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 Tue Jul 21, 2026 00:43:55)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
27287	2	333	305,25	sleep3	0	-21	swapper/3	19:05:10	3
28825	2	315	302,10	sleep2	0	-21	swapper/2	19:06:13	2
28779	2	313	307,4	sleep1	0	-21	swapper/1	19:05:36	1
27284	2	313	307,4	sleep0	0	-21	swapper/0	19:05:06	0
29386	99	303	0,302	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	23:00:42	1
29388	99	300	0,298	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:50:52	3
29388	99	298	0,297	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	22:20:34	3
29385	99	297	0,296	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	20:35:14	0
29386	99	296	0,295	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	22:15:13	1
29388	99	295	0,294	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	20:20:09	3
29387	99	294	0,293	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	20:45:11	2
29385	99	294	0,293	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:10:19	0
29385	99	294	0,293	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	19:45:12	0
29387	99	293	0,292	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	00:15:58	2
29386	99	293	0,292	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	00:05:13	1
29386	99	293	0,292	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	00:25:13	1
29385	99	293	0,292	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:15:13	0
29388	99	291	0,290	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	21:35:14	3
29386	99	289	0,288	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	20:10:13	1
29385	99	289	0,288	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	22:20:14	0
29388	99	288	0,287	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	22:40:13	3
29386	99	288	0,287	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	19:30:14	1
29386	99	288	0,287	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	20:50:13	1
29385	99	288	0,287	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	20:00:13	0
29386	99	287	0,286	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	00:20:59	1
29386	99	287	0,286	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	20:30:11	1
29385	99	287	0,286	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	20:55:13	0
29387	99	286	0,285	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:15:14	2
29386	99	285	0,284	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	00:30:14	1
29388	99	284	0,283	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	22:55:15	3
29387	99	284	0,283	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	22:45:14	2
29385	99	284	0,283	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	00:10:13	0
29388	99	283	0,282	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	21:25:14	3
29385	99	283	0,282	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	19:40:14	0
29385	99	283	0,282	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	00:35:12	0
29388	99	282	0,281	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	22:25:14	3
29388	99	282	0,281	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	22:25:13	3
29388	99	282	0,280	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	22:30:12	3
29385	99	282	0,281	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	19:14:58	0
29385	99	280	0,279	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	23:45:50	0
29385	99	280	0,279	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:35:12	0
29385	99	279	0,278	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	22:10:14	0
29386	99	278	0,277	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	00:10:13	1
29385	99	278	0,277	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:30:13	0
29388	99	277	0,276	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	00:26:00	3
29386	99	277	0,276	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	21:05:13	1
29388	99	276	0,275	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:10:13	3
29388	99	276	0,275	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	22:50:13	3
29387	99	273	0,272	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	19:55:05	2
29387	99	273	0,272	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	19:15:14	2
29388	99	272	0,271	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	00:00:11	3
29386	99	272	0,271	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	20:35:14	1
29388	99	271	0,270	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:20:13	3
29385	99	271	0,270	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	20:25:09	0
29385	99	271	0,270	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:40:12	0
29385	99	270	0,269	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	23:15:45	0
29388	99	269	0,268	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	22:35:37	3
29385	99	269	0,268	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	22:05:12	0
29385	99	269	0,268	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	00:20:15	0
29386	99	268	0,267	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	22:00:13	1
29385	99	268	0,267	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:45:13	0
29385	99	267	0,266	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	21:00:12	0
29387	99	266	0,265	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	20:25:13	2
29387	99	262	0,261	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	23:10:43	2
29388	99	261	0,260	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	20:30:11	3
29388	99	261	0,260	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	19:35:14	3
29386	99	260	0,259	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	19:50:15	1
29386	99	260	0,259	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:55:12	1
29385	99	260	0,259	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	20:05:13	0
29388	99	259	0,258	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	20:00:05	3
29386	99	259	0,257	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:20:21	1
29386	99	258	0,257	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	20:45:11	1
29385	99	257	0,254	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	21:50:14	0
29386	99	254	0,253	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	23:45:14	1
29386	99	254	0,253	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	19:40:03	1
29386	99	252	0,251	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:25:14	1
29386	99	252	0,251	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	22:50:40	1
29385	99	252	0,251	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	00:05:12	0
29388	99	250	0,249	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	20:05:14	3
29387	99	250	0,249	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	22:10:14	2
29387	99	248	0,247	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:25:14	2
29388	99	246	0,245	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	00:30:13	3
29387	99	246	0,245	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	19:20:13	2
29386	99	246	0,245	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:15:14	1
29385	99	246	0,245	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	21:25:14	0
29387	99	243	0,242	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:20:14	2
29388	99	237	0,236	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	19:15:14	3
29386	99	236	0,235	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	22:45:13	1
29385	99	236	0,235	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	21:05:13	0
29388	99	235	0,234	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	23:35:13	3
29388	99	234	0,233	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:55:13	3
29386	99	233	0,232	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:40:15	1
29387	99	232	0,231	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	20:40:13	2
29388	99	230	0,228	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	23:05:14	3
29388	99	228	0,227	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	23:00:14	3
29386	99	226	0,225	cyclictest	16903	-21	kworker/u16:1+efi_rts_wq	00:00:12	1
29388	99	225	0,224	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	23:10:12	3
29386	99	224	0,223	cyclictest	8072	-21	kworker/u16:0+efi_rts_wq	21:55:13	1
29388	99	219	0,218	cyclictest	4005	-21	kworker/u16:2+efi_rts_wq	23:30:48	3
29386	99	219	0,218	cyclictest	13943	-21	kworker/u16:3+efi_rts_wq	19:25:15	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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