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 Sat Jul 25, 2026 12:43:56)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
11942	2	331	305,23	sleep1	0	-21	swapper/1	07:09:03	1
11812	2	318	311,5	sleep3	0	-21	swapper/3	07:07:24	3
11742	2	316	308,5	sleep0	0	-21	swapper/0	07:06:30	0
11806	2	315	308,5	sleep2	0	-21	swapper/2	07:07:19	2
12282	99	305	0,304	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	10:33:09	1
12282	99	302	0,301	cyclictest	1137	-21	kworker/u16:3+efi_rts_wq	10:55:12	1
12282	99	300	0,299	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:20:14	1
12282	99	299	0,298	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	07:15:12	1
12284	99	298	0,297	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:05:15	3
12282	99	298	0,297	cyclictest	1137	-21	kworker/u16:3+efi_rts_wq	10:50:17	1
12284	99	297	0,296	cyclictest	5375	-21	kworker/u16:0+efi_rts_wq	12:35:16	3
12284	99	297	0,296	cyclictest	5375	-21	kworker/u16:0+efi_rts_wq	12:05:16	3
12284	99	297	0,296	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	08:00:13	3
12281	99	297	0,296	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	09:10:15	0
12282	99	296	0,295	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:55:14	1
12283	99	294	0,293	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	10:20:13	2
12283	99	294	0,293	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	10:15:13	2
12282	99	294	0,293	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	11:00:14	1
12283	99	293	0,292	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:37:56	2
12282	99	293	0,292	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	07:37:35	1
12284	99	292	0,291	cyclictest	713	-21	kworker/u16:3+efi_rts_wq	12:10:14	3
12284	99	292	0,291	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	11:30:14	3
12284	99	291	0,290	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	07:17:30	3
12282	99	291	0,290	cyclictest	713	-21	kworker/u16:3+efi_rts_wq	11:40:15	1
12284	99	290	0,289	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	09:10:15	3
12283	99	290	0,289	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	07:50:13	2
12281	99	290	0,289	cyclictest	713	-21	kworker/u16:3+efi_rts_wq	12:03:27	0
12282	99	288	0,287	cyclictest	713	-21	kworker/u16:3+efi_rts_wq	12:30:14	1
12282	99	288	0,287	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:30:15	1
12281	99	288	0,287	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	08:10:14	0
12284	99	287	0,286	cyclictest	21837	-21	kworker/u16:3+efi_rts_wq	11:20:12	3
12284	99	287	0,286	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	10:10:14	3
12283	99	287	0,286	cyclictest	1137	-21	kworker/u16:3+efi_rts_wq	10:50:16	2
12282	99	287	0,286	cyclictest	25764	-21	kworker/u16:2+efi_rts_wq	11:25:11	1
12284	99	286	0,285	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:20:13	3
12283	99	285	0,284	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	09:45:14	2
12282	99	283	0,282	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	09:12:52	1
12282	99	282	0,281	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	08:40:14	1
12284	99	280	0,279	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	09:00:13	3
12282	99	280	0,279	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	11:38:21	1
12282	99	279	0,278	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	08:05:16	1
12284	99	278	0,277	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	08:50:14	3
12284	99	277	0,276	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	07:35:13	3
12284	99	276	0,275	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	08:20:14	3
12284	99	276	0,273	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	10:05:15	3
12282	99	275	0,274	cyclictest	30811	-21	kworker/u16:1+efi_rts_wq	11:45:12	1
12282	99	275	0,274	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	09:25:13	1
12284	99	273	0,272	cyclictest	713	-21	kworker/u16:3+efi_rts_wq	12:00:12	3
12283	99	272	0,271	cyclictest	1137	-21	kworker/u16:3+efi_rts_wq	10:45:15	2
12283	99	271	0,270	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	08:25:14	2
12283	99	271	0,270	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	07:10:14	2
12284	99	270	0,269	cyclictest	5375	-21	kworker/u16:0+efi_rts_wq	11:55:14	3
12283	99	269	0,268	cyclictest	3088	-21	kworker/u16:2+efi_rts_wq	11:48:23	2
12281	99	269	0,268	cyclictest	713	-21	kworker/u16:3+efi_rts_wq	12:10:15	0
12281	99	269	0,268	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	10:53:12	0
12283	99	268	0,267	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	10:43:09	2
12281	99	268	0,267	cyclictest	5375	-21	kworker/u16:0+efi_rts_wq	12:08:27	0
12281	99	268	0,267	cyclictest	5375	-21	kworker/u16:0+efi_rts_wq	11:58:25	0
12281	99	268	0,266	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	11:35:14	0
12281	99	267	0,266	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	07:30:13	0
12281	99	267	0,266	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	11:18:16	0
12284	99	266	0,265	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	10:30:14	3
12281	99	266	0,263	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	10:05:14	0
12283	99	265	0,264	cyclictest	25764	-21	kworker/u16:2+efi_rts_wq	11:33:20	2
12284	99	262	0,261	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	08:45:13	3
12282	99	260	0,259	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	07:55:14	1
12281	99	258	0,257	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	09:40:14	0
12281	99	258	0,257	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	09:27:54	0
12284	99	257	0,256	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	11:35:15	3
12282	99	254	0,253	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	10:00:15	1
12283	99	252	0,251	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	07:45:14	2
12281	99	252	0,251	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	09:50:15	0
12282	99	250	0,248	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	11:10:16	1
12284	99	249	0,247	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	07:20:14	3
12282	99	249	0,247	cyclictest	11208	-21	kworker/u16:1+efi_rts_wq	11:05:12	1
12284	99	248	0,247	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:55:15	3
12284	99	247	0,246	cyclictest	5375	-21	kworker/u16:0+efi_rts_wq	12:15:13	3
12284	99	247	0,246	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:30:14	3
12284	99	247	0,246	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	10:20:13	3
12284	99	247	0,245	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	08:40:13	3
12284	99	246	0,245	cyclictest	5375	-21	kworker/u16:0+efi_rts_wq	12:25:15	3
12283	99	246	0,245	cyclictest	713	-21	kworker/u16:3+efi_rts_wq	12:20:16	2
12283	99	245	0,244	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:58:01	2
12283	99	245	0,244	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	08:57:50	2
12282	99	244	0,243	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	08:27:43	1
12281	99	244	0,243	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	08:47:47	0
12284	99	243	0,242	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	09:50:14	3
12284	99	242	0,241	cyclictest	713	-21	kworker/u16:3+efi_rts_wq	12:20:15	3
12281	99	242	0,241	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:35:13	0
12282	99	239	0,238	cyclictest	5375	-21	kworker/u16:0+efi_rts_wq	12:28:31	1
12281	99	239	0,238	cyclictest	29892	-21	kworker/u16:3+efi_rts_wq	07:40:13	0
12281	99	238	0,237	cyclictest	10575	-21	kworker/u16:0+efi_rts_wq	10:00:15	0
12282	99	237	0,236	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	10:40:15	1
12284	99	235	0,233	cyclictest	11208	-21	kworker/u16:1+efi_rts_wq	11:05:12	3
12281	99	234	0,233	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	09:15:13	0
12282	99	232	0,231	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	08:00:12	1
12283	99	231	0,230	cyclictest	713	-21	kworker/u16:3+efi_rts_wq	12:00:12	2
12283	99	231	0,230	cyclictest	25764	-21	kworker/u16:2+efi_rts_wq	11:25:11	2
12282	99	230	0,229	cyclictest	21837	-21	kworker/u16:3+efi_rts_wq	11:20:13	1
12284	99	228	0,226	cyclictest	1361	-21	kworker/u16:1+efi_rts_wq	10:40:14	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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