OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #3

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.
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 rackcslot3s.osadl.org (updated Tue Mar 31, 2026 12:43:56)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
6663	2	324	317,4	sleep3	0	-21	swapper/3	07:07:14	3
6861	2	318	311,5	sleep0	0	-21	swapper/0	07:09:48	0
6711	2	318	312,4	sleep1	0	-21	swapper/1	07:07:52	1
7144	99	317	0,316	cyclictest	1049	-21	kworker/u16:0+efi_rts_wq	12:00:13	3
6858	2	317	307,8	sleep2	0	-21	swapper/2	07:09:46	2
7144	99	313	0,312	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	11:20:12	3
7141	99	313	0,312	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:57:18	0
7141	99	313	0,312	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:45:14	0
7141	99	312	0,311	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:10:11	0
7144	99	311	0,310	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	09:40:14	3
7141	99	310	0,309	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	10:27:34	0
7141	99	309	0,308	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	10:35:11	0
7141	99	309	0,308	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	11:45:12	0
7141	99	307	0,306	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:20:12	0
7141	99	307	0,306	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	10:07:32	0
7143	99	304	0,303	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	10:00:14	2
7141	99	304	0,303	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	07:40:13	0
7144	99	302	0,301	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:30:11	3
7144	99	301	0,300	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:15:13	3
7141	99	301	0,300	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:25:13	0
7143	99	299	0,298	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	11:05:13	2
7143	99	299	0,298	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:55:12	2
7144	99	297	0,296	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	11:10:12	3
7142	99	296	0,295	cyclictest	8609	-21	kworker/u16:2+efi_rts_wq	10:45:13	1
7142	99	296	0,295	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	08:00:12	1
7141	99	294	0,293	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:37:26	0
7144	99	293	0,292	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:17:10	3
7141	99	289	0,288	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	07:15:14	0
7141	99	289	0,288	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	09:40:14	0
7141	99	289	0,288	cyclictest	1049	-21	kworker/u16:0+efi_rts_wq	11:42:50	0
7144	99	288	0,287	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	08:50:10	3
7143	99	288	0,287	cyclictest	8609	-21	kworker/u16:2+efi_rts_wq	10:55:13	2
7143	99	287	0,286	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:37:14	2
7143	99	287	0,286	cyclictest	1049	-21	kworker/u16:0+efi_rts_wq	11:52:52	2
7141	99	287	0,284	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:35:12	0
7144	99	286	0,285	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	11:40:12	3
7142	99	286	0,285	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:35:11	1
7141	99	286	0,285	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	11:05:13	0
7144	99	284	0,283	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	07:20:12	3
7144	99	283	0,282	cyclictest	8609	-21	kworker/u16:2+efi_rts_wq	11:05:13	3
7144	99	283	0,281	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	09:20:12	3
7142	99	283	0,282	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	08:32:13	1
7141	99	282	0,281	cyclictest	8609	-21	kworker/u16:2+efi_rts_wq	11:02:41	0
7141	99	282	0,281	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	10:47:38	0
7141	99	282	0,281	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	07:10:12	0
7142	99	281	0,280	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	10:35:11	1
7141	99	281	0,280	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	07:50:14	0
7144	99	279	0,278	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	10:10:12	3
7142	99	279	0,278	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	08:12:10	1
7143	99	278	0,277	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	11:20:12	2
7143	99	276	0,275	cyclictest	8609	-21	kworker/u16:2+efi_rts_wq	11:25:13	2
7143	99	274	0,273	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	07:16:58	2
7144	99	271	0,270	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:50:13	3
7144	99	271	0,270	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:22:57	3
7143	99	270	0,269	cyclictest	1049	-21	kworker/u16:0+efi_rts_wq	12:17:57	2
7141	99	270	0,267	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	07:55:13	0
7143	99	269	0,268	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	09:42:27	2
7143	99	269	0,268	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	07:35:15	2
7144	99	268	0,267	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	10:52:39	3
7144	99	268	0,267	cyclictest	1049	-21	kworker/u16:0+efi_rts_wq	12:25:12	3
7143	99	268	0,265	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:45:14	2
7142	99	268	0,267	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:10:11	1
7144	99	266	0,265	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:05:12	3
7144	99	265	0,263	cyclictest	8609	-21	kworker/u16:2+efi_rts_wq	10:55:14	3
7141	99	265	0,264	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:30:11	0
7144	99	262	0,261	cyclictest	1049	-21	kworker/u16:0+efi_rts_wq	11:50:12	3
7143	99	261	0,260	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:52:29	2
7141	99	261	0,259	cyclictest	11390	-21	kworker/u16:0+efi_rts_wq	10:42:37	0
7144	99	260	0,259	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:32:58	3
7144	99	260	0,259	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:32:58	3
7142	99	260	0,259	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:07:08	1
7142	99	260	0,259	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	11:47:51	1
7144	99	259	0,257	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	10:40:14	3
7144	99	258	0,257	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:05:13	3
7144	99	258	0,257	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	10:17:33	3
7143	99	257	0,256	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	11:17:44	2
7142	99	257	0,256	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:15:14	1
7142	99	257	0,256	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	07:25:13	1
7142	99	255	0,254	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	10:30:13	1
7141	99	254	0,253	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	08:20:13	0
7141	99	253	0,252	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:07:20	0
7143	99	251	0,250	cyclictest	4631	-21	kworker/u16:1+efi_rts_wq	11:00:12	2
7144	99	246	0,245	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	10:25:12	3
7143	99	242	0,241	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	09:17:23	2
7142	99	241	0,240	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	11:40:12	1
7141	99	241	0,240	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:30:11	0
7141	99	241	0,240	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:30:11	0
7141	99	239	0,238	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:50:13	0
7142	99	238	0,237	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	08:40:13	1
7144	99	236	0,235	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	07:35:14	3
7143	99	236	0,235	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	10:32:35	2
7141	99	236	0,235	cyclictest	1049	-21	kworker/u16:0+efi_rts_wq	11:50:12	0
7143	99	235	0,234	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	07:20:11	2
7142	99	235	0,234	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	08:50:10	1
7144	99	228	0,227	cyclictest	1049	-21	kworker/u16:0+efi_rts_wq	11:35:15	3
7143	99	228	0,227	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	09:02:19	2
7142	99	228	0,227	cyclictest	23163	-21	kworker/u16:0+efi_rts_wq	08:27:12	1
7144	99	227	0,226	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	10:05:14	3
7143	99	226	0,225	cyclictest	4462	-21	kworker/u16:3+efi_rts_wq	08:30:14	2
7141	99	226	0,225	cyclictest	3906	-21	kworker/u16:3+efi_rts_wq	12:05:12	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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