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 Jun 17, 2026 00:43:55)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
28046	2	335	312,5	sleep3	0	-21	swapper/3	19:06:41	3
28272	2	333	312,4	sleep2	0	-21	swapper/2	19:09:37	2
28244	2	314	307,5	sleep1	0	-21	swapper/1	19:09:16	1
27991	2	313	306,5	sleep0	0	-21	swapper/0	19:05:59	0
28572	99	301	0,299	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:45:13	3
28571	99	300	0,297	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	20:25:13	2
28570	99	299	0,298	cyclictest	27156	-21	kworker/u16:1+efi_rts_wq	19:50:12	1
28569	99	299	0,298	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	21:25:14	0
28572	99	298	0,297	cyclictest	18850	-21	kworker/u16:1+efi_rts_wq	22:45:13	3
28571	99	298	0,297	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	22:05:15	2
28572	99	296	0,295	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	20:50:13	3
28569	99	296	0,295	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	22:55:14	0
28569	99	296	0,295	cyclictest	18850	-21	kworker/u16:1+efi_rts_wq	23:10:12	0
28572	99	293	0,292	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	20:20:12	3
28570	99	293	0,292	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	22:05:20	1
28572	99	291	0,290	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	22:00:13	3
28571	99	291	0,290	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:45:12	2
28570	99	286	0,285	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:35:14	1
28569	99	285	0,284	cyclictest	27156	-21	kworker/u16:1+efi_rts_wq	19:45:13	0
28569	99	284	0,283	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:30:38	0
28570	99	281	0,280	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	23:20:35	1
28570	99	281	0,280	cyclictest	12608	-21	kworker/u16:2+efi_rts_wq	19:15:13	1
28572	99	280	0,279	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	23:40:12	3
28570	99	280	0,279	cyclictest	16704	-21	kworker/u16:2+efi_rts_wq	22:45:29	1
28569	99	279	0,278	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	22:15:15	0
28569	99	278	0,277	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	22:00:13	0
28572	99	277	0,276	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	20:30:13	3
28571	99	277	0,274	cyclictest	27156	-21	kworker/u16:1+efi_rts_wq	19:55:13	2
28569	99	276	0,275	cyclictest	22569	-21	kworker/u16:1+efi_rts_wq	00:25:13	0
28571	99	275	0,274	cyclictest	12608	-21	kworker/u16:2+efi_rts_wq	19:49:49	2
28570	99	275	0,274	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	20:40:04	1
28572	99	273	0,272	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	23:25:13	3
28571	99	273	0,271	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	22:30:13	2
28572	99	272	0,271	cyclictest	12608	-21	kworker/u16:2+efi_rts_wq	19:20:10	3
28571	99	272	0,271	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:05:08	2
28570	99	272	0,271	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:00:10	1
28572	99	270	0,269	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	22:20:13	3
28572	99	269	0,268	cyclictest	27156	-21	kworker/u16:1+efi_rts_wq	19:25:14	3
28570	99	269	0,268	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	22:10:10	1
28572	99	267	0,266	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	20:45:05	3
28572	99	267	0,266	cyclictest	22569	-21	kworker/u16:1+efi_rts_wq	00:15:47	3
28571	99	267	0,266	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:15:12	2
28571	99	267	0,266	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:55:12	2
28569	99	267	0,266	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	20:30:13	0
28572	99	266	0,265	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:55:43	3
28572	99	266	0,265	cyclictest	22569	-21	kworker/u16:1+efi_rts_wq	00:30:13	3
28570	99	266	0,265	cyclictest	27156	-21	kworker/u16:1+efi_rts_wq	19:30:13	1
28572	99	265	0,264	cyclictest	18850	-21	kworker/u16:1+efi_rts_wq	23:10:33	3
28570	99	265	0,264	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:30:13	1
28571	99	264	0,263	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:50:42	2
28570	99	264	0,263	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	20:35:01	1
28572	99	262	0,261	cyclictest	18850	-21	kworker/u16:1+efi_rts_wq	23:05:14	3
28570	99	261	0,260	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	22:25:14	1
28569	99	260	0,259	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	21:05:13	0
28572	99	259	0,258	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	21:25:14	3
28572	99	259	0,258	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	20:40:14	3
28569	99	259	0,258	cyclictest	22569	-21	kworker/u16:1+efi_rts_wq	00:30:13	0
28572	99	258	0,257	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	00:20:13	3
28572	99	258	0,256	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	20:35:13	3
28571	99	257	0,256	cyclictest	16704	-21	kworker/u16:2+efi_rts_wq	22:40:28	2
28571	99	256	0,255	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	21:35:13	2
28572	99	255	0,254	cyclictest	18850	-21	kworker/u16:1+efi_rts_wq	23:00:15	3
28570	99	253	0,252	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	20:20:11	1
28569	99	253	0,252	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:50:12	0
28569	99	253	0,252	cyclictest	22569	-21	kworker/u16:1+efi_rts_wq	00:15:13	0
28571	99	251	0,250	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:20:13	2
28569	99	251	0,250	cyclictest	27156	-21	kworker/u16:1+efi_rts_wq	20:14:57	0
28569	99	249	0,248	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	23:25:13	0
28571	99	247	0,246	cyclictest	12608	-21	kworker/u16:2+efi_rts_wq	19:44:49	2
28572	99	246	0,245	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:00:10	3
28571	99	245	0,244	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	20:50:13	2
28571	99	245	0,242	cyclictest	22569	-21	kworker/u16:1+efi_rts_wq	00:25:13	2
28570	99	245	0,244	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:35:39	1
28570	99	245	0,244	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:15:14	1
28571	99	241	0,237	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	20:40:14	2
28569	99	240	0,239	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	20:20:12	0
28572	99	239	0,238	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	23:35:12	3
28570	99	239	0,238	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	21:10:12	1
28569	99	236	0,235	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	20:45:12	0
28569	99	236	0,235	cyclictest	12608	-21	kworker/u16:2+efi_rts_wq	19:40:13	0
28572	99	235	0,234	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	20:55:13	3
28570	99	233	0,232	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:45:13	1
28571	99	232	0,231	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	23:40:40	2
28571	99	231	0,230	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	20:24:59	2
28571	99	231	0,230	cyclictest	12608	-21	kworker/u16:2+efi_rts_wq	19:10:13	2
28570	99	231	0,230	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	22:00:19	1
28572	99	230	0,229	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	22:30:25	3
28571	99	230	0,228	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:45:12	2
28570	99	230	0,229	cyclictest	16704	-21	kworker/u16:2+efi_rts_wq	22:40:14	1
28569	99	230	0,229	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:55:13	0
28572	99	229	0,228	cyclictest	12608	-21	kworker/u16:2+efi_rts_wq	20:05:14	3
28570	99	229	0,228	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	23:30:12	1
28570	99	229	0,228	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	00:10:12	1
28572	99	228	0,227	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	21:55:18	3
28571	99	227	0,226	cyclictest	21686	-21	kworker/u16:3+efi_rts_wq	21:40:12	2
28571	99	226	0,225	cyclictest	28973	-21	kworker/u16:3+efi_rts_wq	22:55:13	2
28569	99	225	0,224	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	22:10:10	0
28570	99	224	0,223	cyclictest	12608	-21	kworker/u16:2+efi_rts_wq	20:15:12	1
28572	99	223	0,222	cyclictest	22569	-21	kworker/u16:1+efi_rts_wq	00:05:16	3
28569	99	222	0,221	cyclictest	25462	-21	kworker/u16:0+efi_rts_wq	00:20:14	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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