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 Mon Apr 06, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3111350	99	76	69,5	cyclictest	3113843	-21	kworker/u4:12+events_unbound	07:45:02	1
3111349	99	75	66,6	cyclictest	3120263	-21	kworker/u4:19+events_unbound	08:35:00	0
3111350	99	73	61,9	cyclictest	3140399	-21	sshd	09:00:33	1
3111350	99	71	63,6	cyclictest	3175263	-21	kworker/u4:8+events_unbound	10:00:42	1
3111350	99	71	62,6	cyclictest	3276835	-21	latency_hist	11:45:02	1
3111350	99	69	60,7	cyclictest	3116424	-21	kworker/u4:14+events_unbound	08:50:32	1
3111350	99	69	3,57	cyclictest	3164609	-21	ssh	09:35:19	1
3111349	99	69	62,5	cyclictest	3130493	-21	kworker/u4:13+events_unbound	08:40:01	0
3111350	99	67	52,10	cyclictest	37	-21	kcompactd0	12:09:09	1
3111349	99	67	62,3	cyclictest	3162047	-21	kworker/u4:7+events_unbound	09:50:40	0
3111350	99	66	56,6	cyclictest	3142100	-21	diskmemload	11:50:34	1
3111350	99	66	34,28	cyclictest	0	-21	swapper/1	10:30:25	1
3111350	99	66	26,26	cyclictest	0	-21	swapper/1	10:55:23	1
3111350	99	66	2,61	cyclictest	3216353	-21	apt-get	10:35:12	1
3111350	99	65	40,22	cyclictest	3302911	-21	dpkg	12:15:13	1
3111350	99	64	5,52	cyclictest	3195551	-21	ntpq	10:10:31	1
3111350	99	64	34,25	cyclictest	0	-21	swapper/1	10:45:40	1
3111350	99	64	2,56	cyclictest	3256220	-21	ntpq	11:20:33	1
3111350	99	62	41,19	cyclictest	3134348	-21	munin-plugin-st	08:40:00	1
3111350	99	62	32,26	cyclictest	0	-21	swapper/1	09:20:32	1
3111349	99	62	38,15	cyclictest	53	-21	kswapd0	10:45:08	0
3111350	99	61	38,19	cyclictest	3268108	-21	ssh	11:35:01	1
3111350	99	61	32,26	cyclictest	0	-21	swapper/1	11:05:25	1
3111350	99	60	38,20	cyclictest	0	-21	swapper/1	12:26:07	1
3111350	99	60	38,19	cyclictest	3168830	-21	aten_r7power_en	09:40:21	1
3111350	99	60	29,28	cyclictest	0	-21	swapper/1	12:35:42	1
3111350	99	60	28,30	cyclictest	0	-21	swapper/1	09:55:16	1
3111350	99	59	5,47	cyclictest	3127418	-21	grep	08:10:25	1
3111350	99	59	3,47	cyclictest	3160792	-21	ssh	09:30:32	1
3111350	99	59	30,27	cyclictest	3173364	-21	fschecks_time	09:45:20	1
3111349	99	59	5,48	cyclictest	3212939	-21	ssh	10:30:34	0
3111349	99	59	50,6	cyclictest	53	-21	kswapd0	12:10:00	0
3111349	99	59	49,7	cyclictest	3227566	-21	kworker/u4:10+events_unbound	11:41:00	0
3111350	99	58	49,6	cyclictest	3116423	-21	kworker/u4:10+events_unbound	08:25:23	1
3111350	99	58	3,51	cyclictest	3221497	-21	ssh	10:40:29	1
3111350	99	58	3,51	cyclictest	3221497	-21	ssh	10:40:29	1
3111350	99	58	3,51	cyclictest	3147811	-21	ntpq	09:15:41	1
3111350	99	58	2,52	cyclictest	3309170	-21	ssh	12:21:32	1
3111350	99	58	2,51	cyclictest	3247420	-21	ssh	11:10:26	1
3111350	99	58	1,51	cyclictest	3260493	-21	ssh	11:25:29	1
3111350	99	58	1,51	cyclictest	3254309	-21	ssh	11:18:45	1
3111349	99	58	44,6	cyclictest	3188537	-21	kworker/u4:7+events_unbound	10:02:41	0
3111350	99	57	7,45	cyclictest	0	-21	swapper/1	09:25:13	1
3111350	99	57	5,45	cyclictest	3230362	-21	ps	10:50:37	1
3111350	99	57	49,5	cyclictest	3110072	-21	kworker/u4:1+events_unbound	08:20:22	1
3111350	99	57	46,8	cyclictest	3116421	-21	kworker/u4:3+events_unbound	08:00:12	1
3111350	99	57	46,8	cyclictest	3116421	-21	kworker/u4:3+events_unbound	08:00:12	1
3111350	99	57	35,14	cyclictest	3277350	-21	cut	11:45:19	1
3111350	99	57	33,22	cyclictest	3179667	-21	kworker/u4:9-rpciod	10:05:40	1
3111350	99	57	32,22	cyclictest	0	-21	swapper/1	12:30:34	1
3111350	99	57	28,27	cyclictest	0	-21	swapper/1	12:10:38	1
3111350	99	57	2,52	cyclictest	3285644	-21	apt-get	11:55:13	1
3111350	99	57	1,52	cyclictest	3199834	-21	ssh	10:15:38	1
3111350	99	56	3,46	cyclictest	3113354	-21	awk	07:15:26	1
3111350	99	56	31,23	cyclictest	3208451	-21	sh	10:25:27	1
3111350	99	56	31,21	cyclictest	0	-21	swapper/1	09:50:19	1
3111350	99	56	2,49	cyclictest	3136366	-21	ntpq	08:45:26	1
3111350	99	56	23,30	cyclictest	0	-21	swapper/1	08:45:01	1
3111350	99	56	1,50	cyclictest	3121736	-21	sshd	07:50:13	1
3111349	99	56	47,6	cyclictest	3137342	-21	df_abs	08:50:21	0
3111350	99	55	4,48	cyclictest	3128771	-21	ntpq	08:15:33	1
3111350	99	55	3,48	cyclictest	3115965	-21	ntpq	07:25:29	1
3111350	99	55	3,46	cyclictest	3142652	-21	ssh	09:10:16	1
3111350	99	55	2,48	cyclictest	3118536	-21	ntpq	07:35:31	1
3111350	99	55	2,44	cyclictest	3290247	-21	df_inode	12:00:18	1
3111350	99	55	1,32	cyclictest	3142100	-21	diskmemload	11:35:06	1
3111350	99	55	1,31	cyclictest	3240669	-21	ssh	11:02:40	1
3111350	99	55	1,30	cyclictest	3203266	-21	ssh	10:20:03	1
3111350	99	54	1,50	cyclictest	3116606	-21	/usr/sbin/munin	07:30:39	1
3111350	99	54	1,49	cyclictest	3139069	-21	ntpq	08:55:32	1
3111349	99	54	46,5	cyclictest	3144881	-21	kworker/u4:9+events_unbound	09:20:37	0
3111349	99	54	45,6	cyclictest	3182649	-21	sendmail_mailqu	09:55:37	0
3111350	99	53	43,7	cyclictest	3141274	-21	fschecks_count	09:05:20	1
3111350	99	53	43,7	cyclictest	3141274	-21	fschecks_count	09:05:20	1
3111350	99	53	2,47	cyclictest	3123658	-21	ntp_states	07:55:31	1
3111350	99	53	2,46	cyclictest	3112164	-21	ntpq	07:10:34	1
3111350	99	53	1,49	cyclictest	3121168	-21	ps	07:45:36	1
3111350	99	53	1,29	cyclictest	3131957	-21	apt-get	08:30:12	1
3111349	99	53	47,4	cyclictest	3203804	-21	/usr/sbin/munin	10:20:20	0
3111349	99	53	44,6	cyclictest	3298566	-21	apt-get	12:10:12	0
3111349	99	53	43,7	cyclictest	3117024	-21	gltestperf	07:30:19	0
3111349	99	53	34,17	cyclictest	3260223	-21	gltestperf	11:25:22	0
3111349	99	53	29,22	cyclictest	3199684	-21	cut	10:15:35	0
3111350	99	52	4,42	cyclictest	3126039	-21	irqstats	08:05:21	1
3111349	99	52	35,15	cyclictest	3242108	-21	cron	11:05:00	0
3111349	99	52	32,18	cyclictest	3237833	-21	sendmail	11:00:00	0
3111349	99	52	1,3	cyclictest	0	-21	swapper/0	12:20:36	0
3111349	99	51	44,5	cyclictest	3257133	-21	kworker/u4:2+events_unbound	11:23:59	0
3111349	99	51	44,5	cyclictest	2757565	-21	kworker/u4:11+events_unbound	07:45:04	0
3111349	99	51	42,7	cyclictest	3169561	-21	sshd	09:40:38	0
3111349	99	51	39,9	cyclictest	3291149	-21	timerwakeupswit	12:00:40	0
3111349	99	51	36,8	cyclictest	0	-21	swapper/0	09:15:08	0
3111350	99	50	2,46	cyclictest	3114688	-21	ntpq	07:20:27	1
3111349	99	50	43,5	cyclictest	3164632	-21	fschecks_count	09:35:19	0
3111349	99	50	43,4	cyclictest	0	-21	swapper/0	10:05:35	0
3111349	99	50	42,6	cyclictest	3097494	-21	kworker/u4:7-xprtiod	07:15:00	0
3111349	99	50	35,10	cyclictest	0	-21	swapper/0	12:25:32	0
3111349	99	50	30,17	cyclictest	0	-21	swapper/0	08:15:01	0
3111349	99	49	6,6	cyclictest	3320244	-21	ssh	12:35:07	0
3111349	99	49	40,6	cyclictest	3303378	-21	gltestperf	12:15:22	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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