OSADL QA Farm on Real-time of Mainline Linux

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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 100 highest latencies:

System rack7slot2.osadl.org (updated Tue Jun 16, 2026 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3679081	99	100	90,7	cyclictest	3679008	-21	kworker/u4:4+events_unbound	07:20:01	1
3679081	99	91	83,6	cyclictest	3872621	-21	kworker/u4:8+events_unbound	12:14:45	1
3679081	99	86	78,6	cyclictest	3862977	-21	kworker/u4:7+events_unbound	12:24:47	1
3679080	99	86	21,60	cyclictest	256	50	irq/23-42890000.ethernet	12:10:17	0
3679081	99	85	77,5	cyclictest	3788187	-21	kworker/u4:11+events_unbound	10:39:31	1
3679081	99	85	77,5	cyclictest	3788187	-21	kworker/u4:11+events_unbound	10:39:30	1
3679080	99	84	63,14	cyclictest	3803518	-21	ssh	10:55:12	0
3679081	99	83	74,6	cyclictest	3756674	-21	kworker/u4:14+events_unbound	10:10:00	1
3679081	99	81	72,7	cyclictest	3725757	-21	kworker/u4:20+events_unbound	09:29:07	1
3679080	99	81	76,3	cyclictest	3872621	-21	kworker/u4:8+events_unbound	12:19:45	0
3679081	99	80	70,7	cyclictest	3770186	-21	kworker/u4:15+events_unbound	10:20:00	1
3679080	99	80	67,10	cyclictest	53	-21	kswapd0	11:40:00	0
3679081	99	77	68,6	cyclictest	3837182	-21	kworker/u4:4+events_unbound	11:34:39	1
3679080	99	75	3,67	cyclictest	3737347	-21	ssh	09:40:19	0
3679080	99	75	24,30	cyclictest	0	-21	swapper/0	10:20:27	0
3679080	99	74	45,18	cyclictest	0	-21	swapper/0	11:20:15	0
3679081	99	73	61,9	cyclictest	3665137	-21	kworker/u4:12+events_unbound	07:35:00	1
3679080	99	73	48,20	cyclictest	3679077	-21	cyclictest	09:35:13	0
3679080	99	71	2,16	cyclictest	3695762	-21	awk	08:14:59	0
3679081	99	70	63,5	cyclictest	3814631	-21	kworker/u4:6+events_unbound	11:09:34	1
3679080	99	69	38,28	cyclictest	3711498	-21	/usr/sbin/munin	09:10:41	0
3679080	99	69	33,30	cyclictest	3879251	-21	fschecks_time	12:20:19	0
3679081	99	68	57,4	cyclictest	3814633	-21	kworker/u4:11+events_unbound	11:14:35	1
3679081	99	67	54,9	cyclictest	53	-21	kswapd0	10:55:07	1
3679080	99	67	5,58	cyclictest	3830852	-21	ssh	11:25:27	0
3679081	99	66	57,6	cyclictest	3707220	-21	kworker/u4:8+events_unbound	09:17:01	1
3679080	99	66	26,37	cyclictest	0	-21	swapper/0	10:45:30	0
3679081	99	65	57,6	cyclictest	3819108	-21	kworker/u4:9+events_unbound	11:29:38	1
3679081	99	65	50,8	cyclictest	0	-21	swapper/1	11:50:37	1
3679080	99	65	60,3	cyclictest	3757334	-21	kworker/u4:16+events_unbound	10:14:23	0
3679080	99	65	56,6	cyclictest	53	-21	kswapd0	10:45:01	0
3679080	99	65	56,6	cyclictest	53	-21	kswapd0	10:45:00	0
3679080	99	65	28,34	cyclictest	0	-21	swapper/0	11:05:28	0
3679080	99	65	2,17	cyclictest	3705515	-21	ntpq	08:50:42	0
3679080	99	65	16,46	cyclictest	3883887	-21	memory	12:25:24	0
3679080	99	64	32,29	cyclictest	3680855	-21	gltestperf	07:15:18	0
3679080	99	64	3,15	cyclictest	3686280	-21	ntpq	07:35:30	0
3679080	99	64	30,32	cyclictest	3720279	-21	switchtime	09:20:41	0
3679080	99	64	27,34	cyclictest	3682103	-21	fschecks_time	07:20:19	0
3679080	99	64	27,33	cyclictest	0	-21	swapper/0	10:50:26	0
3679080	99	64	26,36	cyclictest	3741690	-21	cpu	09:45:15	0
3679080	99	64	26,36	cyclictest	3741690	-21	cpu	09:45:15	0
3679080	99	64	18,43	cyclictest	3852555	-21	cpu	11:50:17	0
3679080	99	64	17,44	cyclictest	3759788	-21	/usr/sbin/munin	10:05:28	0
3679081	99	63	56,5	cyclictest	3704676	-21	kworker/u4:5+events_unbound	08:50:00	1
3679081	99	63	56,5	cyclictest	3691881	-21	kworker/u4:1+events_unbound	08:10:01	1
3679080	99	63	4,18	cyclictest	3729248	-21	/usr/sbin/munin	09:30:38	0
3679080	99	63	30,30	cyclictest	3843623	-21	aten_r7power_po	11:40:18	0
3679080	99	63	28,32	cyclictest	3699811	-21	aten_r7power_cu	08:30:15	0
3679080	99	63	28,32	cyclictest	256	50	irq/23-42890000.ethernet	07:40:38	0
3679080	99	63	28,30	cyclictest	0	-21	swapper/0	11:30:25	0
3679080	99	63	2,58	cyclictest	3709830	-21	diskmemload	09:50:27	0
3679080	99	63	2,14	cyclictest	3865647	-21	apt-get	12:05:11	0
3679081	99	62	51,8	cyclictest	53	-21	kswapd0	10:30:19	1
3679080	99	62	4,18	cyclictest	3750316	-21	apt-get	09:55:11	0
3679080	99	62	33,27	cyclictest	3684182	-21	modprobe	07:30:01	0
3679080	99	62	29,30	cyclictest	0	-21	swapper/0	10:00:26	0
3679080	99	62	27,30	cyclictest	0	-21	swapper/0	11:45:24	0
3679080	99	62	2,11	cyclictest	3856769	-21	ssh	11:55:13	0
3679080	99	61	5,11	cyclictest	3821973	-21	ntpq	11:15:27	0
3679080	99	61	36,22	cyclictest	3862312	-21	wc	12:00:37	0
3679080	99	61	3,12	cyclictest	3807966	-21	apt-get	11:00:14	0
3679080	99	61	30,28	cyclictest	3702155	-21	sendmail	08:40:01	0
3679080	99	61	2,8	cyclictest	3688272	-21	apt-get	07:45:12	0
3679080	99	61	27,30	cyclictest	0	-21	swapper/0	10:15:15	0
3679080	99	61	23,34	cyclictest	3892079	-21	apt-get	12:35:12	0
3679080	99	61	18,38	cyclictest	3887653	-21	apt-get	12:30:12	0
3679081	99	60	52,6	cyclictest	3788189	-21	kworker/u4:15+events_unbound	10:54:31	1
3679080	99	60	3,9	cyclictest	3708718	-21	apt-get	09:05:14	0
3679080	99	60	3,11	cyclictest	3689542	-21	apt-get	07:50:13	0
3679080	99	60	29,28	cyclictest	0	-21	swapper/0	08:25:18	0
3679080	99	60	2,8	cyclictest	3817656	-21	ntpq	11:10:32	0
3679080	99	60	24,33	cyclictest	3715022	-21	sh	09:15:19	0
3679080	99	60	1,10	cyclictest	3786414	-21	ld	10:35:26	0
3679080	99	60	1,10	cyclictest	3786414	-21	ld	10:35:25	0
3679081	99	59	52,5	cyclictest	3788186	-21	kworker/u4:10+events_unbound	10:40:02	1
3679081	99	59	52,5	cyclictest	3788186	-21	kworker/u4:10+events_unbound	10:40:02	1
3679081	99	59	51,6	cyclictest	3707219	-21	kworker/u4:7+events_unbound	09:10:01	1
3679081	99	59	45,6	cyclictest	3859101	-21	kworker/u4:5+events_unbound	11:59:42	1
3679080	99	59	4,9	cyclictest	3697883	-21	ntpq	08:20:32	0
3679080	99	59	4,8	cyclictest	3693983	-21	ntpq	08:05:29	0
3679080	99	59	3,16	cyclictest	3691439	-21	ntpq	07:55:29	0
3679080	99	59	26,30	cyclictest	0	-21	swapper/0	08:00:17	0
3679080	99	59	2,11	cyclictest	3695920	-21	apt-get	08:15:12	0
3679081	99	58	50,6	cyclictest	3730334	-21	kworker/u4:5+events_unbound	09:40:00	1
3679080	99	58	3,8	cyclictest	3724319	-21	ssh	09:25:25	0
3679080	99	58	3,4	cyclictest	3776929	-21	apt-get	10:25:11	0
3679080	99	58	2,11	cyclictest	3707444	-21	apt-get	09:00:11	0
3679080	99	57	3,8	cyclictest	3706785	-21	ntpq	08:55:31	0
3679080	99	57	29,24	cyclictest	0	-21	swapper/0	10:30:32	0
3679080	99	57	2,15	cyclictest	3702972	-21	ntpq	08:40:34	0
3679081	99	56	45,8	cyclictest	3742704	-21	grep	09:45:39	1
3679081	99	56	45,8	cyclictest	3742704	-21	grep	09:45:38	1
3679081	99	56	34,7	cyclictest	3693179	-21	kworker/u4:7+events_unbound	08:20:01	1
3679080	99	56	3,8	cyclictest	3679781	-21	ntpq	07:10:25	0
3679080	99	56	12,40	cyclictest	3703655	-21	aten_r7power_cu	08:45:15	0
3679080	99	55	2,9	cyclictest	3684943	-21	/usr/sbin/munin	07:30:34	0
3679081	99	54	47,5	cyclictest	3698298	-21	kworker/u4:12+events_unbound	09:00:02	1
3679081	99	54	44,7	cyclictest	3761809	-21	kworker/u4:7+events_unbound	10:30:01	1
3679081	99	54	38,6	cyclictest	3739387	-21	kworker/u4:3+events_unbound	09:59:21	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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