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 376 highest latencies:

System rack7slot2.osadl.org (updated Tue Jul 15, 2025 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
184680	99	139	129,6	cyclictest	326456	-21	kworker/u4:17+events_unbound	12:00:15	0
184684	99	106	92,11	cyclictest	54	-21	kswapd0	11:50:38	1
184684	99	95	86,7	cyclictest	280649	-21	kworker/u4:9+events_unbound	11:10:31	1
184684	99	94	78,6	cyclictest	244281	-21	kworker/u4:12+events_unbound	09:55:05	1
184684	99	82	75,5	cyclictest	247333	-21	kworker/u4:8+events_unbound	10:00:07	1
184684	99	81	73,6	cyclictest	217980	-21	kworker/u4:12+events_unbound	09:15:00	1
184684	99	80	71,6	cyclictest	193755	-21	kworker/u4:11+events_unbound	09:30:02	1
184680	99	78	32,15	cyclictest	213013	-21	latency_hist	09:00:00	0
184680	99	77	67,7	cyclictest	250694	-21	kworker/u4:9+events_unbound	10:10:38	0
184680	99	77	30,45	cyclictest	306974	-21	unixbench_singl	11:25:42	0
184684	99	76	58,9	cyclictest	290818	-21	kworker/u4:13+events_unbound	11:20:40	1
184684	99	75	67,6	cyclictest	172217	-21	kworker/u4:13+events_unbound	07:59:43	1
184684	99	74	65,7	cyclictest	311534	-21	kworker/u4:8+events_unbound	11:35:17	1
184684	99	73	67,4	cyclictest	307761	-21	kworker/u4:1+events_unbound	12:00:10	1
184684	99	73	64,7	cyclictest	212968	-21	kworker/u4:1+events_unbound	09:04:59	1
184680	99	72	38,6	cyclictest	226994	-21	timerwakeupswit	09:25:43	0
184680	99	72	38,5	cyclictest	242599	-21	fschecks_count	09:50:18	0
184684	99	71	63,6	cyclictest	172216	-21	kworker/u4:12+events_unbound	08:19:47	1
184684	99	70	58,9	cyclictest	191201	-21	systemd	07:34:37	1
184684	99	68	58,7	cyclictest	54	-21	kswapd0	10:25:12	1
184680	99	68	57,8	cyclictest	273864	-21	kworker/u4:1+events_unbound	10:40:00	0
184684	99	67	60,5	cyclictest	187173	-21	kworker/u4:14+events_unbound	08:49:53	1
184684	99	66	58,6	cyclictest	297332	-21	kworker/u4:6+events_unbound	11:15:22	1
184684	99	66	11,51	cyclictest	336210	-21	ssh	12:05:33	1
184684	99	64	52,9	cyclictest	187193	-21	systemd	07:19:34	1
184680	99	64	45,14	cyclictest	184607	-21	kworker/u4:2+xprtiod	07:20:12	0
184684	99	63	56,5	cyclictest	284143	-21	kworker/u4:2+events_unbound	11:10:01	1
184680	99	63	56,5	cyclictest	311533	-21	kworker/u4:7+events_unbound	11:35:01	0
184680	99	63	55,6	cyclictest	54	-21	kswapd0	11:00:33	0
184684	99	62	54,6	cyclictest	284143	-21	kworker/u4:2+events_unbound	10:55:17	1
184684	99	62	53,6	cyclictest	337455	-21	kworker/u4:1+events_unbound	12:17:02	1
184684	99	62	45,7	cyclictest	217980	-21	kworker/u4:12+events_unbound	09:40:59	1
184684	99	61	54,5	cyclictest	353774	-21	kworker/u4:13+events_unbound	12:30:01	1
184684	99	61	54,5	cyclictest	182171	-21	kworker/u4:1+events_unbound	07:35:02	1
184684	99	61	49,5	cyclictest	315249	-21	kworker/u4:12+events_unbound	11:47:00	1
184684	99	61	46,8	cyclictest	256962	-21	kworker/u4:15+events_unbound	10:15:00	1
184680	99	61	39,14	cyclictest	0	-21	swapper/0	07:25:10	0
184684	99	60	52,6	cyclictest	304124	-21	kworker/u4:0+events_unbound	12:10:39	1
184684	99	60	48,9	cyclictest	0	-21	swapper/1	10:40:38	1
184684	99	59	52,5	cyclictest	269818	-21	kworker/u4:11+events_unbound	10:32:01	1
184684	99	58	41,7	cyclictest	220779	-21	kworker/u4:14+events_unbound	09:45:03	1
184684	99	57	38,6	cyclictest	349145	-21	kworker/u4:8+events_unbound	12:35:00	1
184680	99	57	44,8	cyclictest	37	-21	kcompactd0	11:21:43	0
184680	99	57	4,22	cyclictest	184657	-21	munin-run	07:10:01	0
184684	99	56	50,4	cyclictest	250696	-21	kworker/u4:12+events_unbound	10:20:01	1
184684	99	56	48,6	cyclictest	184607	-21	kworker/u4:2+events_unbound	07:20:11	1
184684	99	56	47,7	cyclictest	309555	-21	/usr/sbin/munin	11:30:17	1
184680	99	56	48,5	cyclictest	311534	-21	kworker/u4:8+events_unbound	11:40:00	0
184680	99	56	45,8	cyclictest	284142	-21	kworker/u4:1+events_unbound	11:05:35	0
184684	99	55	44,9	cyclictest	348692	-21	unixbench_singl	12:20:39	1
184684	99	55	37,5	cyclictest	311534	-21	kworker/u4:8+events_unbound	11:45:00	1
184684	99	55	37,5	cyclictest	311534	-21	kworker/u4:8+events_unbound	11:44:59	1
184684	99	55	32,16	cyclictest	252067	-21	ssh	10:05:16	1
184680	99	55	5,27	cyclictest	247655	-21	ssh	09:58:19	0
184680	99	55	43,7	cyclictest	216939	-21	switchtime	09:10:36	0
184680	99	55	2,45	cyclictest	0	-21	swapper/0	09:20:13	0
184684	99	53	42,8	cyclictest	271952	-21	sshd	10:35:16	1
184680	99	53	47,4	cyclictest	352692	-21	unixbench_singl	12:25:41	0
184684	99	52	45,5	cyclictest	229336	-21	/usr/sbin/munin	09:30:15	1
184680	99	52	44,6	cyclictest	198945	-21	kworker/u4:10+events_unbound	08:20:00	0
184680	99	52	42,7	cyclictest	196338	-21	awk	07:55:01	0
184684	99	51	43,6	cyclictest	192460	-21	kworker/u4:4+events_unbound	08:05:02	1
184684	99	51	33,6	cyclictest	247333	-21	kworker/u4:8+events_unbound	09:59:09	1
184680	99	51	9,38	cyclictest	276022	-21	ntpq	10:40:33	0
184680	99	51	43,6	cyclictest	314790	-21	kworker/u4:11+events_unbound	11:48:02	0
184684	99	50	43,5	cyclictest	4172684	-21	kworker/u4:3+events_unbound	08:40:01	1
184684	99	50	39,7	cyclictest	193783	-21	modprobe	07:45:00	1
184684	99	50	30,6	cyclictest	326454	-21	kworker/u4:15+events_unbound	11:58:26	1
184680	99	50	43,5	cyclictest	217977	-21	kworker/u4:1+events_unbound	09:18:00	0
184680	99	50	42,6	cyclictest	184607	-21	kworker/u4:2+events_unbound	07:20:00	0
184680	99	50	32,16	cyclictest	329149	-21	unixbench_singl	11:55:41	0
184684	99	49	42,5	cyclictest	250696	-21	kworker/u4:12+events_unbound	10:45:19	1
184684	99	49	41,6	cyclictest	282447	-21	fschecks_count	10:50:25	1
184684	99	49	39,7	cyclictest	288799	-21	aten_r7power_en	11:00:16	1
184680	99	49	5,28	cyclictest	252833	-21	ssh	10:05:33	0
184680	99	49	44,3	cyclictest	244279	-21	kworker/u4:7+events_unbound	10:30:17	0
184680	99	49	36,11	cyclictest	299216	-21	sh	11:15:17	0
184680	99	49	29,17	cyclictest	0	-21	swapper/0	12:20:18	0
184684	99	48	42,4	cyclictest	204058	-21	kworker/u4:9+events_unbound	08:25:01	1
184684	99	48	40,5	cyclictest	220268	-21	sed	09:15:39	1
184680	99	48	39,6	cyclictest	0	-21	swapper/0	10:45:21	0
184680	99	48	36,6	cyclictest	0	-21	swapper/0	10:26:41	0
184680	99	48	28,17	cyclictest	297333	-21	kworker/u4:14-rpciod	11:45:01	0
184680	99	48	28,17	cyclictest	297333	-21	kworker/u4:14-rpciod	11:45:01	0
184680	99	48	28,16	cyclictest	192478	-21	cron	07:40:01	0
184684	99	47	7,22	cyclictest	359436	-21	sh	12:35:13	1
184684	99	47	39,6	cyclictest	240835	-21	kworker/u4:6+events_unbound	10:24:00	1
184684	99	47	39,6	cyclictest	196335	-21	munin-plugin-st	07:55:01	1
184684	99	47	37,7	cyclictest	199081	-21	latency_hist	08:05:00	1
184680	99	47	39,6	cyclictest	324256	-21	ssh	11:50:22	0
184680	99	47	39,6	cyclictest	248844	-21	aten_r7power_cu	10:00:26	0
184680	99	47	38,6	cyclictest	232934	-21	expr	09:35:25	0
184680	99	47	38,6	cyclictest	232934	-21	expr	09:35:24	0
184680	99	47	37,8	cyclictest	339684	-21	forks	12:10:23	0
184680	99	47	37,5	cyclictest	0	-21	swapper/0	10:56:41	0
184680	99	47	36,9	cyclictest	193807	-21	idleruntime-cro	07:44:59	0
184684	99	46	40,4	cyclictest	222832	-21	df_abs	09:20:23	1
184684	99	46	39,5	cyclictest	220779	-21	kworker/u4:14+events_unbound	09:35:03	1
184684	99	46	39,5	cyclictest	220779	-21	kworker/u4:14+events_unbound	09:35:03	1
184680	99	46	38,6	cyclictest	356005	-21	kernelversion	12:30:22	0
184680	99	46	26,18	cyclictest	205796	-21	fschecks_count	08:30:20	0
184680	99	46	14,25	cyclictest	255	50	irq/23-42890000.ethernet	09:00:14	0
184680	99	45	39,4	cyclictest	259720	-21	timerandwakeup	10:15:43	0
184680	99	45	38,5	cyclictest	265114	-21	latency_hist	10:25:01	0
184680	99	45	36,7	cyclictest	238996	-21	aten_r7power_po	09:45:19	0
184680	99	45	36,7	cyclictest	0	-21	swapper/0	09:35:02	0
184680	99	45	35,8	cyclictest	198238	-21	gltestperf	08:00:22	0
184680	99	45	35,6	cyclictest	0	-21	swapper/0	09:40:39	0
184680	99	45	30,13	cyclictest	205348	-21	cron	08:30:00	0
184684	99	44	38,4	cyclictest	306380	-21	ldconfig	11:25:25	1
184684	99	44	37,5	cyclictest	184607	-21	kworker/u4:2+events_unbound	07:14:35	1
184684	99	44	35,7	cyclictest	205489	-21	latency_hist	08:30:02	1
184684	99	44	35,6	cyclictest	206440	-21	timerwakeupswit	08:30:37	1
184680	99	44	37,5	cyclictest	214876	-21	fschecks_time	09:05:21	0
184680	99	44	35,7	cyclictest	282127	-21	aten2__	10:50:17	0
184680	99	44	33,6	cyclictest	344357	-21	ssh	12:15:38	0
184680	99	44	24,18	cyclictest	0	-21	swapper/0	08:10:19	0
184680	99	43	34,7	cyclictest	199490	-21	fschecks_time	08:05:24	0
184680	99	43	34,6	cyclictest	359546	-21	aten_r7power_po	12:35:16	0
184684	99	42	32,7	cyclictest	0	-21	swapper/1	07:30:02	1
184680	99	42	35,4	cyclictest	280649	-21	kworker/u4:9-rpciod	11:10:17	0
184680	99	42	34,6	cyclictest	211741	-21	munin-plugin-st	08:55:00	0
184684	99	41	34,5	cyclictest	208355	-21	fschecks_count	08:40:20	1
184680	99	41	32,7	cyclictest	194769	-21	switchtime	07:45:39	0
184680	99	41	32,6	cyclictest	196624	-21	aten_r7power_cu	07:55:24	0
184680	99	41	32,6	cyclictest	184840	-21	aten2__	07:10:17	0
184684	99	40	32,5	cyclictest	200425	-21	aten2__	08:10:15	1
184684	99	40	31,7	cyclictest	0	-21	swapper/1	07:45:36	1
184684	99	40	30,7	cyclictest	0	-21	swapper/1	09:05:26	1
184680	99	40	31,7	cyclictest	204009	-21	sed	08:20:40	0
184680	99	39	33,4	cyclictest	1	-21	systemd	07:34:38	0
184680	99	39	32,5	cyclictest	209214	-21	idleruntime-cro	08:45:00	0
184680	99	39	32,5	cyclictest	207060	-21	fschecks_count	08:35:22	0
184680	99	39	30,6	cyclictest	0	-21	swapper/0	12:05:29	0
184684	99	38	29,6	cyclictest	0	-21	swapper/1	08:55:22	1
184680	99	38	30,5	cyclictest	0	-21	swapper/0	08:45:24	0
184684	99	35	23,9	cyclictest	0	-21	swapper/1	08:50:39	1
184684	99	27	20,4	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