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2022-11-29 - 20:04

x86 Intel Core i5-8265UE @1600 MHz, Linux 5.10.41-rt42 (Profile)

Latency plot of system in rack #a, 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, highest latencies:
System rackaslot8.osadl.org (updated Tue Nov 29, 2022 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
153742286223,19sleep20-21swapper/207:06:432
155472284253,21sleep10-21swapper/107:08:491
155512275243,21sleep00-21swapper/007:08:520
153752259224,21sleep30-21swapper/307:06:443
34962650,0sleep20-21swapper/210:27:572
128692560,0sleep00-21swapper/011:13:530
131402550,0sleep10-21swapper/111:14:061
265792540,1sleep10-21swapper/110:41:581
174452540,0sleep30-21swapper/312:15:423
241802530,0sleep20-21swapper/211:40:182
150082190,1sleep215007-21irqstats09:15:172
252472170,0sleep20-21swapper/210:00:512
166022140,0sleep10-21swapper/111:15:261
153882140,0sleep10-21swapper/110:35:221
278782130,0chrt0-21swapper/310:43:013
1577699112,2cyclictest508-21dbus-daemon09:04:502
1576799118,2cyclictest12-21ksoftirqd/009:25:000
1577699108,2cyclictest28-21ksoftirqd/207:25:012
1577699103,5cyclictest28-21ksoftirqd/210:13:552
1576799109,1cyclictest12-21ksoftirqd/009:10:000
1576799108,1cyclictest12-21ksoftirqd/010:35:000
1576799103,1cyclictest141rcu_preempt09:50:240
1576799101,5cyclictest12-21ksoftirqd/009:35:000
30231290,0sleep10-21swapper/110:24:531
157769996,2cyclictest15282-21ssh12:15:132
157769993,1cyclictest141rcu_preempt12:10:422
157769992,5cyclictest28-21ksoftirqd/209:44:582
157769992,5cyclictest10627-21kworker/2:010:35:392
157769992,4cyclictest0-21swapper/208:50:162
157769992,4cyclictest0-21swapper/208:50:162
157679997,2cyclictest12-21ksoftirqd/012:30:000
157679997,2cyclictest12-21ksoftirqd/010:05:000
157679997,1cyclictest12-21ksoftirqd/008:05:000
157679996,2cyclictest12-21ksoftirqd/010:55:010
157679994,3cyclictest12-21ksoftirqd/012:15:140
157679993,4cyclictest12-21ksoftirqd/009:43:430
157679993,3cyclictest7222-21apt-get12:30:140
157679992,4cyclictest141rcu_preempt10:45:150
157679992,4cyclictest12-21ksoftirqd/011:23:540
157679992,1cyclictest131rcuc/009:10:010
157679990,6cyclictest12-21ksoftirqd/010:35:230
157829987,1cyclictest34-21ksoftirqd/308:40:003
157829983,3cyclictest283-21systemd-journal08:54:493
157829983,3cyclictest283-21systemd-journal08:54:493
157769987,1cyclictest28-21ksoftirqd/211:25:012
157769987,1cyclictest28-21ksoftirqd/209:25:002
157769986,1cyclictest28-21ksoftirqd/207:15:022
157769983,4cyclictest28-21ksoftirqd/212:31:182
157769983,1cyclictest141rcu_preempt11:05:102
157769983,1cyclictest141rcu_preempt07:56:402
157769982,4cyclictest28-21ksoftirqd/212:36:052
157769982,4cyclictest28-21ksoftirqd/211:35:322
157769982,4cyclictest28-21ksoftirqd/209:57:032
157769982,4cyclictest28-21ksoftirqd/209:35:332
157769982,4cyclictest0-21swapper/212:05:482
157769982,4cyclictest0-21swapper/212:01:292
157769982,4cyclictest0-21swapper/211:11:132
157769982,4cyclictest0-21swapper/210:30:252
157769982,1cyclictest141rcu_preempt10:40:122
157769982,1cyclictest141rcu_preempt09:23:362
157769982,1cyclictest141rcu_preempt09:10:082
157769981,5cyclictest28-21ksoftirqd/211:50:152
157769981,5cyclictest28-21ksoftirqd/211:46:272
157769981,5cyclictest28-21ksoftirqd/211:17:122
157769981,5cyclictest28-21ksoftirqd/211:00:102
157769981,5cyclictest28-21ksoftirqd/210:55:032
157769981,5cyclictest0-21swapper/212:26:072
157769981,5cyclictest0-21swapper/207:25:182
157769981,4cyclictest28-21ksoftirqd/212:20:032
157769981,4cyclictest28-21ksoftirqd/211:32:102
157769981,4cyclictest28-21ksoftirqd/211:20:072
157769981,4cyclictest28-21ksoftirqd/210:46:212
157769981,4cyclictest28-21ksoftirqd/210:16:182
157769981,4cyclictest28-21ksoftirqd/210:05:252
157769981,4cyclictest28-21ksoftirqd/209:46:062
157769981,4cyclictest28-21ksoftirqd/209:30:082
157769981,3cyclictest0-21swapper/210:20:242
157769981,2cyclictest28-21ksoftirqd/210:50:152
157769981,1cyclictest15323-21apt-get11:55:132
157769980,5cyclictest15188-21taskset08:19:422
157769980,4cyclictest0-21swapper/209:51:302
157769980,1cyclictest29741-11brltty07:42:142
157719986,1cyclictest20369-21ssh11:57:581
157719984,3cyclictest283-21systemd-journal11:39:281
157679987,1cyclictest12-21ksoftirqd/009:00:000
157679986,1cyclictest12-21ksoftirqd/011:30:000
157679986,1cyclictest12-21ksoftirqd/009:35:000
157679985,1cyclictest12-21ksoftirqd/009:28:590
157679984,3cyclictest508-21dbus-daemon12:37:320
157679984,3cyclictest508-21dbus-daemon08:16:510
157679983,3cyclictest141rcu_preempt11:02:190
157679983,3cyclictest141rcu_preempt10:17:410
157679983,3cyclictest141rcu_preempt10:13:360
157679983,3cyclictest12-21ksoftirqd/010:22:110
157679983,1cyclictest141rcu_preempt08:45:160
157679982,4cyclictest12-21ksoftirqd/012:00:170
157679982,4cyclictest12-21ksoftirqd/011:15:420
157679982,4cyclictest12-21ksoftirqd/010:25:220
157679982,4cyclictest12-21ksoftirqd/009:56:580
157679982,4cyclictest12-21ksoftirqd/008:50:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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