OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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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 376 highest latencies:

System rack7slot2.osadl.org (updated Mon Apr 20, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1314082	99	104	69,25	cyclictest	53	-21	kswapd0	11:45:07	0
1314083	99	92	86,4	cyclictest	1334581	-21	kworker/u4:1+events_unbound	08:50:11	1
1314082	99	90	82,6	cyclictest	1335945	-21	kworker/u4:15+events_unbound	08:55:16	0
1314083	99	86	79,5	cyclictest	1501463	-21	kworker/u4:6+events_unbound	12:31:00	1
1314083	99	85	77,5	cyclictest	1343619	-21	kworker/u4:6+events_unbound	09:10:02	1
1314083	99	85	74,9	cyclictest	1335944	-21	kworker/u4:12+events_unbound	09:00:20	1
1314083	99	81	73,6	cyclictest	1427413	-21	kworker/u4:1+events_unbound	10:45:49	1
1314083	99	80	61,7	cyclictest	1323089	-21	kworker/u4:16+events_unbound	08:00:00	1
1314082	99	80	32,44	cyclictest	0	-21	swapper/0	09:55:37	0
1314083	99	78	70,6	cyclictest	1501464	-21	kworker/u4:7+events_unbound	12:15:59	1
1314083	99	78	70,5	cyclictest	1413972	-21	kworker/u4:3+events_unbound	10:35:42	1
1314082	99	77	28,5	cyclictest	1407087	-21	sendmail	10:20:00	0
1314083	99	74	66,6	cyclictest	1317885	-21	kworker/u4:2+events_unbound	08:45:08	1
1314082	99	74	31,39	cyclictest	1417286	-21	switchtime	10:30:36	0
1314082	99	73	41,29	cyclictest	1504785	-21	unixbench_multi	12:10:39	0
1314082	99	73	29,5	cyclictest	1522030	-21	sendmail_mailtr	12:30:38	0
1314083	99	72	65,5	cyclictest	1460363	-21	fschecks_count	11:20:20	1
1314082	99	72	63,7	cyclictest	1378530	-21	kworker/u4:0+events_unbound	09:50:35	0
1314082	99	71	27,39	cyclictest	0	-21	swapper/0	12:35:38	0
1314082	99	70	33,35	cyclictest	1486182	-21	aten_r7power_cu	11:50:16	0
1314082	99	70	32,34	cyclictest	1439476	-21	unixbench_singl	10:55:41	0
1314082	99	70	32,34	cyclictest	0	-21	swapper/0	11:45:01	0
1314082	99	69	60,6	cyclictest	1335945	-21	kworker/u4:15+events_unbound	08:45:01	0
1314082	99	69	30,35	cyclictest	0	-21	swapper/0	11:05:26	0
1314082	99	69	28,37	cyclictest	0	-21	swapper/0	09:40:38	0
1314083	99	68	61,5	cyclictest	1457834	-21	kworker/u4:5+events_unbound	11:50:57	1
1314082	99	68	59,6	cyclictest	1093095	-21	kworker/u4:7+events_unbound	08:25:01	0
1314082	99	68	32,32	cyclictest	0	-21	swapper/0	11:00:30	0
1314082	99	68	29,8	cyclictest	1365006	-21	kworker/u4:3+rpciod	09:45:41	0
1314082	99	68	28,37	cyclictest	0	-21	swapper/0	07:45:17	0
1314082	99	67	58,7	cyclictest	53	-21	kswapd0	10:35:08	0
1314082	99	67	58,6	cyclictest	1497059	-21	kworker/u4:8+events_unbound	12:21:01	0
1314082	99	67	35,28	cyclictest	0	-21	swapper/0	11:10:32	0
1314082	99	67	34,30	cyclictest	1494492	-21	cron	12:00:00	0
1314082	99	67	32,33	cyclictest	1434140	-21	fschecks_count	10:50:19	0
1314082	99	67	31,33	cyclictest	1346229	-21	processes	09:10:39	0
1314082	99	67	29,35	cyclictest	0	-21	swapper/0	12:05:23	0
1314082	99	67	29,35	cyclictest	0	-21	swapper/0	07:50:16	0
1314083	99	66	58,6	cyclictest	1320517	-21	kworker/u4:1+events_unbound	07:34:43	1
1314082	99	66	59,5	cyclictest	1321786	-21	kworker/u4:9+events_unbound	08:40:00	0
1314082	99	66	55,8	cyclictest	1510234	-21	ssh	12:17:15	0
1314082	99	66	31,32	cyclictest	0	-21	swapper/0	11:35:35	0
1314082	99	66	26,37	cyclictest	1430595	-21	switchtime	10:45:43	0
1314082	99	65	38,25	cyclictest	1401044	-21	kworker/u4:5-rpciod	10:20:40	0
1314083	99	64	57,5	cyclictest	1314079	-21	cyclictest	09:45:22	1
1314083	99	64	45,6	cyclictest	1422945	-21	kworker/u4:13+events_unbound	10:40:43	1
1314082	99	64	28,4	cyclictest	0	-21	swapper/0	09:15:28	0
1314082	99	64	24,6	cyclictest	0	-21	swapper/0	08:10:19	0
1314083	99	63	47,13	cyclictest	1332218	-21	systemd	08:20:03	1
1314082	99	63	30,30	cyclictest	1363180	-21	/usr/sbin/munin	09:30:18	0
1314082	99	63	30,29	cyclictest	1315537	-21	aten2__	07:15:14	0
1314082	99	63	28,6	cyclictest	0	-21	swapper/0	11:20:36	0
1314082	99	63	24,36	cyclictest	0	-21	swapper/0	08:25:35	0
1314082	99	63	17,3	cyclictest	0	-21	swapper/0	08:20:00	0
1314082	99	63	1,31	cyclictest	0	-21	swapper/0	08:30:10	0
1314083	99	62	54,6	cyclictest	1501461	-21	kworker/u4:4+events_unbound	12:08:58	1
1314083	99	62	49,10	cyclictest	1324365	-21	systemd	07:49:45	1
1314083	99	62	46,10	cyclictest	0	-21	swapper/1	10:25:25	1
1314082	99	62	29,4	cyclictest	0	-21	swapper/0	10:25:40	0
1314082	99	62	27,7	cyclictest	1464615	-21	df_abs	11:25:16	0
1314082	99	62	25,4	cyclictest	0	-21	swapper/0	07:20:17	0
1314083	99	61	46,10	cyclictest	1344923	-21	diskmemload	09:20:26	1
1314082	99	61	28,5	cyclictest	1517399	-21	rm	12:25:29	0
1314082	99	61	28,5	cyclictest	0	-21	swapper/0	12:00:27	0
1314082	99	61	28,5	cyclictest	0	-21	swapper/0	12:00:27	0
1314082	99	61	26,5	cyclictest	0	-21	swapper/0	07:25:22	0
1314082	99	61	25,6	cyclictest	0	-21	swapper/0	09:20:40	0
1314082	99	61	25,4	cyclictest	0	-21	swapper/0	11:15:23	0
1314082	99	61	24,7	cyclictest	1344784	-21	grep	09:05:39	0
1314082	99	60	25,5	cyclictest	0	-21	swapper/0	07:30:30	0
1314082	99	60	21,9	cyclictest	483	-21	weston-desktop-	09:37:58	0
1314082	99	59	25,5	cyclictest	1422945	-21	kworker/u4:13-rpciod	10:40:34	0
1314083	99	58	51,5	cyclictest	1392092	-21	kworker/u4:17+events_unbound	10:05:01	1
1314083	99	58	50,6	cyclictest	1440708	-21	kworker/u4:23+events_unbound	11:05:02	1
1314083	99	58	50,6	cyclictest	1344891	-21	kworker/u4:11+events_unbound	09:17:01	1
1314083	99	58	47,8	cyclictest	378	-21	dbus-daemon	12:26:00	1
1314083	99	58	41,12	cyclictest	0	-21	swapper/1	11:15:27	1
1314083	99	58	38,16	cyclictest	0	-21	swapper/1	11:55:12	1
1314083	99	58	13,41	cyclictest	1465176	-21	ssh	11:25:31	1
1314082	99	58	28,7	cyclictest	1470150	-21	sd-accept	11:30:52	0
1314082	99	58	26,6	cyclictest	0	-21	swapper/0	10:10:38	0
1314082	99	58	25,6	cyclictest	0	-21	swapper/0	10:00:26	0
1314082	99	58	25,5	cyclictest	0	-21	swapper/0	07:10:15	0
1314082	99	57	24,6	cyclictest	1359064	-21	/usr/sbin/munin	09:25:22	0
1314083	99	55	46,6	cyclictest	1394468	-21	gltestperf	10:05:22	1
1314083	99	55	39,12	cyclictest	1344923	-21	diskmemload	10:24:26	1
1314083	99	54	46,6	cyclictest	1481842	-21	aten2__	11:45:21	1
1314083	99	54	43,8	cyclictest	53	-21	kswapd0	10:20:01	1
1314083	99	54	42,9	cyclictest	1402743	-21	sed	10:15:02	1
1314083	99	54	41,9	cyclictest	0	-21	swapper/1	12:35:40	1
1314083	99	54	36,5	cyclictest	1321787	-21	kworker/u4:10+events_unbound	07:40:00	1
1314083	99	52	44,6	cyclictest	1478051	-21	/usr/sbin/munin	11:40:25	1
1314083	99	52	43,6	cyclictest	1325636	-21	systemd	07:54:48	1
1314083	99	52	43,5	cyclictest	0	-21	swapper/1	09:40:31	1
1314083	99	52	39,10	cyclictest	0	-21	swapper/1	11:00:28	1
1314083	99	51	42,6	cyclictest	1475511	-21	kworker/u4:12+events_unbound	11:40:00	1
1314083	99	51	40,8	cyclictest	315	-21	systemd-journal	10:30:41	1
1314083	99	50	42,5	cyclictest	1338179	-21	sendmail_mailqu	08:40:39	1
1314083	99	50	38,7	cyclictest	0	-21	swapper/1	12:10:30	1
1314083	99	49	42,5	cyclictest	1329466	-21	kworker/u4:21+events_unbound	08:10:01	1
1314082	99	49	42,5	cyclictest	1287558	-21	kworker/u4:6+events_unbound	08:09:58	0
1314083	99	48	9,34	cyclictest	1344923	-21	diskmemload	10:55:28	1
1314083	99	48	38,7	cyclictest	1343619	-21	kworker/u4:6-rpciod	09:25:21	1
1314083	99	48	38,7	cyclictest	0	-21	swapper/1	09:35:27	1
1314082	99	48	35,10	cyclictest	1394383	-21	fschecks_count	10:05:21	0
1314083	99	47	39,6	cyclictest	1321786	-21	kworker/u4:9+events_unbound	09:30:37	1
1314083	99	47	37,7	cyclictest	1344050	-21	systemd	09:05:19	1
1314083	99	47	31,8	cyclictest	1381718	-21	ssh	09:50:38	1
1314082	99	47	25,20	cyclictest	1340278	-21	fschecks_time	08:50:20	0
1314083	99	46	40,4	cyclictest	1315821	-21	fschecks_time	07:15:19	1
1314083	99	46	37,6	cyclictest	1451308	-21	cut	11:10:16	1
1314083	99	46	36,7	cyclictest	1383053	-21	kworker/u4:4+events_unbound	09:55:20	1
1314082	99	46	39,5	cyclictest	1326943	-21	munin-run	08:00:00	0
1314083	99	45	38,5	cyclictest	1335136	-21	grep	08:30:23	1
1314083	99	45	33,8	cyclictest	0	-21	swapper/1	08:55:23	1
1314083	99	44	37,5	cyclictest	1304265	-21	kworker/u4:5+events_unbound	08:05:01	1
1314083	99	44	35,6	cyclictest	1317249	-21	sed	07:20:21	1
1314083	99	44	33,8	cyclictest	1466708	-21	kworker/u4:3+events_unbound	11:30:14	1
1314083	99	44	33,8	cyclictest	0	-21	swapper/1	12:20:26	1
1314083	99	43	32,7	cyclictest	0	-21	swapper/1	07:25:37	1
1314083	99	43	31,9	cyclictest	0	-21	swapper/1	08:25:21	1
1314082	99	43	1,38	cyclictest	1343037	-21	kernelversion	09:00:19	0
1314083	99	42	33,6	cyclictest	0	-21	swapper/1	12:00:33	1
1314083	99	42	33,6	cyclictest	0	-21	swapper/1	12:00:33	1
1314083	99	42	33,6	cyclictest	0	-21	swapper/1	10:50:39	1
1314083	99	42	23,7	cyclictest	1334584	-21	kworker/u4:6+events_unbound	08:35:24	1
1314082	99	41	33,6	cyclictest	1322080	-21	aten_r7power_en	07:40:17	0
1314082	99	41	33,6	cyclictest	1322080	-21	aten_r7power_en	07:40:17	0
1314082	99	41	33,6	cyclictest	1321032	-21	fschecks_time	07:35:19	0
1314083	99	40	32,6	cyclictest	1316587	-21	kworker/u4:14+rpciod	08:15:36	1
1314083	99	40	28,9	cyclictest	0	-21	swapper/1	08:10:38	1
1314082	99	40	30,8	cyclictest	1339129	-21	head	08:45:21	0
1314083	99	39	27,8	cyclictest	0	-21	swapper/1	07:40:18	1
1314083	99	39	27,8	cyclictest	0	-21	swapper/1	07:40:17	1
1314082	99	37	30,5	cyclictest	1327449	-21	fschecks_time	08:00:19	0
1314083	99	35	27,6	cyclictest	1314119	-21	latency_hist	07:10:01	1
1314083	99	34	25,6	cyclictest	0	-21	swapper/1	07:10:18	1
1314082	99	32	25,5	cyclictest	0	-21	swapper/0	07:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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