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 Sat Sep 19, 2026 00:43:55)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
8438	2	318	312,4	sleep3	0	-21	swapper/3	19:06:10	3
8600	2	316	309,5	sleep1	0	-21	swapper/1	19:08:17	1
8445	2	316	302,5	sleep0	0	-21	swapper/0	19:06:15	0
8633	2	315	308,5	sleep2	0	-21	swapper/2	19:08:42	2
9001	99	306	0,305	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	00:25:13	2
9000	99	305	0,304	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	19:54:20	1
8999	99	305	0,304	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	00:15:13	0
9001	99	304	0,303	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	20:25:11	2
9001	99	303	0,302	cyclictest	21058	-21	kworker/u16:1+efi_rts_wq	23:50:13	2
8999	99	302	0,301	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	19:40:12	0
9001	99	301	0,300	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	20:59:33	2
8999	99	301	0,300	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	20:05:12	0
9001	99	300	0,299	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	22:05:14	2
9001	99	300	0,299	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	23:45:06	2
8999	99	300	0,299	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	22:20:11	0
9000	99	299	0,298	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	21:34:40	1
8999	99	299	0,297	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	20:45:13	0
9001	99	298	0,297	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	21:20:12	2
8999	99	298	0,297	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	21:20:12	0
9002	99	297	0,296	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	20:45:13	3
9001	99	297	0,296	cyclictest	6312	-21	kworker/u16:3+efi_rts_wq	00:10:12	2
9001	99	297	0,294	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	20:40:12	2
9000	99	295	0,294	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	21:45:13	1
9001	99	293	0,292	cyclictest	21058	-21	kworker/u16:1+efi_rts_wq	23:40:13	2
9001	99	292	0,291	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	23:15:11	2
9000	99	292	1,290	cyclictest	24934	-21	kworker/u16:1+efi_rts_wq	19:20:11	1
9000	99	290	0,289	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	22:10:13	1
9001	99	289	0,288	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	22:15:13	2
9000	99	289	0,288	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	21:00:11	1
9002	99	288	0,287	cyclictest	8192	-21	kworker/u16:1+efi_rts_wq	23:05:12	3
9000	99	288	0,287	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	20:35:14	1
9000	99	288	0,287	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	20:14:24	1
8999	99	288	0,287	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	00:35:15	0
9001	99	287	0,286	cyclictest	2753	-21	kworker/u16:3+efi_rts_wq	23:00:12	2
9001	99	287	0,286	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	21:40:13	2
8999	99	287	0,286	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	20:29:27	0
9002	99	285	0,284	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	23:35:14	3
9000	99	285	0,284	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	21:29:39	1
9000	99	285	0,284	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	21:29:39	1
9000	99	284	0,283	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	19:25:13	1
9000	99	284	0,283	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	00:05:13	1
9002	99	282	0,281	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	20:09:23	3
9002	99	281	0,280	cyclictest	13302	-21	kworker/u16:0+efi_rts_wq	23:10:13	3
9002	99	280	0,279	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	20:34:28	3
9000	99	280	0,279	cyclictest	6312	-21	kworker/u16:3+efi_rts_wq	00:21:05	1
8999	99	280	0,279	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	21:55:11	0
9001	99	279	0,278	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	19:30:11	2
9000	99	279	0,278	cyclictest	24934	-21	kworker/u16:1+efi_rts_wq	19:15:12	1
9001	99	278	0,277	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	19:45:12	2
9002	99	277	0,276	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	20:10:13	3
9001	99	277	0,276	cyclictest	24934	-21	kworker/u16:1+efi_rts_wq	19:24:16	2
9000	99	277	0,275	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	22:30:12	1
8999	99	276	0,275	cyclictest	13302	-21	kworker/u16:0+efi_rts_wq	23:09:59	0
9001	99	275	0,274	cyclictest	21058	-21	kworker/u16:1+efi_rts_wq	23:25:12	2
8999	99	270	0,269	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	21:10:12	0
9002	99	269	0,268	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	23:15:11	3
9000	99	269	0,268	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	00:16:05	1
9000	99	266	0,265	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	22:20:11	1
9000	99	264	0,263	cyclictest	21058	-21	kworker/u16:1+efi_rts_wq	23:45:12	1
8999	99	263	0,262	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	20:30:12	0
8999	99	263	0,262	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	20:20:12	0
8999	99	263	0,262	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	23:30:13	0
9002	99	262	0,261	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	19:55:12	3
9002	99	262	0,261	cyclictest	21058	-21	kworker/u16:1+efi_rts_wq	23:40:13	3
8999	99	262	0,261	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	21:05:13	0
9000	99	260	0,259	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	22:00:12	1
8999	99	259	0,258	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	22:00:12	0
9002	99	258	0,256	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	22:40:15	3
9000	99	256	0,255	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	21:40:13	1
8999	99	256	0,255	cyclictest	6312	-21	kworker/u16:3+efi_rts_wq	00:30:12	0
9001	99	254	0,253	cyclictest	2753	-21	kworker/u16:3+efi_rts_wq	22:45:11	2
9002	99	252	0,251	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	23:20:01	3
9002	99	251	0,250	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	19:19:15	3
8999	99	251	0,250	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	22:35:13	0
9002	99	250	0,248	cyclictest	2753	-21	kworker/u16:3+efi_rts_wq	23:00:12	3
8999	99	250	0,249	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	23:55:13	0
9002	99	249	0,248	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	19:35:14	3
9001	99	249	0,248	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	22:39:53	2
9000	99	249	0,248	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	22:25:12	1
8999	99	248	0,247	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	21:35:14	0
9001	99	245	0,244	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	22:29:51	2
9001	99	245	0,244	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	21:09:35	2
8999	99	245	0,244	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	20:15:12	0
9001	99	244	0,243	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	00:01:01	2
9000	99	244	0,241	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	20:30:12	1
9001	99	237	0,236	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	22:10:13	2
8999	99	236	0,235	cyclictest	2753	-21	kworker/u16:3+efi_rts_wq	22:45:11	0
8999	99	236	0,235	cyclictest	18322	-21	kworker/u16:2+efi_rts_wq	00:25:13	0
9001	99	233	0,230	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	21:15:12	2
9000	99	232	0,231	cyclictest	21058	-21	kworker/u16:1+efi_rts_wq	23:30:03	1
8999	99	232	0,230	cyclictest	2753	-21	kworker/u16:3+efi_rts_wq	23:04:58	0
9000	99	230	0,229	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	20:50:12	1
9000	99	230	0,229	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	19:44:19	1
8999	99	230	0,229	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	22:19:49	0
8999	99	230	0,229	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	21:50:12	0
9000	99	229	0,228	cyclictest	6312	-21	kworker/u16:3+efi_rts_wq	00:30:12	1
9001	99	228	0,227	cyclictest	24934	-21	kworker/u16:1+efi_rts_wq	19:10:12	2
9000	99	228	0,227	cyclictest	5607	-21	kworker/u16:3+efi_rts_wq	21:10:12	1
9002	99	225	0,224	cyclictest	19805	-21	kworker/u16:0+efi_rts_wq	20:00:12	3
8999	99	224	0,223	cyclictest	9733	-21	kworker/u16:1+efi_rts_wq	22:40:15	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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