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 Wed May 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
1185780	99	110	94,6	cyclictest	1379376	-21	kworker/u4:8+events_unbound	00:22:07	0
1185783	99	99	92,5	cyclictest	1352489	-21	kworker/u4:14+events_unbound	00:02:03	1
1185780	99	98	91,5	cyclictest	1263928	-21	kworker/u4:10+events_unbound	22:01:44	0
1185780	99	98	84,6	cyclictest	1228034	-21	kworker/u4:17+events_unbound	21:36:42	0
1185780	99	94	88,5	cyclictest	1352489	-21	kworker/u4:14+events_unbound	00:17:07	0
1185780	99	80	73,5	cyclictest	1326222	-21	kworker/u4:0+events_unbound	23:26:53	0
1185780	99	79	72,5	cyclictest	1326224	-21	kworker/u4:3+events_unbound	23:16:53	0
1185780	99	76	68,6	cyclictest	1228034	-21	kworker/u4:17+events_unbound	21:31:41	0
1185783	99	74	24,28	cyclictest	0	-21	swapper/1	00:27:23	1
1185783	99	74	24,28	cyclictest	0	-21	swapper/1	00:27:22	1
1185780	99	74	68,4	cyclictest	1201079	-21	kworker/u4:6+events_unbound	21:10:01	0
1185780	99	74	66,6	cyclictest	1263928	-21	kworker/u4:10+events_unbound	22:26:49	0
1185780	99	73	65,6	cyclictest	1321747	-21	kworker/u4:8+events_unbound	23:11:52	0
1185783	99	72	34,35	cyclictest	1240657	-21	unixbench-2d	21:35:42	1
1185780	99	72	59,10	cyclictest	15	1	ktimers/0	23:51:56	0
1185780	99	72	50,14	cyclictest	53	-21	kswapd0	23:35:10	0
1185783	99	71	43,25	cyclictest	1352489	-21	kworker/u4:14-rpciod	00:15:42	1
1185780	99	71	66,3	cyclictest	1201081	-21	kworker/u4:9+events_unbound	20:26:37	0
1185780	99	71	63,6	cyclictest	1352488	-21	kworker/u4:12+events_unbound	23:41:55	0
1185780	99	71	62,6	cyclictest	1272948	-21	kworker/u4:6+events_unbound	22:16:48	0
1185780	99	70	63,5	cyclictest	1290350	-21	kworker/u4:7+events_unbound	22:36:49	0
1185780	99	70	59,5	cyclictest	1201082	-21	kworker/u4:11+events_unbound	20:41:37	0
1185780	99	70	51,16	cyclictest	53	-21	kswapd0	21:55:08	0
1185780	99	70	50,16	cyclictest	1213892	-21	apt-get	21:00:12	0
1185783	99	69	52,10	cyclictest	1292693	-21	apt-get	22:35:11	1
1185783	99	69	37,29	cyclictest	1217608	-21	/usr/sbin/munin	21:10:29	1
1185780	99	69	61,6	cyclictest	1197234	-21	kworker/u4:3+events_unbound	20:06:35	0
1185780	99	68	60,6	cyclictest	1201078	-21	kworker/u4:5+events_unbound	20:11:34	0
1185783	99	66	13,48	cyclictest	1346877	-21	ssh	23:35:36	1
1185780	99	66	59,6	cyclictest	1187007	-21	kworker/u4:11+events_unbound	19:56:33	0
1185783	99	65	5,56	cyclictest	1311620	-21	ps	22:55:38	1
1185783	99	65	49,10	cyclictest	1248117	-21	modprobe	21:45:00	1
1185783	99	65	2,16	cyclictest	1284806	-21	ntpq	22:25:26	1
1185783	99	65	2,14	cyclictest	1363629	-21	apt-get	23:55:10	1
1185783	99	64	56,6	cyclictest	1250920	-21	kworker/u4:9+events_unbound	21:51:42	1
1185783	99	64	32,29	cyclictest	1317268	-21	kworker/u4:2-xprtiod	23:40:17	1
1185780	99	64	9,43	cyclictest	1185756	-21	munin-run	19:09:59	0
1185783	99	63	34,27	cyclictest	0	-21	swapper/1	23:15:28	1
1185783	99	63	32,28	cyclictest	1306333	-21	aten2__	22:50:15	1
1185783	99	63	3,12	cyclictest	1298370	-21	ps	22:40:36	1
1185783	99	63	31,29	cyclictest	1267254	-21	sshd	22:05:36	1
1185783	99	63	2,15	cyclictest	1338002	-21	ntpq	23:25:32	1
1185780	99	63	56,5	cyclictest	1401203	-21	kworker/u4:7+events_unbound	00:37:10	0
1185783	99	62	24,32	cyclictest	0	-21	swapper/1	22:00:35	1
1185783	99	62	2,15	cyclictest	1249291	-21	ssh	21:45:35	1
1185783	99	62	18,39	cyclictest	1330067	-21	kworker/u4:10+rpciod	23:30:11	1
1185780	99	62	53,5	cyclictest	1315447	-21	grep	23:00:19	0
1185780	99	62	44,12	cyclictest	1336531	-21	ssh	23:24:24	0
1185783	99	61	32,27	cyclictest	1359863	-21	sh	23:50:24	1
1185783	99	61	26,32	cyclictest	0	-21	swapper/1	22:30:35	1
1185783	99	60	30,27	cyclictest	0	-21	swapper/1	22:20:29	1
1185783	99	60	27,28	cyclictest	0	-21	swapper/1	20:30:38	1
1185783	99	60	26,30	cyclictest	1192513	-21	sed	19:35:17	1
1185783	99	60	2,14	cyclictest	1214814	-21	ntpq	21:00:43	1
1185783	99	60	1,11	cyclictest	1210236	-21	apt-get	20:45:12	1
1185783	99	59	29,26	cyclictest	0	-21	swapper/1	21:25:19	1
1185783	99	59	23,31	cyclictest	0	-21	swapper/1	00:05:18	1
1185783	99	59	2,15	cyclictest	1208314	-21	ntpq	20:35:33	1
1185783	99	59	21,34	cyclictest	1261712	-21	cat	22:00:02	1
1185783	99	59	15,40	cyclictest	1226885	-21	ssh	21:20:38	1
1185783	99	58	31,25	cyclictest	1403158	-21	idleruntime-cro	00:39:59	1
1185783	99	58	27,27	cyclictest	0	-21	swapper/1	00:20:42	1
1185780	99	58	51,5	cyclictest	1197233	-21	kworker/u4:0+events_unbound	20:01:35	0
1185780	99	58	49,7	cyclictest	1212579	-21	systemd	20:51:38	0
1185783	99	57	4,8	cyclictest	1271725	-21	ntpq	22:10:40	1
1185783	99	57	3,12	cyclictest	1302139	-21	ssh	22:45:19	1
1185783	99	57	26,27	cyclictest	0	-21	swapper/1	00:30:16	1
1185783	99	57	2,17	cyclictest	1332795	-21	ssh	23:20:11	1
1185783	99	57	1,5	cyclictest	1324833	-21	ntpq	23:10:36	1
1185783	99	57	14,40	cyclictest	1216545	-21	diskmemload	23:45:40	1
1185783	99	57	1,15	cyclictest	1204424	-21	ntpq	20:20:26	1
1185783	99	57	1,15	cyclictest	1189058	-21	ntpq	19:20:24	1
1185780	99	57	51,4	cyclictest	1246362	-21	kworker/u4:6+events_unbound	21:45:20	0
1185783	99	56	5,10	cyclictest	1316060	-21	ps	23:00:38	1
1185783	99	56	3,10	cyclictest	1213408	-21	ntpq	20:55:30	1
1185783	99	56	2,7	cyclictest	1201935	-21	ntpq	20:10:34	1
1185783	99	56	24,29	cyclictest	0	-21	swapper/1	23:07:38	1
1185783	99	56	17,32	cyclictest	1185864	-21	latency_hist	19:10:01	1
1185780	99	56	39,12	cyclictest	1185779	-21	cyclictest	23:31:40	0
1185783	99	55	3,5	cyclictest	1222342	-21	sshd	21:15:36	1
1185783	99	55	30,22	cyclictest	1377815	-21	ntpq	00:10:36	1
1185783	99	55	2,4	cyclictest	1275950	-21	ntpq	22:15:28	1
1185783	99	55	24,28	cyclictest	1203567	-21	unixbench_singl	20:15:37	1
1185783	99	55	1,13	cyclictest	1199331	-21	ntpq	20:00:28	1
1185780	99	55	48,5	cyclictest	1356938	-21	kworker/u4:15+events_unbound	00:00:42	0
1185780	99	55	47,6	cyclictest	1187008	-21	kworker/u4:12+events_unbound	19:36:32	0
1185783	99	54	2,14	cyclictest	1194871	-21	/usr/sbin/munin	19:45:42	1
1185783	99	54	19,31	cyclictest	0	-21	swapper/1	20:40:26	1
1185783	99	54	1,5	cyclictest	1194259	-21	ntpq	19:40:31	1
1185783	99	54	1,13	cyclictest	1235699	-21	ntpq	21:30:31	1
1185783	99	54	1,13	cyclictest	1190344	-21	ntpq	19:25:25	1
1185780	99	54	36,12	cyclictest	0	-21	swapper/0	23:45:14	0
1185783	99	53	28,22	cyclictest	1188340	-21	sendmail	19:20:01	1
1185783	99	53	2,12	cyclictest	1212122	-21	ntpq	20:50:30	1
1185783	99	53	1,6	cyclictest	1196736	-21	ntpq	19:50:29	1
1185783	99	53	1,12	cyclictest	1215659	-21	diskstats	21:05:22	1
1185780	99	53	46,5	cyclictest	1272951	-21	kworker/u4:12+events_unbound	22:13:00	0
1185780	99	53	45,5	cyclictest	1193887	-21	fschecks_count	19:40:18	0
1185780	99	53	43,6	cyclictest	0	-21	swapper/0	00:25:36	0
1185780	99	53	43,6	cyclictest	0	-21	swapper/0	00:25:36	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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