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2023-05-31 - 17:02

x86 Intel Celeron M @1600 MHz, Linux 5.4.74-rt41 (Profile)

Latency plot of system in rack #6, 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 -n -a0 -t1 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Characteristics of the 100 highest latencies:
System rack6slot6.osadl.org (updated Wed May 31, 2023 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38919910702353446,53487cyclictest132050irq/9-eth008:16:540
38919910700353438,53473cyclictest0-21swapper10:41:460
38919910686653451,53415cyclictest0-21swapper08:39:210
38919910671553435,53280cyclictest0-21swapper12:34:080
38919910670353426,53277cyclictest0-21swapper07:28:200
38919910669353399,53294cyclictest0-21swapper10:57:300
38919910655853392,53103cyclictest9-21ksoftirqd/012:36:590
38919910654753387,53069cyclictest0-21swapper11:45:040
38919910653853383,53065cyclictest0-21swapper11:50:460
38919910650053472,53028cyclictest0-21swapper10:28:220
38919910647553460,53015cyclictest0-21swapper08:46:530
38919910646853411,53057cyclictest0-21swapper11:33:310
38919910644353448,52995cyclictest0-21swapper09:04:280
38919910643553439,52996cyclictest0-21swapper10:48:380
38919910639253459,52870cyclictest3950irq/9-acpi10:15:580
38919910638153397,52984cyclictest0-21swapper08:08:220
38919910625653386,52805cyclictest0-21swapper08:52:040
38919910625453453,52801cyclictest0-21swapper07:50:160
38919910622053477,52743cyclictest0-21swapper12:29:270
38919910620253470,52732cyclictest0-21swapper07:17:270
38919910619453461,52733cyclictest0-21swapper07:56:180
38919910616453449,52715cyclictest0-21swapper10:01:140
38919910616153406,52755cyclictest0-21swapper07:47:560
38919910615653441,52715cyclictest0-21swapper08:57:060
38919910613553431,52704cyclictest0-21swapper11:28:290
38919910600953410,52599cyclictest0-21swapper12:01:490
38919910588753361,52513cyclictest0-21swapper11:17:560
38919910580453286,52518cyclictest0-21swapper12:09:310
38919910550853029,52477cyclictest18163-21ssh09:50:510
38919910535853075,52283cyclictest0-21swapper11:09:140
38919910510052940,52160cyclictest0-21swapper11:42:230
3891995388824,0cyclictest0-21swapper11:11:340
3891995361827,182cyclictest21032-21diskmemload11:58:480
3891995351553467,48cyclictest0-21swapper08:24:560
3891995327032,0cyclictest13930-21ssh11:22:280
3891995322925,53204cyclictest0-21swapper12:20:540
3891995313324,53109cyclictest0-21swapper07:11:150
3891995307726,53051cyclictest0-21swapper09:59:140
3891995301052987,21cyclictest0-21swapper12:19:540
3891995288726,52777cyclictest0-21swapper08:10:520
38919924311099,1232cyclictest21266-21munin-node09:10:190
38919922351023,1087cyclictest1918-21snmpd08:26:070
38919922111007,1113cyclictest4242-1kworker/0:1H09:15:510
38919921861079,983cyclictest21032-21diskmemload09:37:570
38919921851027,1066cyclictest3950irq/9-acpi10:05:450
38919921701089,955cyclictest2109-21runrttasks08:42:520
38919920871033,1019cyclictest0-21swapper09:28:450
38919920781004,1039cyclictest0-21swapper08:02:200
38919920541018,1036cyclictest0-21swapper10:14:480
38919920321003,995cyclictest0-21swapper07:44:250
38919920281021,884cyclictest1918-21snmpd09:42:590
3891992022964,1023cyclictest0-21swapper11:36:320
38919920211097,860cyclictest9-21ksoftirqd/010:24:510
38919919821027,955cyclictest0-21swapper10:36:240
38919919821019,929cyclictest0-21swapper09:05:180
38919919751094,755cyclictest2621-21gconfd-208:34:390
38919919621004,922cyclictest13489-21ssh09:45:200
3891991942940,981cyclictest0-21swapper10:50:180
38919918921064,729cyclictest2109-21runrttasks07:35:120
3891991866960,870cyclictest5925-21ssh09:34:260
38919918531060,698cyclictest3950irq/9-acpi10:31:430
3891991779947,818cyclictest3950irq/9-acpi12:10:510
38919917421089,562cyclictest9-21ksoftirqd/011:00:510
38919917191080,639cyclictest0-21swapper07:32:210
38919916311094,469cyclictest0-21swapper07:24:090
38919916181030,490cyclictest30349-21ssh09:22:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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