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 Sun Jun 28, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3478778	99	112	104,5	cyclictest	3478701	-21	kworker/u4:3+events_unbound	07:40:03	1
3478778	99	100	90,7	cyclictest	3485113	-21	kworker/u4:16+events_unbound	07:35:00	1
3478778	99	96	86,8	cyclictest	3492870	-21	kworker/u4:10+events_unbound	08:25:14	1
3478778	99	95	83,9	cyclictest	3490304	-21	kworker/u4:5+events_unbound	08:45:15	1
3478778	99	95	72,6	cyclictest	3560844	-21	kworker/u4:4+events_unbound	10:10:37	1
3478778	99	89	81,6	cyclictest	3644732	-21	kworker/u4:1+events_unbound	11:45:57	1
3478778	99	88	79,6	cyclictest	3506901	-21	kworker/u4:17+events_unbound	09:05:20	1
3478777	99	88	83,3	cyclictest	3653684	-21	kworker/u4:0+events_unbound	11:55:59	0
3478778	99	86	78,6	cyclictest	3487768	-21	kworker/u4:0+events_unbound	07:45:01	1
3478778	99	86	75,8	cyclictest	3478701	-21	kworker/u4:3+events_unbound	08:30:13	1
3478777	99	86	78,6	cyclictest	3539078	-21	kworker/u4:6+events_unbound	09:55:30	0
3478778	99	85	75,7	cyclictest	3565316	-21	kworker/u4:9+events_unbound	10:25:42	1
3478777	99	85	63,17	cyclictest	3627403	-21	kworker/u4:3-xprtiod	11:25:08	0
3478777	99	80	48,29	cyclictest	3541115	-21	ssh	09:45:13	0
3478777	99	80	2,19	cyclictest	3532992	-21	ssh	09:35:31	0
3478778	99	77	69,5	cyclictest	3539077	-21	kworker/u4:5+events_unbound	09:49:59	1
3478778	99	77	68,7	cyclictest	3479994	-21	kworker/u4:7+events_unbound	08:20:12	1
3478778	99	76	68,6	cyclictest	3653684	-21	kworker/u4:0+events_unbound	12:16:02	1
3478777	99	76	69,5	cyclictest	3478700	-21	kworker/u4:1+events_unbound	07:29:59	0
3478777	99	76	36,37	cyclictest	0	-21	swapper/0	10:25:13	0
3478777	99	74	39,32	cyclictest	256	50	irq/23-42890000.ethernet	09:40:42	0
3478778	99	73	65,6	cyclictest	3482572	-21	kworker/u4:13+events_unbound	08:40:01	1
3478777	99	72	30,38	cyclictest	0	-21	swapper/0	07:55:28	0
3478778	99	71	60,8	cyclictest	3475049	-21	kworker/u4:4+events_unbound	07:15:00	1
3478777	99	71	4,6	cyclictest	3677499	-21	munin-run	12:20:01	0
3478777	99	71	29,38	cyclictest	0	-21	swapper/0	07:20:00	0
3478778	99	69	58,8	cyclictest	3478700	-21	kworker/u4:1+events_unbound	08:15:01	1
3478777	99	69	60,7	cyclictest	3604909	-21	kworker/u4:10+events_unbound	11:20:52	0
3478777	99	69	32,35	cyclictest	3598539	-21	df_abs	10:50:16	0
3478778	99	68	60,6	cyclictest	3644735	-21	kworker/u4:5+events_unbound	12:36:08	1
3478777	99	68	37,28	cyclictest	3633995	-21	/usr/sbin/munin	11:30:20	0
3478777	99	68	32,34	cyclictest	3692132	-21	switchtime	12:35:38	0
3478778	99	67	60,5	cyclictest	3479994	-21	kworker/u4:7+events_unbound	08:15:10	1
3478777	99	67	3,13	cyclictest	3651306	-21	apt-get	11:50:10	0
3478778	99	66	56,6	cyclictest	3618388	-21	kworker/u4:1+events_unbound	11:25:00	1
3478778	99	66	48,6	cyclictest	3478701	-21	kworker/u4:3+events_unbound	08:00:01	1
3478777	99	66	6,12	cyclictest	3643155	-21	ntpq	11:40:23	0
3478777	99	66	58,6	cyclictest	3644735	-21	kworker/u4:5+events_unbound	12:30:00	0
3478777	99	66	58,6	cyclictest	3644735	-21	kworker/u4:5+events_unbound	12:29:59	0
3478777	99	66	50,10	cyclictest	3570161	-21	ssh	10:17:44	0
3478777	99	66	35,28	cyclictest	3546181	-21	ntp_kernel_pll_	09:50:25	0
3478777	99	66	2,15	cyclictest	3572578	-21	ssh	10:20:26	0
3478778	99	65	56,6	cyclictest	3678128	-21	fschecks_count	12:20:17	1
3478778	99	65	54,7	cyclictest	0	-21	swapper/1	08:40:14	1
3478777	99	65	33,29	cyclictest	3667154	-21	ssh	12:07:39	0
3478777	99	65	32,30	cyclictest	3494387	-21	aten_r7power_cu	08:10:15	0
3478777	99	64	3,14	cyclictest	3482140	-21	ntpq	07:20:31	0
3478778	99	63	56,5	cyclictest	3600428	-21	kworker/u4:2+events_unbound	10:55:47	1
3478777	99	63	30,30	cyclictest	3554965	-21	/usr/sbin/munin	10:00:24	0
3478777	99	63	24,36	cyclictest	0	-21	swapper/0	08:30:17	0
3478777	99	63	1,19	cyclictest	3505108	-21	ntpq	08:50:24	0
3478778	99	62	55,5	cyclictest	3604909	-21	kworker/u4:10+events_unbound	11:00:04	1
3478778	99	62	54,6	cyclictest	53	-21	kswapd0	10:19:59	1
3478777	99	62	32,26	cyclictest	3604904	-21	kworker/u4:3-rpciod	11:00:24	0
3478777	99	62	3,15	cyclictest	3489781	-21	ntpq	07:50:24	0
3478777	99	62	27,32	cyclictest	3485351	-21	aten_r7power_cu	07:35:15	0
3478777	99	62	26,33	cyclictest	0	-21	swapper/0	08:15:35	0
3478777	99	62	1,23	cyclictest	3559792	-21	/usr/sbin/munin	10:05:38	0
3478777	99	61	27,31	cyclictest	3507129	-21	aten2__	09:00:17	0
3478777	99	61	2,16	cyclictest	3585073	-21	apt-get	10:35:13	0
3478778	99	60	48,4	cyclictest	3479994	-21	kworker/u4:7+events_unbound	07:20:00	1
3478777	99	60	51,7	cyclictest	3600430	-21	kworker/u4:6+events_unbound	10:55:04	0
3478777	99	60	36,22	cyclictest	3669316	-21	grep	12:10:21	0
3478777	99	60	36,22	cyclictest	3669316	-21	grep	12:10:20	0
3478777	99	60	3,13	cyclictest	3563093	-21	apt-get	10:10:10	0
3478777	99	60	30,27	cyclictest	3611526	-21	sort	11:05:11	0
3478777	99	60	30,26	cyclictest	3485131	-21	cron	07:35:00	0
3478777	99	60	29,29	cyclictest	3661189	-21	mailstats	12:00:38	0
3478777	99	60	2,7	cyclictest	3509940	-21	aten_r7power_po	09:10:16	0
3478777	99	60	27,30	cyclictest	0	-21	swapper/0	12:20:18	0
3478777	99	60	26,31	cyclictest	0	-21	swapper/0	09:15:22	0
3478777	99	60	2,4	cyclictest	3646918	-21	apt-get	11:45:15	0
3478777	99	60	24,34	cyclictest	3509317	-21	timerwakeupswit	09:05:38	0
3478777	99	60	22,36	cyclictest	3618388	-21	kworker/u4:1-rpciod	11:15:24	0
3478777	99	60	16,9	cyclictest	3496917	-21	apt-get	08:20:12	0
3478778	99	59	52,5	cyclictest	3638491	-21	fschecks_time	11:35:18	1
3478778	99	59	51,6	cyclictest	3656277	-21	/usr/sbin/munin	11:55:20	1
3478778	99	59	51,6	cyclictest	3475049	-21	kworker/u4:4+events_unbound	07:45:04	1
3478777	99	59	30,26	cyclictest	0	-21	swapper/0	09:25:38	0
3478777	99	59	25,31	cyclictest	0	-21	swapper/0	10:45:24	0
3478777	99	59	22,33	cyclictest	0	-21	swapper/0	09:30:36	0
3478777	99	59	2,15	cyclictest	3501368	-21	ntpq	08:35:37	0
3478777	99	59	2,15	cyclictest	3479587	-21	ntpq	07:10:35	0
3478778	99	58	51,5	cyclictest	3569790	-21	kworker/u4:0+events_unbound	10:40:44	1
3478778	99	58	50,6	cyclictest	3585226	-21	/usr/sbin/munin	10:35:16	1
3478777	99	58	49,6	cyclictest	3574205	-21	kworker/u4:6+events_unbound	10:30:42	0
3478777	99	58	24,31	cyclictest	0	-21	swapper/0	11:35:15	0
3478778	99	57	51,3	cyclictest	3525489	-21	kworker/u4:1-rpciod	10:06:49	1
3478777	99	57	3,18	cyclictest	3687456	-21	ssh	12:30:32	0
3478777	99	57	28,27	cyclictest	3589619	-21	aten_r7power_po	10:40:16	0
3478777	99	57	24,30	cyclictest	0	-21	swapper/0	08:25:19	0
3478777	99	57	1,16	cyclictest	3519454	-21	ntpq	09:20:25	0
3478778	99	56	46,7	cyclictest	3580661	-21	dpkg	10:30:12	1
3478777	99	56	2,6	cyclictest	3486682	-21	/usr/sbin/munin	07:40:13	0
3478777	99	56	24,28	cyclictest	0	-21	swapper/0	08:45:20	0
3478777	99	56	21,5	cyclictest	256	50	irq/23-42890000.ethernet	08:05:22	0
3478777	99	56	21,33	cyclictest	256	50	irq/23-42890000.ethernet	11:10:31	0
3478778	99	55	48,5	cyclictest	3525492	-21	kworker/u4:4+events_unbound	09:40:01	1
3478778	99	55	46,7	cyclictest	3525489	-21	kworker/u4:1+events_unbound	09:30:26	1
3478778	99	55	34,8	cyclictest	3618388	-21	kworker/u4:1+events_unbound	11:15:00	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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