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 Wed May 27, 2026 12:43:55)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
7555	2	333	308,8	sleep0	0	-21	swapper/0	07:09:35	0
7469	2	330	308,5	sleep3	0	-21	swapper/3	07:08:30	3
7358	2	318	305,4	sleep1	0	-21	swapper/1	07:07:04	1
7349	2	317	311,4	sleep2	0	-21	swapper/2	07:06:57	2
7852	99	305	0,302	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	07:20:11	3
7852	99	297	0,296	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	07:40:12	3
7850	99	297	0,294	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	09:20:12	1
7849	99	297	0,296	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:00:11	0
7850	99	296	0,295	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	10:27:06	1
7850	99	296	0,295	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	08:50:12	1
7849	99	294	0,293	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:55:12	0
7849	99	293	0,290	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	10:10:11	0
7849	99	292	0,291	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	10:57:12	0
7851	99	290	0,289	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	10:10:10	2
7851	99	289	0,288	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	07:25:14	2
7849	99	289	0,288	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	11:05:10	0
7851	99	288	0,287	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:00:13	2
7851	99	288	0,287	cyclictest	26410	-21	kworker/u16:0+efi_rts_wq	12:15:11	2
7850	99	288	0,287	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:40:11	1
7849	99	287	0,286	cyclictest	26410	-21	kworker/u16:0+efi_rts_wq	12:25:12	0
7852	99	286	0,285	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:16:55	3
7850	99	286	0,285	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	11:17:15	1
7851	99	284	0,283	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	10:35:12	2
7849	99	284	0,283	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	12:30:12	0
7852	99	283	0,282	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	07:30:12	3
7851	99	283	0,282	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	09:05:12	2
7850	99	280	0,279	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	08:05:13	1
7849	99	280	0,277	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	10:50:11	0
7852	99	279	0,278	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:00:13	3
7850	99	279	0,278	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	10:00:12	1
7849	99	275	0,274	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	08:55:14	0
7849	99	274	0,273	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	10:30:10	0
7849	99	274	0,271	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:30:12	0
7851	99	273	0,272	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	08:01:41	2
7851	99	271	0,270	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	08:20:12	2
7849	99	270	0,269	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:45:11	0
7849	99	270	0,269	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	08:30:13	0
7852	99	269	0,268	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	08:40:12	3
7850	99	269	0,268	cyclictest	26410	-21	kworker/u16:0+efi_rts_wq	11:35:12	1
7849	99	269	0,268	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	10:05:11	0
7851	99	268	0,267	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	12:30:13	2
7850	99	268	0,267	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	08:16:44	1
7852	99	267	0,266	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	11:10:12	3
7852	99	267	0,266	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	11:10:12	3
7849	99	267	0,266	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:50:11	0
7852	99	265	0,264	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	10:47:10	3
7852	99	263	0,261	cyclictest	26410	-21	kworker/u16:0+efi_rts_wq	12:00:11	3
7850	99	263	0,261	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	11:20:12	1
7852	99	262	0,261	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	10:15:11	3
7851	99	262	0,261	cyclictest	26410	-21	kworker/u16:0+efi_rts_wq	12:00:12	2
7850	99	262	0,261	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:52:22	1
7849	99	262	0,261	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:21:56	0
7852	99	261	0,260	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	07:45:12	3
7851	99	260	0,259	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	07:36:38	2
7849	99	258	0,257	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	08:25:14	0
7851	99	256	0,255	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	08:05:14	2
7852	99	254	0,253	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	08:00:13	3
7850	99	254	0,251	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:40:11	1
7850	99	252	0,251	cyclictest	26410	-21	kworker/u16:0+efi_rts_wq	12:35:12	1
7849	99	252	0,249	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:15:12	0
7849	99	251	0,250	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	12:12:26	0
7849	99	251	0,250	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	09:35:11	0
7849	99	251	0,250	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	08:35:14	0
7849	99	249	0,248	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	07:41:37	0
7850	99	248	0,247	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	07:55:15	1
7849	99	247	0,246	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	12:20:13	0
7849	99	247	0,246	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	09:10:13	0
7851	99	246	0,244	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:55:11	2
7850	99	246	0,245	cyclictest	26410	-21	kworker/u16:0+efi_rts_wq	11:45:11	1
7851	99	245	0,244	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:55:12	2
7851	99	244	0,243	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	12:20:13	2
7850	99	244	0,243	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	09:10:13	1
7849	99	244	0,243	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	08:41:49	0
7849	99	244	0,243	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	07:50:12	0
7850	99	243	0,242	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	10:42:09	1
7850	99	243	0,242	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	10:05:11	1
7849	99	243	0,242	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:12:15	0
7849	99	243	0,242	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:12:15	0
7851	99	239	0,238	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	10:15:11	2
7852	99	238	0,237	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	10:50:11	3
7851	99	238	0,237	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	10:07:03	2
7850	99	238	0,237	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	09:25:13	1
7851	99	236	0,234	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	10:45:12	2
7851	99	235	0,234	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	12:05:12	2
7849	99	235	0,234	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	10:45:11	0
7849	99	234	0,233	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	07:35:13	0
7849	99	233	0,232	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	11:20:12	0
7852	99	232	0,231	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	12:20:12	3
7852	99	232	0,230	cyclictest	26410	-21	kworker/u16:0+efi_rts_wq	11:35:12	3
7851	99	232	0,231	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	11:47:21	2
7852	99	231	0,230	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:42:00	3
7852	99	230	0,229	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	09:26:57	3
7850	99	230	0,229	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	08:46:50	1
7849	99	230	0,229	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	07:15:13	0
7849	99	229	0,228	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	09:15:11	0
7852	99	227	0,226	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	11:07:14	3
7851	99	227	0,226	cyclictest	7392	-21	kworker/u16:0+efi_rts_wq	11:22:16	2
7849	99	226	0,225	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	09:30:12	0
7852	99	225	0,224	cyclictest	30152	-21	kworker/u16:3+efi_rts_wq	07:15:13	3
7851	99	224	0,223	cyclictest	8938	-21	kworker/u16:1+efi_rts_wq	07:20:11	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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