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 Sun Aug 02, 2026 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1357220	99	104	96,6	cyclictest	1439519	-21	kworker/u4:5+events_unbound	10:09:24	1
1357220	99	96	85,6	cyclictest	1359716	-21	kworker/u4:2+events_unbound	07:54:00	1
1357218	99	89	39,30	cyclictest	1482526	-21	mailstats	10:55:40	0
1357220	99	83	75,6	cyclictest	1488304	-21	kworker/u4:10+events_unbound	11:29:37	1
1357220	99	81	73,6	cyclictest	1381536	-21	kworker/u4:10+events_unbound	08:59:08	1
1357218	99	81	45,27	cyclictest	0	-21	swapper/0	10:15:38	0
1357220	99	80	66,5	cyclictest	1367383	-21	kworker/u4:9+events_unbound	08:14:01	1
1357218	99	79	34,40	cyclictest	0	-21	swapper/0	09:40:40	0
1357218	99	75	25,44	cyclictest	0	-21	swapper/0	12:00:48	0
1357220	99	74	67,5	cyclictest	1354705	-21	kworker/u4:8+events_unbound	07:38:57	1
1357218	99	73	63,7	cyclictest	1532634	-21	kworker/u4:0+events_unbound	11:59:44	0
1357218	99	73	61,5	cyclictest	1457437	-21	kworker/u4:0+events_unbound	10:29:26	0
1357218	99	72	27,30	cyclictest	0	-21	swapper/0	09:55:44	0
1357218	99	69	6,26	cyclictest	1508892	-21	ssh	11:25:27	0
1357218	99	68	35,30	cyclictest	1460512	-21	timerwakeupswit	10:30:39	0
1357218	99	68	35,30	cyclictest	1460512	-21	timerwakeupswit	10:30:39	0
1357218	99	68	31,33	cyclictest	0	-21	swapper/0	11:45:34	0
1357218	99	68	24,39	cyclictest	0	-21	swapper/0	08:15:01	0
1357218	99	67	39,25	cyclictest	1433187	-21	df_abs	10:00:18	0
1357218	99	67	21,42	cyclictest	1383001	-21	apt-get	08:50:12	0
1357218	99	66	24,36	cyclictest	1525681	-21	date	11:45:01	0
1357218	99	66	2,23	cyclictest	0	-21	swapper/0	11:50:42	0
1357218	99	65	31,31	cyclictest	1548639	-21	kernelversion	12:10:23	0
1357218	99	65	24,35	cyclictest	0	-21	swapper/0	09:10:01	0
1357218	99	65	20,3	cyclictest	0	-21	swapper/0	12:30:30	0
1357218	99	64	54,7	cyclictest	0	-21	swapper/0	09:10:41	0
1357218	99	64	49,9	cyclictest	1486328	-21	cut	11:00:21	0
1357218	99	64	33,28	cyclictest	0	-21	swapper/0	09:20:28	0
1357218	99	64	32,30	cyclictest	1553602	-21	switchtime	12:15:40	0
1357218	99	64	32,29	cyclictest	1557180	-21	aten_r7power_vo	12:20:18	0
1357218	99	64	31,31	cyclictest	1499409	-21	aten_r7power_en	11:15:18	0
1357218	99	64	29,31	cyclictest	0	-21	swapper/0	09:35:30	0
1357218	99	64	19,9	cyclictest	1407132	-21	ps	09:30:38	0
1357220	99	63	57,5	cyclictest	1342878	-21	kworker/u4:10+events_unbound	08:29:04	1
1357218	99	63	4,15	cyclictest	1357215	-21	cyclictest	07:10:01	0
1357218	99	63	27,34	cyclictest	1495396	-21	if_eth0	11:10:22	0
1357218	99	63	26,34	cyclictest	1451873	-21	unixbench_singl	10:20:44	0
1357218	99	63	26,34	cyclictest	1419843	-21	cpu	09:45:18	0
1357218	99	63	26,34	cyclictest	1419843	-21	cpu	09:45:17	0
1357218	99	63	22,38	cyclictest	1385096	-21	switchtime	08:55:42	0
1357218	99	62	4,22	cyclictest	1494161	-21	ssh	11:09:25	0
1357218	99	62	3,12	cyclictest	1477860	-21	ssh	10:50:31	0
1357218	99	62	28,31	cyclictest	0	-21	swapper/0	10:05:16	0
1357218	99	62	28,31	cyclictest	0	-21	swapper/0	09:50:35	0
1357218	99	62	27,32	cyclictest	0	-21	swapper/0	07:35:20	0
1357218	99	62	26,33	cyclictest	0	-21	swapper/0	07:55:17	0
1357218	99	62	17,8	cyclictest	1512554	-21	/usr/sbin/munin	11:30:11	0
1357218	99	62	17,8	cyclictest	1512554	-21	/usr/sbin/munin	11:30:10	0
1357218	99	62	17,41	cyclictest	0	-21	swapper/0	09:27:04	0
1357218	99	62	17,41	cyclictest	0	-21	swapper/0	09:27:03	0
1357218	99	62	15,7	cyclictest	1357607	-21	fschecks_count	07:10:19	0
1357218	99	62	1,21	cyclictest	1473324	-21	ntpq	10:45:27	0
1357218	99	62	1,10	cyclictest	1381957	-21	/usr/sbin/munin	08:45:15	0
1357218	99	61	4,16	cyclictest	1363573	-21	modprobe	07:34:59	0
1357218	99	61	32,26	cyclictest	1507663	-21	ssh	11:24:43	0
1357218	99	61	28,29	cyclictest	0	-21	swapper/0	07:20:01	0
1357218	99	61	27,31	cyclictest	0	-21	swapper/0	11:35:26	0
1357218	99	61	27,31	cyclictest	0	-21	swapper/0	11:35:25	0
1357218	99	61	25,33	cyclictest	0	-21	swapper/0	10:40:29	0
1357218	99	61	17,5	cyclictest	1442172	-21	/usr/sbin/munin	10:10:19	0
1357220	99	60	53,5	cyclictest	1342879	-21	kworker/u4:11+events_unbound	08:20:03	1
1357218	99	60	5,23	cyclictest	1464499	-21	ntpq	10:35:27	0
1357218	99	60	28,29	cyclictest	0	-21	swapper/0	09:15:35	0
1357218	99	60	27,30	cyclictest	0	-21	swapper/0	08:00:19	0
1357218	99	60	25,32	cyclictest	0	-21	swapper/0	12:05:21	0
1357218	99	60	21,35	cyclictest	0	-21	swapper/0	08:20:18	0
1357218	99	59	26,30	cyclictest	0	-21	swapper/0	08:15:14	0
1357218	99	59	2,16	cyclictest	1368180	-21	ntpq	07:50:30	0
1357218	99	59	17,6	cyclictest	1361226	-21	aten2__	07:25:15	0
1357218	99	59	1,22	cyclictest	1570606	-21	fschecks_count	12:35:19	0
1357220	99	58	48,7	cyclictest	1416958	-21	kworker/u4:9-rpciod	09:50:23	1
1357218	99	58	24,31	cyclictest	1385881	-21	fschecks_time	09:00:19	0
1357218	99	58	21,4	cyclictest	0	-21	swapper/0	08:35:16	0
1357220	99	57	49,6	cyclictest	1548380	-21	fschecks_count	12:10:21	1
1357220	99	57	48,7	cyclictest	1420600	-21	/usr/sbin/munin	09:45:39	1
1357220	99	57	48,7	cyclictest	1420600	-21	/usr/sbin/munin	09:45:38	1
1357220	99	57	47,8	cyclictest	1481312	-21	latency_hist	10:55:02	1
1357218	99	57	25,29	cyclictest	0	-21	swapper/0	12:25:18	0
1357218	99	57	23,31	cyclictest	0	-21	swapper/0	08:30:17	0
1357218	99	57	20,5	cyclictest	1371891	-21	/usr/sbin/munin	08:05:29	0
1357218	99	57	17,6	cyclictest	1377480	-21	ls	08:25:41	0
1357220	99	56	49,5	cyclictest	1496684	-21	kworker/u4:6+events_unbound	11:19:35	1
1357220	99	56	49,5	cyclictest	1366114	-21	kworker/u4:1+events_unbound	08:17:02	1
1357220	99	55	48,5	cyclictest	1452944	-21	kworker/u4:10+events_unbound	10:39:26	1
1357220	99	55	46,5	cyclictest	1411546	-21	ntpq	09:35:35	1
1357218	99	55	23,4	cyclictest	1359716	-21	kworker/u4:2-xprtiod	07:20:34	0
1357220	99	54	45,7	cyclictest	1447044	-21	/usr/sbin/munin	10:15:38	1
1357218	99	54	21,6	cyclictest	0	-21	swapper/0	07:45:36	0
1357218	99	54	18,5	cyclictest	0	-21	swapper/0	07:40:21	0
1357220	99	53	46,6	cyclictest	1497344	-21	kworker/u4:9+events_unbound	11:23:47	1
1357220	99	53	41,4	cyclictest	53	-21	kswapd0	11:40:38	1
1357218	99	53	19,31	cyclictest	1372490	-21	kworker/u4:4-rpciod	08:45:02	0
1357220	99	52	44,6	cyclictest	1489792	-21	sd-accept	11:04:33	1
1357220	99	52	44,6	cyclictest	0	-21	swapper/1	11:45:13	1
1357220	99	52	44,5	cyclictest	1562798	-21	sh	12:25:44	1
1357220	99	51	45,4	cyclictest	1381535	-21	kworker/u4:8+events_unbound	09:20:03	1
1357220	99	51	44,5	cyclictest	1367384	-21	kworker/u4:14+events_unbound	07:55:46	1
1357220	99	51	41,6	cyclictest	0	-21	swapper/1	09:30:24	1
1357220	99	50	44,4	cyclictest	0	-21	swapper/1	12:30:04	1
1357220	99	50	43,5	cyclictest	1408509	-21	kworker/u4:6+events_unbound	09:40:06	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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