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 792 highest latencies:

System rack7slot2.osadl.org (updated Wed Aug 05, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1035232	99	89	80,6	cyclictest	1079298	-21	kworker/u4:28+events_unbound	10:23:26	1
1035232	99	89	80,6	cyclictest	1079298	-21	kworker/u4:28+events_unbound	10:23:25	1
1035232	99	86	77,7	cyclictest	1145401	-21	kworker/u4:6+events_unbound	12:13:40	1
1035231	99	81	66,10	cyclictest	1207324	-21	kworker/u4:18+xprtiod	12:30:24	0
1035231	99	79	62,14	cyclictest	53	-21	kswapd0	09:55:12	0
1035232	99	71	63,6	cyclictest	1101183	-21	kworker/u4:5+events_unbound	10:28:26	1
1035232	99	71	46,15	cyclictest	53	-21	kswapd0	11:25:08	1
1035232	99	70	63,5	cyclictest	1180887	-21	kworker/u4:5+events_unbound	11:58:39	1
1035232	99	69	61,6	cyclictest	1127992	-21	kworker/u4:3+events_unbound	11:08:34	1
1035232	99	69	48,13	cyclictest	53	-21	kswapd0	12:30:10	1
1035231	99	68	9,48	cyclictest	1076936	-21	sh	10:00:37	0
1035231	99	67	5,18	cyclictest	1073	-21	snmpd	10:05:08	0
1035231	99	67	35,17	cyclictest	1096681	-21	kworker/u4:3+events_unbound	10:25:06	0
1035232	99	65	57,6	cyclictest	1145401	-21	kworker/u4:6+events_unbound	11:23:35	1
1035231	99	65	52,11	cyclictest	53	-21	kswapd0	10:30:15	0
1035231	99	65	17,24	cyclictest	1187780	-21	ssh	12:05:13	0
1035232	99	63	54,7	cyclictest	1028686	-21	kworker/u4:4+events_unbound	09:18:14	1
1035231	99	62	50,9	cyclictest	378	-21	dbus-daemon	07:53:04	0
1035231	99	61	49,9	cyclictest	53	-21	kswapd0	09:40:01	0
1035232	99	60	51,6	cyclictest	1037433	-21	kworker/u4:6+events_unbound	09:10:01	1
1035232	99	60	2,51	cyclictest	1082238	-21	ssh	10:05:36	1
1035232	99	59	49,8	cyclictest	1039672	-21	systemd	09:03:12	1
1035231	99	59	36,12	cyclictest	1037463	-21	apt-get	08:10:08	0
1035232	99	58	48,7	cyclictest	1038181	-21	kworker/u4:11+events_unbound	08:43:11	1
1035231	99	58	5,47	cyclictest	1117476	-21	ssh	10:45:29	0
1035232	99	56	47,6	cyclictest	1117511	-21	ld	10:45:30	1
1035232	99	56	46,5	cyclictest	0	-21	swapper/1	09:10:12	1
1035232	99	55	48,5	cyclictest	1079286	-21	kworker/u4:16+events_unbound	10:18:24	1
1035232	99	55	47,6	cyclictest	1035368	-21	kworker/u4:7+events_unbound	07:28:02	1
1035231	99	55	35,18	cyclictest	1156331	-21	munin-plugin-st	11:30:01	0
1035231	99	55	34,9	cyclictest	1037730	-21	apt-get	08:15:11	0
1035231	99	54	24,27	cyclictest	1127994	-21	kworker/u4:7	10:57:26	0
1035232	99	53	46,5	cyclictest	1201457	-21	fschecks_count	12:20:19	1
1035232	99	53	45,6	cyclictest	1186568	-21	sshd	12:03:38	1
1035232	99	53	45,5	cyclictest	1035164	-21	kworker/u4:0+events_unbound	08:10:00	1
1035231	99	53	8,21	cyclictest	1144663	-21	users	11:15:46	0
1035231	99	53	46,5	cyclictest	1094821	-21	/usr/sbin/munin	10:20:17	0
1035231	99	53	46,5	cyclictest	1094821	-21	/usr/sbin/munin	10:20:16	0
1035231	99	53	29,18	cyclictest	1113002	-21	ssh	10:40:27	0
1035231	99	53	29,18	cyclictest	1113002	-21	ssh	10:40:26	0
1035232	99	52	45,5	cyclictest	1035368	-21	kworker/u4:7+events_unbound	07:23:02	1
1035232	99	52	43,7	cyclictest	1208776	-21	systemd	12:28:43	1
1035231	99	52	8,10	cyclictest	1108764	-21	ntp_states	10:35:35	0
1035231	99	52	43,7	cyclictest	1215575	-21	unixbench-2d	12:35:44	0
1035232	99	51	44,5	cyclictest	1123526	-21	kworker/u4:9+events_unbound	11:00:13	1
1035232	99	51	43,6	cyclictest	1036127	-21	systemd	07:33:02	1
1035232	99	51	42,6	cyclictest	1047689	-21	kworker/u4:0+events_unbound	09:33:15	1
1035231	99	51	47,2	cyclictest	1172497	-21	kworker/u4:9+events_unbound	11:48:37	0
1035231	99	51	36,10	cyclictest	256	50	irq/23-42890000.ethernet	11:40:28	0
1035232	99	50	42,6	cyclictest	1140121	-21	unixbench_singl	11:10:39	1
1035232	99	50	32,15	cyclictest	1037082	-21	kworker/u4:5	08:00:00	1
1035231	99	50	40,6	cyclictest	1038740	-21	kworker/u4:11	08:39:59	0
1035231	99	50	40,5	cyclictest	0	-21	swapper/0	09:10:10	0
1035231	99	50	32,16	cyclictest	1147986	-21	df_abs	11:20:17	0
1035231	99	50	11,14	cyclictest	1136782	-21	ssh	11:07:17	0
1035232	99	49	43,4	cyclictest	1086921	-21	timerandwakeup	10:10:39	1
1035232	99	49	40,6	cyclictest	1028686	-21	kworker/u4:4-rpciod	09:00:00	1
1035232	99	49	38,7	cyclictest	1068013	-21	ssh	09:50:33	1
1035231	99	49	6,32	cyclictest	1183998	-21	ssh	12:00:29	0
1035231	99	49	40,6	cyclictest	1154431	-21	kworker/u4:9-rpciod	11:30:17	0
1035231	99	49	37,7	cyclictest	1052578	-21	ssh	09:28:42	0
1035231	99	49	29,18	cyclictest	1071338	-21	apt-config	09:55:02	0
1035231	99	49	11,14	cyclictest	1205121	-21	ssh	12:24:51	0
1035231	99	49	11,14	cyclictest	1194021	-21	ssh	12:11:26	0
1035232	99	48	42,5	cyclictest	0	-21	swapper/1	11:35:38	1
1035232	99	48	41,5	cyclictest	1126160	-21	sh	10:55:22	1
1035232	99	48	41,5	cyclictest	1079596	-21	sshd	10:02:44	1
1035232	99	48	41,5	cyclictest	1036302	-21	kworker/u4:5+events_unbound	08:53:14	1
1035232	99	48	40,5	cyclictest	1103892	-21	basename	10:30:26	1
1035232	99	48	39,7	cyclictest	1197075	-21	fschecks_time	12:15:21	1
1035232	99	48	39,7	cyclictest	1147537	-21	wc	11:20:02	1
1035231	99	48	41,5	cyclictest	1090547	-21	fschecks_count	10:15:19	0
1035231	99	48	11,13	cyclictest	1163281	-21	ssh	11:37:05	0
1035232	99	47	40,5	cyclictest	1166581	-21	switchtime	11:40:38	1
1035232	99	47	40,5	cyclictest	0	-21	swapper/1	12:35:37	1
1035232	99	47	39,6	cyclictest	1191019	-21	systemd	12:08:40	1
1035232	99	47	39,5	cyclictest	0	-21	swapper/1	11:35:01	1
1035232	99	47	36,9	cyclictest	1038542	-21	systemd	08:33:09	1
1035231	99	47	28,15	cyclictest	1129957	-21	apt-get	11:00:13	0
1035232	99	46	39,5	cyclictest	1069	-21	lldpd	10:37:33	1
1035232	99	46	39,4	cyclictest	0	-21	swapper/1	09:55:15	1
1035232	99	46	34,7	cyclictest	0	-21	swapper/1	10:50:17	1
1035232	99	46	3,33	cyclictest	1175311	-21	ssh	11:50:38	1
1035231	99	46	39,5	cyclictest	1121665	-21	sed	10:50:22	0
1035231	99	46	35,8	cyclictest	1054612	-21	ssh	09:31:39	0
1035231	99	46	35,6	cyclictest	256	50	irq/23-42890000.ethernet	12:15:16	0
1035231	99	46	30,14	cyclictest	1142971	-21	cron	11:15:01	0
1035231	99	46	29,15	cyclictest	1039314	-21	latency_hist	08:55:00	0
1035232	99	45	38,5	cyclictest	1170913	-21	ps	11:45:40	1
1035232	99	45	38,5	cyclictest	1036123	-21	kworker/u4:1+events_unbound	08:13:09	1
1035231	99	45	38,5	cyclictest	1035611	-21	idleruntime-cro	07:20:00	0
1035231	99	45	28,13	cyclictest	1085785	-21	ssh	10:10:12	0
1035231	99	45	11,10	cyclictest	1182392	-21	ssh	11:59:07	0
1035232	99	44	37,5	cyclictest	1035374	-21	systemd	07:12:59	1
1035232	99	44	36,6	cyclictest	1050054	-21	sh	09:25:00	1
1035232	99	44	36,6	cyclictest	1037698	-21	kworker/u4:7-rpciod	08:20:00	1
1035232	99	44	36,6	cyclictest	1036304	-21	kworker/u4:6+events_unbound	07:38:04	1
1035232	99	43	37,4	cyclictest	1037308	-21	grep	08:05:01	1
1035232	99	43	36,5	cyclictest	1036881	-21	cron	07:55:00	1
1035232	99	43	36,5	cyclictest	1036302	-21	kworker/u4:5+events_unbound	08:28:08	1
1035231	99	43	8,12	cyclictest	1063534	-21	munin-run	09:45:00	0
1035231	99	43	35,5	cyclictest	0	-21	swapper/0	12:25:31	0
1035231	99	43	25,13	cyclictest	1175060	-21	ntpq	11:50:27	0
1035232	99	42	34,6	cyclictest	0	-21	swapper/1	10:40:13	1
1035232	99	42	34,6	cyclictest	0	-21	swapper/1	10:40:12	1
1035231	99	42	37,4	cyclictest	1039890	-21	/usr/sbin/munin	09:10:01	0
1035231	99	42	33,6	cyclictest	0	-21	swapper/0	07:40:00	0
1035231	99	42	27,13	cyclictest	1035777	-21	cron	07:24:59	0
1035232	99	41	34,5	cyclictest	1036542	-21	idleruntime-cro	07:45:00	1
1035232	99	41	33,6	cyclictest	1038181	-21	kworker/u4:11+events_unbound	08:23:10	1
1035231	99	41	29,10	cyclictest	0	-21	swapper/0	08:30:00	0
1035231	99	41	14,11	cyclictest	1038550	-21	cron	08:35:01	0
1035231	99	40	3,34	cyclictest	1066907	-21	awk	09:50:00	0
1035231	99	40	30,7	cyclictest	1036817	-21	latency_hist	07:50:01	0
1035231	99	40	30,7	cyclictest	1036097	-21	latency_hist	07:30:02	0
1035231	99	40	25,11	cyclictest	0	-21	swapper/0	09:16:46	0
1035232	99	39	17,10	cyclictest	17	1	rcu_preempt	09:45:00	1
1035231	99	39	31,5	cyclictest	1038955	-21	apt	08:45:00	0
1035231	99	39	30,6	cyclictest	0	-21	swapper/0	07:45:01	0
1035231	99	39	19,12	cyclictest	256	50	irq/23-42890000.ethernet	08:07:24	0
1035232	99	38	5,26	cyclictest	1064477	-21	ssh	09:46:14	1
1035232	99	38	27,9	cyclictest	1053433	-21	munin-run	09:30:01	1
1035232	99	37	30,5	cyclictest	1028686	-21	kworker/u4:4+events_unbound	08:38:12	1
1035231	99	36	6,10	cyclictest	1048150	-21	ssh	09:22:03	0
1035231	99	36	28,6	cyclictest	0	-21	swapper/0	09:00:00	0
1035231	99	36	27,6	cyclictest	0	-21	swapper/0	08:00:01	0
1035232	99	35	29,4	cyclictest	1051120	-21	kworker/u4:3-rpciod	09:39:59	1
1035231	99	35	27,6	cyclictest	0	-21	swapper/0	09:05:02	0
1035231	99	35	22,8	cyclictest	37	-21	kcompactd0	07:33:00	0
1035231	99	35	17,11	cyclictest	1038248	-21	latency_hist	08:25:00	0
1035232	99	34	26,6	cyclictest	0	-21	swapper/1	07:50:01	1
1035231	99	34	9,21	cyclictest	1035401	-21	latency_hist	07:15:01	0
1035231	99	34	22,9	cyclictest	378	-21	dbus-daemon	08:48:12	0
1035232	99	33	27,4	cyclictest	0	-21	swapper/1	07:20:01	1
1035231	99	33	2,13	cyclictest	1037261	-21	sshd	08:03:32	0
1035232	99	31	22,7	cyclictest	378	-21	dbus-daemon	08:48:11	1
1035231	99	31	22,6	cyclictest	0	-21	swapper/0	07:10:01	0
1035232	99	30	23,5	cyclictest	1035194	-21	kworker/u4:1+events_unbound	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