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 Dec 03, 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
20028	2	335	310,23	sleep2	0	-21	swapper/2	19:07:17	2
20009	2	317	303,5	sleep3	0	-21	swapper/3	19:07:03	3
19959	2	317	309,5	sleep0	0	-21	swapper/0	19:06:23	0
19898	2	314	307,5	sleep1	0	-21	swapper/1	19:05:36	1
20504	99	300	0,299	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	21:20:15	2
20505	99	299	0,296	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	22:25:12	3
20504	99	296	0,295	cyclictest	17973	-21	kworker/u16:2+efi_rts_wq	19:15:00	2
20505	99	295	0,294	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:35:15	3
20504	99	295	0,294	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	21:00:14	2
20503	99	295	0,294	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	19:40:15	1
20505	99	293	0,292	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:25:14	3
20503	99	293	0,292	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:05:13	1
20503	99	292	0,291	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	22:45:13	1
20505	99	291	0,290	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:30:13	3
20502	99	291	0,290	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	21:50:14	0
20503	99	289	0,288	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	20:50:14	1
20502	99	289	0,288	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:46:17	0
20505	99	288	0,287	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	00:15:14	3
20504	99	287	0,286	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:05:13	2
20503	99	287	0,286	cyclictest	17973	-21	kworker/u16:2+efi_rts_wq	19:10:14	1
20502	99	286	0,285	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	19:25:26	0
20503	99	284	0,283	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	22:55:14	1
20502	99	283	0,282	cyclictest	17973	-21	kworker/u16:2+efi_rts_wq	19:10:23	0
20502	99	282	0,281	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:15:12	0
20504	99	281	0,280	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:40:12	2
20503	99	281	0,280	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	22:35:16	1
20502	99	281	0,280	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:20:14	0
20503	99	280	0,278	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	00:01:19	1
20504	99	276	0,275	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	19:55:13	2
20504	99	274	0,273	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:11:10	2
20503	99	274	0,273	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	19:35:28	1
20503	99	273	0,272	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	23:00:14	1
20503	99	272	0,270	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:35:15	1
20504	99	271	0,270	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:26:12	2
20504	99	271	0,270	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:26:12	2
20503	99	271	0,270	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	22:15:15	1
20505	99	270	0,269	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	22:45:12	3
20505	99	270	0,269	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	20:10:36	3
20505	99	270	0,269	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:25:50	3
20504	99	270	0,269	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:35:14	2
20503	99	270	0,269	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:30:40	1
20504	99	269	0,268	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	21:35:13	2
20502	99	266	0,265	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	00:10:11	0
20503	99	265	0,264	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	00:11:21	1
20504	99	264	0,263	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	19:45:12	2
20504	99	264	0,263	cyclictest	17737	-21	kworker/u16:1+efi_rts_wq	00:20:12	2
20505	99	263	0,262	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	23:30:14	3
20503	99	263	0,262	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	21:45:12	1
20503	99	263	0,262	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	00:15:13	1
20503	99	262	0,261	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	23:06:09	1
20502	99	262	0,261	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	20:30:13	0
20502	99	262	0,261	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:25:14	0
20502	99	261	0,260	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:15:12	0
20502	99	259	0,258	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:40:12	0
20504	99	258	0,257	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	21:10:13	2
20503	99	258	0,257	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	22:10:58	1
20505	99	257	0,256	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	22:40:13	3
20502	99	257	0,256	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	21:30:52	0
20502	99	257	0,256	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:15:15	0
20505	99	255	0,254	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	23:01:08	3
20505	99	254	0,253	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	22:31:03	3
20505	99	253	0,252	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	22:00:13	3
20505	99	253	0,252	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:55:13	3
20504	99	253	0,252	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	23:45:13	2
20504	99	252	0,251	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	20:00:33	2
20502	99	252	0,251	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:35:14	0
20505	99	251	0,250	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	23:45:12	3
20505	99	251	0,249	cyclictest	17737	-21	kworker/u16:1+efi_rts_wq	00:20:13	3
20504	99	251	0,248	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	00:00:13	2
20502	99	249	0,248	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	00:16:22	0
20503	99	248	0,247	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:20:14	1
20505	99	247	0,246	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:55:13	3
20504	99	246	0,245	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:55:12	2
20504	99	245	0,244	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:25:14	2
20505	99	244	0,243	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	22:50:13	3
20504	99	242	0,241	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	19:40:15	2
20503	99	242	0,241	cyclictest	17737	-21	kworker/u16:1+efi_rts_wq	00:25:14	1
20502	99	242	0,241	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:05:13	0
20503	99	241	0,240	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:55:12	1
20503	99	241	0,240	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	20:35:42	1
20502	99	241	0,240	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:50:15	0
20503	99	240	0,239	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	19:45:12	1
20505	99	239	0,238	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	00:06:21	3
20505	99	238	0,235	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	20:45:16	3
20504	99	238	0,237	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	23:05:15	2
20502	99	238	0,237	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	19:50:15	0
20505	99	237	0,236	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:20:50	3
20504	99	236	0,234	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	22:36:03	2
20505	99	235	0,234	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:05:13	3
20503	99	235	0,234	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	00:05:15	1
20505	99	232	0,231	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	21:40:15	3
20502	99	232	0,231	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:25:12	0
20502	99	232	0,231	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:25:11	0
20502	99	232	0,231	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	22:51:06	0
20504	99	231	0,228	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	22:30:12	2
20505	99	230	0,229	cyclictest	17737	-21	kworker/u16:1+efi_rts_wq	00:35:14	3
20503	99	230	0,229	cyclictest	21799	-21	kworker/u16:0+efi_rts_wq	23:50:15	1
20505	99	228	0,227	cyclictest	30879	-21	kworker/u16:3+efi_rts_wq	20:00:14	3
20504	99	228	0,227	cyclictest	17737	-21	kworker/u16:1+efi_rts_wq	00:35:13	2
20505	99	226	0,225	cyclictest	17737	-21	kworker/u16:1+efi_rts_wq	00:26:24	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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