OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 Sun Nov 23, 2025 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
312195	99	142	128,7	cyclictest	343175	-21	kworker/u4:12+events_unbound	09:24:53	0
312195	99	142	128,7	cyclictest	343175	-21	kworker/u4:12+events_unbound	09:24:53	0
312195	99	135	127,6	cyclictest	375899	-21	kworker/u4:4+events_unbound	09:59:59	0
312195	99	133	125,6	cyclictest	465376	-21	kworker/u4:13+events_unbound	12:25:28	0
312195	99	119	109,4	cyclictest	372196	-21	kworker/u4:3+events_unbound	09:55:01	0
312195	99	119	108,7	cyclictest	447853	-21	kworker/u4:10+events_unbound	12:00:24	0
312195	99	118	110,6	cyclictest	53	-21	kswapd0	11:40:19	0
312195	99	117	105,6	cyclictest	397322	-21	kworker/u4:2+events_unbound	10:30:07	0
312195	99	116	108,6	cyclictest	447849	-21	kworker/u4:4+events_unbound	11:50:23	0
312196	99	115	102,8	cyclictest	53	-21	kswapd0	12:00:37	1
312196	99	108	99,7	cyclictest	423149	-21	kworker/u4:9+events_unbound	11:10:15	1
312196	99	108	99,7	cyclictest	423149	-21	kworker/u4:9+events_unbound	11:10:14	1
312195	99	107	100,5	cyclictest	408542	-21	kworker/u4:7+events_unbound	10:45:10	0
312195	99	103	95,6	cyclictest	393510	-21	kworker/u4:13+events_unbound	10:25:06	0
312195	99	102	95,5	cyclictest	309653	-21	kworker/u4:7+events_unbound	07:49:38	0
312195	99	99	92,5	cyclictest	444128	-21	kworker/u4:5+events_unbound	12:05:26	0
312195	99	95	88,5	cyclictest	328980	-21	kworker/u4:1+events_unbound	08:14:40	0
312195	99	94	86,6	cyclictest	309654	-21	kworker/u4:8+events_unbound	07:34:35	0
312196	99	93	83,6	cyclictest	53	-21	kswapd0	11:50:36	1
312195	99	92	84,6	cyclictest	340590	-21	kworker/u4:4+events_unbound	08:59:49	0
312195	99	91	84,5	cyclictest	93779	-21	kworker/u4:2+events_unbound	07:24:35	0
312196	99	89	80,7	cyclictest	53	-21	kswapd0	11:40:35	1
312195	99	88	80,6	cyclictest	323817	-21	kworker/u4:3+events_unbound	08:04:40	0
312195	99	86	66,7	cyclictest	326409	-21	kworker/u4:11+events_unbound	10:00:04	0
312195	99	86	66,7	cyclictest	326409	-21	kworker/u4:11+events_unbound	10:00:03	0
312196	99	85	73,9	cyclictest	339302	-21	kworker/u4:8+events_unbound	09:09:52	1
312196	99	85	73,9	cyclictest	339302	-21	kworker/u4:8+events_unbound	09:09:51	1
312195	99	81	74,5	cyclictest	335426	-21	kworker/u4:5+events_unbound	09:14:53	0
312195	99	81	73,6	cyclictest	314695	-21	kworker/u4:13+events_unbound	07:19:33	0
312196	99	80	69,7	cyclictest	53	-21	kswapd0	11:15:13	1
312195	99	80	72,6	cyclictest	415864	-21	kworker/u4:5+events_unbound	11:00:01	0
312196	99	79	71,5	cyclictest	314694	-21	kworker/u4:12+events_unbound	07:59:39	1
312196	99	79	64,11	cyclictest	415864	-21	kworker/u4:5+events_unbound	11:00:14	1
312195	99	77	70,5	cyclictest	339302	-21	kworker/u4:8+events_unbound	09:09:54	0
312195	99	77	70,5	cyclictest	339302	-21	kworker/u4:8+events_unbound	09:09:53	0
312196	99	76	65,8	cyclictest	444130	-21	kworker/u4:8+events_unbound	11:35:20	1
312195	99	73	69,3	cyclictest	326409	-21	kworker/u4:11+events_unbound	08:19:42	0
312195	99	73	66,5	cyclictest	332860	-21	kworker/u4:8+events_unbound	08:29:45	0
312195	99	73	66,5	cyclictest	332860	-21	kworker/u4:8+events_unbound	08:29:44	0
312195	99	73	66,5	cyclictest	314694	-21	kworker/u4:12+events_unbound	07:29:34	0
312196	99	71	64,5	cyclictest	462485	-21	kworker/u4:8+events_unbound	12:15:26	1
312196	99	71	58,10	cyclictest	451683	-21	kworker/u4:6+events_unbound	11:55:37	1
312195	99	71	64,5	cyclictest	469708	-21	kworker/u4:16+events_unbound	12:40:01	0
312195	99	71	63,6	cyclictest	415863	-21	kworker/u4:3+events_unbound	10:55:00	0
312195	99	71	63,6	cyclictest	408542	-21	kworker/u4:7+events_unbound	11:30:02	0
312195	99	71	63,6	cyclictest	323816	-21	kworker/u4:0+events_unbound	08:09:40	0
312196	99	69	60,5	cyclictest	377152	-21	idleruntime-cro	10:00:01	1
312196	99	67	43,20	cyclictest	0	-21	swapper/1	09:15:24	1
312195	99	66	53,5	cyclictest	430117	-21	kworker/u4:13+events_unbound	11:15:01	0
312195	99	66	53,5	cyclictest	430117	-21	kworker/u4:13+events_unbound	11:15:00	0
312195	99	66	50,5	cyclictest	462485	-21	kworker/u4:8+events_unbound	12:15:00	0
312195	99	65	58,5	cyclictest	314694	-21	kworker/u4:12+events_unbound	07:39:38	0
312196	99	64	48,12	cyclictest	369869	-21	modprobe	09:50:01	1
312195	99	63	46,7	cyclictest	375899	-21	kworker/u4:4+events_unbound	10:11:37	0
312196	99	61	53,5	cyclictest	465375	-21	kworker/u4:11+events_unbound	12:10:39	1
312195	99	61	43,6	cyclictest	447853	-21	kworker/u4:10+events_unbound	11:59:37	0
312196	99	60	48,8	cyclictest	392613	-21	/usr/sbin/munin	10:20:40	1
312195	99	60	53,5	cyclictest	426548	-21	kworker/u4:0+events_unbound	11:10:00	0
312195	99	59	51,6	cyclictest	338022	-21	kworker/u4:4+events_unbound	08:49:45	0
312195	99	59	50,7	cyclictest	379	-21	dbus-daemon	12:30:40	0
312195	99	58	35,11	cyclictest	379484	-21	kworker/u4:10+events_unbound	10:21:16	0
312196	99	57	51,4	cyclictest	53	-21	kswapd0	11:30:32	1
312196	99	57	41,10	cyclictest	327209	-21	ntpq	08:05:27	1
312195	99	57	50,5	cyclictest	339302	-21	kworker/u4:8+events_unbound	08:55:01	0
312195	99	57	50,5	cyclictest	339302	-21	kworker/u4:8+events_unbound	08:55:00	0
312195	99	57	41,5	cyclictest	309653	-21	kworker/u4:7+events_unbound	07:55:01	0
312195	99	56	43,5	cyclictest	469170	-21	kworker/u4:14+events_unbound	12:20:02	0
312196	99	55	48,4	cyclictest	318583	-21	kworker/u4:2+events_unbound	07:34:36	1
312196	99	55	45,6	cyclictest	426549	-21	kworker/u4:1-nfsiod	11:20:30	1
312196	99	55	42,9	cyclictest	335304	-21	sed	08:35:37	1
312195	99	55	48,5	cyclictest	313413	-21	kworker/u4:11+events_unbound	07:14:31	0
312195	99	55	48,5	cyclictest	15	1	ktimers/0	11:21:46	0
312196	99	54	45,7	cyclictest	398	-21	systemd-logind	09:44:57	1
312195	99	54	46,6	cyclictest	404707	-21	kworker/u4:1+events_unbound	10:40:04	0
312195	99	54	41,7	cyclictest	447853	-21	kworker/u4:10+events_unbound	11:49:26	0
312196	99	53	6,38	cyclictest	491324	-21	sh	12:35:26	1
312196	99	52	39,8	cyclictest	0	-21	swapper/1	10:35:36	1
312196	99	52	19,10	cyclictest	0	-21	swapper/1	10:50:02	1
312195	99	52	42,8	cyclictest	365508	-21	kworker/u4:21+events_unbound	09:45:36	0
312195	99	52	38,6	cyclictest	338024	-21	kworker/u4:7+events_unbound	09:38:39	0
312196	99	51	43,6	cyclictest	465376	-21	kworker/u4:13+events_unbound	12:25:40	1
312196	99	51	41,6	cyclictest	480928	-21	ssh	12:22:01	1
312196	99	51	39,4	cyclictest	379484	-21	kworker/u4:10-rpciod	10:10:03	1
312196	99	51	39,4	cyclictest	379484	-21	kworker/u4:10-rpciod	10:10:03	1
312195	99	51	33,6	cyclictest	422659	-21	kworker/u4:8+events_unbound	11:01:40	0
312195	99	51	19,25	cyclictest	257	50	irq/23-42890000.ethernet	09:15:21	0
312195	99	51	14,25	cyclictest	0	-21	swapper/0	07:10:01	0
312196	99	50	40,6	cyclictest	326320	-21	unixbench_multi	08:00:38	1
312196	99	50	37,9	cyclictest	384070	-21	apt-get	10:10:07	1
312196	99	50	18,4	cyclictest	331788	-21	apt-get	08:25:13	1
312196	99	50	18,4	cyclictest	331788	-21	apt-get	08:25:13	1
312195	99	50	44,3	cyclictest	0	-21	swapper/0	11:15:36	0
312195	99	50	43,5	cyclictest	340590	-21	kworker/u4:4+events_unbound	09:03:37	0
312195	99	50	42,5	cyclictest	0	-21	swapper/0	12:15:41	0
312195	99	50	32,15	cyclictest	343175	-21	kworker/u4:12-rpciod	09:25:38	0
312195	99	50	27,17	cyclictest	422659	-21	kworker/u4:8+events_unbound	11:25:24	0
312196	99	49	39,7	cyclictest	53	-21	kswapd0	11:45:20	1
312196	99	49	17,10	cyclictest	357827	-21	/usr/sbin/munin	09:30:24	1
312196	99	48	7,14	cyclictest	427473	-21	ssh	11:09:38	1
312196	99	48	32,11	cyclictest	0	-21	swapper/1	07:20:00	1
312196	99	48	12,21	cyclictest	468435	-21	mailstats	12:05:44	1
312195	99	48	30,6	cyclictest	355611	-21	kworker/u4:13+events_unbound	09:32:46	0
312196	99	47	6,16	cyclictest	409620	-21	ssh	10:44:15	1
312196	99	47	40,5	cyclictest	362182	-21	kworker/u4:16+events_unbound	09:39:56	1
312196	99	47	37,8	cyclictest	338037	-21	systemd	08:49:45	1
312196	99	47	37,7	cyclictest	488070	-21	unixbench_singl	12:30:42	1
312196	99	47	30,11	cyclictest	0	-21	swapper/1	08:25:01	1
312196	99	47	20,7	cyclictest	0	-21	swapper/1	10:50:39	1
312196	99	47	17,11	cyclictest	0	-21	swapper/1	10:15:24	1
312195	99	47	40,5	cyclictest	403208	-21	fschecks_count	10:35:20	0
312195	99	47	38,7	cyclictest	372196	-21	kworker/u4:3+events_unbound	10:09:37	0
312195	99	47	38,7	cyclictest	372196	-21	kworker/u4:3+events_unbound	10:09:37	0
312196	99	46	8,11	cyclictest	380075	-21	ssh	10:03:55	1
312196	99	46	8,11	cyclictest	380075	-21	ssh	10:03:55	1
312196	99	46	7,15	cyclictest	419131	-21	ssh	10:56:30	1
312196	99	46	6,13	cyclictest	397920	-21	ssh	10:27:59	1
312196	99	46	39,5	cyclictest	329532	-21	fschecks_time	08:15:20	1
312196	99	46	37,6	cyclictest	312194	-21	cyclictest	11:25:41	1
312196	99	46	36,7	cyclictest	329121	-21	latency_hist	08:15:01	1
312196	99	46	36,6	cyclictest	323817	-21	kworker/u4:3-rpciod	08:55:30	1
312196	99	46	35,8	cyclictest	0	-21	swapper/1	09:25:25	1
312196	99	46	35,6	cyclictest	343175	-21	kworker/u4:12-rpciod	09:50:33	1
312195	99	46	31,6	cyclictest	444130	-21	kworker/u4:8+events_unbound	11:35:50	0
312196	99	45	8,10	cyclictest	346175	-21	ssh	09:14:04	1
312196	99	45	36,6	cyclictest	312602	-21	fschecks_count	07:10:22	1
312196	99	45	32,9	cyclictest	336658	-21	tail	08:40:37	1
312195	99	45	38,5	cyclictest	320963	-21	cat	07:40:49	0
312195	99	45	38,4	cyclictest	334383	-21	aten2__	08:35:15	0
312195	99	45	36,7	cyclictest	324146	-21	aten_r7power_vo	07:55:18	0
312196	99	44	7,26	cyclictest	351278	-21	ssh	09:20:36	1
312196	99	44	7,26	cyclictest	351278	-21	ssh	09:20:35	1
312196	99	44	6,13	cyclictest	402500	-21	ssh	10:34:51	1
312196	99	44	34,8	cyclictest	319647	-21	timerandwakeup	07:35:39	1
312195	99	44	37,5	cyclictest	309653	-21	kworker/u4:7+events_unbound	08:20:03	0
312195	99	44	36,6	cyclictest	391415	-21	diskmemload	10:20:01	0
312195	99	44	34,8	cyclictest	336617	-21	unixbench-2d	08:40:38	0
312196	99	43	33,7	cyclictest	341167	-21	fschecks_time	09:00:19	1
312195	99	43	34,6	cyclictest	0	-21	swapper/0	09:40:29	0
312196	99	42	31,7	cyclictest	0	-21	swapper/1	07:45:37	1
312196	99	42	12,5	cyclictest	28	-21	ksoftirqd/1	07:25:24	1
312195	99	42	21,5	cyclictest	0	-21	swapper/0	08:34:59	0
312196	99	41	6,12	cyclictest	338834	-21	ntpq	08:50:28	1
312196	99	41	6,12	cyclictest	338834	-21	ntpq	08:50:28	1
312196	99	41	6,11	cyclictest	315521	-21	ntpq	07:20:25	1
312196	99	41	32,6	cyclictest	0	-21	swapper/1	07:50:21	1
312196	99	40	33,4	cyclictest	0	-21	swapper/1	08:30:35	1
312196	99	40	13,7	cyclictest	28	-21	ksoftirqd/1	07:40:47	1
312196	99	28	22,4	cyclictest	0	-21	swapper/1	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17