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 Jul 13, 2025 00:44:05)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1289616	99	115	98,7	cyclictest	1367318	-21	kworker/u4:3+events_unbound	22:13:27	0
1289616	99	111	96,11	cyclictest	54	-21	kswapd0	22:55:06	0
1289616	99	100	91,7	cyclictest	1447649	-21	kworker/u4:4+events_unbound	00:03:47	0
1289617	99	97	89,6	cyclictest	1348495	-21	kworker/u4:9+events_unbound	22:05:37	1
1289616	99	97	89,6	cyclictest	1371047	-21	kworker/u4:0+events_unbound	22:43:34	0
1289616	99	95	88,5	cyclictest	1409256	-21	kworker/u4:9+events_unbound	23:28:43	0
1289617	99	93	79,8	cyclictest	1413260	-21	kworker/u4:0+events_unbound	23:38:42	1
1289616	99	93	86,5	cyclictest	1298524	-21	kworker/u4:6+events_unbound	19:47:55	0
1289616	99	93	86,5	cyclictest	1294692	-21	kworker/u4:4+events_unbound	19:57:57	0
1289616	99	93	85,6	cyclictest	1405258	-21	kworker/u4:6+events_unbound	23:03:38	0
1289616	99	92	84,6	cyclictest	1302335	-21	kworker/u4:5+events_unbound	20:08:00	0
1289616	99	88	80,6	cyclictest	1443826	-21	kworker/u4:1+events_unbound	23:53:45	0
1289617	99	85	77,6	cyclictest	1447650	-21	kworker/u4:5+events_unbound	00:13:51	1
1289617	99	85	65,7	cyclictest	1397449	-21	kworker/u4:5+events_unbound	22:55:00	1
1289617	99	83	64,5	cyclictest	1436248	-21	kworker/u4:14+events_unbound	23:45:25	1
1289617	99	81	71,8	cyclictest	1381926	-21	kworker/u4:12+events_unbound	22:45:13	1
1289616	99	81	74,5	cyclictest	1315296	-21	kworker/u4:3+events_unbound	20:53:11	0
1289616	99	81	74,5	cyclictest	1310192	-21	kworker/u4:2+events_unbound	20:48:10	0
1289616	99	81	73,6	cyclictest	1417277	-21	kworker/u4:2+events_unbound	23:18:40	0
1289617	99	80	68,5	cyclictest	1424792	-21	kworker/u4:2+events_unbound	23:33:44	1
1289617	99	79	71,6	cyclictest	54	-21	kswapd0	23:45:00	1
1289616	99	79	71,6	cyclictest	1303721	-21	kworker/u4:18+events_unbound	20:23:03	0
1289616	99	78	70,6	cyclictest	1294693	-21	kworker/u4:13+events_unbound	19:35:03	0
1289617	99	77	70,5	cyclictest	1352685	-21	kworker/u4:1+events_unbound	22:18:28	1
1289617	99	76	69,5	cyclictest	1337669	-21	kworker/u4:0+events_unbound	21:33:18	1
1289617	99	76	63,6	cyclictest	1413260	-21	kworker/u4:0+events_unbound	23:13:39	1
1289617	99	75	67,6	cyclictest	1294693	-21	kworker/u4:13+events_unbound	19:35:01	1
1289617	99	74	66,6	cyclictest	1303720	-21	kworker/u4:17+events_unbound	20:03:00	1
1289616	99	74	69,3	cyclictest	1303716	-21	kworker/u4:9+events_unbound	20:58:11	0
1289616	99	74	65,7	cyclictest	1330380	-21	kworker/u4:10+events_unbound	21:30:01	0
1289617	99	73	66,5	cyclictest	1310192	-21	kworker/u4:2+events_unbound	20:35:01	1
1289616	99	73	66,5	cyclictest	1345333	-21	kworker/u4:8+events_unbound	21:43:22	0
1289617	99	72	66,4	cyclictest	1298524	-21	kworker/u4:6+events_unbound	21:28:18	1
1289617	99	72	65,5	cyclictest	1378611	-21	kworker/u4:9+events_unbound	22:38:33	1
1289616	99	72	64,6	cyclictest	1409256	-21	kworker/u4:9+events_unbound	23:08:37	0
1289616	99	72	64,6	cyclictest	1330380	-21	kworker/u4:10+events_unbound	21:38:20	0
1289616	99	71	63,6	cyclictest	1281042	-21	kworker/u4:0+events_unbound	19:12:51	0
1289617	99	70	63,5	cyclictest	54	-21	kswapd0	21:35:15	1
1289617	99	70	63,5	cyclictest	1326374	-21	kworker/u4:1+events_unbound	21:18:16	1
1289617	99	70	62,6	cyclictest	1330380	-21	kworker/u4:10+events_unbound	21:55:00	1
1289616	99	70	62,6	cyclictest	1413260	-21	kworker/u4:0+events_unbound	23:38:44	0
1289616	99	70	43,15	cyclictest	1455074	-21	kworker/u4:6+events_unbound	00:20:03	0
1289617	99	69	5,49	cyclictest	1358727	-21	ssh	22:00:31	1
1289617	99	69	45,10	cyclictest	1462386	-21	kworker/u4:3+events_unbound	00:25:01	1
1289616	99	69	62,5	cyclictest	1294692	-21	kworker/u4:4+events_unbound	20:00:02	0
1289617	99	68	61,5	cyclictest	1440035	-21	kworker/u4:3+events_unbound	00:08:49	1
1289616	99	68	60,6	cyclictest	1447650	-21	kworker/u4:5+events_unbound	00:05:03	0
1289617	99	67	3,56	cyclictest	1415679	-21	sh	23:15:26	1
1289617	99	66	59,5	cyclictest	1302335	-21	kworker/u4:5+events_unbound	20:45:00	1
1289617	99	66	51,6	cyclictest	1262541	-21	kworker/u4:1+events_unbound	20:13:01	1
1289617	99	66	49,6	cyclictest	1294692	-21	kworker/u4:4+events_unbound	20:18:02	1
1289617	99	66	48,7	cyclictest	1401212	-21	kworker/u4:0+events_unbound	23:01:59	1
1289616	99	66	60,4	cyclictest	15	1	ktimers/0	00:36:57	0
1289616	99	65	58,5	cyclictest	1298524	-21	kworker/u4:6+events_unbound	20:33:06	0
1289616	99	65	47,6	cyclictest	1378612	-21	kworker/u4:10+events_unbound	22:33:29	0
1289617	99	63	56,5	cyclictest	1330380	-21	kworker/u4:10+events_unbound	21:40:23	1
1289617	99	63	56,5	cyclictest	1316566	-21	kworker/u4:12+events_unbound	22:10:02	1
1289616	99	63	56,5	cyclictest	1292126	-21	kworker/u4:6+events_unbound	19:25:02	0
1289616	99	61	54,5	cyclictest	1326374	-21	kworker/u4:1+events_unbound	21:17:02	0
1289616	99	61	51,7	cyclictest	1448352	-21	ssh	23:58:37	0
1289617	99	60	53,5	cyclictest	1348495	-21	kworker/u4:9+events_unbound	21:48:21	1
1289616	99	60	38,6	cyclictest	1381926	-21	kworker/u4:12+events_unbound	22:54:01	0
1289617	99	59	5,46	cyclictest	1354959	-21	ssh	21:55:37	1
1289617	99	59	52,5	cyclictest	1290838	-21	kworker/u4:9+events_unbound	19:15:02	1
1289617	99	59	52,5	cyclictest	1048	-21	sshd	23:53:45	1
1289617	99	59	51,6	cyclictest	1290837	-21	kworker/u4:8+events_unbound	19:27:51	1
1289617	99	59	45,5	cyclictest	1294692	-21	kworker/u4:4+events_unbound	19:55:01	1
1289617	99	58	51,5	cyclictest	1474996	-21	kworker/u4:7+events_unbound	00:40:02	1
1289616	99	58	49,6	cyclictest	1369329	-21	/usr/sbin/munin	22:15:20	0
1289616	99	58	47,7	cyclictest	1461517	-21	sed	00:15:45	0
1289616	99	56	47,7	cyclictest	1377431	-21	/usr/sbin/munin	22:25:41	0
1289616	99	56	43,10	cyclictest	1467344	-21	fschecks_time	00:25:20	0
1289617	99	55	49,5	cyclictest	1468664	-21	kworker/u4:15+events_unbound	00:35:01	1
1289617	99	55	48,5	cyclictest	1419487	-21	fschecks_time	23:20:21	1
1289617	99	55	46,6	cyclictest	0	-21	swapper/1	22:40:13	1
1289617	99	55	30,6	cyclictest	1308922	-21	kworker/u4:3+events_unbound	20:27:01	1
1289616	99	55	48,5	cyclictest	1348495	-21	kworker/u4:9+events_unbound	21:47:00	0
1289616	99	55	44,7	cyclictest	1292150	-21	modprobe	19:20:00	0
1289617	99	54	48,4	cyclictest	1468663	-21	kworker/u4:14+events_unbound	00:30:01	1
1289616	99	54	29,9	cyclictest	19	1	rcuc/0	23:45:31	0
1289616	99	53	46,5	cyclictest	1367318	-21	kworker/u4:3+events_unbound	22:20:38	0
1289616	99	53	46,5	cyclictest	1290841	-21	kworker/u4:12+events_unbound	19:50:02	0
1289616	99	53	45,6	cyclictest	1401215	-21	kworker/u4:3+events_unbound	23:21:02	0
1289616	99	53	45,5	cyclictest	1363620	-21	kworker/u4:17+events_unbound	22:08:25	0
1289616	99	53	35,9	cyclictest	0	-21	swapper/0	00:10:27	0
1289617	99	52	44,6	cyclictest	1322528	-21	kworker/u4:20+events_unbound	21:13:14	1
1289617	99	52	44,6	cyclictest	1322528	-21	kworker/u4:20+events_unbound	21:13:14	1
1289617	99	52	37,6	cyclictest	1290834	-21	kworker/u4:3+events_unbound	19:25:00	1
1289616	99	52	45,5	cyclictest	1262541	-21	kworker/u4:1+events_unbound	20:28:02	0
1289616	99	52	44,6	cyclictest	1329512	-21	sh	21:20:40	0
1289616	99	52	32,17	cyclictest	0	-21	swapper/0	21:15:01	0
1289616	99	52	32,17	cyclictest	0	-21	swapper/0	21:15:01	0
1289617	99	51	43,6	cyclictest	1292127	-21	kworker/u4:10+events_unbound	19:37:55	1
1289617	99	51	36,4	cyclictest	1397449	-21	kworker/u4:5+events_unbound	23:05:59	1
1289616	99	51	34,7	cyclictest	1428775	-21	kworker/u4:8+events_unbound	23:43:26	0
1289617	99	50	44,4	cyclictest	1318325	-21	cut	21:00:22	1
1289617	99	50	31,5	cyclictest	1367318	-21	kworker/u4:3+events_unbound	22:32:00	1
1289616	99	50	43,5	cyclictest	1281042	-21	kworker/u4:0+events_unbound	19:20:03	0
1289616	99	50	42,6	cyclictest	1427796	-21	ntpq	23:30:37	0
1289616	99	50	42,6	cyclictest	1352687	-21	kworker/u4:3+events_unbound	22:00:00	0
1289616	99	50	42,5	cyclictest	1411717	-21	/usr/sbin/munin	23:10:23	0
1289617	99	49	42,5	cyclictest	1424158	-21	timerandwakeup	23:25:43	1
1289617	99	49	42,5	cyclictest	1297742	-21	fschecks_count	19:40:23	1
1289617	99	49	42,5	cyclictest	1290004	-21	grep	19:10:21	1
1289616	99	49	5,33	cyclictest	1384772	-21	ssh	22:35:30	0
1289616	99	49	42,5	cyclictest	1326377	-21	kworker/u4:4+events_unbound	21:30:04	0
1289617	99	48	42,4	cyclictest	1446507	-21	proc_pri	23:55:38	1
1289617	99	48	38,8	cyclictest	1332043	-21	latency_hist	21:25:02	1
1289616	99	48	41,5	cyclictest	1330380	-21	kworker/u4:10+events_unbound	22:04:59	0
1289616	99	48	40,5	cyclictest	1470777	-21	/usr/sbin/munin	00:30:26	0
1289616	99	48	34,5	cyclictest	1294693	-21	kworker/u4:13+events_unbound	19:34:01	0
1289616	99	48	32,6	cyclictest	1311459	-21	kworker/u4:10+events_unbound	21:04:59	0
1289616	99	48	27,18	cyclictest	0	-21	swapper/0	20:40:37	0
1289616	99	48	25,8	cyclictest	1298524	-21	kworker/u4:6-rpciod	20:15:34	0
1289617	99	47	37,8	cyclictest	1450577	-21	unixbench_singl	00:00:42	1
1289617	99	47	35,10	cyclictest	1460898	-21	if_eth0	00:15:25	1
1289616	99	47	33,5	cyclictest	1389789	-21	kworker/u4:15+events_unbound	22:48:30	0
1289616	99	46	27,11	cyclictest	1350414	-21	ssh	21:50:09	0
1289617	99	45	36,7	cyclictest	1302335	-21	kworker/u4:5+rpciod	20:45:40	1
1289617	99	45	35,8	cyclictest	1300802	-21	switchtime	19:50:38	1
1289617	99	45	24,6	cyclictest	1289544	-21	kworker/u4:7+events_unbound	20:20:24	1
1289616	99	45	36,7	cyclictest	1312816	-21	latency_hist	20:40:01	0
1289617	99	44	36,6	cyclictest	1373842	-21	mailstats	22:20:42	1
1289617	99	44	34,7	cyclictest	1400493	-21	unixbench-2d	22:55:45	1
1289616	99	44	36,5	cyclictest	1311459	-21	kworker/u4:10+events_unbound	21:06:00	0
1289616	99	44	34,6	cyclictest	0	-21	swapper/0	20:10:19	0
1289617	99	43	35,6	cyclictest	1376959	-21	fschecks_time	22:25:25	1
1289616	99	43	29,10	cyclictest	0	-21	swapper/0	19:40:41	0
1289617	99	40	32,6	cyclictest	1302334	-21	kworker/u4:0+events_unbound	21:08:13	1
1289617	99	40	30,8	cyclictest	1311753	-21	aten_r7power_po	20:35:17	1
1289617	99	40	30,7	cyclictest	0	-21	swapper/1	21:00:00	1
1289617	99	40	30,7	cyclictest	0	-21	swapper/1	19:47:54	1
1289617	99	40	23,8	cyclictest	1310192	-21	kworker/u4:2+events_unbound	20:50:23	1
1289617	99	36	26,7	cyclictest	0	-21	swapper/1	20:05:22	1
1289616	99	34	24,8	cyclictest	0	-21	swapper/0	19:10:00	0
1289617	99	32	23,7	cyclictest	0	-21	swapper/1	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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