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 May 26, 2026 00:44:49)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
374908	99	70	0,38	cyclictest	0	-21	swapper/1	19:15:01	1
374907	99	70	1,59	cyclictest	0	-21	swapper/0	23:15:12	0
374907	99	70	1,59	cyclictest	0	-21	swapper/0	23:15:12	0
374907	99	65	1,61	cyclictest	0	-21	swapper/0	19:30:11	0
374911	99	56	49,4	cyclictest	31	1	ktimers/2	00:10:01	2
374911	99	56	49,4	cyclictest	31	1	ktimers/2	00:10:01	2
374907	99	56	1,53	cyclictest	0	-21	swapper/0	20:15:13	0
374911	99	54	8,11	cyclictest	30	-21	rcuc/2	23:05:00	2
374907	99	52	44,5	cyclictest	393051	-21	munin-plugin-st	20:55:00	0
374908	99	51	36,9	cyclictest	0	-21	swapper/1	23:10:29	1
374907	99	51	39,9	cyclictest	0	-21	swapper/0	00:30:00	0
374907	99	51	35,10	cyclictest	0	-21	swapper/0	22:00:00	0
374907	99	50	43,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:20:18	0
374907	99	50	32,15	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	19:40:23	0
374907	99	49	15,31	cyclictest	397481	-21	latency_hist	21:20:02	0
374907	99	48	40,5	cyclictest	405810	-21	munin-plugin-st	22:10:00	0
374908	99	47	36,7	cyclictest	410787	-21	unixbench_multi	22:35:28	1
374908	99	47	35,8	cyclictest	0	-21	swapper/1	23:40:01	1
374908	99	47	31,10	cyclictest	0	-21	swapper/1	20:15:30	1
374908	99	47	26,14	cyclictest	0	-21	swapper/1	00:15:29	1
374911	99	46	35,8	cyclictest	0	-21	swapper/2	23:45:00	2
374911	99	46	10,32	cyclictest	0	-21	swapper/2	19:20:02	2
374908	99	46	11,27	cyclictest	0	-21	swapper/1	20:55:29	1
374907	99	46	32,11	cyclictest	431332	-21	munin-plugin-st	00:40:01	0
374907	99	46	1,2	cyclictest	0	-21	swapper/0	21:45:01	0
374907	99	46	10,4	cyclictest	13	1	ktimers/0	22:53:18	0
374907	99	46	10,4	cyclictest	13	1	ktimers/0	22:53:18	0
374911	99	45	29,13	cyclictest	31	1	ktimers/2	23:55:13	2
374908	99	45	13,4	cyclictest	0	-21	swapper/1	23:50:28	1
374908	99	45	1,33	cyclictest	431220	-21	unixbench_multi	00:35:29	1
374907	99	45	38,4	cyclictest	206	50	irq/252-8000000.ethernet	23:55:25	0
374907	99	45	38,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	23:05:28	0
374907	99	45	37,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	19:45:24	0
374907	99	45	35,6	cyclictest	197	50	irq/27-20000000.i2c	23:25:27	0
374907	99	45	28,14	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	22:47:18	0
374907	99	45	1,42	cyclictest	0	-21	swapper/0	23:35:12	0
374907	99	45	1,14	cyclictest	0	-21	swapper/0	19:25:20	0
374907	99	45	1,14	cyclictest	0	-21	swapper/0	19:25:20	0
374908	99	44	1,36	cyclictest	22	-21	rcuc/1	22:05:28	1
374907	99	44	37,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	21:35:27	0
374907	99	44	36,5	cyclictest	0	-21	swapper/0	20:45:00	0
374907	99	44	36,4	cyclictest	0	-21	swapper/0	23:20:28	0
374907	99	44	1,4	cyclictest	376284	-21	unixbench_multi	19:15:10	0
374908	99	43	38,3	cyclictest	14	-21	rcu_preempt	19:35:01	1
374908	99	43	1,34	cyclictest	380268	-21	unixbench_multi	19:35:27	1
374907	99	43	38,3	cyclictest	0	-21	swapper/0	20:45:25	0
374907	99	43	38,3	cyclictest	0	-21	swapper/0	20:45:25	0
374907	99	43	36,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	00:30:17	0
374907	99	43	32,8	cyclictest	375019	-21	apt-key	19:10:02	0
374907	99	43	2,38	cyclictest	0	-21	swapper/0	23:40:19	0
374907	99	43	1,4	cyclictest	386292	-21	munin-run	20:15:00	0
374907	99	43	1,40	cyclictest	0	-21	swapper/0	00:20:30	0
374911	99	42	32,7	cyclictest	375782	-21	munin-plugin-st	19:15:00	2
374911	99	42	30,9	cyclictest	387146	-21	sendmail	20:19:59	2
374911	99	42	27,8	cyclictest	0	-21	swapper/2	19:25:30	2
374911	99	42	27,8	cyclictest	0	-21	swapper/2	19:25:30	2
374911	99	42	27,10	cyclictest	0	-21	swapper/2	20:10:29	2
374911	99	42	23,13	cyclictest	31	1	ktimers/2	20:35:12	2
374908	99	42	30,8	cyclictest	0	-21	swapper/1	21:10:27	1
374908	99	42	30,7	cyclictest	397291	-21	http	21:20:01	1
374908	99	42	29,8	cyclictest	274	-21	systemd-journal	21:40:00	1
374908	99	42	28,6	cyclictest	409957	-21	grep	22:30:30	1
374907	99	42	2,5	cyclictest	425492	-21	sed	00:05:01	0
374907	99	42	1,38	cyclictest	411090	-21	grep	22:40:17	0
374907	99	42	1,37	cyclictest	0	-21	swapper/0	20:00:19	0
374907	99	42	1,2	cyclictest	0	-21	swapper/0	21:05:01	0
374911	99	41	32,4	cyclictest	0	-21	swapper/2	21:25:30	2
374911	99	41	30,7	cyclictest	0	-21	swapper/2	00:25:30	2
374911	99	41	29,7	cyclictest	411683	-21	unixbench_singl	22:40:30	2
374911	99	41	24,9	cyclictest	0	-21	swapper/2	21:00:28	2
374911	99	41	22,11	cyclictest	0	-21	swapper/2	20:40:27	2
374911	99	41	19,10	cyclictest	31	1	ktimers/2	21:20:16	2
374908	99	41	29,9	cyclictest	0	-21	swapper/1	21:25:01	1
374908	99	41	28,8	cyclictest	0	-21	swapper/1	22:20:30	1
374908	99	41	27,9	cyclictest	0	-21	swapper/1	20:30:19	1
374907	99	41	35,3	cyclictest	0	-21	swapper/0	21:10:01	0
374907	99	41	33,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	00:10:17	0
374907	99	41	30,8	cyclictest	396429	-21	munin-plugin-st	21:15:00	0
374907	99	41	2,5	cyclictest	427557	-21	irqstats	00:15:24	0
374907	99	41	1,4	cyclictest	0	-21	swapper/0	23:05:01	0
374907	99	41	1,38	cyclictest	0	-21	swapper/0	21:20:17	0
374911	99	40	29,6	cyclictest	396323	-21	grep	21:10:27	2
374908	99	40	28,8	cyclictest	0	-21	swapper/1	19:25:30	1
374908	99	40	28,8	cyclictest	0	-21	swapper/1	19:25:30	1
374908	99	40	28,7	cyclictest	0	-21	swapper/1	22:50:28	1
374908	99	40	28,7	cyclictest	0	-21	swapper/1	22:50:28	1
374908	99	40	27,9	cyclictest	0	-21	swapper/1	20:45:29	1
374908	99	40	27,9	cyclictest	0	-21	swapper/1	20:45:29	1
374908	99	40	27,8	cyclictest	0	-21	swapper/1	21:05:29	1
374908	99	40	25,9	cyclictest	0	-21	swapper/1	22:05:01	1
374908	99	40	16,12	cyclictest	394705	-21	grep	21:00:29	1
374907	99	40	34,4	cyclictest	0	-21	swapper/0	19:55:13	0
374907	99	40	30,4	cyclictest	238	50	irq/422-mmc1	19:15:00	0
374907	99	40	1,4	cyclictest	402052	-21	/usr/sbin/munin	21:45:23	0
374907	99	40	1,34	cyclictest	0	-21	swapper/0	23:00:01	0
374911	99	39	9,28	cyclictest	404675	-21	phc2sys-jitter	22:00:27	2
374911	99	39	27,8	cyclictest	425346	-21	grep	00:00:30	2
374911	99	39	27,7	cyclictest	0	-21	swapper/2	20:25:30	2
374908	99	39	4,10	cyclictest	418642	-21	gpgconf	23:25:01	1
374908	99	39	29,5	cyclictest	0	-21	swapper/1	23:15:30	1
374908	99	39	29,5	cyclictest	0	-21	swapper/1	23:15:30	1
374908	99	39	28,8	cyclictest	374909	-21	cut	19:10:00	1
374908	99	39	26,9	cyclictest	0	-21	swapper/1	23:25:29	1
374908	99	39	26,8	cyclictest	0	-21	swapper/1	00:20:29	1
374908	99	39	1,4	cyclictest	0	-21	swapper/1	20:25:01	1
374907	99	39	32,4	cyclictest	208	50	irq/208-8000000.ethernet	20:35:27	0
374907	99	39	32,4	cyclictest	0	-21	swapper/0	19:35:26	0
374907	99	39	2,32	cyclictest	389626	-21	grep	20:30:28	0
374907	99	39	1,36	cyclictest	0	-21	swapper/0	22:10:18	0
374907	99	39	1,36	cyclictest	0	-21	swapper/0	22:10:17	0
374907	99	39	1,36	cyclictest	0	-21	swapper/0	21:50:23	0
374907	99	39	1,36	cyclictest	0	-21	swapper/0	20:55:18	0
374907	99	39	1,36	cyclictest	0	-21	swapper/0	19:20:25	0
374907	99	39	1,35	cyclictest	0	-21	swapper/0	22:00:22	0
374911	99	38	7,4	cyclictest	0	-21	swapper/2	22:00:01	2
374911	99	38	30,4	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	22:55:24	2
374911	99	38	29,6	cyclictest	430374	-21	unixbench_multi	00:30:28	2
374911	99	38	21,12	cyclictest	31	1	ktimers/2	22:25:12	2
374908	99	38	4,2	cyclictest	0	-21	swapper/1	00:30:01	1
374908	99	38	30,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	22:15:22	1
374908	99	38	30,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	22:10:24	1
374908	99	38	30,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	22:10:24	1
374908	99	38	29,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	00:05:29	1
374908	99	38	29,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	00:05:29	1
374908	99	38	2,30	cyclictest	0	-21	swapper/1	21:30:28	1
374907	99	38	32,3	cyclictest	416738	-21	sed	23:10:29	0
374907	99	38	31,4	cyclictest	0	-21	swapper/0	21:30:13	0
374907	99	38	1,35	cyclictest	410489	-21	irqstats	22:35:23	0
374907	99	38	1,35	cyclictest	0	-21	swapper/0	22:15:20	0
374907	99	38	1,35	cyclictest	0	-21	swapper/0	20:25:16	0
374907	99	38	1,34	cyclictest	422366	-21	tune2fs	23:45:20	0
374911	99	37	26,7	cyclictest	0	-21	swapper/2	21:15:29	2
374911	99	37	26,6	cyclictest	413344	-21	grep	22:50:28	2
374911	99	37	26,6	cyclictest	413344	-21	grep	22:50:28	2
374911	99	37	22,10	cyclictest	31	1	ktimers/2	00:10:11	2
374908	99	37	30,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	23:05:22	1
374908	99	37	29,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	22:40:30	1
374908	99	37	25,8	cyclictest	0	-21	swapper/1	19:45:27	1
374908	99	37	22,10	cyclictest	0	-21	swapper/1	20:10:17	1
374908	99	37	1,29	cyclictest	0	-21	swapper/1	22:45:23	1
374907	99	37	28,5	cyclictest	0	-21	swapper/0	22:25:29	0
374907	99	37	26,6	cyclictest	0	-21	swapper/0	23:30:28	0
374907	99	37	1,34	cyclictest	0	-21	swapper/0	19:50:14	0
374911	99	36	4,11	cyclictest	0	-21	swapper/2	21:10:01	2
374911	99	36	30,4	cyclictest	1261	-21	rs:main		2
374911	99	36	26,7	cyclictest	0	-21	swapper/2	22:35:28	2
374911	99	36	20,11	cyclictest	31	1	ktimers/2	22:20:12	2
374908	99	36	22,9	cyclictest	0	-21	swapper/1	21:59:59	1
374908	99	36	22,7	cyclictest	0	-21	swapper/1	23:00:00	1
374908	99	36	19,9	cyclictest	0	-21	swapper/1	19:50:26	1
374908	99	36	1,33	cyclictest	0	-21	swapper/1	23:00:28	1
374908	99	36	1,29	cyclictest	383645	-21	unixbench_multi	19:55:28	1
374907	99	36	27,5	cyclictest	0	-21	swapper/0	23:50:28	0
374907	99	36	26,6	cyclictest	0	-21	swapper/0	20:20:29	0
374907	99	36	25,5	cyclictest	0	-21	swapper/0	00:05:21	0
374907	99	36	25,5	cyclictest	0	-21	swapper/0	00:05:21	0
374907	99	36	19,9	cyclictest	0	-21	swapper/0	21:30:00	0
374907	99	36	1,33	cyclictest	0	-21	swapper/0	20:05:26	0
374907	99	36	1,33	cyclictest	0	-21	swapper/0	20:05:26	0
374911	99	35	7,3	cyclictest	0	-21	swapper/2	21:45:27	2
374911	99	35	28,4	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	19:40:23	2
374911	99	35	27,5	cyclictest	0	-21	swapper/2	19:35:14	2
374911	99	35	24,7	cyclictest	0	-21	swapper/2	21:40:27	2
374911	99	35	23,9	cyclictest	417839	-21	/usr/sbin/munin	23:20:24	2
374911	99	35	23,7	cyclictest	0	-21	swapper/2	22:45:30	2
374911	99	35	22,7	cyclictest	383646	-21	grep	19:55:28	2
374911	99	35	1,3	cyclictest	0	-21	swapper/2	20:50:01	2
374911	99	35	1,3	cyclictest	0	-21	swapper/2	20:50:01	2
374911	99	35	1,28	cyclictest	0	-21	swapper/2	20:30:18	2
374908	99	35	28,5	cyclictest	401593	-21	munin-plugin-st	21:45:00	1
374908	99	35	23,7	cyclictest	0	-21	swapper/1	20:25:29	1
374908	99	35	22,8	cyclictest	0	-21	swapper/1	20:35:27	1
374907	99	35	26,4	cyclictest	0	-21	swapper/0	22:30:27	0
374911	99	34	26,4	cyclictest	0	-21	swapper/2	23:30:26	2
374911	99	34	18,10	cyclictest	31	1	ktimers/2	23:25:03	2
374911	99	34	1,6	cyclictest	0	-21	swapper/2	21:35:01	2
374908	99	34	9,11	cyclictest	408335	-21	kworker/u8:1+events_power_efficient	22:30:01	1
374908	99	34	4,12	cyclictest	0	-21	swapper/1	23:45:01	1
374908	99	34	24,6	cyclictest	0	-21	swapper/1	23:55:29	1
374908	99	34	23,6	cyclictest	0	-21	swapper/1	19:20:19	1
374908	99	34	20,9	cyclictest	0	-21	swapper/1	21:45:20	1
374908	99	34	20,8	cyclictest	0	-21	swapper/1	20:00:30	1
374908	99	34	18,8	cyclictest	0	-21	swapper/1	00:30:28	1
374908	99	34	1,25	cyclictest	0	-21	swapper/1	00:10:20	1
374911	99	33	25,5	cyclictest	423682	-21	grep	23:50:28	2
374911	99	33	23,7	cyclictest	384809	-21	/usr/sbin/munin	20:05:27	2
374911	99	33	23,7	cyclictest	384809	-21	/usr/sbin/munin	20:05:27	2
374911	99	33	18,10	cyclictest	31	1	ktimers/2	22:30:13	2
374908	99	33	22,6	cyclictest	0	-21	swapper/1	20:40:27	1
374908	99	33	1,2	cyclictest	0	-21	swapper/1	20:55:01	1
374911	99	32	21,8	cyclictest	0	-21	swapper/2	23:35:28	2
374911	99	32	19,8	cyclictest	31	1	ktimers/2	23:10:12	2
374911	99	32	17,12	cyclictest	0	-21	swapper/2	22:15:28	2
374911	99	32	17,10	cyclictest	0	-21	swapper/2	19:34:59	2
374911	99	32	14,15	cyclictest	31	1	ktimers/2	00:15:13	2
374911	99	32	1,25	cyclictest	0	-21	swapper/2	21:50:11	2
374908	99	32	23,6	cyclictest	23	1	ktimers/1	23:30:25	1
374908	99	32	1,3	cyclictest	375430	-21	kernelversion	19:10:23	1
374911	99	31	22,4	cyclictest	0	-21	swapper/2	19:10:02	2
374911	99	31	21,7	cyclictest	431223	-21	unixbench_multi	00:35:29	2
374911	99	31	19,8	cyclictest	0	-21	swapper/2	19:20:28	2
374911	99	31	1,4	cyclictest	428456	-21	meminfo	00:20:24	2
374911	99	31	1,4	cyclictest	0	-21	swapper/2	20:20:26	2
374908	99	31	20,7	cyclictest	0	-21	swapper/1	20:05:29	1
374908	99	31	20,7	cyclictest	0	-21	swapper/1	20:05:29	1
374908	99	31	20,6	cyclictest	0	-21	swapper/1	21:50:29	1
374908	99	31	15,10	cyclictest	0	-21	swapper/1	21:25:30	1
374908	99	31	1,2	cyclictest	0	-21	swapper/1	23:50:02	1
374911	99	30	22,4	cyclictest	0	-21	swapper/2	19:50:27	2
374911	99	30	18,8	cyclictest	0	-21	swapper/2	23:45:30	2
374911	99	29	19,7	cyclictest	0	-21	swapper/2	21:35:29	2
374908	99	29	20,6	cyclictest	0	-21	swapper/1	19:40:26	1
374908	99	28	1,25	cyclictest	1660	-21	snmpd	00:01:49	1
374911	99	27	22,4	cyclictest	0	-21	swapper/2	23:16:18	2
374911	99	27	22,4	cyclictest	0	-21	swapper/2	23:16:18	2
374911	99	27	18,6	cyclictest	0	-21	swapper/2	22:10:22	2
374911	99	27	18,6	cyclictest	0	-21	swapper/2	22:10:22	2
374911	99	27	17,7	cyclictest	0	-21	swapper/2	20:00:21	2
374911	99	27	16,4	cyclictest	0	-21	swapper/2	20:55:17	2
374911	99	26	15,8	cyclictest	0	-21	swapper/2	23:05:28	2
374911	99	25	19,5	cyclictest	31	1	ktimers/2	22:05:27	2
374911	99	24	12,8	cyclictest	0	-21	swapper/2	19:45:28	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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