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 Sep 02, 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
13440	2	322	312,8	sleep3	0	-21	swapper/3	19:08:24	3
13279	2	318	304,5	sleep2	0	-21	swapper/2	19:06:19	2
13361	2	316	304,10	sleep1	0	-21	swapper/1	19:07:23	1
13203	2	315	303,9	sleep0	0	-21	swapper/0	19:05:22	0
13833	99	300	0,299	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	20:14:27	2
13834	99	298	0,297	cyclictest	24442	-21	kworker/u16:0+efi_rts_wq	00:25:11	3
13834	99	298	0,297	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	19:20:13	3
13832	99	296	0,295	cyclictest	24442	-21	kworker/u16:0+efi_rts_wq	00:30:12	1
13834	99	295	0,293	cyclictest	24442	-21	kworker/u16:0+efi_rts_wq	23:20:00	3
13833	99	295	0,294	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	21:20:12	2
13833	99	294	0,293	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:30:02	2
13834	99	293	0,292	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	21:40:12	3
13832	99	293	0,292	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:45:12	1
13834	99	292	0,291	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	20:05:12	3
13834	99	292	0,291	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	20:10:14	3
13833	99	292	0,291	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	19:55:16	2
13834	99	291	0,290	cyclictest	8564	-21	kworker/u16:2+efi_rts_wq	22:50:13	3
13829	99	291	0,290	cyclictest	24442	-21	kworker/u16:0+efi_rts_wq	00:10:14	0
13829	99	290	0,289	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	21:24:42	0
13832	99	289	0,288	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	19:40:11	1
13834	99	288	0,287	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	21:45:15	3
13833	99	288	0,287	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	00:30:14	2
13832	99	288	0,287	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	22:55:12	1
13829	99	288	0,287	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	20:35:12	0
13829	99	288	0,287	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	20:30:14	0
13834	99	286	0,285	cyclictest	8564	-21	kworker/u16:2+efi_rts_wq	23:15:01	3
13834	99	286	0,285	cyclictest	1934	-21	kworker/u16:0+efi_rts_wq	22:40:13	3
13832	99	286	0,285	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	19:39:22	1
13833	99	285	0,284	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	21:30:12	2
13832	99	284	0,283	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	22:15:13	1
13829	99	284	0,283	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:25:13	0
13832	99	283	0,281	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	20:25:14	1
13829	99	283	0,282	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	20:55:14	0
13829	99	282	0,281	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	22:05:12	0
13834	99	281	0,280	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	20:40:13	3
13829	99	280	0,279	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:30:13	0
13829	99	280	0,279	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	21:30:13	0
13829	99	280	0,278	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	22:55:13	0
13832	99	279	0,278	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	21:25:11	1
13829	99	278	0,277	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	20:00:13	0
13829	99	277	0,276	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	20:49:35	0
13834	99	275	0,274	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	19:35:13	3
13834	99	274	0,273	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	20:50:12	3
13834	99	274	0,273	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:34:53	3
13832	99	273	0,272	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	20:15:14	1
13832	99	273	0,272	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	20:15:13	1
13832	99	273	0,272	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:00:14	1
13829	99	273	0,272	cyclictest	24442	-21	kworker/u16:0+efi_rts_wq	23:40:13	0
13834	99	272	0,271	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	20:59:38	3
13834	99	272	0,271	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:25:13	3
13834	99	272	0,271	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	20:20:14	3
13833	99	271	0,270	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:35:12	2
13834	99	270	0,269	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	19:25:13	3
13833	99	264	0,263	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:35:13	2
13834	99	263	0,262	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	21:55:13	3
13832	99	263	0,262	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:35:13	1
13829	99	263	0,262	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	19:50:13	0
13832	99	262	0,261	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	00:00:13	1
13834	99	261	0,259	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	19:10:14	3
13829	99	261	0,260	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:10:00	0
13832	99	260	0,259	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:10:13	1
13833	99	259	0,258	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	22:45:14	2
13832	99	259	0,258	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:25:12	1
13834	99	257	0,256	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:00:11	3
13834	99	256	0,255	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	19:55:17	3
13829	99	256	0,255	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	22:45:15	0
13832	99	255	0,254	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	19:30:13	1
13829	99	255	0,254	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	21:15:15	0
13829	99	255	0,254	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	21:05:11	0
13834	99	253	0,252	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	21:35:12	3
13834	99	253	0,252	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:05:12	3
13833	99	252	0,251	cyclictest	8564	-21	kworker/u16:2+efi_rts_wq	23:05:13	2
13834	99	251	0,250	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	00:15:14	3
13829	99	250	0,249	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:20:13	0
13834	99	248	0,247	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	19:15:13	3
13832	99	247	0,246	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	00:25:12	1
13832	99	247	0,246	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	19:19:18	1
13832	99	245	0,244	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	20:10:15	1
13829	99	244	0,242	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:15:13	0
13833	99	243	0,242	cyclictest	24442	-21	kworker/u16:0+efi_rts_wq	23:55:12	2
13832	99	243	0,242	cyclictest	24442	-21	kworker/u16:0+efi_rts_wq	00:20:13	1
13832	99	242	0,241	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	22:45:15	1
13829	99	242	0,241	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	00:15:13	0
13832	99	239	0,238	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	20:09:26	1
13832	99	237	0,236	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	21:54:47	1
13832	99	235	0,234	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:24:52	1
13834	99	231	0,230	cyclictest	24442	-21	kworker/u16:0+efi_rts_wq	00:05:13	3
13833	99	229	0,228	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	00:25:12	2
13834	99	227	0,226	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	00:35:13	3
13829	99	227	0,226	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	21:55:13	0
13834	99	226	0,225	cyclictest	24442	-21	kworker/u16:0+efi_rts_wq	00:20:12	3
13833	99	224	0,223	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:10:14	2
13833	99	222	0,221	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:10:12	2
13832	99	222	0,221	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:14:50	1
13834	99	218	0,215	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	22:10:14	3
13832	99	217	0,216	cyclictest	12528	-21	kworker/u16:1+efi_rts_wq	21:45:13	1
13832	99	216	0,215	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	00:10:09	1
13832	99	214	0,213	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	23:55:06	1
13829	99	212	0,211	cyclictest	21578	-21	kworker/u16:0+efi_rts_wq	19:45:12	0
13834	99	210	0,208	cyclictest	17756	-21	kworker/u16:3+efi_rts_wq	22:39:54	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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