OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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 100 highest latencies:

System rack7slot2.osadl.org (updated Sun Dec 28, 2025 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3305289	99	131	16,47	cyclictest	3305271	-21	munin-run	19:10:00	0
3305289	99	108	100,6	cyclictest	3307851	-21	kworker/u4:2+events_unbound	20:32:59	0
3305290	99	105	98,5	cyclictest	3355636	-21	kworker/u4:5+events_unbound	21:53:18	1
3305290	99	101	93,6	cyclictest	3355638	-21	kworker/u4:6+events_unbound	21:43:13	1
3305290	99	100	92,6	cyclictest	3471341	-21	kworker/u4:9+events_unbound	23:48:49	1
3305289	99	96	89,5	cyclictest	3432966	-21	kworker/u4:8+events_unbound	23:03:37	0
3305290	99	95	87,6	cyclictest	3403343	-21	kworker/u4:10+events_unbound	22:28:30	1
3305290	99	95	87,6	cyclictest	3403343	-21	kworker/u4:10+events_unbound	22:28:29	1
3305290	99	92	85,5	cyclictest	3309134	-21	kworker/u4:9+events_unbound	19:22:40	1
3305290	99	92	83,6	cyclictest	3315436	-21	kworker/u4:8+events_unbound	20:38:02	1
3305289	99	90	83,5	cyclictest	3399003	-21	kworker/u4:7+events_unbound	22:58:35	0
3305289	99	90	83,5	cyclictest	3309131	-21	kworker/u4:4+events_unbound	20:07:55	0
3305289	99	90	83,5	cyclictest	3305213	-21	kworker/u4:0+events_unbound	19:32:46	0
3305290	99	87	80,5	cyclictest	3307852	-21	kworker/u4:3+events_unbound	19:17:38	1
3305290	99	87	80,5	cyclictest	3307852	-21	kworker/u4:3+events_unbound	19:17:38	1
3305290	99	84	77,5	cyclictest	3315436	-21	kworker/u4:8+events_unbound	20:58:04	1
3305289	99	84	76,5	cyclictest	3309132	-21	kworker/u4:5+events_unbound	19:57:53	0
3305289	99	84	68,5	cyclictest	3446010	-21	kworker/u4:3+events_unbound	23:20:03	0
3305289	99	83	76,5	cyclictest	54	-21	kswapd0	21:45:00	0
3305289	99	82	75,5	cyclictest	3309131	-21	kworker/u4:4+events_unbound	20:02:53	0
3305289	99	79	72,5	cyclictest	3315436	-21	kworker/u4:8+events_unbound	20:43:03	0
3305290	99	75	45,19	cyclictest	54	-21	kswapd0	00:30:05	1
3305290	99	72	65,5	cyclictest	3307851	-21	kworker/u4:2+events_unbound	20:12:57	1
3305290	99	72	60,6	cyclictest	3382033	-21	kworker/u4:13+events_unbound	22:05:18	1
3305289	99	71	61,6	cyclictest	54	-21	kswapd0	21:40:00	0
3305290	99	67	60,5	cyclictest	3305218	-21	kworker/u4:9+events_unbound	19:10:01	1
3305289	99	65	57,5	cyclictest	3500744	-21	kworker/u4:9+events_unbound	00:33:58	0
3305290	99	64	57,5	cyclictest	3309132	-21	kworker/u4:5+events_unbound	19:30:02	1
3305289	99	64	59,3	cyclictest	3399000	-21	kworker/u4:4+events_unbound	22:43:32	0
3305289	99	63	58,3	cyclictest	3479942	-21	kworker/u4:14+events_unbound	00:03:52	0
3305290	99	62	55,5	cyclictest	3330670	-21	kworker/u4:9+events_unbound	21:05:03	1
3305290	99	61	54,5	cyclictest	3310389	-21	kworker/u4:12+events_unbound	20:08:00	1
3305290	99	61	54,5	cyclictest	3309131	-21	kworker/u4:4+events_unbound	20:17:01	1
3305290	99	61	48,7	cyclictest	3466990	-21	kworker/u4:0+events_unbound	23:44:01	1
3305290	99	61	48,7	cyclictest	3466990	-21	kworker/u4:0+events_unbound	23:44:00	1
3305290	99	60	54,4	cyclictest	3390157	-21	kworker/u4:0+events_unbound	22:13:00	1
3305290	99	60	45,8	cyclictest	3355633	-21	kworker/u4:1+events_unbound	21:35:20	1
3305289	99	60	47,8	cyclictest	3457268	-21	ntp_states	23:30:35	0
3305290	99	59	52,5	cyclictest	3441646	-21	kworker/u4:6+events_unbound	23:23:43	1
3305290	99	59	52,5	cyclictest	3437303	-21	kworker/u4:11+events_unbound	23:10:03	1
3305290	99	59	48,5	cyclictest	3377635	-21	kworker/u4:4+events_unbound	21:58:01	1
3305289	99	58	51,5	cyclictest	3307852	-21	kworker/u4:3+events_unbound	20:20:03	0
3305289	99	58	51,4	cyclictest	3446010	-21	kworker/u4:3+events_unbound	23:18:42	0
3305289	99	58	38,17	cyclictest	54	-21	kswapd0	00:15:12	0
3305289	99	57	50,5	cyclictest	3462680	-21	kworker/u4:8+events_unbound	23:40:01	0
3305289	99	57	50,5	cyclictest	3462680	-21	kworker/u4:8+events_unbound	23:40:01	0
3305289	99	57	49,6	cyclictest	3479940	-21	kworker/u4:11+events_unbound	00:24:01	0
3305290	99	56	49,5	cyclictest	3500744	-21	kworker/u4:9+events_unbound	00:35:02	1
3305290	99	56	49,5	cyclictest	3305213	-21	kworker/u4:0+events_unbound	20:00:04	1
3305289	99	56	48,6	cyclictest	3314672	-21	fschecks_time	19:45:22	0
3305289	99	56	47,6	cyclictest	0	-21	swapper/0	22:45:13	0
3305289	99	56	37,17	cyclictest	3397090	-21	fschecks_count	22:20:24	0
3305289	99	56	37,17	cyclictest	3397090	-21	fschecks_count	22:20:23	0
3305290	99	55	42,10	cyclictest	27	1	ktimers/1	21:31:57	1
3305289	99	55	48,5	cyclictest	54	-21	kswapd0	21:55:35	0
3305289	99	55	36,16	cyclictest	3439775	-21	gltestperf	23:10:19	0
3305290	99	54	48,4	cyclictest	3335719	-21	kworker/u4:7+events_unbound	21:20:03	1
3305290	99	54	43,5	cyclictest	3432966	-21	kworker/u4:8+events_unbound	23:27:59	1
3305289	99	54	47,5	cyclictest	3333183	-21	kworker/u4:2+events_unbound	21:01:04	0
3305289	99	54	47,5	cyclictest	3315436	-21	kworker/u4:8+events_unbound	20:55:03	0
3305290	99	53	47,4	cyclictest	3432966	-21	kworker/u4:8+events_unbound	23:04:59	1
3305290	99	53	47,4	cyclictest	3333184	-21	kworker/u4:4+events_unbound	21:00:04	1
3305289	99	53	35,15	cyclictest	54	-21	kswapd0	00:10:00	0
3305290	99	52	41,8	cyclictest	54	-21	kswapd0	00:10:13	1
3305289	99	52	45,5	cyclictest	3315436	-21	kworker/u4:8+events_unbound	20:15:03	0
3305289	99	52	45,5	cyclictest	3307852	-21	kworker/u4:3+events_unbound	19:19:44	0
3305289	99	52	45,5	cyclictest	3307852	-21	kworker/u4:3+events_unbound	19:19:43	0
3305289	99	52	44,6	cyclictest	3478481	-21	ntp_states	23:55:34	0
3305289	99	52	42,7	cyclictest	3388344	-21	df	22:10:18	0
3305289	99	52	28,5	cyclictest	3403341	-21	kworker/u4:6+events_unbound	22:29:56	0
3305289	99	52	28,5	cyclictest	3403341	-21	kworker/u4:6+events_unbound	22:29:56	0
3305290	99	51	41,8	cyclictest	54	-21	kswapd0	22:00:24	1
3305289	99	51	44,5	cyclictest	3453216	-21	switchtime	23:25:40	0
3305289	99	51	44,5	cyclictest	3373275	-21	kworker/u4:2+events_unbound	22:15:42	0
3305289	99	51	44,5	cyclictest	3302800	-21	kworker/u4:5+events_unbound	19:10:12	0
3305290	99	50	44,4	cyclictest	3494713	-21	aten_r7power_po	00:15:21	1
3305290	99	50	43,5	cyclictest	3478760	-21	timerwakeupswit	23:55:38	1
3305290	99	50	43,5	cyclictest	3311647	-21	kworker/u4:16+events_unbound	20:25:04	1
3305290	99	50	43,5	cyclictest	3310389	-21	kworker/u4:12+events_unbound	19:45:03	1
3305290	99	50	42,5	cyclictest	3307852	-21	kworker/u4:3+events_unbound	20:50:02	1
3305290	99	50	38,8	cyclictest	3499899	-21	tail	00:20:38	1
3305289	99	50	43,4	cyclictest	0	-21	swapper/0	00:25:29	0
3305289	99	50	41,6	cyclictest	3349528	-21	fschecks_time	21:25:21	0
3305289	99	50	40,6	cyclictest	0	-21	swapper/0	22:50:30	0
3305289	99	50	39,8	cyclictest	3324789	-21	fschecks_time	20:25:21	0
3305289	99	50	38,9	cyclictest	3405733	-21	/usr/sbin/munin	22:30:21	0
3305290	99	49	42,5	cyclictest	3312901	-21	kworker/u4:1+events_unbound	19:40:02	1
3305290	99	49	41,6	cyclictest	3414442	-21	/usr/sbin/munin	22:40:23	1
3305290	99	49	41,6	cyclictest	3328134	-21	kworker/u4:11+events_unbound	20:40:03	1
3305290	99	49	40,7	cyclictest	3486492	-21	fschecks_time	00:05:22	1
3305290	99	49	36,5	cyclictest	3311647	-21	kworker/u4:16+events_unbound	19:36:43	1
3305290	99	49	33,12	cyclictest	27	1	ktimers/1	23:07:06	1
3305290	99	48	41,5	cyclictest	3446010	-21	kworker/u4:3+events_unbound	23:18:59	1
3305290	99	48	41,5	cyclictest	3316465	-21	awk	19:50:36	1
3305290	99	48	37,8	cyclictest	3326414	-21	ps	20:30:38	1
3305290	99	48	37,7	cyclictest	0	-21	swapper/1	20:25:00	1
3305289	99	48	41,5	cyclictest	3491335	-21	switchtime	00:10:38	0
3305289	99	48	41,5	cyclictest	3306584	-21	kworker/u4:6+events_unbound	19:35:03	0
3305289	99	48	39,7	cyclictest	3511347	-21	aten_r7power_vo	00:35:18	0
3305289	99	48	38,7	cyclictest	3340548	-21	aten_r7power_po	21:15:17	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17