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 376 highest latencies:

System rack7slot2.osadl.org (updated Fri Jun 05, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
913249	99	102	93,7	cyclictest	1103330	-21	kworker/u4:5+events_unbound	00:12:51	0
913249	99	96	88,5	cyclictest	1012516	-21	kworker/u4:6+events_unbound	22:37:42	0
913249	99	90	82,6	cyclictest	1115879	-21	kworker/u4:18+events_unbound	00:32:55	0
913249	99	90	82,5	cyclictest	914480	-21	kworker/u4:8+events_unbound	19:45:01	0
913249	99	87	72,13	cyclictest	924709	-21	kworker/u4:5+events_unbound	21:17:31	0
913249	99	80	6,33	cyclictest	1053616	-21	ssh	23:15:11	0
913251	99	76	71,3	cyclictest	0	-21	swapper/1	00:30:29	1
913251	99	75	64,8	cyclictest	0	-21	swapper/1	23:50:30	1
913249	99	75	59,10	cyclictest	913247	-21	cyclictest	22:41:38	0
913249	99	74	66,6	cyclictest	1008099	-21	kworker/u4:1+events_unbound	22:32:41	0
913249	99	74	66,6	cyclictest	1008099	-21	kworker/u4:1+events_unbound	22:32:41	0
913249	99	74	57,4	cyclictest	924709	-21	kworker/u4:5+events_unbound	21:35:00	0
913249	99	74	46,24	cyclictest	53	-21	kswapd0	21:00:20	0
913251	99	69	60,6	cyclictest	1093184	-21	ntp_states	00:00:35	1
913249	99	68	63,3	cyclictest	1064650	-21	kworker/u4:11+events_unbound	23:30:00	0
913249	99	67	48,7	cyclictest	1038329	-21	kworker/u4:15+events_unbound	22:57:45	0
913249	99	66	58,6	cyclictest	1103331	-21	kworker/u4:7+events_unbound	00:27:54	0
913249	99	66	52,10	cyclictest	53	-21	kswapd0	23:40:14	0
913251	99	64	56,6	cyclictest	910747	-21	kworker/u4:4+events_unbound	20:50:01	1
913251	99	64	23,12	cyclictest	993547	-21	ntpq	22:05:26	1
913249	99	64	57,5	cyclictest	1030158	-21	kworker/u4:2+events_unbound	23:40:00	0
913249	99	64	57,5	cyclictest	1012513	-21	kworker/u4:0+events_unbound	23:07:47	0
913249	99	64	50,7	cyclictest	0	-21	swapper/0	22:45:11	0
913249	99	62	54,5	cyclictest	959716	-21	kworker/u4:17+events_unbound	22:07:37	0
913249	99	62	33,15	cyclictest	0	-21	swapper/0	22:00:27	0
913249	99	62	1,44	cyclictest	1058807	-21	ssh	23:20:34	0
913249	99	60	44,14	cyclictest	923438	-21	kworker/u4:10+events_unbound	20:02:20	0
913249	99	60	33,17	cyclictest	256	50	irq/23-42890000.ethernet	00:05:38	0
913251	99	59	18,15	cyclictest	1102905	-21	ssh	00:11:46	1
913249	99	59	48,8	cyclictest	1044821	-21	latency_hist	23:05:02	0
913249	99	59	46,8	cyclictest	1077130	-21	kworker/u4:0+events_unbound	23:56:01	0
913251	99	58	21,13	cyclictest	1045862	-21	ssh	23:05:35	1
913251	99	58	19,14	cyclictest	1041991	-21	ssh	23:00:43	1
913249	99	58	41,12	cyclictest	1079949	-21	if_err_eth0	23:45:22	0
913249	99	58	33,15	cyclictest	0	-21	swapper/0	21:55:12	0
913251	99	57	50,5	cyclictest	1023324	-21	/usr/sbin/munin	22:40:15	1
913251	99	57	46,8	cyclictest	0	-21	swapper/1	20:45:00	1
913251	99	57	20,15	cyclictest	1091393	-21	ssh	23:59:02	1
913251	99	57	19,11	cyclictest	1081094	-21	ssh	23:46:16	1
913251	99	57	18,14	cyclictest	1038043	-21	ssh	22:56:22	1
913251	99	57	17,12	cyclictest	1021668	-21	ssh	22:37:54	1
913251	99	57	16,16	cyclictest	1000165	-21	ssh	22:13:19	1
913251	99	57	15,17	cyclictest	983797	-21	ssh	21:54:59	1
913249	99	57	47,7	cyclictest	1033226	-21	/usr/sbin/munin	22:50:40	0
913251	99	56	19,11	cyclictest	968634	-21	ssh	21:36:57	1
913251	99	56	18,11	cyclictest	1069803	-21	ssh	23:33:52	1
913251	99	56	18,11	cyclictest	1029575	-21	ssh	22:46:41	1
913251	99	56	17,15	cyclictest	963467	-21	ssh	21:30:47	1
913251	99	56	16,15	cyclictest	992068	-21	ssh	22:04:15	1
913251	99	56	16,15	cyclictest	1060028	-21	ssh	23:21:53	1
913251	99	56	16,11	cyclictest	950770	-21	ssh	21:16:46	1
913249	99	56	48,5	cyclictest	966471	-21	/usr/sbin/munin	21:35:11	0
913249	99	56	42,12	cyclictest	1083893	-21	cpu	23:50:17	0
913251	99	55	20,10	cyclictest	978604	-21	ssh	21:48:46	1
913251	99	55	20,10	cyclictest	947487	-21	ssh	21:13:32	1
913251	99	55	19,12	cyclictest	987833	-21	ssh	21:59:28	1
913251	99	55	18,11	cyclictest	955687	-21	ssh	21:22:24	1
913251	99	55	17,10	cyclictest	1110301	-21	ntpq	00:20:29	1
913251	99	55	16,14	cyclictest	1124656	-21	ssh	00:37:03	1
913251	99	55	15,15	cyclictest	1072793	-21	ssh	23:36:44	1
913249	99	55	48,5	cyclictest	955234	-21	kworker/u4:14+events_unbound	21:29:46	0
913249	99	55	48,5	cyclictest	910747	-21	kworker/u4:4+events_unbound	19:35:00	0
913249	99	55	40,10	cyclictest	1069794	-21	ssh	23:33:51	0
913251	99	54	16,13	cyclictest	1116392	-21	ssh	00:27:38	1
913251	99	54	16,13	cyclictest	1107290	-21	ssh	00:16:54	1
913251	99	54	16,11	cyclictest	1033919	-21	ssh	22:51:41	1
913251	99	54	15,14	cyclictest	1050849	-21	ssh	23:11:07	1
913249	99	54	40,12	cyclictest	1106278	-21	/usr/sbin/munin	00:15:39	0
913251	99	53	40,8	cyclictest	37	-21	kcompactd0	23:44:57	1
913251	99	53	20,11	cyclictest	1012449	-21	ssh	22:27:04	1
913251	99	53	16,13	cyclictest	1004528	-21	ssh	22:18:19	1
913251	99	53	14,12	cyclictest	1064362	-21	ssh	23:26:58	1
913249	99	53	46,5	cyclictest	917056	-21	kworker/u4:0+events_unbound	19:27:18	0
913249	99	53	45,6	cyclictest	944729	-21	/usr/sbin/munin	21:10:21	0
913249	99	53	3,38	cyclictest	954165	-21	ntpq	21:20:40	0
913251	99	52	44,6	cyclictest	930624	-21	sshd	20:15:29	1
913251	99	52	44,5	cyclictest	1014940	-21	fschecks_count	22:30:20	1
913251	99	52	44,5	cyclictest	1014940	-21	fschecks_count	22:30:19	1
913251	99	52	17,11	cyclictest	1098836	-21	ssh	00:07:07	1
913251	99	52	14,13	cyclictest	973224	-21	ssh	21:42:16	1
913251	99	52	14,13	cyclictest	1008856	-21	ssh	22:23:15	1
913249	99	52	8,30	cyclictest	0	-21	swapper/0	00:00:28	0
913249	99	52	31,18	cyclictest	0	-21	swapper/0	23:10:13	0
913251	99	51	17,6	cyclictest	935128	-21	apt-get	20:35:13	1
913249	99	51	44,5	cyclictest	971674	-21	diskmemload	21:40:30	0
913249	99	51	41,7	cyclictest	979870	-21	/usr/sbin/munin	21:50:16	0
913249	99	51	34,5	cyclictest	932396	-21	kworker/u4:11+events_unbound	20:25:01	0
913249	99	51	33,16	cyclictest	979385	-21	rm	21:49:59	0
913249	99	50	41,6	cyclictest	910747	-21	kworker/u4:4+events_unbound	20:20:00	0
913249	99	50	40,8	cyclictest	913174	-21	kworker/u4:2+events_unbound	20:40:00	0
913251	99	49	30,16	cyclictest	925472	-21	ntpq	19:55:26	1
913251	99	49	15,11	cyclictest	961411	-21	ssh	21:29:28	1
913249	99	49	42,5	cyclictest	929818	-21	kworker/u4:1+events_unbound	20:32:24	0
913249	99	49	41,5	cyclictest	1001572	-21	wget	22:15:14	0
913249	99	49	41,5	cyclictest	0	-21	swapper/0	00:35:13	0
913251	99	48	39,7	cyclictest	913452	-21	aten_r7power_cu	19:10:16	1
913251	99	48	15,11	cyclictest	1073	-21	snmpd	19:34:47	1
913251	99	47	37,7	cyclictest	913247	-21	cyclictest	23:15:45	1
913251	99	47	15,9	cyclictest	916556	-21	ntpq	19:20:27	1
913251	99	47	12,12	cyclictest	941611	-21	apt-get	21:00:18	1
913249	99	47	41,5	cyclictest	917057	-21	kworker/u4:1+events_unbound	19:37:20	0
913249	99	47	40,5	cyclictest	913174	-21	kworker/u4:2+events_unbound	20:42:25	0
913249	99	47	27,7	cyclictest	0	-21	swapper/0	22:30:01	0
913251	99	46	39,5	cyclictest	932958	-21	gltestperf	20:25:19	1
913251	99	46	35,9	cyclictest	941336	-21	cron	21:00:00	1
913251	99	46	30,12	cyclictest	933858	-21	apt-get	20:30:12	1
913251	99	46	30,11	cyclictest	928127	-21	ntpq	20:05:33	1
913251	99	46	11,13	cyclictest	921654	-21	ntpq	19:40:29	1
913249	99	46	38,5	cyclictest	932908	-21	fschecks_time	20:25:20	0
913249	99	46	36,7	cyclictest	916322	-21	fschecks_time	19:20:20	0
913251	99	45	37,6	cyclictest	929895	-21	latency_hist	20:15:01	1
913249	99	45	37,6	cyclictest	909454	-21	kworker/u4:1+events_unbound	19:17:17	0
913249	99	45	37,6	cyclictest	1006376	-21	gltestperf	22:20:19	0
913251	99	44	36,6	cyclictest	920152	-21	gltestperf	19:35:19	1
913251	99	44	12,10	cyclictest	915336	-21	ntpq	19:15:33	1
913249	99	44	37,5	cyclictest	1110780	-21	unixbench_multi	00:20:39	0
913249	99	44	35,7	cyclictest	925888	-21	unixbench_multi	19:55:37	0
913249	99	44	34,7	cyclictest	928757	-21	aten2__	20:10:14	0
913249	99	44	24,17	cyclictest	997621	-21	gltestperf	22:10:21	0
913249	99	43	36,5	cyclictest	924711	-21	kworker/u4:7+events_unbound	20:52:29	0
913249	99	43	26,15	cyclictest	938895	-21	latency_hist	20:50:01	0
913251	99	42	28,10	cyclictest	926771	-21	ntpq	20:00:27	1
913251	99	41	34,5	cyclictest	923890	-21	grep	19:50:18	1
913251	99	41	32,6	cyclictest	0	-21	swapper/1	19:30:01	1
913251	99	40	31,6	cyclictest	913358	-21	latency_hist	19:10:01	1
913251	99	40	26,11	cyclictest	922998	-21	ntpq	19:45:35	1
913251	99	40	25,12	cyclictest	939548	-21	ntpq	20:50:27	1
913251	99	40	10,9	cyclictest	943423	-21	ntpq	21:05:26	1
913249	99	40	34,4	cyclictest	940428	-21	df_abs	20:55:15	0
913249	99	40	29,7	cyclictest	922547	-21	df	19:45:16	0
913251	99	39	32,5	cyclictest	931643	-21	uniq	20:20:18	1
913249	99	39	31,5	cyclictest	910747	-21	kworker/u4:4-rpciod	20:05:20	0
913249	99	39	29,6	cyclictest	943906	-21	unixbench_singl	21:05:41	0
913249	99	38	20,16	cyclictest	0	-21	swapper/0	19:10:19	0
913249	99	34	27,5	cyclictest	923950	-21	fschecks_time	19:50:19	0
913249	99	29	21,5	cyclictest	913174	-21	kworker/u4:2-rpciod	19:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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