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 highest latencies:

System rack7slot2.osadl.org (updated Sat Apr 04, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3915230	99	107	99,6	cyclictest	4056684	-21	kworker/u4:1+events_unbound	23:53:00	1
3915230	99	101	85,5	cyclictest	4074121	-21	kworker/u4:2+events_unbound	23:41:58	1
3915230	99	99	89,7	cyclictest	3948657	-21	kworker/u4:9+events_unbound	21:26:24	1
3915227	99	97	84,6	cyclictest	3996617	-21	kworker/u4:4+events_unbound	22:16:33	0
3915227	99	97	84,6	cyclictest	3996617	-21	kworker/u4:4+events_unbound	22:16:32	0
3915230	99	93	85,5	cyclictest	3992195	-21	kworker/u4:15+events_unbound	22:06:33	1
3915230	99	91	84,5	cyclictest	3974566	-21	kworker/u4:1+events_unbound	21:51:30	1
3915230	99	87	80,5	cyclictest	4056684	-21	kworker/u4:1+events_unbound	23:46:53	1
3915230	99	87	80,5	cyclictest	4056684	-21	kworker/u4:1+events_unbound	23:46:52	1
3915230	99	87	80,5	cyclictest	4000384	-21	kworker/u4:12+events_unbound	22:26:35	1
3915230	99	86	78,5	cyclictest	3961307	-21	kworker/u4:2+events_unbound	21:46:30	1
3915230	99	85	77,6	cyclictest	4108329	-21	kworker/u4:12+events_unbound	00:18:23	1
3915230	99	84	76,4	cyclictest	3961307	-21	kworker/u4:2+events_unbound	21:41:29	1
3915227	99	83	76,5	cyclictest	3991558	-21	kworker/u4:13+events_unbound	22:01:32	0
3915230	99	80	65,6	cyclictest	3927960	-21	kworker/u4:10+events_unbound	20:41:16	1
3915230	99	78	70,6	cyclictest	4108329	-21	kworker/u4:12+events_unbound	00:28:26	1
3915227	99	77	69,6	cyclictest	3974568	-21	kworker/u4:5+events_unbound	22:36:38	0
3915230	99	76	66,7	cyclictest	4009201	-21	kworker/u4:3+events_unbound	22:25:00	1
3915230	99	72	65,5	cyclictest	4047952	-21	kworker/u4:7+events_unbound	23:16:52	1
3915230	99	72	64,6	cyclictest	4099627	-21	kworker/u4:5+events_unbound	00:08:15	1
3915230	99	71	63,5	cyclictest	3925418	-21	kworker/u4:4+events_unbound	19:51:07	1
3915230	99	69	59,8	cyclictest	3920309	-21	kworker/u4:17+events_unbound	20:25:01	1
3915230	99	67	59,6	cyclictest	4095270	-21	kworker/u4:8+events_unbound	00:03:13	1
3915230	99	66	59,5	cyclictest	3919040	-21	kworker/u4:16+events_unbound	19:25:02	1
3915230	99	66	49,9	cyclictest	3945987	-21	modprobe	21:10:01	1
3915230	99	66	47,15	cyclictest	0	-21	swapper/1	23:55:14	1
3915230	99	65	57,6	cyclictest	4125610	-21	kworker/u4:6+events_unbound	00:38:33	1
3915230	99	64	58,5	cyclictest	4052285	-21	kworker/u4:14+events_unbound	23:26:54	1
3915230	99	64	49,5	cyclictest	4026851	-21	kworker/u4:2+events_unbound	22:56:47	1
3915227	99	64	57,5	cyclictest	4056684	-21	kworker/u4:1+events_unbound	23:54:59	0
3915227	99	64	56,6	cyclictest	4052285	-21	kworker/u4:14+events_unbound	23:21:53	0
3915230	99	62	55,5	cyclictest	3920309	-21	kworker/u4:17+events_unbound	20:05:01	1
3915230	99	62	48,11	cyclictest	4056683	-21	kworker/u4:0+events_unbound	23:20:13	1
3915227	99	62	53,7	cyclictest	4065416	-21	kworker/u4:7+events_unbound	23:36:56	0
3915230	99	61	54,5	cyclictest	4103954	-21	kworker/u4:1+events_unbound	00:15:00	1
3915230	99	60	54,4	cyclictest	4103956	-21	kworker/u4:8+events_unbound	00:33:28	1
3915227	99	60	41,16	cyclictest	0	-21	swapper/0	19:56:06	0
3915230	99	59	44,11	cyclictest	53	-21	kswapd0	22:40:07	1
3915230	99	58	51,5	cyclictest	4022431	-21	kworker/u4:1+events_unbound	22:46:41	1
3915230	99	58	50,5	cyclictest	3934377	-21	kworker/u4:1+events_unbound	20:36:16	1
3915230	99	58	48,7	cyclictest	4065415	-21	kworker/u4:4+events_unbound	23:30:16	1
3915230	99	57	50,5	cyclictest	3916449	-21	kworker/u4:0+events_unbound	20:31:13	1
3915227	99	57	48,6	cyclictest	3948661	-21	kworker/u4:15+events_unbound	21:16:23	0
3915227	99	56	49,5	cyclictest	3915225	-21	cyclictest	22:31:35	0
3915227	99	56	47,6	cyclictest	3915225	-21	cyclictest	00:22:13	0
3915227	99	56	46,8	cyclictest	53	-21	kswapd0	22:40:12	0
3915230	99	55	43,7	cyclictest	53	-21	kswapd0	21:40:01	1
3915230	99	54	46,6	cyclictest	4103956	-21	kworker/u4:8+events_unbound	00:21:00	1
3915230	99	54	46,6	cyclictest	3917738	-21	kworker/u4:11+events_unbound	19:31:04	1
3915230	99	54	36,9	cyclictest	0	-21	swapper/1	22:35:36	1
3915227	99	54	46,6	cyclictest	3929257	-21	kworker/u4:13+events_unbound	21:01:19	0
3915227	99	54	42,8	cyclictest	4007969	-21	sh	22:20:34	0
3915227	99	54	42,3	cyclictest	3974568	-21	kworker/u4:5+events_unbound	22:57:16	0
3915227	99	54	35,5	cyclictest	4011781	-21	fschecks_count	22:25:19	0
3915227	99	54	32,20	cyclictest	3932256	-21	fschecks_count	20:15:19	0
3915230	99	53	39,10	cyclictest	0	-21	swapper/1	23:35:13	1
3915227	99	53	30,9	cyclictest	3956234	-21	unixbench-2d	21:20:39	0
3915230	99	52	44,6	cyclictest	4000383	-21	kworker/u4:10+events_unbound	22:13:58	1
3915230	99	52	42,7	cyclictest	3928023	-21	lockfile-create	19:59:59	1
3915230	99	52	41,6	cyclictest	3986135	-21	ssh	21:55:27	1
3915227	99	52	44,5	cyclictest	4093296	-21	/usr/sbin/munin	00:00:16	0
3915227	99	52	43,5	cyclictest	0	-21	swapper/0	21:55:12	0
3915227	99	52	33,17	cyclictest	4022433	-21	kworker/u4:8+rpciod	23:00:22	0
3915227	99	51	45,4	cyclictest	4056687	-21	kworker/u4:5+events_unbound	23:31:56	0
3915227	99	51	44,5	cyclictest	3977245	-21	gltestperf	21:45:21	0
3915227	99	51	43,6	cyclictest	3934377	-21	kworker/u4:1+events_unbound	20:40:01	0
3915227	99	51	43,6	cyclictest	3929256	-21	kworker/u4:12+events_unbound	20:11:12	0
3915227	99	51	43,5	cyclictest	3973444	-21	mailstats	21:40:37	0
3915227	99	51	42,6	cyclictest	3913956	-21	kworker/u4:5+events_unbound	19:41:06	0
3915227	99	51	30,18	cyclictest	0	-21	swapper/0	20:30:00	0
3915230	99	50	42,6	cyclictest	3919039	-21	kworker/u4:15+events_unbound	19:25:21	1
3915230	99	50	2,42	cyclictest	4016654	-21	ssh	22:30:34	1
3915227	99	50	44,4	cyclictest	4106686	-21	nfs4_client	00:15:24	0
3915230	99	49	43,4	cyclictest	3948654	-21	kworker/u4:4+events_unbound	21:18:42	1
3915230	99	49	42,5	cyclictest	4044240	-21	kworker/u4:3+events_unbound	23:03:59	1
3915230	99	49	38,8	cyclictest	3955585	-21	uname	21:20:22	1
3915230	99	49	36,9	cyclictest	0	-21	swapper/1	21:10:34	1
3915230	99	49	36,9	cyclictest	0	-21	swapper/1	21:10:33	1
3915227	99	49	42,5	cyclictest	4063393	-21	/usr/sbin/munin	23:25:17	0
3915227	99	49	42,5	cyclictest	3999127	-21	/usr/sbin/munin	22:10:26	0
3915227	99	49	42,5	cyclictest	3947139	-21	ntp_states	21:10:35	0
3915227	99	49	42,5	cyclictest	3947139	-21	ntp_states	21:10:34	0
3915227	99	49	41,6	cyclictest	4047952	-21	kworker/u4:7+events_unbound	23:12:42	0
3915227	99	49	41,6	cyclictest	3981240	-21	aten_r7power_vo	21:50:15	0
3915227	99	49	40,7	cyclictest	4080759	-21	gltestperf	23:45:21	0
3915227	99	49	40,7	cyclictest	4080759	-21	gltestperf	23:45:20	0
3915227	99	49	40,6	cyclictest	3972160	-21	latency_hist	21:40:01	0
3915227	99	49	32,15	cyclictest	3936947	-21	apt-get	20:35:01	0
3915227	99	49	29,18	cyclictest	3948657	-21	kworker/u4:9-rpciod	21:25:31	0
3915230	99	48	39,6	cyclictest	0	-21	swapper/1	23:10:25	1
3915227	99	48	38,7	cyclictest	4034404	-21	/usr/sbin/munin	22:50:39	0
3915230	99	47	4,30	cyclictest	3990631	-21	ssh	22:00:34	1
3915230	99	47	39,6	cyclictest	4006798	-21	latency_hist	22:20:00	1
3915230	99	47	39,6	cyclictest	4006798	-21	latency_hist	22:19:59	1
3915230	99	47	39,5	cyclictest	4035059	-21	ssh	22:51:43	1
3915230	99	47	38,7	cyclictest	3941173	-21	aten_r7power_vo	20:50:16	1
3915230	99	47	36,6	cyclictest	3945988	-21	diskmemload	21:30:31	1
3915230	99	47	30,9	cyclictest	0	-21	swapper/1	20:05:31	1
3915227	99	47	40,5	cyclictest	3916455	-21	kworker/u4:2+events_unbound	20:01:12	0
3915227	99	47	36,9	cyclictest	3994260	-21	aten_r7power_vo	22:05:16	0
3915227	99	47	28,16	cyclictest	0	-21	swapper/0	00:30:33	0
3915230	99	46	39,5	cyclictest	3916116	-21	sendmail_mailqu	19:10:36	1
3915230	99	46	35,8	cyclictest	3922877	-21	sh	19:40:01	1
3915230	99	46	35,7	cyclictest	0	-21	swapper/1	23:05:40	1
3915227	99	46	38,6	cyclictest	3913959	-21	kworker/u4:8+events_unbound	19:46:07	0
3915227	99	46	38,6	cyclictest	378	-21	dbus-daemon	23:41:57	0
3915230	99	45	37,5	cyclictest	3939573	-21	kworker/u4:4-rpciod	20:55:16	1
3915230	99	45	29,6	cyclictest	3916458	-21	kworker/u4:10+events_unbound	19:15:30	1
3915227	99	45	35,6	cyclictest	3940009	-21	fschecks_count	20:45:18	0
3915230	99	44	21,8	cyclictest	3939573	-21	kworker/u4:4+events_unbound	20:45:29	1
3915227	99	44	38,4	cyclictest	4092916	-21	sendmail-msp	00:00:01	0
3915227	99	44	37,5	cyclictest	4123202	-21	aten_r7power_en	00:35:16	0
3915227	99	44	37,5	cyclictest	4095269	-21	kworker/u4:7+events_unbound	00:05:19	0
3915227	99	44	37,5	cyclictest	3967890	-21	latency_hist	21:35:02	0
3915227	99	44	35,6	cyclictest	3916921	-21	fschecks_count	19:15:19	0
3915227	99	44	34,7	cyclictest	4054715	-21	df_abs	23:15:16	0
3915227	99	44	33,9	cyclictest	4114900	-21	cpu	00:25:22	0
3915227	99	44	26,16	cyclictest	4029110	-21	fschecks_count	22:45:18	0
3915230	99	43	37,4	cyclictest	3931815	-21	kworker/u4:10	20:14:59	1
3915227	99	43	35,5	cyclictest	3927960	-21	kworker/u4:10+rpciod	20:40:14	0
3915227	99	43	34,7	cyclictest	3945115	-21	fschecks_count	21:05:19	0
3915227	99	43	34,7	cyclictest	3942634	-21	fschecks_time	20:55:17	0
3915230	99	42	27,11	cyclictest	0	-21	swapper/1	20:25:16	1
3915227	99	42	32,7	cyclictest	3919322	-21	aten_r7power_po	19:25:14	0
3915230	99	41	31,7	cyclictest	3933088	-21	cron	20:20:00	1
3915227	99	41	34,5	cyclictest	3922886	-21	munin-plugin-st	19:40:00	0
3915227	99	41	33,5	cyclictest	3929773	-21	fschecks_time	20:05:20	0
3915227	99	41	32,7	cyclictest	4045859	-21	modprobe	23:05:02	0
3915227	99	41	31,8	cyclictest	4102484	-21	ssh	00:10:27	0
3915230	99	40	30,6	cyclictest	0	-21	swapper/1	19:40:15	1
3915227	99	40	34,4	cyclictest	1062	-21	lldpd	20:21:30	0
3915227	99	40	31,6	cyclictest	3941117	-21	aten_r7power_en	20:50:16	0
3915227	99	40	31,6	cyclictest	3920548	-21	aten_r7power_cu	19:30:14	0
3915230	99	39	28,8	cyclictest	3944448	-21	threads	21:00:36	1
3915227	99	39	33,4	cyclictest	3926388	-21	cat	19:50:36	0
3915230	99	38	29,5	cyclictest	0	-21	swapper/1	19:10:01	1
3915227	99	38	30,5	cyclictest	0	-21	swapper/0	19:10:12	0
3915227	99	38	29,7	cyclictest	3917997	-21	aten_r7power_cu	19:20:16	0
3915230	99	37	24,9	cyclictest	3924385	-21	basename	19:45:15	1
3915227	99	36	3,26	cyclictest	3915225	-21	cyclictest	19:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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