OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #e, slot #6

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.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:

System rackeslot6.osadl.org (updated Wed Apr 02, 2025 00:44:57)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3625686	99	146	139,5	cyclictest	3676891	-21	kworker/u8:0+events_unbound	22:25:02	0
3625686	99	116	106,7	cyclictest	3608112	-21	kworker/u8:0+events_unbound	19:10:02	0
3625691	99	114	101,10	cyclictest	3666582	-21	latency_hist	21:30:00	1
3625691	99	111	98,5	cyclictest	3697089	-21	kworker/u8:0+events_unbound	23:40:24	1
3625691	99	110	104,4	cyclictest	3632115	-21	kworker/u8:2+flush-179:0	19:35:24	1
3625691	99	109	96,11	cyclictest	3705783	-40	logrotate	00:00:01	1
3625686	99	106	98,7	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:20:26	0
3625686	99	106	98,7	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:20:25	0
3625686	99	106	94,4	cyclictest	3638476	-21	kworker/u8:0+flush-179:0	19:50:24	0
3625686	99	105	99,4	cyclictest	3635290	-21	kworker/u8:1+events_unbound	19:45:23	0
3625691	99	104	97,6	cyclictest	3682190	-21	kworker/u8:2+flush-179:0	22:40:25	1
3625686	99	104	88,6	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:00:15	0
3625686	99	104	88,6	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:00:15	0
3625691	99	102	90,6	cyclictest	3673506	-21	kworker/u8:3+flush-179:0	22:00:00	1
3625686	99	102	90,4	cyclictest	3651997	-21	kworker/u8:1+events_unbound	20:40:16	0
3625691	99	101	93,6	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:30:02	1
3625691	99	101	93,5	cyclictest	3608112	-21	kworker/u8:0+events_unbound	19:30:25	1
3625691	99	100	92,6	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:20:13	1
3625691	99	100	92,6	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:20:12	1
3625691	99	99	91,5	cyclictest	3643259	-21	kworker/u8:0+events_unbound	20:20:25	1
3625686	99	99	94,4	cyclictest	3682190	-21	kworker/u8:2+events_unbound	00:10:20	0
3625691	99	98	87,8	cyclictest	3625482	-21	latency_hist	19:10:01	1
3625686	99	97	91,4	cyclictest	3682190	-21	kworker/u8:2+flush-179:0	23:10:16	0
3625686	99	97	85,5	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:05:23	0
3625691	99	96	88,5	cyclictest	3697089	-21	kworker/u8:0+flush-179:0	23:30:11	1
3625686	99	96	85,8	cyclictest	3682190	-21	kworker/u8:2+events_unbound	22:35:12	0
3625686	99	96	85,8	cyclictest	3682190	-21	kworker/u8:2+events_unbound	22:35:12	0
3625686	99	95	91,3	cyclictest	3638476	-21	kworker/u8:0+events_unbound	19:55:25	0
3625691	99	92	85,5	cyclictest	3661271	-21	kworker/u8:0+flush-179:0	21:10:24	1
3625691	99	92	79,4	cyclictest	3638731	-21	kworker/u8:2+events_unbound	20:00:00	1
3625686	99	92	87,4	cyclictest	3692312	-21	kworker/u8:3+events_unbound	23:20:24	0
3625691	99	91	80,9	cyclictest	3702389	-21	gpgv	23:50:01	1
3625691	99	90	79,7	cyclictest	3676891	-21	kworker/u8:0+flush-179:0	22:10:17	1
3625686	99	90	0,88	cyclictest	1	-21	systemd	21:40:01	0
3625691	99	88	80,6	cyclictest	3692516	-21	/usr/sbin/munin	23:10:19	1
3625686	99	88	82,4	cyclictest	3697089	-21	kworker/u8:0+events_unbound	00:00:00	0
3625691	99	87	80,5	cyclictest	3635290	-21	kworker/u8:1+events_unbound	19:45:12	1
3625686	99	87	79,6	cyclictest	3661271	-21	kworker/u8:0+events_unbound	21:15:02	0
3625686	99	87	77,8	cyclictest	3697089	-21	kworker/u8:0+events_unbound	23:50:14	0
3625686	99	87	77,8	cyclictest	3697089	-21	kworker/u8:0+events_unbound	23:50:14	0
3625691	99	86	80,4	cyclictest	3638731	-21	kworker/u8:2+events_unbound	21:05:16	1
3625691	99	86	78,6	cyclictest	3668410	-21	kworker/u8:0+flush-179:0	21:40:00	1
3625691	99	86	78,5	cyclictest	3668410	-21	kworker/u8:0+events_unbound	21:50:09	1
3625691	99	85	77,5	cyclictest	3682190	-21	kworker/u8:2+flush-179:0	00:10:16	1
3625686	99	85	80,4	cyclictest	3710446	-21	kworker/u8:0+events_unbound	00:20:25	0
3625691	99	84	79,4	cyclictest	3712724	-21	kworker/u8:2+flush-179:0	00:35:23	1
3625691	99	84	78,4	cyclictest	3692312	-21	kworker/u8:3+events_unbound	23:20:17	1
3625691	99	84	76,6	cyclictest	3682190	-21	kworker/u8:2+flush-179:0	22:55:25	1
3625686	99	84	80,3	cyclictest	3608112	-21	kworker/u8:0+events_unbound	19:20:24	0
3625686	99	84	75,7	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:10:19	0
3625691	99	83	75,6	cyclictest	3694100	-21	kworker/u8:1+events_unbound	23:15:22	1
3625691	99	83	74,7	cyclictest	502	-21	rs:main		1
3625686	99	83	76,6	cyclictest	3692312	-21	kworker/u8:3+events_unbound	23:30:21	0
3625686	99	83	76,5	cyclictest	3638731	-21	kworker/u8:2+flush-179:0	20:35:24	0
3625686	99	83	76,5	cyclictest	3638731	-21	kworker/u8:2+flush-179:0	20:35:24	0
3625686	99	83	73,7	cyclictest	3671619	-21	latency_hist	21:45:01	0
3625691	99	82	69,10	cyclictest	3712994	-21	apt-get	00:30:13	1
3625691	99	81	75,5	cyclictest	3661271	-21	kworker/u8:0+events_unbound	21:15:24	1
3625686	99	81	75,4	cyclictest	3676891	-21	kworker/u8:0+events_unbound	22:10:12	0
3625686	99	81	70,9	cyclictest	3675305	-21	/usr/sbin/munin	22:00:22	0
3625691	99	80	72,5	cyclictest	3682190	-21	kworker/u8:2+events_unbound	00:00:23	1
3625686	99	80	72,5	cyclictest	3651997	-21	kworker/u8:1+events_unbound	20:45:14	0
3625686	99	80	71,6	cyclictest	3641650	-21	kworker/u8:3+events_unbound	20:00:14	0
3625691	99	79	74,4	cyclictest	3638731	-21	kworker/u8:2+events_unbound	20:10:23	1
3625691	99	79	72,5	cyclictest	3651997	-21	kworker/u8:1+flush-179:0	20:45:21	1
3625691	99	78	69,6	cyclictest	3673506	-21	kworker/u8:3+events_unbound	22:20:19	1
3625691	99	78	67,8	cyclictest	3627354	-21	latency_hist	19:15:01	1
3625691	99	78	67,4	cyclictest	3682190	-21	kworker/u8:2+events_unbound	22:30:20	1
3625686	99	78	67,3	cyclictest	3651997	-21	kworker/u8:1+events_unbound	20:50:30	0
3625691	99	77	72,3	cyclictest	3608112	-21	kworker/u8:0+events_unbound	19:25:24	1
3625691	99	77	70,6	cyclictest	3638476	-21	kworker/u8:0+events_unbound	19:55:01	1
3625686	99	77	74,2	cyclictest	3682190	-21	kworker/u8:2+events_unbound	00:00:25	0
3625691	99	76	70,4	cyclictest	3710446	-21	kworker/u8:0+flush-179:0	00:20:22	1
3625691	99	76	69,5	cyclictest	3676947	-21	kworker/u8:1+flush-179:0	22:15:20	1
3625691	99	76	63,5	cyclictest	3656562	-21	kworker/u8:3+events_unbound	20:55:21	1
3625686	99	76	65,8	cyclictest	3636911	-21	latency_hist	19:45:00	0
3625691	99	75	70,4	cyclictest	3638731	-21	kworker/u8:2+events_unbound	20:35:24	1
3625691	99	75	70,4	cyclictest	3638731	-21	kworker/u8:2+events_unbound	20:35:24	1
3625691	99	75	66,4	cyclictest	3635290	-21	kworker/u8:1+events_unbound	19:40:27	1
3625691	99	75	64,8	cyclictest	3645369	-21	apt-get	20:15:13	1
3625686	99	75	71,3	cyclictest	3680063	-21	kworker/u8:2+events_unbound	22:20:21	0
3625686	99	75	68,5	cyclictest	3682259	-21	kworker/u8:3+events_unbound	22:40:13	0
3625691	99	74	67,5	cyclictest	3638731	-21	kworker/u8:2+flush-179:0	20:35:00	1
3625686	99	74	68,4	cyclictest	3666358	-21	kworker/u8:2+flush-179:0	21:55:23	0
3625686	99	74	67,5	cyclictest	3712724	-21	kworker/u8:2+events_unbound	00:35:14	0
3625691	99	73	66,5	cyclictest	3704158	-21	kworker/u8:1+flush-179:0	00:15:24	1
3625691	99	73	66,5	cyclictest	3651997	-21	kworker/u8:1+flush-179:0	20:50:29	1
3625686	99	73	69,3	cyclictest	3630529	-21	kworker/u8:1+events_unbound	19:25:13	0
3625686	99	73	67,5	cyclictest	3688872	-21	kworker/u8:0+events_unbound	23:00:20	0
3625691	99	72	66,5	cyclictest	3697089	-21	kworker/u8:0+flush-179:0	23:35:21	1
3625686	99	72	66,5	cyclictest	3694100	-21	kworker/u8:1+flush-179:0	23:15:22	0
3625686	99	71	65,5	cyclictest	3656562	-21	kworker/u8:3+events_unbound	21:30:19	0
3625686	99	71	65,4	cyclictest	3697089	-21	kworker/u8:0+flush-179:0	23:35:16	0
3625691	99	69	63,5	cyclictest	3666358	-21	kworker/u8:2+events_unbound	22:00:25	1
3625686	99	69	62,5	cyclictest	3643259	-21	kworker/u8:0+events_unbound	20:15:13	0
3625691	99	68	59,4	cyclictest	3638731	-21	kworker/u8:2+events_unbound	20:45:00	1
3625691	99	67	60,6	cyclictest	3697089	-21	kworker/u8:0+events_unbound	23:50:02	1
3625691	99	67	60,6	cyclictest	3697089	-21	kworker/u8:0+events_unbound	23:50:01	1
3625691	99	67	58,7	cyclictest	3692022	-21	latency_hist	23:05:01	1
3625686	99	67	59,6	cyclictest	3608112	-21	kworker/u8:0+events_unbound	19:35:13	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2020-10-04 - 12:21