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 all highest latencies:

System rack7slot2.osadl.org (updated Wed Jan 07, 2026 12:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1177990	99	137	97,28	cyclictest	54	-21	kswapd0	11:35:07	0
1177990	99	128	120,6	cyclictest	1184424	-21	kworker/u4:18+events_unbound	07:44:01	0
1177990	99	98	92,4	cyclictest	1177915	-21	kworker/u4:13+events_unbound	08:39:10	0
1177990	99	96	90,4	cyclictest	1180535	-21	kworker/u4:5+events_unbound	08:34:10	0
1177990	99	90	83,5	cyclictest	1180537	-21	kworker/u4:12+events_unbound	07:39:01	0
1177990	99	89	81,6	cyclictest	1180536	-21	kworker/u4:11+events_unbound	07:28:59	0
1177990	99	85	77,6	cyclictest	1202286	-21	kworker/u4:12+events_unbound	08:54:14	0
1177990	99	80	73,5	cyclictest	1180537	-21	kworker/u4:12+events_unbound	08:14:06	0
1177990	99	78	71,5	cyclictest	1177915	-21	kworker/u4:13+events_unbound	08:09:04	0
1177990	99	74	67,5	cyclictest	1189466	-21	kworker/u4:1+events_unbound	08:04:05	0
1177991	99	70	61,6	cyclictest	1378656	-21	kworker/u4:4+events_unbound	12:39:57	1
1177991	99	66	61,3	cyclictest	1329085	-21	kworker/u4:4+events_unbound	11:34:44	1
1177991	99	64	54,8	cyclictest	0	-21	swapper/1	10:15:26	1
1177990	99	64	57,5	cyclictest	1177986	-21	cyclictest	09:49:39	0
1177990	99	64	50,10	cyclictest	1377313	-21	ntp_states	12:30:33	0
1177990	99	64	50,10	cyclictest	1377313	-21	ntp_states	12:30:32	0
1177990	99	64	21,40	cyclictest	255	50	irq/23-42890000.ethernet	10:05:37	0
1177991	99	63	53,7	cyclictest	1339487	-21	/usr/sbin/munin	11:45:12	1
1177990	99	63	39,8	cyclictest	1222862	-21	switchtime	09:25:38	0
1177991	99	61	48,10	cyclictest	1201904	-21	ps	08:40:34	1
1177990	99	59	49,7	cyclictest	54	-21	kswapd0	11:35:00	0
1177991	99	58	50,5	cyclictest	1262140	-21	kworker/u4:8+events_unbound	10:49:35	1
1177991	99	58	48,7	cyclictest	54	-21	kswapd0	11:00:10	1
1177990	99	57	51,5	cyclictest	1190724	-21	kworker/u4:6+events_unbound	08:27:43	0
1177990	99	57	50,5	cyclictest	1204802	-21	kworker/u4:3+events_unbound	08:55:42	0
1177991	99	56	35,9	cyclictest	17	1	rcu_preempt	10:35:16	1
1177990	99	56	49,5	cyclictest	1345817	-21	kworker/u4:15+events_unbound	12:18:58	0
1177990	99	56	47,7	cyclictest	1248027	-21	/usr/sbin/munin	09:55:29	0
1177990	99	56	35,14	cyclictest	17	1	rcu_preempt	12:10:41	0
1177991	99	55	48,5	cyclictest	54	-21	kswapd0	10:20:17	1
1177991	99	55	47,5	cyclictest	1318529	-21	munin-run	11:20:00	1
1177991	99	55	43,8	cyclictest	37	-21	kcompactd0	10:58:53	1
1177991	99	55	22,20	cyclictest	0	-21	swapper/1	09:56:39	1
1177990	99	55	47,5	cyclictest	1311590	-21	timerwakeupswit	11:10:38	0
1177990	99	55	4,39	cyclictest	1273467	-21	ssh	10:25:28	0
1177991	99	54	44,8	cyclictest	54	-21	kswapd0	11:30:00	1
1177990	99	54	45,6	cyclictest	1285188	-21	ssh	10:40:01	0
1177990	99	54	39,9	cyclictest	1262140	-21	kworker/u4:8+events_unbound	10:22:40	0
1177990	99	54	3,37	cyclictest	1373122	-21	ssh	12:25:30	0
1177991	99	53	45,6	cyclictest	1256142	-21	fschecks_count	10:05:22	1
1177991	99	53	42,9	cyclictest	1300138	-21	kworker/u4:1+events_unbound	11:15:02	1
1177991	99	53	40,9	cyclictest	1279436	-21	ssh	10:32:31	1
1177991	99	53	31,13	cyclictest	1192028	-21	kworker/u4:1	08:05:00	1
1177991	99	53	17,20	cyclictest	0	-21	swapper/1	12:25:33	1
1177990	99	53	46,5	cyclictest	1337435	-21	kworker/u4:0+events_unbound	12:01:45	0
1177990	99	53	45,6	cyclictest	1236347	-21	kworker/u4:10+events_unbound	09:50:12	0
1177990	99	53	41,7	cyclictest	54	-21	kswapd0	12:20:12	0
1177990	99	53	33,18	cyclictest	1306395	-21	aten2__	11:05:16	0
1177991	99	52	45,5	cyclictest	1234947	-21	grep	09:40:21	1
1177991	99	52	44,6	cyclictest	1343767	-21	wget	11:50:16	1
1177991	99	52	43,5	cyclictest	0	-21	swapper/1	09:50:20	1
1177990	99	52	45,5	cyclictest	1384517	-21	grep	12:40:01	0
1177990	99	52	45,5	cyclictest	1210015	-21	mailstats	09:10:37	0
1177990	99	52	42,8	cyclictest	1162861	-21	kworker/u4:9+events_unbound	08:17:00	0
1177990	99	51	44,5	cyclictest	1300138	-21	kworker/u4:1+events_unbound	11:28:00	0
1177990	99	51	44,5	cyclictest	1293539	-21	munin-plugin-st	10:50:00	0
1177990	99	51	44,5	cyclictest	1262139	-21	kworker/u4:7+events_unbound	10:33:59	0
1177990	99	51	44,5	cyclictest	1180534	-21	kworker/u4:4+events_unbound	07:45:03	0
1177990	99	51	44,5	cyclictest	1162861	-21	kworker/u4:9+events_unbound	07:24:00	0
1177990	99	51	44,5	cyclictest	1162861	-21	kworker/u4:9+events_unbound	07:24:00	0
1177990	99	51	42,4	cyclictest	1195942	-21	kworker/u4:11+events_unbound	08:40:44	0
1177990	99	51	2,42	cyclictest	1348409	-21	ntpq	11:55:28	0
1177991	99	50	43,5	cyclictest	1177986	-21	cyclictest	12:14:52	1
1177991	99	50	42,5	cyclictest	0	-21	swapper/1	10:50:25	1
1177991	99	50	39,8	cyclictest	1181033	-21	tune2fs	07:20:19	1
1177991	99	50	39,8	cyclictest	1181033	-21	tune2fs	07:20:18	1
1177990	99	50	43,5	cyclictest	1177915	-21	kworker/u4:13+events_unbound	07:15:44	0
1177991	99	49	42,5	cyclictest	1222529	-21	ntp_kernel_pll_	09:25:28	1
1177990	99	49	43,4	cyclictest	1319409	-21	kernelversion	11:20:22	0
1177990	99	49	42,5	cyclictest	1186958	-21	kworker/u4:10+events_unbound	07:54:59	0
1177990	99	49	41,6	cyclictest	1318299	-21	ssh	11:19:39	0
1177990	99	49	40,7	cyclictest	1262140	-21	kworker/u4:8+events_unbound	12:09:53	0
1177990	99	49	2,2	cyclictest	0	-21	swapper/0	11:40:26	0
1177991	99	48	41,5	cyclictest	1193387	-21	munin-plugin-st	08:10:00	1
1177990	99	48	42,4	cyclictest	1173058	-21	kworker/u4:2+events_unbound	07:59:00	0
1177990	99	48	41,5	cyclictest	1202289	-21	kworker/u4:16+events_unbound	08:47:02	0
1177990	99	48	38,8	cyclictest	1252824	-21	/usr/sbin/munin	10:00:38	0
1177990	99	48	38,8	cyclictest	1230654	-21	/usr/sbin/munin	09:35:19	0
1177991	99	47	40,5	cyclictest	0	-21	swapper/1	10:10:11	1
1177991	99	47	39,5	cyclictest	1189466	-21	kworker/u4:1+events_unbound	08:15:02	1
1177991	99	47	38,6	cyclictest	1306645	-21	fschecks_count	11:05:19	1
1177991	99	47	38,6	cyclictest	1239877	-21	timerandwakeup	09:45:35	1
1177991	99	47	28,13	cyclictest	1207456	-21	modprobe	09:05:00	1
1177990	99	47	40,5	cyclictest	1202288	-21	kworker/u4:15+events_unbound	09:05:04	0
1177990	99	47	37,8	cyclictest	1286026	-21	kernelversion	10:40:22	0
1177990	99	47	29,16	cyclictest	1301932	-21	awk	11:00:00	0
1177990	99	47	20,19	cyclictest	255	50	irq/23-42890000.ethernet	07:10:09	0
1177991	99	46	39,5	cyclictest	1286388	-21	sendmail_mailst	10:40:37	1
1177991	99	46	39,5	cyclictest	1197673	-21	fschecks_count	08:25:19	1
1177991	99	46	39,5	cyclictest	1178096	-21	latency_hist	07:10:01	1
1177991	99	46	38,6	cyclictest	1356284	-21	fschecks_count	12:05:20	1
1177991	99	46	36,7	cyclictest	1234447	-21	latency_hist	09:40:02	1
1177991	99	46	34,9	cyclictest	1203173	-21	ps	08:45:32	1
1177991	99	46	32,11	cyclictest	1210168	-21	ls	09:10:39	1
1177991	99	46	30,6	cyclictest	0	-21	swapper/1	09:20:02	1
1177990	99	46	38,5	cyclictest	1068	-21	snmpd	09:43:53	0
1177990	99	46	37,7	cyclictest	1196253	-21	aten_r7power_en	08:20:16	0
1177990	99	46	36,8	cyclictest	1340576	-21	switchtime	11:45:42	0
1177991	99	45	37,6	cyclictest	1200133	-21	df_abs	08:35:16	1
1177991	99	45	37,6	cyclictest	1198974	-21	fschecks_count	08:30:18	1
1177991	99	45	36,7	cyclictest	1197242	-21	systemd	08:24:06	1
1177991	99	45	34,9	cyclictest	1208729	-21	diskmemload	12:15:39	1
1177990	99	45	38,5	cyclictest	1304398	-21	kworker/u4:5+events_unbound	11:04:38	0
1177990	99	45	36,6	cyclictest	0	-21	swapper/0	09:15:25	0
1177990	99	45	35,7	cyclictest	1206143	-21	kworker/u4:0-rpciod	09:00:16	0
1177990	99	45	31,12	cyclictest	0	-21	swapper/0	10:10:34	0
1177990	99	45	26,17	cyclictest	1297777	-21	latency_hist	10:55:02	0
1177991	99	44	38,4	cyclictest	1188673	-21	fschecks_count	07:50:21	1
1177991	99	44	37,5	cyclictest	1229669	-21	ssh	09:34:26	1
1177991	99	44	36,6	cyclictest	1345816	-21	kworker/u4:14+events_unbound	11:59:51	1
1177991	99	44	36,5	cyclictest	1185203	-21	ntp_kernel_pll_	07:35:27	1
1177991	99	44	35,7	cyclictest	1218148	-21	kernelversion	09:20:21	1
1177990	99	44	35,7	cyclictest	1183505	-21	aten_r7power_vo	07:30:21	0
1177991	99	43	36,5	cyclictest	1184093	-21	sendmail_mailqu	07:30:39	1
1177991	99	43	35,5	cyclictest	1368732	-21	grep	12:20:20	1
1177991	99	43	31,9	cyclictest	0	-21	swapper/1	12:00:28	1
1177991	99	43	23,16	cyclictest	1336188	-21	ntpq	11:40:35	1
1177990	99	43	36,5	cyclictest	1221283	-21	sshd	09:24:39	0
1177990	99	43	35,5	cyclictest	1264532	-21	fschecks_count	10:15:19	0
1177990	99	43	34,6	cyclictest	1341636	-21	kworker/u4:2-rpciod	11:50:15	0
1177990	99	43	34,6	cyclictest	1215303	-21	kworker/u4:2-rpciod	09:30:27	0
1177991	99	42	36,4	cyclictest	1179506	-21	aten2__	07:15:16	1
1177991	99	42	35,5	cyclictest	1331694	-21	cut	11:35:27	1
1177991	99	42	35,5	cyclictest	1177986	-21	cyclictest	11:20:27	1
1177991	99	42	34,6	cyclictest	1177915	-21	kworker/u4:13-rpciod	08:00:00	1
1177991	99	42	32,7	cyclictest	0	-21	swapper/1	12:30:29	1
1177991	99	42	32,7	cyclictest	0	-21	swapper/1	12:30:29	1
1177991	99	42	25,13	cyclictest	1272758	-21	ssh	10:25:12	1
1177991	99	42	24,14	cyclictest	1251804	-21	df_inode	10:00:17	1
1177991	99	42	19,13	cyclictest	27	1	ktimers/1	07:45:13	1
1177991	99	41	31,7	cyclictest	1186262	-21	gltestperf	07:40:21	1
1177990	99	41	33,5	cyclictest	1162861	-21	kworker/u4:9-rpciod	07:10:01	0
1177991	99	40	33,5	cyclictest	1202287	-21	kworker/u4:14-xprtiod	08:55:01	1
1177991	99	40	28,9	cyclictest	0	-21	swapper/1	07:25:17	1
1177991	99	40	26,10	cyclictest	1205132	-21	basename	08:55:20	1
1177991	99	39	33,4	cyclictest	1207687	-21	aten_r7power_cu	09:05:16	1
1177991	99	39	33,4	cyclictest	1195211	-21	fschecks_time	08:15:21	1
1177991	99	39	32,5	cyclictest	1179306	-21	sh	07:15:00	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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