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 50 highest latencies:

System rack7slot2.osadl.org (updated Tue Jun 30, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1346120	99	118	111,5	cyclictest	1491599	-21	kworker/u4:17+events_unbound	23:17:59	1
1346119	99	103	76,22	cyclictest	53	-21	kswapd0	00:15:16	0
1346119	99	88	37,35	cyclictest	1346116	-21	cyclictest	20:51:44	0
1346120	99	83	76,5	cyclictest	1478120	-21	kworker/u4:5+events_unbound	23:02:56	1
1346120	99	83	73,7	cyclictest	1349924	-21	kworker/u4:5+events_unbound	19:40:01	1
1346120	99	80	71,6	cyclictest	1364039	-21	kworker/u4:10+events_unbound	20:20:01	1
1346120	99	80	63,14	cyclictest	1542270	-21	sh	00:15:23	1
1346119	99	79	26,30	cyclictest	0	-21	swapper/0	00:20:23	0
1346120	99	77	69,6	cyclictest	1346047	-21	kworker/u4:8+events_unbound	20:05:01	1
1346119	99	77	68,6	cyclictest	1384028	-21	kworker/u4:2+events_unbound	21:35:00	0
1346119	99	77	42,32	cyclictest	1472799	-21	grep	22:55:41	0
1346119	99	74	41,30	cyclictest	1528602	-21	ssh	00:00:00	0
1346120	99	72	64,6	cyclictest	1397811	-21	kworker/u4:6+events_unbound	22:17:50	1
1346119	99	72	64,5	cyclictest	0	-21	swapper/0	22:30:37	0
1346120	99	71	65,4	cyclictest	1370458	-21	kworker/u4:13+events_unbound	21:12:36	1
1346120	99	71	63,6	cyclictest	1535847	-21	kworker/u4:1+events_unbound	00:23:05	1
1346119	99	71	40,29	cyclictest	1494199	-21	/usr/sbin/munin	23:20:23	0
1346119	99	71	23,44	cyclictest	0	-21	swapper/0	23:15:27	0
1346120	99	70	61,7	cyclictest	1526837	-21	kworker/u4:7+events_unbound	00:05:00	1
1346120	99	69	61,5	cyclictest	1438285	-21	kworker/u4:0+events_unbound	22:32:53	1
1346119	99	69	3,16	cyclictest	1356008	-21	ps	19:45:50	0
1346119	99	68	37,27	cyclictest	0	-21	swapper/0	21:10:24	0
1346119	99	67	32,32	cyclictest	1432490	-21	sendmail_mailqu	22:10:37	0
1346120	99	66	56,8	cyclictest	1402395	-21	kworker/u4:0+events_unbound	21:42:44	1
1346120	99	66	56,8	cyclictest	1402395	-21	kworker/u4:0+events_unbound	21:42:43	1
1346119	99	66	57,6	cyclictest	1397810	-21	kworker/u4:1+events_unbound	21:37:45	0
1346119	99	66	5,40	cyclictest	1534067	-21	ssh	00:05:29	0
1346119	99	66	4,20	cyclictest	1405223	-21	ssh	21:40:27	0
1346119	99	66	4,20	cyclictest	1405223	-21	ssh	21:40:27	0
1346119	99	66	36,28	cyclictest	1529316	-21	fschecks_time	00:00:19	0
1346119	99	66	36,28	cyclictest	1391849	-21	/usr/sbin/munin	21:25:36	0
1346119	99	66	2,14	cyclictest	1475866	-21	apt-get	23:00:11	0
1346119	99	66	15,45	cyclictest	1362874	-21	latency_hist	20:15:01	0
1346120	99	65	58,5	cyclictest	1473670	-21	kworker/u4:6+events_unbound	23:40:02	1
1346120	99	65	55,7	cyclictest	1553138	-21	kworker/u4:0+events_unbound	00:28:07	1
1346119	99	65	58,5	cyclictest	1346047	-21	kworker/u4:8+events_unbound	19:35:02	0
1346119	99	65	58,4	cyclictest	1367890	-21	kworker/u4:9+events_unbound	20:35:01	0
1346119	99	65	36,27	cyclictest	1551008	-21	acpi	00:25:11	0
1346119	99	65	31,31	cyclictest	1356961	-21	gltestperf	19:50:22	0
1346119	99	65	14,48	cyclictest	1466855	-21	latency_hist	22:50:02	0
1346119	99	65	1,13	cyclictest	1409569	-21	irqstats	21:45:23	0
1346119	99	64	35,27	cyclictest	1413900	-21	fschecks_time	21:50:19	0
1346119	99	64	29,32	cyclictest	1388655	-21	kworker/u4:9+rpciod	22:00:14	0
1346119	99	64	28,33	cyclictest	0	-21	swapper/0	20:45:15	0
1346119	99	64	22,38	cyclictest	1348649	-21	kworker/u4:3	19:20:00	0
1346120	99	63	55,6	cyclictest	1384031	-21	kworker/u4:6+events_unbound	21:17:39	1
1346119	99	63	4,13	cyclictest	1444921	-21	ssh	22:25:13	0
1346119	99	63	36,24	cyclictest	0	-21	swapper/0	22:05:37	0
1346119	99	63	33,27	cyclictest	1433757	-21	kworker/u4:1-rpciod	22:15:34	0
1346119	99	63	3,22	cyclictest	1503328	-21	ssh	23:30:33	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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