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 100 highest latencies:

System rack7slot2.osadl.org (updated Mon Mar 30, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1239307	99	101	84,15	cyclictest	1414392	-21	kworker/u4:5+events_unbound	00:08:38	0
1239308	99	80	42,8	cyclictest	1239304	-21	cyclictest	23:30:33	1
1239307	99	75	36,33	cyclictest	0	-21	swapper/0	23:30:24	0
1239307	99	73	53,6	cyclictest	1427115	-21	kworker/u4:9+events_unbound	00:18:42	0
1239308	99	72	53,6	cyclictest	1321882	-21	kworker/u4:4+events_unbound	22:10:34	1
1239307	99	72	38,31	cyclictest	1346721	-21	gltestperf	22:35:20	0
1239307	99	72	38,31	cyclictest	1346721	-21	gltestperf	22:35:19	0
1239308	99	70	59,8	cyclictest	1313295	-21	systemd	21:57:29	1
1239307	99	70	22,45	cyclictest	0	-21	swapper/0	23:40:44	0
1239307	99	69	34,32	cyclictest	1264064	-21	aten_r7power_vo	20:45:15	0
1239307	99	68	55,10	cyclictest	53	-21	kswapd0	22:50:10	0
1239307	99	68	37,29	cyclictest	1385896	-21	aten_r7power_cu	23:20:16	0
1239307	99	68	33,33	cyclictest	1373044	-21	fschecks_time	23:05:19	0
1239308	99	67	58,6	cyclictest	1444881	-21	kworker/u4:5+events_unbound	00:28:45	1
1239307	99	67	39,26	cyclictest	1421185	-21	fschecks_count	00:00:18	0
1239307	99	67	37,28	cyclictest	1355140	-21	aten2__	22:45:16	0
1239307	99	67	32,32	cyclictest	1306789	-21	gltestperf	21:50:21	0
1239308	99	66	56,7	cyclictest	1423308	-21	kworker/u4:6+events_unbound	00:03:04	1
1239307	99	66	5,17	cyclictest	1239306	-21	modprobe	19:10:00	0
1239307	99	66	36,28	cyclictest	1416805	-21	fschecks_count	23:55:20	0
1239307	99	66	35,28	cyclictest	1381231	-21	cat	23:15:01	0
1239308	99	65	56,6	cyclictest	1330893	-21	kworker/u4:8+events_unbound	22:17:32	1
1239307	99	65	58,5	cyclictest	0	-21	swapper/0	22:05:33	0
1239307	99	65	34,29	cyclictest	1439219	-21	ntp_states	00:20:34	0
1239307	99	65	34,28	cyclictest	1256281	-21	aten_r7power_vo	20:15:17	0
1239307	99	65	33,30	cyclictest	1288682	-21	df_abs	21:30:16	0
1239307	99	65	22,40	cyclictest	0	-21	swapper/0	21:55:38	0
1239307	99	64	32,30	cyclictest	1350875	-21	aten_r7power_vo	22:40:16	0
1239307	99	64	26,4	cyclictest	0	-21	swapper/0	19:50:24	0
1239308	99	63	55,6	cyclictest	1370479	-21	kworker/u4:0+events_unbound	23:52:28	1
1239307	99	63	52,7	cyclictest	1369421	-21	timerwakeupswit	23:00:36	0
1239307	99	63	30,31	cyclictest	1265906	-21	processes	20:50:35	0
1239307	99	63	29,31	cyclictest	0	-21	swapper/0	22:55:24	0
1239307	99	63	25,5	cyclictest	1295277	-21	kworker/u4:11-rpciod	21:45:40	0
1239307	99	63	25,4	cyclictest	256	50	irq/23-42890000.ethernet	20:44:59	0
1239307	99	63	23,7	cyclictest	0	-21	swapper/0	22:10:35	0
1239307	99	63	23,31	cyclictest	1332923	-21	latency_hist	22:20:01	0
1239308	99	62	55,5	cyclictest	1258532	-21	kworker/u4:6+events_unbound	20:32:13	1
1239307	99	62	4,20	cyclictest	1407721	-21	ssh	23:45:12	0
1239307	99	62	28,32	cyclictest	0	-21	swapper/0	00:25:36	0
1239307	99	62	27,33	cyclictest	1269927	-21	timerwakeupswit	21:05:38	0
1239307	99	62	27,32	cyclictest	0	-21	swapper/0	20:35:38	0
1239307	99	62	26,33	cyclictest	0	-21	swapper/0	22:20:29	0
1239307	99	62	25,34	cyclictest	0	-21	swapper/0	20:10:20	0
1239307	99	62	25,33	cyclictest	0	-21	swapper/0	21:20:29	0
1239307	99	62	24,6	cyclictest	256	50	irq/23-42890000.ethernet	19:45:00	0
1239307	99	62	20,7	cyclictest	0	-21	swapper/0	20:25:21	0
1239307	99	62	10,12	cyclictest	1430320	-21	ntpq	00:10:28	0
1239307	99	61	32,27	cyclictest	1345992	-21	idleruntime-cro	22:35:00	0
1239307	99	61	31,28	cyclictest	1403053	-21	apt	23:40:00	0
1239307	99	61	31,28	cyclictest	1403053	-21	apt	23:39:59	0
1239307	99	61	27,31	cyclictest	0	-21	swapper/0	21:35:34	0
1239307	99	61	25,6	cyclictest	0	-21	swapper/0	22:00:24	0
1239307	99	61	25,6	cyclictest	0	-21	swapper/0	00:36:18	0
1239307	99	61	25,4	cyclictest	0	-21	swapper/0	23:25:11	0
1239308	99	60	51,7	cyclictest	1414392	-21	kworker/u4:5+events_unbound	00:10:15	1
1239307	99	60	29,29	cyclictest	1239304	-21	cyclictest	19:55:36	0
1239307	99	60	29,28	cyclictest	0	-21	swapper/0	23:15:29	0
1239307	99	60	26,32	cyclictest	1240884	-21	aten_r7power_en	19:15:16	0
1239307	99	60	25,32	cyclictest	0	-21	swapper/0	19:30:33	0
1239307	99	60	23,7	cyclictest	0	-21	swapper/0	19:10:11	0
1239307	99	60	16,16	cyclictest	1416178	-21	cron	23:55:00	0
1239308	99	59	50,5	cyclictest	0	-21	swapper/1	23:35:37	1
1239308	99	59	50,5	cyclictest	0	-21	swapper/1	23:35:36	1
1239308	99	59	49,8	cyclictest	1392853	-21	systemd	23:27:45	1
1239307	99	59	54,3	cyclictest	1449331	-21	kworker/u4:8+events_unbound	00:33:46	0
1239307	99	59	40,17	cyclictest	1341625	-21	latency_hist	22:30:02	0
1239307	99	59	29,27	cyclictest	0	-21	swapper/0	21:25:19	0
1239307	99	59	24,6	cyclictest	0	-21	swapper/0	21:10:16	0
1239307	99	59	2,29	cyclictest	1298214	-21	ntpq	21:40:30	0
1239307	99	58	22,8	cyclictest	0	-21	swapper/0	21:15:40	0
1239307	99	58	22,6	cyclictest	0	-21	swapper/0	20:20:15	0
1239308	99	57	44,9	cyclictest	0	-21	swapper/1	21:15:31	1
1239308	99	56	47,6	cyclictest	1442474	-21	apt-config	00:25:01	1
1239308	99	55	45,7	cyclictest	1250848	-21	kworker/u4:15-rpciod	19:55:33	1
1239308	99	55	44,8	cyclictest	1240615	-21	systemd	19:11:50	1
1239307	99	55	21,7	cyclictest	1248756	-21	fschecks_count	19:45:19	0
1239308	99	54	46,5	cyclictest	0	-21	swapper/1	22:20:41	1
1239307	99	54	16,11	cyclictest	378	-21	dbus-daemon	21:02:17	0
1239308	99	53	45,6	cyclictest	1293956	-21	switchtime	21:35:37	1
1239308	99	53	40,10	cyclictest	1355214	-21	aten_r7power_po	22:45:16	1
1239308	99	52	45,5	cyclictest	1366459	-21	ssh	22:57:41	1
1239308	99	52	43,6	cyclictest	1248308	-21	kworker/u4:13+events_unbound	20:02:05	1
1239308	99	51	43,6	cyclictest	1255958	-21	systemd	20:12:09	1
1239308	99	50	42,6	cyclictest	1295277	-21	kworker/u4:11+events_unbound	22:02:30	1
1239308	99	50	36,7	cyclictest	0	-21	swapper/1	21:25:30	1
1239308	99	49	41,6	cyclictest	1404099	-21	gcc	23:40:30	1
1239308	99	49	41,6	cyclictest	1258536	-21	systemd	20:22:12	1
1239308	99	49	39,7	cyclictest	1377585	-21	kernelversion	23:10:22	1
1239308	99	49	34,10	cyclictest	37	-21	kcompactd0	23:07:12	1
1239307	99	49	31,16	cyclictest	1242154	-21	aten2__	19:20:14	0
1239308	99	48	7,32	cyclictest	1271094	-21	ssh	21:10:24	1
1239308	99	48	41,5	cyclictest	1297451	-21	aten2__	21:40:16	1
1239308	99	48	41,5	cyclictest	0	-21	swapper/1	21:50:12	1
1239308	99	48	39,7	cyclictest	1241805	-21	unixbench_multi	19:15:37	1
1239308	99	48	39,6	cyclictest	1372363	-21	idleruntime-cro	23:05:00	1
1239308	99	48	38,8	cyclictest	1420601	-21	ssh	00:00:01	1
1239308	99	48	38,7	cyclictest	1385616	-21	latency_hist	23:20:01	1
1239308	99	48	38,6	cyclictest	0	-21	swapper/1	21:05:35	1
1239308	99	48	35,9	cyclictest	0	-21	swapper/1	21:45:19	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17