1590-21rtkit-daemon21:11:140
159199450,1rtkit-daemon1590-21rtkit-daemon00:14:490
159199440,4rtkit-daemon1590-21rtkit-daemon21:38:301
159199440,4rtkit-daemon1590-21rtkit-daemon00:01:501
159199440,1rtkit-daemon1590-21rtkit-daemon23:53:220
159199440,1rtkit-daemon1590-21rtkit-daemon20:51:210
159199440,1rtkit-daemon1590-21rtkit-daemon00:35:530
159199430,4rtkit-daemon1590-21rtkit-daemon21:53:301
159199430,3rtkit-daemon1590-21rtkit-daemon22:23:540
159199430,3rtkit-daemon1590-21rtkit-daemon20:34:360
159199430,3rtkit-daemon0-21swapper/022:15:391
159199430,1rtkit-daemon1590-21rtkit-daemon23:47:090
159199430,1rtkit-daemon1590-21rtkit-daemon21:46:160
159199430,1rtkit-daemon1590-21rtkit-daemon20:18:280
159199430,1rtkit-daemon1590-21rtkit-daemon00:21:590
159199430,1rtkit-daemon1590-21rtkit-daemon00:18:350
159199420,4rtkit-daemon1590-21rtkit-daemon22:06:171
159199420,4rtkit-daemon1590-21rtkit-daemon21:31:341
159199420,3rtkit-daemon2845113-21munin-node23:18:041
159199420,1rtkit-daemon1590-21rtkit-daemon21:09:490
159199420,1rtkit-daemon1590-21rtkit-daemon20:42:280
159199420,1rtkit-daemon1590-21rtkit-daemon19:27:420
2843008994117,12cyclictest26-21ksoftirqd/121:25:001
284300899410,10cyclictest286119450http19:55:141
2843007994127,6cyclictest2861159-21cron19:55:010
159199410,4rtkit-daemon1590-21rtkit-daemon22:47:061
159199410,3rtkit-daemon1590-21rtkit-daemon22:11:340
159199410,1rtkit-daemon1590-21rtkit-daemon19:18:180
159199410,1rtkit-daemon1590-21rtkit-daemon19:10:450
2843008994015,2cyclictest141rcu_preempt19:15:241
159199400,4rtkit-daemon1590-21rtkit-daemon20:56:151
159199400,3rtkit-daemon0-21swapper/122:36:501
159199390,3rtkit-daemon0-21swapper/023:22:051
159199380,3rtkit-daemon1590-21rtkit-daemon20:29:161
159199380,12rtkit-daemon0-21swapper/120:28:470
159199370,4rtkit-daemon1590-21rtkit-daemon20:16:071
159199370,3rtkit-daemon837-21thermald22:24:011
159199370,3rtkit-daemon1590-21rtkit-daemon20:44:581
159199370,3rtkit-daemon1590-21rtkit-daemon20:35:471
159199370,3rtkit-daemon0-21swapper/023:29:021
284300899368,8cyclictest0-21swapper/119:40:001
2843007993621,7cyclictest2852209-21grep19:30:210
2843007993620,8cyclictest2847998-21cut19:20:190
284300899353,3cyclictest2859239-21awk19:49:591
284300899341,22cyclictest2869376-21awk20:15:001
159199340,3rtkit-daemon0-21swapper/023:32:320
159199340,3rtkit-daemon0-21swapper/023:07:221
2843008993314,2cyclictest141rcu_preempt22:00:231
2843007993317,2cyclictest0-21swapper/019:35:020
2843008993210,11cyclictest26-21ksoftirqd/122:30:231
2843008993210,11cyclictest26-21ksoftirqd/122:30:231
284300899320,7cyclictest2849877-21grep19:25:181
284300899320,6cyclictest2844371-21grep19:10:291
284300899320,2cyclictest0-21swapper/122:40:451
284300899317,3cyclictest141rcu_preempt19:40:191
284300899316,6cyclictest0-21swapper/121:16:331
2843008993120,3cyclictest2852405-21grep19:30:251
2843007993116,3cyclictest13-21ksoftirqd/019:50:000
284300899308,10cyclictest3044263-21apt-get00:30:151
284300899305,11cyclictest141rcu_preempt20:49:591
159199300,4rtkit-daemon1590-21rtkit-daemon23:10:080
30270322290,3chrt0-21swapper/000:05:220
284300899287,10cyclictest26-21ksoftirqd/100:20:161
284300899282,6cyclictest2890944-21diskmemload21:49:171
284300899281,14cyclictest2890944-21diskmemload00:16:091
284300899281,13cyclictest2890944-21diskmemload23:40:081
2843007992819,7cyclictest2968709-40lsb_release22:50:120
2843007992814,8cyclictest2918902-1kworker/u9:122:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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