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 Tue Jul 28, 2026 00:43:56)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
31086	2	337	312,23	sleep2	0	-21	swapper/2	19:09:52	2
31006	2	319	304,5	sleep3	0	-21	swapper/3	19:08:53	3
30774	2	316	301,5	sleep0	0	-21	swapper/0	19:05:53	0
30770	2	313	305,5	sleep1	0	-21	swapper/1	19:05:50	1
31485	99	302	0,301	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:45:18	2
31488	99	298	0,297	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:50:13	3
31483	99	296	0,294	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:00:13	1
31485	99	295	0,294	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	21:25:14	2
31483	99	295	0,294	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	19:45:13	1
31488	99	294	0,293	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	20:15:13	3
31488	99	294	0,293	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:45:13	3
31482	99	293	0,292	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	22:15:14	0
31488	99	292	0,291	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	19:10:14	3
31485	99	292	0,291	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	22:55:14	2
31483	99	292	0,291	cyclictest	20050	-21	kworker/u16:2+efi_rts_wq	00:00:13	1
31488	99	290	0,289	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	19:34:32	3
31488	99	290	0,289	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	21:55:15	3
31485	99	289	0,285	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	00:30:13	2
31482	99	289	0,287	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	23:25:14	0
31483	99	288	0,287	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	00:10:13	1
31483	99	288	0,286	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	19:50:13	1
31483	99	287	0,286	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	21:09:51	1
31483	99	286	0,285	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	19:40:15	1
31482	99	286	0,285	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	22:50:12	0
31485	99	285	0,284	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:29:42	2
31483	99	283	0,282	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	20:19:41	1
31483	99	282	0,281	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:24:53	1
31488	99	280	0,279	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	22:50:12	3
31488	99	280	0,279	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	21:40:11	3
31482	99	279	0,278	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	20:30:13	0
31488	99	275	0,274	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	19:20:12	3
31485	99	274	0,273	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	20:35:13	2
31483	99	274	0,273	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:25:04	1
31482	99	274	0,272	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:40:13	0
31482	99	273	0,272	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	21:55:15	0
31488	99	271	0,270	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:30:13	3
31483	99	271	0,270	cyclictest	20050	-21	kworker/u16:2+efi_rts_wq	00:20:13	1
31488	99	269	0,268	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	22:05:13	3
31483	99	269	0,268	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:40:12	1
31482	99	269	0,268	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:05:14	0
31482	99	269	0,268	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:54:47	0
31488	99	267	0,266	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:40:13	3
31483	99	267	0,266	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:25:14	1
31488	99	266	0,265	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:20:12	3
31482	99	266	0,265	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	19:30:13	0
31485	99	265	0,264	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:20:12	2
31485	99	264	0,263	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	21:15:14	2
31483	99	264	0,263	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:10:10	1
31485	99	262	0,261	cyclictest	20050	-21	kworker/u16:2+efi_rts_wq	00:25:13	2
31483	99	261	0,260	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	23:05:13	1
31485	99	259	0,258	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:35:14	2
31483	99	259	0,258	cyclictest	20050	-21	kworker/u16:2+efi_rts_wq	00:35:13	1
31482	99	259	0,257	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:30:13	0
31488	99	258	0,257	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:44:45	3
31485	99	257	0,256	cyclictest	7199	-21	kworker/u16:1+efi_rts_wq	19:15:01	2
31485	99	256	0,255	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	22:45:13	2
31482	99	255	0,254	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:20:12	0
31482	99	255	0,254	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	19:55:14	0
31488	99	254	0,253	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	19:39:33	3
31483	99	254	0,253	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:35:14	1
31488	99	253	0,252	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:25:14	3
31482	99	253	0,252	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:05:14	0
31488	99	251	0,250	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:55:14	3
31483	99	251	0,250	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:00:15	1
31488	99	250	0,249	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:45:11	3
31485	99	250	0,249	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	22:50:07	2
31485	99	248	0,247	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	23:00:08	2
31488	99	246	0,245	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:10:14	3
31488	99	246	0,245	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:10:14	3
31485	99	245	0,244	cyclictest	20050	-21	kworker/u16:2+efi_rts_wq	00:20:13	2
31483	99	244	0,241	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	20:35:14	1
31482	99	244	0,243	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:20:12	0
31485	99	243	0,242	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:05:14	2
31485	99	243	0,241	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	22:25:14	2
31483	99	243	0,242	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	23:20:12	1
31483	99	243	0,242	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	21:40:11	1
31482	99	243	0,242	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:00:14	0
31488	99	242	0,241	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:00:13	3
31485	99	242	0,241	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	23:15:13	2
31483	99	240	0,239	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:14:51	1
31482	99	239	0,238	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	19:35:13	0
31483	99	237	0,236	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:35:15	1
31482	99	237	0,236	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:10:12	0
31488	99	235	0,234	cyclictest	20050	-21	kworker/u16:2+efi_rts_wq	00:05:14	3
31485	99	230	0,229	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	19:40:14	2
31482	99	230	0,229	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	21:00:14	0
31483	99	229	0,228	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:30:14	1
31482	99	229	0,228	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:04:59	0
31488	99	228	0,227	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	20:45:14	3
31483	99	228	0,226	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:10:15	1
31483	99	228	0,226	cyclictest	19396	-21	kworker/u16:2+efi_rts_wq	20:10:14	1
31488	99	227	0,226	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:35:14	3
31482	99	225	0,224	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:45:11	0
31483	99	224	0,223	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	22:00:12	1
31488	99	223	0,222	cyclictest	5814	-21	kworker/u16:0+efi_rts_wq	21:39:55	3
31483	99	223	0,222	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	23:45:13	1
31485	99	221	0,220	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	23:30:14	2
31488	99	220	0,219	cyclictest	22623	-21	kworker/u16:3+efi_rts_wq	00:30:13	3
31482	99	219	0,218	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	22:55:08	0
31482	99	219	0,218	cyclictest	25218	-21	kworker/u16:1+efi_rts_wq	22:45:07	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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