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 792 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
163175	99	60	24,33	cyclictest	0	-21	swapper/1	11:15:43	1
163175	99	60	23,34	cyclictest	0	-21	swapper/1	12:30:44	1
163173	99	60	53,4	cyclictest	0	-21	swapper/0	10:55:30	0
163175	99	59	48,8	cyclictest	177302	-21	kworker/u4:0+events_unbound	08:15:23	1
163175	99	59	31,25	cyclictest	0	-21	swapper/1	09:45:35	1
163175	99	59	27,29	cyclictest	0	-21	swapper/1	09:35:26	1
163173	99	59	52,5	cyclictest	266058	-21	sshd	10:30:52	0
163175	99	58	26,29	cyclictest	0	-21	swapper/1	08:40:30	1
163175	99	58	25,29	cyclictest	0	-21	swapper/1	08:30:01	1
163175	99	58	22,33	cyclictest	165443	-21	threads	07:15:36	1
163173	99	58	51,5	cyclictest	252474	-21	timerandwakeup	10:15:38	0
163173	99	58	50,6	cyclictest	293257	-21	kworker/u4:7+events_unbound	11:10:00	0
163173	99	58	49,7	cyclictest	192653	-21	kworker/u4:11+events_unbound	09:10:01	0
163173	99	58	49,6	cyclictest	164400	-21	kworker/u4:5+events_unbound	07:20:04	0
163175	99	57	27,27	cyclictest	0	-21	swapper/1	08:10:16	1
163173	99	57	48,6	cyclictest	166987	-21	kworker/u4:4+events_unbound	07:30:08	0
163173	99	57	44,10	cyclictest	0	-21	swapper/0	09:30:31	0
163173	99	57	31,18	cyclictest	226194	-21	ls	09:45:39	0
163175	99	56	22,31	cyclictest	167299	-21	aten_r7power_po	07:25:15	1
163175	99	56	18,4	cyclictest	0	-21	swapper/1	09:40:19	1
163175	99	55	40,11	cyclictest	53	-21	kswapd0	12:05:20	1
163175	99	55	26,26	cyclictest	0	-21	swapper/1	09:20:31	1
163175	99	55	20,8	cyclictest	0	-21	swapper/1	08:00:39	1
163173	99	55	46,6	cyclictest	1066	-21	snmpd	07:50:10	0
163175	99	54	24,27	cyclictest	0	-21	swapper/1	07:40:37	1
163175	99	54	23,28	cyclictest	0	-21	swapper/1	10:10:29	1
163175	99	54	23,28	cyclictest	0	-21	swapper/1	10:10:29	1
163175	99	54	19,3	cyclictest	0	-21	swapper/1	07:45:34	1
163173	99	54	44,7	cyclictest	273635	-21	df_abs	10:40:17	0
163173	99	54	44,6	cyclictest	310452	-21	kworker/u4:15-rpciod	11:25:20	0
163175	99	53	47,4	cyclictest	190957	-21	sshd	08:55:36	1
163175	99	53	24,26	cyclictest	0	-21	swapper/1	08:35:36	1
163175	99	53	24,26	cyclictest	0	-21	swapper/1	08:35:36	1
163175	99	53	19,4	cyclictest	0	-21	swapper/1	08:45:21	1
163173	99	53	4,42	cyclictest	318074	-21	ssh	11:30:35	0
163175	99	52	44,6	cyclictest	178577	-21	kworker/u4:9+events_unbound	08:20:23	1
163175	99	52	39,9	cyclictest	170806	-21	kworker/u4:14+events_unbound	07:55:15	1
163173	99	52	46,4	cyclictest	256	50	irq/23-42890000.ethernet	10:10:40	0
163173	99	52	46,4	cyclictest	256	50	irq/23-42890000.ethernet	10:10:39	0
163173	99	52	44,5	cyclictest	256	50	irq/23-42890000.ethernet	10:35:28	0
163173	99	52	43,6	cyclictest	356554	-21	dpkg	12:15:12	0
163173	99	52	43,6	cyclictest	166984	-21	kworker/u4:1+events_unbound	08:30:28	0
163175	99	51	21,5	cyclictest	0	-21	swapper/1	07:40:03	1
163175	99	51	19,6	cyclictest	0	-21	swapper/1	08:05:15	1
163173	99	51	43,6	cyclictest	291267	-21	/usr/sbin/munin	11:00:20	0
163173	99	51	4,12	cyclictest	230162	-21	ssh	09:50:29	0
163173	99	51	28,20	cyclictest	0	-21	swapper/0	10:25:37	0
163175	99	50	21,4	cyclictest	0	-21	swapper/1	07:10:35	1
163173	99	50	29,18	cyclictest	0	-21	swapper/0	09:40:14	0
163173	99	50	27,6	cyclictest	0	-21	swapper/0	08:20:35	0
163173	99	49	41,5	cyclictest	190084	-21	kworker/u4:7-events_unbound	09:36:58	0
163173	99	49	40,6	cyclictest	343227	-21	sendmail-msp	12:00:00	0
163173	99	49	39,7	cyclictest	376444	-21	ssh	12:37:22	0
163173	99	49	38,9	cyclictest	282602	-21	fschecks_time	10:50:21	0
163173	99	48	40,5	cyclictest	361045	-21	aten_r7power_cu	12:20:16	0
163173	99	48	39,7	cyclictest	238482	-21	df_abs	10:00:21	0
163173	99	48	39,6	cyclictest	177793	-21	fschecks_count	08:05:19	0
163173	99	48	38,7	cyclictest	356334	-21	latency_hist	12:15:01	0
163173	99	48	38,7	cyclictest	278862	-21	/usr/sbin/munin	10:45:39	0
163173	99	47	40,5	cyclictest	304780	-21	ntpq	11:15:27	0
163173	99	47	39,6	cyclictest	200763	-21	kworker/u4:0+events_unbound	09:25:03	0
163173	99	47	37,7	cyclictest	182943	-21	fschecks_time	08:25:19	0
163173	99	47	37,7	cyclictest	173542	-21	apt-key	07:50:02	0
163173	99	46	39,5	cyclictest	233975	-21	aten_r7power_po	09:55:17	0
163173	99	46	39,5	cyclictest	199776	-21	timerandwakeup	09:15:38	0
163173	99	46	37,7	cyclictest	186302	-21	sendmail	08:40:00	0
163173	99	46	37,7	cyclictest	186302	-21	sendmail	08:40:00	0
163173	99	46	37,5	cyclictest	256	50	irq/23-42890000.ethernet	08:00:01	0
163173	99	46	32,12	cyclictest	366590	-21	unixbench_singl	12:25:41	0
163173	99	45	38,5	cyclictest	256903	-21	xargs	10:20:38	0
163173	99	45	37,6	cyclictest	189784	-21	cat	08:50:35	0
163173	99	45	37,5	cyclictest	331583	-21	timerwakeupswit	11:45:41	0
163173	99	45	36,7	cyclictest	176305	-21	aten_r7power_en	08:00:15	0
163173	99	45	36,6	cyclictest	163568	-21	fschecks_count	07:10:18	0
163173	99	45	33,9	cyclictest	256	50	irq/23-42890000.ethernet	12:30:32	0
163173	99	44	4,11	cyclictest	163174	-21	idleruntime-cro	07:10:00	0
163173	99	44	35,6	cyclictest	165769	-21	latency_hist	07:20:01	0
163173	99	44	32,8	cyclictest	0	-21	swapper/0	08:15:36	0
163173	99	43	36,5	cyclictest	190079	-21	kworker/u4:1+events_unbound	09:00:01	0
163173	99	43	34,7	cyclictest	187766	-21	aten_r7power_cu	08:45:16	0
163173	99	42	32,7	cyclictest	171363	-21	fschecks_time	07:40:20	0
163173	99	42	31,7	cyclictest	305956	-21	kworker/u4:12-xprtiod	11:20:40	0
163173	99	42	26,13	cyclictest	187566	-21	kworker/u4:3	08:45:00	0
163173	99	41	32,6	cyclictest	169794	-21	aten_r7power_en	07:35:14	0
163175	99	39	30,7	cyclictest	168596	-21	aten_r7power_vo	07:30:16	1
163175	99	37	30,4	cyclictest	0	-21	swapper/1	07:20:22	1
163173	99	35	26,6	cyclictest	0	-21	swapper/0	08:10:22	0
163175	99	31	24,5	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