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2026-07-08 - 10:33

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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 
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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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack3slot6s.osadl.org (updated Wed Jul 08, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26824211291,16sleep00-21swapper/019:07:030
26887211193,13sleep10-21swapper/119:07:521
26987210788,14sleep30-21swapper/319:09:103
26791210786,16sleep20-21swapper/219:06:372
56132720,1sleep39247-21diskmemload22:50:133
80822700,1sleep18084-21ssh21:42:491
27080993616,18cyclictest0-21swapper/123:15:131
27082993515,18cyclictest0-21swapper/319:55:123
27082993015,13cyclictest0-21swapper/323:15:133
2708199298,19cyclictest0-21swapper/221:25:122
313392260,0sleep30-21swapper/319:20:123
93582240,0sleep00-21swapper/022:19:280
27081992317,5cyclictest0-21swapper/221:35:122
2708199221,19cyclictest5437-21runrttasks00:00:122
2708099221,19cyclictest3728-21runrttasks22:20:111
2708099220,2cyclictest0-21swapper/119:35:121
2707999221,19cyclictest0-21swapper/021:35:130
2707999221,19cyclictest0-21swapper/020:00:110
2708299210,2cyclictest0-21swapper/319:35:113
2708199211,18cyclictest0-21swapper/220:10:132
2707999210,19cyclictest0-21swapper/022:30:110
2708299200,18cyclictest0-21swapper/322:20:123
2708199202,6cyclictest0-21swapper/219:35:002
2708199201,2cyclictest0-21swapper/221:15:122
27080991916,2cyclictest26771-21kworker/u8:222:12:051
2708199181,7cyclictest0-21swapper/219:40:012
2708099182,14cyclictest207150irq/24-eth100:24:311
2708199171,6cyclictest0-21swapper/222:40:012
27080991613,2cyclictest14489-21kworker/u8:223:36:011
2707999160,14cyclictest0-21swapper/021:40:180
2708299151,12cyclictest0-21swapper/321:00:183
27082991510,3cyclictest14858-21munin-node3
2708199151,12cyclictest12794-21ssh22:22:332
2708199150,3cyclictest16889-21ssh00:11:422
2708199150,13cyclictest9247-21diskmemload22:44:522
2708199150,13cyclictest32277-21ssh22:09:212
2708199150,13cyclictest0-21swapper/200:35:042
2708099151,8cyclictest0-21swapper/100:35:011
27080991511,3cyclictest0-21swapper/121:36:401
27079991512,2cyclictest19200-21kworker/u8:122:57:040
27079991511,2cyclictest29462-21kworker/u8:000:35:040
27079991510,3cyclictest0-21swapper/022:41:590
2707999150,4cyclictest0-21swapper/019:36:590
2707999150,14cyclictest0-21swapper/023:50:120
27082991410,2cyclictest0-21swapper/320:11:033
2708299140,2cyclictest22404-21apt-get20:20:113
2708299140,2cyclictest22404-21apt-get20:20:113
2708299140,12cyclictest0-21swapper/323:50:133
2708299140,10cyclictest0-21swapper/322:11:063
2708199149,3cyclictest0-21swapper/220:50:172
2708199149,3cyclictest0-21swapper/220:35:172
27081991411,2cyclictest0-21swapper/223:05:032
27081991411,2cyclictest0-21swapper/222:58:222
27081991411,2cyclictest0-21swapper/200:28:322
27081991410,2cyclictest0-21swapper/220:40:172
2708199140,3cyclictest0-21swapper/223:34:252
2708199140,2cyclictest9247-21diskmemload21:50:122
2708199140,2cyclictest0-21swapper/223:11:062
2708199140,2cyclictest0-21swapper/200:30:422
2708199140,13cyclictest0-21swapper/223:01:022
2708199140,13cyclictest0-21swapper/221:22:532
2708199140,12cyclictest0-21swapper/223:59:202
2708199140,12cyclictest0-21swapper/223:24:322
2708199140,12cyclictest0-21swapper/222:18:212
2708199140,12cyclictest0-21swapper/222:00:012
2708099149,3cyclictest0-21swapper/123:50:001
2708099144,8cyclictest4556-21metacity00:39:581
2708099143,2cyclictest0-21swapper/119:45:301
2708099141,8cyclictest0-21swapper/100:15:001
27080991411,2cyclictest0-21swapper/123:05:301
27080991411,2cyclictest0-21swapper/120:50:501
2708099140,2cyclictest0-21swapper/123:32:401
2708099140,2cyclictest0-21swapper/121:13:511
2708099140,13cyclictest0-21swapper/123:03:411
2708099140,13cyclictest0-21swapper/122:02:101
2708099140,12cyclictest0-21swapper/123:23:211
2708099140,12cyclictest0-21swapper/121:50:141
2708099140,12cyclictest0-21swapper/119:15:191
2707999145,7cyclictest274-21jbd2/sda1-821:05:000
27079991411,2cyclictest0-21swapper/023:40:280
27079991411,2cyclictest0-21swapper/023:40:280
27079991411,2cyclictest0-21swapper/021:48:080
27079991411,2cyclictest0-21swapper/020:15:190
27079991410,2cyclictest0-21swapper/022:25:190
2707999140,2cyclictest9247-21diskmemload23:32:180
2707999140,2cyclictest0-21swapper/022:10:480
2707999140,2cyclictest0-21swapper/000:24:580
2707999140,12cyclictest0-21swapper/023:37:500
2707999140,12cyclictest0-21swapper/023:07:480
318422130,2sleep10-21swapper/122:08:401
27082991310,2cyclictest0-21swapper/319:30:133
2708299130,12cyclictest0-21swapper/322:59:523
2708299130,12cyclictest0-21swapper/320:40:113
2708199138,3cyclictest27545-21sh00:24:062
2708199138,3cyclictest0-21swapper/219:55:132
2708199132,7cyclictest0-21swapper/221:15:002
27081991310,2cyclictest9247-21diskmemload21:58:032
27081991310,2cyclictest0-21swapper/223:54:302
27081991310,2cyclictest0-21swapper/223:19:392
27081991310,2cyclictest0-21swapper/222:51:152
27081991310,2cyclictest0-21swapper/222:47:322
27081991310,2cyclictest0-21swapper/221:40:112
27081991310,2cyclictest0-21swapper/220:30:162
27081991310,2cyclictest0-21swapper/220:26:022
27081991310,2cyclictest0-21swapper/200:16:012
27081991310,2cyclictest0-21swapper/200:07:462
2708199130,2cyclictest0-21swapper/223:46:212
2708199130,2cyclictest0-21swapper/222:31:062
2708199130,2cyclictest0-21swapper/221:30:342
2708199130,2cyclictest0-21swapper/220:00:142
2708199130,12cyclictest12421-21ssh21:47:202
2708199130,12cyclictest0-21swapper/223:41:422
2708199130,12cyclictest0-21swapper/223:41:422
2708199130,12cyclictest0-21swapper/223:37:032
2708199130,12cyclictest0-21swapper/222:10:152
2708199130,12cyclictest0-21swapper/219:45:162
2708199130,11cyclictest9247-21diskmemload23:25:252
2708099139,2cyclictest0-21swapper/120:25:111
2708099138,3cyclictest9713-21munin-node1
2708099138,3cyclictest678-21munin-node1
2708099133,8cyclictest14283-21latency_hist00:10:001
2708099132,6cyclictest0-21swapper/122:55:001
2708099131,10cyclictest9247-21diskmemload23:50:141
2708099131,10cyclictest0-21swapper/119:41:031
27080991310,2cyclictest0-21swapper/123:26:031
27080991310,2cyclictest0-21swapper/122:42:201
2708099130,2cyclictest0-21swapper/120:15:121
2708099130,12cyclictest0-21swapper/122:32:201
2708099130,12cyclictest0-21swapper/121:18:201
2708099130,12cyclictest0-21swapper/119:25:141
2707999138,3cyclictest1080-21users20:46:050
2707999138,3cyclictest0-21swapper/019:45:000
2707999138,3cyclictest0-21swapper/019:20:120
27079991310,2cyclictest19200-21kworker/u8:122:35:040
27079991310,2cyclictest18343-21kworker/u8:221:25:040
27079991310,2cyclictest0-21swapper/023:56:480
27079991310,2cyclictest0-21swapper/022:49:480
27079991310,2cyclictest0-21swapper/022:20:170
27079991310,2cyclictest0-21swapper/021:19:580
2707999130,2cyclictest9247-21diskmemload00:04:180
2707999130,2cyclictest0-21swapper/000:12:090
2707999130,12cyclictest0-21swapper/022:00:050
2707999130,12cyclictest0-21swapper/021:56:580
2707999130,12cyclictest0-21swapper/020:25:480
2707999130,11cyclictest0-21swapper/000:19:090
267122130,2sleep00-21swapper/023:12:520
146132130,2sleep00-21swapper/023:00:090
84462120,2sleep30-21swapper/323:28:063
45012120,2sleep00-21swapper/000:34:090
2708299129,2cyclictest0-21swapper/323:30:103
2708299129,2cyclictest0-21swapper/321:44:523
2708299129,2cyclictest0-21swapper/321:35:243
2708299129,2cyclictest0-21swapper/321:32:563
2708299129,2cyclictest0-21swapper/321:10:163
2708299129,2cyclictest0-21swapper/300:10:113
2708299127,3cyclictest0-21swapper/321:55:153
2708299123,6cyclictest2242-21ssh00:31:023
2708299122,6cyclictest0-21swapper/321:46:013
2708299120,2cyclictest9247-21diskmemload23:21:323
2708299120,2cyclictest0-21swapper/322:05:593
2708299120,2cyclictest0-21swapper/322:00:023
2708299120,11cyclictest23937-21ssh23:10:133
2708299120,10cyclictest0-21swapper/323:43:223
2708299120,10cyclictest0-21swapper/323:43:213
2708299120,10cyclictest0-21swapper/322:15:323
2708199129,2cyclictest0-21swapper/222:27:022
2708199127,3cyclictest29560-21tr19:15:152
2708199127,3cyclictest0-21swapper/219:30:002
2708199122,7cyclictest0-21swapper/221:05:002
2708199120,2cyclictest0-21swapper/220:55:182
2708099129,2cyclictest0-21swapper/123:42:571
2708099129,2cyclictest0-21swapper/123:42:571
2708099129,2cyclictest0-21swapper/121:30:501
2708099122,7cyclictest0-21swapper/119:34:581
2708099121,9cyclictest910-21df_abs23:55:131
2708099121,9cyclictest5211-21apt21:00:001
2708099121,9cyclictest27269-21sh23:13:461
2708099121,9cyclictest19154-21apt-get00:15:111
2708099121,9cyclictest0-21swapper/122:35:161
2708099121,3cyclictest0-21swapper/121:00:121
2708099121,3cyclictest0-21swapper/120:10:161
2708099121,3cyclictest0-21swapper/120:00:001
2708099120,2cyclictest0-21swapper/122:56:041
2708099120,2cyclictest0-21swapper/100:25:171
2708099120,11cyclictest0-21swapper/122:18:011
2708099120,11cyclictest0-21swapper/121:23:011
2708099120,11cyclictest0-21swapper/100:00:191
2707999129,2cyclictest18343-21kworker/u8:221:21:040
2707999129,2cyclictest11544-21kworker/u8:021:32:050
2707999129,2cyclictest0-21swapper/023:26:290
2707999129,2cyclictest0-21swapper/000:25:380
2707999129,2cyclictest0-21swapper/000:06:030
2707999122,8cyclictest4556-21metacity20:33:580
2707999120,2cyclictest7452-21apt-get21:05:100
2707999120,2cyclictest0-21swapper/021:52:380
2707999120,2cyclictest0-21swapper/020:50:280
2707999120,11cyclictest0-21swapper/023:48:390
2707999120,11cyclictest0-21swapper/022:53:000
2707999120,11cyclictest0-21swapper/021:12:090
2707999120,11cyclictest0-21swapper/020:10:170
2707999120,11cyclictest0-21swapper/019:25:150
269062120,2sleep10-21swapper/121:28:391
267582120,2sleep30-21swapper/322:37:363
297152110,2sleep30-21swapper/322:40:283
2708299118,2cyclictest9247-21diskmemload21:26:153
2708299118,2cyclictest9247-21diskmemload00:00:453
2708299118,2cyclictest0-21swapper/323:45:123
2708299118,2cyclictest0-21swapper/321:15:133
2708299118,2cyclictest0-21swapper/320:45:143
2708299118,2cyclictest0-21swapper/320:05:123
2708299116,3cyclictest19541-21modprobe21:20:183
2708299111,6cyclictest0-21swapper/319:50:013
2708299110,9cyclictest0-21swapper/323:35:043
2708299110,9cyclictest0-21swapper/321:50:393
2708299110,2cyclictest0-21swapper/323:57:393
2708299110,2cyclictest0-21swapper/322:45:173
2708299110,2cyclictest0-21swapper/300:15:193
2708299110,2cyclictest0-21swapper/300:05:183
2708299110,10cyclictest0-21swapper/319:41:033
2708299110,10cyclictest0-21swapper/300:23:443
2708199111,6cyclictest0-21swapper/221:06:122
2708199110,2cyclictest0-21swapper/219:20:112
2708099116,3cyclictest26508-21grep20:30:151
2708099111,8cyclictest8362-21awk21:05:161
2708099111,8cyclictest17745-21taskset20:05:191
2708099111,3cyclictest19039-21aten2.4_r3power21:55:121
2708099110,9cyclictest0-21swapper/122:26:041
2708099110,9cyclictest0-21swapper/120:45:131
2708099110,9cyclictest0-21swapper/120:00:171
2708099110,3cyclictest0-21swapper/119:10:151
2707999118,2cyclictest30734-21ssh22:06:500
2707999118,2cyclictest0-21swapper/023:20:380
2707999118,2cyclictest0-21swapper/023:17:390
2707999112,7cyclictest0-21swapper/019:53:020
2707999110,9cyclictest30483-21fschecks_count20:40:140
2707999110,9cyclictest0-21swapper/020:40:000
82452100,1sleep30-21swapper/300:37:403
2708299107,2cyclictest0-21swapper/322:30:043
2708299107,2cyclictest0-21swapper/320:25:143
2708299107,2cyclictest0-21swapper/319:15:143
2708299100,9cyclictest0-21swapper/322:28:183
2708299100,9cyclictest0-21swapper/320:55:343
2708299100,2cyclictest0-21swapper/323:05:263
2708299100,2cyclictest0-21swapper/300:25:573
2708199105,3cyclictest7397-21cut19:40:122
2708199105,3cyclictest21216-21grep20:15:182
2708199105,3cyclictest0-21swapper/220:05:172
2708099107,2cyclictest0-21swapper/120:20:121
2708099107,2cyclictest0-21swapper/120:20:111
2708099100,8cyclictest28038-21munin-node1
2708099100,8cyclictest0-21swapper/119:20:161
2708099100,2cyclictest0-21swapper/120:40:171
2707999105,3cyclictest2682-21latency_hist19:30:000
2707999105,3cyclictest16977-21cpuspeed_turbos20:05:130
2707999100,9cyclictest0-21swapper/019:15:200
2707999100,9cyclictest0-21swapper/019:10:180
270829996,2cyclictest0-21swapper/319:50:153
270829996,2cyclictest0-21swapper/319:10:133
270829994,3cyclictest2334-21grep19:26:033
270829994,3cyclictest15163-21df_abs20:00:123
270829994,3cyclictest0-21swapper/320:31:063
270829991,3cyclictest0-21swapper/320:16:043
270829990,6cyclictest0-21swapper/321:06:003
270819994,3cyclictest655-21pzem_power20:45:502
270819994,3cyclictest22431-21aten2.4-expect20:20:112
270819994,3cyclictest22431-21aten2.4-expect20:20:112
270819994,3cyclictest11181-21aten2.4_r3power19:50:102
270819990,5cyclictest0-21swapper/219:10:492
270809994,3cyclictest11307-21aten2.4_r3power19:50:111
270799994,3cyclictest22767-21df_abs20:20:140
270799994,3cyclictest22767-21df_abs20:20:130
270799990,8cyclictest0-21swapper/019:49:580
13893290,2sleep00-21swapper/019:55:310
270829983,3cyclictest3127-21nscd20:35:123
270829983,3cyclictest1745-21aten2.4-expect20:50:123
270799983,3cyclictest4487-21uname20:55:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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