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 Aug 06, 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
522	2	330	307,5	sleep3	0	-21	swapper/3	19:05:27	3
763	2	316	309,5	sleep1	0	-21	swapper/1	19:08:09	1
577	2	316	309,5	sleep2	0	-21	swapper/2	19:06:10	2
519	2	315	307,5	sleep0	0	-21	swapper/0	19:05:23	0
1193	99	302	0,299	cyclictest	32089	-21	kworker/u16:0+efi_rts_wq	23:00:13	1
1193	99	301	0,298	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	19:20:11	1
1194	99	300	0,297	cyclictest	28432	-21	kworker/u16:1+efi_rts_wq	00:35:13	2
1195	99	298	0,297	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	19:23:41	3
1193	99	297	0,296	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	21:40:13	1
1193	99	296	0,295	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	21:55:17	1
1192	99	295	0,294	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	00:11:22	0
1192	99	295	0,292	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	19:20:12	0
1194	99	294	0,293	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	21:55:17	2
1194	99	293	0,292	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	22:05:13	2
1193	99	292	0,291	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	21:15:15	1
1193	99	292	0,291	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	20:10:13	1
1194	99	291	0,290	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	19:45:11	2
1193	99	290	0,289	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	21:00:11	1
1192	99	290	0,289	cyclictest	28432	-21	kworker/u16:1+efi_rts_wq	00:36:25	0
1192	99	289	0,288	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	21:05:15	0
1195	99	287	0,286	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	22:15:13	3
1195	99	287	0,286	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	22:15:12	3
1193	99	287	0,286	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:20:13	1
1195	99	286	0,285	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	19:18:41	3
1193	99	286	0,285	cyclictest	10150	-21	kworker/u16:3+efi_rts_wq	23:25:13	1
1192	99	286	0,285	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	23:10:13	0
1192	99	286	0,285	cyclictest	22021	-21	kworker/u16:1+efi_rts_wq	22:45:15	0
1194	99	282	0,281	cyclictest	32089	-21	kworker/u16:0+efi_rts_wq	23:14:22	2
1195	99	281	0,280	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	19:35:12	3
1192	99	281	0,280	cyclictest	10150	-21	kworker/u16:3+efi_rts_wq	23:45:11	0
1192	99	280	0,279	cyclictest	22021	-21	kworker/u16:1+efi_rts_wq	22:55:13	0
1195	99	279	0,278	cyclictest	10150	-21	kworker/u16:3+efi_rts_wq	23:45:12	3
1193	99	279	0,278	cyclictest	22021	-21	kworker/u16:1+efi_rts_wq	22:50:11	1
1195	99	278	0,277	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:05:15	3
1195	99	277	0,276	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:20:13	3
1194	99	275	0,274	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	19:10:13	2
1195	99	274	0,273	cyclictest	22021	-21	kworker/u16:1+efi_rts_wq	22:45:13	3
1193	99	274	0,272	cyclictest	32089	-21	kworker/u16:0+efi_rts_wq	23:09:23	1
1193	99	273	0,272	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	22:00:13	1
1193	99	272	0,271	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	23:55:12	1
1194	99	271	0,270	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:55:13	2
1195	99	269	0,268	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	00:20:13	3
1195	99	269	0,268	cyclictest	10150	-21	kworker/u16:3+efi_rts_wq	23:50:11	3
1193	99	269	0,267	cyclictest	28432	-21	kworker/u16:1+efi_rts_wq	00:00:14	1
1192	99	269	0,268	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	22:10:13	0
1195	99	268	0,267	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	20:50:12	3
1193	99	265	0,264	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	23:10:13	1
1195	99	263	0,262	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	22:00:13	3
1193	99	263	0,262	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:48:57	1
1193	99	263	0,262	cyclictest	10150	-21	kworker/u16:3+efi_rts_wq	23:40:11	1
1195	99	262	0,261	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	19:30:11	3
1195	99	262	0,261	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	21:35:12	3
1192	99	262	0,261	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	19:33:44	0
1195	99	261	0,259	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	20:40:13	3
1195	99	260	0,259	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	21:20:16	3
1195	99	260	0,258	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	22:40:12	3
1192	99	259	0,258	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	23:20:11	0
1193	99	258	0,257	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	00:30:15	1
1195	99	257	0,256	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	23:05:12	3
1195	99	257	0,256	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	00:10:10	3
1194	99	257	0,255	cyclictest	32089	-21	kworker/u16:0+efi_rts_wq	23:15:12	2
1192	99	256	0,254	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	21:25:15	0
1195	99	254	0,253	cyclictest	28432	-21	kworker/u16:1+efi_rts_wq	00:05:17	3
1195	99	252	0,251	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:15:13	3
1194	99	251	0,250	cyclictest	22021	-21	kworker/u16:1+efi_rts_wq	22:55:13	2
1193	99	251	0,250	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	22:49:19	1
1193	99	250	0,248	cyclictest	22021	-21	kworker/u16:1+efi_rts_wq	22:35:13	1
1192	99	248	0,247	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	00:30:14	0
1193	99	247	0,246	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	20:50:12	1
1192	99	247	0,246	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	21:24:03	0
1195	99	246	0,245	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:30:13	3
1193	99	244	0,243	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	19:53:47	1
1192	99	244	0,243	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:25:13	0
1193	99	242	0,241	cyclictest	28432	-21	kworker/u16:1+efi_rts_wq	00:25:11	1
1195	99	241	0,240	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	00:31:24	3
1192	99	241	0,240	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:35:12	0
1195	99	240	0,238	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	23:30:12	3
1194	99	240	0,239	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	22:54:19	2
1193	99	239	0,238	cyclictest	28432	-21	kworker/u16:1+efi_rts_wq	00:15:12	1
1192	99	239	0,238	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	19:40:17	0
1195	99	238	0,237	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	21:50:13	3
1194	99	238	0,235	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	19:15:02	2
1195	99	237	0,236	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	19:50:15	3
1193	99	237	0,236	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	19:15:14	1
1195	99	235	0,234	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	21:04:01	3
1194	99	234	0,232	cyclictest	32089	-21	kworker/u16:0+efi_rts_wq	23:00:12	2
1192	99	234	0,233	cyclictest	22021	-21	kworker/u16:1+efi_rts_wq	22:50:11	0
1192	99	233	0,232	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	19:28:42	0
1192	99	232	0,231	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	21:45:14	0
1193	99	231	0,230	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	21:25:15	1
1194	99	230	0,229	cyclictest	10150	-21	kworker/u16:3+efi_rts_wq	23:25:13	2
1193	99	230	0,229	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	19:55:12	1
1192	99	230	0,229	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	21:50:13	0
1195	99	229	0,228	cyclictest	24944	-21	kworker/u16:0+efi_rts_wq	22:14:12	3
1195	99	228	0,227	cyclictest	28432	-21	kworker/u16:1+efi_rts_wq	00:26:23	3
1194	99	228	0,227	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	21:49:08	2
1195	99	227	0,226	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	22:20:14	3
1195	99	223	0,222	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	23:35:14	3
1194	99	223	0,221	cyclictest	24503	-21	kworker/u16:2+efi_rts_wq	23:05:12	2
1192	99	223	0,222	cyclictest	8708	-21	kworker/u16:3+efi_rts_wq	20:59:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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