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 all highest latencies:

System rack7slot2.osadl.org (updated Tue Feb 17, 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
3466174	99	105	98,5	cyclictest	3584779	-21	kworker/u4:12+events_unbound	10:59:42	1
3466174	99	105	97,5	cyclictest	3563035	-21	kworker/u4:14+events_unbound	10:38:09	1
3466172	99	99	93,4	cyclictest	3622500	-21	kworker/u4:1+events_unbound	11:44:49	0
3466172	99	89	81,6	cyclictest	3638870	-21	kworker/u4:15+events_unbound	12:04:52	0
3466172	99	87	79,6	cyclictest	3626782	-21	kworker/u4:8+events_unbound	12:09:53	0
3466172	99	86	77,7	cyclictest	3576089	-21	kworker/u4:5+events_unbound	10:44:40	0
3466174	99	85	77,6	cyclictest	3486508	-21	kworker/u4:14+events_unbound	08:34:06	1
3466172	99	85	69,6	cyclictest	3622501	-21	kworker/u4:2+events_unbound	11:39:48	0
3466172	99	85	67,6	cyclictest	3476231	-21	kworker/u4:5+events_unbound	07:55:00	0
3466172	99	85	20,31	cyclictest	3466148	-21	munin-run	07:10:00	0
3466174	99	80	72,6	cyclictest	3533393	-21	kworker/u4:9+events_unbound	09:54:27	1
3466172	99	77	71,4	cyclictest	3485254	-21	kworker/u4:9+events_unbound	09:14:19	0
3466172	99	77	68,7	cyclictest	3584780	-21	kworker/u4:13+events_unbound	11:09:44	0
3466174	99	76	67,6	cyclictest	3485254	-21	kworker/u4:9+events_unbound	09:14:17	1
3466172	99	76	69,5	cyclictest	3626783	-21	kworker/u4:9+events_unbound	12:25:01	0
3466172	99	76	69,5	cyclictest	3626783	-21	kworker/u4:9+events_unbound	12:25:00	0
3466172	99	74	59,9	cyclictest	3552460	-21	/usr/sbin/munin	10:15:11	0
3466174	99	69	62,5	cyclictest	3494158	-21	kworker/u4:11+events_unbound	09:34:21	1
3466174	99	69	60,7	cyclictest	3486508	-21	kworker/u4:14+events_unbound	08:49:12	1
3466174	99	69	53,6	cyclictest	3542047	-21	kworker/u4:1+events_unbound	10:14:34	1
3466172	99	69	47,17	cyclictest	54	-21	kswapd0	10:55:10	0
3466172	99	67	60,5	cyclictest	3576087	-21	kworker/u4:3+events_unbound	10:49:40	0
3466172	99	67	60,5	cyclictest	3576087	-21	kworker/u4:3+events_unbound	10:49:40	0
3466174	99	65	57,6	cyclictest	3537715	-21	kworker/u4:3+events_unbound	09:59:31	1
3466174	99	64	56,6	cyclictest	3489105	-21	kworker/u4:0+events_unbound	09:04:15	1
3466174	99	64	55,6	cyclictest	3670800	-21	fschecks_time	12:35:17	1
3466172	99	64	56,6	cyclictest	3626782	-21	kworker/u4:8+events_unbound	12:34:57	0
3466172	99	64	51,5	cyclictest	3584778	-21	kworker/u4:2+events_unbound	10:54:41	0
3466174	99	63	54,7	cyclictest	3485254	-21	kworker/u4:9+events_unbound	08:39:10	1
3466172	99	63	56,5	cyclictest	3550624	-21	kworker/u4:0+events_unbound	10:20:04	0
3466172	99	62	54,6	cyclictest	3605517	-21	kworker/u4:1+events_unbound	11:24:45	0
3466172	99	62	54,6	cyclictest	3529073	-21	kworker/u4:3+events_unbound	09:49:27	0
3466174	99	61	42,6	cyclictest	3508161	-21	kworker/u4:15+events_unbound	09:29:21	1
3466172	99	61	54,5	cyclictest	3474975	-21	kworker/u4:3+events_unbound	08:30:02	0
3466172	99	61	52,6	cyclictest	15	1	ktimers/0	12:11:59	0
3466172	99	60	52,6	cyclictest	3473692	-21	kworker/u4:10+events_unbound	08:54:12	0
3466174	99	59	52,5	cyclictest	3494159	-21	kworker/u4:12+events_unbound	09:09:18	1
3466172	99	58	51,5	cyclictest	3533394	-21	kworker/u4:10+events_unbound	09:57:59	0
3466172	99	58	50,6	cyclictest	3550624	-21	kworker/u4:0+events_unbound	10:39:38	0
3466172	99	58	49,6	cyclictest	0	-21	swapper/0	11:00:15	0
3466174	99	57	45,7	cyclictest	0	-21	swapper/1	10:00:17	1
3466172	99	57	49,6	cyclictest	3660141	-21	kworker/u4:1+events_unbound	12:39:58	0
3466172	99	57	45,10	cyclictest	3505381	-21	cron	09:20:00	0
3466172	99	56	48,6	cyclictest	3514587	-21	/usr/sbin/munin	09:30:18	0
3466172	99	56	45,8	cyclictest	3466171	-21	cyclictest	09:43:52	0
3466174	99	55	47,6	cyclictest	3467380	-21	kworker/u4:3+events_unbound	07:33:58	1
3466174	99	55	46,7	cyclictest	3463695	-21	kworker/u4:4+events_unbound	07:28:57	1
3466174	99	55	46,7	cyclictest	3463695	-21	kworker/u4:4+events_unbound	07:28:57	1
3466174	99	54	46,6	cyclictest	3622504	-21	kworker/u4:5+events_unbound	11:54:52	1
3466174	99	54	46,6	cyclictest	3563036	-21	kworker/u4:15+events_unbound	10:30:00	1
3466174	99	54	41,5	cyclictest	3626782	-21	kworker/u4:8+events_unbound	12:19:56	1
3466172	99	54	47,5	cyclictest	3626782	-21	kworker/u4:8+events_unbound	12:19:53	0
3466172	99	54	46,6	cyclictest	3565586	-21	/usr/sbin/munin	10:30:18	0
3466174	99	53	44,5	cyclictest	3623046	-21	sshd	11:38:09	1
3466172	99	53	40,10	cyclictest	3496734	-21	diskmemload	10:00:19	0
3466172	99	53	33,17	cyclictest	3616596	-21	gltestperf	11:30:21	0
3466174	99	52	44,5	cyclictest	3478830	-21	kworker/u4:17+events_unbound	09:40:18	1
3466174	99	52	43,5	cyclictest	3502312	-21	/usr/sbin/munin	09:15:37	1
3466174	99	52	41,8	cyclictest	3642337	-21	unixbench-2d	12:00:39	1
3466174	99	51	44,5	cyclictest	3658003	-21	aten_r7power_en	12:20:15	1
3466174	99	51	44,5	cyclictest	3658003	-21	aten_r7power_en	12:20:15	1
3466172	99	51	44,5	cyclictest	3549388	-21	unixbench-2d	10:10:38	0
3466172	99	51	43,5	cyclictest	3631015	-21	kworker/u4:11+events_unbound	11:55:02	0
3466174	99	50	43,5	cyclictest	3586399	-21	idleruntime-cro	10:55:00	1
3466174	99	50	43,5	cyclictest	3574369	-21	gltestperf	10:40:20	1
3466174	99	50	42,5	cyclictest	3466669	-21	fschecks_time	07:10:18	1
3466172	99	50	42,6	cyclictest	3603954	-21	gltestperf	11:15:21	0
3466172	99	50	37,8	cyclictest	3489129	-21	kworker/u4:9	08:40:00	0
3466174	99	49	42,5	cyclictest	3578258	-21	aten_r7power_en	10:45:15	1
3466174	99	49	42,5	cyclictest	3578258	-21	aten_r7power_en	10:45:15	1
3466174	99	49	42,5	cyclictest	3518866	-21	fschecks_count	09:35:19	1
3466174	99	49	39,8	cyclictest	3490396	-21	systemd	08:44:09	1
3466172	99	49	42,5	cyclictest	3618288	-21	kworker/u4:0+events_unbound	11:50:01	0
3466172	99	49	41,6	cyclictest	3544077	-21	aten_r7power_cu	10:05:16	0
3466172	99	49	41,5	cyclictest	3494242	-21	latency_hist	09:00:00	0
3466172	99	49	38,8	cyclictest	3469877	-21	unixbench_singl	07:20:37	0
3466174	99	48	42,4	cyclictest	3527795	-21	ntp_offset	09:45:29	1
3466174	99	48	41,5	cyclictest	3608531	-21	ntpq	11:20:34	1
3466174	99	48	39,6	cyclictest	0	-21	swapper/1	12:05:34	1
3466174	99	48	37,8	cyclictest	3607407	-21	sendmail	11:20:00	1
3466174	99	48	35,9	cyclictest	0	-21	swapper/1	11:10:39	1
3466172	99	48	40,6	cyclictest	3479973	-21	/usr/sbin/munin	08:00:36	0
3466172	99	48	39,6	cyclictest	3472994	-21	gltestperf	07:35:18	0
3466172	99	48	38,8	cyclictest	3637469	-21	if_eth0	11:55:21	0
3466174	99	47	41,4	cyclictest	3569028	-21	systemd	10:34:37	1
3466174	99	47	41,4	cyclictest	3533394	-21	kworker/u4:10+xprtiod	10:15:06	1
3466174	99	47	41,4	cyclictest	0	-21	swapper/1	08:15:37	1
3466174	99	47	40,5	cyclictest	3649905	-21	basename	12:10:20	1
3466174	99	47	40,5	cyclictest	3637335	-21	fschecks_time	11:55:19	1
3466174	99	47	40,5	cyclictest	3628964	-21	fschecks_count	11:45:22	1
3466174	99	47	40,5	cyclictest	3467612	-21	aten2__	07:15:16	1
3466174	99	47	37,8	cyclictest	3470008	-21	latency_hist	07:25:01	1
3466174	99	47	37,7	cyclictest	3475546	-21	gltestperf	07:45:19	1
3466172	99	47	40,5	cyclictest	3511237	-21	/usr/sbin/munin	09:25:44	0
3466172	99	47	40,5	cyclictest	3484023	-21	idleruntime-cro	08:20:01	0
3466172	99	47	39,6	cyclictest	3453815	-21	kworker/u4:9+events_unbound	07:31:00	0
3466172	99	47	39,5	cyclictest	0	-21	swapper/0	09:20:26	0
3466172	99	47	37,8	cyclictest	3467387	-21	systemd	07:13:54	0
3466172	99	47	27,18	cyclictest	0	-21	swapper/0	11:25:38	0
3466172	99	47	26,6	cyclictest	3518847	-21	fschecks_count	09:35:19	0
3466174	99	46	38,5	cyclictest	3614039	-21	kworker/u4:13-rpciod	11:30:26	1
3466174	99	46	38,5	cyclictest	0	-21	swapper/1	10:20:28	1
3466174	99	46	37,7	cyclictest	3628401	-21	latency_hist	11:45:01	1
3466174	99	46	35,7	cyclictest	0	-21	swapper/1	11:00:24	1
3466172	99	46	36,8	cyclictest	3489678	-21	fschecks_time	08:40:19	0
3466174	99	45	38,5	cyclictest	3595154	-21	/usr/sbin/munin	11:05:16	1
3466174	99	45	38,5	cyclictest	3479349	-21	fschecks_time	08:00:19	1
3466174	99	45	37,5	cyclictest	3482786	-21	cut	08:15:01	1
3466174	99	45	36,6	cyclictest	0	-21	swapper/1	12:30:35	1
3466174	99	45	35,7	cyclictest	3662729	-21	netstat	12:25:26	1
3466174	99	45	35,7	cyclictest	3485800	-21	fschecks_time	08:25:20	1
3466174	99	45	35,7	cyclictest	3484570	-21	gltestperf	08:20:23	1
3466174	99	44	37,5	cyclictest	3505974	-21	rm	09:20:17	1
3466172	99	44	7,33	cyclictest	0	-21	swapper/0	10:25:36	0
3466172	99	44	37,5	cyclictest	3599810	-21	expr	11:10:21	0
3466172	99	44	35,7	cyclictest	3494709	-21	fschecks_time	09:00:20	0
3466172	99	44	34,7	cyclictest	0	-21	swapper/0	12:25:34	0
3466172	99	44	33,8	cyclictest	3490948	-21	gltestperf	08:45:21	0
3466172	99	44	24,17	cyclictest	0	-21	swapper/0	08:30:24	0
3466174	99	43	33,7	cyclictest	0	-21	swapper/1	08:50:18	1
3466174	99	43	32,8	cyclictest	0	-21	swapper/1	10:05:25	1
3466174	99	43	26,12	cyclictest	0	-21	swapper/1	11:25:26	1
3466172	99	43	37,4	cyclictest	3481629	-21	aten_r7power_en	08:10:17	0
3466172	99	43	36,5	cyclictest	3495933	-21	fschecks_time	09:05:19	0
3466172	99	43	35,6	cyclictest	3474975	-21	kworker/u4:3+events_unbound	07:44:00	0
3466172	99	43	35,5	cyclictest	0	-21	swapper/0	09:50:18	0
3466174	99	42	33,7	cyclictest	3474056	-21	aten_r7power_vo	07:40:18	1
3466174	99	42	30,7	cyclictest	3472436	-21	kworker/u4:2-rpciod	07:50:22	1
3466172	99	42	34,6	cyclictest	3475570	-21	gltestperf	07:45:21	0
3466172	99	42	34,5	cyclictest	3480605	-21	fschecks_time	08:05:20	0
3466172	99	42	34,5	cyclictest	3480605	-21	fschecks_time	08:05:20	0
3466172	99	42	25,12	cyclictest	3478568	-21	ls	07:55:35	0
3466174	99	41	33,6	cyclictest	3494157	-21	kworker/u4:4+rpciod	08:57:10	1
3466174	99	41	33,5	cyclictest	3477803	-21	wget	07:55:15	1
3466174	99	41	33,5	cyclictest	3456326	-21	kworker/u4:15-rpciod	07:40:01	1
3466172	99	41	32,7	cyclictest	3470418	-21	fschecks_time	07:25:20	0
3466172	99	41	32,7	cyclictest	3470418	-21	fschecks_time	07:25:20	0
3466172	99	41	28,10	cyclictest	3468393	-21	ls	07:15:35	0
3466174	99	40	31,7	cyclictest	3480664	-21	gltestperf	08:05:22	1
3466174	99	40	31,7	cyclictest	3480664	-21	gltestperf	08:05:21	1
3466172	99	38	29,6	cyclictest	3484522	-21	fschecks_time	08:20:22	0
3466174	99	35	26,7	cyclictest	0	-21	swapper/1	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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