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 Sun Nov 16, 2025 12:43:55)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
13986	2	319	304,5	sleep3	0	-21	swapper/3	07:09:06	3
13860	2	319	304,5	sleep2	0	-21	swapper/2	07:07:29	2
12220	2	318	304,5	sleep0	0	-21	swapper/0	07:05:06	0
13799	2	313	305,5	sleep1	0	-21	swapper/1	07:06:43	1
14325	99	304	0,302	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	11:30:14	3
14323	99	303	0,300	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:50:13	1
14324	99	299	0,298	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	07:50:13	2
14324	99	298	0,297	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:12:15	2
14322	99	297	0,296	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	11:20:13	0
14325	99	296	0,295	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	10:25:14	3
14324	99	295	0,294	cyclictest	29032	-21	kworker/u16:1+efi_rts_wq	11:40:14	2
14323	99	294	0,293	cyclictest	8747	-21	kworker/u16:0+efi_rts_wq	11:00:13	1
14323	99	294	0,293	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:05:15	1
14322	99	292	0,291	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:35:14	0
14325	99	289	0,288	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:07:33	3
14323	99	288	0,286	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:50:14	1
14322	99	287	0,286	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:55:14	0
14323	99	286	0,285	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:25:16	1
14325	99	284	0,283	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:05:17	3
14322	99	284	0,283	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:32:38	0
14325	99	282	0,281	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	07:15:16	3
14323	99	282	0,280	cyclictest	14916	-21	kworker/u16:1+efi_rts_wq	12:30:14	1
14325	99	281	0,280	cyclictest	8747	-21	kworker/u16:0+efi_rts_wq	10:45:13	3
14323	99	281	0,280	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:17:24	1
14322	99	279	0,278	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	07:20:14	0
14323	99	278	0,277	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:10:14	1
14322	99	278	0,277	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:22:15	0
14323	99	277	0,274	cyclictest	14916	-21	kworker/u16:1+efi_rts_wq	12:25:17	1
14322	99	277	0,276	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:00:16	0
14322	99	277	0,276	cyclictest	11778	-21	kworker/u16:1+efi_rts_wq	10:55:14	0
14322	99	276	0,274	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:05:16	0
14323	99	274	0,273	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:55:13	1
14325	99	273	0,272	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:15:13	3
14325	99	273	0,272	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	07:12:04	3
14324	99	273	0,271	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	12:35:16	2
14323	99	273	0,272	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	11:20:13	1
14322	99	273	0,272	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:20:14	0
14322	99	273	0,272	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:30:15	0
14325	99	272	0,271	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:00:15	3
14325	99	272	0,271	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:35:14	3
14323	99	272	0,271	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	08:25:14	1
14323	99	272	0,270	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	12:05:15	1
14325	99	271	0,270	cyclictest	17017	-21	kworker/u16:2+efi_rts_wq	11:05:14	3
14322	99	271	0,269	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	08:10:14	0
14324	99	270	0,269	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:50:13	2
14322	99	270	0,269	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	10:10:14	0
14324	99	266	0,265	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:20:14	2
14323	99	266	0,265	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	10:25:15	1
14323	99	266	0,265	cyclictest	17017	-21	kworker/u16:2+efi_rts_wq	11:05:15	1
14322	99	266	0,265	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	12:17:56	0
14322	99	266	0,265	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	08:15:13	0
14325	99	264	0,263	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	09:32:27	3
14322	99	264	0,262	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:40:16	0
14325	99	262	0,261	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:40:14	3
14323	99	262	0,261	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:30:16	1
14325	99	261	0,260	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	09:35:13	3
14325	99	261	0,259	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	12:00:13	3
14324	99	260	0,259	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:50:14	2
14324	99	257	0,256	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:20:15	2
14323	99	256	0,255	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	08:15:13	1
14323	99	256	0,255	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	07:47:09	1
14323	99	256	0,253	cyclictest	14916	-21	kworker/u16:1+efi_rts_wq	12:22:57	1
14322	99	256	0,255	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:20:14	0
14322	99	255	0,254	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	07:55:14	0
14324	99	254	0,253	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	09:02:23	2
14323	99	253	0,251	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	10:10:14	1
14322	99	253	0,252	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:40:14	0
14324	99	252	0,251	cyclictest	3926	-21	kworker/u16:0+efi_rts_wq	11:47:52	2
14324	99	251	0,250	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:02:32	2
14322	99	250	0,247	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	11:50:14	0
14325	99	249	0,248	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:50:14	3
14325	99	249	0,248	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:15:15	3
14322	99	248	0,247	cyclictest	8747	-21	kworker/u16:0+efi_rts_wq	11:15:14	0
14325	99	247	0,245	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	11:45:14	3
14322	99	245	0,244	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	10:00:14	0
14323	99	244	0,243	cyclictest	8747	-21	kworker/u16:0+efi_rts_wq	10:45:15	1
14323	99	243	0,241	cyclictest	29032	-21	kworker/u16:1+efi_rts_wq	11:27:48	1
14322	99	243	0,242	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	07:25:13	0
14322	99	242	0,241	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:30:13	0
14322	99	242	0,241	cyclictest	14916	-21	kworker/u16:1+efi_rts_wq	12:37:59	0
14323	99	241	0,240	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:42:40	1
14325	99	240	0,239	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	12:10:14	3
14325	99	240	0,239	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	11:50:14	3
14325	99	240	0,239	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	07:32:07	3
14325	99	240	0,238	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	11:55:14	3
14323	99	238	0,237	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	09:20:14	1
14323	99	238	0,237	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	07:30:16	1
14325	99	237	0,236	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:55:13	3
14325	99	237	0,235	cyclictest	8747	-21	kworker/u16:0+efi_rts_wq	11:10:13	3
14325	99	237	0,235	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	07:45:14	3
14323	99	237	0,236	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	08:42:19	1
14324	99	235	0,234	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	07:45:14	2
14323	99	235	0,234	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:30:16	1
14322	99	235	0,234	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	10:40:14	0
14325	99	229	0,228	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	07:40:16	3
14325	99	228	0,227	cyclictest	8747	-21	kworker/u16:0+efi_rts_wq	10:55:14	3
14325	99	226	0,225	cyclictest	20329	-21	kworker/u16:3+efi_rts_wq	08:25:14	3
14323	99	226	0,225	cyclictest	3926	-21	kworker/u16:0+efi_rts_wq	11:52:52	1
14325	99	224	0,223	cyclictest	7788	-21	kworker/u16:0+efi_rts_wq	10:12:34	3
14323	99	217	0,216	cyclictest	24659	-21	kworker/u16:3+efi_rts_wq	11:30:14	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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