OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #b, 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, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 50 highest latencies:

System rackbslot2.osadl.org (updated Sat Jun 29, 2024 12:44:37)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
943282	2	233	203,19	sleep0	0	-21	swapper/0	07:07:34	0
943372	2	230	200,19	sleep2	0	-21	swapper/2	07:08:45	2
943178	2	229	199,19	sleep3	0	-21	swapper/3	07:06:14	3
943356	2	224	195,19	sleep1	0	-21	swapper/1	07:08:32	1
943648	99	73	68,3	cyclictest	1119445	-21	latency_hist	12:00:01	1
943648	99	53	52,0	cyclictest	0	-21	swapper/1	11:05:00	1
943650	99	49	46,2	cyclictest	992286	-21	kworker/u8:0+events_unbound	09:20:40	2
943655	99	44	40,3	cyclictest	1116224	-21	gpgv	11:55:00	3
943655	99	43	39,3	cyclictest	1053642	-21	apt-get	10:10:12	3
943650	99	43	40,2	cyclictest	955796	-21	kworker/u8:3+events_unbound	07:45:35	2
943650	99	42	39,2	cyclictest	1100553	-21	kworker/u8:1+events_unbound	11:30:34	2
943644	99	42	28,13	cyclictest	89	-1	kworker/0:1H+kblockd	11:53:38	0
943650	99	41	38,2	cyclictest	931308	-21	kworker/u8:0+events_unbound	07:50:05	2
943650	99	41	37,2	cyclictest	1123138	-21	kworker/u8:4+events_unbound	12:25:04	2
943644	99	41	36,3	cyclictest	1063096	-21	apt-get	10:25:16	0
943650	99	40	38,2	cyclictest	998229	-21	kworker/u8:2+events_unbound	09:17:01	2
943650	99	40	37,2	cyclictest	992286	-21	kworker/u8:0+events_unbound	09:25:13	2
943648	99	40	34,4	cyclictest	986638	-21	ntpq	08:20:02	1
943655	99	39	28,0	cyclictest	2956953	-21	snmpd	08:21:03	3
943650	99	39	37,2	cyclictest	1076953	-21	kworker/u8:1+events_unbound	11:00:08	2
943650	99	39	37,2	cyclictest	1076953	-21	kworker/u8:1+events_unbound	11:00:08	2
943650	99	39	37,2	cyclictest	1067450	-21	kworker/u8:3+events_unbound	10:35:28	2
943650	99	39	37,2	cyclictest	1042909	-21	kworker/u8:1+events_unbound	10:10:14	2
943650	99	39	34,2	cyclictest	992286	-21	kworker/u8:0+events_unbound	09:00:03	2
943655	99	38	32,5	cyclictest	961949	-21	kworker/3:0+pm	09:45:10	3
943650	99	38	37,1	cyclictest	989325	-21	kworker/2:3+pm	09:45:27	2
943650	99	38	37,1	cyclictest	989325	-21	kworker/2:3+pm	09:09:10	2
943650	99	38	37,1	cyclictest	922368	-21	kworker/2:3+pm	07:10:03	2
943650	99	38	37,1	cyclictest	1048474	-21	kworker/2:1+pm	10:54:35	2
943650	99	38	36,1	cyclictest	1125232	-21	kworker/2:1+pm	12:15:30	2
943648	99	38	35,2	cyclictest	955796	-21	kworker/u8:3+flush-179:0	07:50:31	1
943648	99	38	34,3	cyclictest	1007561	-21	kworker/u8:4+flush-179:0	09:40:09	1
964146	2	37	0,1	sleep0	964147	-21	ntpq	07:40:27	0
964146	2	37	0,1	sleep0	964147	-21	ntpq	07:40:27	0
943650	99	37	36,1	cyclictest	989325	-21	kworker/2:3+pm	09:37:30	2
943650	99	37	36,1	cyclictest	1079650	-21	kworker/2:2+pm	12:00:33	2
943650	99	37	36,1	cyclictest	1048474	-21	kworker/2:1+pm	10:25:30	2
943650	99	37	36,1	cyclictest	1048474	-21	kworker/2:1+pm	10:05:32	2
943650	99	37	35,1	cyclictest	989325	-21	kworker/2:3+pm	10:00:12	2
943650	99	37	35,1	cyclictest	989325	-21	kworker/2:3+pm	09:55:11	2
943650	99	37	35,1	cyclictest	989325	-21	kworker/2:3+pm	09:50:20	2
943650	99	37	35,1	cyclictest	967716	-21	kworker/2:2+pm	08:10:00	2
943650	99	37	34,2	cyclictest	940390	-21	kworker/u8:2+events_unbound	07:17:02	2
943648	99	37	34,2	cyclictest	963528	-1	kworker/1:2H+kblockd	11:22:56	1
943648	99	37	34,2	cyclictest	963528	-1	kworker/1:2H+kblockd	07:14:35	1
943648	99	37	34,2	cyclictest	1100553	-21	kworker/u8:1+flush-179:0	11:30:33	1
943644	99	37	34,2	cyclictest	89	-1	kworker/0:1H+kblockd	12:37:36	0
943644	99	37	34,2	cyclictest	89	-1	kworker/0:1H+kblockd	10:35:24	0
943644	99	37	34,2	cyclictest	89	-1	kworker/0:1H+kblockd	09:07:38	0
943644	99	37	34,2	cyclictest	89	-1	kworker/0:1H+kblockd	08:55:50	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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