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 Tue Mar 10, 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
25046	2	324	317,5	sleep3	0	-21	swapper/3	07:09:07	3
24904	2	324	309,5	sleep2	0	-21	swapper/2	07:07:18	2
24798	2	318	303,5	sleep1	0	-21	swapper/1	07:05:57	1
25380	99	316	0,315	cyclictest	29280	-21	kworker/u16:3+efi_rts_wq	11:35:14	1
25382	99	315	0,314	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:20:12	3
24864	2	315	308,5	sleep0	0	-21	swapper/0	07:06:47	0
25380	99	314	0,313	cyclictest	29280	-21	kworker/u16:3+efi_rts_wq	11:05:12	1
25382	99	313	0,312	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	07:40:11	3
25381	99	312	0,310	cyclictest	32040	-21	kworker/u16:0+efi_rts_wq	10:50:11	2
25379	99	312	0,311	cyclictest	26484	-21	kworker/u16:2+efi_rts_wq	10:55:14	0
25380	99	311	0,310	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	09:50:12	1
25382	99	310	0,309	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	08:30:11	3
25382	99	307	0,306	cyclictest	1123	-21	kworker/u16:2+efi_rts_wq	12:35:13	3
25381	99	307	0,304	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	08:40:13	2
25380	99	307	0,306	cyclictest	3620	-21	kworker/u16:1+efi_rts_wq	12:15:13	1
25382	99	306	0,305	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	07:25:14	3
25382	99	304	0,303	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	08:42:10	3
25381	99	304	0,303	cyclictest	30951	-21	kworker/u16:0+efi_rts_wq	12:00:11	2
25382	99	303	0,302	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:40:12	3
25379	99	301	0,300	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	08:10:13	0
25379	99	300	0,299	cyclictest	3620	-21	kworker/u16:1+efi_rts_wq	12:30:13	0
25382	99	298	0,297	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:00:13	3
25381	99	297	0,296	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	08:45:14	2
25381	99	297	0,296	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	07:25:14	2
25380	99	296	0,295	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	09:32:20	1
25379	99	296	0,295	cyclictest	1123	-21	kworker/u16:2+efi_rts_wq	12:10:12	0
25380	99	293	0,292	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	10:10:13	1
25380	99	292	0,291	cyclictest	1123	-21	kworker/u16:2+efi_rts_wq	11:55:11	1
25379	99	290	0,289	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:45:11	0
25379	99	290	0,289	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:00:12	0
25382	99	289	0,288	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	09:55:11	3
25381	99	288	0,287	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:35:14	2
25380	99	288	0,287	cyclictest	23744	-21	kworker/u16:1+efi_rts_wq	10:40:12	1
25379	99	288	0,287	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	07:16:55	0
25382	99	287	0,286	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:25:14	3
25382	99	287	0,286	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	07:50:12	3
25380	99	286	0,285	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	10:00:13	1
25380	99	286	0,285	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	07:15:02	1
25379	99	286	0,285	cyclictest	1123	-21	kworker/u16:2+efi_rts_wq	12:37:57	0
25380	99	285	0,284	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:15:12	1
25379	99	285	0,284	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	07:25:13	0
25379	99	284	0,283	cyclictest	29280	-21	kworker/u16:3+efi_rts_wq	11:20:14	0
25382	99	283	0,282	cyclictest	1123	-21	kworker/u16:2+efi_rts_wq	12:05:14	3
25379	99	283	0,282	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	10:00:13	0
25379	99	283	0,280	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	09:30:12	0
25382	99	280	0,279	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	07:15:00	3
25379	99	279	0,278	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	10:15:10	0
25381	99	277	0,274	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:25:13	2
25380	99	277	0,276	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:50:12	1
25379	99	277	0,275	cyclictest	29280	-21	kworker/u16:3+efi_rts_wq	11:30:11	0
25379	99	276	0,275	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:00:11	0
25382	99	275	0,274	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	10:20:11	3
25382	99	275	0,274	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	10:20:10	3
25379	99	274	0,273	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:35:13	0
25381	99	273	0,272	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	10:10:13	2
25379	99	273	0,272	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:42:45	0
25382	99	271	0,270	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:25:12	3
25382	99	270	0,269	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:20:13	3
25379	99	270	0,269	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:17:18	0
25380	99	268	0,267	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:15:13	1
25382	99	267	0,266	cyclictest	26484	-21	kworker/u16:2+efi_rts_wq	10:55:13	3
25381	99	266	0,265	cyclictest	3620	-21	kworker/u16:1+efi_rts_wq	12:32:56	2
25380	99	266	0,265	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:02:37	1
25379	99	265	0,264	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:20:12	0
25381	99	264	0,263	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	08:55:13	2
25379	99	264	0,263	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:25:14	0
25380	99	263	0,262	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:25:14	1
25379	99	263	0,262	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:15:13	0
25382	99	262	0,261	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	10:15:10	3
25379	99	262	0,261	cyclictest	32040	-21	kworker/u16:0+efi_rts_wq	10:50:11	0
25381	99	260	0,257	cyclictest	1123	-21	kworker/u16:2+efi_rts_wq	12:35:12	2
25379	99	259	0,258	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	07:30:14	0
25380	99	258	0,257	cyclictest	1123	-21	kworker/u16:2+efi_rts_wq	12:05:13	1
25381	99	257	0,256	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:40:13	2
25380	99	256	0,255	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	10:05:13	1
25382	99	255	0,254	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	07:36:59	3
25381	99	255	0,254	cyclictest	29280	-21	kworker/u16:3+efi_rts_wq	11:50:12	2
25381	99	255	0,254	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:10:12	2
25380	99	255	0,254	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	07:47:00	1
25382	99	254	0,253	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:10:12	3
25380	99	254	0,253	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:57:26	1
25379	99	253	0,252	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	10:20:10	0
25379	99	253	0,252	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	10:20:10	0
25381	99	251	0,250	cyclictest	29280	-21	kworker/u16:3+efi_rts_wq	11:30:12	2
25382	99	250	0,249	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	07:55:14	3
25381	99	250	0,249	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:05:13	2
25382	99	249	0,248	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:00:12	3
25382	99	247	0,246	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:07:03	3
25380	99	247	0,246	cyclictest	29280	-21	kworker/u16:3+efi_rts_wq	11:45:14	1
25379	99	247	0,246	cyclictest	29280	-21	kworker/u16:3+efi_rts_wq	11:50:12	0
25379	99	245	0,244	cyclictest	30951	-21	kworker/u16:0+efi_rts_wq	12:00:11	0
25382	99	242	0,241	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	09:40:13	3
25380	99	241	0,239	cyclictest	2607	-21	kworker/u16:1+efi_rts_wq	11:40:12	1
25381	99	240	0,239	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	10:35:12	2
25381	99	238	0,237	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:00:12	2
25382	99	237	0,236	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	08:45:14	3
25380	99	237	0,236	cyclictest	6295	-21	kworker/u16:3+efi_rts_wq	08:10:13	1
25382	99	236	0,235	cyclictest	29280	-21	kworker/u16:3+efi_rts_wq	11:47:46	3
25382	99	236	0,235	cyclictest	23744	-21	kworker/u16:1+efi_rts_wq	10:40:13	3
25381	99	235	0,234	cyclictest	28124	-21	kworker/u16:0+efi_rts_wq	07:35:15	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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