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 highest latencies:

System rack7slot2.osadl.org (updated Sun Sep 06, 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
1125421	99	89	39,47	cyclictest	0	-21	swapper/1	23:50:12	1
1125421	99	87	80,5	cyclictest	1297389	-21	kworker/u4:14+events_unbound	23:58:12	1
1125420	99	87	79,6	cyclictest	1319487	-21	kworker/u4:7+events_unbound	00:13:14	0
1125420	99	85	76,6	cyclictest	1194390	-21	kworker/u4:14+events_unbound	21:52:46	0
1125420	99	84	76,6	cyclictest	1319487	-21	kworker/u4:7+events_unbound	00:23:19	0
1125420	99	81	73,6	cyclictest	1265581	-21	kworker/u4:2+events_unbound	00:03:13	0
1125420	99	80	71,7	cyclictest	1131755	-21	kworker/u4:3+events_unbound	19:52:24	0
1125420	99	75	68,5	cyclictest	1283739	-21	kworker/u4:5+events_unbound	23:33:09	0
1125420	99	75	65,7	cyclictest	1252634	-21	kworker/u4:10+events_unbound	22:58:01	0
1125421	99	74	67,5	cyclictest	1217022	-21	kworker/u4:6+events_unbound	22:22:55	1
1125420	99	65	57,6	cyclictest	1133027	-21	kworker/u4:12+events_unbound	20:22:29	0
1125420	99	65	50,5	cyclictest	1288297	-21	kworker/u4:10+events_unbound	23:38:11	0
1125421	99	64	54,7	cyclictest	1207982	-21	kworker/u4:11+events_unbound	22:12:51	1
1125420	99	63	54,6	cyclictest	1142053	-21	kworker/u4:11+events_unbound	20:12:27	0
1125420	99	62	53,7	cyclictest	1243573	-21	kworker/u4:9+events_unbound	23:28:08	0
1125420	99	62	53,7	cyclictest	1221550	-21	kworker/u4:15+events_unbound	22:27:57	0
1125420	99	61	47,11	cyclictest	1156200	-21	kworker/u4:16+events_unbound	21:15:14	0
1125421	99	60	51,6	cyclictest	1126641	-21	kworker/u4:17+events_unbound	19:57:25	1
1125421	99	60	50,7	cyclictest	53	-21	kswapd0	00:15:19	1
1125421	99	59	52,5	cyclictest	0	-21	swapper/1	23:10:28	1
1125421	99	59	48,8	cyclictest	53	-21	kswapd0	00:20:21	1
1125420	99	59	46,9	cyclictest	1296362	-21	diskmemload	23:46:06	0
1125421	99	58	50,6	cyclictest	1151003	-21	kworker/u4:0+events_unbound	21:37:43	1
1125421	99	58	48,7	cyclictest	1251981	-21	kworker/u4:7+events_unbound	23:03:02	1
1125421	99	58	37,18	cyclictest	1140723	-21	apt-get	20:10:06	1
1125420	99	57	49,6	cyclictest	1133027	-21	kworker/u4:12+events_unbound	20:17:28	0
1125420	99	57	48,7	cyclictest	1172620	-21	kworker/u4:2+events_unbound	21:27:43	0
1125420	99	57	48,7	cyclictest	1172620	-21	kworker/u4:2+events_unbound	21:27:42	0
1125420	99	57	48,6	cyclictest	0	-21	swapper/0	21:40:38	0
1125420	99	57	43,9	cyclictest	1245347	-21	modprobe	22:50:00	0
1125421	99	56	49,5	cyclictest	1242902	-21	kworker/u4:4+events_unbound	23:23:07	1
1125420	99	56	47,6	cyclictest	1302637	-21	ssh	23:53:51	0
1125421	99	55	46,7	cyclictest	1288295	-21	kworker/u4:7+events_unbound	23:48:12	1
1125420	99	55	48,4	cyclictest	0	-21	swapper/0	22:05:30	0
1125420	99	55	47,6	cyclictest	1124144	-21	kworker/u4:14+events_unbound	20:42:34	0
1125420	99	55	45,7	cyclictest	788634	-21	kworker/u4:8+events_unbound	20:37:33	0
1125420	99	55	45,7	cyclictest	788634	-21	kworker/u4:8+events_unbound	20:37:33	0
1125421	99	54	47,5	cyclictest	1197939	-21	/usr/sbin/munin	21:55:41	1
1125421	99	54	46,6	cyclictest	1319487	-21	kworker/u4:7+events_unbound	00:38:23	1
1125421	99	54	46,5	cyclictest	1232274	-21	apt-get	22:35:15	1
1125421	99	53	45,6	cyclictest	1188829	-21	/usr/sbin/munin	21:45:38	1
1125421	99	53	44,7	cyclictest	1268122	-21	aten_r7power_vo	23:15:16	1
1125420	99	53	46,5	cyclictest	1292841	-21	kworker/u4:11+events_unbound	23:43:11	0
1125420	99	53	45,6	cyclictest	1268145	-21	cpu	23:15:17	0
1125420	99	53	41,8	cyclictest	1242902	-21	kworker/u4:4+events_unbound	22:50:23	0
1125421	99	52	45,5	cyclictest	1317915	-21	diskmemload	00:10:32	1
1125421	99	52	45,5	cyclictest	1202304	-21	timerwakeupswit	22:00:41	1
1125421	99	52	42,7	cyclictest	1281295	-21	munin-node	23:30:09	1
1125420	99	52	41,7	cyclictest	1220087	-21	ssh	22:20:40	0
1125420	99	52	40,8	cyclictest	1238715	-21	ssh	22:41:39	0
1125421	99	51	43,6	cyclictest	1124144	-21	kworker/u4:14+events_unbound	21:05:01	1
1125421	99	51	42,7	cyclictest	1245775	-21	aten2__	22:50:22	1
1125420	99	51	44,5	cyclictest	1321721	-21	aten_r7power_en	00:15:16	0
1125420	99	51	44,5	cyclictest	1188181	-21	tune2fs	21:45:20	0
1125420	99	51	42,6	cyclictest	1133950	-21	grep	19:40:36	0
1125421	99	50	44,4	cyclictest	1330941	-21	fschecks_count	00:25:20	1
1125421	99	50	42,6	cyclictest	0	-21	swapper/1	22:15:29	1
1125421	99	50	41,6	cyclictest	1156241	-21	diskmemload	00:05:22	1
1125421	99	50	40,8	cyclictest	1144712	-21	latency_hist	20:25:01	1
1125420	99	50	43,5	cyclictest	1228497	-21	ssh	22:30:28	0
1125420	99	50	41,6	cyclictest	788634	-21	kworker/u4:8+events_unbound	20:57:38	0
1125420	99	50	37,7	cyclictest	1163448	-21	kworker/u4:7-rpciod	21:37:45	0
1125420	99	50	36,12	cyclictest	1233205	-21	open_files	22:35:39	0
1125421	99	49	42,5	cyclictest	1308307	-21	aten_r7power_en	00:00:17	1
1125421	99	49	42,5	cyclictest	1196349	-21	munin-run	21:55:00	1
1125421	99	49	39,8	cyclictest	1291461	-21	timerandwakeup	23:40:43	1
1125421	99	49	39,7	cyclictest	1152906	-21	fschecks_time	20:55:18	1
1125421	99	49	38,8	cyclictest	1286035	-21	df_abs	23:35:17	1
1125421	99	49	36,8	cyclictest	1217022	-21	kworker/u4:6-rpciod	22:45:02	1
1125421	99	49	33,5	cyclictest	1177127	-21	kworker/u4:10+events_unbound	21:42:44	1
1125420	99	49	42,5	cyclictest	1272734	-21	/usr/sbin/munin	23:20:20	0
1125420	99	49	41,6	cyclictest	1146421	-21	fschecks_time	20:30:20	0
1125420	99	49	40,7	cyclictest	1133027	-21	kworker/u4:12+events_unbound	19:47:23	0
1125420	99	49	40,6	cyclictest	1151003	-21	kworker/u4:0+events_unbound	21:31:45	0
1125420	99	49	28,19	cyclictest	1139868	-21	fschecks_count	20:05:19	0
1125421	99	48	42,4	cyclictest	1174867	-21	df_abs	21:30:20	1
1125421	99	48	41,5	cyclictest	1135624	-21	sh	19:50:00	1
1125421	99	48	40,6	cyclictest	1198905	-21	kworker/u4:0+events_unbound	22:07:50	1
1125421	99	48	40,5	cyclictest	1132250	-21	fschecks_time	19:35:20	1
1125421	99	48	39,7	cyclictest	1170571	-21	fschecks_time	21:25:25	1
1125421	99	48	39,7	cyclictest	1170571	-21	fschecks_time	21:25:25	1
1125421	99	48	39,7	cyclictest	1125602	-21	aten2__	19:10:15	1
1125421	99	48	36,9	cyclictest	1277339	-21	fschecks_count	23:25:33	1
1125420	99	48	41,5	cyclictest	1255260	-21	/usr/sbin/munin	23:00:25	0
1125420	99	48	41,5	cyclictest	1166724	-21	switchtime	21:20:41	0
1125421	99	47	39,6	cyclictest	1131757	-21	kworker/u4:7+events_unbound	19:32:22	1
1125421	99	47	39,5	cyclictest	1166026	-21	fschecks_time	21:20:21	1
1125421	99	47	38,6	cyclictest	1154931	-21	kworker/u4:13-rpciod	21:10:12	1
1125420	99	47	41,4	cyclictest	0	-21	swapper/0	23:05:30	0
1125420	99	47	40,5	cyclictest	1215224	-21	ldconfig	22:15:30	0
1125420	99	47	39,6	cyclictest	1313026	-21	fschecks_count	00:05:22	0
1125420	99	47	39,6	cyclictest	1248102	-21	kworker/u4:3+events_unbound	23:13:04	0
1125420	99	47	38,6	cyclictest	1339709	-21	ssh	00:35:19	0
1125420	99	47	37,7	cyclictest	1156202	-21	systemd	21:07:38	0
1125421	99	46	39,5	cyclictest	1239032	-21	kworker/u4:0-rpciod	22:55:36	1
1125421	99	46	39,5	cyclictest	1194389	-21	kworker/u4:12-rpciod	22:30:38	1
1125421	99	46	39,5	cyclictest	1165272	-21	cron	21:20:00	1
1125421	99	46	38,6	cyclictest	1314914	-21	kworker/u4:4+events_unbound	00:30:04	1
1125421	99	46	38,5	cyclictest	1151034	-21	kworker/u4:8	20:50:01	1
1125421	99	46	37,6	cyclictest	1151003	-21	kworker/u4:0+events_unbound	20:50:02	1
1125420	99	46	39,5	cyclictest	1130729	-21	aten_r7power_cu	19:30:15	0
1125420	99	46	37,6	cyclictest	1151648	-21	gltestperf	20:50:25	0
1125420	99	46	37,6	cyclictest	1145212	-21	gltestperf	20:25:22	0
1125420	99	46	37,6	cyclictest	1105473	-21	kworker/u4:0-rpciod	19:15:01	0
1125420	99	46	33,11	cyclictest	1157094	-21	if_eth0	21:10:21	0
1125421	99	45	39,4	cyclictest	1236864	-21	cut	22:40:17	1
1125421	99	45	39,4	cyclictest	1155871	-21	sendmail_mailqu	21:05:37	1
1125421	99	45	38,5	cyclictest	1130541	-21	latency_hist	19:30:01	1
1125420	99	45	38,5	cyclictest	1154987	-21	latency_hist	21:05:00	0
1125420	99	45	36,7	cyclictest	1210459	-21	gltestperf	22:10:22	0
1125420	99	45	33,9	cyclictest	1186109	-21	kworker/u4:5-rpciod	21:55:22	0
1125420	99	45	30,10	cyclictest	0	-21	swapper/0	20:45:25	0
1125420	99	45	25,17	cyclictest	0	-21	swapper/0	00:25:23	0
1125421	99	44	38,4	cyclictest	1145918	-21	kworker/u4:14	20:29:59	1
1125421	99	44	37,5	cyclictest	1224582	-21	unixbench-2d	22:25:39	1
1125420	99	44	36,5	cyclictest	1335438	-21	fschecks_count	00:30:24	0
1125421	99	43	36,5	cyclictest	1149664	-21	unixbench_multi	20:40:44	1
1125421	99	43	36,5	cyclictest	1142469	-21	df_abs	20:15:18	1
1125421	99	43	35,6	cyclictest	1252635	-21	kworker/u4:11+events_unbound	23:09:45	1
1125420	99	43	32,8	cyclictest	0	-21	swapper/0	22:00:27	0
1125421	99	42	32,7	cyclictest	0	-21	swapper/1	20:10:24	1
1125420	99	42	33,6	cyclictest	1115474	-21	kworker/u4:13-xprtiod	19:15:36	0
1125420	99	42	30,8	cyclictest	1129347	-21	latency_hist	19:25:01	0
1125420	99	42	30,8	cyclictest	1129347	-21	latency_hist	19:25:00	0
1125420	99	42	22,17	cyclictest	0	-21	swapper/0	00:00:01	0
1125421	99	41	34,4	cyclictest	1146126	-21	cut	20:30:16	1
1125421	99	41	34,4	cyclictest	1134379	-21	grep	19:45:01	1
1125421	99	41	30,8	cyclictest	1129261	-21	idleruntime-cro	19:25:00	1
1125421	99	41	30,8	cyclictest	1129261	-21	idleruntime-cro	19:24:59	1
1125420	99	41	3,29	cyclictest	1125418	-21	cyclictest	19:10:00	0
1125421	99	40	33,5	cyclictest	1131755	-21	kworker/u4:3-rpciod	20:35:17	1
1125421	99	40	33,5	cyclictest	1131755	-21	kworker/u4:3-rpciod	20:35:17	1
1125421	99	40	33,5	cyclictest	1115474	-21	kworker/u4:13-rpciod	19:15:20	1
1125420	99	40	29,8	cyclictest	1129443	-21	aten2__	19:25:16	0
1125420	99	40	23,15	cyclictest	1132278	-21	fschecks_time	19:35:20	0
1125421	99	39	32,5	cyclictest	1136901	-21	munin-plugin-st	19:55:00	1
1125420	99	39	30,7	cyclictest	1138644	-21	fschecks_count	20:00:19	0
1125421	99	38	30,6	cyclictest	0	-21	swapper/1	20:00:27	1
1125420	99	35	25,6	cyclictest	0	-21	swapper/0	19:55:26	0
1125421	99	31	23,6	cyclictest	0	-21	swapper/1	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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