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 13, 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
21921	2	329	303,24	sleep2	0	-21	swapper/2	19:08:30	2
21912	2	322	315,5	sleep3	0	-21	swapper/3	19:08:22	3
21718	2	318	311,5	sleep1	0	-21	swapper/1	19:05:52	1
21852	2	315	307,5	sleep0	0	-21	swapper/0	19:07:35	0
22302	99	302	0,300	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	20:15:13	0
22302	99	301	0,300	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:05:12	0
22305	99	300	0,297	cyclictest	12573	-21	kworker/u16:1+efi_rts_wq	00:25:14	3
22303	99	300	0,299	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	19:55:12	1
22302	99	300	0,299	cyclictest	20875	-21	kworker/u16:1+efi_rts_wq	23:00:14	0
22305	99	299	0,297	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	22:30:11	3
22305	99	299	0,297	cyclictest	12573	-21	kworker/u16:1+efi_rts_wq	00:05:12	3
22302	99	295	0,294	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	19:20:13	0
22305	99	294	0,293	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	23:45:12	3
22304	99	294	0,293	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:50:12	2
22305	99	293	0,292	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	21:10:16	3
22305	99	293	0,292	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	00:10:15	3
22305	99	293	0,290	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	20:05:14	3
22305	99	292	0,291	cyclictest	26033	-21	kworker/u16:3+efi_rts_wq	23:30:12	3
22305	99	292	0,291	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	00:21:04	3
22303	99	292	0,291	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	19:35:13	1
22305	99	291	0,290	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	22:15:12	3
22304	99	291	0,290	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	22:15:41	2
22304	99	291	0,290	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	20:50:13	2
22305	99	290	0,289	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	19:55:12	3
22303	99	290	0,289	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	19:30:13	1
22304	99	288	0,287	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	22:45:13	2
22304	99	288	0,287	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:25:12	2
22304	99	287	0,284	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:15:13	2
22305	99	286	0,285	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	20:35:11	3
22305	99	284	0,283	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	00:00:13	3
22304	99	284	0,283	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	19:10:12	2
22302	99	284	0,283	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	19:25:06	0
22305	99	283	0,282	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	19:50:12	3
22305	99	282	0,281	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	00:31:06	3
22304	99	282	0,281	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	20:15:13	2
22303	99	281	0,280	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	21:40:12	1
22302	99	281	0,280	cyclictest	31029	-21	kworker/u16:0+efi_rts_wq	23:25:13	0
22304	99	276	0,275	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	21:25:14	2
22302	99	276	0,275	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	22:15:12	0
22304	99	274	0,273	cyclictest	26033	-21	kworker/u16:3+efi_rts_wq	23:10:14	2
22304	99	273	0,272	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	23:55:12	2
22304	99	272	0,271	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	20:10:14	2
22304	99	272	0,271	cyclictest	26033	-21	kworker/u16:3+efi_rts_wq	23:35:13	2
22304	99	272	0,271	cyclictest	12573	-21	kworker/u16:1+efi_rts_wq	00:15:13	2
22302	99	272	0,271	cyclictest	12573	-21	kworker/u16:1+efi_rts_wq	00:25:13	0
22305	99	271	0,270	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	19:25:14	3
22305	99	271	0,269	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	23:05:12	3
22303	99	271	0,270	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	20:00:12	1
22305	99	270	0,269	cyclictest	26033	-21	kworker/u16:3+efi_rts_wq	23:25:54	3
22302	99	270	0,269	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	20:20:12	0
22303	99	269	0,268	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	19:40:10	1
22303	99	269	0,268	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	00:30:13	1
22302	99	268	0,267	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:25:44	0
22305	99	267	0,266	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:20:11	3
22305	99	266	0,265	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:20:12	3
22305	99	266	0,265	cyclictest	12573	-21	kworker/u16:1+efi_rts_wq	23:51:00	3
22305	99	266	0,264	cyclictest	20875	-21	kworker/u16:1+efi_rts_wq	23:00:14	3
22304	99	266	0,265	cyclictest	26033	-21	kworker/u16:3+efi_rts_wq	23:30:55	2
22305	99	264	0,263	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	19:40:09	3
22303	99	261	0,260	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	23:45:12	1
22305	99	260	0,259	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	22:05:12	3
22302	99	260	0,259	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	20:55:12	0
22302	99	259	0,258	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:45:13	0
22305	99	258	0,257	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:55:13	3
22305	99	257	0,256	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:10:12	3
22302	99	253	0,252	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	20:25:13	0
22305	99	252	0,251	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:50:35	3
22305	99	252	0,251	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:50:13	3
22303	99	250	0,249	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	20:30:12	1
22303	99	249	0,248	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	19:10:03	1
22304	99	248	0,247	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:30:14	2
22303	99	248	0,247	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:35:12	1
22305	99	245	0,244	cyclictest	26033	-21	kworker/u16:3+efi_rts_wq	23:35:13	3
22305	99	245	0,244	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	21:00:13	3
22304	99	245	0,244	cyclictest	31029	-21	kworker/u16:0+efi_rts_wq	23:20:14	2
22303	99	245	0,244	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:50:13	1
22303	99	245	0,244	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	00:10:15	1
22302	99	244	0,243	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	22:30:44	0
22304	99	243	0,242	cyclictest	12573	-21	kworker/u16:1+efi_rts_wq	00:35:13	2
22302	99	243	0,242	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	19:45:11	0
22305	99	241	0,240	cyclictest	31029	-21	kworker/u16:0+efi_rts_wq	23:20:13	3
22305	99	240	0,239	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	19:15:13	3
22304	99	240	0,239	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:55:14	2
22304	99	240	0,239	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:55:14	2
22302	99	240	0,239	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:35:33	0
22305	99	239	0,238	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:15:28	3
22302	99	236	0,235	cyclictest	12573	-21	kworker/u16:1+efi_rts_wq	00:35:13	0
22305	99	234	0,233	cyclictest	26033	-21	kworker/u16:3+efi_rts_wq	23:10:51	3
22303	99	232	0,231	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	20:50:14	1
22302	99	230	0,229	cyclictest	10236	-21	kworker/u16:0+efi_rts_wq	23:56:00	0
22303	99	228	0,227	cyclictest	26033	-21	kworker/u16:3+efi_rts_wq	23:40:13	1
22302	99	227	0,226	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:55:14	0
22302	99	227	0,226	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:55:14	0
22302	99	227	0,226	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	20:45:13	0
22305	99	226	0,224	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	22:40:14	3
22302	99	226	0,225	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	20:30:11	0
22302	99	224	0,223	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	20:40:14	0
22302	99	223	0,221	cyclictest	26033	-21	kworker/u16:3+efi_rts_wq	23:20:53	0
22305	99	222	0,221	cyclictest	19847	-21	kworker/u16:0+efi_rts_wq	22:45:47	3
22305	99	220	0,219	cyclictest	27416	-21	kworker/u16:2+efi_rts_wq	21:30:14	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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