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 Sun Apr 05, 2026 00:43:53)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3096	2	331	324,5	sleep3	0	-21	swapper/3	19:07:09	3
3282	2	327	320,5	sleep0	0	-21	swapper/0	19:09:34	0
3259	2	319	312,5	sleep2	0	-21	swapper/2	19:09:17	2
3005	2	317	310,5	sleep1	0	-21	swapper/1	19:05:59	1
3584	99	314	0,313	cyclictest	11644	-21	kworker/u16:1+efi_rts_wq	00:15:44	1
3585	99	312	0,311	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	21:50:17	2
3586	99	311	0,310	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:30:23	3
3583	99	308	0,307	cyclictest	1673	-21	kworker/u16:4+efi_rts_wq	23:05:31	0
3584	99	307	0,306	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:55:13	1
3585	99	306	0,305	cyclictest	1304	-21	kworker/u16:2+efi_rts_wq	23:50:14	2
3583	99	306	0,305	cyclictest	1673	-21	kworker/u16:4+efi_rts_wq	23:00:13	0
3583	99	305	0,304	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	21:55:11	0
3586	99	304	0,303	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:15:11	3
3586	99	304	0,303	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:10:13	3
3586	99	304	0,303	cyclictest	1010	-21	kworker/u16:1+efi_rts_wq	19:30:14	3
3584	99	304	0,303	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	21:20:13	1
3583	99	304	0,303	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	19:50:12	0
3583	99	303	0,302	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	19:35:12	0
3583	99	303	0,302	cyclictest	14264	-21	kworker/u16:0+efi_rts_wq	00:30:13	0
3583	99	303	0,302	cyclictest	1010	-21	kworker/u16:1+efi_rts_wq	19:20:12	0
3584	99	302	0,301	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	21:00:06	1
3584	99	301	0,300	cyclictest	11644	-21	kworker/u16:1+efi_rts_wq	00:35:48	1
3583	99	300	0,299	cyclictest	19149	-21	kworker/u16:2+efi_rts_wq	19:15:00	0
3586	99	299	0,298	cyclictest	1673	-21	kworker/u16:4+efi_rts_wq	23:15:12	3
3586	99	299	0,298	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	19:50:12	3
3586	99	298	0,297	cyclictest	19149	-21	kworker/u16:2+efi_rts_wq	19:14:47	3
3585	99	298	0,296	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	20:50:13	2
3583	99	298	0,297	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:05:12	0
3585	99	297	0,296	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:20:13	2
3584	99	297	0,296	cyclictest	19149	-21	kworker/u16:2+efi_rts_wq	19:10:12	1
3584	99	297	0,296	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	22:00:13	1
3586	99	295	0,294	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	20:35:13	3
3583	99	295	0,294	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	21:05:14	0
3584	99	294	0,292	cyclictest	1673	-21	kworker/u16:4+efi_rts_wq	22:55:12	1
3584	99	291	0,290	cyclictest	1304	-21	kworker/u16:2+efi_rts_wq	23:45:13	1
3583	99	291	0,290	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:40:10	0
3586	99	289	0,288	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:05:13	3
3585	99	288	0,287	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:40:10	2
3584	99	287	0,286	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	19:15:13	1
3586	99	286	0,283	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	21:15:14	3
3584	99	283	0,282	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	22:35:13	1
3584	99	283	0,282	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	19:34:51	1
3583	99	283	0,282	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	19:25:11	0
3584	99	282	0,281	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:30:00	1
3584	99	282	0,280	cyclictest	1673	-21	kworker/u16:4+efi_rts_wq	23:25:34	1
3586	99	281	0,280	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	22:40:12	3
3583	99	281	0,280	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:25:14	0
3586	99	280	0,279	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	19:35:13	3
3586	99	280	0,279	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	19:40:13	3
3586	99	280	0,278	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	23:30:13	3
3583	99	277	0,276	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:15:13	0
3583	99	277	0,276	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:15:13	0
3583	99	276	0,275	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	23:30:12	0
3583	99	276	0,275	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:00:13	0
3584	99	275	0,273	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	22:50:13	1
3584	99	274	0,273	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	20:45:14	1
3584	99	274	0,273	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	21:45:11	1
3584	99	274	0,273	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	21:30:15	1
3586	99	271	0,270	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:15:22	3
3586	99	271	0,270	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:15:21	3
3584	99	271	0,270	cyclictest	11644	-21	kworker/u16:1+efi_rts_wq	00:25:46	1
3586	99	269	0,268	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	21:30:12	3
3586	99	268	0,267	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	21:25:14	3
3586	99	267	0,266	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	23:10:32	3
3584	99	267	0,266	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	22:40:12	1
3584	99	265	0,264	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	21:55:11	1
3583	99	265	0,264	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:20:12	0
3585	99	263	0,262	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	21:35:13	2
3583	99	263	0,261	cyclictest	14264	-21	kworker/u16:0+efi_rts_wq	00:10:11	0
3584	99	261	0,260	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	21:10:13	1
3585	99	260	0,258	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	19:45:11	2
3584	99	259	0,258	cyclictest	14264	-21	kworker/u16:0+efi_rts_wq	00:00:13	1
3583	99	257	0,256	cyclictest	14264	-21	kworker/u16:0+efi_rts_wq	00:20:44	0
3583	99	256	0,255	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:10:21	0
3586	99	255	0,254	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	23:00:30	3
3586	99	255	0,254	cyclictest	14264	-21	kworker/u16:0+efi_rts_wq	00:10:43	3
3583	99	255	0,254	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	22:25:23	0
3586	99	254	0,253	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	19:55:12	3
3586	99	254	0,253	cyclictest	1304	-21	kworker/u16:2+efi_rts_wq	23:45:14	3
3584	99	253	0,252	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	22:45:14	1
3585	99	251	0,248	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	20:30:14	2
3584	99	251	0,250	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:05:14	1
3585	99	249	0,248	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	22:30:12	2
3585	99	248	0,245	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:05:13	2
3586	99	247	0,246	cyclictest	8642	-21	kworker/u16:3+efi_rts_wq	21:40:11	3
3585	99	247	0,246	cyclictest	1673	-21	kworker/u16:4+efi_rts_wq	23:25:13	2
3583	99	247	0,246	cyclictest	1673	-21	kworker/u16:4+efi_rts_wq	23:55:14	0
3584	99	246	0,245	cyclictest	14264	-21	kworker/u16:0+efi_rts_wq	00:20:15	1
3584	99	245	0,244	cyclictest	1673	-21	kworker/u16:4+efi_rts_wq	23:55:40	1
3586	99	238	0,237	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	21:00:13	3
3584	99	238	0,237	cyclictest	1304	-21	kworker/u16:2+efi_rts_wq	23:50:14	1
3583	99	238	0,237	cyclictest	11644	-21	kworker/u16:1+efi_rts_wq	00:25:12	0
3583	99	237	0,236	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	19:44:53	0
3586	99	236	0,235	cyclictest	31704	-21	kworker/u16:1+efi_rts_wq	22:35:25	3
3586	99	236	0,235	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	22:25:12	3
3585	99	231	0,230	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	20:35:02	2
3585	99	231	0,229	cyclictest	1304	-21	kworker/u16:2+efi_rts_wq	23:40:13	2
3585	99	228	0,227	cyclictest	14472	-21	kworker/u16:0+efi_rts_wq	21:05:08	2
3583	99	227	0,226	cyclictest	1304	-21	kworker/u16:2+efi_rts_wq	23:50:39	0
3584	99	222	0,221	cyclictest	1010	-21	kworker/u16:1+efi_rts_wq	19:20:12	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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