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Default latency plot of system in rack #7, slot #2

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system

Characteristics of the 50 highest latencies:

System rack7slot2.osadl.org (updated Mon May 11, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
163173	99	92	85,5	cyclictest	190082	-21	kworker/u4:4+events_unbound	08:55:37	0
163173	99	90	51,35	cyclictest	0	-21	swapper/0	11:35:44	0
163173	99	88	43,12	cyclictest	300964	-21	unixbench_multi	11:10:40	0
163175	99	81	65,12	cyclictest	262679	-21	kworker/u4:1+events_unbound	10:35:35	1
163173	99	78	68,7	cyclictest	166989	-21	kworker/u4:8+events_unbound	07:30:01	0
163175	99	76	42,31	cyclictest	264356	-21	latency_hist	10:30:01	1
163173	99	76	69,5	cyclictest	341561	-21	kworker/u4:13+events_unbound	12:06:11	0
163173	99	75	68,5	cyclictest	337146	-21	kworker/u4:5+events_unbound	12:01:10	0
163175	99	74	66,6	cyclictest	332691	-21	kworker/u4:3+events_unbound	11:55:00	1
163175	99	74	34,37	cyclictest	0	-21	swapper/1	09:30:38	1
163175	99	71	66,3	cyclictest	337145	-21	kworker/u4:0+events_unbound	11:56:11	1
163175	99	69	40,26	cyclictest	243688	-21	find	10:05:39	1
163175	99	69	34,33	cyclictest	229796	-21	fschecks_count	09:50:21	1
163175	99	67	61,4	cyclictest	190082	-21	kworker/u4:4+events_unbound	08:55:01	1
163175	99	67	39,25	cyclictest	366344	-21	mailstats	12:25:39	1
163175	99	67	3,16	cyclictest	1066	-21	snmpd	11:30:35	1
163173	99	67	58,6	cyclictest	218628	-21	kworker/u4:6+events_unbound	10:05:51	0
163173	99	67	58,6	cyclictest	192655	-21	kworker/u4:14+events_unbound	09:20:46	0
163173	99	67	45,5	cyclictest	293250	-21	kworker/u4:1+events_unbound	11:41:09	0
163175	99	66	44,20	cyclictest	361614	-21	netstat	12:20:24	1
163175	99	66	32,30	cyclictest	0	-21	swapper/1	10:20:17	1
163175	99	64	36,26	cyclictest	398	-21	systemd-logind	10:55:54	1
163175	99	64	31,29	cyclictest	0	-21	swapper/1	10:50:21	1
163175	99	64	31,29	cyclictest	0	-21	swapper/1	09:25:29	1
163175	99	64	25,37	cyclictest	0	-21	swapper/1	09:15:28	1
163175	99	64	25,36	cyclictest	0	-21	swapper/1	11:35:24	1
163175	99	63	55,6	cyclictest	308490	-21	apt-get	11:20:14	1
163175	99	63	39,21	cyclictest	173627	-21	date	07:50:01	1
163175	99	63	33,27	cyclictest	343900	-21	cut	12:00:22	1
163175	99	63	32,27	cyclictest	0	-21	swapper/1	10:40:26	1
163175	99	63	30,30	cyclictest	0	-21	swapper/1	11:10:24	1
163175	99	62	32,27	cyclictest	0	-21	swapper/1	09:55:26	1
163175	99	62	31,29	cyclictest	0	-21	swapper/1	12:35:20	1
163175	99	62	28,32	cyclictest	0	-21	swapper/1	12:15:38	1
163175	99	62	28,31	cyclictest	0	-21	swapper/1	12:10:18	1
163175	99	62	28,31	cyclictest	0	-21	swapper/1	11:40:22	1
163175	99	62	23,36	cyclictest	291434	-21	grep	11:00:22	1
163175	99	62	22,38	cyclictest	194463	-21	hostname	09:10:21	1
163173	99	62	47,5	cyclictest	193927	-21	kworker/u4:18+events_unbound	09:10:46	0
163175	99	61	30,29	cyclictest	279055	-21	sed	10:45:41	1
163175	99	61	30,28	cyclictest	0	-21	swapper/1	10:30:42	1
163175	99	61	29,28	cyclictest	0	-21	swapper/1	11:25:22	1
163175	99	61	26,32	cyclictest	242401	-21	sort	10:05:02	1
163175	99	61	25,33	cyclictest	0	-21	swapper/1	09:05:16	1
163175	99	61	25,32	cyclictest	0	-21	swapper/1	11:45:19	1
163173	99	61	49,8	cyclictest	334997	-21	df	11:50:16	0
163175	99	60	50,7	cyclictest	232017	-21	kworker/u4:5+events_unbound	10:15:54	1
163175	99	60	41,17	cyclictest	185001	-21	munin-plugin-st	08:35:01	1
163175	99	60	27,30	cyclictest	0	-21	swapper/1	11:10:00	1
163175	99	60	25,31	cyclictest	0	-21	swapper/1	09:00:30	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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