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 Mon Jun 15, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1676756	99	74	69,3	cyclictest	1825601	-21	kworker/u4:3+events_unbound	23:42:47	1
1676755	99	74	48,18	cyclictest	1832056	-21	ssh	23:30:09	0
1676755	99	73	27,40	cyclictest	256	50	irq/23-42890000.ethernet	20:15:11	0
1676756	99	69	56,10	cyclictest	0	-21	swapper/1	21:20:10	1
1676755	99	67	26,27	cyclictest	1725506	-21	apt-get	21:30:13	0
1676756	99	66	54,9	cyclictest	37	-21	kcompactd0	00:20:54	1
1676756	99	66	33,11	cyclictest	0	-21	swapper/1	22:55:32	1
1676756	99	64	59,3	cyclictest	1677982	-21	kworker/u4:10+events_unbound	19:30:01	1
1676756	99	64	56,6	cyclictest	1687023	-21	kworker/u4:2+events_unbound	19:50:00	1
1676755	99	62	18,40	cyclictest	256	50	irq/23-42890000.ethernet	00:30:11	0
1676756	99	61	51,7	cyclictest	1674252	-21	kworker/u4:6+events_unbound	19:37:00	1
1676756	99	61	34,9	cyclictest	0	-21	swapper/1	22:50:16	1
1676755	99	60	41,17	cyclictest	1722597	-21	ssh	21:25:40	0
1676756	99	59	51,5	cyclictest	1679267	-21	kworker/u4:15+events_unbound	19:21:57	1
1676756	99	59	48,9	cyclictest	53	-21	kswapd0	00:30:09	1
1676756	99	58	48,7	cyclictest	1767754	-21	kworker/u4:1+events_unbound	22:32:34	1
1676756	99	58	47,8	cyclictest	317	-21	systemd-journal	00:28:30	1
1676756	99	57	52,3	cyclictest	1727897	-21	kworker/u4:2+events_unbound	21:32:24	1
1676755	99	56	49,5	cyclictest	1748837	-21	proc_pri	21:55:35	0
1676755	99	55	30,22	cyclictest	0	-21	swapper/0	19:30:08	0
1676755	99	55	30,22	cyclictest	0	-21	swapper/0	19:30:08	0
1676755	99	54	47,5	cyclictest	1778804	-21	latency_hist	22:30:01	0
1676755	99	54	46,5	cyclictest	1770611	-21	gltestperf	22:20:21	0
1676755	99	54	45,7	cyclictest	378	-21	dbus-daemon	23:17:41	0
1676755	99	54	41,11	cyclictest	1785112	-21	kworker/u4:11-rpciod	22:55:23	0
1676755	99	54	36,15	cyclictest	1845646	-21	gltestperf	23:45:21	0
1676756	99	53	47,4	cyclictest	1694770	-21	kworker/u4:6+events_unbound	21:17:20	1
1676756	99	53	45,6	cyclictest	1812102	-21	kworker/u4:5+events_unbound	23:12:43	1
1676756	99	53	43,7	cyclictest	1879049	-21	kworker/u4:3+events_unbound	00:38:32	1
1676756	99	53	37,14	cyclictest	1805506	-21	ssh	23:00:14	1
1676756	99	53	27,20	cyclictest	0	-21	swapper/1	22:35:17	1
1676756	99	52	5,35	cyclictest	1868401	-21	ssh	00:10:37	1
1676755	99	52	43,6	cyclictest	1834537	-21	kworker/u4:1+events_unbound	23:37:46	0
1676755	99	52	4,29	cyclictest	1850392	-21	ssh	23:50:27	0
1676755	99	52	42,8	cyclictest	1739403	-21	fschecks_time	21:45:22	0
1676755	99	52	35,15	cyclictest	1814498	-21	aten_r7power_vo	23:10:15	0
1676756	99	51	42,6	cyclictest	1688828	-21	fschecks_time	19:55:19	1
1676755	99	51	42,7	cyclictest	1693393	-21	systemd	20:12:07	0
1676755	99	51	34,15	cyclictest	1752745	-21	fschecks_time	22:00:21	0
1676755	99	51	32,17	cyclictest	0	-21	swapper/0	20:20:20	0
1676756	99	50	44,4	cyclictest	1761768	-21	/usr/sbin/munin	22:10:22	1
1676756	99	50	44,4	cyclictest	1761768	-21	/usr/sbin/munin	22:10:22	1
1676756	99	50	43,5	cyclictest	1811258	-21	who	23:05:42	1
1676756	99	50	43,5	cyclictest	1811258	-21	who	23:05:42	1
1676756	99	50	42,6	cyclictest	1781276	-21	kworker/u4:9+events_unbound	22:42:36	1
1676756	99	50	42,5	cyclictest	1863243	-21	diskmemload	00:05:20	1
1676756	99	50	41,6	cyclictest	1850957	-21	ssh	23:50:40	1
1676756	99	50	39,8	cyclictest	1709275	-21	timerandwakeup	21:10:45	1
1676756	99	50	37,10	cyclictest	1702370	-21	timerwakeupswit	20:45:36	1
1676756	99	50	22,8	cyclictest	1760832	-21	ssh	22:09:55	1
1676756	99	50	21,8	cyclictest	1862509	-21	ssh	00:04:41	1
1676756	99	50	20,9	cyclictest	1778440	-21	ssh	22:29:42	1
1676756	99	50	20,8	cyclictest	1743384	-21	ssh	21:50:07	1
1676756	99	50	19,8	cyclictest	1855621	-21	ssh	23:55:55	1
1676756	99	50	19,8	cyclictest	1741851	-21	ssh	21:47:58	1
1676755	99	50	42,6	cyclictest	1706459	-21	kworker/u4:11+xprtiod	21:10:11	0
1676755	99	50	40,8	cyclictest	1855212	-21	/usr/sbin/munin	23:55:40	0
1676756	99	49	43,4	cyclictest	1674252	-21	kworker/u4:6+events_unbound	19:45:02	1
1676756	99	49	40,6	cyclictest	1753384	-21	cat	22:00:41	1
1676756	99	49	38,8	cyclictest	1770097	-21	apt-get	22:20:12	1
1676756	99	49	21,9	cyclictest	1847545	-21	ssh	23:47:12	1
1676756	99	49	21,9	cyclictest	1736489	-21	ssh	21:41:34	1
1676756	99	49	21,8	cyclictest	1794486	-21	ssh	22:47:08	1
1676756	99	49	21,8	cyclictest	1723868	-21	ssh	21:27:28	1
1676756	99	49	20,9	cyclictest	1838962	-21	ssh	23:37:39	1
1676756	99	49	19,8	cyclictest	1874415	-21	ssh	00:17:27	1
1676756	99	49	19,8	cyclictest	1835464	-21	ssh	23:34:02	1
1676756	99	49	19,8	cyclictest	1818692	-21	ssh	23:15:07	1
1676756	99	49	19,8	cyclictest	1751147	-21	ssh	21:58:39	1
1676756	99	49	19,8	cyclictest	1733090	-21	ssh	21:38:07	1
1676756	99	49	18,9	cyclictest	1826129	-21	ssh	23:23:07	1
1676755	99	49	37,7	cyclictest	1772296	-21	kworker/u4:10-rpciod	22:39:23	0
1676755	99	49	30,17	cyclictest	1702233	-21	cat	20:45:35	0
1676755	99	49	23,3	cyclictest	15	1	ktimers/0	21:20:23	0
1676756	99	48	20,8	cyclictest	1829808	-21	ssh	23:26:57	1
1676755	99	48	9,18	cyclictest	14	-21	ksoftirqd/0	22:50:31	0
1676755	99	48	8,10	cyclictest	1735091	-21	tail	21:40:24	0
1676755	99	48	40,5	cyclictest	0	-21	swapper/0	23:00:11	0
1676755	99	48	39,7	cyclictest	1736824	-21	kworker/u4:4+rpciod	22:07:29	0
1676755	99	48	38,7	cyclictest	1685076	-21	gltestperf	19:40:19	0
1676755	99	48	38,6	cyclictest	0	-21	swapper/0	21:35:31	0
1676755	99	48	27,18	cyclictest	0	-21	swapper/0	00:20:46	0
1676756	99	47	20,8	cyclictest	1767157	-21	ssh	22:15:56	1
1676755	99	47	40,5	cyclictest	1780227	-21	unixbench_multi	22:30:41	0
1676755	99	47	37,8	cyclictest	1863658	-21	/usr/sbin/munin	00:05:25	0
1676755	99	47	37,7	cyclictest	1881636	-21	ntp_offset	00:25:33	0
1676755	99	47	28,4	cyclictest	1824518	-21	unixbench_singl	23:20:40	0
1676755	99	47	25,20	cyclictest	378	-21	dbus-daemon	23:07:40	0
1676755	99	47	25,20	cyclictest	378	-21	dbus-daemon	23:07:40	0
1676755	99	47	12,31	cyclictest	1765660	-21	ssh	22:15:14	0
1676756	99	46	39,5	cyclictest	1691081	-21	aten2__	20:05:17	1
1676756	99	46	38,5	cyclictest	1706074	-21	proc_pri	21:00:36	1
1676756	99	46	38,5	cyclictest	1696590	-21	fschecks_count	20:25:19	1
1676756	99	46	37,5	cyclictest	1694749	-21	kworker/u4:3-xprtiod	20:20:07	1
1676756	99	46	28,15	cyclictest	0	-21	swapper/1	20:10:35	1
1676756	99	46	25,15	cyclictest	1694790	-21	modprobe	20:20:00	1
1676755	99	46	39,5	cyclictest	1868297	-21	ssh	00:10:33	0
1676755	99	46	39,5	cyclictest	1705665	-21	fschecks_count	21:00:20	0
1676755	99	46	39,5	cyclictest	1700453	-21	fschecks_count	20:40:19	0
1676755	99	46	39,5	cyclictest	1700453	-21	fschecks_count	20:40:19	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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