OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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 792 highest latencies:

System rackeslot6s.osadl.org (updated Thu Mar 19, 2026 00:44:50)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3189875	99	78	7,4	cyclictest	0	-21	swapper/0	23:40:02	0
3189875	99	58	14,38	cyclictest	0	-21	swapper/0	00:35:01	0
3189875	99	55	1,35	cyclictest	15	-21	rcuc/0	20:10:00	0
3189878	99	54	4,30	cyclictest	0	-21	swapper/1	23:50:01	1
3189878	99	54	4,30	cyclictest	0	-21	swapper/1	23:50:00	1
3189875	99	53	34,16	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:25:00	0
3189878	99	51	33,8	cyclictest	0	-21	swapper/1	23:05:00	1
3189875	99	51	1,38	cyclictest	0	-21	swapper/0	20:00:01	0
3189878	99	50	1,28	cyclictest	0	-21	swapper/1	19:35:02	1
3189878	99	50	1,28	cyclictest	0	-21	swapper/1	19:35:02	1
3189875	99	50	42,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	23:25:00	0
3189879	99	49	1,7	cyclictest	0	-21	swapper/2	23:05:00	2
3189878	99	49	1,30	cyclictest	0	-21	swapper/1	00:15:01	1
3189878	99	48	37,8	cyclictest	3242822	-21	sendmail	00:20:01	1
3189878	99	48	27,9	cyclictest	0	-21	swapper/1	23:35:30	1
3189878	99	48	1,34	cyclictest	0	-21	swapper/1	23:25:02	1
3189879	99	47	34,9	cyclictest	1283	-21	cron	19:55:00	2
3189875	99	47	40,3	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	19:35:18	0
3189875	99	47	38,6	cyclictest	3239680	-21	cpu	00:00:16	0
3189878	99	46	39,4	cyclictest	3232681	-21	cron	23:20:00	1
3189875	99	46	39,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	20:45:27	0
3189875	99	46	39,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	00:35:21	0
3189879	99	45	34,7	cyclictest	0	-21	swapper/2	20:00:30	2
3189879	99	45	29,12	cyclictest	31	1	ktimers/2	23:50:13	2
3189879	99	45	27,15	cyclictest	31	1	ktimers/2	22:10:12	2
3189879	99	45	27,15	cyclictest	31	1	ktimers/2	22:10:11	2
3189878	99	45	35,7	cyclictest	3228470	-21	munin-plugin-st	22:55:01	1
3189878	99	45	34,7	cyclictest	0	-21	swapper/1	22:40:28	1
3189875	99	45	37,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	19:10:16	0
3189875	99	45	33,6	cyclictest	3192643	-21	kworker/u8:2-events_freezable_power_	19:35:01	0
3189875	99	45	33,6	cyclictest	3192643	-21	kworker/u8:2-events_freezable_power_	19:35:01	0
3189875	99	45	1,38	cyclictest	0	-21	swapper/0	20:15:24	0
3189879	99	44	35,5	cyclictest	3225091	-21	munin-plugin-st	22:35:00	2
3189879	99	44	34,6	cyclictest	14	-21	rcu_preempt	00:30:27	2
3189878	99	44	34,6	cyclictest	3208778	-21	munin-plugin-st	21:00:01	1
3189878	99	44	30,9	cyclictest	0	-21	swapper/1	22:15:02	1
3189878	99	44	30,9	cyclictest	0	-21	swapper/1	22:15:02	1
3189875	99	44	38,3	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	19:50:12	0
3189875	99	44	37,4	cyclictest	206	50	irq/252-8000000.ethernet	23:20:00	0
3189875	99	44	37,3	cyclictest	14	-21	rcu_preempt	23:05:29	0
3189875	99	44	37,3	cyclictest	14	-21	rcu_preempt	23:05:29	0
3189875	99	44	33,7	cyclictest	3239451	-21	sendmail	00:00:00	0
3189875	99	44	2,6	cyclictest	3243175	-21	df	00:20:16	0
3189875	99	44	2,5	cyclictest	3236581	-21	memory	23:40:25	0
3189879	99	43	7,21	cyclictest	30	-21	rcuc/2	20:55:00	2
3189879	99	43	29,10	cyclictest	0	-21	swapper/2	20:30:26	2
3189878	99	43	37,4	cyclictest	3189872	-21	cyclictest	22:10:01	1
3189875	99	43	38,3	cyclictest	13	1	ktimers/0	00:30:01	0
3189875	99	43	38,3	cyclictest	13	1	ktimers/0	00:30:01	0
3189875	99	43	36,3	cyclictest	3229110	-21	grep	22:55:27	0
3189875	99	43	2,5	cyclictest	3226446	-21	meminfo	22:40:22	0
3189875	99	43	2,4	cyclictest	0	-21	swapper/0	21:00:02	0
3189875	99	43	2,39	cyclictest	0	-21	swapper/0	21:30:28	0
3189875	99	43	1,4	cyclictest	3231202	-21	/usr/sbin/munin	23:10:25	0
3189875	99	43	1,40	cyclictest	0	-21	swapper/0	19:15:29	0
3189875	99	43	12,5	cyclictest	14	1	rcu_preempt	21:15:10	0
3189879	99	42	35,4	cyclictest	3211312	-21	munin-plugin-st	21:15:00	2
3189879	99	42	31,7	cyclictest	0	-21	swapper/2	00:20:01	2
3189879	99	42	29,8	cyclictest	0	-21	swapper/2	20:15:27	2
3189879	99	42	29,8	cyclictest	0	-21	swapper/2	19:40:00	2
3189879	99	42	18,11	cyclictest	0	-21	swapper/2	19:55:22	2
3189878	99	42	2,21	cyclictest	0	-21	swapper/1	23:35:01	1
3189878	99	42	22,10	cyclictest	0	-21	swapper/1	21:25:27	1
3189875	99	42	35,4	cyclictest	0	-21	swapper/0	22:45:16	0
3189875	99	42	29,7	cyclictest	0	-21	swapper/0	19:25:28	0
3189875	99	42	22,17	cyclictest	0	-21	swapper/0	19:45:24	0
3189875	99	42	1,39	cyclictest	0	-21	swapper/0	21:05:24	0
3189875	99	42	1,12	cyclictest	15	-21	rcuc/0	19:45:02	0
3189879	99	41	30,7	cyclictest	0	-21	swapper/2	21:45:28	2
3189878	99	41	4,17	cyclictest	3194541	-21	/usr/sbin/munin	19:35:17	1
3189878	99	41	29,8	cyclictest	3215527	-21	unixbench_multi	21:35:27	1
3189878	99	41	29,8	cyclictest	0	-21	swapper/1	21:10:28	1
3189878	99	41	26,9	cyclictest	0	-21	swapper/1	22:30:27	1
3189878	99	41	25,9	cyclictest	0	-21	swapper/1	23:50:26	1
3189878	99	41	25,9	cyclictest	0	-21	swapper/1	23:05:28	1
3189878	99	41	25,9	cyclictest	0	-21	swapper/1	23:05:28	1
3189875	99	41	35,4	cyclictest	0	-21	swapper/0	22:25:28	0
3189875	99	41	35,4	cyclictest	0	-21	swapper/0	22:25:28	0
3189875	99	41	34,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	00:15:28	0
3189875	99	41	32,5	cyclictest	0	-21	swapper/0	21:35:27	0
3189875	99	41	30,7	cyclictest	0	-21	swapper/0	21:10:29	0
3189875	99	41	30,7	cyclictest	0	-21	swapper/0	20:55:29	0
3189875	99	41	1,4	cyclictest	3237423	-21	memory	23:45:24	0
3189875	99	41	1,4	cyclictest	3237423	-21	memory	23:45:24	0
3189879	99	40	28,8	cyclictest	0	-21	swapper/2	21:05:28	2
3189879	99	40	28,8	cyclictest	0	-21	swapper/2	19:25:19	2
3189879	99	40	28,7	cyclictest	0	-21	swapper/2	22:35:28	2
3189879	99	40	24,11	cyclictest	0	-21	swapper/2	19:30:19	2
3189879	99	40	24,11	cyclictest	0	-21	swapper/2	19:30:19	2
3189878	99	40	35,3	cyclictest	3192863	-21	/usr/sbin/munin	19:25:19	1
3189878	99	40	30,7	cyclictest	0	-21	swapper/1	23:10:27	1
3189875	99	40	32,5	cyclictest	208	50	irq/208-8000000.ethernet	20:00:20	0
3189875	99	40	30,7	cyclictest	0	-21	swapper/0	21:29:59	0
3189875	99	40	27,8	cyclictest	0	-21	swapper/0	22:00:18	0
3189875	99	40	2,3	cyclictest	3205706	-21	perl	20:40:17	0
3189875	99	40	21,17	cyclictest	0	-21	swapper/0	20:35:18	0
3189879	99	39	31,4	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	23:00:00	2
3189879	99	39	30,5	cyclictest	3232691	-21	run-parts	23:20:00	2
3189879	99	39	29,6	cyclictest	0	-21	swapper/2	00:10:27	2
3189879	99	39	28,7	cyclictest	0	-21	swapper/2	19:50:01	2
3189879	99	39	27,8	cyclictest	0	-21	swapper/2	23:20:28	2
3189879	99	39	27,8	cyclictest	0	-21	swapper/2	21:25:27	2
3189879	99	39	27,7	cyclictest	0	-21	swapper/2	23:40:28	2
3189878	99	39	30,6	cyclictest	0	-21	swapper/1	00:39:59	1
3189878	99	39	1,3	cyclictest	0	-21	swapper/1	19:15:02	1
3189878	99	39	1,20	cyclictest	0	-21	swapper/1	20:50:01	1
3189875	99	39	31,4	cyclictest	206	50	irq/252-8000000.ethernet	23:30:22	0
3189875	99	39	31,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:05:17	0
3189875	99	39	1,3	cyclictest	3221993	-21	awk	22:15:17	0
3189879	99	38	29,5	cyclictest	3208742	-21	grep	20:55:28	2
3189879	99	38	27,5	cyclictest	0	-21	swapper/2	19:20:20	2
3189879	99	38	26,8	cyclictest	0	-21	swapper/2	23:10:01	2
3189879	99	38	26,8	cyclictest	0	-21	swapper/2	23:10:00	2
3189879	99	38	25,9	cyclictest	0	-21	swapper/2	22:50:28	2
3189878	99	38	19,8	cyclictest	0	-21	swapper/1	20:30:25	1
3189875	99	38	31,4	cyclictest	206	50	irq/252-8000000.ethernet	23:05:01	0
3189875	99	38	27,8	cyclictest	0	-21	swapper/0	21:50:28	0
3189875	99	38	27,8	cyclictest	0	-21	swapper/0	21:50:28	0
3189875	99	38	1,7	cyclictest	0	-21	swapper/0	00:15:00	0
3189875	99	38	1,3	cyclictest	3238571	-21	users	23:50:28	0
3189875	99	38	1,3	cyclictest	3192026	-21	apt-get	19:20:10	0
3189875	99	38	1,35	cyclictest	0	-21	swapper/0	21:55:10	0
3189879	99	37	28,5	cyclictest	3244558	-21	grep	00:25:26	2
3189879	99	37	28,5	cyclictest	3244558	-21	grep	00:25:26	2
3189879	99	37	26,7	cyclictest	0	-21	swapper/2	21:50:27	2
3189879	99	37	26,7	cyclictest	0	-21	swapper/2	21:50:26	2
3189879	99	37	24,9	cyclictest	31	1	ktimers/2	20:40:10	2
3189879	99	37	21,9	cyclictest	0	-21	swapper/2	20:05:27	2
3189878	99	37	29,5	cyclictest	3218993	-21	sh	21:59:59	1
3189878	99	37	29,5	cyclictest	0	-21	swapper/1	22:00:27	1
3189878	99	37	28,5	cyclictest	3218089	-21	grep	21:50:27	1
3189878	99	37	28,5	cyclictest	3218089	-21	grep	21:50:27	1
3189878	99	37	27,6	cyclictest	0	-21	swapper/1	20:50:29	1
3189878	99	37	24,8	cyclictest	0	-21	swapper/1	22:25:29	1
3189878	99	37	24,8	cyclictest	0	-21	swapper/1	22:25:29	1
3189878	99	37	24,7	cyclictest	0	-21	swapper/1	20:40:26	1
3189878	99	37	23,9	cyclictest	0	-21	swapper/1	21:30:29	1
3189878	99	37	23,9	cyclictest	0	-21	swapper/1	19:50:25	1
3189878	99	37	1,3	cyclictest	0	-21	swapper/1	20:00:02	1
3189878	99	37	1,3	cyclictest	0	-21	swapper/1	19:45:01	1
3189875	99	37	31,4	cyclictest	0	-21	swapper/0	20:30:15	0
3189875	99	37	30,4	cyclictest	208	50	irq/208-8000000.ethernet	00:05:22	0
3189875	99	37	30,4	cyclictest	0	-21	swapper/0	22:50:25	0
3189875	99	37	1,34	cyclictest	0	-21	swapper/0	20:10:15	0
3189875	99	37	1,34	cyclictest	0	-21	swapper/0	20:10:15	0
3189879	99	36	28,5	cyclictest	0	-21	swapper/2	22:00:00	2
3189879	99	36	27,5	cyclictest	3202715	-21	grep	20:20:27	2
3189879	99	36	24,6	cyclictest	0	-21	swapper/2	20:45:28	2
3189879	99	36	22,9	cyclictest	31	1	ktimers/2	23:55:15	2
3189879	99	36	19,2	cyclictest	3200452	1	/usr/sbin/munin	20:10:15	2
3189879	99	36	19,2	cyclictest	3200452	1	/usr/sbin/munin	20:10:15	2
3189879	99	36	1,30	cyclictest	30	-21	rcuc/2	22:40:19	2
3189878	99	36	26,7	cyclictest	0	-21	swapper/1	22:15:27	1
3189878	99	36	25,8	cyclictest	0	-21	swapper/1	20:10:28	1
3189878	99	36	25,8	cyclictest	0	-21	swapper/1	20:10:28	1
3189878	99	36	23,8	cyclictest	0	-21	swapper/1	20:25:28	1
3189875	99	36	30,4	cyclictest	208	50	irq/208-8000000.ethernet	23:25:17	0
3189875	99	36	26,6	cyclictest	0	-21	swapper/0	21:45:01	0
3189875	99	36	25,4	cyclictest	0	-21	swapper/0	20:20:28	0
3189875	99	36	21,8	cyclictest	0	-21	swapper/0	22:35:00	0
3189875	99	36	1,7	cyclictest	3212514	-21	dropbear	21:20:20	0
3189875	99	36	1,3	cyclictest	0	-21	swapper/0	22:12:28	0
3189875	99	36	1,3	cyclictest	0	-21	swapper/0	22:12:27	0
3189879	99	35	25,7	cyclictest	31	1	ktimers/2	19:40:13	2
3189879	99	35	25,6	cyclictest	3190630	-21	grep	19:10:27	2
3189879	99	35	24,6	cyclictest	3209591	-21	grep	21:00:28	2
3189879	99	35	23,9	cyclictest	31	1	ktimers/2	22:15:10	2
3189879	99	35	21,9	cyclictest	0	-21	swapper/2	22:25:00	2
3189878	99	35	28,4	cyclictest	0	-21	swapper/1	00:25:26	1
3189878	99	35	28,4	cyclictest	0	-21	swapper/1	00:25:26	1
3189878	99	35	25,7	cyclictest	0	-21	swapper/1	21:05:28	1
3189878	99	35	23,8	cyclictest	0	-21	swapper/1	21:40:28	1
3189878	99	35	18,11	cyclictest	0	-21	swapper/1	21:20:27	1
3189878	99	35	1,26	cyclictest	23	1	ktimers/1	21:15:25	1
3189878	99	35	1,26	cyclictest	0	-21	swapper/1	21:50:00	1
3189875	99	35	31,2	cyclictest	0	-21	swapper/0	21:45:29	0
3189875	99	35	29,4	cyclictest	0	-21	swapper/0	20:25:12	0
3189875	99	35	29,3	cyclictest	0	-21	swapper/0	22:35:11	0
3189879	99	34	26,5	cyclictest	3219768	-21	unixbench_multi	22:00:27	2
3189879	99	34	25,5	cyclictest	0	-21	swapper/2	20:25:28	2
3189879	99	34	24,7	cyclictest	0	-21	swapper/2	21:30:28	2
3189879	99	34	24,7	cyclictest	0	-21	swapper/2	19:15:29	2
3189879	99	34	24,6	cyclictest	0	-21	swapper/2	21:40:27	2
3189879	99	34	21,9	cyclictest	0	-21	swapper/2	22:25:21	2
3189879	99	34	21,9	cyclictest	0	-21	swapper/2	22:25:20	2
3189879	99	34	1,27	cyclictest	3220053	-21	/usr/sbin/munin	22:05:27	2
3189878	99	34	22,7	cyclictest	3200197	-21	grep	20:05:28	1
3189878	99	34	20,9	cyclictest	0	-21	swapper/1	00:30:27	1
3189875	99	34	1,31	cyclictest	0	-21	swapper/0	20:50:59	0
3189879	99	33	24,5	cyclictest	0	-21	swapper/2	23:30:28	2
3189879	99	33	23,7	cyclictest	0	-21	swapper/2	00:00:30	2
3189879	99	33	21,8	cyclictest	0	-21	swapper/2	00:35:29	2
3189879	99	33	1,26	cyclictest	0	-21	swapper/2	00:05:10	2
3189878	99	33	26,4	cyclictest	0	-21	swapper/1	21:00:26	1
3189879	99	32	24,5	cyclictest	3215040	-21	df	21:35:15	2
3189879	99	32	23,7	cyclictest	31	1	ktimers/2	23:25:13	2
3189879	99	32	23,6	cyclictest	0	-21	swapper/2	23:50:02	2
3189879	99	32	23,6	cyclictest	0	-21	swapper/2	23:50:01	2
3189879	99	32	23,4	cyclictest	0	-21	swapper/2	23:10:27	2
3189878	99	32	23,7	cyclictest	0	-21	swapper/1	00:00:30	1
3189878	99	32	22,7	cyclictest	3205271	-21	grep	20:35:29	1
3189878	99	32	11,10	cyclictest	0	-21	swapper/1	00:20:04	1
3189879	99	31	1,24	cyclictest	0	-21	swapper/2	22:45:12	2
3189878	99	31	21,7	cyclictest	0	-21	swapper/1	00:05:27	1
3189878	99	31	1,8	cyclictest	0	-21	swapper/1	23:00:02	1
3189878	99	31	18,9	cyclictest	0	-21	swapper/1	19:10:01	1
3189878	99	31	1,28	cyclictest	0	-21	swapper/1	19:10:24	1
3189875	99	31	26,2	cyclictest	0	-21	swapper/0	19:10:01	0
3189879	99	30	24,4	cyclictest	0	-21	swapper/2	20:35:17	2
3189879	99	30	19,7	cyclictest	0	-21	swapper/2	21:20:29	2
3189878	99	30	24,4	cyclictest	3236280	-21	/usr/sbin/munin	23:40:27	1
3189878	99	30	20,7	cyclictest	0	-21	swapper/1	22:45:28	1
3189879	99	29	19,7	cyclictest	0	-21	swapper/2	21:15:28	2
3189878	99	29	18,8	cyclictest	0	-21	swapper/1	20:15:27	1
3189878	99	29	17,9	cyclictest	0	-21	swapper/1	20:20:25	1
3189879	99	28	19,6	cyclictest	0	-21	swapper/2	23:35:29	2
3189879	99	28	17,7	cyclictest	0	-21	swapper/2	00:24:59	2
3189878	99	28	21,4	cyclictest	0	-21	swapper/1	22:20:22	1
3189878	99	28	21,4	cyclictest	0	-21	swapper/1	19:20:23	1
3189878	99	28	18,7	cyclictest	0	-21	swapper/1	22:40:02	1
3189878	99	28	18,7	cyclictest	0	-21	swapper/1	20:00:28	1
3189878	99	27	21,3	cyclictest	0	-21	swapper/1	19:40:26	1
3189878	99	27	17,7	cyclictest	0	-21	swapper/1	23:55:28	1
3189878	99	25	1,22	cyclictest	0	-21	swapper/1	23:26:27	1
3189879	99	21	12,5	cyclictest	0	-21	swapper/2	19:10:02	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2020-10-04 - 12:21