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 highest latencies:

System rack7slot2.osadl.org (updated Mon Nov 24, 2025 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1661249	99	133	126,5	cyclictest	1680630	-21	kworker/u4:0+events_unbound	09:10:53	1
1661249	99	127	119,6	cyclictest	1777345	-21	kworker/u4:4+events_unbound	11:20:54	1
1661249	99	126	106,8	cyclictest	1790841	-21	kworker/u4:2+events_unbound	11:40:57	1
1661249	99	118	110,6	cyclictest	1700361	-21	kworker/u4:0+events_unbound	09:30:58	1
1661249	99	118	103,6	cyclictest	1804538	-21	kworker/u4:0+events_unbound	12:01:00	1
1661249	99	115	107,6	cyclictest	1716675	-21	kworker/u4:0+events_unbound	09:56:00	1
1661249	99	112	104,6	cyclictest	1676746	-21	kworker/u4:2+events_unbound	08:20:06	1
1661249	99	109	95,6	cyclictest	1678033	-21	kworker/u4:11+events_unbound	08:15:05	1
1661249	99	109	101,6	cyclictest	1669009	-21	kworker/u4:12+events_unbound	08:05:39	1
1661249	99	108	100,6	cyclictest	1733587	-21	kworker/u4:5+events_unbound	10:36:09	1
1661249	99	101	93,6	cyclictest	1764012	-21	kworker/u4:0+events_unbound	11:01:15	1
1661249	99	100	93,5	cyclictest	1764015	-21	kworker/u4:5+events_unbound	11:36:21	1
1661249	99	100	93,5	cyclictest	1753475	-21	kworker/u4:1+events_unbound	11:10:51	1
1661249	99	99	92,5	cyclictest	1669011	-21	kworker/u4:14+events_unbound	07:59:59	1
1661249	99	98	90,6	cyclictest	1780415	-21	kworker/u4:6+events_unbound	11:25:54	1
1661248	99	98	89,6	cyclictest	1669010	-21	kworker/u4:13+events_unbound	07:55:34	0
1661249	99	97	90,5	cyclictest	1657413	-21	kworker/u4:5+events_unbound	08:10:04	1
1661249	99	96	88,6	cyclictest	1689634	-21	kworker/u4:17+events_unbound	09:20:57	1
1661249	99	93	86,5	cyclictest	1814959	-21	kworker/u4:6+events_unbound	12:16:03	1
1661248	99	91	86,3	cyclictest	1685779	-21	kworker/u4:12+events_unbound	08:45:12	0
1661248	99	90	33,41	cyclictest	0	-21	swapper/0	10:25:03	0
1661249	99	88	74,6	cyclictest	1669010	-21	kworker/u4:13+events_unbound	09:05:54	1
1661248	99	88	79,5	cyclictest	1671599	-21	kworker/u4:16+events_unbound	08:10:03	0
1661249	99	87	80,5	cyclictest	1663770	-21	kworker/u4:8+events_unbound	08:55:52	1
1661248	99	87	34,39	cyclictest	1661246	-21	cyclictest	11:35:13	0
1661249	99	85	78,5	cyclictest	1797323	-21	kworker/u4:8+events_unbound	11:51:00	1
1661248	99	85	80,3	cyclictest	1753475	-21	kworker/u4:1+events_unbound	10:46:09	0
1661248	99	85	75,7	cyclictest	1774964	-21	apt-get	11:15:10	0
1661248	99	83	77,4	cyclictest	1774123	-21	kworker/u4:14+events_unbound	11:31:21	0
1661249	99	81	74,5	cyclictest	1726767	-21	kworker/u4:0+events_unbound	10:26:05	1
1661249	99	80	73,5	cyclictest	1658630	-21	kworker/u4:7+events_unbound	07:14:45	1
1661248	99	80	69,8	cyclictest	1716677	-21	kworker/u4:3+events_unbound	10:05:35	0
1661248	99	80	23,32	cyclictest	0	-21	swapper/0	10:00:31	0
1661249	99	78	71,5	cyclictest	1685779	-21	kworker/u4:12+events_unbound	09:00:19	1
1661248	99	78	29,28	cyclictest	1762573	-21	kernelversion	10:55:29	0
1661248	99	78	27,46	cyclictest	1778601	-21	acpi	11:20:12	0
1661249	99	77	70,5	cyclictest	1680631	-21	kworker/u4:3+events_unbound	08:35:49	1
1661249	99	77	70,5	cyclictest	1657413	-21	kworker/u4:5+events_unbound	07:35:29	1
1661249	99	77	69,6	cyclictest	1787538	-21	kworker/u4:3+events_unbound	11:46:23	1
1661249	99	76	68,6	cyclictest	1667726	-21	kworker/u4:0+events_unbound	07:49:57	1
1661248	99	76	27,27	cyclictest	0	-21	swapper/0	10:35:32	0
1661248	99	75	66,6	cyclictest	1678032	-21	kworker/u4:10+events_unbound	08:50:17	0
1661248	99	75	44,25	cyclictest	1721292	-21	modprobe	09:54:59	0
1661249	99	74	66,6	cyclictest	1671599	-21	kworker/u4:16+events_unbound	08:00:37	1
1661248	99	74	63,8	cyclictest	1726767	-21	kworker/u4:0+events_unbound	10:11:05	0
1661248	99	74	26,28	cyclictest	0	-21	swapper/0	08:35:39	0
1661248	99	74	20,31	cyclictest	0	-21	swapper/0	10:20:01	0
1661249	99	72	64,6	cyclictest	1710340	-21	kworker/u4:2+events_unbound	09:40:59	1
1661248	99	72	20,29	cyclictest	0	-21	swapper/0	12:00:22	0
1661249	99	71	64,5	cyclictest	1767056	-21	kworker/u4:11+events_unbound	11:15:02	1
1661249	99	71	60,9	cyclictest	1736988	-21	kworker/u4:10+events_unbound	10:30:42	1
1661248	99	71	3,51	cyclictest	0	-21	swapper/0	09:55:39	0
1661248	99	71	3,21	cyclictest	1766056	-21	ntpq	11:00:26	0
1661249	99	70	62,6	cyclictest	1753479	-21	kworker/u4:10+events_unbound	10:56:12	1
1661249	99	70	61,7	cyclictest	53	-21	kswapd0	10:10:35	1
1661248	99	70	61,6	cyclictest	1746853	-21	kworker/u4:8+events_unbound	10:40:45	0
1661249	99	69	52,7	cyclictest	1704213	-21	kworker/u4:1+events_unbound	09:40:02	1
1661248	99	69	60,6	cyclictest	1662480	-21	kworker/u4:3+events_unbound	07:40:01	0
1661248	99	69	24,27	cyclictest	0	-21	swapper/0	10:20:33	0
1661248	99	68	37,29	cyclictest	1698651	-21	sh	09:20:00	0
1661248	99	68	37,28	cyclictest	0	-21	swapper/0	11:46:22	0
1661248	99	67	35,25	cyclictest	257	50	irq/23-42890000.ethernet	07:20:10	0
1661248	99	66	37,27	cyclictest	1831891	-21	unixbench_multi	12:35:44	0
1661248	99	65	4,56	cyclictest	1670524	-21	apt-get	07:45:12	0
1661248	99	65	3,58	cyclictest	1745826	-21	ntpq	10:30:36	0
1661248	99	65	30,31	cyclictest	1675216	-21	switchtime	08:00:36	0
1661248	99	65	20,26	cyclictest	0	-21	swapper/0	09:25:37	0
1661248	99	64	3,7	cyclictest	1667754	-21	modprobe	07:35:01	0
1661248	99	64	34,28	cyclictest	1797321	-21	kworker/u4:7-rpciod	12:10:26	0
1661248	99	64	2,13	cyclictest	1698910	-21	apt-get	09:20:11	0
1661248	99	64	1,58	cyclictest	1769465	-21	head	11:05:24	0
1661249	99	63	54,6	cyclictest	1684477	-21	kworker/u4:7+events_unbound	09:45:41	1
1661248	99	63	32,27	cyclictest	1758823	-21	fschecks_count	10:50:21	0
1661248	99	63	32,27	cyclictest	1758823	-21	fschecks_count	10:50:20	0
1661248	99	63	2,13	cyclictest	1810256	-21	ntpq	12:05:29	0
1661248	99	63	2,13	cyclictest	1669242	-21	apt-get	07:40:12	0
1661248	99	63	2,13	cyclictest	1669242	-21	apt-get	07:40:11	0
1661249	99	62	50,8	cyclictest	1662479	-21	kworker/u4:2-rpciod	07:20:24	1
1661248	99	62	2,9	cyclictest	1827833	-21	ssh	12:30:27	0
1661248	99	62	2,6	cyclictest	1682115	-21	apt-get	08:30:12	0
1661248	99	62	2,4	cyclictest	1712608	-21	ssh	09:40:33	0
1661248	99	62	1,16	cyclictest	1772724	-21	ssh	11:10:21	0
1661248	99	61	29,29	cyclictest	0	-21	swapper/0	07:10:23	0
1661248	99	61	2,15	cyclictest	1706084	-21	ntpq	09:30:34	0
1661248	99	61	2,14	cyclictest	1714897	-21	apt-get	09:45:15	0
1661248	99	61	1,5	cyclictest	1689023	-21	irqstats	08:55:31	0
1661248	99	60	49,8	cyclictest	1680617	-21	systemd	08:20:43	0
1661248	99	60	2,15	cyclictest	1676210	-21	ntpq	08:05:26	0
1661248	99	60	1,4	cyclictest	1692509	-21	apt-get	09:10:14	0
1661248	99	60	1,11	cyclictest	1782821	-21	ntp_states	11:25:35	0
1661249	99	59	9,32	cyclictest	1827185	-21	ssh	12:30:13	1
1661249	99	59	41,6	cyclictest	1757016	-21	kworker/u4:4+events_unbound	10:48:36	1
1661248	99	59	2,53	cyclictest	1824571	-21	ntpq	12:25:36	0
1661248	99	59	25,30	cyclictest	1666347	-21	unixbench_multi	07:25:38	0
1661248	99	59	2,4	cyclictest	1678889	-21	ntp_states	08:15:34	0
1661248	99	59	24,32	cyclictest	1689949	-21	aten_r7power_po	09:00:22	0
1661248	99	59	2,11	cyclictest	1671805	-21	apt-get	07:50:12	0
1661248	99	58	3,16	cyclictest	1799823	-21	ps	11:50:38	0
1661248	99	58	27,28	cyclictest	1820779	-21	gltestperf	12:20:20	0
1661248	99	58	27,27	cyclictest	1803635	-21	ssh	11:55:43	0
1661248	99	58	2,5	cyclictest	1691135	-21	apt-get	09:05:13	0
1661248	99	58	25,27	cyclictest	0	-21	swapper/0	09:40:01	0
1661248	99	58	2,14	cyclictest	1681416	-21	ntpq	08:25:29	0
1661248	99	57	3,6	cyclictest	1817471	-21	ntpq	12:15:33	0
1661248	99	57	26,29	cyclictest	0	-21	swapper/0	11:40:40	0
1661248	99	57	2,14	cyclictest	1663284	-21	ntpq	07:15:28	0
1661248	99	57	1,13	cyclictest	1685244	-21	ntpq	08:40:26	0
1661249	99	54	47,5	cyclictest	1774123	-21	kworker/u4:14+events_unbound	11:30:15	1
1661248	99	54	2,7	cyclictest	1661246	-21	cyclictest	07:10:01	0
1661249	99	53	45,6	cyclictest	398	-21	systemd-logind	09:51:00	1
1661249	99	52	41,9	cyclictest	1662474	-21	kworker/u4:1+events_unbound	07:15:24	1
1661249	99	51	44,5	cyclictest	1813599	-21	tail	12:10:26	1
1661249	99	51	44,5	cyclictest	1725402	-21	uname	10:00:26	1
1661249	99	51	42,7	cyclictest	1802611	-21	/usr/sbin/munin	11:55:21	1
1661249	99	50	41,6	cyclictest	1670348	-21	modprobe	07:45:00	1
1661249	99	50	41,6	cyclictest	1670348	-21	modprobe	07:44:59	1
1661249	99	48	6,33	cyclictest	1752444	-21	ssh	10:40:37	1
1661249	99	48	32,7	cyclictest	1685779	-21	kworker/u4:12+events_unbound	08:41:37	1
1661249	99	48	31,13	cyclictest	0	-21	swapper/1	12:20:15	1
1661249	99	47	39,6	cyclictest	1687054	-21	systemd	08:45:49	1
1661249	99	47	37,8	cyclictest	1736133	-21	ssh	10:15:38	1
1661249	99	46	39,5	cyclictest	0	-21	swapper/1	10:05:35	1
1661249	99	45	37,6	cyclictest	1667727	-21	kworker/u4:4+events_unbound	07:51:38	1
1661249	99	44	37,4	cyclictest	1687069	-21	kworker/u4:3-rpciod	09:25:20	1
1661249	99	43	40,2	cyclictest	1733587	-21	kworker/u4:5+events_unbound	10:20:21	1
1661249	99	43	36,5	cyclictest	1811579	-21	sshd	12:07:20	1
1661249	99	43	35,4	cyclictest	1689631	-21	kworker/u4:5-rpciod	09:15:40	1
1661249	99	43	34,6	cyclictest	0	-21	swapper/1	10:50:29	1
1661249	99	43	34,6	cyclictest	0	-21	swapper/1	10:50:28	1
1661249	99	43	33,6	cyclictest	0	-21	swapper/1	08:30:30	1
1661249	99	43	28,6	cyclictest	17	1	rcu_preempt	08:30:00	1
1661249	99	42	33,7	cyclictest	1831736	-21	switchtime	12:35:42	1
1661249	99	42	33,6	cyclictest	0	-21	swapper/1	11:05:31	1
1661249	99	42	33,6	cyclictest	0	-21	swapper/1	08:50:17	1
1661249	99	42	32,7	cyclictest	1661307	-21	latency_hist	07:10:01	1
1661249	99	41	34,5	cyclictest	1824267	-21	if_eth0	12:25:22	1
1661249	99	39	29,7	cyclictest	1666586	-21	latency_hist	07:30:01	1
1661249	99	38	29,6	cyclictest	0	-21	swapper/1	07:30:34	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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