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 all highest latencies:

System rack7slot2.osadl.org (updated Sun Feb 22, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1271264	99	119	86,30	cyclictest	54	-21	kswapd0	00:20:08	0
1271264	99	106	97,6	cyclictest	1434652	-21	kworker/u4:14+events_unbound	23:48:30	0
1271264	99	105	98,5	cyclictest	1258879	-21	kworker/u4:18+events_unbound	20:57:48	0
1271264	99	101	81,5	cyclictest	1272568	-21	kworker/u4:8+events_unbound	21:27:58	0
1271264	99	87	65,15	cyclictest	54	-21	kswapd0	23:35:08	0
1271266	99	82	74,5	cyclictest	1383139	-21	kworker/u4:6+events_unbound	23:55:00	1
1271264	99	81	72,6	cyclictest	1335136	-21	kworker/u4:2+events_unbound	22:08:06	0
1271266	99	79	25,41	cyclictest	0	-21	swapper/1	22:10:21	1
1271266	99	78	3,47	cyclictest	1297104	-21	apt-get	20:50:12	1
1271266	99	77	21,44	cyclictest	388	-21	dbus-daemon	20:17:40	1
1271264	99	77	69,6	cyclictest	1271191	-21	kworker/u4:0+xprtiod	19:40:09	0
1271266	99	76	32,25	cyclictest	0	-21	swapper/1	22:05:01	1
1271264	99	75	4,23	cyclictest	1284135	-21	apt-get	20:00:11	0
1271264	99	74	67,5	cyclictest	1275108	-21	kworker/u4:14+events_unbound	19:37:34	0
1271264	99	74	63,6	cyclictest	1258879	-21	kworker/u4:18+events_unbound	21:32:58	0
1271266	99	73	31,29	cyclictest	0	-21	swapper/1	22:20:23	1
1271266	99	73	24,38	cyclictest	0	-21	swapper/1	23:20:01	1
1271264	99	73	59,11	cyclictest	1271261	-21	cyclictest	19:10:06	0
1271266	99	72	24,36	cyclictest	0	-21	swapper/1	00:35:22	1
1271266	99	71	4,40	cyclictest	1426136	-21	ssh	23:32:16	1
1271264	99	71	62,6	cyclictest	15	1	ktimers/0	22:16:53	0
1271266	99	70	20,27	cyclictest	0	-21	swapper/1	00:30:00	1
1271264	99	70	62,6	cyclictest	1361035	-21	kworker/u4:1+events_unbound	23:13:21	0
1271264	99	70	55,5	cyclictest	1404543	-21	kworker/u4:9+events_unbound	23:18:24	0
1271264	99	70	52,12	cyclictest	255	50	irq/23-42890000.ethernet	00:05:10	0
1271266	99	69	62,5	cyclictest	1275108	-21	kworker/u4:14+events_unbound	20:25:01	1
1271266	99	69	3,39	cyclictest	1456661	-21	ssh	00:07:28	1
1271266	99	69	3,39	cyclictest	1433937	-21	ssh	23:40:49	1
1271266	99	69	2,42	cyclictest	1369078	-21	ssh	22:25:57	1
1271266	99	68	59,6	cyclictest	1361036	-21	kworker/u4:2+events_unbound	23:05:00	1
1271266	99	68	2,42	cyclictest	1378758	-21	ssh	22:37:31	1
1271266	99	68	2,41	cyclictest	1422108	-21	ssh	23:27:39	1
1271266	99	68	2,41	cyclictest	1326844	-21	ssh	21:37:57	1
1271266	99	68	2,40	cyclictest	1477298	-21	ssh	00:31:12	1
1271266	99	68	2,40	cyclictest	1453239	-21	ssh	00:03:53	1
1271266	99	68	2,40	cyclictest	1395496	-21	ssh	22:56:32	1
1271266	99	68	2,39	cyclictest	1417809	-21	ssh	23:22:40	1
1271266	99	68	2,38	cyclictest	1466631	-21	ssh	00:19:48	1
1271266	99	67	2,42	cyclictest	1459943	-21	ssh	00:10:50	1
1271266	99	67	2,41	cyclictest	1431478	-21	ssh	23:38:52	1
1271266	99	67	2,40	cyclictest	1339336	-21	ssh	21:52:07	1
1271266	99	67	2,39	cyclictest	1362184	-21	ssh	22:18:48	1
1271266	99	67	2,39	cyclictest	1330059	-21	ssh	21:41:09	1
1271266	99	67	2,39	cyclictest	1312741	-21	ssh	21:21:11	1
1271266	99	67	2,38	cyclictest	1308819	-21	ssh	21:16:55	1
1271266	99	67	2,38	cyclictest	1308819	-21	ssh	21:16:55	1
1271266	99	67	21,28	cyclictest	1352188	-21	kworker/u4:16-rpciod	22:09:08	1
1271266	99	67	1,40	cyclictest	1343846	-21	ssh	21:57:22	1
1271264	99	67	59,6	cyclictest	1339537	-21	kworker/u4:0+events_unbound	22:13:06	0
1271264	99	67	41,22	cyclictest	54	-21	kswapd0	00:35:09	0
1271264	99	67	40,18	cyclictest	255	50	irq/23-42890000.ethernet	22:30:30	0
1271266	99	66	2,39	cyclictest	1470335	-21	ssh	00:23:48	1
1271266	99	66	2,39	cyclictest	1382996	-21	ssh	22:42:21	1
1271266	99	66	2,39	cyclictest	1335237	-21	ssh	21:47:27	1
1271266	99	66	2,39	cyclictest	1335237	-21	ssh	21:47:27	1
1271266	99	66	2,38	cyclictest	1306365	-21	ssh	21:14:57	1
1271266	99	66	2,38	cyclictest	1306365	-21	ssh	21:14:57	1
1271266	99	66	1,39	cyclictest	1436755	-21	ssh	23:45:04	1
1271264	99	66	59,4	cyclictest	1272569	-21	kworker/u4:9+events_unbound	19:30:01	0
1271264	99	66	2,27	cyclictest	1402288	-21	apt-get	23:05:14	0
1271266	99	65	2,39	cyclictest	1446979	-21	ssh	23:55:52	1
1271266	99	64	2,39	cyclictest	1279272	-21	apt-get	19:40:17	1
1271266	99	64	2,35	cyclictest	1386483	-21	ssh	22:45:58	1
1271264	99	64	57,5	cyclictest	1296905	-21	kworker/u4:1+events_unbound	21:17:52	0
1271264	99	64	57,5	cyclictest	1296905	-21	kworker/u4:1+events_unbound	21:17:52	0
1271264	99	64	1,44	cyclictest	1329195	-21	ssh	21:40:30	0
1271266	99	62	1,35	cyclictest	1298960	-21	ntpq	20:55:29	1
1271266	99	61	24,20	cyclictest	0	-21	swapper/1	22:50:30	1
1271264	99	61	53,6	cyclictest	1398118	-21	aten_r7power_po	23:00:15	0
1271266	99	60	4,51	cyclictest	1320515	-21	ssh	21:30:30	1
1271266	99	60	32,26	cyclictest	1406732	-21	ssh	23:10:17	1
1271266	99	60	32,24	cyclictest	0	-21	swapper/1	20:30:00	1
1271264	99	60	53,5	cyclictest	1376633	-21	fschecks_count	22:35:20	0
1271264	99	60	43,6	cyclictest	1339537	-21	kworker/u4:0+events_unbound	21:53:04	0
1271266	99	59	1,34	cyclictest	1405988	-21	ssh	23:09:28	1
1271266	99	58	2,51	cyclictest	1300279	-21	ntpq	21:00:32	1
1271266	99	58	2,34	cyclictest	1284405	-21	apt-get	20:00:16	1
1271264	99	58	38,18	cyclictest	1284152	-21	sendmail	20:00:00	0
1271266	99	57	48,7	cyclictest	1287972	-21	kworker/u4:10+events_unbound	20:47:46	1
1271266	99	57	3,49	cyclictest	1292625	-21	ntpq	20:30:28	1
1271266	99	57	33,22	cyclictest	1274982	-21	unixbench-2d	19:20:36	1
1271266	99	57	2,50	cyclictest	1301480	-21	ntpq	21:05:29	1
1271266	99	57	2,50	cyclictest	1301480	-21	ntpq	21:05:29	1
1271266	99	57	1,51	cyclictest	1283631	-21	ntpq	19:55:29	1
1271266	99	57	1,50	cyclictest	1293315	-21	apt-get	20:35:14	1
1271266	99	57	1,34	cyclictest	1278520	-21	ntpq	19:35:34	1
1271264	99	57	49,6	cyclictest	1343946	-21	kworker/u4:8+events_unbound	21:58:05	0
1271266	99	56	1,31	cyclictest	1317688	-21	ssh	21:27:09	1
1271266	99	56	1,30	cyclictest	1371917	-21	apt-get	22:30:12	1
1271266	99	55	3,47	cyclictest	1286230	-21	ntpq	20:05:27	1
1271264	99	55	5,43	cyclictest	54	-21	kswapd0	21:35:08	0
1271264	99	55	48,5	cyclictest	1444273	-21	sshd	23:53:30	0
1271264	99	55	35,17	cyclictest	1369867	-21	kworker/u4:0-rpciod	22:40:40	0
1271266	99	54	3,47	cyclictest	1282391	-21	ntpq	19:50:28	1
1271266	99	54	2,49	cyclictest	1273356	-21	ntpq	19:15:29	1
1271266	99	54	1,49	cyclictest	1275940	-21	ntpq	19:25:30	1
1271264	99	54	5,37	cyclictest	1416158	-21	ssh	23:20:35	0
1271266	99	53	1,31	cyclictest	1294595	-21	apt-get	20:40:14	1
1271264	99	53	44,7	cyclictest	388	-21	dbus-daemon	21:22:53	0
1271266	99	52	25,24	cyclictest	0	-21	swapper/1	19:45:21	1
1271266	99	52	2,47	cyclictest	1272150	-21	ntpq	19:10:37	1
1271264	99	52	7,40	cyclictest	0	-21	swapper/0	20:25:07	0
1271264	99	52	44,6	cyclictest	1286716	-21	kworker/u4:9+events_unbound	20:42:45	0
1271264	99	52	28,22	cyclictest	0	-21	swapper/0	23:55:21	0
1271264	99	52	2,47	cyclictest	1393622	-21	apt-get	22:55:12	0
1271264	99	51	44,5	cyclictest	1303443	-21	timerwakeupswit	21:10:39	0
1271264	99	51	44,5	cyclictest	1303443	-21	timerwakeupswit	21:10:39	0
1271266	99	50	27,21	cyclictest	1276757	-21	df_abs	19:30:15	1
1271264	99	50	42,5	cyclictest	1273834	-21	kworker/u4:11+events_unbound	19:20:02	0
1271264	99	50	41,7	cyclictest	1290703	-21	latency_hist	20:25:01	0
1271264	99	49	43,4	cyclictest	1424019	-21	aten_r7power_vo	23:30:17	0
1271264	99	49	41,6	cyclictest	54	-21	kswapd0	22:50:00	0
1271266	99	48	2,43	cyclictest	1287565	-21	ntpq	20:10:32	1
1271264	99	48	40,6	cyclictest	1389597	-21	fschecks_count	22:50:20	0
1271264	99	48	37,5	cyclictest	0	-21	swapper/0	00:15:25	0
1271264	99	47	38,7	cyclictest	1295946	-21	aten_r7power_po	20:45:15	0
1271264	99	46	39,4	cyclictest	1454125	-21	awk	00:05:01	0
1271264	99	46	38,6	cyclictest	1478772	-21	systemd	00:33:37	0
1271264	99	46	37,6	cyclictest	1298157	-21	sshd	20:52:30	0
1271264	99	46	35,9	cyclictest	1471803	-21	fschecks_time	00:25:22	0
1271264	99	46	26,18	cyclictest	1293110	-21	kworker/u4:5-rpciod	20:35:16	0
1271264	99	45	39,4	cyclictest	1436556	-21	cron	23:45:01	0
1271264	99	45	37,5	cyclictest	1277650	-21	kworker/u4:1	19:35:00	0
1271264	99	45	36,7	cyclictest	1363518	-21	df_abs	22:20:17	0
1271264	99	45	36,7	cyclictest	1301179	-21	fschecks_count	21:05:22	0
1271264	99	45	36,7	cyclictest	1301179	-21	fschecks_count	21:05:21	0
1271264	99	45	25,18	cyclictest	1286800	-21	latency_hist	20:10:01	0
1271264	99	45	2,34	cyclictest	1289275	-21	latency_hist	20:20:01	0
1271266	99	44	23,18	cyclictest	0	-21	swapper/1	19:10:01	1
1271264	99	44	36,5	cyclictest	255	50	irq/23-42890000.ethernet	23:25:18	0
1271264	99	44	35,7	cyclictest	1456081	-21	kworker/u4:6+events_unbound	00:13:04	0
1271264	99	44	35,7	cyclictest	1280599	-21	aten_r7power_en	19:45:15	0
1271264	99	44	23,19	cyclictest	1292316	-21	fschecks_count	20:30:20	0
1271264	99	43	37,4	cyclictest	1346429	-21	sed	22:00:23	0
1271264	99	43	36,5	cyclictest	1299831	-21	df_abs	21:00:16	0
1271264	99	43	35,6	cyclictest	1333771	-21	mailstats	21:45:37	0
1271264	99	43	35,6	cyclictest	1333771	-21	mailstats	21:45:37	0
1271264	99	43	34,7	cyclictest	1367823	-21	df_abs	22:25:17	0
1271264	99	42	33,6	cyclictest	1287105	-21	df	20:10:16	0
1271264	99	42	10,22	cyclictest	1271265	-21	kworker/u4:4	19:10:00	0
1271264	99	40	31,6	cyclictest	1272569	-21	kworker/u4:9+events_unbound	19:15:03	0
1271264	99	36	28,6	cyclictest	0	-21	swapper/0	19:50:14	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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