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 all highest latencies:

System rackeslot6s.osadl.org (updated Tue Mar 24, 2026 00:44:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3422912	99	88	9,37	cyclictest	3452258	-21	sed	22:00:01	1
3422912	99	64	22,34	cyclictest	0	-21	swapper/1	23:55:21	1
3422912	99	61	23,30	cyclictest	0	-21	swapper/1	19:50:27	1
3422912	99	61	19,36	cyclictest	0	-21	swapper/1	20:25:21	1
3422912	99	61	19,36	cyclictest	0	-21	swapper/1	20:25:21	1
3422912	99	59	21,4	cyclictest	0	-21	swapper/1	21:40:21	1
3422912	99	58	25,29	cyclictest	3478497	-21	cron	00:35:00	1
3422912	99	58	21,32	cyclictest	0	-21	swapper/1	00:25:28	1
3422912	99	57	21,30	cyclictest	0	-21	swapper/1	20:15:01	1
3422912	99	57	20,5	cyclictest	0	-21	swapper/1	22:05:25	1
3422912	99	57	19,4	cyclictest	0	-21	swapper/1	21:00:28	1
3422912	99	57	16,7	cyclictest	23	1	ktimers/1	22:55:23	1
3422912	99	55	17,11	cyclictest	0	-21	swapper/1	20:25:00	1
3422912	99	54	24,3	cyclictest	0	-21	swapper/1	23:05:22	1
3422912	99	54	21,4	cyclictest	3460539	-21	unixbench_singl	22:45:31	1
3422912	99	54	16,11	cyclictest	0	-21	swapper/1	00:00:28	1
3422912	99	54	1,25	cyclictest	0	-21	swapper/1	23:50:23	1
3422912	99	54	11,38	cyclictest	0	-21	swapper/1	19:10:01	1
3422914	99	53	40,9	cyclictest	3458904	-21	sendmail	22:40:00	2
3422912	99	53	20,10	cyclictest	0	-21	swapper/1	23:10:19	1
3422912	99	53	16,9	cyclictest	0	-21	swapper/1	20:40:23	1
3422912	99	52	14,7	cyclictest	0	-21	swapper/1	23:35:18	1
3422912	99	52	1,26	cyclictest	0	-21	swapper/1	19:10:15	1
3422912	99	51	18,6	cyclictest	0	-21	swapper/1	20:00:29	1
3422907	99	51	41,6	cyclictest	3465764	-21	ls	23:20:01	0
3422907	99	50	33,14	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	20:55:24	0
3422907	99	50	29,17	cyclictest	3432266	-21	grep	20:00:27	0
3422912	99	49	2,3	cyclictest	0	-21	swapper/1	20:05:26	1
3422912	99	49	22,6	cyclictest	3478702	-21	/usr/sbin/munin	00:35:28	1
3422912	99	49	19,5	cyclictest	3430138	-21	latency_hist	19:50:02	1
3422912	99	49	17,7	cyclictest	23	1	ktimers/1	22:30:21	1
3422907	99	49	41,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	23:20:18	0
3422907	99	49	37,5	cyclictest	208	50	irq/208-8000000.ethernet	00:10:31	0
3422907	99	49	31,15	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	19:20:16	0
3422914	99	48	39,5	cyclictest	3434968	-21	grep	20:15:28	2
3422914	99	47	1,33	cyclictest	0	-21	swapper/2	00:05:00	2
3422914	99	46	1,34	cyclictest	0	-21	swapper/2	22:45:01	2
3422907	99	46	39,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:00:19	0
3422907	99	46	39,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:00:19	0
3422907	99	46	39,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	00:15:17	0
3422907	99	46	39,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	00:15:17	0
3422914	99	45	32,8	cyclictest	0	-21	swapper/2	23:40:30	2
3422914	99	45	1,29	cyclictest	0	-21	swapper/2	00:40:01	2
3422912	99	45	8,26	cyclictest	22	-21	rcuc/1	21:50:01	1
3422907	99	45	35,5	cyclictest	0	-21	swapper/0	21:15:22	0
3422907	99	45	31,9	cyclictest	0	-21	swapper/0	22:00:01	0
3422907	99	45	28,14	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:50:14	0
3422914	99	44	1,9	cyclictest	0	-21	swapper/2	20:20:02	2
3422914	99	44	1,2	cyclictest	0	-21	swapper/2	22:10:01	2
3422907	99	44	37,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:05:16	0
3422907	99	44	37,4	cyclictest	0	-21	swapper/0	19:35:17	0
3422907	99	44	36,5	cyclictest	0	-21	swapper/0	23:30:00	0
3422907	99	44	23,19	cyclictest	206	50	irq/252-8000000.ethernet	23:35:15	0
3422907	99	44	1,7	cyclictest	0	-21	swapper/0	22:45:01	0
3422907	99	43	36,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:10:15	0
3422907	99	43	34,4	cyclictest	0	-21	swapper/0	22:50:01	0
3422907	99	42	7,31	cyclictest	3436717	-21	unixbench_singl	20:25:29	0
3422907	99	42	7,31	cyclictest	3436717	-21	unixbench_singl	20:25:29	0
3422907	99	42	3,7	cyclictest	3476817	-21	grep	00:25:01	0
3422907	99	42	34,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	20:45:23	0
3422907	99	42	26,13	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	20:07:25	0
3422907	99	42	15,19	cyclictest	0	-21	swapper/0	23:10:01	0
3422914	99	41	33,4	cyclictest	0	-21	swapper/2	00:14:59	2
3422914	99	41	32,5	cyclictest	3450257	-21	unixbench_multi	21:45:29	2
3422914	99	41	31,5	cyclictest	0	-21	swapper/2	21:25:29	2
3422914	99	41	29,9	cyclictest	3471529	-21	grep	23:50:28	2
3422914	99	41	28,8	cyclictest	0	-21	swapper/2	19:15:29	2
3422914	99	41	28,8	cyclictest	0	-21	swapper/2	19:15:29	2
3422907	99	41	35,3	cyclictest	3448478	-21	sendmail_mailqu	21:35:26	0
3422907	99	41	33,5	cyclictest	3447047	-21	sed	21:30:00	0
3422907	99	41	30,8	cyclictest	0	-21	swapper/0	20:15:29	0
3422914	99	40	31,6	cyclictest	3448629	-21	grep	21:35:28	2
3422914	99	40	29,6	cyclictest	0	-21	swapper/2	23:25:19	2
3422914	99	40	1,4	cyclictest	0	-21	swapper/2	00:10:01	2
3422914	99	40	1,4	cyclictest	0	-21	swapper/2	00:10:01	2
3422907	99	40	33,4	cyclictest	0	-21	swapper/0	23:45:15	0
3422907	99	40	33,4	cyclictest	0	-21	swapper/0	21:10:17	0
3422907	99	40	17,19	cyclictest	0	-21	swapper/0	22:15:01	0
3422914	99	39	31,4	cyclictest	0	-21	swapper/2	22:20:27	2
3422914	99	39	28,5	cyclictest	0	-21	swapper/2	21:15:28	2
3422914	99	39	23,7	cyclictest	0	-21	swapper/2	22:05:28	2
3422907	99	39	29,6	cyclictest	0	-21	swapper/0	21:20:29	0
3422907	99	39	29,6	cyclictest	0	-21	swapper/0	21:20:29	0
3422907	99	39	2,7	cyclictest	3423723	-21	munin-node	19:15:01	0
3422907	99	39	2,33	cyclictest	3463161	-21	grep	23:00:30	0
3422914	99	38	30,5	cyclictest	3452955	-21	grep	22:00:30	2
3422914	99	38	30,5	cyclictest	3452955	-21	grep	22:00:29	2
3422914	99	38	30,4	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	00:15:25	2
3422914	99	38	30,4	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	00:15:25	2
3422914	99	38	28,6	cyclictest	3436727	-21	grep	20:25:29	2
3422914	99	38	28,6	cyclictest	3436727	-21	grep	20:25:29	2
3422914	99	38	25,9	cyclictest	3433288	-21	grep	20:05:28	2
3422914	99	38	24,9	cyclictest	31	1	ktimers/2	19:50:10	2
3422914	99	38	24,11	cyclictest	0	-21	swapper/2	00:30:26	2
3422914	99	38	1,2	cyclictest	0	-21	swapper/2	19:55:02	2
3422914	99	38	1,15	cyclictest	0	-21	swapper/2	20:50:01	2
3422912	99	38	31,4	cyclictest	3476811	-21	munin-plugin-st	00:25:00	1
3422907	99	38	31,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:35:11	0
3422907	99	38	31,4	cyclictest	0	-21	swapper/0	22:55:23	0
3422907	99	38	31,4	cyclictest	0	-21	swapper/0	19:45:00	0
3422907	99	38	30,5	cyclictest	0	-21	swapper/0	22:20:29	0
3422907	99	38	28,7	cyclictest	0	-21	swapper/0	20:45:00	0
3422907	99	38	27,4	cyclictest	0	-21	swapper/0	00:40:01	0
3422907	99	38	26,8	cyclictest	0	-21	swapper/0	19:50:27	0
3422907	99	38	1,4	cyclictest	3473612	-21	diskstats	00:05:21	0
3422907	99	38	1,4	cyclictest	3473612	-21	diskstats	00:05:21	0
3422914	99	37	27,5	cyclictest	3442665	-21	grep	21:00:30	2
3422914	99	37	25,8	cyclictest	0	-21	swapper/2	19:35:29	2
3422914	99	37	24,8	cyclictest	0	-21	swapper/2	20:50:31	2
3422914	99	37	23,10	cyclictest	0	-21	swapper/2	22:50:02	2
3422914	99	37	22,8	cyclictest	0	-21	swapper/2	19:45:30	2
3422914	99	37	20,14	cyclictest	31	1	ktimers/2	20:00:13	2
3422912	99	37	23,8	cyclictest	0	-21	swapper/1	00:15:21	1
3422912	99	37	23,8	cyclictest	0	-21	swapper/1	00:15:21	1
3422907	99	37	31,4	cyclictest	0	-21	swapper/0	00:00:11	0
3422907	99	37	30,4	cyclictest	206	50	irq/252-8000000.ethernet	00:30:23	0
3422907	99	37	30,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	20:30:24	0
3422907	99	37	25,8	cyclictest	0	-21	swapper/0	21:50:28	0
3422907	99	37	23,12	cyclictest	0	-21	swapper/0	20:35:15	0
3422907	99	37	1,34	cyclictest	0	-21	swapper/0	23:40:27	0
3422914	99	36	29,4	cyclictest	3472375	-21	unixbench_multi	23:55:28	2
3422914	99	36	29,4	cyclictest	0	-21	swapper/2	23:10:26	2
3422914	99	36	28,5	cyclictest	3463181	-21	grep	23:00:30	2
3422914	99	36	28,5	cyclictest	3423601	-21	grep	19:10:25	2
3422914	99	36	27,5	cyclictest	3455527	-21	sendmail	22:20:00	2
3422914	99	36	27,5	cyclictest	0	-21	swapper/2	22:30:00	2
3422912	99	36	26,5	cyclictest	0	-21	swapper/1	20:55:01	1
3422912	99	36	19,10	cyclictest	0	-21	swapper/1	22:15:23	1
3422907	99	36	3,4	cyclictest	3477462	-21	find	00:25:29	0
3422907	99	36	2,9	cyclictest	3447596	-21	tail	21:30:27	0
3422907	99	36	29,4	cyclictest	208	50	irq/208-8000000.ethernet	19:15:03	0
3422907	99	36	29,4	cyclictest	208	50	irq/208-8000000.ethernet	19:15:03	0
3422907	99	36	22,9	cyclictest	0	-21	swapper/0	19:35:01	0
3422907	99	36	20,14	cyclictest	0	-21	swapper/0	19:56:50	0
3422907	99	36	1,33	cyclictest	0	-21	swapper/0	21:05:00	0
3422914	99	35	26,5	cyclictest	3449454	-21	grep	21:40:28	2
3422914	99	35	26,4	cyclictest	0	-21	swapper/2	20:10:27	2
3422914	99	35	24,6	cyclictest	0	-21	swapper/2	23:05:28	2
3422914	99	35	24,5	cyclictest	0	-21	swapper/2	23:20:22	2
3422912	99	35	28,4	cyclictest	3441915	-21	munin-plugin-st	21:00:00	1
3422907	99	35	2,9	cyclictest	3456878	-21	memory	22:25:26	0
3422907	99	35	29,3	cyclictest	208	50	irq/208-8000000.ethernet	21:45:18	0
3422907	99	35	26,6	cyclictest	3443523	-21	grep	21:05:30	0
3422907	99	35	26,6	cyclictest	0	-21	swapper/0	21:40:28	0
3422907	99	35	23,8	cyclictest	0	-21	swapper/0	19:25:21	0
3422907	99	35	1,32	cyclictest	0	-21	swapper/0	23:50:17	0
3422907	99	35	1,32	cyclictest	0	-21	swapper/0	23:10:07	0
3422907	99	35	1,22	cyclictest	3434716	-1	kworker/0:1H+kblockd	20:55:01	0
3422914	99	34	26,4	cyclictest	0	-21	swapper/2	23:45:22	2
3422914	99	34	26,4	cyclictest	0	-21	swapper/2	21:55:27	2
3422914	99	34	22,8	cyclictest	0	-21	swapper/2	20:55:29	2
3422914	99	34	21,8	cyclictest	0	-21	swapper/2	21:10:30	2
3422912	99	34	26,4	cyclictest	0	-21	swapper/1	22:00:27	1
3422912	99	34	26,4	cyclictest	0	-21	swapper/1	22:00:27	1
3422912	99	34	1,27	cyclictest	0	-21	swapper/1	21:25:20	1
3422907	99	34	29,2	cyclictest	0	-21	swapper/0	23:34:59	0
3422907	99	34	28,4	cyclictest	208	50	irq/208-8000000.ethernet	23:55:23	0
3422907	99	34	26,4	cyclictest	0	-21	swapper/0	20:10:29	0
3422907	99	34	15,17	cyclictest	0	-21	swapper/0	19:45:16	0
3422914	99	33	25,5	cyclictest	0	-21	swapper/2	20:30:29	2
3422914	99	33	25,4	cyclictest	0	-21	swapper/2	00:20:29	2
3422914	99	33	24,5	cyclictest	0	-21	swapper/2	21:55:01	2
3422914	99	33	23,6	cyclictest	0	-21	swapper/2	23:35:25	2
3422914	99	33	23,5	cyclictest	0	-21	swapper/2	19:10:01	2
3422912	99	33	9,13	cyclictest	3465092	-21	/usr/sbin/munin	23:15:19	1
3422912	99	33	24,5	cyclictest	0	-21	swapper/1	19:15:27	1
3422912	99	33	24,5	cyclictest	0	-21	swapper/1	19:15:27	1
3422912	99	33	24,4	cyclictest	0	-21	swapper/1	20:45:21	1
3422912	99	33	23,6	cyclictest	3425693	-21	munin-plugin-st	19:25:00	1
3422912	99	33	21,7	cyclictest	0	-21	swapper/1	21:20:26	1
3422912	99	33	21,7	cyclictest	0	-21	swapper/1	21:20:26	1
3422907	99	33	26,4	cyclictest	0	-21	swapper/0	22:30:10	0
3422914	99	32	25,4	cyclictest	0	-21	swapper/2	20:35:28	2
3422914	99	32	23,6	cyclictest	0	-21	swapper/2	23:15:28	2
3422914	99	32	21,8	cyclictest	3468001	-21	ps	23:30:27	2
3422914	99	32	21,7	cyclictest	3425817	-21	grep	19:25:01	2
3422914	99	32	1,2	cyclictest	0	-21	swapper/2	22:55:02	2
3422912	99	32	19,8	cyclictest	0	-21	swapper/1	22:42:35	1
3422907	99	32	26,4	cyclictest	0	-21	swapper/0	20:20:30	0
3422907	99	32	18,3	cyclictest	3013996	-1	kworker/0:1H+kblockd	19:10:01	0
3422912	99	31	24,4	cyclictest	23	1	ktimers/1	21:35:19	1
3422912	99	31	24,3	cyclictest	0	-21	swapper/1	00:10:01	1
3422912	99	31	24,3	cyclictest	0	-21	swapper/1	00:10:01	1
3422914	99	30	21,5	cyclictest	0	-21	swapper/2	22:30:16	2
3422914	99	30	19,7	cyclictest	3461469	-21	grep	22:50:30	2
3422914	99	30	12,7	cyclictest	0	-21	swapper/2	19:30:27	2
3422912	99	30	22,5	cyclictest	0	-21	swapper/1	23:25:27	1
3422912	99	30	22,5	cyclictest	0	-21	swapper/1	19:30:20	1
3422914	99	29	23,4	cyclictest	3447638	-21	sendmail_mailqu	21:30:28	2
3422914	99	29	20,5	cyclictest	0	-21	swapper/2	20:40:27	2
3422914	99	29	16,8	cyclictest	0	-21	swapper/2	21:20:20	2
3422914	99	29	16,8	cyclictest	0	-21	swapper/2	21:20:19	2
3422914	99	29	1,26	cyclictest	0	-21	swapper/2	19:40:24	2
3422912	99	29	22,4	cyclictest	0	-21	swapper/1	19:35:18	1
3422912	99	29	20,4	cyclictest	0	-21	swapper/1	22:50:19	1
3422912	99	29	20,4	cyclictest	0	-21	swapper/1	20:15:26	1
3422914	99	28	21,4	cyclictest	0	-21	swapper/2	21:05:12	2
3422914	99	28	19,7	cyclictest	3477073	-21	df	00:25:20	2
3422912	99	28	21,4	cyclictest	3437802	-21	/usr/sbin/munin	20:35:25	1
3422912	99	28	21,4	cyclictest	0	-21	swapper/1	23:40:26	1
3422912	99	28	20,6	cyclictest	3444436	-21	sshd	21:14:25	1
3422912	99	28	17,7	cyclictest	0	-21	swapper/1	23:25:00	1
3422912	99	28	13,10	cyclictest	0	-21	swapper/1	22:25:28	1
3422912	99	28	1,25	cyclictest	0	-21	swapper/1	22:12:33	1
3422914	99	27	17,6	cyclictest	0	-21	swapper/2	19:30:01	2
3422912	99	27	18,4	cyclictest	47	-21	kauditd	21:20:00	1
3422912	99	27	1,24	cyclictest	0	-21	swapper/1	19:55:29	1
3422912	99	26	21,3	cyclictest	0	-21	swapper/1	19:26:33	1
3422912	99	26	18,6	cyclictest	23	1	ktimers/1	20:30:21	1
3422912	99	26	18,5	cyclictest	0	-21	swapper/1	21:55:00	1
3422912	99	26	17,6	cyclictest	274	-21	systemd-journal	22:40:00	1
3422912	99	26	16,4	cyclictest	0	-21	swapper/1	19:40:18	1
3422912	99	26	15,7	cyclictest	0	-21	swapper/1	21:35:01	1
3422912	99	26	15,6	cyclictest	0	-21	swapper/1	23:45:29	1
3422912	99	26	14,8	cyclictest	0	-21	swapper/1	23:00:28	1
3422912	99	26	1,2	cyclictest	0	-21	swapper/1	23:35:00	1
3422912	99	25	17,4	cyclictest	0	-21	swapper/1	21:05:23	1
3422912	99	25	16,4	cyclictest	0	-21	swapper/1	22:20:12	1
3422912	99	24	19,4	cyclictest	0	-21	swapper/1	00:14:25	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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