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 Sep 12, 2026 00:43:54)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
5953	2	317	311,4	sleep2	0	-21	swapper/2	19:06:45	2
5881	2	316	308,5	sleep3	0	-21	swapper/3	19:05:50	3
5940	2	315	300,5	sleep0	0	-21	swapper/0	19:06:35	0
4368	2	315	307,5	sleep1	0	-21	swapper/1	19:05:08	1
6470	99	301	0,300	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	00:25:13	0
6473	99	300	0,298	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	22:34:46	3
6471	99	300	0,299	cyclictest	8836	-21	kworker/u16:0+efi_rts_wq	23:09:53	1
6470	99	299	0,298	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	20:00:13	0
6473	99	297	0,295	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	23:45:14	3
6470	99	294	0,293	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	20:55:13	0
6472	99	292	0,291	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:15:13	2
6470	99	292	0,291	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	22:05:14	0
6470	99	292	0,290	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	00:35:13	0
6470	99	291	0,290	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	19:20:15	0
6473	99	288	0,287	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	23:35:12	3
6471	99	288	0,287	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	19:50:10	1
6472	99	286	0,285	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:30:10	2
6473	99	285	0,284	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	00:10:11	3
6470	99	284	0,283	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	22:00:14	0
6470	99	283	0,282	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	23:40:14	0
6473	99	282	0,281	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	20:35:13	3
6470	99	280	0,277	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	22:20:13	0
6473	99	278	0,277	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	21:20:11	3
6473	99	277	0,274	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	22:50:11	3
6472	99	276	0,275	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:45:13	2
6470	99	275	0,274	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	23:34:58	0
6472	99	274	0,273	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	22:30:12	2
6472	99	274	0,273	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	20:55:13	2
6471	99	272	0,271	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	19:35:13	1
6470	99	270	0,269	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	23:55:12	0
6473	99	267	0,266	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	20:40:12	3
6471	99	267	0,266	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	22:10:12	1
6471	99	267	0,266	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	23:24:56	1
6470	99	266	0,265	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	00:06:05	0
6470	99	265	0,263	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:25:15	0
6473	99	263	0,262	cyclictest	8836	-21	kworker/u16:0+efi_rts_wq	23:05:12	3
6471	99	263	0,261	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	23:40:14	1
6470	99	263	0,262	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	20:50:12	0
6472	99	262	0,260	cyclictest	8836	-21	kworker/u16:0+efi_rts_wq	23:14:54	2
6471	99	262	0,261	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	22:50:11	1
6473	99	260	0,259	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	22:19:43	3
6472	99	260	0,259	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	20:25:13	2
6471	99	260	0,259	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	00:30:11	1
6470	99	260	0,259	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	19:10:13	0
6472	99	258	0,257	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	00:21:08	2
6470	99	257	0,256	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:15:13	0
6472	99	256	0,255	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	19:55:12	2
6472	99	255	0,254	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	22:00:14	2
6470	99	255	0,254	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	22:45:11	0
6470	99	255	0,254	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	00:15:12	0
6472	99	254	0,253	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:25:15	2
6471	99	253	0,252	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	22:35:13	1
6473	99	251	0,250	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	00:05:12	3
6470	99	251	0,250	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:55:13	0
6470	99	251	0,250	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	00:10:11	0
6472	99	249	0,248	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:10:12	2
6472	99	249	0,248	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	23:30:12	2
6470	99	248	0,247	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	21:05:12	0
6470	99	247	0,244	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	20:20:12	0
6473	99	246	0,245	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	23:50:10	3
6473	99	246	0,245	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	23:50:10	3
6473	99	246	0,244	cyclictest	1145	-21	kworker/u16:3+efi_rts_wq	22:55:13	3
6471	99	246	0,245	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	22:29:45	1
6472	99	245	0,243	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	23:15:12	2
6471	99	244	0,243	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	00:20:12	1
6470	99	244	0,243	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	21:20:11	0
6472	99	243	0,240	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	22:35:13	2
6470	99	242	0,240	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	19:25:12	0
6473	99	241	0,240	cyclictest	14091	-21	kworker/u16:3+efi_rts_wq	23:25:12	3
6472	99	240	0,239	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	19:45:12	2
6472	99	240	0,239	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	22:45:12	2
6471	99	239	0,238	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	20:10:12	1
6470	99	239	0,238	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	20:35:13	0
6473	99	238	0,237	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:55:13	3
6470	99	238	0,237	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	23:51:02	0
6470	99	238	0,237	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	23:51:02	0
6470	99	237	0,236	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	19:35:13	0
6473	99	235	0,234	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	22:05:14	3
6473	99	235	0,234	cyclictest	1145	-21	kworker/u16:3+efi_rts_wq	23:00:12	3
6472	99	235	0,234	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	22:25:13	2
6472	99	233	0,232	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	20:05:14	2
6472	99	231	0,230	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	19:15:00	2
6471	99	229	0,228	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	20:05:14	1
6470	99	229	0,228	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	19:30:13	0
6470	99	229	0,227	cyclictest	1145	-21	kworker/u16:3+efi_rts_wq	22:55:13	0
6473	99	228	0,227	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	19:29:09	3
6473	99	228	0,227	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	21:35:14	3
6472	99	225	0,224	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	23:45:15	2
6472	99	225	0,224	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	23:45:00	2
6473	99	224	0,223	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	00:31:11	3
6471	99	223	0,222	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	21:04:29	1
6471	99	222	0,221	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	20:30:12	1
6472	99	221	0,220	cyclictest	28318	-21	kworker/u16:2+efi_rts_wq	00:00:11	2
6470	99	217	0,216	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	19:49:14	0
6471	99	216	0,215	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	20:59:28	1
6471	99	215	0,212	cyclictest	1145	-21	kworker/u16:3+efi_rts_wq	23:00:12	1
6470	99	214	0,213	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	21:40:12	0
6472	99	213	0,212	cyclictest	25359	-21	kworker/u16:1+efi_rts_wq	00:35:13	2
6471	99	212	0,209	cyclictest	31673	-21	kworker/u16:0+efi_rts_wq	22:40:13	1
6473	99	211	0,210	cyclictest	5947	-21	kworker/u16:3+efi_rts_wq	21:05:12	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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