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2022-08-13 - 17:51

x86 Intel Core i3-8145UE @2200 MHz, Linux 5.10.27-rt36 (Profile)

Latency plot of system in rack #e, slot #6
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 done
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rackeslot6.osadl.org (updated Wed Jan 19, 2022 12:44:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4098993736,1cyclictest13-21ksoftirqd/009:49:550
4099993228,2cyclictest151rcu_preempt11:55:201
4099993227,4cyclictest28726-21ssh10:40:101
4099993128,3cyclictest0-21swapper/110:22:501
4099993128,2cyclictest0-21swapper/111:02:401
4099993127,3cyclictest27651-21diskmemload11:21:401
4099993125,5cyclictest27738-21perf08:00:001
409999310,28cyclictest0-21swapper/112:21:401
409999310,0cyclictest0-21swapper/109:49:431
4098993129,1cyclictest141rcuc/011:41:220
410499300,29cyclictest27651-21diskmemload11:04:103
410499300,29cyclictest27651-21diskmemload09:16:493
4100993028,1cyclictest2395-21grep10:16:152
410099300,29cyclictest27651-21diskmemload12:27:032
410099300,29cyclictest27651-21diskmemload12:27:032
4099993028,2cyclictest0-21swapper/109:31:421
4099993028,1cyclictest27651-21diskmemload11:07:431
4099993028,1cyclictest27651-21diskmemload09:21:161
4099993028,1cyclictest0-21swapper/111:45:001
4099993027,3cyclictest27651-21diskmemload10:12:271
409999300,30cyclictest0-21swapper/112:31:421
409999300,30cyclictest0-21swapper/111:52:121
409999300,29cyclictest8660-21perf07:20:001
409999300,27cyclictest0-21swapper/110:50:001
409999300,1cyclictest551-21dbus-daemon07:40:001
409999300,0cyclictest0-21swapper/110:19:411
4098993030,0cyclictest141rcuc/009:41:310
4098993028,1cyclictest24019-21apt-get09:36:120
4098993028,1cyclictest0-21swapper/012:11:240
4098993028,1cyclictest0-21swapper/009:16:130
409899301,28cyclictest141rcuc/009:21:250
409899300,29cyclictest29671-21cut10:41:150
409899300,29cyclictest0-21swapper/011:11:150
4104992928,1cyclictest27651-21diskmemload12:34:313
4104992928,1cyclictest27651-21diskmemload10:25:383
4104992927,1cyclictest9719-21apt-get08:31:113
4104992927,1cyclictest27651-21diskmemload10:16:153
410499290,28cyclictest30753-21apt-get11:41:153
410499290,28cyclictest30296-21modprobe09:41:213
410499290,28cyclictest27651-21diskmemload12:19:083
410499290,28cyclictest27651-21diskmemload11:56:453
410499290,28cyclictest27651-21diskmemload11:35:123
410499290,28cyclictest27651-21diskmemload11:06:063
410499290,28cyclictest27651-21diskmemload10:50:473
410499290,28cyclictest27651-21diskmemload10:07:563
410499290,28cyclictest27651-21diskmemload10:00:473
410499290,28cyclictest27651-21diskmemload09:36:133
410499290,28cyclictest0-21swapper/312:10:493
410499290,28cyclictest0-21swapper/311:15:013
410499290,28cyclictest0-21swapper/310:35:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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