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 Thu Jun 11, 2026 12:44:13)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1150566	99	108	99,7	cyclictest	1319410	-21	kworker/u4:15+events_unbound	11:51:01	1
1150566	99	108	99,7	cyclictest	1319410	-21	kworker/u4:15+events_unbound	11:51:01	1
1150566	99	97	83,6	cyclictest	1151800	-21	kworker/u4:15+events_unbound	08:10:22	1
1150565	99	97	87,7	cyclictest	1168490	-21	kworker/u4:7+events_unbound	08:20:28	0
1150566	99	95	87,6	cyclictest	1151799	-21	kworker/u4:14+events_unbound	07:20:04	1
1150566	99	95	87,6	cyclictest	1151799	-21	kworker/u4:14+events_unbound	07:20:04	1
1150566	99	92	85,5	cyclictest	1240812	-21	kworker/u4:4+events_unbound	10:35:51	1
1150565	99	88	78,6	cyclictest	1245286	-21	kworker/u4:5+xprtiod	10:30:08	0
1150566	99	85	73,5	cyclictest	1354269	-21	kworker/u4:12+events_unbound	12:31:07	1
1150565	99	82	69,9	cyclictest	1269177	-21	apt-get	10:50:07	0
1150565	99	81	67,10	cyclictest	53	-21	kswapd0	09:55:12	0
1150565	99	81	67,10	cyclictest	53	-21	kswapd0	09:55:12	0
1150565	99	76	61,12	cyclictest	53	-21	kswapd0	10:25:11	0
1150565	99	76	30,42	cyclictest	0	-21	swapper/0	09:45:24	0
1150566	99	73	64,7	cyclictest	53	-21	kswapd0	10:25:01	1
1150565	99	73	65,6	cyclictest	1159484	-21	kworker/u4:3+events_unbound	07:45:12	0
1150566	99	71	63,6	cyclictest	1272069	-21	kworker/u4:12+events_unbound	11:05:56	1
1150565	99	71	60,8	cyclictest	1168492	-21	kworker/u4:9+events_unbound	09:05:01	0
1150565	99	71	27,28	cyclictest	0	-21	swapper/0	12:25:31	0
1150565	99	70	56,9	cyclictest	1186824	-21	ntp_kernel_err	09:15:28	0
1150565	99	69	61,5	cyclictest	1205851	-21	kworker/u4:3+events_unbound	09:45:00	0
1150565	99	69	43,22	cyclictest	1185865	-21	latency_hist	09:15:01	0
1150565	99	69	39,27	cyclictest	1226764	-21	timerandwakeup	10:00:41	0
1150565	99	69	34,32	cyclictest	1261021	-21	fschecks_count	10:40:21	0
1150565	99	68	35,30	cyclictest	1165179	-21	sshd	08:05:19	0
1150565	99	68	34,31	cyclictest	1295724	-21	aten_r7power_po	11:20:15	0
1150565	99	68	34,29	cyclictest	0	-21	swapper/0	11:25:29	0
1150565	99	68	30,35	cyclictest	1344483	-21	processes	12:15:38	0
1150565	99	67	9,18	cyclictest	1282546	-21	/usr/sbin/munin	11:05:12	0
1150565	99	67	4,59	cyclictest	1181330	-21	diskmemload	12:35:37	0
1150565	99	67	30,32	cyclictest	0	-21	swapper/0	11:00:33	0
1150565	99	67	29,34	cyclictest	0	-21	swapper/0	10:45:17	0
1150565	99	66	36,26	cyclictest	1230573	-21	/usr/sbin/munin	10:05:22	0
1150565	99	66	31,30	cyclictest	0	-21	swapper/0	10:10:17	0
1150565	99	65	36,25	cyclictest	0	-21	swapper/0	08:35:31	0
1150565	99	65	35,27	cyclictest	1204178	-21	tail	09:35:21	0
1150565	99	65	34,28	cyclictest	1349043	-21	grep	12:20:41	0
1150565	99	65	31,30	cyclictest	0	-21	swapper/0	11:35:22	0
1150565	99	65	31,28	cyclictest	0	-21	swapper/0	12:00:33	0
1150565	99	65	30,31	cyclictest	0	-21	swapper/0	11:40:37	0
1150565	99	65	29,34	cyclictest	1357120	-21	if_err_eth0	12:30:20	0
1150565	99	65	25,30	cyclictest	1291253	-21	ssh	11:15:09	0
1150565	99	65	23,37	cyclictest	1152043	-21	aten_r7power_cu	07:15:17	0
1150565	99	65	2,21	cyclictest	1339858	-21	ntpq	12:10:29	0
1150565	99	65	2,16	cyclictest	1243110	-21	apt-get	10:20:14	0
1150565	99	64	29,30	cyclictest	0	-21	swapper/0	11:30:33	0
1150565	99	64	25,34	cyclictest	1238799	-21	basename	10:15:15	0
1150566	99	63	56,5	cyclictest	1328288	-21	kworker/u4:8+events_unbound	12:40:01	1
1150566	99	63	55,5	cyclictest	1245286	-21	kworker/u4:5+xprtiod	10:25:10	1
1150565	99	63	32,20	cyclictest	0	-21	swapper/0	08:10:08	0
1150566	99	62	48,5	cyclictest	937184	-21	kworker/u4:0+events_unbound	08:00:02	1
1150565	99	62	36,24	cyclictest	1321737	-21	grep	11:50:15	0
1150565	99	62	36,24	cyclictest	1321737	-21	grep	11:50:14	0
1150565	99	62	34,26	cyclictest	1328285	-21	kworker/u4:3-rpciod	12:05:35	0
1150565	99	62	28,31	cyclictest	0	-21	swapper/0	09:30:26	0
1150565	99	62	28,29	cyclictest	0	-21	swapper/0	09:20:36	0
1150565	99	62	1,5	cyclictest	1318211	-21	ntpq	11:45:35	0
1150565	99	61	9,7	cyclictest	1155698	-21	grep	07:30:01	0
1150565	99	61	29,29	cyclictest	1257603	-21	/usr/sbin/munin	10:35:44	0
1150565	99	61	29,29	cyclictest	0	-21	swapper/0	08:50:33	0
1150565	99	61	26,31	cyclictest	0	-21	swapper/0	08:30:00	0
1150565	99	61	26,30	cyclictest	0	-21	swapper/0	11:10:30	0
1150565	99	61	2,14	cyclictest	1158974	-21	ntpq	07:40:25	0
1150565	99	60	27,30	cyclictest	1327090	-21	switchtime	11:55:36	0
1150565	99	60	22,35	cyclictest	1178125	-21	kernelversion	08:55:21	0
1150565	99	60	21,35	cyclictest	0	-21	swapper/0	07:55:26	0
1150566	99	59	52,6	cyclictest	1272069	-21	kworker/u4:12+events_unbound	10:55:03	1
1150566	99	59	52,5	cyclictest	1214738	-21	kworker/u4:0+events_unbound	10:00:03	1
1150566	99	59	50,7	cyclictest	1151796	-21	kworker/u4:11+events_unbound	08:05:20	1
1150566	99	59	47,9	cyclictest	1251582	-21	apt-get	10:30:08	1
1150565	99	59	51,5	cyclictest	1151797	-21	kworker/u4:12+events_unbound	07:30:06	0
1150565	99	59	2,12	cyclictest	1216808	-21	apt-get	09:50:15	0
1150565	99	59	2,12	cyclictest	1216808	-21	apt-get	09:50:15	0
1150565	99	59	1,16	cyclictest	1274739	-21	ssh	10:55:37	0
1150566	99	58	51,5	cyclictest	1258643	-21	kworker/u4:7+events_unbound	10:40:52	1
1150566	99	58	50,6	cyclictest	922836	-21	kworker/u4:10+events_unbound	07:40:03	1
1150566	99	58	50,6	cyclictest	1171075	-21	kworker/u4:5+events_unbound	09:25:40	1
1150566	99	58	50,5	cyclictest	0	-21	swapper/1	12:10:16	1
1150566	99	58	46,5	cyclictest	1165864	-21	kworker/u4:0+events_unbound	08:15:02	1
1150565	99	58	3,7	cyclictest	1168548	-21	munin-run	08:20:00	0
1150565	99	58	3,13	cyclictest	1161661	-21	ps	07:50:37	0
1150566	99	57	51,5	cyclictest	1272069	-21	kworker/u4:12+events_unbound	11:04:59	1
1150566	99	57	50,5	cyclictest	1151798	-21	kworker/u4:13+events_unbound	08:50:03	1
1150565	99	57	3,9	cyclictest	1195644	-21	ntpq	09:25:26	0
1150565	99	57	3,13	cyclictest	1174426	-21	ntpq	08:40:28	0
1150565	99	57	2,21	cyclictest	1150974	-21	fschecks_count	07:10:18	0
1150565	99	57	19,35	cyclictest	0	-21	swapper/0	08:00:35	0
1150565	99	56	2,11	cyclictest	1157680	-21	ntpq	07:35:24	0
1150565	99	56	2,10	cyclictest	1180442	-21	/usr/sbin/munin	09:05:20	0
1150565	99	56	18,35	cyclictest	0	-21	swapper/0	07:20:19	0
1150565	99	56	18,35	cyclictest	0	-21	swapper/0	07:20:19	0
1150566	99	55	46,7	cyclictest	1214738	-21	kworker/u4:0+events_unbound	09:59:59	1
1150566	99	55	46,7	cyclictest	1214738	-21	kworker/u4:0+events_unbound	09:59:59	1
1150566	99	55	46,5	cyclictest	0	-21	swapper/1	09:10:37	1
1150566	99	55	45,8	cyclictest	1213802	-21	systemd	09:45:41	1
1150565	99	55	20,31	cyclictest	0	-21	swapper/0	08:45:36	0
1150566	99	54	47,5	cyclictest	1301697	-21	kworker/u4:10+events_unbound	11:45:04	1
1150566	99	54	46,6	cyclictest	1159484	-21	kworker/u4:3+events_unbound	07:45:06	1
1150566	99	54	4,43	cyclictest	1239381	-21	ssh	10:15:25	1
1150566	99	53	46,4	cyclictest	27	1	ktimers/1	12:22:32	1
1150566	99	53	45,5	cyclictest	0	-21	swapper/1	11:20:25	1
1150565	99	53	9,8	cyclictest	1171576	-21	fschecks_time	08:30:20	0
1150566	99	52	45,5	cyclictest	1167222	-21	kworker/u4:5+events_unbound	08:20:03	1
1150566	99	52	43,7	cyclictest	1171230	-21	latency_hist	08:30:02	1
1150566	99	52	21,20	cyclictest	1174914	-21	kworker/u4:6-rpciod	09:15:34	1
1150566	99	52	21,19	cyclictest	0	-21	swapper/1	11:35:31	1
1150566	99	50	44,4	cyclictest	1204868	-21	timerandwakeup	09:35:40	1
1150566	99	50	41,7	cyclictest	1191648	-21	sd-accept	09:20:37	1
1150565	99	50	1,13	cyclictest	1150628	-21	latency_hist	07:10:02	0
1150566	99	49	42,5	cyclictest	1	-21	systemd	09:00:35	1
1150566	99	49	42,5	cyclictest	1171071	-21	kworker/u4:0+events_unbound	09:05:03	1
1150566	99	49	41,6	cyclictest	1220902	-21	cron	09:55:00	1
1150566	99	49	41,6	cyclictest	1220902	-21	cron	09:55:00	1
1150566	99	49	39,7	cyclictest	1287281	-21	fschecks_time	11:10:21	1
1150566	99	49	3,28	cyclictest	1291242	-21	ssh	11:15:06	1
1150566	99	48	41,5	cyclictest	1344506	-21	sendmail_mailqu	12:15:38	1
1150566	99	48	41,5	cyclictest	1177454	-21	kworker/u4:2+events_unbound	08:55:02	1
1150566	99	47	40,4	cyclictest	1157500	-21	gltestperf	07:35:19	1
1150566	99	47	39,5	cyclictest	0	-21	swapper/1	09:30:12	1
1150566	99	47	37,7	cyclictest	1313341	-21	fschecks_count	11:40:19	1
1150566	99	47	37,6	cyclictest	0	-21	swapper/1	11:30:26	1
1150566	99	46	39,5	cyclictest	1175370	-21	fschecks_count	08:45:17	1
1150566	99	45	39,5	cyclictest	1328283	-21	kworker/u4:1+events_unbound	12:08:00	1
1150566	99	45	38,5	cyclictest	1326089	-21	aten2__	11:55:14	1
1150566	99	45	38,5	cyclictest	1210301	-21	kworker/u4:1+events_unbound	09:43:45	1
1150566	99	45	38,5	cyclictest	1151791	-21	kworker/u4:8+events_unbound	07:53:02	1
1150566	99	45	36,7	cyclictest	1273564	-21	latency_hist	10:55:01	1
1150566	99	45	34,7	cyclictest	1303982	-21	kworker/u4:6	11:30:00	1
1150566	99	45	33,5	cyclictest	1151795	-21	kworker/u4:9+events_unbound	07:18:01	1
1150566	99	44	38,5	cyclictest	1310578	-21	kworker/u4:9+events_unbound	12:29:59	1
1150566	99	44	36,6	cyclictest	1155656	-21	cron	07:30:00	1
1150566	99	44	35,6	cyclictest	1227467	-21	kworker/u4:11-rpciod	10:05:38	1
1150566	99	44	3,30	cyclictest	1331361	-21	ssh	12:00:40	1
1150566	99	43	37,5	cyclictest	1258644	-21	kworker/u4:8+events_unbound	10:45:53	1
1150566	99	43	37,4	cyclictest	1238499	-21	latency_hist	10:15:02	1
1150566	99	43	37,4	cyclictest	1172348	-21	kworker/u4:14-rpciod	08:40:38	1
1150566	99	43	36,5	cyclictest	1151838	-21	idleruntime-cro	07:15:00	1
1150566	99	43	36,5	cyclictest	1149296	-21	kworker/u4:6+events_unbound	07:56:00	1
1150566	99	43	34,6	cyclictest	0	-21	swapper/1	08:30:31	1
1150566	99	42	35,5	cyclictest	1167221	-21	kworker/u4:4+events_unbound	08:39:45	1
1150566	99	42	35,5	cyclictest	1151790	-21	kworker/u4:4+events_unbound	07:31:46	1
1150566	99	39	31,6	cyclictest	0	-21	swapper/1	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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