OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 Jan 26, 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
1550269	99	123	105,15	cyclictest	1631442	-21	kworker/u4:5+events_unbound	22:27:00	0
1550269	99	114	89,22	cyclictest	54	-21	kswapd0	21:25:11	0
1550269	99	107	97,8	cyclictest	1736000	-21	kworker/u4:2+events_unbound	00:33:42	0
1550269	99	105	98,5	cyclictest	1572035	-21	kworker/u4:1+events_unbound	20:41:37	0
1550269	99	99	89,7	cyclictest	1583277	-21	kworker/u4:6+events_unbound	21:11:45	0
1550269	99	98	90,6	cyclictest	1618202	-21	kworker/u4:6+events_unbound	22:01:54	0
1550269	99	94	86,6	cyclictest	1635811	-21	kworker/u4:15+events_unbound	22:11:55	0
1550269	99	91	83,5	cyclictest	1722821	-21	kworker/u4:12+events_unbound	23:52:24	0
1550269	99	91	83,5	cyclictest	1722821	-21	kworker/u4:12+events_unbound	23:52:23	0
1550269	99	87	73,6	cyclictest	1691797	-21	kworker/u4:5+events_unbound	23:17:10	0
1550269	99	86	79,5	cyclictest	1718386	-21	kworker/u4:8+events_unbound	00:13:13	0
1550269	99	86	79,5	cyclictest	1583277	-21	kworker/u4:6+events_unbound	21:16:45	0
1550269	99	85	78,5	cyclictest	1587797	-21	kworker/u4:5+events_unbound	21:21:47	0
1550269	99	84	77,5	cyclictest	1601154	-21	kworker/u4:7+events_unbound	21:51:52	0
1550271	99	78	25,30	cyclictest	0	-21	swapper/1	00:10:05	1
1550269	99	78	71,5	cyclictest	1657855	-21	kworker/u4:11+events_unbound	22:50:01	0
1550271	99	77	28,28	cyclictest	0	-21	swapper/1	22:32:01	1
1550271	99	73	22,29	cyclictest	0	-21	swapper/1	22:50:32	1
1550269	99	73	64,7	cyclictest	1727201	-21	kworker/u4:5+events_unbound	00:00:01	0
1550269	99	72	65,5	cyclictest	1564297	-21	kworker/u4:3+events_unbound	20:06:31	0
1550271	99	71	40,28	cyclictest	1758042	-21	sh	00:32:53	1
1550271	99	71	38,30	cyclictest	1687050	-21	unixbench_singl	23:10:39	1
1550269	99	71	64,5	cyclictest	1570695	-21	kworker/u4:0+events_unbound	20:31:34	0
1550269	99	70	60,7	cyclictest	1739761	-21	kworker/u4:11+events_unbound	00:20:00	0
1550271	99	69	29,33	cyclictest	0	-21	swapper/1	22:45:26	1
1550269	99	68	60,6	cyclictest	1610031	-21	kworker/u4:1+events_unbound	22:06:55	0
1550271	99	66	60,4	cyclictest	1556633	-21	kworker/u4:2+events_unbound	19:50:00	1
1550271	99	65	58,5	cyclictest	1574577	-21	kworker/u4:0+events_unbound	21:31:48	1
1550269	99	65	57,6	cyclictest	1546518	-21	kworker/u4:2+events_unbound	19:26:24	0
1550269	99	65	55,3	cyclictest	1554036	-21	kworker/u4:6+events_unbound	19:31:25	0
1550271	99	64	29,31	cyclictest	0	-21	swapper/1	23:55:29	1
1550269	99	64	57,5	cyclictest	1744150	-21	kworker/u4:0+events_unbound	00:23:41	0
1550271	99	63	31,30	cyclictest	1746731	-21	wget	00:20:15	1
1550271	99	63	30,30	cyclictest	0	-21	swapper/1	23:25:32	1
1550269	99	63	46,10	cyclictest	54	-21	kswapd0	22:40:07	0
1550271	99	62	33,27	cyclictest	1625550	-21	head	22:00:22	1
1550271	99	62	3,18	cyclictest	1608625	-21	ssh	21:40:36	1
1550269	99	62	51,4	cyclictest	1605584	-21	kworker/u4:12+events_unbound	21:40:44	0
1550271	99	61	3,7	cyclictest	1629438	-21	ssh	22:05:15	1
1550271	99	61	32,25	cyclictest	0	-21	swapper/1	23:32:14	1
1550271	99	61	3,17	cyclictest	1760532	-21	ntpq	00:35:33	1
1550271	99	61	25,32	cyclictest	0	-21	swapper/1	21:55:25	1
1550271	99	60	4,9	cyclictest	1682778	-21	users	23:05:39	1
1550271	99	60	30,27	cyclictest	0	-21	swapper/1	23:15:34	1
1550271	99	60	2,7	cyclictest	1721548	-21	ps	23:50:35	1
1550271	99	60	2,7	cyclictest	1721548	-21	ps	23:50:34	1
1550271	99	60	2,5	cyclictest	1581295	-21	ssh	21:10:12	1
1550269	99	60	6,10	cyclictest	1556662	-21	apt-get	19:35:05	0
1550269	99	60	53,5	cyclictest	1635811	-21	kworker/u4:15+events_unbound	22:20:01	0
1550269	99	60	52,6	cyclictest	1705124	-21	kworker/u4:19+events_unbound	23:32:16	0
1550271	99	59	3,11	cyclictest	1612948	-21	ssh	21:45:36	1
1550271	99	59	30,27	cyclictest	1678472	-21	users	23:00:41	1
1550271	99	59	27,29	cyclictest	0	-21	swapper/1	22:35:30	1
1550271	99	59	26,30	cyclictest	0	-21	swapper/1	22:25:16	1
1550271	99	59	25,31	cyclictest	1556635	-21	kworker/u4:4-rpciod	20:30:37	1
1550271	99	59	2,17	cyclictest	1643055	-21	ssh	22:20:23	1
1550271	99	59	2,16	cyclictest	1617215	-21	ssh	21:50:33	1
1550271	99	59	20,35	cyclictest	1565744	-21	latency_hist	20:10:01	1
1550269	99	59	51,6	cyclictest	1546516	-21	kworker/u4:0+events_unbound	20:01:30	0
1550269	99	59	50,7	cyclictest	1692465	-21	kworker/u4:8+events_unbound	23:20:46	0
1550269	99	59	50,7	cyclictest	1653455	-21	kworker/u4:8+events_unbound	22:40:00	0
1550269	99	59	36,7	cyclictest	1551920	-21	fschecks_count	19:15:20	0
1550271	99	58	5,5	cyclictest	1633752	-21	ssh	22:10:13	1
1550271	99	58	5,37	cyclictest	1659789	-21	ssh	22:40:08	1
1550271	99	58	3,8	cyclictest	1590195	-21	apt-get	21:20:15	1
1550271	99	58	28,27	cyclictest	0	-21	swapper/1	00:00:18	1
1550271	99	58	24,31	cyclictest	0	-21	swapper/1	21:10:01	1
1550271	99	58	2,18	cyclictest	1716989	-21	ssh	23:45:28	1
1550271	99	58	2,17	cyclictest	1743055	-21	ntpq	00:15:28	1
1550269	99	58	51,5	cyclictest	1670471	-21	kworker/u4:3+events_unbound	23:05:43	0
1550269	99	58	50,6	cyclictest	1713954	-21	kworker/u4:1+events_unbound	23:43:00	0
1550271	99	57	27,27	cyclictest	0	-21	swapper/1	21:35:28	1
1550271	99	57	26,28	cyclictest	0	-21	swapper/1	23:20:41	1
1550271	99	57	26,27	cyclictest	0	-21	swapper/1	23:40:33	1
1550271	99	57	24,30	cyclictest	0	-21	swapper/1	22:15:30	1
1550271	99	57	22,32	cyclictest	0	-21	swapper/1	00:10:25	1
1550271	99	57	2,14	cyclictest	1556210	-21	ntpq	19:30:35	1
1550271	99	57	1,8	cyclictest	1676973	-21	sed	23:00:01	1
1550269	99	57	43,10	cyclictest	0	-21	swapper/0	21:55:13	0
1550271	99	56	48,6	cyclictest	1592302	-21	kworker/u4:1+events_unbound	21:26:48	1
1550271	99	56	4,6	cyclictest	1562553	-21	ntpq	19:55:28	1
1550271	99	56	22,30	cyclictest	1573543	-21	aten2__	20:40:15	1
1550271	99	56	20,32	cyclictest	0	-21	swapper/1	00:25:19	1
1550271	99	56	20,30	cyclictest	1553058	-21	aten_r7power_po	19:20:20	1
1550271	99	56	1,8	cyclictest	1563848	-21	ntpq	20:00:27	1
1550271	99	56	18,30	cyclictest	1546516	-21	kworker/u4:0+rpciod	19:30:02	1
1550271	99	56	1,50	cyclictest	1572267	-21	aten_r7power_cu	20:35:16	1
1550269	99	56	49,5	cyclictest	1679290	-21	kworker/u4:12+events_unbound	23:02:07	0
1550271	99	55	26,26	cyclictest	0	-21	swapper/1	21:15:29	1
1550271	99	55	26,26	cyclictest	0	-21	swapper/1	19:40:37	1
1550271	99	55	2,15	cyclictest	1570221	-21	ntpq	20:25:31	1
1550271	99	55	1,13	cyclictest	1567678	-21	ntpq	20:15:27	1
1550271	99	55	1,11	cyclictest	1561306	-21	ntpq	19:50:31	1
1550269	99	55	47,6	cyclictest	1657855	-21	kworker/u4:11+events_unbound	22:55:42	0
1550269	99	55	47,5	cyclictest	1576946	-21	/usr/sbin/munin	20:50:36	0
1550271	99	54	4,10	cyclictest	1708370	-21	ssh	23:35:33	1
1550271	99	54	26,26	cyclictest	1577475	-21	df_abs	20:55:17	1
1550271	99	54	25,27	cyclictest	0	-21	swapper/1	19:35:37	1
1550271	99	54	25,25	cyclictest	0	-21	swapper/1	19:15:36	1
1550271	99	54	21,30	cyclictest	0	-21	swapper/1	21:05:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17