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.
Unexpectedly long latencies may be caused by SMIs
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 Wed May 13, 2026 00:45:27)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
53454	99	122	11,10	cyclictest	13	1	rcu_preempt	00:05:02	1
53449	99	111	39,59	cyclictest	138165	-21	kworker/u8:0	00:30:02	0
53449	99	90	7,68	cyclictest	93443	-21	rm	22:20:02	0
53449	99	89	12,55	cyclictest	138483	-21	ssh	23:53:50	0
53449	99	74	8,45	cyclictest	0	-21	swapper/0	21:31:36	0
53449	99	73	0,41	cyclictest	0	-21	swapper/0	00:00:01	0
53449	99	72	3,30	cyclictest	0	-21	swapper/0	23:09:04	0
53449	99	68	6,32	cyclictest	0	-21	swapper/0	21:21:13	0
53456	99	66	44,7	cyclictest	105383	-21	kworker/2:3	23:25:04	2
53456	99	66	44,7	cyclictest	105383	-21	kworker/2:3	23:25:04	2
53449	99	66	1,29	cyclictest	0	-21	swapper/0	20:18:38	0
53449	99	66	11,16	cyclictest	111161	-21	sh	22:56:59	0
53449	99	66	11,16	cyclictest	111161	-21	sh	22:56:59	0
53460	99	65	7,7	cyclictest	112480	-21	cron	23:00:00	3
53460	99	65	7,7	cyclictest	112480	-21	cron	23:00:00	3
53449	99	65	17,10	cyclictest	12	-21	ksoftirqd/0	19:55:02	0
53449	99	65	13,19	cyclictest	60086	-21	ssh	21:10:45	0
53449	99	64	30,6	cyclictest	0	-21	swapper/0	23:45:04	0
53460	99	63	7,7	cyclictest	37	-21	ksoftirqd/3	22:54:53	3
53449	99	63	17,10	cyclictest	12	-21	ksoftirqd/0	21:36:50	0
53449	99	63	17,10	cyclictest	12	-21	ksoftirqd/0	20:05:02	0
53449	99	63	13,15	cyclictest	102654	-21	ssh	22:39:29	0
53456	99	62	53,5	cyclictest	59385	-21	kworker/2:2	21:15:20	2
53449	99	62	4,28	cyclictest	12	-21	ksoftirqd/0	22:21:05	0
53449	99	62	40,8	cyclictest	12	-21	ksoftirqd/0	00:04:33	0
53449	99	62	17,8	cyclictest	12	-21	ksoftirqd/0	22:40:45	0
53449	99	62	15,17	cyclictest	87375	-21	ssh	22:07:27	0
53460	99	61	20,12	cyclictest	37	-21	ksoftirqd/3	00:20:00	3
53460	99	61	19,12	cyclictest	37	-21	ksoftirqd/3	22:45:01	3
53456	99	61	52,6	cyclictest	59385	-21	kworker/2:2	21:14:26	2
53449	99	61	18,8	cyclictest	12	-21	ksoftirqd/0	21:57:48	0
53449	99	61	17,7	cyclictest	12	-21	ksoftirqd/0	22:29:35	0
53449	99	61	16,15	cyclictest	108497	-21	sh	22:51:19	0
53449	99	61	16,10	cyclictest	12	-21	ksoftirqd/0	21:42:15	0
53449	99	61	13,12	cyclictest	153542	-21	munin-run	00:25:00	0
53460	99	60	15,15	cyclictest	37	-21	ksoftirqd/3	21:45:01	3
53449	99	60	7,23	cyclictest	120560	-21	ssh	23:16:28	0
53449	99	60	7,23	cyclictest	120560	-21	ssh	23:16:27	0
53449	99	60	6,50	cyclictest	89146	-21	ssh	22:10:59	0
53449	99	60	17,9	cyclictest	12	-21	ksoftirqd/0	23:20:07	0
53460	99	59	8,11	cyclictest	37	-21	ksoftirqd/3	19:59:59	3
53449	99	59	10,16	cyclictest	148396	-21	sh	00:14:24	0
53449	99	59	10,16	cyclictest	148396	-21	sh	00:14:24	0
53456	99	58	49,5	cyclictest	59385	-21	kworker/2:2	22:35:59	2
53449	99	58	26,16	cyclictest	135016	-21	ssh	23:46:27	0
53449	99	58	26,16	cyclictest	135016	-21	ssh	23:46:27	0
53460	99	57	9,11	cyclictest	37	-21	ksoftirqd/3	22:22:58	3
53460	99	57	6,9	cyclictest	37	-21	ksoftirqd/3	22:20:01	3
53460	99	57	6,7	cyclictest	37	-21	ksoftirqd/3	22:05:00	3
53460	99	57	15,9	cyclictest	37	-21	ksoftirqd/3	21:15:18	3
53456	99	57	47,6	cyclictest	39308	-21	kworker/2:1	22:14:59	2
53449	99	57	7,46	cyclictest	79694	-21	ssh	21:51:20	0
53449	99	57	7,21	cyclictest	124806	-21	ssh	23:25:06	0
53449	99	57	7,21	cyclictest	124806	-21	ssh	23:25:06	0
53449	99	57	3,37	cyclictest	127512	-21	ssh	23:30:46	0
53449	99	57	14,8	cyclictest	12	-21	ksoftirqd/0	00:40:02	0
53449	99	57	13,37	cyclictest	309	-21	in:imuxsock	19:40:00	0
53460	99	56	7,9	cyclictest	37	-21	ksoftirqd/3	00:35:00	3
53460	99	56	5,9	cyclictest	37	-21	ksoftirqd/3	23:50:02	3
53460	99	56	5,9	cyclictest	37	-21	ksoftirqd/3	23:50:01	3
53460	99	56	5,8	cyclictest	37	-21	ksoftirqd/3	21:31:04	3
53460	99	56	4,14	cyclictest	37	-21	ksoftirqd/3	22:40:01	3
53456	99	56	48,5	cyclictest	59385	-21	kworker/2:2	22:31:36	2
53456	99	56	47,5	cyclictest	59385	-21	kworker/2:2	21:45:57	2
53456	99	56	47,5	cyclictest	105383	-21	kworker/2:3	22:50:02	2
53456	99	56	40,11	cyclictest	30	-21	ksoftirqd/2	21:00:01	2
53449	99	56	7,22	cyclictest	12	-21	ksoftirqd/0	23:11:47	0
53449	99	56	12,9	cyclictest	12	-21	ksoftirqd/0	00:05:09	0
53449	99	56	12,11	cyclictest	157440	-21	ssh	00:33:03	0
53460	99	55	6,9	cyclictest	37	-21	ksoftirqd/3	00:01:22	3
53460	99	55	4,10	cyclictest	37	-21	ksoftirqd/3	20:15:00	3
53460	99	55	3,9	cyclictest	37	-21	ksoftirqd/3	00:05:09	3
53460	99	55	14,10	cyclictest	37	-21	ksoftirqd/3	20:17:01	3
53456	99	55	47,5	cyclictest	129386	-21	kworker/2:0	00:00:31	2
53456	99	55	47,5	cyclictest	105383	-21	kworker/2:3	00:40:02	2
53456	99	55	45,6	cyclictest	39308	-21	kworker/2:1	20:00:01	2
53456	99	55	37,13	cyclictest	57028	-21	systemctl	20:20:01	2
53456	99	55	31,19	cyclictest	275	-21	dbus-daemon	20:45:01	2
53449	99	55	7,17	cyclictest	105736	-21	ssh	22:45:32	0
53449	99	55	27,12	cyclictest	84849	-21	ssh	22:02:11	0
53449	99	55	25,26	cyclictest	193	50	irq/34-mmc1	21:20:02	0
53449	99	55	16,7	cyclictest	12	-21	ksoftirqd/0	21:28:12	0
53449	99	55	12,14	cyclictest	99051	-21	sh	22:31:43	0
53460	99	54	7,11	cyclictest	37	-21	ksoftirqd/3	22:11:38	3
53460	99	54	6,8	cyclictest	37	-21	ksoftirqd/3	20:05:03	3
53460	99	54	6,7	cyclictest	37	-21	ksoftirqd/3	23:25:01	3
53460	99	54	6,10	cyclictest	37	-21	ksoftirqd/3	23:02:03	3
53460	99	54	5,12	cyclictest	37	-21	ksoftirqd/3	22:32:37	3
53460	99	54	5,11	cyclictest	37	-21	ksoftirqd/3	22:28:29	3
53460	99	54	15,11	cyclictest	37	-21	ksoftirqd/3	21:40:02	3
53456	99	54	46,5	cyclictest	105383	-21	kworker/2:3	22:50:51	2
53456	99	54	45,5	cyclictest	59385	-21	kworker/2:2	22:40:14	2
53456	99	54	45,5	cyclictest	105383	-21	kworker/2:3	23:54:59	2
53456	99	54	44,5	cyclictest	105383	-21	kworker/2:3	23:45:11	2
53456	99	54	44,5	cyclictest	105383	-21	kworker/2:3	23:45:11	2
53454	99	54	35,14	cyclictest	275	-21	dbus-daemon	23:55:00	1
53449	99	54	19,17	cyclictest	168	50	irq/134-8000000	00:15:49	0
53449	99	54	12,10	cyclictest	78830	-21	cron	21:50:00	0
53460	99	53	6,9	cyclictest	37	-21	ksoftirqd/3	21:55:56	3
53460	99	53	6,9	cyclictest	37	-21	ksoftirqd/3	00:23:21	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