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 Aug 01, 2026 12:43:53)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
29617	2	320	306,4	sleep2	0	-21	swapper/2	07:05:44	2
29698	2	318	308,8	sleep1	0	-21	swapper/1	07:06:48	1
29761	2	317	304,4	sleep3	0	-21	swapper/3	07:07:34	3
29682	2	315	308,5	sleep0	0	-21	swapper/0	07:06:35	0
30217	99	303	0,300	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	09:40:13	3
30216	99	299	0,298	cyclictest	16502	-21	kworker/u16:3+efi_rts_wq	07:42:32	2
30212	99	299	0,298	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	10:35:16	0
30212	99	298	0,297	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	08:00:14	0
30216	99	297	0,296	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	08:50:12	2
30215	99	297	0,296	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	07:55:11	1
30217	99	295	0,294	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	12:00:13	3
30212	99	294	0,293	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	08:17:39	0
30215	99	293	0,292	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	09:55:15	1
30215	99	293	0,292	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	10:25:14	1
30217	99	292	0,291	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	09:50:14	3
30212	99	292	0,291	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:17:28	0
30215	99	291	0,290	cyclictest	7175	-21	kworker/u16:3+efi_rts_wq	11:28:11	1
30215	99	291	0,290	cyclictest	23232	-21	kworker/u16:2+efi_rts_wq	12:15:14	1
30212	99	291	0,290	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:45:14	0
30216	99	288	0,287	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:45:13	2
30215	99	288	0,287	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	10:38:03	1
30215	99	288	0,287	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	08:07:37	1
30212	99	285	0,284	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	08:05:15	0
30217	99	284	0,283	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	10:50:14	3
30216	99	284	0,283	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	10:02:54	2
30215	99	284	0,283	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:23:11	1
30212	99	284	0,283	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	08:25:14	0
30212	99	283	0,282	cyclictest	7175	-21	kworker/u16:3+efi_rts_wq	11:43:14	0
30212	99	283	0,282	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:15:12	0
30216	99	282	0,281	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	12:13:20	2
30216	99	282	0,281	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	10:30:12	2
30217	99	281	0,279	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	10:40:13	3
30212	99	281	0,280	cyclictest	7175	-21	kworker/u16:3+efi_rts_wq	11:20:13	0
30212	99	281	0,280	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:20:11	0
30217	99	280	0,279	cyclictest	23232	-21	kworker/u16:2+efi_rts_wq	12:38:25	3
30212	99	278	0,277	cyclictest	7175	-21	kworker/u16:3+efi_rts_wq	11:50:12	0
30215	99	277	0,276	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	08:40:13	1
30215	99	276	0,275	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	09:20:12	1
30215	99	276	0,275	cyclictest	16502	-21	kworker/u16:3+efi_rts_wq	07:35:13	1
30212	99	276	0,275	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	09:52:52	0
30215	99	275	0,274	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:05:14	1
30217	99	274	0,273	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:25:12	3
30215	99	273	0,272	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	10:45:13	1
30212	99	273	0,272	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:35:13	0
30212	99	271	0,270	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	10:55:15	0
30215	99	270	0,269	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:15:01	1
30217	99	269	0,268	cyclictest	16502	-21	kworker/u16:3+efi_rts_wq	07:35:13	3
30212	99	269	0,268	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	09:20:11	0
30216	99	268	0,267	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:15:12	2
30217	99	267	0,266	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	08:20:11	3
30212	99	267	0,266	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:50:14	0
30217	99	266	0,265	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	12:20:12	3
30217	99	266	0,265	cyclictest	23232	-21	kworker/u16:2+efi_rts_wq	12:18:22	3
30215	99	266	0,265	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	08:02:35	1
30215	99	266	0,264	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	09:10:13	1
30212	99	266	0,265	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	08:55:14	0
30217	99	265	0,264	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	09:20:11	3
30216	99	265	0,264	cyclictest	7175	-21	kworker/u16:3+efi_rts_wq	11:20:12	2
30212	99	265	0,264	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	08:30:13	0
30217	99	264	0,263	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	09:35:12	3
30215	99	264	0,263	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	08:35:13	1
30215	99	262	0,261	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	09:05:12	1
30212	99	262	0,261	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	12:00:12	0
30216	99	261	0,260	cyclictest	23232	-21	kworker/u16:2+efi_rts_wq	12:25:14	2
30212	99	261	0,260	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	10:33:01	0
30217	99	260	0,259	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:20:12	3
30212	99	260	0,259	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	08:40:13	0
30212	99	259	0,258	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	08:45:12	0
30215	99	255	0,254	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:10:14	1
30217	99	254	0,253	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	08:12:37	3
30216	99	254	0,253	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:05:13	2
30216	99	253	0,252	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:30:15	2
30212	99	251	0,250	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:00:13	0
30217	99	250	0,249	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	09:12:46	3
30212	99	250	0,249	cyclictest	28869	-21	kworker/u16:1+efi_rts_wq	10:53:04	0
30216	99	249	0,248	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	09:00:14	2
30216	99	249	0,248	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	12:05:13	2
30216	99	249	0,248	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	12:05:12	2
30215	99	248	0,247	cyclictest	7175	-21	kworker/u16:3+efi_rts_wq	11:55:14	1
30212	99	247	0,246	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	12:30:14	0
30212	99	247	0,246	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:10:16	0
30217	99	246	0,245	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:45:14	3
30212	99	246	0,245	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	10:05:13	0
30217	99	244	0,243	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:30:13	3
30216	99	244	0,243	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	09:05:12	2
30212	99	243	0,240	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	08:20:12	0
30217	99	241	0,240	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	10:00:15	3
30216	99	238	0,237	cyclictest	7175	-21	kworker/u16:3+efi_rts_wq	11:30:14	2
30216	99	238	0,237	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	08:47:43	2
30212	99	238	0,237	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:32:31	0
30212	99	237	0,236	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:30:13	0
30215	99	236	0,235	cyclictest	10538	-21	kworker/u16:2+efi_rts_wq	10:22:59	1
30215	99	229	0,228	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:30:14	1
30217	99	228	0,227	cyclictest	7175	-21	kworker/u16:3+efi_rts_wq	11:38:13	3
30216	99	226	0,225	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:10:14	2
30217	99	225	0,224	cyclictest	26853	-21	kworker/u16:0+efi_rts_wq	07:50:15	3
30217	99	225	0,224	cyclictest	16502	-21	kworker/u16:3+efi_rts_wq	07:40:17	3
30215	99	225	0,224	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:40:14	1
30217	99	224	0,223	cyclictest	29566	-21	kworker/u16:3+efi_rts_wq	11:03:06	3
30217	99	223	0,222	cyclictest	26244	-21	kworker/u16:0+efi_rts_wq	11:40:13	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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