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 Thu Jul 30, 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
28442	2	332	305,24	sleep1	0	-21	swapper/1	07:09:21	1
28213	2	332	325,5	sleep2	0	-21	swapper/2	07:06:25	2
28219	2	317	311,4	sleep3	0	-21	swapper/3	07:06:30	3
28211	2	314	306,5	sleep0	0	-21	swapper/0	07:06:23	0
28761	99	300	0,297	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:20:13	2
28759	99	300	0,299	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	10:18:07	0
28762	99	298	0,297	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	11:05:13	3
28762	99	298	0,297	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:35:13	3
28762	99	298	0,297	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:35:13	3
28761	99	298	0,296	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	08:50:13	2
28762	99	296	0,295	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	08:20:13	3
28760	99	296	0,295	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:45:11	1
28762	99	295	0,294	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:55:10	3
28762	99	294	0,293	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	11:35:11	3
28761	99	294	0,293	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:45:10	2
28760	99	294	0,293	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:00:12	1
28760	99	294	0,293	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	07:45:12	1
28759	99	294	0,293	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	09:55:13	0
28762	99	292	0,291	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:45:15	3
28759	99	291	0,290	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	12:05:12	0
28760	99	290	0,289	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:38:10	1
28759	99	290	0,289	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	08:25:11	0
28762	99	289	0,288	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	12:10:13	3
28760	99	289	0,288	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	07:10:11	1
28760	99	289	0,288	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	12:08:25	1
28759	99	289	0,287	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:20:10	0
28761	99	288	0,286	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	10:50:15	2
28761	99	287	0,286	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:10:12	2
28760	99	287	0,286	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:18:16	1
28759	99	287	0,286	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	12:03:25	0
28762	99	286	0,285	cyclictest	17004	-21	kworker/u16:2+efi_rts_wq	10:40:11	3
28759	99	286	0,285	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:47:50	0
28762	99	285	0,282	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:40:13	3
28760	99	284	0,283	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:20:12	1
28760	99	283	0,282	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	08:45:15	1
28759	99	283	0,282	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:00:10	0
28760	99	281	0,280	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	10:20:12	1
28759	99	281	0,279	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	09:50:13	0
28760	99	280	0,279	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:55:13	1
28762	99	279	0,278	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:27:47	3
28760	99	279	0,277	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	11:50:14	1
28761	99	278	0,277	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	09:30:13	2
28762	99	277	0,276	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:05:12	3
28762	99	277	0,276	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:45:10	3
28761	99	277	0,276	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	07:40:11	2
28760	99	277	0,276	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:00:10	1
28759	99	277	0,276	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	07:30:13	0
28760	99	274	0,272	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:25:11	1
28760	99	273	0,272	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:30:14	1
28760	99	273	0,272	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:15:12	1
28762	99	270	0,269	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	07:20:12	3
28759	99	270	0,269	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	08:00:13	0
28760	99	269	0,268	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	08:07:43	1
28759	99	268	0,267	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:55:11	0
28759	99	268	0,267	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:20:14	0
28759	99	266	0,265	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	09:05:12	0
28759	99	264	0,263	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	07:15:13	0
28761	99	263	0,261	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:35:12	2
28759	99	263	0,262	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	07:27:35	0
28759	99	262	0,261	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:10:14	0
28759	99	261	0,260	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:32:58	0
28759	99	259	0,258	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	12:30:13	0
28762	99	258	0,257	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	11:15:13	3
28760	99	258	0,257	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:50:15	1
28762	99	257	0,256	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:48:11	3
28761	99	257	0,256	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:00:10	2
28762	99	256	0,255	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	09:17:56	3
28762	99	255	0,254	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:53:23	3
28759	99	255	0,254	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	08:57:52	0
28759	99	254	0,253	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:45:15	0
28761	99	253	0,252	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:13:16	2
28761	99	248	0,247	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	10:15:10	2
28760	99	246	0,245	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:30:13	1
28761	99	245	0,244	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	10:10:13	2
28761	99	245	0,244	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	09:48:00	2
28762	99	244	0,243	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	10:33:09	3
28761	99	242	0,241	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	12:25:10	2
28760	99	242	0,241	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:55:10	1
28760	99	241	0,240	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	10:13:06	1
28761	99	240	0,237	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	12:35:11	2
28759	99	240	0,239	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	11:15:12	0
28761	99	239	0,238	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	07:55:13	2
28761	99	238	0,237	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:45:10	2
28760	99	238	0,237	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	07:20:12	1
28760	99	238	0,237	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	11:35:10	1
28760	99	237	0,236	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	10:08:05	1
28760	99	236	0,235	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	07:25:12	1
28760	99	235	0,234	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	12:15:12	1
28760	99	235	0,234	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	09:40:13	1
28759	99	235	0,234	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	08:20:13	0
28762	99	234	0,233	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	09:25:12	3
28760	99	234	0,233	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	11:40:14	1
28759	99	234	0,233	cyclictest	26726	-21	kworker/u16:0+efi_rts_wq	11:10:12	0
28762	99	233	0,232	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	12:25:10	3
28762	99	229	0,228	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:25:12	3
28760	99	228	0,227	cyclictest	27257	-21	kworker/u16:1+efi_rts_wq	07:32:36	1
28761	99	227	0,226	cyclictest	2294	-21	kworker/u16:3+efi_rts_wq	11:30:13	2
28759	99	227	0,226	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	10:10:13	0
28760	99	226	0,223	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	09:55:13	1
28761	99	225	0,224	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	07:35:14	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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