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Default latency plot of system in rack #3, slot #6

Click here to display the system's profile data or here to proceed to next system.

Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 50 highest latencies:

System rack3slot6.osadl.org (updated Fri Apr 03, 2026 12:45:02)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
17128	99	112	81,21	cyclictest	26	-21	ksoftirqd/1	09:45:13	1
16960	2	112	30,26	sleep1	0	-21	swapper/1	07:09:43	1
17128	99	104	70,20	cyclictest	26	-21	ksoftirqd/1	08:00:14	1
17128	99	102	70,21	cyclictest	26	-21	ksoftirqd/1	08:45:11	1
17128	99	102	68,19	cyclictest	26	-21	ksoftirqd/1	11:25:14	1
17128	99	100	68,20	cyclictest	26	-21	ksoftirqd/1	08:25:13	1
17128	99	100	68,20	cyclictest	26	-21	ksoftirqd/1	08:25:13	1
17128	99	97	61,22	cyclictest	26	-21	ksoftirqd/1	11:00:26	1
17128	99	97	61,22	cyclictest	26	-21	ksoftirqd/1	09:00:15	1
15502	2	96	0,5	chrt	36	-21	kcompactd0	08:35:16	1
17128	99	93	58,23	cyclictest	26	-21	ksoftirqd/1	12:05:14	1
17128	99	92	57,21	cyclictest	26	-21	ksoftirqd/1	07:25:12	1
17128	99	92	54,24	cyclictest	26	-21	ksoftirqd/1	08:10:14	1
17128	99	92	45,34	cyclictest	503	-21	snmpd	11:40:16	1
17128	99	91	65,15	cyclictest	26	-21	ksoftirqd/1	09:50:23	1
17128	99	91	56,22	cyclictest	26	-21	ksoftirqd/1	07:20:12	1
17128	99	91	32,24	cyclictest	0	-21	swapper/1	11:35:11	1
17128	99	91	32,24	cyclictest	0	-21	swapper/1	11:35:11	1
17128	99	90	63,17	cyclictest	26	-21	ksoftirqd/1	08:55:13	1
17128	99	90	51,26	cyclictest	26	-21	ksoftirqd/1	10:05:17	1
17128	99	89	58,20	cyclictest	26	-21	ksoftirqd/1	11:45:10	1
17128	99	89	54,23	cyclictest	26	-21	ksoftirqd/1	09:35:14	1
17128	99	89	53,23	cyclictest	26	-21	ksoftirqd/1	07:30:11	1
17128	99	89	49,28	cyclictest	26	-21	ksoftirqd/1	10:35:14	1
17128	99	88	54,22	cyclictest	26	-21	ksoftirqd/1	11:20:15	1
17128	99	88	50,25	cyclictest	26	-21	ksoftirqd/1	10:50:12	1
17128	99	87	59,17	cyclictest	26	-21	ksoftirqd/1	11:05:11	1
17128	99	87	59,17	cyclictest	26	-21	ksoftirqd/1	09:25:11	1
17128	99	87	55,20	cyclictest	26	-21	ksoftirqd/1	09:30:15	1
17128	99	87	50,23	cyclictest	26	-21	ksoftirqd/1	07:55:11	1
17128	99	86	51,23	cyclictest	26	-21	ksoftirqd/1	12:35:22	1
17128	99	86	47,27	cyclictest	26	-21	ksoftirqd/1	08:20:14	1
17128	99	85	46,26	cyclictest	26	-21	ksoftirqd/1	10:45:14	1
17122	99	85	14,20	cyclictest	0	-21	swapper/0	11:30:13	0
17128	99	84	45,27	cyclictest	26	-21	ksoftirqd/1	10:30:21	1
17128	99	84	45,26	cyclictest	26	-21	ksoftirqd/1	12:30:13	1
17128	99	84	45,26	cyclictest	26	-21	ksoftirqd/1	12:10:14	1
17128	99	84	28,44	cyclictest	0	-21	swapper/1	09:20:14	1
17128	99	84	28,44	cyclictest	0	-21	swapper/1	09:20:14	1
17128	99	83	49,22	cyclictest	26	-21	ksoftirqd/1	08:30:11	1
17128	99	83	10,58	cyclictest	27645	-21	diskmemload	09:10:15	1
17128	99	83	10,57	cyclictest	910	-21	sendmail-mta	12:20:13	1
17128	99	82	41,28	cyclictest	26	-21	ksoftirqd/1	07:40:14	1
17128	99	81	8,58	cyclictest	16744	-21	chrt	10:10:16	1
17128	99	81	39,31	cyclictest	26	-21	ksoftirqd/1	12:15:12	1
17128	99	81	13,55	cyclictest	0	-21	swapper/1	10:00:14	1
17128	99	80	10,58	cyclictest	0	-21	swapper/1	09:15:14	1
17128	99	79	41,26	cyclictest	26	-21	ksoftirqd/1	12:00:11	1
17128	99	79	39,27	cyclictest	26	-21	ksoftirqd/1	11:15:10	1
17128	99	79	39,27	cyclictest	26	-21	ksoftirqd/1	11:15:10	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17