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 Fri Dec 12, 2025 00:43:54)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
12109	2	318	303,5	sleep0	0	-21	swapper/0	19:05:59	0
12169	2	316	310,4	sleep3	0	-21	swapper/3	19:06:46	3
12330	2	315	308,4	sleep2	0	-21	swapper/2	19:08:50	2
12110	2	315	308,4	sleep1	0	-21	swapper/1	19:06:01	1
12689	99	303	0,302	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	21:20:17	2
12689	99	300	0,299	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	20:40:13	2
12688	99	300	0,299	cyclictest	8964	-21	kworker/u16:2+efi_rts_wq	00:20:39	1
12688	99	300	0,298	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	22:10:14	1
12690	99	299	0,298	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	23:30:14	3
12690	99	299	0,298	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	19:55:14	3
12690	99	298	0,297	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	22:15:15	3
12689	99	298	0,297	cyclictest	8964	-21	kworker/u16:2+efi_rts_wq	00:30:16	2
12689	99	297	0,296	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	19:59:54	2
12690	99	296	0,295	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:05:14	3
12689	99	295	0,294	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	20:50:16	2
12688	99	295	0,294	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	00:25:17	1
12690	99	294	0,292	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	22:55:14	3
12690	99	294	0,292	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:10:16	3
12690	99	293	0,292	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:40:00	3
12688	99	293	0,292	cyclictest	750	-21	kworker/u16:3+efi_rts_wq	22:40:22	1
12690	99	292	0,291	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	21:55:17	3
12687	99	292	0,291	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	21:15:15	0
12687	99	292	0,291	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:35:16	0
12689	99	291	0,290	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:00:26	2
12690	99	289	0,288	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	19:45:13	3
12690	99	287	0,286	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	19:15:14	3
12689	99	287	0,286	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	19:20:15	2
12688	99	287	0,286	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	21:50:13	1
12687	99	287	0,286	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	21:40:11	0
12687	99	287	0,286	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:20:16	0
12690	99	286	0,285	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:20:14	3
12688	99	286	0,285	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	23:40:12	1
12687	99	286	0,285	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	00:15:16	0
12687	99	286	0,285	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:25:15	0
12689	99	285	0,284	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	21:10:14	2
12689	99	284	0,283	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	21:05:05	2
12689	99	283	0,282	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	19:50:14	2
12689	99	282	0,281	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	21:35:11	2
12690	99	281	0,280	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	22:05:17	3
12690	99	281	0,280	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	22:05:17	3
12690	99	280	0,279	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	21:45:13	3
12690	99	280	0,279	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:50:03	3
12688	99	280	0,279	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	19:15:02	1
12688	99	280	0,279	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	21:25:14	1
12689	99	279	0,278	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	19:39:51	2
12689	99	276	0,275	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	22:25:13	2
12689	99	276	0,274	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	22:50:17	2
12688	99	276	0,274	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:50:13	1
12688	99	275	0,274	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:45:15	1
12689	99	274	0,273	cyclictest	8964	-21	kworker/u16:2+efi_rts_wq	00:05:15	2
12690	99	273	0,272	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	20:34:59	3
12687	99	273	0,271	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	23:40:12	0
12689	99	271	0,270	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:10:13	2
12689	99	270	0,269	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	00:15:39	2
12690	99	269	0,268	cyclictest	8964	-21	kworker/u16:2+efi_rts_wq	00:05:14	3
12690	99	269	0,267	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	21:10:14	3
12689	99	268	0,267	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	19:49:53	2
12688	99	266	0,265	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	21:55:15	1
12688	99	265	0,264	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	21:05:18	1
12688	99	265	0,264	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:55:13	1
12688	99	264	0,263	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	22:00:13	1
12689	99	263	0,262	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	22:10:16	2
12688	99	263	0,262	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	20:50:16	1
12689	99	260	0,259	cyclictest	750	-21	kworker/u16:3+efi_rts_wq	22:35:12	2
12690	99	258	0,257	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	00:35:17	3
12689	99	255	0,254	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:15:28	2
12688	99	255	0,254	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	21:30:13	1
12687	99	255	0,253	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:30:13	0
12689	99	254	0,253	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	21:50:16	2
12688	99	254	0,253	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	22:20:14	1
12690	99	253	0,252	cyclictest	750	-21	kworker/u16:3+efi_rts_wq	22:40:14	3
12689	99	253	0,252	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	20:09:55	2
12688	99	253	0,252	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	22:30:17	1
12688	99	253	0,252	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	19:29:48	1
12690	99	252	0,251	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:20:16	3
12687	99	249	0,248	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	19:19:46	0
12689	99	246	0,244	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	22:45:11	2
12689	99	245	0,244	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	23:45:13	2
12690	99	242	0,241	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:55:13	3
12688	99	242	0,241	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	23:45:13	1
12688	99	242	0,241	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	00:15:16	1
12688	99	241	0,240	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	00:10:15	1
12689	99	240	0,238	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:50:14	2
12690	99	239	0,236	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	20:15:12	3
12689	99	238	0,237	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	20:25:16	2
12689	99	237	0,236	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	00:10:15	2
12687	99	234	0,233	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	20:15:13	0
12687	99	233	0,231	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:10:15	0
12687	99	233	0,231	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:20:15	0
12688	99	231	0,230	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	19:24:47	1
12687	99	231	0,230	cyclictest	8964	-21	kworker/u16:2+efi_rts_wq	00:30:39	0
12690	99	230	0,229	cyclictest	10338	-21	kworker/u16:0+efi_rts_wq	20:05:15	3
12690	99	229	0,228	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	21:00:16	3
12690	99	229	0,227	cyclictest	8964	-21	kworker/u16:2+efi_rts_wq	00:00:35	3
12689	99	226	0,225	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:55:15	2
12689	99	221	0,220	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	23:25:30	2
12689	99	221	0,219	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	20:00:12	2
12687	99	221	0,220	cyclictest	8549	-21	kworker/u16:0+efi_rts_wq	00:00:14	0
12689	99	218	0,217	cyclictest	32031	-21	kworker/u16:2+efi_rts_wq	22:55:24	2
12687	99	218	0,217	cyclictest	13621	-21	kworker/u16:3+efi_rts_wq	23:00:16	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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