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 shadow in rack #5, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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, lowest P state: ondemand
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack5slot4s.osadl.org (updated Sun Apr 26, 2026 00:44:17)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3949149	99	65	56,7	cyclictest	4095951	-21	kworker/u8:2+flush-8:0	21:46:22	1
3949149	99	61	54,5	cyclictest	20850	-21	kworker/u8:2+events_unbound	23:41:15	1
3949145	99	61	37,21	cyclictest	4051281	-21	diskstats	20:51:10	0
3949149	99	58	51,5	cyclictest	3971318	-21	kworker/u8:0+flush-8:0	19:56:20	1
3949149	99	56	50,4	cyclictest	4103405	-21	kworker/u8:1+flush-8:0	23:11:20	1
3949149	99	56	50,4	cyclictest	4103405	-21	kworker/u8:1+flush-8:0	23:11:20	1
3949149	99	54	46,6	cyclictest	45368	-21	kworker/u8:0+flush-8:0	00:06:21	1
3949145	99	54	45,6	cyclictest	70131	-21	latency_hist	00:25:01	0
3949149	99	53	47,4	cyclictest	4103405	-21	kworker/u8:1+events_unbound	22:51:22	1
3949149	99	51	45,5	cyclictest	3971318	-21	kworker/u8:0+flush-8:0	20:21:20	1
3949149	99	51	43,6	cyclictest	4103405	-21	kworker/u8:1+flush-8:0	23:36:19	1
3949145	99	51	26,22	cyclictest	4021607	-21	diskstats	20:21:09	0
3949153	99	50	45,4	cyclictest	4189318	-21	kworker/u8:3+flush-8:0	00:01:23	2
3949149	99	50	44,3	cyclictest	3971318	-21	kworker/u8:0+events_unbound	20:06:08	1
3949149	99	50	41,7	cyclictest	4154764	-21	kworker/u8:0+flush-8:0	22:46:23	1
4101193	2	49	0,5	chrt	0	-21	swapper/2	21:41:08	2
3949149	99	49	44,4	cyclictest	3954095	-21	kworker/u8:3+flush-8:0	21:36:21	1
3949149	99	49	43,4	cyclictest	4124979	-21	kworker/u8:3+events_unbound	22:06:10	1
3949149	99	49	43,4	cyclictest	3954095	-21	kworker/u8:3+events_unbound	20:26:12	1
3949149	99	49	40,6	cyclictest	3954095	-21	kworker/u8:3+flush-8:0	19:31:21	1
3949145	99	49	39,7	cyclictest	4125339	-21	latency_hist	22:05:01	0
3949145	99	49	21,17	cyclictest	4090178	-21	unixbench_singl	21:26:25	0
3949145	99	49	21,17	cyclictest	4090178	-21	unixbench_singl	21:26:24	0
4036420	2	48	41,4	sleep3	0	-21	swapper/3	20:36:09	3
3949153	99	48	43,4	cyclictest	4154764	-21	kworker/u8:0+flush-8:0	23:01:23	2
3949145	99	48	31,15	cyclictest	45358	-21	basename	00:00:00	0
3949149	99	47	42,3	cyclictest	4189318	-21	kworker/u8:3+events_unbound	23:31:19	1
3949149	99	46	43,2	cyclictest	3971318	-21	kworker/u8:0+flush-8:0	20:01:19	1
3949149	99	46	40,5	cyclictest	69322	-21	kworker/u8:2+events_unbound	00:26:12	1
3949149	99	46	40,4	cyclictest	4154764	-21	kworker/u8:0+flush-8:0	23:16:09	1
3949149	99	46	40,4	cyclictest	4154764	-21	kworker/u8:0+flush-8:0	23:16:09	1
3949149	99	46	40,4	cyclictest	3971318	-21	kworker/u8:0+flush-8:0	20:41:09	1
3949149	99	46	38,6	cyclictest	3954095	-21	kworker/u8:3+events_unbound	19:21:20	1
3949145	99	46	37,7	cyclictest	4085568	-21	latency_hist	21:25:01	0
3949145	99	46	33,10	cyclictest	3954061	-21	apt-get	19:15:00	0
3949153	99	45	40,4	cyclictest	3971318	-21	kworker/u8:0+events_unbound	19:46:18	2
3949149	99	45	40,4	cyclictest	3954095	-21	kworker/u8:3+flush-8:0	21:31:13	1
3949149	99	45	39,4	cyclictest	20850	-21	kworker/u8:2+events_unbound	23:46:17	1
3949149	99	45	36,7	cyclictest	4154764	-21	kworker/u8:0+flush-8:0	23:21:18	1
3949145	99	45	13,22	cyclictest	0	-21	swapper/0	19:21:08	0
3949153	99	44	40,3	cyclictest	4189318	-21	kworker/u8:3+events_unbound	00:30:01	2
3949149	99	44	38,4	cyclictest	4124979	-21	kworker/u8:3+events_unbound	22:26:20	1
3949149	99	44	38,4	cyclictest	4103405	-21	kworker/u8:1+events_unbound	22:01:16	1
3949149	99	44	38,4	cyclictest	3954095	-21	kworker/u8:3+flush-8:0	19:26:19	1
3949149	99	44	37,5	cyclictest	3971318	-21	kworker/u8:0+events_unbound	19:51:18	1
3949145	99	44	27,15	cyclictest	3961180	-21	idleruntime-cro	19:20:00	0
3949145	99	44	18,16	cyclictest	876	-21	mta-sts-daemon	23:13:45	0
3949145	99	44	18,16	cyclictest	876	-21	mta-sts-daemon	23:13:44	0
3949149	99	43	38,4	cyclictest	3954095	-21	kworker/u8:3+events_unbound	21:21:19	1
3949149	99	43	36,6	cyclictest	4095951	-21	kworker/u8:2+flush-8:0	22:31:19	1
3949149	99	43	35,6	cyclictest	4031125	-21	kworker/u8:1+flush-8:0	21:16:19	1
3949145	99	43	25,15	cyclictest	3990483	-21	ntpq	19:46:17	0
3949149	99	42	37,4	cyclictest	4031125	-21	kworker/u8:1+events_unbound	21:06:18	1
3949149	99	42	36,5	cyclictest	3971318	-21	kworker/u8:0+events_unbound	20:56:17	1
3949149	99	42	36,4	cyclictest	4031125	-21	kworker/u8:1+flush-8:0	21:01:14	1
3949149	99	42	35,5	cyclictest	69322	-21	kworker/u8:2+flush-8:0	00:36:24	1
3949149	99	42	34,6	cyclictest	4154764	-21	kworker/u8:0+flush-8:0	22:56:20	1
3949149	99	42	33,7	cyclictest	4144313	-21	ntpq	22:21:18	1
3949145	99	42	7,19	cyclictest	0	-21	swapper/0	21:16:08	0
3949145	99	42	13,18	cyclictest	0	-21	swapper/0	23:26:05	0
3948692	2	42	28,9	sleep1	0	-21	swapper/1	19:06:46	1
3948692	2	42	28,9	sleep1	0	-21	swapper/1	19:06:46	1
3949149	99	41	37,3	cyclictest	4103405	-21	kworker/u8:1+events_unbound	22:16:14	1
3949149	99	41	35,4	cyclictest	4154764	-21	kworker/u8:0+flush-8:0	23:01:20	1
3949149	99	41	35,4	cyclictest	4031125	-21	kworker/u8:1+events_unbound	20:51:22	1
3949149	99	41	34,5	cyclictest	4189318	-21	kworker/u8:3+flush-8:0	23:26:19	1
3949149	99	41	30,8	cyclictest	280	-21	systemd-journal	20:19:36	1
3949149	99	41	27,10	cyclictest	45351	-40	logrotate	00:00:00	1
3949145	99	41	9,17	cyclictest	0	-21	swapper/0	21:36:09	0
4190537	2	40	0,2	sleep2	0	-21	swapper/2	23:11:13	2
4190537	2	40	0,2	sleep2	0	-21	swapper/2	23:11:13	2
3949149	99	40	36,3	cyclictest	3954095	-21	kworker/u8:3+flush-8:0	21:11:23	1
3949149	99	40	34,5	cyclictest	3971318	-21	kworker/u8:0+events_unbound	20:46:17	1
3949145	99	40	3,29	cyclictest	0	-21	swapper/0	00:06:06	0
3949145	99	40	31,7	cyclictest	4139298	-21	ntpq	22:16:17	0
3949145	99	39	9,18	cyclictest	4036160	-21	/usr/sbin/munin	20:36:24	0
3949145	99	39	4,28	cyclictest	0	-21	swapper/0	00:16:07	0
3949145	99	39	24,13	cyclictest	4021019	-21	sendmail	20:20:00	0
3949153	99	38	34,3	cyclictest	3971318	-21	kworker/u8:0+events_unbound	20:16:24	2
3949153	99	38	31,5	cyclictest	280	-21	systemd-journal	19:20:00	2
3949149	99	38	34,2	cyclictest	4154764	-21	kworker/u8:0+events_unbound	22:36:11	1
3949149	99	38	32,5	cyclictest	3954095	-21	kworker/u8:3+flush-8:0	20:11:21	1
3949149	99	38	32,4	cyclictest	3986755	-21	apt-get	19:46:05	1
3949149	99	38	32,4	cyclictest	3954095	-21	kworker/u8:3+events_unbound	20:36:21	1
3949149	99	38	31,5	cyclictest	4103405	-21	kworker/u8:1+events_unbound	21:55:01	1
3949145	99	38	8,18	cyclictest	589	-21	runrttasks	22:49:39	0
3949145	99	38	22,14	cyclictest	3986377	-21	apt-key	19:45:00	0
3949145	99	38	22,14	cyclictest	3986377	-21	apt-key	19:45:00	0
3949149	99	37	33,3	cyclictest	3971318	-21	kworker/u8:0+events_unbound	20:31:12	1
3949149	99	37	32,3	cyclictest	3944102	-21	kworker/u8:2+events_unbound	19:11:18	1
3949149	99	37	31,4	cyclictest	49462	-21	ntpq	00:01:17	1
3949145	99	37	4,26	cyclictest	0	-21	swapper/0	23:41:04	0
3949145	99	37	14,21	cyclictest	4060826	-21	turbostat.cron	21:00:00	0
3949149	99	36	30,5	cyclictest	4189318	-21	kworker/u8:3+flush-8:0	00:21:18	1
3949149	99	36	29,5	cyclictest	4031125	-21	kworker/u8:1+flush-8:0	21:26:10	1
3949149	99	36	29,5	cyclictest	4031125	-21	kworker/u8:1+flush-8:0	21:26:10	1
3949145	99	36	30,4	cyclictest	4103405	-21	kworker/u8:1+events_unbound	22:21:05	0
3949145	99	36	1,11	cyclictest	4109651	-21	ntpq	21:46:16	0
3949149	99	35	29,5	cyclictest	4189318	-21	kworker/u8:3+flush-8:0	00:16:21	1
3949149	99	35	29,4	cyclictest	4103405	-21	kworker/u8:1+events_unbound	00:31:11	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