OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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 rackeslot4s.osadl.org (updated Mon Mar 24, 2025 12:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
23519	99	52	47,3	cyclictest	222320	-21	kworker/u8:1+flush-259:0	10:50:10	3
23515	99	42	38,3	cyclictest	261091	-21	kworker/u8:4+events_unbound	12:10:10	2
23519	99	41	37,3	cyclictest	288872	-21	kworker/u8:0+flush-259:0	12:15:16	3
23515	99	40	36,3	cyclictest	261091	-21	kworker/u8:4+flush-259:0	11:50:11	2
23507	99	39	32,5	cyclictest	61182	-21	/usr/sbin/munin	07:50:10	1
23519	99	38	35,2	cyclictest	227705	-21	kworker/u8:2+flush-259:0	10:55:20	3
23519	99	38	35,2	cyclictest	119252	-21	kworker/u8:0+flush-259:0	09:05:24	3
23519	99	38	33,3	cyclictest	227705	-21	kworker/u8:2+flush-259:0	11:05:00	3
23519	99	38	33,3	cyclictest	167786	-21	kworker/u8:0+flush-259:0	09:55:00	3
23507	99	38	35,2	cyclictest	23506	-21	kworker/u8:1+events_unbound	07:20:15	1
23519	99	37	30,5	cyclictest	210278	-21	ntpq	10:30:17	3
23519	99	36	33,2	cyclictest	60277	-21	kworker/u8:2+flush-259:0	07:50:14	3
23519	99	36	33,2	cyclictest	227705	-21	kworker/u8:2+events_unbound	11:15:14	3
23519	99	36	33,2	cyclictest	140540	-21	kworker/u8:1+events_unbound	09:35:21	3
23519	99	36	33,2	cyclictest	112935	-21	kworker/u8:3+events_unbound	08:45:15	3
23519	99	36	33,2	cyclictest	112935	-21	kworker/u8:3+events_unbound	08:45:15	3
23519	99	36	32,2	cyclictest	60277	-21	kworker/u8:2+flush-259:0	08:40:17	3
23515	99	36	32,3	cyclictest	184063	-21	kworker/u8:1+events_unbound	10:20:26	2
23519	99	35	32,2	cyclictest	60277	-21	kworker/u8:2+events_unbound	08:20:21	3
23519	99	35	32,2	cyclictest	260886	-21	kworker/u8:2+events_unbound	11:50:00	3
23519	99	35	32,2	cyclictest	156553	-21	kworker/u8:3+flush-259:0	10:00:16	3
23515	99	35	31,3	cyclictest	34113	-21	kworker/u8:0+events_unbound	07:30:01	2
23515	99	35	31,3	cyclictest	23506	-21	kworker/u8:1+flush-259:0	07:20:00	2
23505	99	35	30,3	cyclictest	1	-21	systemd	12:30:01	0
23515	99	34	31,2	cyclictest	34113	-21	kworker/u8:0+flush-259:0	07:40:19	2
23515	99	34	30,3	cyclictest	167786	-21	kworker/u8:0+events_unbound	09:40:17	2
23519	99	33	30,2	cyclictest	34113	-21	kworker/u8:0+flush-259:0	07:40:18	3
23507	99	33	29,3	cyclictest	119252	-21	kworker/u8:0+flush-259:0	09:05:16	1
23505	99	33	30,2	cyclictest	113415	-21	kworker/u8:4+flush-259:0	09:35:00	0
23519	99	32	28,3	cyclictest	113415	-21	kworker/u8:4+flush-259:0	09:28:48	3
23515	99	32	29,2	cyclictest	261091	-21	kworker/u8:4+flush-259:0	12:30:12	2
23515	99	32	29,2	cyclictest	124447	-21	kworker/u8:2+flush-259:0	09:30:18	2
23505	99	32	25,5	cyclictest	71334	-21	latency_hist	08:00:00	0
23505	99	32	21,9	cyclictest	222534	-21	apt-get	10:50:07	0
23519	99	31	28,2	cyclictest	261091	-21	kworker/u8:4+flush-259:0	11:55:13	3
23519	99	31	27,3	cyclictest	60277	-21	kworker/u8:2+flush-259:0	08:10:00	3
23515	99	31	27,3	cyclictest	167786	-21	kworker/u8:0+events_unbound	10:10:17	2
23515	99	31	27,3	cyclictest	156510	-21	apt-get	09:28:41	2
23519	99	30	27,2	cyclictest	112935	-21	kworker/u8:3+events_unbound	08:50:23	3
23515	99	30	27,2	cyclictest	34113	-21	kworker/u8:0+events_unbound	07:35:26	2
23515	99	30	27,2	cyclictest	156553	-21	kworker/u8:3+flush-259:0	09:50:21	2
23505	99	30	22,5	cyclictest	156661	-21	apt-get	09:30:00	0
23519	99	29	26,2	cyclictest	261091	-21	kworker/u8:4+events_unbound	11:40:17	3
23519	99	29	26,2	cyclictest	227705	-21	kworker/u8:2+events_unbound	11:10:10	3
23515	99	29	26,2	cyclictest	261091	-21	kworker/u8:4+events_unbound	12:00:19	2
23515	99	29	26,2	cyclictest	119252	-21	kworker/u8:0+flush-259:0	09:10:21	2
23505	99	29	22,5	cyclictest	3000860	-21	systemd-journal	09:45:00	0
23515	99	28	25,2	cyclictest	34113	-21	kworker/u8:0+events_unbound	08:00:14	2
23515	99	28	25,2	cyclictest	288873	-21	kworker/u8:3+flush-259:0	12:20:16	2
23515	99	28	24,3	cyclictest	60277	-21	kworker/u8:2+flush-259:0	08:40:21	2
23507	99	28	21,5	cyclictest	304981	-21	latency_hist	12:30:01	1
23507	99	28	20,5	cyclictest	134651	-21	latency_hist	09:05:01	1
23519	99	27	24,2	cyclictest	261091	-21	kworker/u8:4+events_unbound	12:10:12	3
23519	99	27	24,2	cyclictest	156553	-21	kworker/u8:3+events_unbound	09:55:16	3
23519	99	27	24,2	cyclictest	140540	-21	kworker/u8:1+events_unbound	09:30:10	3
23519	99	27	23,3	cyclictest	222320	-21	kworker/u8:1+events_unbound	11:50:49	3
23515	99	27	24,2	cyclictest	112935	-21	kworker/u8:3+events_unbound	08:50:17	2
23515	99	27	23,3	cyclictest	261091	-21	kworker/u8:4+events_unbound	11:40:18	2
23515	99	27	23,3	cyclictest	156553	-21	kworker/u8:3+events_unbound	09:55:14	2
23519	99	26	23,2	cyclictest	23506	-21	kworker/u8:1+flush-259:0	07:35:21	3
23519	99	26	21,2	cyclictest	2420	-21	kworker/u8:4+events_unbound	07:30:19	3
23515	99	26	23,2	cyclictest	227705	-21	kworker/u8:2+events_unbound	11:15:12	2
23515	99	26	23,2	cyclictest	113415	-21	kworker/u8:4+flush-259:0	08:45:15	2
23515	99	26	23,2	cyclictest	113415	-21	kworker/u8:4+flush-259:0	08:45:14	2
23515	99	26	23,2	cyclictest	113415	-21	kworker/u8:4+events_unbound	09:20:22	2
23515	99	26	22,3	cyclictest	288872	-21	kworker/u8:0+events_unbound	12:15:22	2
23515	99	26	22,3	cyclictest	184099	-21	apt-get	10:00:13	2
23507	99	26	23,2	cyclictest	60277	-21	kworker/u8:2+flush-259:0	07:55:15	1
23507	99	26	21,4	cyclictest	266343	-21	/usr/sbin/munin	11:40:14	1
23507	99	26	20,4	cyclictest	254593	-21	latency_hist	11:25:01	1
23515	99	25	22,2	cyclictest	34113	-21	kworker/u8:0+events_unbound	08:10:13	2
23515	99	25	22,2	cyclictest	282774	-21	kworker/u8:2+flush-259:0	12:00:00	2
23507	99	25	21,3	cyclictest	261091	-21	kworker/u8:4+flush-259:0	12:00:18	1
23507	99	25	21,3	cyclictest	156553	-21	kworker/u8:3+flush-259:0	09:50:11	1
23507	99	25	19,4	cyclictest	3000860	-21	systemd-journal	10:04:13	1
23507	99	25	19,4	cyclictest	261091	-21	kworker/u8:4+flush-259:0	11:35:17	1
23505	99	25	18,5	cyclictest	3000860	-21	systemd-journal	09:55:00	0
23505	99	25	18,5	cyclictest	292999	-21	ntpq	12:10:17	0
23519	99	24	21,2	cyclictest	227705	-21	kworker/u8:2+events_unbound	11:20:28	3
23519	99	24	19,4	cyclictest	3000860	-21	systemd-journal	07:25:00	3
23519	99	24	17,5	cyclictest	66601	-21	diskstats	07:55:16	3
23515	99	24	21,2	cyclictest	83648	-21	kworker/u8:1+flush-259:0	08:25:14	2
23515	99	24	21,2	cyclictest	261091	-21	kworker/u8:4+flush-259:0	11:35:23	2
23515	99	24	20,3	cyclictest	205523	-21	kworker/u8:3+events_unbound	10:45:48	2
23507	99	24	19,4	cyclictest	227705	-21	kworker/u8:2+flush-259:0	11:10:10	1
23507	99	24	18,4	cyclictest	271803	-21	cat	11:45:01	1
23507	99	24	18,4	cyclictest	119252	-21	kworker/u8:0+flush-259:0	09:25:00	1
23507	99	24	16,5	cyclictest	237430	-21	ntpq	11:00:22	1
23505	99	24	20,3	cyclictest	4183678	-21	kworker/u8:2+flush-259:0	07:10:17	0
23505	99	24	18,4	cyclictest	3000063	-21	rs:main		0
23519	99	23	20,2	cyclictest	83648	-21	kworker/u8:1+events_unbound	08:35:18	3
23519	99	23	20,2	cyclictest	167786	-21	kworker/u8:0+flush-259:0	10:10:13	3
23519	99	23	19,2	cyclictest	60277	-21	kworker/u8:2+events_unbound	08:00:21	3
23515	99	23	20,2	cyclictest	227705	-21	kworker/u8:2+flush-259:0	11:20:25	2
23515	99	23	20,2	cyclictest	184063	-21	kworker/u8:1+events_unbound	10:30:41	2
23515	99	23	20,2	cyclictest	140540	-21	kworker/u8:1+flush-259:0	09:35:25	2
23515	99	23	19,3	cyclictest	255299	-21	kworker/u8:3+flush-259:0	11:30:16	2
23507	99	23	19,3	cyclictest	288873	-21	kworker/u8:3+flush-259:0	12:15:00	1
23507	99	23	19,3	cyclictest	156553	-21	kworker/u8:3+flush-259:0	09:55:26	1
23507	99	23	18,3	cyclictest	211374	-21	kworker/u8:4+flush-259:0	10:35:15	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2021-09-01 - 00:34