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 all highest latencies:

System rack7slot2.osadl.org (updated Fri Jan 09, 2026 12:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3958388	99	132	119,11	cyclictest	4053921	-21	kworker/u4:8+events_unbound	10:44:59	0
3958390	99	129	118,7	cyclictest	54	-21	kswapd0	12:00:11	1
3958388	99	111	95,10	cyclictest	4053921	-21	kworker/u4:8+events_unbound	10:34:59	0
3958388	99	106	87,14	cyclictest	54	-21	kswapd0	09:40:11	0
3958390	99	95	85,7	cyclictest	3959597	-21	kworker/u4:8+events_unbound	08:44:40	1
3958390	99	88	77,6	cyclictest	4070154	-21	kworker/u4:0+events_unbound	10:50:01	1
3958388	99	86	79,5	cyclictest	3965915	-21	kworker/u4:12+events_unbound	07:49:32	0
3958390	99	80	71,6	cyclictest	4124237	-21	kworker/u4:3+events_unbound	12:10:14	1
3958390	99	80	71,6	cyclictest	4124237	-21	kworker/u4:3+events_unbound	12:10:14	1
3958390	99	76	66,7	cyclictest	4115862	-21	kworker/u4:1+events_unbound	11:50:10	1
3958390	99	76	56,13	cyclictest	3977426	-21	apt-get	08:25:10	1
3958390	99	74	65,7	cyclictest	4115867	-21	kworker/u4:6+events_unbound	11:45:10	1
3958390	99	73	54,7	cyclictest	3959597	-21	kworker/u4:8+events_unbound	08:40:01	1
3958390	99	72	61,8	cyclictest	3963404	-21	kworker/u4:7+events_unbound	07:29:30	1
3958390	99	72	55,12	cyclictest	0	-21	swapper/1	12:30:36	1
3958390	99	69	2,55	cyclictest	4114530	-21	ssh	11:40:29	1
3958388	99	68	29,26	cyclictest	255	50	irq/23-42890000.ethernet	08:05:09	0
3958388	99	68	18,25	cyclictest	4097247	-21	apt-get	11:20:11	0
3958390	99	67	60,5	cyclictest	3970966	-21	kworker/u4:11+events_unbound	08:19:39	1
3958390	99	67	59,5	cyclictest	4020757	-21	kworker/u4:18+events_unbound	09:49:54	1
3958388	99	67	48,16	cyclictest	54	-21	kswapd0	12:15:08	0
3958390	99	66	58,6	cyclictest	4140430	-21	kworker/u4:0+events_unbound	12:35:18	1
3958390	99	66	58,6	cyclictest	3983776	-21	kworker/u4:0+events_unbound	09:09:47	1
3958390	99	66	58,6	cyclictest	3964658	-21	kworker/u4:10+events_unbound	07:39:32	1
3958388	99	64	58,4	cyclictest	3948110	-21	kworker/u4:15+events_unbound	07:35:00	0
3958390	99	63	55,6	cyclictest	3983776	-21	kworker/u4:0+events_unbound	08:59:45	1
3958390	99	63	50,10	cyclictest	4065974	-21	kworker/u4:13+events_unbound	10:55:00	1
3958390	99	62	46,11	cyclictest	4105198	-21	modprobe	11:29:59	1
3958390	99	60	53,5	cyclictest	3969707	-21	kworker/u4:4+events_unbound	07:54:34	1
3958390	99	60	46,9	cyclictest	4138206	-21	modprobe	12:10:01	1
3958388	99	60	55,3	cyclictest	4103256	-21	kworker/u4:9+events_unbound	11:55:11	0
3958390	99	59	47,10	cyclictest	54	-21	kswapd0	10:15:02	1
3958390	99	59	47,10	cyclictest	54	-21	kswapd0	10:15:01	1
3958390	99	58	51,5	cyclictest	4132627	-21	kworker/u4:6+events_unbound	12:25:17	1
3958390	99	58	41,13	cyclictest	0	-21	swapper/1	11:55:31	1
3958388	99	58	40,14	cyclictest	255	50	irq/23-42890000.ethernet	08:25:11	0
3958390	99	57	5,33	cyclictest	37	-21	kcompactd0	10:15:12	1
3958388	99	57	48,7	cyclictest	4034634	-21	systemd	10:04:54	0
3958390	99	56	47,6	cyclictest	0	-21	swapper/1	09:30:24	1
3958390	99	56	43,8	cyclictest	0	-21	swapper/1	11:30:31	1
3958388	99	55	36,17	cyclictest	3989289	-21	aten_r7power_po	09:10:16	0
3958390	99	54	40,9	cyclictest	3962167	-21	modprobe	07:24:59	1
3958388	99	54	45,7	cyclictest	4049691	-21	kworker/u4:5+events_unbound	10:24:58	0
3958388	99	54	44,8	cyclictest	4027888	-21	unixbench_singl	09:55:36	0
3958388	99	54	33,7	cyclictest	4084524	-21	diskmemload	11:05:00	0
3958388	99	54	25,4	cyclictest	15	1	ktimers/0	11:35:01	0
3958388	99	54	20,21	cyclictest	0	-21	swapper/0	08:00:33	0
3958390	99	53	42,8	cyclictest	3958385	-21	cyclictest	11:20:19	1
3958388	99	53	45,5	cyclictest	4085008	-21	/usr/sbin/munin	11:05:18	0
3958390	99	52	45,5	cyclictest	4081350	-21	ntpq	11:00:26	1
3958390	99	52	44,6	cyclictest	3969704	-21	kworker/u4:1+events_unbound	08:35:01	1
3958390	99	52	35,5	cyclictest	4037020	-21	kworker/u4:7+events_unbound	10:09:59	1
3958388	99	52	40,8	cyclictest	4146699	-21	ssh	12:20:12	0
3958388	99	52	36,10	cyclictest	3985056	-21	modprobe	08:54:59	0
3958388	99	52	19,20	cyclictest	0	-21	swapper/0	12:00:31	0
3958390	99	51	43,6	cyclictest	0	-21	swapper/1	10:00:19	1
3958390	99	51	42,5	cyclictest	0	-21	swapper/1	10:55:31	1
3958388	99	51	23,2	cyclictest	15	1	ktimers/0	09:15:24	0
3958390	99	50	43,5	cyclictest	3959597	-21	kworker/u4:8+events_unbound	07:44:34	1
3958388	99	50	41,6	cyclictest	4122623	-21	/usr/sbin/munin	11:50:21	0
3958388	99	50	39,9	cyclictest	3995354	-21	kworker/u4:8-rpciod	09:30:33	0
3958388	99	50	37,10	cyclictest	54	-21	kswapd0	10:25:32	0
3958388	99	50	23,4	cyclictest	15	1	ktimers/0	10:35:24	0
3958388	99	50	20,18	cyclictest	0	-21	swapper/0	11:40:38	0
3958388	99	50	12,14	cyclictest	15	1	ktimers/0	10:50:31	0
3958390	99	49	41,5	cyclictest	4026972	-21	fschecks_count	09:55:18	1
3958390	99	49	39,8	cyclictest	3989645	-21	sed	09:10:21	1
3958388	99	49	42,5	cyclictest	4135373	-21	switchtime	12:05:35	0
3958388	99	49	38,9	cyclictest	4140435	-21	kworker/u4:13+events_unbound	12:30:33	0
3958388	99	49	35,8	cyclictest	0	-21	swapper/0	10:15:08	0
3958390	99	48	41,5	cyclictest	4147686	-21	grep	12:20:40	1
3958390	99	48	41,5	cyclictest	4096956	-21	cron	11:20:01	1
3958390	99	48	40,5	cyclictest	3969704	-21	kworker/u4:1+events_unbound	08:24:37	1
3958390	99	48	37,8	cyclictest	3997767	-21	cpu	09:20:18	1
3958390	99	48	37,8	cyclictest	3997767	-21	cpu	09:20:18	1
3958388	99	48	41,5	cyclictest	0	-21	swapper/0	12:10:26	0
3958388	99	48	41,5	cyclictest	0	-21	swapper/0	12:10:25	0
3958388	99	48	37,9	cyclictest	4118633	-21	/usr/sbin/munin	11:45:28	0
3958390	99	47	39,5	cyclictest	4089212	-21	df_abs	11:10:17	1
3958390	99	47	39,5	cyclictest	4053920	-21	kworker/u4:6-nfsiod	10:40:28	1
3958390	99	47	38,7	cyclictest	3960220	-21	gltestperf	07:15:18	1
3958388	99	47	8,8	cyclictest	4158747	-21	apt-get	12:35:13	0
3958388	99	47	40,5	cyclictest	4080321	-21	ssh	11:00:00	0
3958388	99	47	23,21	cyclictest	0	-21	swapper/0	08:20:00	0
3958390	99	46	37,7	cyclictest	3970019	-21	aten_r7power_po	07:55:17	1
3958390	99	46	36,7	cyclictest	4011062	-21	switchtime	09:35:36	1
3958388	99	46	38,5	cyclictest	3997529	-21	find	09:20:12	0
3958388	99	46	38,5	cyclictest	3997529	-21	find	09:20:11	0
3958388	99	46	37,7	cyclictest	3964960	-21	aten_r7power_po	07:35:16	0
3958388	99	46	37,6	cyclictest	4093193	-21	aten_r7power_cu	11:15:17	0
3958388	99	46	30,14	cyclictest	4001847	-21	basename	09:25:19	0
3958388	99	46	24,3	cyclictest	15	1	ktimers/0	09:45:32	0
3958390	99	45	38,5	cyclictest	4037020	-21	kworker/u4:7+events_unbound	10:22:43	1
3958390	99	45	38,5	cyclictest	4014593	-21	df_abs	09:40:22	1
3958390	99	45	38,4	cyclictest	0	-21	swapper/1	12:15:15	1
3958390	99	45	37,6	cyclictest	4060204	-21	fschecks_count	10:35:20	1
3958390	99	45	37,6	cyclictest	0	-21	swapper/1	11:05:25	1
3958390	99	45	34,8	cyclictest	3968075	-21	ps	07:45:33	1
3958388	99	45	38,5	cyclictest	4101446	-21	aten_r7power_cu	11:25:16	0
3958388	99	45	38,5	cyclictest	4092892	-21	sed	11:15:02	0
3958388	99	45	38,5	cyclictest	4039514	-21	fschecks_time	10:10:23	0
3958388	99	45	38,5	cyclictest	4039514	-21	fschecks_time	10:10:22	0
3958388	99	45	36,6	cyclictest	4150783	-21	aten2__	12:25:18	0
3958388	99	45	25,18	cyclictest	4045392	-21	kworker/u4:2+rpciod	11:35:35	0
3958388	99	45	20,7	cyclictest	0	-21	swapper/0	10:45:17	0
3958388	99	45	15,10	cyclictest	0	-21	swapper/0	07:40:35	0
3958390	99	44	36,6	cyclictest	3958832	-21	fschecks_count	07:10:19	1
3958390	99	44	36,5	cyclictest	3997304	-21	latency_hist	09:20:00	1
3958388	99	44	37,5	cyclictest	4023584	-21	awk	09:50:38	0
3958388	99	44	37,5	cyclictest	3983776	-21	kworker/u4:0+events_unbound	08:57:42	0
3958388	99	44	36,6	cyclictest	3979252	-21	fschecks_time	08:30:18	0
3958388	99	44	31,10	cyclictest	3987616	-21	idleruntime-cro	09:05:01	0
3958388	99	44	23,3	cyclictest	15	1	ktimers/0	10:05:32	0
3958390	99	43	37,4	cyclictest	0	-21	swapper/1	10:31:42	1
3958390	99	43	36,5	cyclictest	4052690	-21	timerandwakeup	10:25:37	1
3958390	99	43	35,5	cyclictest	4110234	-21	/usr/sbin/munin	11:35:22	1
3958390	99	43	34,6	cyclictest	0	-21	swapper/1	09:25:34	1
3958390	99	43	33,7	cyclictest	4022959	-21	gltestperf	09:50:20	1
3958388	99	43	37,4	cyclictest	3974884	-21	awk	08:15:00	0
3958388	99	43	37,4	cyclictest	0	-21	swapper/0	07:15:00	0
3958390	99	42	31,8	cyclictest	0	-21	swapper/1	08:50:18	1
3958390	99	42	11,23	cyclictest	0	-21	swapper/1	08:05:08	1
3958388	99	42	35,5	cyclictest	3960910	-21	sh	07:20:01	0
3958388	99	42	34,6	cyclictest	3963489	-21	latency_hist	07:30:01	0
3958388	99	42	32,8	cyclictest	4010571	-21	if_eth0	09:35:19	0
3958388	99	41	33,6	cyclictest	3976405	-21	aten_r7power_en	08:20:15	0
3958390	99	40	32,5	cyclictest	3987607	-21	munin-plugin-st	09:05:00	1
3958390	99	40	31,7	cyclictest	0	-21	swapper/1	08:45:15	1
3958388	99	40	33,5	cyclictest	3980506	-21	fschecks_time	08:35:15	0
3958388	99	40	31,7	cyclictest	3970882	-21	unixbench_multi	07:55:37	0
3958390	99	39	30,7	cyclictest	3972212	-21	unixbench_singl	08:00:35	1
3958388	99	39	31,6	cyclictest	3961147	-21	aten_r7power_cu	07:20:15	0
3958388	99	39	29,8	cyclictest	3987960	-21	sed	09:05:18	0
3958390	99	38	27,7	cyclictest	0	-21	swapper/1	07:30:15	1
3958388	99	38	30,5	cyclictest	3969757	-21	idleruntime-cro	07:55:00	0
3958390	99	37	30,5	cyclictest	0	-21	swapper/1	08:10:19	1
3958388	99	37	31,4	cyclictest	0	-21	swapper/0	08:40:34	0
3958388	99	37	29,6	cyclictest	0	-21	swapper/0	08:45:36	0
3958388	99	36	28,4	cyclictest	3958389	-21	modprobe	07:10:00	0
3958390	99	31	19,9	cyclictest	3958500	-21	sort	07:10:02	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