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 Wed Nov 19, 2025 00:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2907353	99	143	134,7	cyclictest	2961353	-21	kworker/u4:13+events_unbound	21:42:19	0
2907353	99	131	122,7	cyclictest	3057724	-21	kworker/u4:7+events_unbound	23:47:42	0
2907353	99	131	122,7	cyclictest	3057724	-21	kworker/u4:7+events_unbound	23:47:41	0
2907353	99	123	114,6	cyclictest	2957167	-21	kworker/u4:4+events_unbound	21:37:16	0
2907353	99	118	111,5	cyclictest	2953040	-21	kworker/u4:7+events_unbound	21:47:17	0
2907353	99	113	105,6	cyclictest	2985353	-21	kworker/u4:1+events_unbound	22:07:23	0
2907353	99	113	105,5	cyclictest	3065784	-21	kworker/u4:5+events_unbound	00:12:47	0
2907353	99	111	102,6	cyclictest	2993612	-21	kworker/u4:2+events_unbound	22:17:24	0
2907353	99	110	97,5	cyclictest	2925424	-21	kworker/u4:15+events_unbound	20:47:09	0
2907353	99	109	101,6	cyclictest	3065784	-21	kworker/u4:5+events_unbound	00:07:46	0
2907353	99	108	99,7	cyclictest	3033796	-21	kworker/u4:4+events_unbound	23:22:38	0
2907353	99	108	103,3	cyclictest	2921574	-21	kworker/u4:3+events_unbound	20:02:00	0
2907353	99	107	99,6	cyclictest	2973030	-21	kworker/u4:3+events_unbound	21:52:22	0
2907356	99	106	100,4	cyclictest	3069828	-21	kworker/u4:10+events_unbound	00:22:48	1
2907353	99	106	98,6	cyclictest	2921572	-21	kworker/u4:1+events_unbound	20:52:10	0
2907353	99	101	91,7	cyclictest	2989456	-21	kworker/u4:5+events_unbound	22:12:22	0
2907353	99	99	91,6	cyclictest	2948944	-21	kworker/u4:10+events_unbound	21:22:15	0
2907353	99	96	88,6	cyclictest	2938327	-21	kworker/u4:3+events_unbound	21:12:14	0
2907353	99	96	80,11	cyclictest	2997154	-21	kworker/u4:3+events_unbound	22:27:25	0
2907353	99	94	87,5	cyclictest	2981258	-21	kworker/u4:7+events_unbound	22:02:23	0
2907353	99	94	87,5	cyclictest	2981258	-21	kworker/u4:7+events_unbound	22:02:22	0
2907353	99	93	83,7	cyclictest	2989456	-21	kworker/u4:5+events_unbound	23:17:41	0
2907353	99	92	82,7	cyclictest	2989456	-21	kworker/u4:5+events_unbound	23:27:41	0
2907353	99	91	85,4	cyclictest	3033793	-21	kworker/u4:0+events_unbound	23:32:41	0
2907353	99	89	81,6	cyclictest	2989456	-21	kworker/u4:5+events_unbound	23:02:38	0
2907353	99	88	81,5	cyclictest	2908575	-21	kworker/u4:9+events_unbound	19:26:53	0
2907353	99	88	81,5	cyclictest	2908575	-21	kworker/u4:9+events_unbound	19:26:52	0
2907353	99	87	79,6	cyclictest	3099478	-21	kworker/u4:1+events_unbound	00:37:52	0
2907353	99	85	72,9	cyclictest	3019744	-21	ssh	22:50:12	0
2907356	99	84	79,3	cyclictest	2916336	-21	kworker/u4:10+events_unbound	19:41:56	1
2907356	99	82	74,6	cyclictest	2924140	-21	kworker/u4:12+events_unbound	20:37:08	1
2907353	99	81	73,6	cyclictest	3065782	-21	kworker/u4:3+events_unbound	00:02:46	0
2907356	99	80	70,7	cyclictest	2938327	-21	kworker/u4:3+events_unbound	21:17:15	1
2907353	99	77	69,6	cyclictest	2957168	-21	kworker/u4:6+events_unbound	21:32:18	0
2907353	99	76	67,7	cyclictest	2933174	-21	kworker/u4:11+events_unbound	21:27:15	0
2907356	99	75	65,8	cyclictest	2948944	-21	kworker/u4:10+events_unbound	21:22:14	1
2907353	99	74	63,7	cyclictest	3012364	-21	netstat	22:40:26	0
2907356	99	71	41,27	cyclictest	3083184	-21	modprobe	00:10:01	1
2907353	99	71	63,6	cyclictest	2906052	-21	kworker/u4:2+events_unbound	19:21:52	0
2907356	99	70	63,5	cyclictest	2909857	-21	kworker/u4:11+events_unbound	20:07:01	1
2907356	99	70	62,6	cyclictest	2957167	-21	kworker/u4:4+events_unbound	21:32:16	1
2907356	99	70	37,31	cyclictest	3095347	-21	uptime	00:25:41	1
2907356	99	70	37,29	cyclictest	0	-21	swapper/1	22:50:15	1
2907356	99	70	27,40	cyclictest	3088122	-21	timerandwakeup	00:15:43	1
2907356	99	70	2,20	cyclictest	3068365	-21	ssh	23:50:31	1
2907356	99	69	60,6	cyclictest	2929302	-21	kworker/u4:20+events_unbound	20:32:05	1
2907356	99	69	24,6	cyclictest	0	-21	swapper/1	21:55:38	1
2907353	99	69	29,36	cyclictest	2909857	-21	kworker/u4:11+events_unbound	19:45:12	0
2907356	99	68	30,35	cyclictest	3008754	-21	switchtime	22:35:44	1
2907356	99	67	52,12	cyclictest	3031951	-21	diskmemload	23:05:20	1
2907356	99	67	33,32	cyclictest	3040638	-21	cat	23:15:41	1
2907356	99	67	31,33	cyclictest	2931961	-21	grep	20:45:01	1
2907356	99	66	5,18	cyclictest	2980000	-21	sh	22:00:31	1
2907356	99	66	5,18	cyclictest	2980000	-21	sh	22:00:30	1
2907356	99	66	32,31	cyclictest	2916336	-21	kworker/u4:10+rpciod	19:55:37	1
2907356	99	66	32,31	cyclictest	2916336	-21	kworker/u4:10+rpciod	19:55:36	1
2907356	99	66	29,35	cyclictest	2972202	-21	mailstats	21:50:40	1
2907353	99	66	58,6	cyclictest	3029756	-21	kworker/u4:8+events_unbound	23:12:41	0
2907356	99	65	32,30	cyclictest	0	-21	swapper/1	22:40:37	1
2907356	99	64	38,24	cyclictest	3028943	-21	awk	23:00:44	1
2907356	99	64	32,29	cyclictest	2912703	-21	aten2__	19:30:19	1
2907356	99	64	31,29	cyclictest	0	-21	swapper/1	22:30:33	1
2907353	99	64	55,7	cyclictest	2989456	-21	kworker/u4:5+events_unbound	22:20:03	0
2907353	99	64	43,17	cyclictest	53	-21	kswapd0	23:50:09	0
2907356	99	63	55,6	cyclictest	3057724	-21	kworker/u4:7+events_unbound	23:47:46	1
2907356	99	63	55,6	cyclictest	3057724	-21	kworker/u4:7+events_unbound	23:47:45	1
2907356	99	63	55,6	cyclictest	3029757	-21	kworker/u4:9+events_unbound	23:15:01	1
2907356	99	63	55,5	cyclictest	3029755	-21	kworker/u4:6+events_unbound	23:22:41	1
2907356	99	63	30,30	cyclictest	0	-21	swapper/1	23:40:20	1
2907356	99	63	27,31	cyclictest	0	-21	swapper/1	22:55:19	1
2907353	99	63	56,5	cyclictest	2922858	-21	kworker/u4:7+events_unbound	20:22:04	0
2907353	99	63	53,8	cyclictest	3058154	-21	sshd	23:37:42	0
2907356	99	62	32,27	cyclictest	1060	-21	snmpd	19:15:31	1
2907356	99	62	28,31	cyclictest	0	-21	swapper/1	21:40:42	1
2907356	99	62	26,32	cyclictest	0	-21	swapper/1	19:45:27	1
2907356	99	62	23,8	cyclictest	3052127	-21	fschecks_time	23:30:21	1
2907356	99	62	23,5	cyclictest	0	-21	swapper/1	22:25:42	1
2907353	99	62	55,5	cyclictest	2902372	-21	kworker/u4:6+events_unbound	19:11:50	0
2907353	99	62	54,6	cyclictest	3025757	-21	kworker/u4:2+events_unbound	22:57:31	0
2907356	99	61	27,31	cyclictest	0	-21	swapper/1	21:25:31	1
2907356	99	61	27,30	cyclictest	0	-21	swapper/1	00:10:35	1
2907353	99	61	51,8	cyclictest	3072556	-21	open_inodes	23:55:40	0
2907356	99	60	28,29	cyclictest	0	-21	swapper/1	19:25:18	1
2907356	99	60	28,29	cyclictest	0	-21	swapper/1	19:25:17	1
2907356	99	60	26,4	cyclictest	0	-21	swapper/1	22:25:00	1
2907356	99	60	23,4	cyclictest	0	-21	swapper/1	00:00:26	1
2907353	99	60	51,7	cyclictest	3061786	-21	kworker/u4:1+events_unbound	23:42:43	0
2907353	99	60	37,20	cyclictest	2929775	-21	fschecks_count	20:35:22	0
2907356	99	59	48,8	cyclictest	3018061	-21	systemd	22:47:29	1
2907356	99	59	27,29	cyclictest	0	-21	swapper/1	20:20:39	1
2907356	99	59	25,4	cyclictest	0	-21	swapper/1	22:05:33	1
2907356	99	59	25,31	cyclictest	2923336	-21	fschecks_count	20:10:24	1
2907356	99	59	25,30	cyclictest	0	-21	swapper/1	21:00:23	1
2907356	99	59	22,5	cyclictest	0	-21	swapper/1	23:35:37	1
2907356	99	58	29,25	cyclictest	0	-21	swapper/1	21:10:19	1
2907356	99	58	26,29	cyclictest	0	-21	swapper/1	21:35:31	1
2907356	99	58	26,29	cyclictest	0	-21	swapper/1	00:30:22	1
2907356	99	58	25,30	cyclictest	0	-21	swapper/1	20:15:28	1
2907356	99	58	21,7	cyclictest	2981258	-21	kworker/u4:7-rpciod	22:10:32	1
2907356	99	58	21,5	cyclictest	0	-21	swapper/1	23:25:23	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