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 Mon Dec 22, 2025 12:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
950214	99	118	99,6	cyclictest	1042948	-21	kworker/u4:18+events_unbound	11:01:11	0
950214	99	118	111,5	cyclictest	983700	-21	kworker/u4:1+events_unbound	09:30:59	0
950216	99	117	97,6	cyclictest	1128813	-21	kworker/u4:6+events_unbound	12:21:22	1
950216	99	110	101,7	cyclictest	1060078	-21	kworker/u4:8+events_unbound	10:51:08	1
950216	99	107	100,5	cyclictest	1084701	-21	kworker/u4:2+events_unbound	11:21:13	1
950216	99	107	100,5	cyclictest	1017869	-21	kworker/u4:7+events_unbound	09:56:01	1
950216	99	106	92,5	cyclictest	1122085	-21	kworker/u4:3+events_unbound	12:16:21	1
950214	99	106	99,5	cyclictest	973344	-21	kworker/u4:13+events_unbound	09:20:57	0
950214	99	104	96,6	cyclictest	1084701	-21	kworker/u4:2+events_unbound	11:31:15	0
950216	99	95	82,5	cyclictest	1026548	-21	kworker/u4:1+events_unbound	10:06:01	1
950214	99	89	72,7	cyclictest	970708	-21	kworker/u4:1+events_unbound	09:00:55	0
950216	99	88	81,5	cyclictest	1004839	-21	kworker/u4:14+events_unbound	09:41:00	1
950216	99	88	79,7	cyclictest	1055748	-21	kworker/u4:1+events_unbound	11:06:12	1
950216	99	87	78,7	cyclictest	1047206	-21	kworker/u4:5+events_unbound	10:31:04	1
950216	99	87	68,6	cyclictest	1035037	-21	kworker/u4:6+events_unbound	10:26:03	1
950214	99	87	79,6	cyclictest	1133592	-21	kworker/u4:7+events_unbound	12:36:25	0
950214	99	87	79,5	cyclictest	979831	-21	kworker/u4:19+events_unbound	09:15:00	0
950216	99	86	79,5	cyclictest	1000519	-21	kworker/u4:12+events_unbound	10:11:03	1
950216	99	85	78,5	cyclictest	1051471	-21	kworker/u4:7+events_unbound	10:36:05	1
950214	99	85	77,6	cyclictest	941659	-21	kworker/u4:2+events_unbound	08:20:42	0
950216	99	83	75,6	cyclictest	973344	-21	kworker/u4:13+events_unbound	09:20:00	1
950216	99	69	54,6	cyclictest	941659	-21	kworker/u4:2+events_unbound	09:10:57	1
950214	99	69	60,6	cyclictest	972071	-21	kworker/u4:8+events_unbound	09:05:56	0
950216	99	68	52,6	cyclictest	1110047	-21	kworker/u4:0+events_unbound	11:50:14	1
950216	99	68	48,6	cyclictest	959211	-21	kworker/u4:13+events_unbound	07:55:00	1
950216	99	67	59,6	cyclictest	970712	-21	kworker/u4:9+events_unbound	08:55:55	1
950214	99	66	57,7	cyclictest	1000519	-21	kworker/u4:12+events_unbound	09:51:00	0
950216	99	64	50,6	cyclictest	979831	-21	kworker/u4:19+events_unbound	10:20:02	1
950216	99	62	45,5	cyclictest	1141992	-21	kworker/u4:16+events_unbound	12:38:01	1
950214	99	62	10,40	cyclictest	950161	-21	cron	07:10:01	0
950216	99	61	55,4	cyclictest	960482	-21	kworker/u4:15+events_unbound	08:10:00	1
950216	99	61	53,6	cyclictest	1141390	-21	kworker/u4:15+events_unbound	12:26:23	1
950216	99	60	53,5	cyclictest	965588	-21	kworker/u4:21+events_unbound	08:10:37	1
950214	99	59	50,6	cyclictest	964352	-21	awk	08:05:00	0
950214	99	59	46,11	cyclictest	1003297	-21	gltestperf	09:35:19	0
950216	99	58	53,4	cyclictest	973345	-21	kworker/u4:14+events_unbound	08:50:01	1
950214	99	58	51,5	cyclictest	53	-21	kswapd0	11:10:14	0
950216	99	57	49,6	cyclictest	1097417	-21	kworker/u4:11+events_unbound	12:10:03	1
950216	99	57	49,6	cyclictest	1097417	-21	kworker/u4:11+events_unbound	12:10:03	1
950216	99	57	37,5	cyclictest	1122086	-21	kworker/u4:4+events_unbound	12:02:00	1
950216	99	56	49,5	cyclictest	1097416	-21	kworker/u4:10+events_unbound	11:41:17	1
950216	99	56	48,6	cyclictest	969438	-21	kworker/u4:12+events_unbound	08:25:45	1
950214	99	56	45,9	cyclictest	1124410	-21	df_abs	12:00:19	0
950216	99	55	27,7	cyclictest	1000519	-21	kworker/u4:12+events_unbound	09:45:17	1
950214	99	55	44,9	cyclictest	53	-21	kswapd0	09:55:06	0
950214	99	55	32,20	cyclictest	969662	-21	aten2__	08:25:15	0
950214	99	54	46,6	cyclictest	972071	-21	kworker/u4:8+events_unbound	08:50:03	0
950214	99	54	45,6	cyclictest	0	-21	swapper/0	09:15:15	0
950214	99	54	4,25	cyclictest	1025079	-21	ssh	10:00:33	0
950216	99	53	46,5	cyclictest	988119	-21	kworker/u4:7+events_unbound	09:26:00	1
950216	99	53	45,6	cyclictest	1088946	-21	kworker/u4:6+events_unbound	11:34:43	1
950216	99	53	44,6	cyclictest	1062356	-21	fschecks_count	10:45:21	1
950214	99	53	46,5	cyclictest	1136243	-21	ld	12:15:31	0
950214	99	53	46,5	cyclictest	1084705	-21	kworker/u4:7+events_unbound	11:18:59	0
950214	99	53	44,6	cyclictest	1070438	-21	/usr/sbin/munin	10:55:17	0
950214	99	53	39,6	cyclictest	955376	-21	kworker/u4:10+events_unbound	07:46:00	0
950214	99	53	33,18	cyclictest	971233	-21	fschecks_count	08:30:23	0
950216	99	52	45,5	cyclictest	1084705	-21	kworker/u4:7+events_unbound	11:17:02	1
950214	99	52	45,5	cyclictest	974639	-21	kworker/u4:16+events_unbound	08:55:02	0
950214	99	52	44,6	cyclictest	1032350	-21	apt-config	10:10:01	0
950214	99	52	43,6	cyclictest	1112748	-21	mailstats	11:45:40	0
950214	99	52	42,4	cyclictest	1068549	-21	kworker/u4:0+events_unbound	11:07:00	0
950216	99	51	46,4	cyclictest	941659	-21	kworker/u4:2+events_unbound	07:25:25	1
950216	99	51	45,4	cyclictest	1022220	-21	kworker/u4:8+events_unbound	10:00:04	1
950216	99	51	44,6	cyclictest	1004359	-21	sshd	09:35:59	1
950216	99	51	42,6	cyclictest	1038695	-21	kworker/u4:16+events_unbound	10:19:43	1
950216	99	51	42,6	cyclictest	1038695	-21	kworker/u4:16+events_unbound	10:19:43	1
950214	99	51	43,6	cyclictest	960482	-21	kworker/u4:15+events_unbound	08:15:03	0
950214	99	51	41,7	cyclictest	1007649	-21	gltestperf	09:40:22	0
950214	99	51	37,12	cyclictest	950211	-21	cyclictest	12:20:19	0
950214	99	51	34,9	cyclictest	0	-21	swapper/0	11:20:27	0
950214	99	51	28,20	cyclictest	952023	-21	fschecks_time	07:15:22	0
950216	99	50	43,5	cyclictest	1055748	-21	kworker/u4:1+events_unbound	10:40:44	1
950216	99	50	41,7	cyclictest	950543	-21	aten_r7power_po	07:10:21	1
950216	99	49	42,5	cyclictest	998831	-21	cpu	09:30:19	1
950216	99	49	42,5	cyclictest	1086563	-21	sed	11:15:01	1
950214	99	49	38,7	cyclictest	974659	-21	kworker/u4:16	08:45:00	0
950214	99	49	36,6	cyclictest	975997	-21	kworker/u4:17+events_unbound	08:48:59	0
950214	99	49	33,7	cyclictest	1060078	-21	kworker/u4:8+events_unbound	10:43:09	0
950214	99	49	28,19	cyclictest	950727	-21	fschecks_count	07:10:24	0
950216	99	48	42,4	cyclictest	1120996	-21	mailstats	11:55:38	1
950216	99	48	41,5	cyclictest	972069	-21	kworker/u4:3+events_unbound	08:35:49	1
950216	99	48	40,6	cyclictest	1110048	-21	kworker/u4:1+events_unbound	11:46:18	1
950216	99	48	38,7	cyclictest	971816	-21	switchtime	08:30:40	1
950216	99	48	37,8	cyclictest	963198	-21	latency_hist	08:00:02	1
950214	99	48	41,5	cyclictest	987487	-21	kworker/u4:5+events_unbound	09:30:00	0
950214	99	48	41,5	cyclictest	1047210	-21	kworker/u4:9+events_unbound	10:27:00	0
950214	99	48	39,6	cyclictest	1148356	-21	gltestperf	12:30:24	0
950214	99	48	38,7	cyclictest	955761	-21	df	07:30:18	0
950214	99	48	38,7	cyclictest	1120036	-21	aten2__	11:55:16	0
950214	99	48	38,6	cyclictest	1144174	-21	ssh	12:25:24	0
950214	99	48	24,20	cyclictest	0	-21	swapper/0	10:30:38	0
950216	99	47	41,4	cyclictest	0	-21	swapper/1	10:56:07	1
950216	99	47	40,5	cyclictest	953271	-21	fschecks_count	07:20:20	1
950216	99	47	40,5	cyclictest	937825	-21	kworker/u4:18+events_unbound	07:40:02	1
950216	99	47	40,5	cyclictest	1149736	-21	kworker/u4:4+events_unbound	12:32:00	1
950216	99	47	38,7	cyclictest	973962	-21	gltestperf	08:40:21	1
950214	99	47	6,6	cyclictest	15	1	ktimers/0	11:50:33	0
950214	99	47	41,4	cyclictest	1103800	-21	fschecks_count	11:35:25	0
950214	99	47	40,5	cyclictest	1041339	-21	fschecks_count	10:20:22	0
950214	99	47	39,5	cyclictest	0	-21	swapper/0	11:40:13	0
950214	99	47	38,7	cyclictest	1053666	-21	aten_r7power_en	10:35:16	0
950216	99	46	38,6	cyclictest	973343	-21	kworker/u4:12+events_unbound	08:50:54	1
950216	99	46	37,7	cyclictest	1103554	-21	aten_r7power_en	11:35:22	1
950216	99	46	37,7	cyclictest	1015843	-21	cpu	09:50:17	1
950216	99	46	35,5	cyclictest	951530	-21	kworker/u4:5+events_unbound	07:39:00	1
950214	99	46	7,27	cyclictest	15	1	ktimers/0	11:30:01	0
950214	99	46	42,3	cyclictest	0	-21	swapper/0	10:10:17	0
950214	99	46	39,5	cyclictest	972069	-21	kworker/u4:3+events_unbound	08:35:59	0
950214	99	46	35,7	cyclictest	0	-21	swapper/0	07:40:26	0
950214	99	46	19,14	cyclictest	15	1	ktimers/0	10:50:16	0
950216	99	45	36,7	cyclictest	1095258	-21	aten_r7power_cu	11:25:20	1
950214	99	45	37,6	cyclictest	1132369	-21	switchtime	12:10:39	0
950214	99	45	37,6	cyclictest	1132369	-21	switchtime	12:10:39	0
950214	99	45	37,5	cyclictest	962238	-21	fschecks_time	07:55:19	0
950214	99	45	36,5	cyclictest	1017866	-21	kworker/u4:2-rpciod	10:15:40	0
950214	99	45	36,5	cyclictest	1017866	-21	kworker/u4:2-rpciod	10:15:40	0
950214	99	45	26,5	cyclictest	17	1	rcu_preempt	09:45:44	0
950214	99	45	18,14	cyclictest	15	1	ktimers/0	12:05:22	0
950216	99	44	35,7	cyclictest	959615	-21	df_abs	07:45:18	1
950216	99	44	34,7	cyclictest	0	-21	swapper/1	09:20:33	1
950216	99	44	33,5	cyclictest	968140	-21	kworker/u4:6+events_unbound	08:17:59	1
950214	99	44	37,5	cyclictest	960482	-21	kworker/u4:15+events_unbound	08:10:02	0
950214	99	44	36,5	cyclictest	955408	-21	munin-plugin-st	07:30:00	0
950214	99	44	20,20	cyclictest	1060078	-21	kworker/u4:8+xprtiod	10:45:26	0
950216	99	43	35,5	cyclictest	963433	-21	sed	08:00:17	1
950216	99	43	34,7	cyclictest	952165	-21	gltestperf	07:15:23	1
950216	99	43	34,7	cyclictest	1131028	-21	ssh	12:10:00	1
950216	99	43	33,7	cyclictest	0	-21	swapper/1	11:00:41	1
950214	99	43	36,4	cyclictest	960730	-21	aten_r7power_cu	07:50:16	0
950214	99	43	35,6	cyclictest	955376	-21	kworker/u4:10+events_unbound	07:35:06	0
950216	99	42	36,4	cyclictest	973344	-21	kworker/u4:13+events_unbound	09:05:03	1
950216	99	42	35,5	cyclictest	935165	-21	kworker/u4:14+events_unbound	07:31:59	1
950216	99	42	32,7	cyclictest	968705	-21	fschecks_time	08:20:20	1
950214	99	42	29,5	cyclictest	932615	-21	kworker/u4:8+events_unbound	07:22:45	0
950216	99	41	33,6	cyclictest	979152	-21	gltestperf	09:00:20	1
950216	99	41	31,7	cyclictest	950306	-21	apt-config	07:10:01	1
950214	99	41	30,8	cyclictest	933882	-21	kworker/u4:9-rpciod	08:05:18	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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