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 Thu Aug 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
11677	2	334	307,24	sleep3	0	-21	swapper/3	19:06:54	3
11654	2	321	314,5	sleep2	0	-21	swapper/2	19:06:37	2
11869	2	318	304,5	sleep1	0	-21	swapper/1	19:09:20	1
11923	2	314	306,5	sleep0	0	-21	swapper/0	19:10:01	0
12188	99	297	0,296	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:55:11	2
12186	99	297	0,296	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	23:05:12	0
12186	99	297	0,296	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	00:25:13	0
12187	99	292	0,291	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	00:25:12	1
12186	99	291	0,290	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	20:45:12	0
12186	99	291	0,290	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	20:35:12	0
12187	99	290	0,289	cyclictest	30875	-21	kworker/u16:3+efi_rts_wq	00:31:20	1
12186	99	290	0,289	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	19:40:12	0
12189	99	289	0,288	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:25:14	3
12189	99	289	0,288	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:25:14	3
12186	99	289	0,288	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	19:10:12	0
12188	99	288	0,287	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	21:00:11	2
12187	99	288	0,287	cyclictest	32509	-21	kworker/u16:1+efi_rts_wq	23:25:13	1
12186	99	288	0,287	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:50:13	0
12189	99	287	0,284	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:55:13	3
12187	99	287	0,286	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:15:12	1
12187	99	286	0,285	cyclictest	30875	-21	kworker/u16:3+efi_rts_wq	23:56:12	1
12187	99	285	0,284	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:20:12	1
12189	99	284	0,283	cyclictest	30875	-21	kworker/u16:3+efi_rts_wq	00:10:11	3
12187	99	284	0,283	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	20:45:11	1
12186	99	284	0,283	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	19:45:15	0
12189	99	282	0,281	cyclictest	32509	-21	kworker/u16:1+efi_rts_wq	22:50:11	3
12188	99	282	0,281	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	19:10:12	2
12189	99	281	0,280	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	19:35:12	3
12186	99	281	0,280	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:30:15	0
12186	99	280	0,279	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	19:20:11	0
12186	99	280	0,279	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	23:35:11	0
12189	99	279	0,278	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:20:12	3
12187	99	279	0,278	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:30:13	1
12187	99	279	0,278	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	00:20:14	1
12186	99	279	0,278	cyclictest	32509	-21	kworker/u16:1+efi_rts_wq	23:04:27	0
12189	99	278	0,277	cyclictest	32509	-21	kworker/u16:1+efi_rts_wq	22:45:13	3
12189	99	278	0,277	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:30:12	3
12189	99	278	0,277	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	19:15:12	3
12188	99	278	0,277	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:35:13	2
12189	99	277	0,276	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	23:55:13	3
12187	99	274	0,273	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:50:11	1
12187	99	274	0,272	cyclictest	32509	-21	kworker/u16:1+efi_rts_wq	22:50:11	1
12188	99	273	0,272	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	20:40:11	2
12187	99	273	0,272	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:25:12	1
12188	99	272	0,270	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	20:20:13	2
12187	99	271	0,270	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	21:40:12	1
12188	99	268	0,267	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:15:13	2
12187	99	268	0,267	cyclictest	32509	-21	kworker/u16:1+efi_rts_wq	23:30:13	1
12188	99	265	0,264	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	19:50:12	2
12187	99	265	0,264	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:33:58	1
12188	99	264	0,263	cyclictest	30875	-21	kworker/u16:3+efi_rts_wq	00:16:17	2
12186	99	263	0,262	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:05:12	0
12186	99	263	0,262	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:24:09	0
12187	99	262	0,261	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	22:15:10	1
12189	99	261	0,260	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:35:12	3
12186	99	261	0,259	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	21:05:11	0
12186	99	260	0,259	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	23:10:12	0
12186	99	260	0,259	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	23:45:11	0
12188	99	259	0,258	cyclictest	32509	-21	kworker/u16:1+efi_rts_wq	23:24:30	2
12189	99	258	0,257	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	19:25:13	3
12187	99	257	0,256	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	21:45:13	1
12187	99	257	0,256	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:55:13	1
12188	99	250	0,249	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:35:12	2
12189	99	249	0,248	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	23:35:11	3
12188	99	249	0,248	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	23:39:33	2
12188	99	248	0,247	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:30:13	2
12186	99	248	0,247	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	19:15:13	0
12187	99	247	0,246	cyclictest	30875	-21	kworker/u16:3+efi_rts_wq	00:00:13	1
12187	99	246	0,245	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:00:12	1
12188	99	245	0,243	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	23:45:11	2
12189	99	244	0,243	cyclictest	30875	-21	kworker/u16:3+efi_rts_wq	00:30:13	3
12188	99	244	0,243	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:00:12	2
12188	99	243	0,242	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	23:55:13	2
12187	99	242	0,241	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:10:11	1
12189	99	241	0,239	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	23:00:11	3
12187	99	241	0,240	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:14:06	1
12188	99	240	0,239	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	21:20:13	2
12189	99	239	0,238	cyclictest	3895	-21	kworker/u16:2+efi_rts_wq	22:40:12	3
12188	99	239	0,238	cyclictest	30875	-21	kworker/u16:3+efi_rts_wq	00:05:16	2
12188	99	239	0,238	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	23:10:11	2
12186	99	237	0,236	cyclictest	32509	-21	kworker/u16:1+efi_rts_wq	23:34:33	0
12186	99	237	0,236	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	20:18:55	0
12189	99	236	0,235	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	00:15:13	3
12187	99	235	0,234	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	23:46:11	1
12186	99	235	0,234	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:10:11	0
12187	99	232	0,231	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	19:13:42	1
12187	99	231	0,230	cyclictest	3895	-21	kworker/u16:2+efi_rts_wq	22:40:12	1
12187	99	228	0,227	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	19:58:52	1
12187	99	225	0,224	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	00:35:13	1
12186	99	225	0,224	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	22:25:12	0
12187	99	224	0,223	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	20:05:13	1
12188	99	223	0,222	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	20:59:04	2
12188	99	223	0,222	cyclictest	30875	-21	kworker/u16:3+efi_rts_wq	00:00:12	2
12187	99	223	0,222	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	22:00:14	1
12186	99	223	0,222	cyclictest	24493	-21	kworker/u16:0+efi_rts_wq	23:51:13	0
12189	99	222	0,221	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	19:40:12	3
12186	99	222	0,221	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	21:50:11	0
12188	99	221	0,219	cyclictest	30889	-21	kworker/u16:0+efi_rts_wq	21:05:11	2
12188	99	220	0,219	cyclictest	26006	-21	kworker/u16:3+efi_rts_wq	23:09:27	2
12186	99	220	0,219	cyclictest	32509	-21	kworker/u16:1+efi_rts_wq	22:50:11	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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