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 792 highest latencies:

System rack7slot2.osadl.org (updated Mon Nov 03, 2025 00:44:05)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3193178	99	138	130,6	cyclictest	3339453	-21	kworker/u4:7+events_unbound	23:36:09	0
3193178	99	127	118,7	cyclictest	3195697	-21	kworker/u4:10+events_unbound	19:50:31	0
3193178	99	123	116,5	cyclictest	3287435	-21	kworker/u4:9+events_unbound	22:41:00	0
3193178	99	119	111,6	cyclictest	3246971	-21	kworker/u4:3+events_unbound	21:57:21	0
3193178	99	119	110,6	cyclictest	3339452	-21	kworker/u4:5+events_unbound	23:32:44	0
3193178	99	119	110,6	cyclictest	3339452	-21	kworker/u4:5+events_unbound	23:32:43	0
3193180	99	118	108,7	cyclictest	3287432	-21	kworker/u4:4+events_unbound	22:36:00	1
3193178	99	114	106,6	cyclictest	3246972	-21	kworker/u4:4+events_unbound	21:37:18	0
3193178	99	114	105,7	cyclictest	3275101	-21	kworker/u4:5+events_unbound	22:12:25	0
3193178	99	106	97,6	cyclictest	3197029	-21	kworker/u4:4+events_unbound	20:15:38	0
3193178	99	106	91,5	cyclictest	3351394	-21	kworker/u4:5+events_unbound	23:51:59	0
3193178	99	105	97,6	cyclictest	3208695	-21	kworker/u4:1+events_unbound	20:11:58	0
3193178	99	105	90,6	cyclictest	3355269	-21	kworker/u4:12+events_unbound	00:28:25	0
3193178	99	104	89,6	cyclictest	3238746	-21	kworker/u4:2+events_unbound	21:27:15	0
3193178	99	103	96,5	cyclictest	3299749	-21	kworker/u4:10+events_unbound	22:46:02	0
3193178	99	103	95,6	cyclictest	3327724	-21	kworker/u4:10+events_unbound	23:17:39	0
3193178	99	103	95,6	cyclictest	3287435	-21	kworker/u4:9+events_unbound	22:37:30	0
3193180	99	100	89,8	cyclictest	2965313	-21	kworker/u4:4+events_unbound	19:10:25	1
3193178	99	100	93,5	cyclictest	3319511	-21	kworker/u4:5+events_unbound	23:11:04	0
3193178	99	100	91,6	cyclictest	3343473	-21	kworker/u4:9+events_unbound	00:34:07	0
3193180	99	99	88,7	cyclictest	3199669	-21	kworker/u4:14+events_unbound	19:35:31	1
3193180	99	95	87,6	cyclictest	3366117	-21	kworker/u4:1+events_unbound	00:24:00	1
3193178	99	93	87,4	cyclictest	3343473	-21	kworker/u4:9+events_unbound	00:03:47	0
3193178	99	92	84,6	cyclictest	3215238	-21	kworker/u4:5+events_unbound	21:00:47	0
3193178	99	89	80,7	cyclictest	3263376	-21	kworker/u4:2+events_unbound	22:20:59	0
3193178	99	86	78,6	cyclictest	3197029	-21	kworker/u4:4+events_unbound	20:27:01	0
3193180	99	85	59,21	cyclictest	53	-21	kswapd0	23:15:06	1
3193178	99	84	76,6	cyclictest	3223070	-21	kworker/u4:6+events_unbound	21:17:13	0
3193180	99	83	77,5	cyclictest	3387040	-21	kworker/u4:7+events_unbound	00:38:39	1
3193178	99	83	75,6	cyclictest	3366117	-21	kworker/u4:1+events_unbound	00:08:14	0
3193180	99	82	77,3	cyclictest	3209976	-21	kworker/u4:13+events_unbound	20:57:08	1
3193180	99	82	74,6	cyclictest	3194411	-21	kworker/u4:1+events_unbound	19:25:01	1
3193180	99	79	75,2	cyclictest	3211260	-21	kworker/u4:15+events_unbound	20:20:39	1
3193180	99	79	70,7	cyclictest	3189440	-21	kworker/u4:0+events_unbound	19:15:28	1
3193180	99	78	71,5	cyclictest	3242854	-21	kworker/u4:8+events_unbound	21:52:20	1
3193180	99	78	69,6	cyclictest	3197028	-21	kworker/u4:2+events_unbound	19:25:29	1
3193180	99	78	59,6	cyclictest	3206116	-21	kworker/u4:7+events_unbound	20:05:37	1
3193180	99	76	68,6	cyclictest	3347459	-21	kworker/u4:2+events_unbound	23:58:32	1
3193178	99	76	68,6	cyclictest	3242851	-21	kworker/u4:6+events_unbound	22:07:25	0
3193178	99	76	64,8	cyclictest	3208695	-21	kworker/u4:1+events_unbound	20:10:01	0
3193180	99	75	64,9	cyclictest	3343473	-21	kworker/u4:9+events_unbound	00:34:05	1
3193178	99	73	65,6	cyclictest	3263376	-21	kworker/u4:2+events_unbound	22:27:29	0
3193178	99	73	65,5	cyclictest	3202272	-21	kworker/u4:2+events_unbound	20:05:00	0
3193178	99	73	64,6	cyclictest	3211261	-21	kworker/u4:16+events_unbound	21:05:49	0
3193180	99	72	62,7	cyclictest	3311320	-21	kworker/u4:6+events_unbound	22:57:35	1
3193178	99	72	66,4	cyclictest	3194411	-21	kworker/u4:1+events_unbound	19:26:54	0
3193180	99	71	63,6	cyclictest	3354737	-21	kworker/u4:6+events_unbound	23:53:25	1
3193180	99	71	62,7	cyclictest	3287432	-21	kworker/u4:4+events_unbound	22:51:01	1
3193180	99	71	3,21	cyclictest	3241443	-21	sh	21:30:28	1
3193180	99	70	61,7	cyclictest	3211261	-21	kworker/u4:16+events_unbound	20:17:01	1
3193180	99	70	61,6	cyclictest	3253698	-21	ntpq	21:45:34	1
3193180	99	70	32,5	cyclictest	3378992	-21	/usr/sbin/munin	00:25:42	1
3193180	99	69	33,8	cyclictest	3371164	-21	latency_hist	00:15:01	1
3193178	99	69	62,6	cyclictest	3190650	-21	kworker/u4:7+events_unbound	19:36:52	0
3193178	99	69	61,6	cyclictest	3259279	-21	kworker/u4:10+events_unbound	22:20:01	0
3193180	99	68	35,4	cyclictest	3321745	-21	fschecks_count	23:10:24	1
3193178	99	68	51,12	cyclictest	3265009	-21	ssh	22:00:08	0
3193180	99	67	35,5	cyclictest	3301937	-21	/usr/sbin/munin	22:45:23	1
3193180	99	67	32,6	cyclictest	0	-21	swapper/1	21:25:32	1
3193180	99	67	31,7	cyclictest	3371938	-21	sh	00:15:27	1
3193178	99	67	59,6	cyclictest	3373299	-21	kworker/u4:0+events_unbound	00:20:01	0
3193180	99	66	59,5	cyclictest	3197028	-21	kworker/u4:2+events_unbound	19:30:31	1
3193180	99	66	58,6	cyclictest	3307253	-21	kworker/u4:5+events_unbound	23:01:03	1
3193180	99	66	57,6	cyclictest	3206116	-21	kworker/u4:7+events_unbound	20:10:39	1
3193180	99	66	36,5	cyclictest	3342004	-21	gltestperf	23:35:20	1
3193180	99	66	34,5	cyclictest	3285533	-21	fschecks_count	22:25:23	1
3193180	99	66	32,7	cyclictest	3297713	-21	diskmemload	22:40:21	1
3193180	99	65	36,27	cyclictest	3198400	-21	kworker/u4:13+rpciod	19:40:37	1
3193180	99	65	30,9	cyclictest	0	-21	swapper/1	21:05:40	1
3193178	99	65	57,6	cyclictest	3216512	-21	kworker/u4:11+events_unbound	20:52:07	0
3193180	99	64	30,11	cyclictest	3281290	-21	sh	22:20:18	1
3193178	99	64	8,52	cyclictest	3249567	-21	ssh	21:40:28	0
3193178	99	64	59,4	cyclictest	3347460	-21	kworker/u4:3+events_unbound	23:50:01	0
3193180	99	63	51,10	cyclictest	3202272	-21	kworker/u4:2+events_unbound	20:00:36	1
3193180	99	63	45,15	cyclictest	0	-21	swapper/1	22:05:17	1
3193178	99	63	56,5	cyclictest	3190650	-21	kworker/u4:7+events_unbound	19:46:54	0
3193178	99	63	54,7	cyclictest	3343475	-21	kworker/u4:12+events_unbound	23:40:03	0
3193178	99	63	48,13	cyclictest	3327724	-21	kworker/u4:10+events_unbound	23:29:38	0
3193178	99	63	43,18	cyclictest	398	-21	systemd-logind	22:56:01	0
3193178	99	62	55,5	cyclictest	3373299	-21	kworker/u4:0+events_unbound	00:40:01	0
3193180	99	61	52,7	cyclictest	3209976	-21	kworker/u4:13+events_unbound	20:32:02	1
3193178	99	61	53,6	cyclictest	3195720	-21	kworker/u4:11+events_unbound	19:56:55	0
3193178	99	61	49,9	cyclictest	53	-21	kswapd0	00:10:16	0
3193180	99	60	53,5	cyclictest	3202272	-21	kworker/u4:2+events_unbound	19:55:34	1
3193178	99	60	53,5	cyclictest	3307252	-21	kworker/u4:3+events_unbound	22:54:59	0
3193178	99	60	53,5	cyclictest	3190650	-21	kworker/u4:7+events_unbound	19:31:54	0
3193178	99	60	52,6	cyclictest	3197029	-21	kworker/u4:4+events_unbound	20:22:02	0
3193178	99	59	51,6	cyclictest	3215236	-21	kworker/u4:0+events_unbound	20:37:04	0
3193180	99	58	49,7	cyclictest	3216510	-21	kworker/u4:7+events_unbound	20:47:05	1
3193178	99	58	50,6	cyclictest	3238746	-21	kworker/u4:2+events_unbound	21:35:00	0
3193178	99	58	41,8	cyclictest	3287430	-21	kworker/u4:1+events_unbound	22:30:04	0
3193178	99	58	41,11	cyclictest	3194445	-21	modprobe	19:15:00	0
3193180	99	56	48,6	cyclictest	3221662	-21	kworker/u4:10+events_unbound	21:10:03	1
3193180	99	56	47,6	cyclictest	3223067	-21	kworker/u4:0+events_unbound	21:20:51	1
3193180	99	55	47,6	cyclictest	3202272	-21	kworker/u4:2+events_unbound	20:42:06	1
3193180	99	55	47,5	cyclictest	3208695	-21	kworker/u4:1+events_unbound	20:25:43	1
3193180	99	55	45,7	cyclictest	3216512	-21	kworker/u4:11+events_unbound	20:50:46	1
3193178	99	55	47,6	cyclictest	3315421	-21	kworker/u4:11+events_unbound	23:05:06	0
3193178	99	55	11,31	cyclictest	3330335	-21	ssh	23:20:38	0
3193180	99	54	46,6	cyclictest	3216512	-21	kworker/u4:11+events_unbound	21:02:10	1
3193180	99	53	44,6	cyclictest	3275099	-21	kworker/u4:3-rpciod	22:15:01	1
3193180	99	53	44,6	cyclictest	0	-21	swapper/1	22:15:29	1
3193178	99	52	44,6	cyclictest	3216512	-21	kworker/u4:11+events_unbound	20:40:43	0
3193178	99	52	31,19	cyclictest	3194890	-21	fschecks_count	19:15:19	0
3193180	99	51	43,6	cyclictest	3334181	-21	/usr/sbin/munin	23:25:29	1
3193180	99	51	43,6	cyclictest	3315417	-21	kworker/u4:1+events_unbound	23:22:42	1
3193178	99	51	43,6	cyclictest	3246971	-21	kworker/u4:3+events_unbound	21:47:21	0
3193178	99	51	10,8	cyclictest	3225538	-21	ntpq	21:10:37	0
3193180	99	50	41,6	cyclictest	3317423	-21	diskmemload	23:05:21	1
3193178	99	50	43,5	cyclictest	3211260	-21	kworker/u4:15+events_unbound	21:23:38	0
3193180	99	48	36,8	cyclictest	0	-21	swapper/1	21:35:28	1
3193178	99	48	41,5	cyclictest	3196586	-21	sshd	19:20:34	0
3193178	99	48	35,6	cyclictest	3359104	-21	kworker/u4:17+events_unbound	23:57:46	0
3193178	99	48	30,16	cyclictest	3208695	-21	kworker/u4:1-rpciod	20:34:59	0
3193180	99	46	39,5	cyclictest	3228996	-21	fschecks_count	21:15:22	1
3193180	99	46	29,6	cyclictest	3347463	-21	kworker/u4:7+events_unbound	23:42:45	1
3193180	99	45	38,5	cyclictest	3287435	-21	kworker/u4:9-rpciod	22:30:26	1
3193180	99	45	35,7	cyclictest	0	-21	swapper/1	19:45:34	1
3193178	99	45	36,6	cyclictest	0	-21	swapper/0	00:20:39	0
3193178	99	45	34,8	cyclictest	3313612	-21	fschecks_count	23:00:21	0
3193180	99	44	37,5	cyclictest	0	-21	swapper/1	23:30:17	1
3193180	99	44	37,5	cyclictest	0	-21	swapper/1	23:30:16	1
3193180	99	44	36,6	cyclictest	0	-21	swapper/1	00:05:36	1
3193180	99	44	35,7	cyclictest	3266217	-21	timerwakeupswit	22:00:49	1
3193180	99	44	10,25	cyclictest	3361349	-21	ntpq	00:00:28	1
3193178	99	44	35,7	cyclictest	3218032	-21	aten2__	20:45:18	0
3193180	99	43	25,12	cyclictest	0	-21	swapper/1	21:59:32	1
3193180	99	42	35,5	cyclictest	3215720	-21	tune2fs	20:35:19	1
3193180	99	42	12,20	cyclictest	0	-21	swapper/1	23:45:19	1
3193178	99	42	34,6	cyclictest	3258065	-21	timerwakeupswit	21:50:40	0
3193178	99	41	32,7	cyclictest	3201471	-21	fschecks_count	19:40:20	0
3193178	99	40	33,5	cyclictest	3221729	-21	sendmail	21:00:00	0
3193180	99	39	29,8	cyclictest	3249027	-21	ssh	21:40:18	1
3193180	99	38	30,7	cyclictest	3193176	-21	cyclictest	19:51:52	1
3193180	99	34	25,7	cyclictest	0	-21	swapper/1	19:10:06	1
3193178	99	27	6,15	cyclictest	3193176	-21	cyclictest	19:09:59	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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