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 Tue Jun 02, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1106499	99	109	102,5	cyclictest	1129525	-21	kworker/u4:1+events_unbound	20:42:59	0
1106500	99	107	98,6	cyclictest	1206213	-21	kworker/u4:10+events_unbound	22:33:14	1
1106499	99	104	95,6	cyclictest	1232294	-21	kworker/u4:8+events_unbound	22:58:19	0
1106500	99	103	96,5	cyclictest	1192840	-21	kworker/u4:10+events_unbound	22:13:12	1
1106499	99	102	94,6	cyclictest	1119296	-21	kworker/u4:7+events_unbound	20:53:00	0
1106499	99	100	92,6	cyclictest	1148723	-21	kworker/u4:2+events_unbound	21:23:06	0
1106499	99	98	91,5	cyclictest	1232291	-21	kworker/u4:4+events_unbound	23:23:22	0
1106499	99	97	89,6	cyclictest	1091408	-21	kworker/u4:20+events_unbound	21:03:03	0
1106500	99	94	87,5	cyclictest	1197289	-21	kworker/u4:0+events_unbound	22:38:14	1
1106499	99	94	71,8	cyclictest	1115398	-21	kworker/u4:9+events_unbound	19:55:01	0
1106500	99	93	73,5	cyclictest	1108987	-21	kworker/u4:10+events_unbound	19:50:00	1
1106499	99	92	83,6	cyclictest	1197291	-21	kworker/u4:2+events_unbound	22:18:12	0
1106499	99	91	75,6	cyclictest	1267215	-21	kworker/u4:3+events_unbound	23:38:24	0
1106499	99	89	82,5	cyclictest	1153211	-21	kworker/u4:10+events_unbound	21:58:10	0
1106499	99	86	78,6	cyclictest	1105218	-21	kworker/u4:5+events_unbound	19:22:47	0
1106499	99	83	76,5	cyclictest	1134630	-21	kworker/u4:0+events_unbound	20:58:00	0
1106499	99	83	75,6	cyclictest	1112833	-21	kworker/u4:14+events_unbound	19:32:49	0
1106500	99	80	73,4	cyclictest	1110294	-21	kworker/u4:13+events_unbound	19:25:00	1
1106499	99	79	71,6	cyclictest	1192839	-21	kworker/u4:6+events_unbound	22:53:17	0
1106500	99	77	59,7	cyclictest	1130820	-21	kworker/u4:6+events_unbound	20:55:02	1
1106500	99	76	69,5	cyclictest	1148722	-21	kworker/u4:0+events_unbound	22:03:11	1
1106500	99	75	67,6	cyclictest	1232291	-21	kworker/u4:4+events_unbound	23:40:00	1
1106500	99	74	67,5	cyclictest	1107717	-21	kworker/u4:9+events_unbound	19:20:02	1
1106500	99	74	66,6	cyclictest	1144138	-21	kworker/u4:6+events_unbound	21:18:04	1
1106499	99	74	66,6	cyclictest	1103984	-21	kworker/u4:1+events_unbound	20:17:56	0
1106499	99	73	65,6	cyclictest	1306709	-21	kworker/u4:9+events_unbound	00:28:27	0
1106500	99	72	54,6	cyclictest	1091408	-21	kworker/u4:20+events_unbound	19:30:01	1
1106500	99	71	63,6	cyclictest	1135930	-21	kworker/u4:1+events_unbound	21:13:04	1
1106500	99	69	61,6	cyclictest	1175650	-21	kworker/u4:7+events_unbound	22:17:00	1
1106500	99	69	60,7	cyclictest	1258318	-21	kworker/u4:5+events_unbound	23:30:01	1
1106500	99	69	60,7	cyclictest	1258318	-21	kworker/u4:5+events_unbound	23:30:00	1
1106499	99	69	61,6	cyclictest	1108987	-21	kworker/u4:10+events_unbound	19:37:49	0
1106500	99	68	51,6	cyclictest	1232297	-21	kworker/u4:11+events_unbound	23:00:01	1
1106499	99	68	59,6	cyclictest	1108987	-21	kworker/u4:10+events_unbound	20:22:56	0
1106499	99	67	58,6	cyclictest	1288095	-21	switchtime	00:00:38	0
1106499	99	67	58,6	cyclictest	1288095	-21	switchtime	00:00:37	0
1106499	99	67	42,18	cyclictest	1148725	-21	kworker/u4:5+events_unbound	21:25:59	0
1106500	99	66	50,6	cyclictest	1119296	-21	kworker/u4:7+events_unbound	20:20:00	1
1106500	99	66	45,7	cyclictest	1280631	-21	kworker/u4:14+events_unbound	23:53:24	1
1106499	99	66	59,5	cyclictest	1091408	-21	kworker/u4:20+events_unbound	19:57:51	0
1106499	99	65	47,10	cyclictest	1247283	-21	kworker/u4:2	23:15:01	0
1106500	99	63	54,6	cyclictest	1117941	-21	kworker/u4:0+events_unbound	20:35:01	1
1106499	99	63	54,6	cyclictest	1108988	-21	kworker/u4:11+events_unbound	20:07:53	0
1106500	99	62	55,5	cyclictest	1302222	-21	kworker/u4:7+events_unbound	00:18:26	1
1106500	99	62	54,6	cyclictest	1227843	-21	kworker/u4:3+events_unbound	23:17:01	1
1106499	99	62	54,5	cyclictest	0	-21	swapper/0	22:00:31	0
1106499	99	62	46,7	cyclictest	1206213	-21	kworker/u4:10+events_unbound	22:35:03	0
1106500	99	61	54,5	cyclictest	1117941	-21	kworker/u4:0+events_unbound	20:05:00	1
1106499	99	61	53,6	cyclictest	1096521	-21	kworker/u4:0+events_unbound	19:40:02	0
1106499	99	61	48,7	cyclictest	1197291	-21	kworker/u4:2+events_unbound	22:45:00	0
1106500	99	60	54,4	cyclictest	1129525	-21	kworker/u4:1+events_unbound	20:50:00	1
1106499	99	60	53,5	cyclictest	1208458	-21	cut	22:30:20	0
1106499	99	60	42,6	cyclictest	1236740	-21	kworker/u4:0+events_unbound	23:04:58	0
1106500	99	59	47,6	cyclictest	1144139	-21	kworker/u4:7+events_unbound	21:24:58	1
1106499	99	59	51,6	cyclictest	1105217	-21	kworker/u4:3+events_unbound	19:17:02	0
1106500	99	58	48,8	cyclictest	1290074	-21	systemd	00:03:25	1
1106500	99	58	48,8	cyclictest	1290074	-21	systemd	00:03:24	1
1106499	99	58	46,9	cyclictest	1221638	-21	basename	22:45:21	0
1106499	99	58	43,6	cyclictest	1188388	-21	kworker/u4:18+events_unbound	22:09:46	0
1106500	99	57	50,5	cyclictest	1144138	-21	kworker/u4:6+events_unbound	21:35:00	1
1106499	99	57	51,4	cyclictest	15	1	ktimers/0	22:12:01	0
1106500	99	56	48,6	cyclictest	1197291	-21	kworker/u4:2+events_unbound	22:44:01	1
1106499	99	56	45,8	cyclictest	1110686	-21	df	19:25:16	0
1106500	99	55	48,5	cyclictest	1315530	-21	kworker/u4:6+events_unbound	00:36:00	1
1106500	99	55	47,5	cyclictest	1204579	-21	/usr/sbin/munin	22:25:33	1
1106499	99	55	47,6	cyclictest	1138842	-21	unixbench_singl	21:10:40	0
1106499	99	55	47,6	cyclictest	1117943	-21	kworker/u4:4+events_unbound	20:30:03	0
1106500	99	54	46,5	cyclictest	1244529	-21	unixbench_singl	23:10:41	1
1106500	99	54	45,7	cyclictest	1171577	-21	sshd	21:48:08	1
1106500	99	54	40,8	cyclictest	0	-21	swapper/1	19:10:24	1
1106499	99	54	47,5	cyclictest	1144138	-21	kworker/u4:6+events_unbound	21:31:58	0
1106499	99	54	46,6	cyclictest	1148722	-21	kworker/u4:0+events_unbound	21:55:01	0
1106500	99	53	47,4	cyclictest	1153211	-21	kworker/u4:10+events_unbound	21:40:04	1
1106500	99	53	46,5	cyclictest	1157738	-21	kworker/u4:9+events_unbound	22:07:58	1
1106499	99	53	45,6	cyclictest	1262762	-21	kworker/u4:1+events_unbound	23:43:00	0
1106499	99	53	43,6	cyclictest	1201769	-21	kworker/u4:4-rpciod	22:28:52	0
1106499	99	53	37,6	cyclictest	1227843	-21	kworker/u4:3+events_unbound	23:30:02	0
1106500	99	52	44,6	cyclictest	1130819	-21	kworker/u4:4+events_unbound	21:08:02	1
1106500	99	52	43,5	cyclictest	0	-21	swapper/1	21:55:41	1
1106500	99	52	32,6	cyclictest	1262762	-21	kworker/u4:1+events_unbound	23:47:59	1
1106499	99	52	44,6	cyclictest	1292662	-21	unixbench_multi	00:05:42	0
1106499	99	52	44,6	cyclictest	1292662	-21	unixbench_multi	00:05:41	0
1106499	99	52	44,6	cyclictest	1283799	-21	/usr/sbin/munin	23:55:41	0
1106499	99	52	34,14	cyclictest	1199741	-21	diskmemload	22:20:21	0
1106500	99	51	45,4	cyclictest	1223384	-21	kworker/u4:14+events_unbound	22:47:01	1
1106500	99	51	43,6	cyclictest	1306710	-21	kworker/u4:10+events_unbound	00:23:26	1
1106500	99	51	43,6	cyclictest	1197290	-21	kworker/u4:1+events_unbound	22:20:03	1
1106500	99	51	42,7	cyclictest	378	-21	dbus-daemon	00:28:28	1
1106500	99	51	41,8	cyclictest	1105219	-21	kworker/u4:6+events_unbound	20:10:02	1
1106499	99	51	37,11	cyclictest	1137235	-21	cron	21:10:01	0
1106499	99	50	42,6	cyclictest	1296630	-21	ntpq	00:10:36	0
1106499	99	50	42,6	cyclictest	1296630	-21	ntpq	00:10:36	0
1106499	99	50	40,6	cyclictest	1168768	-21	aten_r7power_cu	21:45:16	0
1106500	99	49	41,6	cyclictest	1091408	-21	kworker/u4:20+events_unbound	21:05:01	1
1106500	99	49	40,7	cyclictest	1228640	-21	sd-accept	22:53:16	1
1106500	99	49	39,8	cyclictest	1283006	-21	fschecks_count	23:55:22	1
1106500	99	49	39,7	cyclictest	0	-21	swapper/1	23:20:25	1
1106500	99	49	3,35	cyclictest	1235340	-21	ssh	23:00:35	1
1106499	99	49	8,18	cyclictest	1159882	-21	ssh	21:35:10	0
1106499	99	49	41,5	cyclictest	1300412	-21	df_abs	00:15:18	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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