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 12:43:54)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2633	2	339	313,23	sleep0	0	-21	swapper/0	07:05:59	0
2719	2	329	302,24	sleep1	0	-21	swapper/1	07:07:04	1
3214	99	320	0,317	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	10:10:13	3
2780	2	320	313,4	sleep3	0	-21	swapper/3	07:07:51	3
2740	2	319	305,5	sleep2	0	-21	swapper/2	07:07:22	2
3214	99	316	0,313	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	10:30:11	3
3212	99	313	0,312	cyclictest	13696	-21	kworker/u16:0+efi_rts_wq	10:55:11	1
3214	99	312	0,311	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	09:00:12	3
3214	99	312	0,310	cyclictest	21234	-21	kworker/u16:3+efi_rts_wq	11:15:12	3
3213	99	312	0,310	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	10:35:12	2
3212	99	312	0,310	cyclictest	1373	-21	kworker/u16:1+efi_rts_wq	11:00:12	1
3212	99	312	0,310	cyclictest	1373	-21	kworker/u16:1+efi_rts_wq	11:00:12	1
3213	99	311	0,309	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	11:30:11	2
3213	99	308	0,307	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	10:15:16	2
3212	99	308	0,307	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	08:45:13	1
3212	99	308	0,307	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	08:20:11	1
3211	99	308	0,307	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	08:15:13	0
3211	99	308	0,307	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	10:00:12	0
3211	99	308	0,307	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	07:15:01	0
3211	99	308	0,307	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	11:07:03	0
3211	99	307	0,306	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	12:22:15	0
3214	99	306	0,305	cyclictest	5145	-21	kworker/u16:2+efi_rts_wq	10:52:01	3
3214	99	306	0,305	cyclictest	1373	-21	kworker/u16:1+efi_rts_wq	10:40:12	3
3211	99	306	0,305	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	07:20:15	0
3211	99	305	0,304	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	12:00:13	0
3212	99	303	0,302	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	09:01:39	1
3214	99	301	0,300	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	07:55:10	3
3214	99	301	0,299	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	11:35:13	3
3212	99	301	0,300	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	08:16:31	1
3212	99	300	0,299	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	08:05:11	1
3214	99	299	0,298	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	10:26:56	3
3211	99	299	0,298	cyclictest	1373	-21	kworker/u16:1+efi_rts_wq	10:41:59	0
3214	99	296	0,295	cyclictest	1373	-21	kworker/u16:1+efi_rts_wq	11:00:12	3
3214	99	296	0,295	cyclictest	1373	-21	kworker/u16:1+efi_rts_wq	11:00:12	3
3212	99	296	0,295	cyclictest	21234	-21	kworker/u16:3+efi_rts_wq	11:12:04	1
3214	99	295	0,294	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	12:05:12	3
3212	99	295	0,292	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	08:35:12	1
3213	99	294	0,293	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	09:25:13	2
3213	99	294	0,293	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	09:10:10	2
3211	99	294	0,293	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	09:40:14	0
3213	99	293	0,292	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	07:36:24	2
3213	99	292	0,291	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	10:05:12	2
3213	99	291	0,290	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	09:20:12	2
3214	99	290	0,289	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	12:02:11	3
3213	99	290	0,289	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	08:30:12	2
3213	99	290	0,288	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	10:30:12	2
3212	99	290	0,289	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	10:25:11	1
3214	99	288	0,287	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	10:20:12	3
3213	99	288	0,287	cyclictest	1373	-21	kworker/u16:1+efi_rts_wq	11:00:12	2
3213	99	288	0,287	cyclictest	1373	-21	kworker/u16:1+efi_rts_wq	11:00:11	2
3212	99	287	0,286	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	07:16:21	1
3214	99	286	0,285	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	08:40:11	3
3213	99	286	0,285	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	08:06:30	2
3212	99	286	0,285	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	11:50:11	1
3214	99	285	0,284	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	07:30:13	3
3213	99	285	0,284	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	07:15:14	2
3213	99	285	0,284	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	11:27:06	2
3212	99	284	0,283	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	11:37:07	1
3211	99	284	0,283	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	09:45:13	0
3214	99	282	0,281	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	12:15:14	3
3212	99	281	0,280	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	11:57:11	1
3213	99	280	0,279	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	09:05:12	2
3214	99	277	0,276	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	07:46:26	3
3213	99	276	0,275	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	07:40:12	2
3212	99	276	0,275	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	09:21:44	1
3214	99	275	0,274	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	11:30:11	3
3214	99	275	0,274	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	12:10:11	3
3213	99	275	0,274	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	07:10:13	2
3212	99	274	0,273	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	08:25:13	1
3211	99	274	0,273	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	12:37:17	0
3212	99	271	0,270	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	11:40:12	1
3211	99	271	0,270	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	10:35:10	0
3211	99	271	0,270	cyclictest	1373	-21	kworker/u16:1+efi_rts_wq	10:50:14	0
3214	99	270	0,269	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	09:36:47	3
3211	99	269	0,268	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	11:47:09	0
3212	99	268	0,267	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	09:26:45	1
3212	99	268	0,267	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	08:50:12	1
3212	99	267	0,266	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	10:06:53	1
3213	99	266	0,265	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	11:40:11	2
3213	99	265	0,264	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	09:30:11	2
3212	99	264	0,263	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	07:50:13	1
3211	99	264	0,263	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	08:56:39	0
3211	99	264	0,261	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	07:40:12	0
3214	99	263	0,262	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	08:15:13	3
3211	99	262	0,261	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	07:35:11	0
3211	99	262	0,261	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	09:55:12	0
3211	99	260	0,259	cyclictest	26718	-21	kworker/u16:0+efi_rts_wq	12:25:10	0
3212	99	259	0,258	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	08:30:11	1
3212	99	259	0,258	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	09:46:49	1
3214	99	258	0,257	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	10:16:55	3
3212	99	258	0,257	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	09:10:11	1
3212	99	257	0,256	cyclictest	5145	-21	kworker/u16:2+efi_rts_wq	10:45:11	1
3214	99	253	0,252	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	08:55:13	3
3212	99	252	0,251	cyclictest	16439	-21	kworker/u16:2+efi_rts_wq	11:45:13	1
3212	99	251	0,250	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	10:00:12	1
3213	99	249	0,248	cyclictest	26351	-21	kworker/u16:2+efi_rts_wq	07:45:12	2
3212	99	249	0,248	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	10:11:54	1
3213	99	246	0,244	cyclictest	13696	-21	kworker/u16:0+efi_rts_wq	11:05:11	2
3211	99	246	0,245	cyclictest	31733	-21	kworker/u16:3+efi_rts_wq	09:06:41	0
3211	99	246	0,245	cyclictest	20784	-21	kworker/u16:0+efi_rts_wq	08:20:10	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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