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 Sun Dec 14, 2025 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1300641	99	126	87,36	cyclictest	53	-21	kswapd0	22:55:11	0
1300641	99	123	101,19	cyclictest	53	-21	kswapd0	23:00:09	0
1300641	99	114	105,7	cyclictest	1401692	-21	kworker/u4:3+events_unbound	22:47:59	0
1300641	99	111	102,6	cyclictest	1446873	-21	kworker/u4:11+events_unbound	23:28:07	0
1300642	99	110	102,5	cyclictest	1446198	-21	kworker/u4:8+events_unbound	23:23:06	1
1300641	99	109	101,6	cyclictest	1415569	-21	kworker/u4:8+events_unbound	22:43:00	0
1300641	99	109	101,6	cyclictest	1397082	-21	kworker/u4:0+events_unbound	22:22:54	0
1300641	99	108	100,6	cyclictest	1513319	-21	kworker/u4:9+events_unbound	00:38:19	0
1300641	99	105	93,5	cyclictest	1442311	-21	kworker/u4:1+events_unbound	23:18:05	0
1300641	99	101	93,6	cyclictest	1495968	-21	kworker/u4:5+events_unbound	00:18:13	0
1300641	99	101	81,17	cyclictest	53	-21	kswapd0	22:35:10	0
1300642	99	100	91,7	cyclictest	53	-21	kswapd0	23:50:31	1
1300642	99	99	91,6	cyclictest	1387914	-21	kworker/u4:6+events_unbound	22:15:16	1
1300641	99	99	82,13	cyclictest	53	-21	kswapd0	23:40:11	0
1300641	99	98	86,5	cyclictest	1374929	-21	kworker/u4:1+events_unbound	22:00:02	0
1300641	99	91	84,5	cyclictest	1495968	-21	kworker/u4:5+events_unbound	00:13:13	0
1300642	99	89	79,7	cyclictest	1424067	-21	kworker/u4:2+events_unbound	23:00:04	1
1300641	99	89	83,4	cyclictest	1365807	-21	kworker/u4:5+events_unbound	22:12:52	0
1300642	99	88	81,5	cyclictest	1459814	-21	kworker/u4:4+events_unbound	23:39:18	1
1300642	99	88	80,6	cyclictest	1486945	-21	kworker/u4:10+events_unbound	00:05:14	1
1300642	99	88	79,7	cyclictest	1473394	-21	kworker/u4:3+events_unbound	00:15:01	1
1300641	99	88	73,6	cyclictest	1473393	-21	kworker/u4:1+events_unbound	00:08:11	0
1300641	99	86	75,7	cyclictest	53	-21	kswapd0	21:55:10	0
1300642	99	82	76,4	cyclictest	1517826	-21	kworker/u4:0+events_unbound	00:40:00	1
1300642	99	82	66,5	cyclictest	1513316	-21	kworker/u4:5+events_unbound	00:33:16	1
1300642	99	82	66,5	cyclictest	1513316	-21	kworker/u4:5+events_unbound	00:33:16	1
1300642	99	80	73,5	cyclictest	1486945	-21	kworker/u4:10+events_unbound	00:20:01	1
1300641	99	78	70,6	cyclictest	1473393	-21	kworker/u4:1+events_unbound	00:20:17	0
1300642	99	75	66,7	cyclictest	1433162	-21	kworker/u4:5+events_unbound	23:10:35	1
1300642	99	75	66,7	cyclictest	1433162	-21	kworker/u4:5+events_unbound	23:10:35	1
1300642	99	72	65,5	cyclictest	1446872	-21	kworker/u4:10+events_unbound	23:30:15	1
1300642	99	72	64,6	cyclictest	53	-21	kswapd0	21:50:00	1
1300641	99	72	64,6	cyclictest	53	-21	kswapd0	21:45:12	0
1300641	99	72	62,8	cyclictest	53	-21	kswapd0	00:25:14	0
1300641	99	72	61,8	cyclictest	53	-21	kswapd0	00:00:11	0
1300641	99	71	64,5	cyclictest	1459813	-21	kworker/u4:2+events_unbound	23:57:20	0
1300642	99	70	62,6	cyclictest	1365807	-21	kworker/u4:5+events_unbound	22:53:00	1
1300642	99	70	62,5	cyclictest	53	-21	kswapd0	22:35:07	1
1300642	99	68	58,7	cyclictest	53	-21	kswapd0	21:50:33	1
1300641	99	64	56,6	cyclictest	1511559	-21	sort	00:30:21	0
1300641	99	64	56,6	cyclictest	1511559	-21	sort	00:30:21	0
1300641	99	64	56,6	cyclictest	1343556	-21	kworker/u4:1+events_unbound	21:37:42	0
1300642	99	63	55,6	cyclictest	53	-21	kswapd0	22:49:06	1
1300641	99	63	40,20	cyclictest	1304155	-21	grep	19:20:33	0
1300642	99	62	54,6	cyclictest	1460470	-21	kworker/u4:5+events_unbound	23:55:18	1
1300641	99	62	53,7	cyclictest	1343556	-21	kworker/u4:1+events_unbound	21:22:43	0
1300642	99	61	55,4	cyclictest	1308339	-21	kworker/u4:13+events_unbound	20:20:00	1
1300641	99	61	54,5	cyclictest	1442310	-21	kworker/u4:0+events_unbound	23:20:19	0
1300642	99	60	50,8	cyclictest	1466471	-21	apt-get	23:40:09	1
1300641	99	60	52,6	cyclictest	1303236	-21	kworker/u4:1+events_unbound	20:02:25	0
1300642	99	59	50,7	cyclictest	53	-21	kswapd0	22:25:11	1
1300642	99	59	50,7	cyclictest	53	-21	kswapd0	22:25:11	1
1300641	99	59	36,21	cyclictest	1368219	-21	df_abs	21:50:17	0
1300642	99	58	51,5	cyclictest	1308340	-21	kworker/u4:14+events_unbound	19:37:17	1
1300642	99	58	50,6	cyclictest	1401692	-21	kworker/u4:3+events_unbound	22:33:30	1
1300641	99	58	50,6	cyclictest	864874	-21	kworker/u4:6+events_unbound	20:22:29	0
1300641	99	58	42,11	cyclictest	1056	-21	lldpd	19:15:11	0
1300642	99	57	50,5	cyclictest	0	-21	swapper/1	00:20:33	1
1300642	99	57	48,7	cyclictest	1331340	-21	systemd	21:07:35	1
1300641	99	57	47,8	cyclictest	1401692	-21	kworker/u4:3+events_unbound	22:52:58	0
1300642	99	56	48,6	cyclictest	53	-21	kswapd0	22:15:01	1
1300641	99	56	48,5	cyclictest	1310904	-21	kworker/u4:8+events_unbound	21:17:38	0
1300641	99	56	42,8	cyclictest	0	-21	swapper/0	22:25:30	0
1300641	99	56	42,8	cyclictest	0	-21	swapper/0	22:25:29	0
1300641	99	56	39,15	cyclictest	1460805	-21	kthreadd	23:33:07	0
1300641	99	56	34,7	cyclictest	1311371	-21	fschecks_count	19:50:19	0
1300641	99	55	47,6	cyclictest	1433162	-21	kworker/u4:5+events_unbound	23:09:00	0
1300641	99	55	45,7	cyclictest	0	-21	swapper/0	22:15:32	0
1300641	99	54	46,6	cyclictest	1473395	-21	kworker/u4:4+events_unbound	23:51:11	0
1300641	99	54	38,6	cyclictest	1361251	-21	kworker/u4:8+events_unbound	21:43:00	0
1300642	99	53	46,5	cyclictest	1326233	-21	kworker/u4:4+events_unbound	21:30:59	1
1300642	99	53	45,6	cyclictest	53	-21	kswapd0	22:05:35	1
1300642	99	52	47,3	cyclictest	1301868	-21	kworker/u4:9+events_unbound	19:52:23	1
1300642	99	52	44,6	cyclictest	1473394	-21	kworker/u4:3+events_unbound	00:04:44	1
1300642	99	52	28,6	cyclictest	1473395	-21	kworker/u4:4+events_unbound	23:47:03	1
1300642	99	51	44,5	cyclictest	1349741	-21	latency_hist	21:30:01	1
1300642	99	51	44,5	cyclictest	1338874	-21	kworker/u4:0+events_unbound	21:22:37	1
1300641	99	51	41,7	cyclictest	53	-21	kswapd0	23:10:34	0
1300641	99	51	41,7	cyclictest	53	-21	kswapd0	23:10:33	0
1300641	99	51	29,19	cyclictest	0	-21	swapper/0	19:15:01	0
1300641	99	51	29,19	cyclictest	0	-21	swapper/0	19:15:01	0
1300642	99	50	43,5	cyclictest	1332790	-21	/usr/sbin/munin	21:10:37	1
1300642	99	50	42,6	cyclictest	1424068	-21	kworker/u4:11+events_unbound	22:58:01	1
1300642	99	50	42,6	cyclictest	1329799	-21	switchtime	21:00:36	1
1300641	99	50	40,7	cyclictest	1325934	-21	cat	20:45:38	0
1300641	99	50	39,6	cyclictest	256	50	irq/23-42890000.ethernet	23:40:01	0
1300641	99	50	32,15	cyclictest	1401692	-21	kworker/u4:3+rpciod	22:32:15	0
1300642	99	49	43,4	cyclictest	1313957	-21	fschecks_count	20:00:18	1
1300642	99	49	42,5	cyclictest	1413365	-21	fschecks_count	22:40:21	1
1300642	99	49	42,5	cyclictest	1372844	-21	gltestperf	21:55:18	1
1300642	99	49	42,5	cyclictest	1310904	-21	kworker/u4:8+events_unbound	21:20:01	1
1300641	99	49	24,7	cyclictest	1472974	-21	sshd	23:46:17	0
1300642	99	48	31,5	cyclictest	1303235	-21	kworker/u4:0+events_unbound	19:27:17	1
1300641	99	48	40,6	cyclictest	1305832	-21	sh	19:29:59	0
1300641	99	48	38,7	cyclictest	1381471	-21	basename	22:05:17	0
1300641	99	48	37,6	cyclictest	1349651	-21	modprobe	21:30:00	0
1300642	99	47	43,3	cyclictest	1374929	-21	kworker/u4:1+events_unbound	22:00:14	1
1300642	99	47	41,4	cyclictest	1453554	-21	aten_r7power_en	23:25:17	1
1300642	99	47	40,5	cyclictest	1397670	-21	sshd	22:22:54	1
1300642	99	47	39,6	cyclictest	1308341	-21	kworker/u4:15+events_unbound	20:37:31	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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