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2022-07-06 - 16:11

x86 Intel Celeron M @1500 MHz, Linux 5.15.32-rt39 (Profile)

Latency plot of system in rack #6, slot #5
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, lowest P state: performance
Characteristics of the 792 highest latencies:
System rack6slot5.osadl.org (updated Wed Jul 06, 2022 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
80629960023343,2656cyclictest17263-21kworker/0:007:12:240
80629956783153,2514cyclictest17263-21kworker/0:007:18:540
78902771182,202sleep00-21swapper07:09:140
80629963826,597cyclictest29362-21diskmemload11:59:140
80629963525,596cyclictest20522-21kworker/0:211:42:040
80629960924,570cyclictest15299-21ls11:25:260
80629960924,569cyclictest20129-21cat11:36:230
80629953650,416cyclictest28064-21copy10:42:260
80629953626,495cyclictest11534-21switchtime10:01:040
80629953624,497cyclictest14478-21gltestperf07:25:240
80629953623,498cyclictest714-21ssh12:08:410
80629952626,485cyclictest29924-21ntp_states10:45:210
80629951724,478cyclictest9688-21sh09:56:410
80629951425,418cyclictest8738-21awk11:10:260
80629951124,471cyclictest11041-21rm12:34:290
80629950922,471cyclictest24663-21ls07:51:150
80629950822,472cyclictest31768-21sh12:05:020
80629950723,469cyclictest1027-21munin-node08:15:350
80629950025,413cyclictest20786-21diskmemload10:55:350
80629949946,439cyclictest4081-21ssh12:15:540
80629949165,256cyclictest8834-21runrttasks12:26:510
80629948155,366cyclictest5330-21ssh11:01:390
80629947948,371cyclictest26978-31updatedb.mlocat07:58:470
80629947938,382cyclictest345450irq/10-yenta08:55:040
8062994730,459cyclictest20786-21diskmemload09:50:150
80629947033,376cyclictest14957-21fschecks_count12:41:580
80629947023,387cyclictest22927-21ssh10:27:120
8062994664,448cyclictest28858-21wc09:26:510
8062994653,448cyclictest4906-21runrttasks09:31:430
8062994653,447cyclictest252582sleep010:32:440
80629946422,382cyclictest24960-21ssh09:18:540
80629946322,371cyclictest4279-21runrttasks08:25:120
8062994631,448cyclictest18902-21ssh10:19:140
80629946248,391cyclictest12339-21ssh12:36:240
8062994621,447cyclictest4202-21lldpd08:07:110
8062994621,447cyclictest2961-21ssh12:13:480
8062994621,447cyclictest14591-21ssh10:07:440
8062994621,446cyclictest20786-21diskmemload11:24:010
8062994611,446cyclictest1035-21ssh09:37:140
80629946068,379cyclictest126942sleep011:19:220
80629945748,349cyclictest20786-21diskmemload10:39:480
80629945624,408cyclictest3404-1kworker/u3:009:45:090
80629945554,333cyclictest16668-21wc08:57:000
80629945552,231cyclictest25022-21ssh11:49:370
80629945367,88cyclictest16027-21copy07:30:240
80629945281,358cyclictest4263-21lldpd08:46:520
8062994522,436cyclictest18682-21ssh11:33:400
8062994511,436cyclictest417-21strings10:51:110
8062994511,436cyclictest3113-21strings08:20:490
8062994511,436cyclictest20696-21ssh10:22:080
8062994511,436cyclictest16234-21ssh10:11:550
80629944955,381cyclictest8089-21rm11:08:240
8062994483,375cyclictest5696-21mailstats12:20:140
8062994463,429cyclictest21596-21copy07:46:350
80629944325,395cyclictest10450-21sshd08:40:370
80629943964,361cyclictest13-21rcuc/008:31:020
80629943670,352cyclictest3266-21seq09:42:110
80629943622,400cyclictest25780-21kworker/u2:309:23:410
8062994361,374cyclictest26708-21ssh11:52:040
8062994361,374cyclictest19852-21strings09:05:500
8062994343,370cyclictest27698-21gltestperf08:00:270
80629941754,363cyclictest0-21swapper07:24:300
80629941132,318cyclictest22024-21find09:11:380
80629940537,368cyclictest0-21swapper07:44:340
80629939454,326cyclictest17721-21awk09:00:330
80629936188,260cyclictest4263-21lldpd08:14:120
80629935933,153cyclictest4922-19udevd08:36:000
80629935692,251cyclictest13-21rcuc/007:35:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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