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 Aug 29, 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
3780	2	337	312,23	sleep2	0	-21	swapper/2	07:06:39	2
2198	2	317	303,5	sleep1	0	-21	swapper/1	07:05:02	1
3946	2	316	302,5	sleep0	0	-21	swapper/0	07:08:46	0
3714	2	316	308,5	sleep3	0	-21	swapper/3	07:05:48	3
4307	99	299	0,298	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:15:13	1
4308	99	298	0,297	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	08:05:13	2
4308	99	298	0,296	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	10:00:13	2
4308	99	297	0,295	cyclictest	24222	-21	kworker/u16:0+efi_rts_wq	11:43:12	2
4307	99	296	0,295	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	10:10:11	1
4307	99	295	0,294	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:40:14	1
4306	99	294	0,293	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:40:13	0
4306	99	292	0,291	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	10:02:54	0
4309	99	291	0,290	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	10:25:13	3
4308	99	291	0,290	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	09:30:12	2
4307	99	291	0,290	cyclictest	28861	-21	kworker/u16:2+efi_rts_wq	12:05:12	1
4309	99	290	0,289	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	10:43:01	3
4306	99	290	0,288	cyclictest	15523	-21	kworker/u16:3+efi_rts_wq	12:00:11	0
4307	99	289	0,288	cyclictest	24222	-21	kworker/u16:0+efi_rts_wq	11:40:13	1
4306	99	289	0,288	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:10:12	0
4309	99	288	0,287	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:22:25	3
4309	99	288	0,287	cyclictest	15523	-21	kworker/u16:3+efi_rts_wq	11:25:12	3
4308	99	288	0,287	cyclictest	30017	-21	kworker/u16:1+efi_rts_wq	11:10:15	2
4308	99	287	0,286	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	09:10:12	2
4306	99	287	0,286	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	10:32:59	0
4308	99	286	0,284	cyclictest	32492	-21	kworker/u16:2+efi_rts_wq	10:55:13	2
4309	99	285	0,284	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	10:22:58	3
4309	99	285	0,284	cyclictest	19478	-21	kworker/u16:1+efi_rts_wq	07:27:26	3
4309	99	284	0,283	cyclictest	32492	-21	kworker/u16:2+efi_rts_wq	11:35:13	3
4308	99	284	0,283	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:15:13	2
4309	99	283	0,282	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:27:37	3
4306	99	283	0,282	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	09:05:14	0
4307	99	282	0,281	cyclictest	15523	-21	kworker/u16:3+efi_rts_wq	12:25:15	1
4306	99	282	0,281	cyclictest	19478	-21	kworker/u16:1+efi_rts_wq	07:20:14	0
4307	99	281	0,280	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:22:36	1
4306	99	281	0,280	cyclictest	30017	-21	kworker/u16:1+efi_rts_wq	10:50:13	0
4306	99	281	0,280	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	08:37:39	0
4307	99	280	0,279	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	09:40:11	1
4306	99	280	0,279	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	10:10:11	0
4306	99	278	0,277	cyclictest	28861	-21	kworker/u16:2+efi_rts_wq	12:33:18	0
4309	99	277	0,276	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:35:13	3
4309	99	277	0,276	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:35:13	3
4309	99	276	0,274	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:15:12	3
4308	99	276	0,275	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	09:15:14	2
4308	99	276	0,274	cyclictest	30017	-21	kworker/u16:1+efi_rts_wq	11:05:12	2
4309	99	275	0,274	cyclictest	15523	-21	kworker/u16:3+efi_rts_wq	12:28:17	3
4306	99	275	0,274	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	08:00:13	0
4308	99	274	0,273	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:10:13	2
4308	99	273	0,272	cyclictest	19478	-21	kworker/u16:1+efi_rts_wq	07:37:28	2
4308	99	273	0,272	cyclictest	19478	-21	kworker/u16:1+efi_rts_wq	07:37:28	2
4307	99	273	0,272	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	08:10:13	1
4309	99	272	0,271	cyclictest	32492	-21	kworker/u16:2+efi_rts_wq	10:55:13	3
4308	99	272	0,271	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:30:12	2
4307	99	272	0,271	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	09:20:12	1
4309	99	271	0,270	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	10:45:14	3
4309	99	271	0,270	cyclictest	15523	-21	kworker/u16:3+efi_rts_wq	11:23:08	3
4308	99	271	0,270	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:32:38	2
4306	99	270	0,269	cyclictest	24222	-21	kworker/u16:0+efi_rts_wq	11:45:13	0
4308	99	269	0,268	cyclictest	30017	-21	kworker/u16:1+efi_rts_wq	11:00:14	2
4309	99	268	0,267	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:42:28	3
4308	99	267	0,266	cyclictest	28861	-21	kworker/u16:2+efi_rts_wq	12:30:14	2
4306	99	265	0,264	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	09:30:12	0
4308	99	264	0,263	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	09:20:12	2
4309	99	263	0,262	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	10:00:14	3
4308	99	263	0,262	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:40:14	2
4307	99	263	0,262	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:50:12	1
4308	99	262	0,259	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	09:55:13	2
4309	99	261	0,260	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	10:30:13	3
4309	99	261	0,260	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	08:57:42	3
4308	99	261	0,259	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	09:40:11	2
4307	99	261	0,260	cyclictest	30017	-21	kworker/u16:1+efi_rts_wq	11:10:14	1
4307	99	260	0,259	cyclictest	28861	-21	kworker/u16:2+efi_rts_wq	12:20:12	1
4306	99	260	0,259	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	08:25:15	0
4308	99	259	0,258	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	09:25:12	2
4306	99	259	0,258	cyclictest	28861	-21	kworker/u16:2+efi_rts_wq	12:08:15	0
4306	99	259	0,257	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	08:05:13	0
4306	99	258	0,257	cyclictest	32492	-21	kworker/u16:2+efi_rts_wq	11:30:13	0
4307	99	257	0,256	cyclictest	15523	-21	kworker/u16:3+efi_rts_wq	12:35:14	1
4309	99	252	0,251	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	08:42:39	3
4307	99	251	0,250	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	10:35:15	1
4307	99	251	0,250	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	10:05:14	1
4306	99	251	0,250	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:20:13	0
4306	99	251	0,250	cyclictest	30017	-21	kworker/u16:1+efi_rts_wq	11:08:05	0
4308	99	249	0,248	cyclictest	19478	-21	kworker/u16:1+efi_rts_wq	07:57:30	2
4307	99	249	0,248	cyclictest	28861	-21	kworker/u16:2+efi_rts_wq	11:55:13	1
4308	99	247	0,246	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	08:45:13	2
4307	99	245	0,244	cyclictest	19478	-21	kworker/u16:1+efi_rts_wq	07:45:13	1
4309	99	244	0,243	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:20:13	3
4307	99	244	0,243	cyclictest	32492	-21	kworker/u16:2+efi_rts_wq	11:30:14	1
4306	99	244	0,243	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	09:45:13	0
4306	99	244	0,243	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	09:25:13	0
4308	99	243	0,241	cyclictest	32492	-21	kworker/u16:2+efi_rts_wq	11:35:13	2
4306	99	243	0,242	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:47:41	0
4309	99	241	0,240	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:32:26	3
4308	99	241	0,240	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	08:17:35	2
4308	99	241	0,240	cyclictest	19478	-21	kworker/u16:1+efi_rts_wq	07:25:13	2
4309	99	240	0,239	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	09:52:53	3
4306	99	239	0,238	cyclictest	31609	-21	kworker/u16:0+efi_rts_wq	07:30:12	0
4309	99	235	0,234	cyclictest	15523	-21	kworker/u16:3+efi_rts_wq	12:15:13	3
4308	99	235	0,234	cyclictest	25369	-21	kworker/u16:3+efi_rts_wq	09:07:45	2
4309	99	233	0,232	cyclictest	19478	-21	kworker/u16:1+efi_rts_wq	07:45:12	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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