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 Mar 01, 2026 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3187738	99	105	95,8	cyclictest	3368676	-21	kworker/u4:3+events_unbound	12:30:31	1
3187736	99	87	79,6	cyclictest	3194170	-21	kworker/u4:4+events_unbound	08:04:59	0
3187738	99	85	78,5	cyclictest	3195439	-21	kworker/u4:6+events_unbound	08:09:37	1
3187738	99	85	77,6	cyclictest	3251201	-21	kworker/u4:5+events_unbound	09:54:53	1
3187738	99	80	72,5	cyclictest	3190317	-21	kworker/u4:14+events_unbound	08:59:39	1
3187738	99	80	70,8	cyclictest	3329647	-21	kworker/u4:4+events_unbound	11:40:21	1
3187738	99	79	55,7	cyclictest	2969984	-21	kworker/u4:5+events_unbound	07:25:00	1
3187738	99	78	70,5	cyclictest	3299669	-21	kworker/u4:9+events_unbound	10:55:04	1
3187736	99	78	3,14	cyclictest	3340272	-21	apt-get	11:30:12	0
3187736	99	78	25,30	cyclictest	0	-21	swapper/0	09:30:33	0
3187736	99	75	67,5	cyclictest	3282067	-21	kworker/u4:6+events_unbound	10:39:31	0
3187738	99	74	64,8	cyclictest	3188961	-21	kworker/u4:8+events_unbound	07:45:01	1
3187738	99	72	60,5	cyclictest	3256292	-21	kworker/u4:2+events_unbound	09:59:54	1
3187738	99	71	63,6	cyclictest	2969984	-21	kworker/u4:5+events_unbound	07:39:38	1
3187736	99	70	62,6	cyclictest	3299669	-21	kworker/u4:9+events_unbound	11:00:06	0
3187736	99	70	39,29	cyclictest	3187734	-21	cyclictest	10:16:40	0
3187736	99	69	39,27	cyclictest	3259540	-21	unixbench_singl	09:55:44	0
3187738	99	68	62,4	cyclictest	3171390	-21	kworker/u4:11+events_unbound	07:10:02	1
3187738	99	68	60,6	cyclictest	3200544	-21	kworker/u4:10+events_unbound	09:05:01	1
3187736	99	68	38,27	cyclictest	3364269	-21	kworker/u4:4-rpciod	12:15:20	0
3187736	99	68	37,28	cyclictest	3318516	-21	ssh	11:05:02	0
3187736	99	68	32,33	cyclictest	3371863	-21	unixbench-2d	12:05:40	0
3187736	99	68	31,33	cyclictest	0	-21	swapper/0	10:40:38	0
3187738	99	67	55,5	cyclictest	3295246	-21	kworker/u4:3+events_unbound	10:40:02	1
3187736	99	67	5,6	cyclictest	3228620	-21	awk	09:20:38	0
3187736	99	67	31,32	cyclictest	0	-21	swapper/0	09:15:26	0
3187736	99	67	31,32	cyclictest	0	-21	swapper/0	07:30:25	0
3187738	99	66	57,6	cyclictest	3364269	-21	kworker/u4:4+events_unbound	11:59:59	1
3187736	99	66	36,27	cyclictest	3254609	-21	ssh	09:50:30	0
3187736	99	66	32,31	cyclictest	0	-21	swapper/0	10:05:32	0
3187736	99	66	31,33	cyclictest	3305910	-21	aten_r7power_vo	10:50:16	0
3187736	99	65	53,10	cyclictest	54	-21	kswapd0	10:20:08	0
3187736	99	65	28,33	cyclictest	0	-21	swapper/0	11:25:00	0
3187736	99	65	2,20	cyclictest	3284850	-21	ssh	10:25:28	0
3187738	99	64	57,5	cyclictest	3268894	-21	kworker/u4:7+events_unbound	10:09:56	1
3187736	99	64	35,26	cyclictest	0	-21	swapper/0	12:20:31	0
3187736	99	64	33,29	cyclictest	0	-21	swapper/0	09:40:37	0
3187736	99	64	3,10	cyclictest	3353510	-21	ssh	11:45:18	0
3187736	99	64	22,38	cyclictest	3335968	-21	apt-get	11:25:12	0
3187736	99	63	3,15	cyclictest	3200084	-21	ntpq	07:55:28	0
3187736	99	63	30,29	cyclictest	0	-21	swapper/0	08:55:19	0
3187736	99	62	4,54	cyclictest	3218845	-21	apt	09:10:11	0
3187736	99	62	30,30	cyclictest	3318832	-21	aten_r7power_vo	11:05:14	0
3187736	99	62	25,34	cyclictest	0	-21	swapper/0	09:00:29	0
3187736	99	62	2,12	cyclictest	3349036	-21	apt-get	11:40:19	0
3187736	99	62	12,45	cyclictest	3241529	-21	ntp_offset	09:35:31	0
3187736	99	61	28,30	cyclictest	3188961	-21	kworker/u4:8-rpciod	07:45:36	0
3187736	99	61	2,19	cyclictest	3375604	-21	ssh	12:10:22	0
3187736	99	61	2,13	cyclictest	3198791	-21	ntpq	07:50:27	0
3187736	99	61	21,37	cyclictest	255	50	irq/23-42890000.ethernet	10:00:34	0
3187736	99	61	1,7	cyclictest	3366042	-21	sendmail-msp	12:00:00	0
3187736	99	61	12,10	cyclictest	1068	-21	snmpd	08:31:57	0
3187736	99	61	1,11	cyclictest	3327157	-21	latency_hist	11:15:02	0
3187736	99	61	1,10	cyclictest	3218044	-21	ntpq	09:05:27	0
3187738	99	60	54,4	cyclictest	3171390	-21	kworker/u4:11+events_unbound	07:15:01	1
3187738	99	60	51,6	cyclictest	0	-21	swapper/1	11:35:40	1
3187736	99	60	40,9	cyclictest	3171390	-21	kworker/u4:11+xprtiod	07:15:12	0
3187736	99	60	3,54	cyclictest	54	-21	kswapd0	11:35:10	0
3187736	99	60	28,29	cyclictest	0	-21	swapper/0	07:20:39	0
3187736	99	60	26,30	cyclictest	0	-21	swapper/0	09:25:20	0
3187736	99	60	2,14	cyclictest	3205145	-21	ntpq	08:15:29	0
3187736	99	60	13,43	cyclictest	3370470	-21	sh	12:05:02	0
3187736	99	60	13,43	cyclictest	3370470	-21	sh	12:05:01	0
3187736	99	60	1,14	cyclictest	3188448	-21	ntpq	07:10:25	0
3187736	99	59	4,8	cyclictest	3250404	-21	ps	09:45:37	0
3187736	99	59	4,17	cyclictest	3358344	-21	ssh	11:50:28	0
3187736	99	59	4,17	cyclictest	3358344	-21	ssh	11:50:27	0
3187736	99	59	27,28	cyclictest	0	-21	swapper/0	08:40:20	0
3187736	99	59	2,10	cyclictest	3271980	-21	ssh	10:10:30	0
3187736	99	59	12,43	cyclictest	3289263	-21	rm	10:30:32	0
3187736	99	59	1,15	cyclictest	3388826	-21	ssh	12:25:32	0
3187736	99	58	3,8	cyclictest	3214264	-21	ps	08:50:34	0
3187736	99	58	3,16	cyclictest	3195025	-21	ntpq	07:35:34	0
3187736	99	58	2,5	cyclictest	3202507	-21	irqstats	08:05:20	0
3187736	99	58	25,29	cyclictest	0	-21	swapper/0	11:15:30	0
3187738	99	57	48,7	cyclictest	3353632	-21	systemd	11:45:20	1
3187738	99	57	48,7	cyclictest	3292438	-21	systemd	10:34:59	1
3187738	99	57	46,7	cyclictest	3371197	-21	/usr/sbin/munin	12:05:21	1
3187736	99	57	3,14	cyclictest	3207856	-21	ps	08:25:35	0
3187736	99	57	26,28	cyclictest	0	-21	swapper/0	12:35:34	0
3187736	99	57	2,4	cyclictest	3196252	-21	ntpq	07:40:28	0
3187736	99	57	2,14	cyclictest	3393143	-21	ntpq	12:30:30	0
3187736	99	57	1,5	cyclictest	3203855	-21	ntpq	08:10:28	0
3187736	99	57	1,5	cyclictest	3192295	-21	irqstats	07:25:22	0
3187736	99	57	14,40	cyclictest	0	-21	swapper/0	08:45:35	0
3187736	99	57	12,41	cyclictest	255	50	irq/23-42890000.ethernet	10:45:30	0
3187736	99	57	12,41	cyclictest	255	50	irq/23-42890000.ethernet	10:45:30	0
3187736	99	57	1,14	cyclictest	3210273	-21	ntpq	08:35:25	0
3187738	99	56	43,5	cyclictest	3251841	-21	kworker/u4:8+events_unbound	09:49:51	1
3187738	99	55	48,5	cyclictest	3372454	-21	kworker/u4:6+events_unbound	12:10:03	1
3187738	99	55	47,6	cyclictest	3190317	-21	kworker/u4:14+events_unbound	07:30:01	1
3187738	99	55	40,7	cyclictest	3334073	-21	kworker/u4:13+events_unbound	11:25:28	1
3187736	99	55	2,14	cyclictest	3205883	-21	apt	08:20:13	0
3187738	99	54	46,6	cyclictest	3198005	-21	kworker/u4:0+events_unbound	08:15:01	1
3187738	99	54	37,12	cyclictest	0	-21	swapper/1	12:00:27	1
3187738	99	54	37,12	cyclictest	0	-21	swapper/1	12:00:27	1
3187738	99	53	43,8	cyclictest	3394474	-21	kworker/u4:1+events_unbound	12:35:31	1
3187738	99	52	45,5	cyclictest	3194170	-21	kworker/u4:4+events_unbound	07:34:36	1
3187738	99	52	41,9	cyclictest	3319255	-21	kernelversion	11:05:20	1
3187738	99	52	40,7	cyclictest	0	-21	swapper/1	09:15:30	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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