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 Sun May 03, 2026 12:44:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1466219	99	59	2,5	cyclictest	1474174	-21	grep	07:50:28	0
1466219	99	54	46,4	cyclictest	206	50	irq/252-8000000.ethernet	07:10:20	0
1466221	99	52	25,18	cyclictest	0	-21	swapper/1	12:30:21	1
1466219	99	52	43,3	cyclictest	1506562	-21	kworker/u8:0+events_power_efficient	11:10:12	0
1466223	99	51	43,5	cyclictest	1514356	-21	munin-plugin-st	11:49:59	2
1466221	99	49	41,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	10:35:25	1
1466219	99	48	40,4	cyclictest	1471723	-21	apt-key	07:40:01	0
1466219	99	47	40,4	cyclictest	206	50	irq/252-8000000.ethernet	08:15:24	0
1466219	99	47	39,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	12:00:29	0
1466219	99	47	1,7	cyclictest	0	-21	swapper/0	07:20:01	0
1466219	99	47	1,7	cyclictest	0	-21	swapper/0	07:20:01	0
1466221	99	46	15,20	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	07:39:59	1
1466219	99	46	6,37	cyclictest	0	-21	swapper/0	09:00:28	0
1466219	99	46	39,4	cyclictest	206	50	irq/252-8000000.ethernet	10:55:19	0
1466219	99	46	39,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	12:10:19	0
1466221	99	45	36,6	cyclictest	1477495	-21	grep	08:10:28	1
1466219	99	45	38,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	07:40:25	0
1466219	99	45	37,4	cyclictest	1500621	-21	latency_hist	10:30:01	0
1466219	99	45	33,8	cyclictest	0	-21	swapper/0	10:05:30	0
1466223	99	44	34,6	cyclictest	0	-21	swapper/2	11:15:00	2
1466223	99	44	32,8	cyclictest	0	-21	swapper/2	11:50:29	2
1466221	99	44	32,7	cyclictest	0	-21	swapper/1	11:00:29	1
1466219	99	44	36,5	cyclictest	0	-21	swapper/0	09:30:28	0
1466219	99	44	36,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	09:25:25	0
1466219	99	44	3,5	cyclictest	1478980	-21	/usr/sbin/munin	08:20:26	0
1466219	99	44	31,8	cyclictest	0	-21	swapper/0	11:00:29	0
1466219	99	44	1,41	cyclictest	0	-21	swapper/0	08:45:06	0
1466219	99	44	1,41	cyclictest	0	-21	swapper/0	08:45:05	0
1466223	99	43	34,5	cyclictest	1503949	-21	munin-plugin-st	10:50:00	2
1466223	99	43	32,7	cyclictest	1500531	-21	grep	10:25:31	2
1466219	99	43	36,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	07:55:21	0
1466219	99	43	35,4	cyclictest	0	-21	swapper/0	11:50:27	0
1466219	99	43	20,8	cyclictest	238	50	irq/422-mmc1	08:10:01	0
1466219	99	43	1,5	cyclictest	1487041	-21	users	09:05:30	0
1466223	99	42	34,5	cyclictest	0	-21	swapper/2	10:10:25	2
1466223	99	42	32,7	cyclictest	0	-21	swapper/2	10:05:30	2
1466223	99	42	32,5	cyclictest	0	-21	swapper/2	08:35:29	2
1466223	99	42	1,34	cyclictest	30	-21	rcuc/2	07:15:04	2
1466223	99	42	1,34	cyclictest	30	-21	rcuc/2	07:15:03	2
1466221	99	42	32,6	cyclictest	0	-21	swapper/1	07:50:17	1
1466221	99	42	27,8	cyclictest	0	-21	swapper/1	09:54:59	1
1466221	99	42	26,9	cyclictest	0	-21	swapper/1	11:35:29	1
1466219	99	42	35,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	12:35:19	0
1466219	99	42	34,4	cyclictest	208	50	irq/208-8000000.ethernet	10:30:28	0
1466219	99	42	34,4	cyclictest	0	-21	swapper/0	09:20:21	0
1466219	99	42	32,7	cyclictest	1473305	-21	grep	07:45:28	0
1466219	99	42	32,7	cyclictest	1473305	-21	grep	07:45:28	0
1466219	99	42	30,9	cyclictest	0	-21	swapper/0	08:55:28	0
1466219	99	42	30,8	cyclictest	1510792	-21	grep	11:25:27	0
1466219	99	42	2,37	cyclictest	1519822	-21	lsblk	12:20:19	0
1466223	99	41	32,4	cyclictest	0	-21	swapper/2	11:30:29	2
1466221	99	41	30,6	cyclictest	0	-21	swapper/1	11:30:17	1
1466221	99	41	30,6	cyclictest	0	-21	swapper/1	10:15:26	1
1466221	99	41	30,5	cyclictest	0	-21	swapper/1	07:15:01	1
1466221	99	41	28,9	cyclictest	0	-21	swapper/1	09:20:01	1
1466219	99	41	32,6	cyclictest	0	-21	swapper/0	10:45:26	0
1466219	99	41	29,8	cyclictest	0	-21	swapper/0	09:35:30	0
1466219	99	41	2,3	cyclictest	0	-21	swapper/0	10:10:26	0
1466223	99	40	32,5	cyclictest	0	-21	swapper/2	12:00:00	2
1466223	99	40	31,5	cyclictest	1478441	-21	sh	08:20:00	2
1466223	99	40	31,5	cyclictest	0	-21	swapper/2	08:50:29	2
1466221	99	40	32,4	cyclictest	0	-21	swapper/1	07:55:20	1
1466221	99	40	30,5	cyclictest	0	-21	swapper/1	10:55:02	1
1466221	99	40	29,8	cyclictest	0	-21	swapper/1	11:14:59	1
1466221	99	40	28,6	cyclictest	1500518	-21	grep	10:25:30	1
1466221	99	40	27,7	cyclictest	1476692	-21	grep	08:05:29	1
1466219	99	40	33,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	09:50:13	0
1466219	99	40	33,4	cyclictest	0	-21	swapper/0	09:40:23	0
1466219	99	40	33,4	cyclictest	0	-21	swapper/0	09:40:23	0
1466219	99	40	30,5	cyclictest	0	-21	swapper/0	10:55:02	0
1466219	99	40	29,8	cyclictest	1498884	-21	sendmail	10:20:00	0
1466219	99	40	29,8	cyclictest	0	-21	swapper/0	12:25:29	0
1466219	99	40	28,7	cyclictest	0	-21	swapper/0	11:30:29	0
1466219	99	40	27,8	cyclictest	0	-21	swapper/0	10:40:29	0
1466219	99	40	27,10	cyclictest	1481821	-21	munin-plugin-st	08:39:59	0
1466219	99	40	2,35	cyclictest	0	-21	swapper/0	12:30:24	0
1466219	99	40	1,36	cyclictest	0	-21	swapper/0	10:35:19	0
1466223	99	39	9,21	cyclictest	0	-21	swapper/2	08:50:01	2
1466223	99	39	25,9	cyclictest	0	-21	swapper/2	12:20:27	2
1466223	99	39	22,11	cyclictest	0	-21	swapper/2	07:30:21	2
1466221	99	39	28,7	cyclictest	1515145	-21	grep	11:50:29	1
1466219	99	39	33,3	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	11:35:14	0
1466219	99	39	33,3	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	08:00:15	0
1466219	99	39	32,4	cyclictest	0	-21	swapper/0	08:25:18	0
1466219	99	39	1,3	cyclictest	0	-21	swapper/0	07:20:20	0
1466223	99	38	31,4	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	09:25:31	2
1466223	99	38	28,7	cyclictest	1492080	-21	grep	09:35:29	2
1466223	99	38	28,6	cyclictest	1480861	-21	grep	08:30:28	2
1466223	99	38	27,8	cyclictest	0	-21	swapper/2	08:05:28	2
1466223	99	38	27,7	cyclictest	0	-21	swapper/2	09:50:28	2
1466223	99	38	27,7	cyclictest	0	-21	swapper/2	08:00:28	2
1466223	99	38	27,6	cyclictest	0	-21	swapper/2	08:40:20	2
1466223	99	38	26,8	cyclictest	1519465	-21	grep	12:15:28	2
1466223	99	38	26,8	cyclictest	1519465	-21	grep	12:15:28	2
1466223	99	38	26,8	cyclictest	0	-21	swapper/2	07:20:27	2
1466223	99	38	26,6	cyclictest	30	-21	rcuc/2	07:40:28	2
1466223	99	38	24,9	cyclictest	0	-21	swapper/2	09:20:26	2
1466223	99	38	23,11	cyclictest	31	1	ktimers/2	09:45:12	2
1466221	99	38	30,5	cyclictest	0	-21	swapper/1	08:30:27	1
1466221	99	38	30,4	cyclictest	0	-21	swapper/1	08:55:18	1
1466221	99	38	29,5	cyclictest	1516064	-21	grep	11:55:30	1
1466219	99	38	33,2	cyclictest	0	-21	swapper/0	07:25:21	0
1466219	99	38	28,7	cyclictest	0	-21	swapper/0	08:40:28	0
1466219	99	38	1,3	cyclictest	1515487	-21	apt-get	11:55:14	0
1466219	99	38	1,3	cyclictest	0	-21	swapper/0	11:40:19	0
1466219	99	38	1,3	cyclictest	0	-21	swapper/0	08:50:18	0
1466219	99	38	1,35	cyclictest	0	-21	swapper/0	11:21:56	0
1466219	99	38	1,35	cyclictest	0	-21	swapper/0	11:21:55	0
1466219	99	38	1,35	cyclictest	0	-21	swapper/0	08:05:29	0
1466219	99	38	1,2	cyclictest	1494864	-21	apt-get	09:55:11	0
1466219	99	38	0,2	cyclictest	1513795	-21	/usr/sbin/munin	11:45:20	0
1466223	99	37	30,4	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	10:20:22	2
1466223	99	37	30,4	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	10:20:22	2
1466223	99	37	29,4	cyclictest	0	-21	swapper/2	08:45:27	2
1466223	99	37	28,5	cyclictest	0	-21	swapper/2	12:25:19	2
1466223	99	37	27,6	cyclictest	1522781	-21	grep	12:35:29	2
1466223	99	37	27,6	cyclictest	1502193	-21	grep	10:35:30	2
1466223	99	37	26,7	cyclictest	1498784	-21	grep	10:15:28	2
1466223	99	37	26,7	cyclictest	0	-21	swapper/2	10:30:27	2
1466223	99	37	26,5	cyclictest	0	-21	swapper/2	08:20:19	2
1466223	99	37	24,8	cyclictest	1491233	-21	grep	09:30:28	2
1466221	99	37	31,3	cyclictest	1509187	-21	sh	11:19:59	1
1466221	99	37	28,6	cyclictest	1521112	-21	grep	12:25:29	1
1466221	99	37	27,5	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	10:45:24	1
1466221	99	37	26,5	cyclictest	1519397	-21	grep	12:15:28	1
1466221	99	37	26,5	cyclictest	1519397	-21	grep	12:15:28	1
1466221	99	37	25,6	cyclictest	0	-21	swapper/1	08:50:01	1
1466221	99	37	25,6	cyclictest	0	-21	swapper/1	08:50:01	1
1466221	99	37	19,10	cyclictest	0	-21	swapper/1	10:05:21	1
1466219	99	37	2,9	cyclictest	1493392	-21	/usr/sbin/munin	09:45:22	0
1466219	99	37	1,34	cyclictest	0	-21	swapper/0	09:10:11	0
1466219	99	37	1,29	cyclictest	1466380	-21	latency_hist	07:10:00	0
1466223	99	36	29,4	cyclictest	0	-21	swapper/2	11:15:21	2
1466223	99	36	28,5	cyclictest	0	-21	swapper/2	12:05:21	2
1466223	99	36	27,6	cyclictest	1507350	-21	grep	11:05:28	2
1466223	99	36	25,7	cyclictest	0	-21	swapper/2	12:00:29	2
1466223	99	36	21,9	cyclictest	0	-21	swapper/2	12:30:28	2
1466221	99	36	28,4	cyclictest	0	-21	swapper/1	07:40:19	1
1466221	99	36	27,5	cyclictest	1475841	-21	grep	08:00:29	1
1466221	99	36	26,5	cyclictest	0	-21	swapper/1	07:20:20	1
1466219	99	36	9,25	cyclictest	13	1	ktimers/0	11:05:17	0
1466219	99	36	30,4	cyclictest	208	50	irq/208-8000000.ethernet	11:20:00	0
1466219	99	36	28,5	cyclictest	0	-21	swapper/0	09:15:28	0
1466219	99	36	26,7	cyclictest	0	-21	swapper/0	12:05:27	0
1466219	99	36	25,8	cyclictest	1518959	-21	sh	12:15:19	0
1466219	99	36	25,8	cyclictest	1518959	-21	sh	12:15:19	0
1466219	99	36	20,14	cyclictest	0	-21	swapper/0	10:00:25	0
1466219	99	36	1,33	cyclictest	0	-21	swapper/0	07:30:18	0
1466223	99	35	4,24	cyclictest	1495384	-21	grep	09:55:29	2
1466223	99	35	26,5	cyclictest	0	-21	swapper/2	11:25:28	2
1466223	99	35	25,5	cyclictest	0	-21	swapper/2	07:10:01	2
1466223	99	35	24,8	cyclictest	0	-21	swapper/2	11:00:28	2
1466223	99	35	24,7	cyclictest	0	-21	swapper/2	07:45:27	2
1466223	99	35	24,7	cyclictest	0	-21	swapper/2	07:45:27	2
1466223	99	35	1,27	cyclictest	1502469	-21	/usr/sbin/munin	10:40:12	2
1466221	99	35	27,5	cyclictest	1501325	-21	grep	10:30:26	1
1466221	99	35	25,8	cyclictest	1473282	-21	unixbench_multi	07:45:29	1
1466221	99	35	25,8	cyclictest	1473282	-21	unixbench_multi	07:45:28	1
1466221	99	35	25,6	cyclictest	1480081	-21	grep	08:25:30	1
1466221	99	35	25,5	cyclictest	0	-21	swapper/1	10:00:27	1
1466221	99	35	24,5	cyclictest	1522875	-21	sh	12:39:59	1
1466221	99	35	23,4	cyclictest	0	-21	swapper/1	08:20:00	1
1466221	99	35	22,8	cyclictest	0	-21	swapper/1	09:25:29	1
1466221	99	35	21,10	cyclictest	0	-21	swapper/1	09:40:26	1
1466221	99	35	21,10	cyclictest	0	-21	swapper/1	09:40:25	1
1466223	99	34	25,5	cyclictest	0	-21	swapper/2	11:35:21	2
1466223	99	34	25,5	cyclictest	0	-21	swapper/2	10:55:20	2
1466223	99	34	23,8	cyclictest	0	-21	swapper/2	11:20:28	2
1466223	99	34	23,8	cyclictest	0	-21	swapper/2	11:20:28	2
1466223	99	34	16,12	cyclictest	31	1	ktimers/2	08:10:13	2
1466221	99	34	26,5	cyclictest	1514350	-21	sh	11:50:00	1
1466221	99	34	26,5	cyclictest	0	-21	swapper/1	09:35:00	1
1466221	99	34	24,7	cyclictest	1484429	-21	grep	08:50:30	1
1466221	99	34	23,8	cyclictest	1482605	-21	grep	08:40:29	1
1466221	99	34	23,8	cyclictest	0	-21	swapper/1	09:35:30	1
1466221	99	34	23,8	cyclictest	0	-21	swapper/1	09:00:28	1
1466221	99	34	21,6	cyclictest	1495385	-21	grep	09:55:29	1
1466221	99	34	1,27	cyclictest	1517182	-21	/usr/sbin/munin	12:05:26	1
1466219	99	34	1,31	cyclictest	0	-21	swapper/0	10:20:11	0
1466219	99	34	1,31	cyclictest	0	-21	swapper/0	10:20:11	0
1466223	99	33	25,5	cyclictest	1487798	-21	grep	09:10:28	2
1466223	99	33	24,4	cyclictest	1469692	-21	ptp4l	07:25:27	2
1466223	99	33	23,6	cyclictest	0	-21	swapper/2	11:40:21	2
1466223	99	33	21,8	cyclictest	1488641	-21	grep	09:15:28	2
1466223	99	33	15,14	cyclictest	31	1	ktimers/2	08:25:14	2
1466223	99	33	1,26	cyclictest	0	-21	swapper/2	08:55:15	2
1466221	99	33	25,5	cyclictest	0	-21	swapper/1	12:20:28	1
1466221	99	33	24,5	cyclictest	1501405	-21	kworker/u8:1-events_freezable_power_	11:00:01	1
1466221	99	33	22,8	cyclictest	0	-21	swapper/1	09:45:26	1
1466221	99	33	22,8	cyclictest	0	-21	swapper/1	09:10:27	1
1466221	99	33	2,15	cyclictest	1516892	-21	grep	12:00:28	1
1466221	99	33	1,3	cyclictest	1510829	-21	unixbench_singl	11:25:28	1
1466219	99	33	24,6	cyclictest	0	-21	swapper/0	08:30:27	0
1466223	99	32	5,13	cyclictest	1473996	-21	ptp4l	07:50:27	2
1466223	99	32	26,3	cyclictest	1486960	-21	unixbench_multi	09:05:30	2
1466223	99	32	21,8	cyclictest	0	-21	swapper/2	09:00:28	2
1466223	99	32	19,8	cyclictest	0	-21	swapper/2	07:15:01	2
1466223	99	32	18,10	cyclictest	0	-21	swapper/2	07:55:22	2
1466221	99	32	24,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	12:10:22	1
1466221	99	32	23,6	cyclictest	0	-21	swapper/1	11:05:29	1
1466221	99	32	21,7	cyclictest	0	-21	swapper/1	07:30:30	1
1466221	99	32	19,10	cyclictest	1469338	-21	dropbear	07:25:18	1
1466221	99	32	11,15	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	10:10:24	1
1466223	99	31	24,5	cyclictest	1471017	-21	df	07:35:15	2
1466223	99	31	24,4	cyclictest	0	-21	swapper/2	10:00:27	2
1466223	99	31	23,4	cyclictest	0	-21	swapper/2	10:50:29	2
1466221	99	31	22,6	cyclictest	1468109	-21	grep	07:15:30	1
1466221	99	31	22,6	cyclictest	1468109	-21	grep	07:15:30	1
1466221	99	30	22,5	cyclictest	0	-21	swapper/1	09:20:21	1
1466221	99	30	18,8	cyclictest	0	-21	swapper/1	11:40:30	1
1466221	99	29	2,19	cyclictest	1466245	-21	latency_hist	07:10:00	1
1466221	99	29	18,8	cyclictest	0	-21	swapper/1	11:20:26	1
1466221	99	29	18,8	cyclictest	0	-21	swapper/1	11:20:25	1
1466221	99	29	17,8	cyclictest	0	-21	swapper/1	08:35:29	1
1466221	99	29	17,10	cyclictest	0	-21	swapper/1	10:40:28	1
1466223	99	28	5,13	cyclictest	1492927	-21	grep	09:40:28	2
1466223	99	28	5,13	cyclictest	1492927	-21	grep	09:40:28	2
1466223	99	28	16,8	cyclictest	0	-21	swapper/2	12:10:24	2
1466221	99	28	20,4	cyclictest	0	-21	swapper/1	08:20:26	1
1466221	99	27	20,4	cyclictest	0	-21	swapper/1	09:05:29	1
1466221	99	27	18,6	cyclictest	23	1	ktimers/1	10:20:14	1
1466221	99	27	18,6	cyclictest	23	1	ktimers/1	10:20:13	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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