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 Tue Jun 30, 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
1346120	99	118	111,5	cyclictest	1491599	-21	kworker/u4:17+events_unbound	23:17:59	1
1346119	99	103	76,22	cyclictest	53	-21	kswapd0	00:15:16	0
1346119	99	88	37,35	cyclictest	1346116	-21	cyclictest	20:51:44	0
1346120	99	83	76,5	cyclictest	1478120	-21	kworker/u4:5+events_unbound	23:02:56	1
1346120	99	83	73,7	cyclictest	1349924	-21	kworker/u4:5+events_unbound	19:40:01	1
1346120	99	80	71,6	cyclictest	1364039	-21	kworker/u4:10+events_unbound	20:20:01	1
1346120	99	80	63,14	cyclictest	1542270	-21	sh	00:15:23	1
1346119	99	79	26,30	cyclictest	0	-21	swapper/0	00:20:23	0
1346120	99	77	69,6	cyclictest	1346047	-21	kworker/u4:8+events_unbound	20:05:01	1
1346119	99	77	68,6	cyclictest	1384028	-21	kworker/u4:2+events_unbound	21:35:00	0
1346119	99	77	42,32	cyclictest	1472799	-21	grep	22:55:41	0
1346119	99	74	41,30	cyclictest	1528602	-21	ssh	00:00:00	0
1346120	99	72	64,6	cyclictest	1397811	-21	kworker/u4:6+events_unbound	22:17:50	1
1346119	99	72	64,5	cyclictest	0	-21	swapper/0	22:30:37	0
1346120	99	71	65,4	cyclictest	1370458	-21	kworker/u4:13+events_unbound	21:12:36	1
1346120	99	71	63,6	cyclictest	1535847	-21	kworker/u4:1+events_unbound	00:23:05	1
1346119	99	71	40,29	cyclictest	1494199	-21	/usr/sbin/munin	23:20:23	0
1346119	99	71	23,44	cyclictest	0	-21	swapper/0	23:15:27	0
1346120	99	70	61,7	cyclictest	1526837	-21	kworker/u4:7+events_unbound	00:05:00	1
1346120	99	69	61,5	cyclictest	1438285	-21	kworker/u4:0+events_unbound	22:32:53	1
1346119	99	69	3,16	cyclictest	1356008	-21	ps	19:45:50	0
1346119	99	68	37,27	cyclictest	0	-21	swapper/0	21:10:24	0
1346119	99	67	32,32	cyclictest	1432490	-21	sendmail_mailqu	22:10:37	0
1346120	99	66	56,8	cyclictest	1402395	-21	kworker/u4:0+events_unbound	21:42:44	1
1346120	99	66	56,8	cyclictest	1402395	-21	kworker/u4:0+events_unbound	21:42:43	1
1346119	99	66	57,6	cyclictest	1397810	-21	kworker/u4:1+events_unbound	21:37:45	0
1346119	99	66	5,40	cyclictest	1534067	-21	ssh	00:05:29	0
1346119	99	66	4,20	cyclictest	1405223	-21	ssh	21:40:27	0
1346119	99	66	4,20	cyclictest	1405223	-21	ssh	21:40:27	0
1346119	99	66	36,28	cyclictest	1529316	-21	fschecks_time	00:00:19	0
1346119	99	66	36,28	cyclictest	1391849	-21	/usr/sbin/munin	21:25:36	0
1346119	99	66	2,14	cyclictest	1475866	-21	apt-get	23:00:11	0
1346119	99	66	15,45	cyclictest	1362874	-21	latency_hist	20:15:01	0
1346120	99	65	58,5	cyclictest	1473670	-21	kworker/u4:6+events_unbound	23:40:02	1
1346120	99	65	55,7	cyclictest	1553138	-21	kworker/u4:0+events_unbound	00:28:07	1
1346119	99	65	58,5	cyclictest	1346047	-21	kworker/u4:8+events_unbound	19:35:02	0
1346119	99	65	58,4	cyclictest	1367890	-21	kworker/u4:9+events_unbound	20:35:01	0
1346119	99	65	36,27	cyclictest	1551008	-21	acpi	00:25:11	0
1346119	99	65	31,31	cyclictest	1356961	-21	gltestperf	19:50:22	0
1346119	99	65	14,48	cyclictest	1466855	-21	latency_hist	22:50:02	0
1346119	99	65	1,13	cyclictest	1409569	-21	irqstats	21:45:23	0
1346119	99	64	35,27	cyclictest	1413900	-21	fschecks_time	21:50:19	0
1346119	99	64	29,32	cyclictest	1388655	-21	kworker/u4:9+rpciod	22:00:14	0
1346119	99	64	28,33	cyclictest	0	-21	swapper/0	20:45:15	0
1346119	99	64	22,38	cyclictest	1348649	-21	kworker/u4:3	19:20:00	0
1346120	99	63	55,6	cyclictest	1384031	-21	kworker/u4:6+events_unbound	21:17:39	1
1346119	99	63	4,13	cyclictest	1444921	-21	ssh	22:25:13	0
1346119	99	63	36,24	cyclictest	0	-21	swapper/0	22:05:37	0
1346119	99	63	33,27	cyclictest	1433757	-21	kworker/u4:1-rpciod	22:15:34	0
1346119	99	63	3,22	cyclictest	1503328	-21	ssh	23:30:33	0
1346119	99	63	3,14	cyclictest	1382644	-21	ntpq	21:15:29	0
1346120	99	62	54,6	cyclictest	1344848	-21	kworker/u4:0+events_unbound	19:55:01	1
1346120	99	62	54,5	cyclictest	1522341	-21	kworker/u4:1+events_unbound	23:55:01	1
1346120	99	62	48,10	cyclictest	0	-21	swapper/1	21:55:41	1
1346119	99	62	31,28	cyclictest	0	-21	swapper/0	22:20:17	0
1346119	99	62	29,29	cyclictest	0	-21	swapper/0	21:20:24	0
1346119	99	62	29,29	cyclictest	0	-21	swapper/0	20:20:37	0
1346119	99	62	2,8	cyclictest	1358492	-21	ntpq	19:55:31	0
1346119	99	62	28,31	cyclictest	0	-21	swapper/0	00:35:23	0
1346119	99	62	2,14	cyclictest	1520066	-21	apt-get	23:50:12	0
1346119	99	62	12,13	cyclictest	1537802	-21	apt-get	00:10:14	0
1346119	99	62	1,16	cyclictest	1350770	-21	ntpq	19:25:34	0
1346119	99	62	1,12	cyclictest	1511360	-21	aten_r7power_po	23:40:16	0
1346120	99	61	42,13	cyclictest	1444609	-21	modprobe	22:25:01	1
1346119	99	61	3,10	cyclictest	1373971	-21	ntpq	20:55:33	0
1346119	99	61	30,27	cyclictest	1360350	-21	latency_hist	20:05:02	0
1346119	99	61	29,29	cyclictest	1374989	-21	fschecks_time	21:00:19	0
1346119	99	61	26,32	cyclictest	0	-21	swapper/0	20:35:25	0
1346119	99	61	26,32	cyclictest	0	-21	swapper/0	20:25:21	0
1346120	99	60	53,5	cyclictest	1516252	-21	/usr/sbin/munin	23:45:22	1
1346120	99	60	51,7	cyclictest	1486464	-21	kworker/u4:11+events_unbound	23:23:00	1
1346119	99	60	3,7	cyclictest	1507667	-21	ntpq	23:35:35	0
1346119	99	60	3,19	cyclictest	1481166	-21	ntpq	23:05:33	0
1346119	99	60	27,29	cyclictest	0	-21	swapper/0	22:40:41	0
1346119	99	60	16,42	cyclictest	0	-21	swapper/0	22:35:12	0
1346120	99	59	13,32	cyclictest	1370458	-21	kworker/u4:13+nfsiod	20:55:07	1
1346119	99	59	4,7	cyclictest	1485424	-21	ntpq	23:10:26	0
1346119	99	59	3,9	cyclictest	1352655	-21	apt-get	19:35:12	0
1346119	99	59	2,8	cyclictest	1516211	-21	ssh	23:45:22	0
1346120	99	58	49,7	cyclictest	1456272	-21	kworker/u4:8+events_unbound	22:45:01	1
1346120	99	58	48,7	cyclictest	1422849	-21	fschecks_count	22:00:20	1
1346119	99	58	4,9	cyclictest	1363567	-21	ntpq	20:15:26	0
1346119	99	58	3,12	cyclictest	1346823	-21	ntpq	19:10:26	0
1346119	99	58	31,23	cyclictest	0	-21	swapper/0	21:55:25	0
1346119	99	58	24,31	cyclictest	1360740	-21	fschecks_time	20:05:19	0
1346119	99	58	24,30	cyclictest	0	-21	swapper/0	22:50:32	0
1346119	99	58	2,11	cyclictest	1375935	-21	apt-get	21:05:11	0
1346119	99	57	2,5	cyclictest	1369608	-21	df_inode	20:40:17	0
1346120	99	56	51,4	cyclictest	1346116	-21	cyclictest	22:37:53	1
1346120	99	56	49,5	cyclictest	1427373	-21	fschecks_count	22:05:21	1
1346120	99	56	48,6	cyclictest	1355020	-21	kworker/u4:12+events_unbound	19:47:23	1
1346120	99	56	47,7	cyclictest	1539682	-21	kworker/u4:8+events_unbound	00:39:59	1
1346120	99	56	45,9	cyclictest	1387175	-21	ntp_kernel_pll_	21:20:28	1
1346119	99	56	40,10	cyclictest	1500548	-21	ssh	23:27:31	0
1346119	99	56	3,8	cyclictest	1349458	-21	ntpq	19:20:37	0
1346119	99	56	24,29	cyclictest	0	-21	swapper/0	00:30:16	0
1346119	99	56	23,29	cyclictest	1354345	-21	gltestperf	19:40:21	0
1346120	99	55	48,5	cyclictest	1346044	-21	kworker/u4:1+events_unbound	19:57:25	1
1346120	99	55	44,8	cyclictest	1469840	-21	systemd	22:52:55	1
1346120	99	54	43,7	cyclictest	1411568	-21	kworker/u4:7-rpciod	22:10:33	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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