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2023-01-29 - 04:36

x86 Intel Celeron G1620 @2700 MHz, Linux 5.10.35-rt39 (Profile)

Latency plot of system in rack #8, slot #7
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: ondemand
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack8slot7.osadl.org (updated Sun Jan 29, 2023 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291499181,3cyclictest17942-21x2golistsession22:58:220
291499160,15cyclictest632-21irqbalance20:00:210
291599150,1cyclictest30232-21x2golistsession23:07:511
291599130,12cyclictest632-21irqbalance23:32:521
2914991310,2cyclictest22446-21x2gosqlitewrapp23:01:220
291499130,12cyclictest0-21swapper/023:29:410
291599120,12cyclictest0-21swapper/123:04:321
291599120,12cyclictest0-21swapper/100:12:011
291599120,0cyclictest0-21swapper/123:42:411
291499120,12cyclictest0-21swapper/023:31:420
291499120,12cyclictest0-21swapper/021:48:110
291499120,12cyclictest0-21swapper/019:24:510
291499120,0cyclictest0-21swapper/000:15:510
291599111,4cyclictest12204-21x2gosqlitewrapp22:28:361
291599111,1cyclictest131rcu_preempt22:50:231
2915991111,0cyclictest0-21swapper/123:45:021
2915991111,0cyclictest0-21swapper/123:17:121
2915991111,0cyclictest0-21swapper/100:03:521
2914991111,0cyclictest0-21swapper/000:12:310
291499110,6cyclictest6800-21awk22:50:000
291599108,1cyclictest4300-21x2golistsession21:31:011
291599107,2cyclictest21-21ksoftirqd/122:10:001
291599106,3cyclictest19894-21ssh21:18:301
291599106,3cyclictest11405-21ssh22:02:101
291599105,4cyclictest32219-21x2gosqlitewrapp22:44:251
291599105,4cyclictest29461-21x2gosqlitewrapp19:54:201
291599105,2cyclictest21-21ksoftirqd/123:55:011
291599105,2cyclictest21-21ksoftirqd/121:40:441
291599105,2cyclictest21-21ksoftirqd/100:22:081
291599104,1cyclictest131rcu_preempt00:30:501
291599103,4cyclictest21861-21x2gosqlitewrapp23:26:171
291599102,5cyclictest22824-21x2gosqlitewrapp21:20:241
291599102,4cyclictest21-21ksoftirqd/122:20:111
291599102,2cyclictest21-21ksoftirqd/121:11:051
2915991010,0cyclictest0-21swapper/123:14:321
2915991010,0cyclictest0-21swapper/121:56:011
2915991010,0cyclictest0-21swapper/121:28:211
291499105,4cyclictest24454-21x2gosqlitewrapp23:54:280
291499101,4cyclictest21931-21ntp_states22:10:230
2914991010,0cyclictest0-21swapper/023:20:210
2914991010,0cyclictest0-21swapper/000:23:020
291499100,6cyclictest18018-21awk19:35:000
29159997,1cyclictest43850irq/30-topwin21:45:391
29159997,1cyclictest31201-21x2gosqlitewrapp20:51:071
29159996,2cyclictest21-21ksoftirqd/122:15:231
29159996,2cyclictest21-21ksoftirqd/119:35:001
29159996,2cyclictest11158-21x2gosqlitewrapp20:17:271
29159995,3cyclictest2257-21x2gosqlitewrapp20:01:481
29159995,3cyclictest1697-21ssh23:35:411
29159994,2cyclictest21-21ksoftirqd/123:20:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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