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 #e, slot #3

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
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackeslot3s.osadl.org (updated Fri Jan 02, 2026 00:45:04)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2521010	99	106	1,102	cyclictest	0	-21	swapper/0	00:00:02	0
2521017	99	83	35,43	cyclictest	238	-21	systemd-journal	23:00:00	2
2521017	99	74	25,9	cyclictest	238	-21	systemd-journal	20:31:40	2
2521017	99	73	22,12	cyclictest	238	-21	systemd-journal	00:40:02	2
2521017	99	69	30,4	cyclictest	2521998	-21	sshd	19:27:22	2
2521017	99	69	27,20	cyclictest	1	-21	systemd	20:00:00	2
2521010	99	67	6,23	cyclictest	2538252	-21	sed	00:40:02	0
2521020	99	65	26,12	cyclictest	1	-21	systemd	19:40:01	3
2521013	99	63	6,8	cyclictest	23	-21	ksoftirqd/1	00:00:02	1
2521017	99	62	4,14	cyclictest	2529773	-21	modprobe	22:00:00	2
2521017	99	62	29,4	cyclictest	1	-21	systemd	00:25:00	2
2521017	99	62	27,5	cyclictest	274	-21	cron	00:00:00	2
2521010	99	62	5,18	cyclictest	2527786	-21	sed	21:20:01	0
2521017	99	61	22,9	cyclictest	2530823	-21	cat	22:20:00	2
2521017	99	60	23,10	cyclictest	2533927	-21	systemctl	23:20:00	2
2521013	99	60	8,11	cyclictest	23	-21	ksoftirqd/1	00:10:01	1
2521010	99	59	6,6	cyclictest	12	-21	ksoftirqd/0	23:52:56	0
2521010	99	59	15,8	cyclictest	12	-21	ksoftirqd/0	20:20:00	0
2521020	99	58	4,12	cyclictest	2529774	-21	modprobe	22:00:00	3
2521020	99	58	26,5	cyclictest	2526444	-21	latency_hist	20:55:02	3
2521010	99	58	4,17	cyclictest	2534709	-21	systemctl	23:35:01	0
2521010	99	58	1,20	cyclictest	2534075	-21	sed	23:20:03	0
2521020	99	57	40,13	cyclictest	275	-21	dbus-daemon	22:40:01	3
2521017	99	57	14,7	cyclictest	13	1	rcu_preempt	23:50:01	2
2521017	99	57	14,7	cyclictest	13	1	rcu_preempt	23:50:01	2
2521013	99	57	3,10	cyclictest	23	-21	ksoftirqd/1	22:00:02	1
2521013	99	57	2,11	cyclictest	23	-21	ksoftirqd/1	00:40:01	1
2521010	99	57	13,7	cyclictest	12	-21	ksoftirqd/0	22:10:01	0
2521020	99	56	15,7	cyclictest	0	-21	swapper/3	22:10:00	3
2521013	99	56	15,9	cyclictest	23	-21	ksoftirqd/1	21:05:02	1
2521013	99	56	11,12	cyclictest	23	-21	ksoftirqd/1	23:15:02	1
2521013	99	55	26,21	cyclictest	23	-21	ksoftirqd/1	20:35:01	1
2521010	99	55	27,3	cyclictest	0	-21	swapper/0	00:30:03	0
2521010	99	55	18,24	cyclictest	12	-21	ksoftirqd/0	23:15:01	0
2521010	99	55	15,10	cyclictest	2524290	-21	cat	20:10:02	0
2521020	99	54	23,8	cyclictest	2534184	-21	cron	23:25:00	3
2521020	99	54	23,8	cyclictest	2534184	-21	cron	23:25:00	3
2521017	99	54	24,10	cyclictest	275	-21	dbus-daemon	23:45:01	2
2521013	99	54	5,9	cyclictest	23	-21	ksoftirqd/1	19:55:02	1
2521013	99	54	5,9	cyclictest	23	-21	ksoftirqd/1	19:55:02	1
2521013	99	54	3,7	cyclictest	23	-21	ksoftirqd/1	23:40:00	1
2521013	99	54	33,15	cyclictest	238	-21	systemd-journal	00:15:01	1
2521013	99	53	1,11	cyclictest	2532265	-21	wc	22:45:02	1
2521010	99	53	15,9	cyclictest	275	-21	dbus-daemon	21:10:01	0
2521017	99	52	11,6	cyclictest	13	1	rcu_preempt	23:15:00	2
2521013	99	52	2,7	cyclictest	23	-21	ksoftirqd/1	22:15:01	1
2521013	99	52	2,7	cyclictest	23	-21	ksoftirqd/1	22:15:01	1
2521013	99	52	15,13	cyclictest	23	-21	ksoftirqd/1	20:30:00	1
2521013	99	52	15,13	cyclictest	23	-21	ksoftirqd/1	20:30:00	1
2521013	99	51	7,12	cyclictest	23	-21	ksoftirqd/1	19:20:00	1
2521020	99	50	3,6	cyclictest	13	1	rcu_preempt	21:00:01	3
2521013	99	50	41,6	cyclictest	22	1	rcuc/1	21:30:02	1
2521013	99	50	32,13	cyclictest	238	-21	systemd-journal	22:20:00	1
2521013	99	50	1,11	cyclictest	23	-21	ksoftirqd/1	22:40:00	1
2521010	99	50	3,11	cyclictest	0	-21	swapper/0	21:00:01	0
2521017	99	49	9,8	cyclictest	30	-21	ksoftirqd/2	22:14:40	2
2521017	99	49	9,8	cyclictest	30	-21	ksoftirqd/2	22:14:40	2
2521017	99	49	4,9	cyclictest	30	-21	ksoftirqd/2	00:01:40	2
2521017	99	49	3,7	cyclictest	13	1	rcu_preempt	19:40:00	2
2521013	99	49	5,14	cyclictest	23	-21	ksoftirqd/1	20:50:03	1
2521013	99	49	5,13	cyclictest	23	-21	ksoftirqd/1	21:25:02	1
2521013	99	49	30,15	cyclictest	1	-21	systemd	21:00:00	1
2521010	99	49	41,4	cyclictest	169	50	irq/224-8000000	21:45:01	0
2521010	99	49	26,19	cyclictest	2521203	-21	sshd	19:10:40	0
2521010	99	49	10,7	cyclictest	0	-21	swapper/0	20:35:00	0
2521017	99	48	28,14	cyclictest	1	-21	systemd	19:55:01	2
2521017	99	48	28,14	cyclictest	1	-21	systemd	19:55:01	2
2521013	99	48	8,10	cyclictest	23	-21	ksoftirqd/1	23:10:02	1
2521013	99	48	5,7	cyclictest	23	-21	ksoftirqd/1	00:25:02	1
2521013	99	48	4,8	cyclictest	23	-21	ksoftirqd/1	23:45:01	1
2521013	99	48	38,6	cyclictest	23	-21	ksoftirqd/1	22:10:00	1
2521010	99	48	6,7	cyclictest	238	-21	systemd-journal	19:25:00	0
2521010	99	48	39,5	cyclictest	169	50	irq/224-8000000	21:25:01	0
2521020	99	47	31,12	cyclictest	1	-21	systemd	23:05:02	3
2521020	99	47	29,14	cyclictest	275	-21	dbus-daemon	20:35:00	3
2521017	99	47	30,13	cyclictest	1	-21	systemd	21:35:00	2
2521013	99	47	26,12	cyclictest	309	-21	in:imuxsock	00:30:00	1
2521013	99	47	1,8	cyclictest	2533010	-21	sort	23:00:02	1
2521010	99	47	8,14	cyclictest	2527595	-21	ls	21:15:02	0
2521010	99	47	42,3	cyclictest	169	50	irq/224-8000000	22:15:01	0
2521010	99	47	42,3	cyclictest	169	50	irq/224-8000000	22:15:01	0
2521010	99	47	10,6	cyclictest	2522642	-21	sed	19:40:02	0
2521020	99	46	4,5	cyclictest	13	1	rcu_preempt	21:25:03	3
2521013	99	46	6,9	cyclictest	23	-21	ksoftirqd/1	21:15:00	1
2521013	99	46	6,9	cyclictest	23	-21	ksoftirqd/1	19:10:01	1
2521013	99	46	6,7	cyclictest	23	-21	ksoftirqd/1	19:30:01	1
2521013	99	46	6,10	cyclictest	23	-21	ksoftirqd/1	21:10:00	1
2521013	99	46	5,8	cyclictest	23	-21	ksoftirqd/1	21:55:00	1
2521013	99	46	5,10	cyclictest	23	-21	ksoftirqd/1	19:25:00	1
2521013	99	46	37,7	cyclictest	23	-21	ksoftirqd/1	20:20:00	1
2521013	99	46	2,11	cyclictest	23	-21	ksoftirqd/1	20:50:02	1
2521013	99	46	15,6	cyclictest	13	1	rcu_preempt	23:35:02	1
2521013	99	46	1,12	cyclictest	23	-21	ksoftirqd/1	19:35:01	1
2521013	99	46	10,8	cyclictest	23	-21	ksoftirqd/1	21:50:01	1
2521010	99	46	9,33	cyclictest	0	-21	swapper/0	00:20:01	0
2521010	99	46	9,33	cyclictest	0	-21	swapper/0	00:20:00	0
2521010	99	46	29,13	cyclictest	2521453	-21	sshd	19:15:40	0
2521020	99	45	3,4	cyclictest	13	1	rcu_preempt	20:30:00	3
2521020	99	45	3,4	cyclictest	13	1	rcu_preempt	20:30:00	3
2521020	99	45	28,11	cyclictest	37	-21	ksoftirqd/3	00:00:01	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2021-09-01 - 00:33