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 Jul 27, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1197837	99	99	92,5	cyclictest	1347313	-21	kworker/u4:3+events_unbound	23:31:29	1
1197836	99	96	88,6	cyclictest	1351811	-21	kworker/u4:12+events_unbound	23:36:30	0
1197837	99	93	85,6	cyclictest	1258412	-21	kworker/u4:12+events_unbound	21:46:07	1
1197836	99	93	83,7	cyclictest	1391641	-21	kworker/u4:14+events_unbound	00:33:41	0
1197836	99	92	84,6	cyclictest	1404495	-21	kworker/u4:5+events_unbound	00:28:14	0
1197836	99	89	80,7	cyclictest	1333791	-21	kworker/u4:11+events_unbound	23:11:27	0
1197836	99	88	80,6	cyclictest	1381999	-21	kworker/u4:1+events_unbound	00:03:03	0
1197836	99	88	80,6	cyclictest	1338285	-21	kworker/u4:2+events_unbound	23:26:28	0
1197836	99	87	80,5	cyclictest	1208193	-21	kworker/u4:7+events_unbound	19:50:44	0
1197836	99	86	79,5	cyclictest	987967	-21	kworker/u4:11+events_unbound	20:15:48	0
1197836	99	86	78,6	cyclictest	987967	-21	kworker/u4:11+events_unbound	19:40:43	0
1197836	99	86	78,6	cyclictest	1200435	-21	kworker/u4:12+events_unbound	19:25:43	0
1197836	99	80	72,6	cyclictest	1200420	-21	kworker/u4:8+events_unbound	19:30:43	0
1197837	99	77	70,5	cyclictest	1174530	-21	kworker/u4:14+events_unbound	19:45:44	1
1197837	99	77	58,6	cyclictest	1298449	-21	kworker/u4:0+events_unbound	22:36:21	1
1197836	99	75	47,24	cyclictest	1174530	-21	kworker/u4:14+xprtiod	19:45:13	0
1197836	99	73	66,5	cyclictest	1208192	-21	kworker/u4:6+events_unbound	20:55:59	0
1197837	99	72	56,6	cyclictest	1404496	-21	kworker/u4:6+events_unbound	00:28:38	1
1197836	99	71	64,5	cyclictest	1212029	-21	kworker/u4:12+events_unbound	20:35:56	0
1197837	99	68	60,6	cyclictest	1174530	-21	kworker/u4:14+events_unbound	20:40:57	1
1197837	99	68	59,6	cyclictest	1272031	-21	kworker/u4:12+events_unbound	22:11:12	1
1197837	99	67	61,4	cyclictest	1197772	-21	kworker/u4:3+events_unbound	19:15:01	1
1197837	99	67	60,5	cyclictest	1280409	-21	kworker/u4:3+events_unbound	22:26:15	1
1197837	99	65	56,6	cyclictest	1194129	-21	kworker/u4:0+events_unbound	19:20:41	1
1197837	99	64	57,5	cyclictest	1369137	-21	kworker/u4:2+events_unbound	23:52:33	1
1197837	99	64	57,5	cyclictest	1258410	-21	kworker/u4:9+events_unbound	22:16:13	1
1197836	99	64	55,6	cyclictest	1373634	-21	kworker/u4:10+events_unbound	23:57:35	0
1197836	99	62	44,13	cyclictest	53	-21	kswapd0	22:20:01	0
1197837	99	61	54,5	cyclictest	1400006	-21	kworker/u4:0+events_unbound	00:23:39	1
1197837	99	59	53,4	cyclictest	1324777	-21	kworker/u4:1+events_unbound	23:16:27	1
1197837	99	59	45,9	cyclictest	0	-21	swapper/1	21:55:38	1
1197837	99	59	42,7	cyclictest	1391640	-21	kworker/u4:10+events_unbound	00:15:01	1
1197836	99	59	40,17	cyclictest	1273631	-21	basename	22:00:00	0
1197837	99	58	49,7	cyclictest	378	-21	dbus-daemon	22:56:22	1
1197837	99	58	47,8	cyclictest	1274311	-21	fschecks_time	22:00:20	1
1197836	99	58	47,8	cyclictest	1300621	-21	basename	22:30:18	0
1197837	99	57	50,5	cyclictest	1298454	-21	kworker/u4:6+events_unbound	22:31:19	1
1197836	99	56	43,8	cyclictest	0	-21	swapper/0	22:25:32	0
1197837	99	55	2,39	cyclictest	1243264	-21	ssh	21:25:29	1
1197836	99	55	7,14	cyclictest	0	-21	swapper/0	19:15:14	0
1197836	99	55	7,14	cyclictest	0	-21	swapper/0	19:15:13	0
1197836	99	55	49,5	cyclictest	1208192	-21	kworker/u4:6+events_unbound	20:05:01	0
1197836	99	55	45,8	cyclictest	1258404	-21	kworker/u4:1-rpciod	22:05:24	0
1197836	99	55	40,6	cyclictest	1369140	-21	kworker/u4:5+events_unbound	00:21:42	0
1197836	99	55	36,16	cyclictest	53	-21	kswapd0	21:50:08	0
1197837	99	54	5,36	cyclictest	1234300	-21	ssh	21:15:34	1
1197837	99	54	46,6	cyclictest	1174530	-21	kworker/u4:14+events_unbound	21:10:59	1
1197836	99	54	36,14	cyclictest	53	-21	kswapd0	22:20:09	0
1197836	99	54	2,46	cyclictest	0	-21	swapper/0	23:05:11	0
1197836	99	54	2,46	cyclictest	0	-21	swapper/0	23:05:10	0
1197836	99	53	45,6	cyclictest	1345964	-21	timerwakeupswit	23:20:39	0
1197836	99	52	45,5	cyclictest	1209464	-21	kworker/u4:9+events_unbound	20:30:03	0
1197836	99	52	44,6	cyclictest	1264852	-21	latency_hist	21:50:02	0
1197836	99	52	43,6	cyclictest	1226804	-21	/usr/sbin/munin	21:00:21	0
1197837	99	51	44,5	cyclictest	1359110	-21	/usr/sbin/munin	23:35:41	1
1197837	99	51	44,5	cyclictest	1336362	-21	gltestperf	23:10:18	1
1197837	99	51	44,5	cyclictest	1289422	-21	kworker/u4:5+events_unbound	22:21:16	1
1197837	99	51	43,6	cyclictest	1212030	-21	kworker/u4:13+events_unbound	20:25:50	1
1197836	99	51	42,5	cyclictest	1371579	-21	sed	23:50:16	0
1197836	99	51	41,7	cyclictest	0	-21	swapper/0	00:10:26	0
1197837	99	50	43,5	cyclictest	1266276	-21	timerandwakeup	21:50:49	1
1197837	99	50	42,6	cyclictest	1182780	-21	kworker/u4:5+events_unbound	20:00:19	1
1197836	99	50	30,13	cyclictest	256	50	irq/23-42890000.ethernet	22:35:41	0
1197837	99	49	43,4	cyclictest	1414397	-21	systemd	00:38:39	1
1197837	99	49	39,8	cyclictest	1215827	-21	systemd	20:15:48	1
1197836	99	49	5,8	cyclictest	1340346	-21	apt-get	23:15:12	0
1197836	99	49	41,5	cyclictest	1234784	-21	unixbench_multi	21:15:45	0
1197837	99	48	41,5	cyclictest	1282495	-21	ssh	22:10:01	1
1197836	99	48	41,5	cyclictest	1239355	-21	unixbench_singl	21:20:45	0
1197836	99	48	40,6	cyclictest	1209463	-21	kworker/u4:8+events_unbound	20:11:13	0
1197836	99	48	30,16	cyclictest	0	-21	swapper/0	21:25:19	0
1197837	99	47	40,5	cyclictest	1309446	-21	aten2__	22:40:17	1
1197837	99	47	39,6	cyclictest	1204258	-21	sshd	19:30:42	1
1197836	99	47	8,23	cyclictest	0	-21	swapper/0	00:35:29	0
1197836	99	47	41,5	cyclictest	1219683	-21	kworker/u4:3+events_unbound	21:10:03	0
1197836	99	47	40,5	cyclictest	1318751	-21	if_eth0	22:50:20	0
1197836	99	47	40,5	cyclictest	1210766	-21	apt	20:00:01	0
1197836	99	47	39,6	cyclictest	1331398	-21	latency_hist	23:05:02	0
1197836	99	47	37,8	cyclictest	1322753	-21	aten_r7power_en	22:55:16	0
1197836	99	47	27,11	cyclictest	17	1	rcu_preempt	22:42:09	0
1197837	99	46	39,5	cyclictest	1338288	-21	kworker/u4:6+events_unbound	23:40:39	1
1197837	99	46	38,5	cyclictest	1375940	-21	aten_r7power_vo	23:55:16	1
1197836	99	46	38,6	cyclictest	1222699	-21	grep	20:45:19	0
1197836	99	46	37,6	cyclictest	1385781	-21	ssh	00:05:41	0
1197836	99	46	37,6	cyclictest	1252529	-21	proc_pri	21:35:40	0
1197836	99	46	36,6	cyclictest	0	-21	swapper/0	21:40:35	0
1197836	99	46	33,5	cyclictest	1208193	-21	kworker/u4:7+events_unbound	20:27:38	0
1197837	99	45	38,5	cyclictest	1380907	-21	sshd	00:00:27	1
1197837	99	45	38,5	cyclictest	1244628	-21	kworker/u4:15+events_unbound	21:31:05	1
1197837	99	45	38,5	cyclictest	0	-21	swapper/1	19:55:14	1
1197837	99	45	36,7	cyclictest	400	-21	systemd-logind	23:06:25	1
1197837	99	45	36,7	cyclictest	400	-21	systemd-logind	23:06:25	1
1197837	99	45	34,7	cyclictest	0	-21	swapper/1	23:25:17	1
1197837	99	45	33,11	cyclictest	27	1	ktimers/1	20:55:33	1
1197837	99	45	14,8	cyclictest	17	1	rcu_preempt	22:50:27	1
1197836	99	45	38,5	cyclictest	1362906	-21	fschecks_time	23:40:21	0
1197836	99	45	38,5	cyclictest	1353975	-21	fschecks_count	23:30:20	0
1197836	99	45	36,7	cyclictest	1223976	-21	fschecks_count	20:50:19	0
1197836	99	45	36,6	cyclictest	0	-21	swapper/0	23:45:20	0
1197836	99	45	33,6	cyclictest	1200436	-21	kworker/u4:13+events_unbound	19:22:45	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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