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 May 24, 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
15544	2	318	303,5	sleep0	0	-21	swapper/0	19:07:47	0
15572	2	317	308,7	sleep1	0	-21	swapper/1	19:08:08	1
15579	2	315	307,5	sleep3	0	-21	swapper/3	19:08:15	3
15421	2	315	307,5	sleep2	0	-21	swapper/2	19:06:13	2
16099	99	301	0,300	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	20:50:12	3
16099	99	299	0,297	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	21:00:11	3
16096	99	299	0,298	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	19:45:13	1
16095	99	299	0,298	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:20:14	0
16098	99	298	0,297	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	21:20:17	2
16095	99	298	0,297	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	00:30:13	0
16096	99	297	0,296	cyclictest	24315	-21	kworker/u16:2+efi_rts_wq	22:45:14	1
16095	99	296	0,295	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	21:15:14	0
16098	99	295	0,292	cyclictest	24315	-21	kworker/u16:2+efi_rts_wq	23:00:13	2
16099	99	293	0,292	cyclictest	31081	-21	kworker/u16:1+efi_rts_wq	19:14:50	3
16099	99	293	0,292	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:35:31	3
16096	99	293	0,292	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	20:10:12	1
16099	99	292	0,291	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	00:35:13	3
16099	99	292	0,291	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	19:29:55	3
16099	99	290	0,289	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	19:50:13	3
16098	99	290	0,288	cyclictest	4993	-21	kworker/u16:1+efi_rts_wq	22:35:12	2
16096	99	290	0,289	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	22:10:12	1
16096	99	290	0,289	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	21:25:17	1
16096	99	290	0,289	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	19:34:55	1
16099	99	289	0,288	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	21:40:13	3
16095	99	288	0,287	cyclictest	24315	-21	kworker/u16:2+efi_rts_wq	22:55:35	0
16096	99	287	0,286	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	00:05:12	1
16099	99	286	0,285	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	22:00:25	3
16098	99	286	0,285	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	20:55:12	2
16099	99	283	0,282	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	23:45:14	3
16099	99	283	0,282	cyclictest	24315	-21	kworker/u16:2+efi_rts_wq	23:00:13	3
16096	99	283	0,282	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	20:45:12	1
16098	99	282	0,281	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	21:40:20	2
16096	99	281	0,280	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	19:40:14	1
16099	99	280	0,279	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	23:15:15	3
16098	99	280	0,278	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	23:35:12	2
16096	99	279	0,278	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	00:00:13	1
16096	99	279	0,278	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	22:00:15	1
16096	99	278	0,277	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	20:30:12	1
16098	99	277	0,276	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	00:20:52	2
16099	99	276	0,275	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	21:55:23	3
16095	99	276	0,274	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	21:50:12	0
16098	99	274	0,273	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	19:15:01	2
16096	99	274	0,273	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	23:30:15	1
16096	99	274	0,273	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	21:35:12	1
16095	99	274	0,273	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	23:25:13	0
16095	99	274	0,272	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	00:15:15	0
16096	99	272	0,271	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	19:15:13	1
16096	99	272	0,271	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	00:10:50	1
16095	99	272	0,271	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:15:13	0
16096	99	271	0,269	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	21:00:12	1
16095	99	271	0,270	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	20:15:14	0
16099	99	270	0,269	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	21:10:13	3
16096	99	270	0,269	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	23:40:13	1
16096	99	268	0,267	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	23:20:13	1
16096	99	267	0,266	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:15:13	1
16095	99	266	0,265	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	21:25:12	0
16098	99	265	0,264	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	23:25:11	2
16096	99	264	0,262	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:30:13	1
16098	99	263	0,262	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	19:25:13	2
16096	99	263	0,262	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	20:25:12	1
16095	99	263	0,262	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	20:45:09	0
16099	99	262	0,261	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	20:00:00	3
16096	99	262	0,261	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	00:20:14	1
16098	99	261	0,260	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	20:20:14	2
16098	99	260	0,259	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	00:10:14	2
16098	99	260	0,259	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:05:14	2
16096	99	260	0,259	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	23:45:14	1
16096	99	260	0,259	cyclictest	31081	-21	kworker/u16:1+efi_rts_wq	19:10:12	1
16096	99	259	0,258	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	22:25:28	1
16096	99	259	0,258	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	21:05:13	1
16095	99	258	0,257	cyclictest	31081	-21	kworker/u16:1+efi_rts_wq	19:20:12	0
16098	99	257	0,256	cyclictest	15065	-21	kworker/u16:3+efi_rts_wq	23:10:13	2
16096	99	257	0,256	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	20:50:13	1
16099	99	256	0,255	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	21:20:13	3
16096	99	255	0,254	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:50:12	1
16095	99	255	0,254	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	00:25:13	0
16098	99	254	0,253	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	23:15:13	2
16096	99	252	0,251	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	21:45:15	1
16096	99	252	0,251	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	19:35:12	1
16099	99	251	0,249	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:05:14	3
16095	99	250	0,249	cyclictest	31914	-21	kworker/u16:1+efi_rts_wq	23:55:13	0
16099	99	249	0,248	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	00:05:48	3
16099	99	249	0,248	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	21:15:16	3
16099	99	249	0,247	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	20:15:15	3
16099	99	247	0,246	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	00:10:14	3
16095	99	245	0,244	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	19:49:57	0
16095	99	245	0,244	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	20:00:14	0
16095	99	243	0,241	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	21:55:12	0
16096	99	242	0,241	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	20:05:12	1
16098	99	241	0,240	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	23:40:44	2
16095	99	239	0,238	cyclictest	15065	-21	kworker/u16:3+efi_rts_wq	23:10:13	0
16098	99	238	0,237	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	22:25:13	2
16095	99	238	0,237	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	19:44:57	0
16099	99	237	0,236	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:40:12	3
16098	99	237	0,236	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	22:10:27	2
16095	99	236	0,235	cyclictest	31697	-21	kworker/u16:3+efi_rts_wq	20:20:05	0
16098	99	234	0,231	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	22:30:13	2
16099	99	233	0,232	cyclictest	22886	-21	kworker/u16:0+efi_rts_wq	00:00:49	3
16095	99	231	0,230	cyclictest	4993	-21	kworker/u16:1+efi_rts_wq	22:35:12	0
16099	99	230	0,229	cyclictest	18116	-21	kworker/u16:0+efi_rts_wq	20:35:12	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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