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 Fri Jun 05, 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
1583129	99	103	96,5	cyclictest	1722964	-21	kworker/u4:3+events_unbound	11:39:12	0
1583129	99	103	95,6	cyclictest	1683401	-21	kworker/u4:1+events_unbound	10:29:07	0
1583130	99	95	79,5	cyclictest	1607542	-21	kworker/u4:5+events_unbound	09:29:02	1
1583129	99	94	76,15	cyclictest	1665383	-21	kworker/u4:20+events_unbound	10:09:04	0
1583130	99	92	83,6	cyclictest	1585708	-21	kworker/u4:11+events_unbound	08:48:54	1
1583130	99	90	82,6	cyclictest	1590831	-21	kworker/u4:12+events_unbound	09:18:59	1
1583130	99	90	76,5	cyclictest	1580618	-21	kworker/u4:0+events_unbound	07:53:46	1
1583130	99	86	78,6	cyclictest	1709707	-21	kworker/u4:2+events_unbound	11:09:10	1
1583130	99	86	78,6	cyclictest	1604977	-21	kworker/u4:10+events_unbound	08:33:51	1
1583130	99	86	78,6	cyclictest	1570689	-21	kworker/u4:16+events_unbound	07:28:43	1
1583129	99	86	79,5	cyclictest	1792225	-21	kworker/u4:9+events_unbound	12:34:16	0
1583129	99	85	77,6	cyclictest	1787827	-21	kworker/u4:1+events_unbound	12:29:15	0
1583129	99	84	76,5	cyclictest	1595936	-21	kworker/u4:14+events_unbound	08:53:53	0
1583130	99	82	70,6	cyclictest	1722966	-21	kworker/u4:5+events_unbound	11:16:59	1
1583130	99	81	73,6	cyclictest	1584438	-21	kworker/u4:5+events_unbound	08:23:50	1
1583129	99	81	73,6	cyclictest	1709707	-21	kworker/u4:2+events_unbound	10:59:08	0
1583129	99	80	72,6	cyclictest	1620747	-21	kworker/u4:2+events_unbound	09:34:01	0
1583129	99	80	72,6	cyclictest	1620747	-21	kworker/u4:2+events_unbound	09:34:01	0
1583129	99	79	71,6	cyclictest	1770844	-21	kworker/u4:4+events_unbound	12:39:16	0
1583130	99	78	69,6	cyclictest	27	1	ktimers/1	10:11:45	1
1583129	99	78	70,6	cyclictest	1607542	-21	kworker/u4:5+events_unbound	09:13:58	0
1583130	99	77	69,6	cyclictest	1570689	-21	kworker/u4:16+events_unbound	07:38:45	1
1583130	99	75	68,5	cyclictest	1589559	-21	kworker/u4:1+events_unbound	08:00:01	1
1583130	99	70	63,5	cyclictest	1610080	-21	kworker/u4:2+events_unbound	09:03:56	1
1583129	99	70	51,5	cyclictest	1748784	-21	kworker/u4:4+events_unbound	11:44:10	0
1583130	99	69	61,6	cyclictest	1603706	-21	kworker/u4:9+events_unbound	08:38:53	1
1583130	99	65	58,5	cyclictest	1595936	-21	kworker/u4:14+events_unbound	08:03:49	1
1583129	99	65	57,6	cyclictest	1585708	-21	kworker/u4:11+events_unbound	09:23:58	0
1583129	99	65	56,7	cyclictest	1718542	-21	kworker/u4:10+events_unbound	11:19:12	0
1583129	99	64	46,7	cyclictest	1674392	-21	kworker/u4:6+events_unbound	10:19:09	0
1583130	99	63	46,10	cyclictest	0	-21	swapper/1	10:25:14	1
1583129	99	63	58,3	cyclictest	1345946	-21	kworker/u4:10+events_unbound	07:23:43	0
1583129	99	62	54,6	cyclictest	1638879	-21	kworker/u4:8+events_unbound	09:49:04	0
1583129	99	62	54,6	cyclictest	1592124	-21	kworker/u4:13+events_unbound	08:13:49	0
1583129	99	60	53,4	cyclictest	1753196	-21	kworker/u4:3+events_unbound	12:15:01	0
1583129	99	59	51,6	cyclictest	1687910	-21	kworker/u4:8+events_unbound	10:42:01	0
1583129	99	58	2,6	cyclictest	17	1	rcu_preempt	09:55:35	0
1583130	99	57	47,7	cyclictest	1711667	-21	sh	11:00:00	1
1583130	99	57	34,18	cyclictest	0	-21	swapper/1	11:45:02	1
1583130	99	56	46,8	cyclictest	1650017	-21	apt-get	09:50:11	1
1583129	99	56	48,6	cyclictest	1731827	-21	kworker/u4:11+events_unbound	11:24:10	0
1583129	99	55	47,6	cyclictest	1753193	-21	kworker/u4:0+events_unbound	11:54:13	0
1583130	99	54	47,5	cyclictest	1778971	-21	kworker/u4:7+events_unbound	12:20:04	1
1583130	99	54	43,6	cyclictest	0	-21	swapper/1	10:05:12	1
1583130	99	54	42,7	cyclictest	0	-21	swapper/1	09:56:59	1
1583130	99	54	39,11	cyclictest	0	-21	swapper/1	11:35:35	1
1583129	99	54	41,11	cyclictest	1734170	-21	gltestperf	11:25:19	0
1583130	99	53	45,6	cyclictest	1585708	-21	kworker/u4:11+events_unbound	07:18:44	1
1583130	99	53	44,6	cyclictest	1634367	-21	kworker/u4:4-rpciod	09:35:40	1
1583129	99	53	44,6	cyclictest	1595936	-21	kworker/u4:14+events_unbound	09:17:45	0
1583130	99	52	41,8	cyclictest	1738197	-21	aten_r7power_po	11:30:17	1
1583129	99	52	45,5	cyclictest	1603706	-21	kworker/u4:9+events_unbound	08:45:01	0
1583129	99	52	45,5	cyclictest	1603706	-21	kworker/u4:9+events_unbound	08:45:01	0
1583129	99	52	44,6	cyclictest	1687912	-21	kworker/u4:10+events_unbound	10:40:00	0
1583130	99	51	45,4	cyclictest	1718541	-21	kworker/u4:7+events_unbound	11:14:00	1
1583130	99	51	44,6	cyclictest	1585708	-21	kworker/u4:11+events_unbound	07:42:00	1
1583130	99	51	44,6	cyclictest	1585708	-21	kworker/u4:11+events_unbound	07:42:00	1
1583130	99	51	44,5	cyclictest	1595936	-21	kworker/u4:14+events_unbound	08:05:02	1
1583130	99	51	43,6	cyclictest	1761999	-21	kworker/u4:1+events_unbound	12:05:46	1
1583130	99	51	43,6	cyclictest	1709710	-21	kworker/u4:8+events_unbound	11:02:59	1
1583130	99	51	42,7	cyclictest	1642368	-21	ssh	09:40:39	1
1583129	99	51	43,5	cyclictest	1641950	-21	/usr/sbin/munin	09:40:30	0
1583129	99	51	31,17	cyclictest	0	-21	swapper/0	11:05:31	0
1583130	99	50	43,5	cyclictest	1735606	-21	kworker/u4:12+events_unbound	11:27:01	1
1583130	99	50	42,6	cyclictest	1791339	-21	/usr/sbin/munin	12:30:39	1
1583130	99	50	42,6	cyclictest	1659887	-21	/usr/sbin/munin	10:00:38	1
1583129	99	50	44,4	cyclictest	1781926	-21	uname	12:20:22	0
1583129	99	50	41,6	cyclictest	0	-21	swapper/0	10:20:02	0
1583129	99	50	41,6	cyclictest	0	-21	swapper/0	10:20:01	0
1583129	99	50	40,7	cyclictest	0	-21	swapper/0	10:10:24	0
1583129	99	50	36,10	cyclictest	0	-21	swapper/0	12:00:14	0
1583129	99	50	33,14	cyclictest	247	50	irq/20-imx-lcdifv3-crtc.0	08:04:59	0
1583130	99	49	43,5	cyclictest	1683401	-21	kworker/u4:1+events_unbound	10:49:00	1
1583130	99	49	42,6	cyclictest	1687912	-21	kworker/u4:10+events_unbound	10:37:46	1
1583130	99	49	42,5	cyclictest	1781090	-21	ssh	12:20:01	1
1583130	99	49	42,5	cyclictest	1770844	-21	kworker/u4:4+events_unbound	12:37:58	1
1583130	99	49	41,6	cyclictest	1604977	-21	kworker/u4:10+events_unbound	09:05:03	1
1583130	99	49	40,6	cyclictest	1592354	-21	aten2__	07:45:18	1
1583130	99	49	40,6	cyclictest	1592354	-21	aten2__	07:45:17	1
1583130	99	49	40,6	cyclictest	0	-21	swapper/1	12:00:36	1
1583130	99	49	38,7	cyclictest	1598501	-21	kworker/u4:0-rpciod	08:10:16	1
1583129	99	49	43,4	cyclictest	1753197	-21	kworker/u4:7+events_unbound	12:00:00	0
1583129	99	49	42,5	cyclictest	1766433	-21	kworker/u4:12+events_unbound	12:17:45	0
1583129	99	49	41,6	cyclictest	1720640	-21	apt-get	11:10:11	0
1583129	99	49	40,6	cyclictest	1652473	-21	kworker/u4:13+events_unbound	10:04:04	0
1583129	99	49	39,8	cyclictest	1736245	-21	kworker/u4:13+events_unbound	11:30:15	0
1583129	99	49	32,6	cyclictest	1674392	-21	kworker/u4:6+events_unbound	10:31:46	0
1583130	99	48	41,4	cyclictest	0	-21	swapper/1	09:30:10	1
1583130	99	48	41,4	cyclictest	0	-21	swapper/1	09:30:10	1
1583130	99	48	38,7	cyclictest	1677793	-21	timerandwakeup	10:20:39	1
1583130	99	48	38,7	cyclictest	1677793	-21	timerandwakeup	10:20:38	1
1583130	99	48	36,9	cyclictest	1778971	-21	kworker/u4:7-rpciod	12:25:36	1
1583129	99	48	44,2	cyclictest	1638877	-21	kworker/u4:6+events_unbound	09:50:01	0
1583129	99	48	40,6	cyclictest	1604191	-21	fschecks_count	08:30:17	0
1583129	99	48	40,5	cyclictest	1707295	-21	ssh	10:55:00	0
1583129	99	48	37,9	cyclictest	1750998	-21	apt-get	11:45:13	0
1583130	99	47	40,5	cyclictest	1620747	-21	kworker/u4:2+events_unbound	09:21:59	1
1583130	99	47	40,5	cyclictest	1607542	-21	kworker/u4:5+events_unbound	08:59:00	1
1583130	99	47	40,5	cyclictest	1607213	-21	sendmail_mailqu	08:40:36	1
1583130	99	47	40,5	cyclictest	1607213	-21	sendmail_mailqu	08:40:35	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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