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 Sun May 17, 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
14686	2	319	303,5	sleep3	0	-21	swapper/3	07:08:46	3
14520	2	318	311,5	sleep0	0	-21	swapper/0	07:06:38	0
14588	2	315	307,5	sleep2	0	-21	swapper/2	07:07:29	2
14639	2	314	306,5	sleep1	0	-21	swapper/1	07:08:07	1
15051	99	298	0,296	cyclictest	9784	-21	kworker/u16:2+efi_rts_wq	11:00:14	2
15050	99	297	0,296	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	07:12:05	1
15050	99	295	0,294	cyclictest	29330	-21	kworker/u16:1+efi_rts_wq	11:55:12	1
15050	99	295	0,294	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:15:13	1
15050	99	295	0,294	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	07:20:12	1
15052	99	294	0,292	cyclictest	12598	-21	kworker/u16:0+efi_rts_wq	12:30:13	3
15050	99	294	0,291	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:45:12	1
15052	99	292	0,291	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	08:25:13	3
15052	99	292	0,291	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	07:15:14	3
15049	99	292	0,291	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:15:14	0
15052	99	291	0,290	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:55:12	3
15050	99	290	0,289	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:45:12	1
15049	99	289	0,288	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	09:45:12	0
15049	99	289	0,288	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	09:25:12	0
15052	99	288	0,287	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:05:13	3
15049	99	288	0,287	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	12:25:13	0
15052	99	287	0,286	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	10:35:12	3
15050	99	287	0,286	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	07:17:04	1
15049	99	287	0,286	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	07:45:12	0
15052	99	285	0,284	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	09:37:29	3
15049	99	285	0,284	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	09:35:13	0
15052	99	284	0,283	cyclictest	12598	-21	kworker/u16:0+efi_rts_wq	12:35:12	3
15052	99	284	0,283	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	07:22:05	3
15050	99	283	0,282	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	10:20:12	1
15050	99	280	0,279	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	08:35:11	1
15051	99	279	0,278	cyclictest	19198	-21	kworker/u16:0+efi_rts_wq	11:25:12	2
15052	99	277	0,276	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:20:13	3
15051	99	277	0,276	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	07:15:01	2
15050	99	276	0,275	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	10:25:13	1
15050	99	275	0,274	cyclictest	12598	-21	kworker/u16:0+efi_rts_wq	12:15:12	1
15050	99	274	0,273	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:10:16	1
15050	99	273	0,272	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	10:35:12	1
15052	99	272	0,271	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	09:55:12	3
15050	99	272	0,271	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:30:13	1
15049	99	272	0,271	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	09:07:26	0
15049	99	271	0,270	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:10:14	0
15052	99	269	0,268	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	09:12:27	3
15052	99	269	0,268	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	08:05:14	3
15052	99	266	0,265	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	08:50:12	3
15051	99	266	0,265	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	07:35:12	2
15050	99	266	0,265	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	09:50:12	1
15051	99	264	0,263	cyclictest	6674	-21	kworker/u16:1+efi_rts_wq	10:45:12	2
15050	99	264	0,263	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	07:35:11	1
15051	99	262	0,261	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	09:15:13	2
15052	99	261	0,260	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	09:00:15	3
15052	99	260	0,259	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:45:12	3
15052	99	260	0,259	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	08:30:12	3
15051	99	259	0,258	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:45:12	2
15051	99	259	0,257	cyclictest	12279	-21	kworker/u16:0+efi_rts_wq	10:50:12	2
15050	99	259	0,258	cyclictest	29330	-21	kworker/u16:1+efi_rts_wq	11:50:12	1
15052	99	258	0,257	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:37:54	3
15050	99	258	0,257	cyclictest	12598	-21	kworker/u16:0+efi_rts_wq	12:35:12	1
15049	99	258	0,257	cyclictest	12598	-21	kworker/u16:0+efi_rts_wq	12:02:58	0
15049	99	258	0,257	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	07:50:12	0
15050	99	255	0,254	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	10:00:13	1
15050	99	254	0,253	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:05:13	1
15050	99	254	0,253	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	10:32:40	1
15049	99	254	0,253	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	08:42:22	0
15049	99	254	0,253	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	07:10:14	0
15052	99	253	0,251	cyclictest	12598	-21	kworker/u16:0+efi_rts_wq	12:10:13	3
15050	99	248	0,247	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	09:10:12	1
15050	99	248	0,247	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:02:13	1
15052	99	246	0,245	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	08:40:12	3
15049	99	246	0,245	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:30:13	0
15049	99	242	0,241	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:52:24	0
15052	99	241	0,240	cyclictest	9784	-21	kworker/u16:2+efi_rts_wq	11:00:13	3
15052	99	241	0,240	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	09:32:29	3
15052	99	240	0,239	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	09:17:26	3
15049	99	240	0,239	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	09:00:15	0
15049	99	239	0,238	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	10:15:12	0
15051	99	238	0,237	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:15:10	2
15051	99	238	0,237	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	09:40:14	2
15050	99	238	0,237	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	07:55:12	1
15052	99	237	0,236	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	09:40:14	3
15052	99	236	0,235	cyclictest	19198	-21	kworker/u16:0+efi_rts_wq	11:17:50	3
15050	99	235	0,234	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	07:25:12	1
15049	99	234	0,233	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:20:13	0
15052	99	233	0,231	cyclictest	12598	-21	kworker/u16:0+efi_rts_wq	12:00:13	3
15050	99	233	0,232	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:10:15	1
15052	99	231	0,230	cyclictest	19198	-21	kworker/u16:0+efi_rts_wq	11:12:50	3
15052	99	231	0,230	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:20:14	3
15050	99	231	0,230	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	08:05:13	1
15050	99	230	0,229	cyclictest	6674	-21	kworker/u16:1+efi_rts_wq	10:42:43	1
15050	99	230	0,229	cyclictest	6674	-21	kworker/u16:1+efi_rts_wq	10:42:42	1
15049	99	229	0,228	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	10:00:12	0
15052	99	226	0,225	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	08:12:15	3
15049	99	225	0,224	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:35:12	0
15051	99	224	0,223	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	08:35:11	2
15052	99	222	0,221	cyclictest	10273	-21	kworker/u16:0+efi_rts_wq	09:20:12	3
15050	99	222	0,221	cyclictest	6674	-21	kworker/u16:1+efi_rts_wq	10:45:12	1
15052	99	221	0,220	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	10:27:40	3
15051	99	221	0,220	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	11:35:11	2
15050	99	220	0,219	cyclictest	29330	-21	kworker/u16:1+efi_rts_wq	11:35:12	1
15052	99	219	0,218	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	07:25:13	3
15052	99	217	0,216	cyclictest	12265	-21	kworker/u16:3+efi_rts_wq	12:05:10	3
15049	99	217	0,216	cyclictest	29330	-21	kworker/u16:1+efi_rts_wq	11:40:12	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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