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 Mon Jul 13, 2026 00:43:54)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
28187	2	332	310,19	sleep3	0	-21	swapper/3	19:06:49	3
28087	2	320	313,5	sleep2	0	-21	swapper/2	19:05:32	2
28263	2	315	307,5	sleep1	0	-21	swapper/1	19:07:48	1
28277	2	314	306,5	sleep0	0	-21	swapper/0	19:07:59	0
28700	99	297	0,296	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	23:30:14	1
28701	99	296	0,295	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:55:13	2
28702	99	295	0,294	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:00:10	3
28702	99	295	0,292	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	23:05:13	3
28699	99	294	0,293	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	23:46:02	0
28699	99	294	0,291	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	20:29:45	0
28702	99	292	0,291	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:50:13	3
28700	99	292	0,291	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	19:39:37	1
28700	99	290	0,289	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	23:55:13	1
28701	99	289	0,288	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	19:15:13	2
28700	99	289	0,288	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:10:13	1
28699	99	289	0,287	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:25:12	0
28702	99	288	0,287	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	00:05:12	3
28702	99	288	0,287	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:20:13	3
28700	99	288	0,284	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	23:00:13	1
28702	99	287	0,286	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	23:30:13	3
28702	99	287	0,286	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:05:04	3
28701	99	287	0,286	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	00:35:13	2
28701	99	287	0,286	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	00:00:14	2
28699	99	287	0,286	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	23:55:13	0
28702	99	286	0,285	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	00:30:14	3
28700	99	285	0,284	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:00:03	1
28702	99	284	0,283	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:55:15	3
28702	99	284	0,281	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	19:10:14	3
28700	99	284	0,283	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	20:34:46	1
28701	99	283	0,282	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	20:30:13	2
28700	99	283	0,282	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	23:40:14	1
28699	99	283	0,282	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:20:13	0
28702	99	282	0,281	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:10:14	3
28699	99	282	0,281	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:40:12	0
28699	99	282	0,281	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:35:13	0
28701	99	281	0,280	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:59:41	2
28701	99	279	0,278	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:15:13	2
28699	99	279	0,278	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:25:06	0
28701	99	278	0,277	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	19:10:14	2
28700	99	278	0,277	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	23:20:13	1
28701	99	277	0,276	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	20:40:13	2
28699	99	277	0,276	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:15:13	0
28702	99	276	0,275	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	23:35:14	3
28700	99	276	0,274	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:15:10	1
28699	99	276	0,275	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:50:14	0
28702	99	275	0,274	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	20:35:14	3
28702	99	275	0,272	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	00:15:13	3
28699	99	275	0,273	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:50:13	0
28699	99	274	0,273	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	21:55:02	0
28699	99	274	0,273	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:30:13	0
28702	99	272	0,271	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:45:14	3
28700	99	272	0,271	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:25:10	1
28699	99	272	0,271	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	21:20:13	0
28699	99	272	0,271	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:10:14	0
28702	99	268	0,267	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:35:14	3
28702	99	267	0,266	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:19:55	3
28700	99	267	0,266	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	00:15:13	1
28700	99	267	0,266	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	23:15:13	1
28700	99	267	0,266	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	19:44:37	1
28701	99	265	0,264	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	21:30:12	2
28702	99	264	0,263	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	23:45:13	3
28702	99	264	0,263	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:35:12	3
28700	99	264	0,263	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	00:06:07	1
28702	99	263	0,262	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:45:14	3
28702	99	260	0,259	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	20:30:13	3
28700	99	258	0,257	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	20:05:14	1
28701	99	257	0,256	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	23:45:13	2
28699	99	257	0,256	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:29:57	0
28700	99	254	0,253	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:50:13	1
28700	99	254	0,253	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:50:12	1
28702	99	253	0,252	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:10:13	3
28702	99	253	0,251	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:15:00	3
28700	99	252	0,251	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	23:51:04	1
28701	99	251	0,250	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:25:13	2
28700	99	250	0,248	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:40:13	1
28701	99	249	0,248	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	00:20:14	2
28700	99	249	0,248	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	19:45:12	1
28699	99	248	0,247	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	00:00:14	0
28702	99	244	0,243	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:09:54	3
28701	99	244	0,243	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	23:05:13	2
28699	99	243	0,242	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	21:45:12	0
28699	99	241	0,240	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	23:25:13	0
28700	99	240	0,238	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	00:30:14	1
28702	99	239	0,238	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:55:14	3
28699	99	238	0,237	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:50:13	0
28702	99	236	0,234	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:30:12	3
28701	99	235	0,234	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:30:12	2
28700	99	235	0,234	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:40:13	1
28702	99	233	0,232	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:24:56	3
28702	99	231	0,230	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:25:12	3
28700	99	230	0,229	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	19:29:34	1
28701	99	229	0,228	cyclictest	16824	-21	kworker/u16:1+efi_rts_wq	20:25:13	2
28701	99	228	0,227	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	00:05:13	2
28702	99	227	0,226	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	20:00:10	3
28700	99	227	0,226	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:30:13	1
28699	99	219	0,218	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	22:55:12	0
28700	99	217	0,214	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	22:40:12	1
28700	99	216	0,215	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	22:10:14	1
28699	99	216	0,215	cyclictest	17253	-21	kworker/u16:0+efi_rts_wq	21:34:59	0
28701	99	215	0,214	cyclictest	8186	-21	kworker/u16:2+efi_rts_wq	23:50:13	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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