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 Thu Apr 23, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1194506	99	96	41,34	cyclictest	1385239	-21	grep	12:10:38	0
1194507	99	91	80,9	cyclictest	1180426	-21	kworker/u4:1+events_unbound	07:10:14	1
1194507	99	90	83,5	cyclictest	1382147	-21	kworker/u4:5+events_unbound	12:16:27	1
1194507	99	87	72,12	cyclictest	0	-21	swapper/1	11:00:27	1
1194507	99	85	76,7	cyclictest	1193237	-21	kworker/u4:3+events_unbound	07:20:17	1
1194507	99	83	76,5	cyclictest	1294692	-21	kworker/u4:5+events_unbound	10:31:06	1
1194507	99	83	76,5	cyclictest	1294692	-21	kworker/u4:5+events_unbound	10:31:05	1
1194507	99	82	76,4	cyclictest	1338472	-21	kworker/u4:1+events_unbound	11:46:23	1
1194506	99	82	70,9	cyclictest	1245636	-21	kworker/u4:3+events_unbound	09:56:01	0
1194507	99	77	67,5	cyclictest	1250158	-21	kworker/u4:1+events_unbound	09:45:57	1
1194507	99	74	66,6	cyclictest	1329605	-21	kworker/u4:2+events_unbound	11:36:23	1
1194506	99	74	25,46	cyclictest	0	-21	swapper/0	09:15:00	0
1194507	99	72	64,6	cyclictest	1193239	-21	kworker/u4:5+events_unbound	07:45:27	1
1194507	99	72	61,5	cyclictest	1303702	-21	kworker/u4:11+events_unbound	10:41:07	1
1194507	99	72	52,13	cyclictest	0	-21	swapper/1	09:40:15	1
1194506	99	72	58,10	cyclictest	1307255	-21	ssh	10:41:13	0
1194506	99	72	24,45	cyclictest	1367097	-21	gltestperf	11:50:19	0
1194507	99	71	63,6	cyclictest	1329605	-21	kworker/u4:2+events_unbound	11:10:00	1
1194507	99	71	59,10	cyclictest	1212449	-21	kworker/u4:7+events_unbound	08:20:01	1
1194506	99	71	36,31	cyclictest	1392437	-21	ssh	12:20:01	0
1194507	99	70	60,6	cyclictest	1285617	-21	kworker/u4:8+events_unbound	10:25:01	1
1194506	99	70	4,8	cyclictest	1371723	-21	ntpq	11:55:28	0
1194506	99	70	29,38	cyclictest	0	-21	swapper/0	10:55:03	0
1194506	99	69	37,30	cyclictest	1271724	-21	sshd	10:01:02	0
1194506	99	69	36,31	cyclictest	1336681	-21	kernelversion	11:15:22	0
1194507	99	68	49,8	cyclictest	1199590	-21	kworker/u4:4+events_unbound	08:50:01	1
1194506	99	68	4,25	cyclictest	1345521	-21	ntpq	11:25:25	0
1194506	99	68	35,30	cyclictest	1206917	-21	sd-accept	07:55:34	0
1194506	99	68	3,21	cyclictest	1301262	-21	sh	10:35:12	0
1194506	99	68	31,34	cyclictest	0	-21	swapper/0	09:40:37	0
1194506	99	67	56,8	cyclictest	1202880	-21	systemd	07:40:22	0
1194506	99	67	56,8	cyclictest	1202880	-21	systemd	07:40:22	0
1194506	99	67	45,20	cyclictest	1328533	-21	timerandwakeup	11:05:38	0
1194506	99	67	34,30	cyclictest	0	-21	swapper/0	12:35:19	0
1194506	99	67	3,28	cyclictest	1402137	-21	ntpq	12:30:29	0
1194506	99	66	31,32	cyclictest	1220245	-21	munin-plugin-st	08:50:01	0
1194506	99	66	30,33	cyclictest	0	-21	swapper/0	10:45:21	0
1194506	99	66	28,35	cyclictest	1212450	-21	kworker/u4:12-rpciod	08:35:19	0
1194506	99	66	28,35	cyclictest	0	-21	swapper/0	09:10:00	0
1194507	99	65	56,7	cyclictest	1204790	-21	kworker/u4:6+events_unbound	07:55:35	1
1194506	99	65	34,28	cyclictest	0	-21	swapper/0	11:20:40	0
1194506	99	65	31,31	cyclictest	0	-21	swapper/0	07:20:16	0
1194506	99	65	30,32	cyclictest	0	-21	swapper/0	10:50:29	0
1194506	99	65	29,33	cyclictest	0	-21	swapper/0	10:15:18	0
1194506	99	65	28,35	cyclictest	1207595	-21	aten_r7power_cu	08:00:15	0
1194506	99	65	28,33	cyclictest	0	-21	swapper/0	11:11:07	0
1194507	99	64	52,8	cyclictest	315	-21	systemd-journal	10:46:08	1
1194507	99	64	52,5	cyclictest	1180426	-21	kworker/u4:1+events_unbound	07:10:01	1
1194506	99	64	34,28	cyclictest	1279351	-21	fschecks_count	10:10:17	0
1194506	99	64	31,2	cyclictest	0	-21	swapper/0	10:25:24	0
1194506	99	64	29,31	cyclictest	0	-21	swapper/0	11:30:28	0
1194506	99	64	27,34	cyclictest	0	-21	swapper/0	09:25:02	0
1194506	99	64	26,35	cyclictest	0	-21	swapper/0	07:30:39	0
1194506	99	63	54,7	cyclictest	378	-21	dbus-daemon	09:15:54	0
1194506	99	63	27,6	cyclictest	0	-21	swapper/0	09:20:25	0
1194506	99	63	26,7	cyclictest	1247710	-21	latency_hist	09:35:01	0
1194506	99	63	26,4	cyclictest	0	-21	swapper/0	12:25:29	0
1194506	99	62	33,27	cyclictest	1297908	-21	threads	10:30:37	0
1194506	99	62	33,27	cyclictest	1297908	-21	threads	10:30:37	0
1194506	99	62	31,28	cyclictest	0	-21	swapper/0	07:50:37	0
1194506	99	62	31,27	cyclictest	0	-21	swapper/0	08:20:36	0
1194506	99	62	30,6	cyclictest	1193237	-21	kworker/u4:3+rpciod	07:20:01	0
1194506	99	62	24,5	cyclictest	0	-21	swapper/0	08:15:28	0
1194507	99	61	54,5	cyclictest	1259161	-21	kworker/u4:0+events_unbound	10:15:01	1
1194507	99	61	54,5	cyclictest	1245638	-21	kworker/u4:6+events_unbound	09:35:57	1
1194507	99	61	53,6	cyclictest	1359988	-21	kworker/u4:9+events_unbound	12:01:26	1
1194506	99	61	4,12	cyclictest	1278666	-21	ssh	10:09:57	0
1194506	99	61	28,30	cyclictest	0	-21	swapper/0	09:50:18	0
1194506	99	61	27,30	cyclictest	0	-21	swapper/0	10:20:21	0
1194506	99	61	25,6	cyclictest	0	-21	swapper/0	08:25:38	0
1194506	99	61	25,5	cyclictest	0	-21	swapper/0	07:25:14	0
1194506	99	61	1,15	cyclictest	1354226	-21	ntpq	11:35:25	0
1194506	99	60	24,5	cyclictest	0	-21	swapper/0	09:45:18	0
1194506	99	60	23,8	cyclictest	1193238	-21	kworker/u4:4-xprtiod	07:10:23	0
1194506	99	60	22,7	cyclictest	0	-21	swapper/0	07:45:48	0
1194506	99	60	21,6	cyclictest	0	-21	swapper/0	09:35:32	0
1194507	99	59	43,5	cyclictest	1216286	-21	kworker/u4:10+events_unbound	08:40:01	1
1194507	99	58	51,5	cyclictest	1195736	-21	kworker/u4:6+events_unbound	07:25:18	1
1194506	99	58	48,8	cyclictest	1221471	-21	systemd	08:50:49	0
1194506	99	58	26,4	cyclictest	0	-21	swapper/0	12:00:27	0
1194507	99	57	44,5	cyclictest	1180426	-21	kworker/u4:1+events_unbound	07:40:02	1
1194506	99	57	31,24	cyclictest	1323186	-21	aten_r7power_po	11:00:16	0
1194506	99	57	25,6	cyclictest	0	-21	swapper/0	12:20:25	0
1194507	99	56	49,5	cyclictest	1225354	-21	diskmemload	12:21:27	1
1194506	99	56	48,6	cyclictest	1216286	-21	kworker/u4:10+events_unbound	08:35:01	0
1194506	99	56	25,6	cyclictest	1380675	-21	sendmail_mailqu	12:05:36	0
1194507	99	54	46,6	cyclictest	1405950	-21	/usr/sbin/munin	12:35:19	1
1194507	99	54	45,7	cyclictest	1275595	-21	mailstats	10:05:38	1
1194507	99	54	41,4	cyclictest	1334040	-21	kworker/u4:4+events_unbound	11:28:59	1
1194507	99	53	47,4	cyclictest	1197002	-21	kworker/u4:8+events_unbound	08:10:01	1
1194507	99	53	45,6	cyclictest	1341245	-21	sshd	11:20:29	1
1194507	99	53	44,6	cyclictest	1232718	-21	kworker/u4:9+events_unbound	09:20:31	1
1194506	99	53	40,5	cyclictest	1338472	-21	kworker/u4:1+events_unbound	11:41:22	0
1194507	99	52	39,10	cyclictest	0	-21	swapper/1	12:30:14	1
1194507	99	52	2,39	cyclictest	1284267	-21	ssh	10:15:31	1
1194507	99	51	43,6	cyclictest	1196174	-21	fschecks_count	07:15:18	1
1194507	99	50	42,6	cyclictest	1399217	-21	kworker/u4:1+events_unbound	12:27:00	1
1194507	99	50	42,6	cyclictest	1296604	-21	latency_hist	10:30:01	1
1194507	99	50	41,6	cyclictest	1263685	-21	kworker/u4:10+events_unbound	09:57:00	1
1194506	99	50	5,36	cyclictest	1363156	-21	ssh	11:45:36	0
1194507	99	49	42,5	cyclictest	1204791	-21	kworker/u4:9+events_unbound	07:55:01	1
1194507	99	48	40,6	cyclictest	1359988	-21	kworker/u4:9+events_unbound	12:06:00	1
1194507	99	48	40,6	cyclictest	1262245	-21	/usr/sbin/munin	09:50:39	1
1194507	99	48	38,7	cyclictest	53	-21	kswapd0	11:20:01	1
1194507	99	47	40,5	cyclictest	1231025	-21	ldconfig	09:15:38	1
1194507	99	47	40,5	cyclictest	1203106	-21	sendmail_mailqu	07:40:36	1
1194507	99	47	40,5	cyclictest	1203106	-21	sendmail_mailqu	07:40:35	1
1194507	99	47	39,6	cyclictest	1259161	-21	kworker/u4:0+events_unbound	10:51:00	1
1194507	99	47	36,7	cyclictest	0	-21	swapper/1	10:35:37	1
1194506	99	47	37,7	cyclictest	0	-21	swapper/0	08:05:37	0
1194507	99	46	40,4	cyclictest	1198317	-21	kworker/u4:15+events_unbound	07:30:19	1
1194507	99	46	39,5	cyclictest	1385386	-21	/usr/sbin/munin	12:10:38	1
1194507	99	46	39,5	cyclictest	1225290	-21	unixbench_singl	09:05:37	1
1194507	99	46	38,4	cyclictest	0	-21	swapper/1	11:55:32	1
1194507	99	46	33,8	cyclictest	0	-21	swapper/1	11:35:00	1
1194507	99	45	38,5	cyclictest	1366874	-21	df_abs	11:50:17	1
1194507	99	45	36,5	cyclictest	0	-21	swapper/1	11:10:30	1
1194507	99	45	19,23	cyclictest	1066	-21	snmpd	09:29:58	1
1194507	99	44	37,5	cyclictest	1244173	-21	rm	09:30:26	1
1194507	99	44	34,7	cyclictest	1225321	-21	kworker/u4:12-rpciod	09:10:27	1
1194507	99	44	34,7	cyclictest	0	-21	swapper/1	11:40:28	1
1194506	99	44	34,6	cyclictest	0	-21	swapper/0	08:10:39	0
1194507	99	43	37,4	cyclictest	0	-21	swapper/1	08:55:50	1
1194507	99	43	36,5	cyclictest	1311879	-21	kworker/u4:14+events_unbound	10:55:58	1
1194507	99	43	31,8	cyclictest	1263683	-21	kworker/u4:8-rpciod	10:00:38	1
1194506	99	43	35,6	cyclictest	1201098	-21	aten_r7power_cu	07:35:14	0
1194506	99	43	35,5	cyclictest	1222453	-21	cat	08:55:35	0
1194507	99	42	35,5	cyclictest	1221480	-21	kworker/u4:11+events_unbound	08:55:02	1
1194507	99	41	33,6	cyclictest	1204791	-21	kworker/u4:9+events_unbound	08:00:30	1
1194507	99	41	29,9	cyclictest	1210179	-21	basename	08:10:15	1
1194506	99	41	31,8	cyclictest	1218566	-21	grep	08:40:35	0
1194506	99	41	31,7	cyclictest	1223044	-21	aten_r7power_en	09:00:15	0
1194507	99	39	31,6	cyclictest	1213495	-21	grep	08:20:37	1
1194507	99	39	29,8	cyclictest	1223994	-21	head	09:00:37	1
1194507	99	39	29,6	cyclictest	1193239	-21	kworker/u4:5+rpciod	08:25:25	1
1194507	99	39	28,9	cyclictest	1218772	-21	timerwakeupswit	08:40:36	1
1194507	99	38	30,6	cyclictest	0	-21	swapper/1	08:30:19	1
1194506	99	38	30,5	cyclictest	1193237	-21	kworker/u4:3-rpciod	07:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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