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 Jul 30, 2026 00:43:56)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3802	2	334	308,24	sleep2	0	-21	swapper/2	19:09:09	2
3788	2	319	312,4	sleep3	0	-21	swapper/3	19:08:58	3
3625	2	318	307,9	sleep0	0	-21	swapper/0	19:06:54	0
2035	2	315	308,4	sleep1	0	-21	swapper/1	19:05:12	1
4134	99	306	0,303	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	22:00:12	2
4135	99	303	0,302	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:34:29	3
4133	99	301	0,300	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	23:10:13	1
4135	99	299	0,298	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:10:11	3
4135	99	298	0,297	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:30:12	3
4132	99	296	0,295	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:50:14	0
4135	99	295	0,294	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:35:15	3
4135	99	295	0,294	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:15:15	3
4133	99	295	0,294	cyclictest	22844	-21	kworker/u16:3+efi_rts_wq	00:00:15	1
4133	99	295	0,294	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:30:12	1
4133	99	294	0,293	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:39:07	1
4132	99	293	0,292	cyclictest	4067	-21	kworker/u16:2+efi_rts_wq	00:30:14	0
4133	99	292	0,291	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	00:35:13	1
4134	99	291	0,290	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:15:10	2
4133	99	291	0,290	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:05:14	1
4135	99	289	0,288	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	21:54:08	3
4135	99	288	0,287	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:10:12	3
4134	99	288	0,287	cyclictest	22844	-21	kworker/u16:3+efi_rts_wq	23:50:13	2
4132	99	288	0,287	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:45:13	0
4132	99	287	0,286	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:55:11	0
4134	99	286	0,285	cyclictest	22844	-21	kworker/u16:3+efi_rts_wq	00:00:16	2
4132	99	286	0,285	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:10:13	0
4133	99	285	0,284	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	20:08:50	1
4132	99	285	0,284	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:14:25	0
4132	99	285	0,284	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:45:13	0
4135	99	283	0,282	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:45:14	3
4135	99	281	0,280	cyclictest	526	-21	kworker/u16:3+efi_rts_wq	22:50:13	3
4134	99	281	0,280	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	23:10:14	2
4134	99	280	0,279	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	21:40:13	2
4132	99	280	0,279	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:15:00	0
4135	99	279	0,278	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	20:33:54	3
4134	99	279	0,277	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:00:11	2
4135	99	278	0,277	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:18:52	3
4134	99	278	0,277	cyclictest	4067	-21	kworker/u16:2+efi_rts_wq	00:10:14	2
4134	99	278	0,277	cyclictest	23726	-21	kworker/u16:1+efi_rts_wq	22:30:12	2
4132	99	278	0,277	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	22:15:12	0
4132	99	278	0,276	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:30:11	0
4135	99	277	0,276	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:53:46	3
4133	99	277	0,276	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:00:12	1
4132	99	277	0,276	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:35:14	0
4135	99	276	0,275	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	21:10:13	3
4135	99	276	0,274	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:15:12	3
4132	99	276	0,275	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	20:25:12	0
4134	99	275	0,274	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:20:12	2
4134	99	273	0,270	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	00:05:16	2
4133	99	269	0,268	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:15:01	1
4134	99	268	0,267	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	19:55:13	2
4135	99	267	0,266	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	22:24:15	3
4133	99	266	0,265	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	19:20:13	1
4133	99	265	0,262	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	19:40:13	1
4135	99	263	0,262	cyclictest	4067	-21	kworker/u16:2+efi_rts_wq	00:20:13	3
4134	99	263	0,262	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:55:15	2
4135	99	261	0,260	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	20:05:13	3
4135	99	261	0,260	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	22:19:14	3
4132	99	261	0,260	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	00:25:11	0
4132	99	261	0,260	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	19:25:12	0
4135	99	260	0,259	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	20:28:54	3
4134	99	259	0,258	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	00:15:13	2
4132	99	259	0,258	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	19:43:46	0
4132	99	259	0,258	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:45:11	0
4133	99	258	0,257	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	22:25:13	1
4135	99	255	0,254	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:20:13	3
4133	99	255	0,254	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	00:15:13	1
4133	99	254	0,253	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:25:12	1
4132	99	253	0,252	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	23:35:14	0
4133	99	252	0,251	cyclictest	22844	-21	kworker/u16:3+efi_rts_wq	23:40:10	1
4134	99	251	0,250	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:15:12	2
4135	99	249	0,248	cyclictest	23726	-21	kworker/u16:1+efi_rts_wq	22:30:12	3
4133	99	247	0,246	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	21:20:12	1
4132	99	247	0,246	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	22:55:17	0
4133	99	246	0,245	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:49:09	1
4134	99	243	0,242	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:09:24	2
4133	99	242	0,241	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:45:11	1
4132	99	242	0,241	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:00:14	0
4132	99	242	0,241	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	23:25:12	0
4132	99	241	0,240	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	22:10:13	0
4135	99	239	0,238	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	22:45:12	3
4135	99	238	0,235	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	19:55:13	3
4134	99	238	0,237	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	20:05:14	2
4133	99	238	0,237	cyclictest	15430	-21	kworker/u16:2+efi_rts_wq	22:35:14	1
4134	99	237	0,236	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:09:02	2
4133	99	236	0,235	cyclictest	32067	-21	kworker/u16:0+efi_rts_wq	00:06:06	1
4135	99	230	0,229	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	21:40:12	3
4133	99	228	0,227	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	19:38:44	1
4135	99	224	0,223	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:20:12	3
4134	99	224	0,223	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	21:30:12	2
4135	99	216	0,215	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:15:10	3
4132	99	216	0,215	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:45:12	0
4135	99	214	0,213	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	22:05:11	3
4133	99	214	0,213	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	20:30:12	1
4134	99	213	0,212	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	20:50:12	2
4135	99	209	0,208	cyclictest	3145	-21	kworker/u16:1+efi_rts_wq	23:46:02	3
4134	99	209	0,208	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	19:20:12	2
4133	99	209	0,208	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	20:59:00	1
4133	99	208	0,207	cyclictest	11604	-21	kworker/u16:0+efi_rts_wq	20:50:12	1
4134	99	207	0,206	cyclictest	11257	-21	kworker/u16:3+efi_rts_wq	22:20:13	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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