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 100 highest latencies:

System rack7slot2.osadl.org (updated Mon May 18, 2026 12:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1202058	99	127	89,31	cyclictest	1317627	-21	kworker/u4:7+events_unbound	10:57:17	1
1202058	99	101	93,5	cyclictest	1204640	-21	kworker/u4:10+events_unbound	08:10:00	1
1202058	99	101	93,5	cyclictest	1204640	-21	kworker/u4:10+events_unbound	08:10:00	1
1202058	99	96	88,5	cyclictest	1308893	-21	kworker/u4:10+events_unbound	10:45:33	1
1202057	99	95	87,6	cyclictest	1247942	-21	kworker/u4:4+events_unbound	09:35:20	0
1202057	99	95	86,6	cyclictest	1308893	-21	kworker/u4:10+events_unbound	11:05:40	0
1202057	99	91	81,7	cyclictest	1324127	-21	ssh	10:53:37	0
1202057	99	91	81,7	cyclictest	1324127	-21	ssh	10:53:36	0
1202058	99	90	76,7	cyclictest	1221303	-21	kworker/u4:8+events_unbound	08:25:10	1
1202057	99	88	80,6	cyclictest	1205951	-21	kworker/u4:12+events_unbound	09:05:17	0
1202057	99	88	80,6	cyclictest	1205951	-21	kworker/u4:12+events_unbound	09:05:16	0
1202057	99	87	72,11	cyclictest	53	-21	kswapd0	12:20:09	0
1202057	99	82	48,29	cyclictest	0	-21	swapper/0	10:48:36	0
1202057	99	77	45,29	cyclictest	1281571	-21	memory	10:05:23	0
1202057	99	76	63,8	cyclictest	0	-21	swapper/0	09:55:29	0
1202057	99	72	58,9	cyclictest	1295266	-21	unixbench_singl	10:20:40	0
1202057	99	72	4,13	cyclictest	1202054	-21	cyclictest	07:10:01	0
1202057	99	71	22,45	cyclictest	1307898	-21	sed	10:35:38	0
1202057	99	70	61,7	cyclictest	1327076	-21	ssh	10:56:56	0
1202057	99	70	34,33	cyclictest	0	-21	swapper/0	10:30:27	0
1202057	99	69	60,6	cyclictest	1357595	-21	kworker/u4:0+events_unbound	11:45:50	0
1202057	99	69	55,11	cyclictest	37	-21	kcompactd0	10:01:40	0
1202057	99	69	35,31	cyclictest	1360382	-21	/usr/sbin/munin	11:35:22	0
1202057	99	69	2,61	cyclictest	1351647	-21	ntpq	11:25:24	0
1202057	99	68	60,6	cyclictest	1204641	-21	kworker/u4:11+events_unbound	07:59:58	0
1202057	99	68	35,29	cyclictest	0	-21	swapper/0	10:10:33	0
1202057	99	68	30,34	cyclictest	0	-21	swapper/0	12:25:27	0
1202057	99	68	2,64	cyclictest	15	1	ktimers/0	08:55:38	0
1202058	99	67	61,4	cyclictest	1218715	-21	kworker/u4:4+events_unbound	08:17:01	1
1202057	99	67	47,17	cyclictest	1338736	-21	grep	11:10:37	0
1202057	99	67	34,29	cyclictest	0	-21	swapper/0	11:50:33	0
1202057	99	67	30,33	cyclictest	0	-21	swapper/0	08:10:00	0
1202057	99	67	30,33	cyclictest	0	-21	swapper/0	08:10:00	0
1202057	99	66	38,25	cyclictest	1237453	-21	dpkg	09:15:02	0
1202057	99	66	32,30	cyclictest	0	-21	swapper/0	09:50:30	0
1202057	99	66	32,30	cyclictest	0	-21	swapper/0	07:45:37	0
1202057	99	66	2,20	cyclictest	1398037	-21	ssh	12:18:02	0
1202057	99	65	3,16	cyclictest	1382705	-21	ssh	12:00:29	0
1202057	99	65	29,32	cyclictest	0	-21	swapper/0	09:40:20	0
1202057	99	65	28,34	cyclictest	0	-21	swapper/0	08:30:39	0
1202057	99	65	25,37	cyclictest	1298210	-21	/usr/sbin/munin	10:25:23	0
1202057	99	64	4,25	cyclictest	1388924	-21	ssh	12:07:34	0
1202057	99	64	27,34	cyclictest	0	-21	swapper/0	09:30:40	0
1202057	99	64	25,35	cyclictest	0	-21	swapper/0	09:10:39	0
1202057	99	64	21,40	cyclictest	1290786	-21	sh	10:15:44	0
1202057	99	64	1,15	cyclictest	1364219	-21	apt-get	11:40:10	0
1202057	99	63	6,17	cyclictest	1208513	-21	modprobe	07:35:00	0
1202057	99	63	6,17	cyclictest	1208513	-21	modprobe	07:34:59	0
1202057	99	63	3,16	cyclictest	1311807	-21	ntpq	10:40:25	0
1202057	99	63	1,4	cyclictest	1329647	-21	ssh	11:00:31	0
1202057	99	62	3,17	cyclictest	1412930	-21	/usr/sbin/munin	12:35:14	0
1202057	99	62	29,29	cyclictest	0	-21	swapper/0	09:20:18	0
1202057	99	62	28,30	cyclictest	0	-21	swapper/0	12:10:21	0
1202057	99	62	28,30	cyclictest	0	-21	swapper/0	12:10:21	0
1202057	99	62	27,31	cyclictest	0	-21	swapper/0	07:50:25	0
1202057	99	62	24,36	cyclictest	1217683	-21	aten_r7power_cu	08:10:18	0
1202057	99	61	5,22	cyclictest	1343055	-21	ntp_states	11:15:37	0
1202057	99	61	44,14	cyclictest	1198335	-21	kworker/u4:8+events_unbound	07:10:41	0
1202057	99	61	27,32	cyclictest	1246686	-21	gltestperf	09:25:20	0
1202057	99	61	27,31	cyclictest	1220474	-21	fschecks_count	08:20:19	0
1202057	99	61	1,10	cyclictest	1377733	-21	cpu	11:55:17	0
1202058	99	60	46,6	cyclictest	1335861	-21	kworker/u4:2+events_unbound	11:19:00	1
1202058	99	60	40,6	cyclictest	1392883	-21	kworker/u4:6+events_unbound	12:30:02	1
1202057	99	60	2,9	cyclictest	1227735	-21	awk	08:50:01	0
1202057	99	60	2,9	cyclictest	1227735	-21	awk	08:50:01	0
1202057	99	60	29,28	cyclictest	0	-21	swapper/0	11:20:27	0
1202057	99	60	26,31	cyclictest	0	-21	swapper/0	08:50:14	0
1202057	99	60	26,29	cyclictest	0	-21	swapper/0	11:30:29	0
1202057	99	59	28,29	cyclictest	0	-21	swapper/0	12:30:28	0
1202057	99	59	22,34	cyclictest	0	-21	swapper/0	08:35:17	0
1202057	99	58	24,31	cyclictest	0	-21	swapper/0	07:15:17	0
1202057	99	58	18,5	cyclictest	0	-21	swapper/0	09:00:17	0
1202057	99	58	15,9	cyclictest	1206684	-21	/usr/sbin/munin	07:25:24	0
1202058	99	57	6,43	cyclictest	1322782	-21	ssh	10:52:18	1
1202058	99	57	6,43	cyclictest	1322782	-21	ssh	10:52:18	1
1202058	99	57	50,5	cyclictest	1212332	-21	kworker/u4:3+events_unbound	07:49:02	1
1202057	99	57	24,30	cyclictest	1200783	-21	kworker/u4:6-rpciod	07:20:24	0
1202057	99	57	23,31	cyclictest	0	-21	swapper/0	07:40:17	0
1202057	99	57	22,31	cyclictest	0	-21	swapper/0	09:45:28	0
1202057	99	57	21,33	cyclictest	1203371	-21	kworker/u4:9+rpciod	07:35:40	0
1202058	99	56	46,8	cyclictest	0	-21	swapper/1	12:35:38	1
1202057	99	55	19,4	cyclictest	256	50	irq/23-42890000.ethernet	08:29:59	0
1202058	99	54	46,6	cyclictest	1268467	-21	/usr/sbin/munin	09:50:22	1
1202058	99	54	44,7	cyclictest	315	-21	systemd-journal	12:05:52	1
1202058	99	54	40,12	cyclictest	1364583	-21	fschecks_count	11:40:17	1
1202057	99	54	3,7	cyclictest	1216190	-21	cron	08:05:01	0
1202057	99	54	1,9	cyclictest	1220039	-21	latency_hist	08:20:01	0
1202058	99	53	45,5	cyclictest	1294685	-21	ntp_kernel_pll_	10:20:28	1
1202058	99	53	44,7	cyclictest	315	-21	systemd-journal	10:00:24	1
1202058	99	52	39,6	cyclictest	1205951	-21	kworker/u4:12+events_unbound	09:03:00	1
1202057	99	52	1,5	cyclictest	1226454	-21	munin-run	08:45:00	0
1202058	99	51	44,5	cyclictest	1222576	-21	kworker/u4:14+events_unbound	08:35:04	1
1202058	99	51	43,5	cyclictest	1408808	-21	basename	12:30:19	1
1202058	99	51	43,5	cyclictest	0	-21	swapper/1	10:10:25	1
1202058	99	51	41,7	cyclictest	1351567	-21	/usr/sbin/munin	11:25:23	1
1202058	99	50	44,4	cyclictest	1306814	-21	acpi	10:35:12	1
1202058	99	50	43,5	cyclictest	1299224	-21	processes	10:25:36	1
1202058	99	49	41,6	cyclictest	1222755	-21	systemd	08:30:10	1
1202058	99	49	40,6	cyclictest	1215504	-21	gltestperf	08:00:20	1
1202058	99	49	38,7	cyclictest	1272616	-21	fschecks_time	09:55:18	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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