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 05, 2025 00:43:53)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
29404	2	333	311,4	sleep1	0	-21	swapper/1	19:05:38	1
29498	2	331	302,5	sleep3	0	-21	swapper/3	19:06:52	3
29595	2	319	303,6	sleep0	0	-21	swapper/0	19:08:06	0
29582	2	319	304,5	sleep2	0	-21	swapper/2	19:07:55	2
30118	99	301	0,299	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	19:45:15	2
30116	99	300	0,299	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:00:06	1
30116	99	300	0,298	cyclictest	5085	-21	kworker/u16:0+efi_rts_wq	23:15:14	1
30116	99	297	0,296	cyclictest	16740	-21	kworker/u16:1+efi_rts_wq	23:40:13	1
30116	99	296	0,295	cyclictest	16740	-21	kworker/u16:1+efi_rts_wq	23:50:12	1
30115	99	296	0,295	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:55:15	0
30118	99	295	0,294	cyclictest	5085	-21	kworker/u16:0+efi_rts_wq	23:25:14	2
30118	99	294	0,292	cyclictest	16740	-21	kworker/u16:1+efi_rts_wq	00:00:15	2
30115	99	294	0,293	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:25:15	0
30118	99	293	0,292	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:10:15	2
30116	99	293	0,292	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	22:00:13	1
30116	99	293	0,292	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	19:34:51	1
30115	99	293	0,292	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:30:19	0
30118	99	292	0,291	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:50:16	2
30118	99	291	0,289	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:40:12	2
30116	99	291	0,290	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:45:13	1
30118	99	289	0,288	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:50:15	2
30115	99	289	0,288	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:15:11	0
30115	99	288	0,287	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:45:14	0
30118	99	287	0,286	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:30:18	2
30116	99	287	0,286	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	19:20:11	1
30121	99	286	0,285	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:50:14	3
30115	99	286	0,285	cyclictest	2557	-21	kworker/u16:1+efi_rts_wq	22:55:28	0
30115	99	286	0,285	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	21:45:14	0
30115	99	286	0,284	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:35:14	0
30116	99	285	0,284	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:25:22	1
30116	99	283	0,281	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:55:16	1
30116	99	282	0,281	cyclictest	5085	-21	kworker/u16:0+efi_rts_wq	23:25:32	1
30116	99	282	0,281	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	19:55:15	1
30116	99	282	0,280	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	23:00:13	1
30115	99	282	0,281	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:25:14	0
30116	99	279	0,278	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	00:30:45	1
30115	99	279	0,278	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:55:16	0
30116	99	276	0,275	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	21:35:13	1
30115	99	276	0,273	cyclictest	16740	-21	kworker/u16:1+efi_rts_wq	23:50:13	0
30121	99	275	0,274	cyclictest	5085	-21	kworker/u16:0+efi_rts_wq	23:25:14	3
30118	99	275	0,274	cyclictest	16740	-21	kworker/u16:1+efi_rts_wq	00:15:13	2
30116	99	274	0,273	cyclictest	16740	-21	kworker/u16:1+efi_rts_wq	00:05:13	1
30118	99	273	0,272	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	23:05:16	2
30116	99	273	0,272	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:10:16	1
30118	99	271	0,270	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	00:20:13	2
30116	99	270	0,269	cyclictest	2557	-21	kworker/u16:1+efi_rts_wq	22:45:14	1
30118	99	269	0,268	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	19:15:12	2
30118	99	268	0,267	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:20:10	2
30115	99	266	0,265	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:40:14	0
30115	99	264	0,263	cyclictest	16740	-21	kworker/u16:1+efi_rts_wq	00:05:12	0
30118	99	263	0,262	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:05:16	2
30116	99	263	0,262	cyclictest	5085	-21	kworker/u16:0+efi_rts_wq	23:30:32	1
30118	99	262	0,261	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	21:25:12	2
30118	99	261	0,260	cyclictest	2557	-21	kworker/u16:1+efi_rts_wq	22:20:15	2
30118	99	260	0,259	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:50:15	2
30115	99	260	0,259	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	22:00:13	0
30121	99	259	0,258	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	23:55:16	3
30121	99	259	0,258	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:55:15	3
30121	99	259	0,258	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	19:35:12	3
30116	99	259	0,258	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	19:50:12	1
30118	99	258	0,257	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	19:55:15	2
30116	99	258	0,257	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	21:10:12	1
30118	99	257	0,256	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:00:15	2
30118	99	257	0,256	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:00:14	2
30118	99	256	0,255	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:45:17	2
30118	99	256	0,255	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:30:20	2
30118	99	256	0,255	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:14:59	2
30118	99	254	0,253	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:05:14	2
30115	99	254	0,253	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:15:13	0
30115	99	253	0,252	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:50:04	0
30118	99	251	0,250	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:25:13	2
30118	99	250	0,248	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:35:14	2
30115	99	248	0,247	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:50:26	0
30115	99	247	0,246	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:30:19	0
30118	99	246	0,245	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:15:15	2
30116	99	246	0,245	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	19:40:12	1
30116	99	245	0,244	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:15:15	1
30116	99	245	0,244	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:00:16	1
30116	99	245	0,244	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:00:15	1
30118	99	242	0,241	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	19:25:12	2
30116	99	242	0,241	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	21:50:12	1
30115	99	240	0,239	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	19:39:53	0
30118	99	237	0,235	cyclictest	5085	-21	kworker/u16:0+efi_rts_wq	23:30:14	2
30116	99	237	0,236	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	00:20:14	1
30115	99	235	0,234	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	19:14:46	0
30116	99	234	0,233	cyclictest	5085	-21	kworker/u16:0+efi_rts_wq	23:20:13	1
30116	99	232	0,231	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:30:00	1
30115	99	232	0,231	cyclictest	16740	-21	kworker/u16:1+efi_rts_wq	00:25:17	0
30116	99	231	0,230	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	20:20:14	1
30116	99	229	0,228	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	20:35:13	1
30115	99	229	0,228	cyclictest	3607	-21	kworker/u16:2+efi_rts_wq	19:55:15	0
30115	99	229	0,227	cyclictest	2557	-21	kworker/u16:1+efi_rts_wq	22:40:15	0
30116	99	228	0,226	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	22:05:14	1
30121	99	227	0,226	cyclictest	16740	-21	kworker/u16:1+efi_rts_wq	00:00:38	3
30118	99	227	0,226	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	00:30:15	2
30121	99	226	0,225	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	19:29:49	3
30115	99	226	0,225	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	00:20:43	0
30116	99	225	0,222	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	00:35:17	1
30118	99	223	0,222	cyclictest	24200	-21	kworker/u16:0+efi_rts_wq	19:10:13	2
30116	99	223	0,222	cyclictest	7146	-21	kworker/u16:3+efi_rts_wq	23:55:15	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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