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 Mar 18, 2026 00:43:55)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
19806	2	324	309,5	sleep2	0	-21	swapper/2	19:08:41	2
19584	2	324	317,5	sleep1	0	-21	swapper/1	19:05:48	1
19780	2	322	315,5	sleep3	0	-21	swapper/3	19:08:22	3
19568	2	314	307,5	sleep0	0	-21	swapper/0	19:05:35	0
20176	99	312	0,311	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	20:00:13	2
20174	99	311	0,310	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:44:36	0
20177	99	310	0,307	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	23:00:13	3
20176	99	309	0,308	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	00:35:06	2
20175	99	309	0,308	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	21:00:14	1
20177	99	308	0,307	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	00:15:02	3
20175	99	308	0,307	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:40:12	1
20177	99	305	0,304	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:40:12	3
20175	99	305	0,304	cyclictest	8459	-21	kworker/u16:1+efi_rts_wq	23:24:54	1
20175	99	305	0,304	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	20:25:14	1
20175	99	304	0,303	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	20:45:12	1
20175	99	304	0,303	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	00:30:05	1
20177	99	303	0,302	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:05:14	3
20176	99	303	0,302	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	20:55:13	2
20175	99	303	0,302	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	20:40:10	1
20174	99	303	0,301	cyclictest	32161	-21	kworker/u16:1+efi_rts_wq	23:05:13	0
20175	99	302	0,301	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:10:13	1
20174	99	302	0,301	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	00:10:11	0
20174	99	302	0,301	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	00:10:11	0
20175	99	301	0,300	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	23:29:54	1
20177	99	300	0,299	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:15:11	3
20176	99	300	0,299	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	20:30:13	2
20177	99	298	0,297	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	20:15:13	3
20176	99	298	0,297	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:25:13	2
20175	99	298	0,297	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	20:05:12	1
20174	99	298	0,296	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:55:11	0
20175	99	297	0,296	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:55:13	1
20177	99	296	0,295	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	23:55:12	3
20177	99	296	0,294	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:25:13	3
20175	99	296	0,295	cyclictest	18435	-21	kworker/u16:2+efi_rts_wq	00:35:12	1
20175	99	296	0,295	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	19:20:12	1
20174	99	296	0,295	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:39:35	0
20175	99	295	0,294	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:34:34	1
20177	99	292	0,291	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	20:35:14	3
20175	99	292	0,291	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	20:55:13	1
20176	99	291	0,290	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	23:35:13	2
20177	99	290	0,289	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	00:30:15	3
20176	99	290	0,289	cyclictest	18435	-21	kworker/u16:2+efi_rts_wq	23:45:13	2
20176	99	290	0,289	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	23:30:13	2
20175	99	289	0,288	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:25:11	1
20177	99	288	0,287	cyclictest	18435	-21	kworker/u16:2+efi_rts_wq	00:05:11	3
20175	99	288	0,287	cyclictest	5530	-21	kworker/u16:2+efi_rts_wq	23:09:51	1
20174	99	288	0,287	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	19:30:11	0
20175	99	287	0,286	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:34:45	1
20177	99	284	0,283	cyclictest	5530	-21	kworker/u16:2+efi_rts_wq	23:15:13	3
20175	99	284	0,283	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	20:50:12	1
20176	99	282	0,281	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:00:14	2
20177	99	281	0,280	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	22:30:14	3
20177	99	281	0,279	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:35:12	3
20176	99	280	0,279	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:35:11	2
20174	99	280	0,279	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	23:19:53	0
20177	99	279	0,278	cyclictest	5530	-21	kworker/u16:2+efi_rts_wq	23:10:12	3
20175	99	279	0,278	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	22:10:14	1
20175	99	279	0,278	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	23:04:50	1
20174	99	278	0,277	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:15:13	0
20174	99	278	0,276	cyclictest	26606	-21	kworker/u16:0+efi_rts_wq	22:59:49	0
20177	99	277	0,276	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:34:11	3
20175	99	276	0,275	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:04:40	1
20174	99	276	0,275	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	20:25:14	0
20175	99	275	0,273	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	22:20:11	1
20177	99	273	0,272	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	20:10:13	3
20176	99	273	0,272	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	20:20:12	2
20175	99	273	0,272	cyclictest	21033	-21	kworker/u16:1+efi_rts_wq	22:39:46	1
20174	99	272	0,271	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:29:10	0
20177	99	271	0,270	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	19:54:15	3
20176	99	268	0,267	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	23:00:13	2
20174	99	268	0,267	cyclictest	5530	-21	kworker/u16:2+efi_rts_wq	23:10:12	0
20174	99	267	0,266	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	19:40:12	0
20177	99	265	0,264	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:10:12	3
20177	99	265	0,264	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	23:39:56	3
20177	99	263	0,262	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	19:35:12	3
20174	99	263	0,262	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:45:12	0
20175	99	259	0,258	cyclictest	18435	-21	kworker/u16:2+efi_rts_wq	00:25:12	1
20174	99	259	0,258	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:59:16	0
20177	99	256	0,255	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	22:55:11	3
20177	99	255	0,254	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	00:20:14	3
20176	99	253	0,252	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:55:12	2
20176	99	253	0,252	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	22:55:12	2
20174	99	253	0,252	cyclictest	18435	-21	kworker/u16:2+efi_rts_wq	23:50:12	0
20174	99	253	0,252	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	00:00:13	0
20175	99	251	0,250	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:25:12	1
20177	99	250	0,249	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	19:44:13	3
20176	99	248	0,247	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	23:54:59	2
20177	99	247	0,246	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:25:11	3
20176	99	246	0,245	cyclictest	24870	-21	kworker/u16:3+efi_rts_wq	19:15:01	2
20176	99	240	0,239	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	20:50:12	2
20174	99	240	0,239	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	22:50:11	0
20177	99	239	0,238	cyclictest	8459	-21	kworker/u16:1+efi_rts_wq	23:20:14	3
20176	99	239	0,238	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:35:11	2
20174	99	239	0,238	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	22:40:13	0
20177	99	238	0,237	cyclictest	26606	-21	kworker/u16:0+efi_rts_wq	22:54:48	3
20175	99	237	0,236	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:09:41	1
20177	99	232	0,231	cyclictest	17741	-21	kworker/u16:0+efi_rts_wq	21:45:13	3
20177	99	232	0,231	cyclictest	15935	-21	kworker/u16:0+efi_rts_wq	00:00:13	3
20174	99	232	0,231	cyclictest	23108	-21	kworker/u16:2+efi_rts_wq	22:05:14	0
20174	99	232	0,231	cyclictest	16604	-21	kworker/u16:3+efi_rts_wq	23:40:12	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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