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2026-05-25 - 07:07

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 the highest latencies:
System rack3slot6s.osadl.org (updated Mon May 25, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1861021390,1sleep20-21swapper/222:51:292
32712211793,18sleep00-21swapper/019:06:520
32219211291,16sleep20-21swapper/219:05:412
31757211088,15sleep10-21swapper/119:05:171
32695210999,6sleep30-21swapper/319:06:383
240232900,1sleep10-21swapper/100:05:151
96302720,0sleep20-21swapper/222:09:362
230342680,1sleep00-21swapper/020:05:000
216162680,1sleep10-21swapper/100:01:561
518993717,18cyclictest0-21swapper/123:05:091
22312260,1sleep12233-21sh21:27:551
179552260,0sleep20-21swapper/223:25:122
51899220,20cyclictest0-21swapper/123:20:111
51899210,4cyclictest0-21swapper/119:25:041
51899201,17cyclictest0-21swapper/120:40:111
517991916,2cyclictest12-21rcu_preempt23:20:110
225972190,1sleep2301ktimersoftd/222:55:502
519991714,2cyclictest16529-21kworker/u8:022:00:042
51899172,13cyclictest4562-21gdm-simple-gree19:34:591
51899172,12cyclictest0-21swapper/119:56:021
51899170,2cyclictest0-21swapper/120:00:101
520991611,3cyclictest8574-21sed22:41:013
51999161,13cyclictest13647-21apt-get21:40:102
51999161,13cyclictest0-21swapper/223:10:162
51999160,14cyclictest5671-21munin-node2
51899161,13cyclictest0-21swapper/121:44:401
51799160,14cyclictest0-21swapper/023:30:100
280742160,0sleep20-21swapper/220:15:192
201692160,1sleep09-21ksoftirqd/000:35:130
52099151,12cyclictest5381-21ssh21:30:433
52099150,13cyclictest0-21swapper/322:26:513
519991512,2cyclictest6925-21kworker/u8:220:54:042
519991512,2cyclictest30309-21kworker/u8:021:10:042
519991512,2cyclictest29072-21kworker/u8:022:40:042
519991512,2cyclictest19802-21kworker/u8:023:05:042
51899152,12cyclictest0-21swapper/119:45:011
51899151,12cyclictest21-21rcuc/123:55:251
51899151,12cyclictest0-21swapper/123:40:111
518991510,3cyclictest0-21swapper/122:13:471
51899150,13cyclictest0-21swapper/122:30:051
51899150,13cyclictest0-21swapper/121:33:391
51899150,13cyclictest0-21swapper/100:12:361
517991510,3cyclictest7335-21ssh23:47:040
517991510,2cyclictest0-21swapper/021:42:330
520991411,2cyclictest16763-21diskmemload22:09:513
520991411,2cyclictest0-21swapper/323:50:013
520991411,2cyclictest0-21swapper/300:15:113
520991410,2cyclictest0-21swapper/322:11:023
52099140,2cyclictest0-21swapper/321:51:213
52099140,2cyclictest0-21swapper/321:24:053
52099140,2cyclictest0-21swapper/320:05:133
52099140,2cyclictest0-21swapper/300:30:313
52099140,2cyclictest0-21swapper/300:22:513
52099140,13cyclictest0-21swapper/323:24:023
52099140,13cyclictest0-21swapper/322:32:213
52099140,12cyclictest717-21ssh23:06:423
52099140,12cyclictest30309-21kworker/u8:020:31:043
52099140,12cyclictest22176-21ssh22:21:393
52099140,12cyclictest0-21swapper/323:14:173
52099140,12cyclictest0-21swapper/322:37:443
52099140,12cyclictest0-21swapper/300:25:213
52099140,12cyclictest0-21swapper/300:11:393
52099140,12cyclictest0-21swapper/300:05:273
519991411,2cyclictest9035-21kworker/u8:019:38:042
519991411,2cyclictest4944-21kworker/u8:119:31:042
519991411,2cyclictest30309-21kworker/u8:021:02:042
519991411,2cyclictest26554-21kworker/u8:120:32:052
519991411,2cyclictest18405-21kworker/u8:121:17:042
519991411,2cyclictest18083-21kworker/u8:220:01:042
519991411,2cyclictest17950-21kworker/u8:300:04:022
519991411,2cyclictest14929-21kworker/u8:222:21:052
519991410,2cyclictest440-21turbostat20:30:002
519991410,2cyclictest28783-21iostat_ios21:55:172
51999140,13cyclictest0-21swapper/200:10:112
51899149,3cyclictest15929-21awk22:15:171
51899149,2cyclictest0-21swapper/122:51:041
518991412,1cyclictest0-21swapper/122:45:151
518991411,2cyclictest0-21swapper/122:05:351
518991411,2cyclictest0-21swapper/121:11:051
518991411,2cyclictest0-21swapper/100:16:351
51899141,11cyclictest0-21swapper/119:39:581
51899140,3cyclictest0-21swapper/122:03:151
51899140,2cyclictest0-21swapper/122:42:391
51899140,13cyclictest0-21swapper/121:56:551
51899140,12cyclictest21-21rcuc/121:16:031
51899140,12cyclictest16763-21diskmemload00:31:151
517991411,2cyclictest0-21swapper/023:35:100
517991411,2cyclictest0-21swapper/023:09:300
517991411,2cyclictest0-21swapper/000:25:200
51799140,2cyclictest0-21swapper/021:22:000
51799140,13cyclictest0-21swapper/022:36:110
51799140,13cyclictest0-21swapper/000:00:300
51799140,12cyclictest25673-21ssh00:06:060
51799140,12cyclictest0-21swapper/000:14:330
139672140,3sleep013977-21ssh22:46:430
52099139,2cyclictest0-21swapper/319:20:133
52099138,3cyclictest25456-21df_inode20:10:123
52099138,3cyclictest0-21swapper/323:40:153
520991310,2cyclictest0-21swapper/323:33:193
520991310,2cyclictest0-21swapper/323:02:143
520991310,2cyclictest0-21swapper/322:55:273
520991310,2cyclictest0-21swapper/322:45:203
520991310,2cyclictest0-21swapper/322:02:293
520991310,2cyclictest0-21swapper/321:56:473
520991310,2cyclictest0-21swapper/321:40:123
520991310,2cyclictest0-21swapper/321:25:533
520991310,2cyclictest0-21swapper/321:13:013
52099130,3cyclictest0-21swapper/321:00:003
52099130,2cyclictest0-21swapper/323:25:123
52099130,2cyclictest0-21swapper/323:16:483
52099130,2cyclictest0-21swapper/321:38:063
52099130,2cyclictest0-21swapper/319:35:123
52099130,12cyclictest0-21swapper/322:15:313
52099130,12cyclictest0-21swapper/320:25:113
52099130,11cyclictest16409-21ssh23:56:093
52099130,11cyclictest0-21swapper/322:50:323
52099130,11cyclictest0-21swapper/321:45:473
52099130,11cyclictest0-21swapper/320:20:173
519991310,2cyclictest9035-21kworker/u8:019:46:012
519991310,2cyclictest4944-21kworker/u8:119:23:042
519991310,2cyclictest0-21swapper/223:20:172
519991310,2cyclictest0-21swapper/222:35:202
519991310,2cyclictest0-21swapper/220:05:132
519991310,2cyclictest0-21swapper/219:56:032
51999130,2cyclictest27494-21ssh21:54:372
51999130,12cyclictest0-21swapper/223:50:132
51999130,12cyclictest0-21swapper/222:10:122
51999130,12cyclictest0-21swapper/221:25:062
51999130,12cyclictest0-21swapper/219:40:112
51999130,11cyclictest0-21swapper/220:20:172
51899138,3cyclictest0-21swapper/119:15:151
51899131,3cyclictest0-21swapper/123:50:131
51899131,10cyclictest0-21swapper/120:31:021
518991310,2cyclictest23-21ksoftirqd/119:20:141
518991310,2cyclictest0-21swapper/123:46:261
518991310,2cyclictest0-21swapper/123:31:301
518991310,2cyclictest0-21swapper/123:02:171
518991310,2cyclictest0-21swapper/121:20:461
518991310,2cyclictest0-21swapper/119:50:151
51899130,2cyclictest0-21swapper/122:23:471
51899130,2cyclictest0-21swapper/121:45:181
51899130,2cyclictest0-21swapper/100:27:161
51899130,12cyclictest0-21swapper/123:37:561
51899130,12cyclictest0-21swapper/123:27:251
51899130,12cyclictest0-21swapper/123:16:451
51899130,12cyclictest0-21swapper/123:12:551
51899130,12cyclictest0-21swapper/122:26:051
51899130,12cyclictest0-21swapper/121:53:591
51899130,12cyclictest0-21swapper/100:23:451
51899130,11cyclictest23-21ksoftirqd/120:45:291
517991310,2cyclictest5397-21apt-get22:05:120
517991310,2cyclictest16529-21kworker/u8:021:57:040
517991310,2cyclictest10468-21ssh21:36:010
517991310,2cyclictest0-21swapper/023:50:230
517991310,2cyclictest0-21swapper/023:16:440
517991310,2cyclictest0-21swapper/023:00:130
517991310,2cyclictest0-21swapper/022:57:130
517991310,2cyclictest0-21swapper/022:51:330
517991310,2cyclictest0-21swapper/022:40:160
517991310,2cyclictest0-21swapper/022:11:510
517991310,2cyclictest0-21swapper/021:28:030
517991310,2cyclictest0-21swapper/021:17:120
517991310,2cyclictest0-21swapper/020:25:160
517991310,2cyclictest0-21swapper/020:20:160
517991310,2cyclictest0-21swapper/019:44:590
51799130,2cyclictest2539-21ssh23:42:220
51799130,2cyclictest18285-21ssh00:32:330
51799130,2cyclictest0-21swapper/019:21:040
51799130,12cyclictest0-21swapper/023:25:010
51799130,12cyclictest0-21swapper/022:18:200
51799130,12cyclictest0-21swapper/022:00:160
51799130,12cyclictest0-21swapper/000:15:020
51799130,11cyclictest31871-21ssh22:31:440
51799130,11cyclictest26819-21sh21:53:340
51799130,11cyclictest16988-21ssh21:10:030
33122130,2sleep10-21swapper/122:35:551
245532130,2sleep30-21swapper/321:17:123
52099129,2cyclictest0-21swapper/320:36:033
52099129,2cyclictest0-21swapper/319:26:033
52099129,2cyclictest0-21swapper/300:36:183
52099129,2cyclictest0-21swapper/300:00:083
52099121,6cyclictest0-21swapper/319:35:003
52099120,1cyclictest0-21swapper/323:36:083
52099120,11cyclictest0-21swapper/323:45:533
51999129,2cyclictest5818-21ssh00:20:042
51999129,2cyclictest29072-21kworker/u8:022:30:042
51999129,2cyclictest14633-21kworker/u8:019:19:052
51999129,2cyclictest0-21swapper/222:46:252
51999129,2cyclictest0-21swapper/222:17:102
51999129,2cyclictest0-21swapper/221:21:072
51999129,2cyclictest0-21swapper/200:35:112
51999121,3cyclictest16838-21ssh23:56:502
51999120,1cyclictest0-21swapper/221:45:152
51999120,11cyclictest26132-21ssh22:25:552
51999120,11cyclictest16763-21diskmemload23:49:442
51999120,11cyclictest16763-21diskmemload23:16:182
51999120,11cyclictest0-21swapper/223:30:182
51999120,11cyclictest0-21swapper/221:36:162
51999120,11cyclictest0-21swapper/219:50:142
51999120,11cyclictest0-21swapper/200:31:262
51899127,3cyclictest0-21swapper/120:11:031
51899121,9cyclictest0-21swapper/120:55:151
51899121,9cyclictest0-21swapper/120:25:131
51899121,6cyclictest0-21swapper/121:10:001
51899120,2cyclictest0-21swapper/120:05:511
51899120,2cyclictest0-21swapper/100:36:091
51899120,11cyclictest0-21swapper/122:56:081
51899120,11cyclictest0-21swapper/121:35:401
51899120,11cyclictest0-21swapper/120:50:181
51899120,11cyclictest0-21swapper/120:20:131
51799129,2cyclictest16763-21diskmemload21:45:470
51799129,2cyclictest0-21swapper/022:26:120
51799120,2cyclictest0-21swapper/023:55:030
51799120,2cyclictest0-21swapper/021:33:010
51799120,2cyclictest0-21swapper/000:21:440
51799120,11cyclictest0-21swapper/023:11:120
51799120,11cyclictest0-21swapper/022:20:140
51799120,11cyclictest0-21swapper/020:11:010
80532110,0sleep30-21swapper/320:46:013
52099112,6cyclictest0-21swapper/319:13:583
52099110,10cyclictest0-21swapper/320:50:033
51999118,2cyclictest9651-21kworker/u8:219:13:042
51999118,2cyclictest6925-21kworker/u8:220:55:052
51999118,2cyclictest0-21swapper/200:15:432
51999110,9cyclictest0-21swapper/200:05:042
51999110,10cyclictest0-21swapper/223:37:112
51999110,10cyclictest0-21swapper/200:27:162
51899111,8cyclictest0-21swapper/121:01:011
51899110,9cyclictest737-21munin-node1
51899110,9cyclictest2690-21apt-get20:35:121
51899110,9cyclictest0-21swapper/120:15:151
51799118,2cyclictest0-21swapper/021:05:150
51799118,2cyclictest0-21swapper/020:05:000
51799118,2cyclictest0-21swapper/019:25:190
51799111,2cyclictest20824-21munin-run20:00:000
52099107,2cyclictest0-21swapper/321:01:043
52099107,2cyclictest0-21swapper/319:51:033
52099107,2cyclictest0-21swapper/319:45:133
52099102,6cyclictest0-21swapper/320:01:003
51999107,2cyclictest22097-21kworker/u8:020:10:012
51999100,9cyclictest0-21swapper/223:42:512
51999100,9cyclictest0-21swapper/223:00:412
51899100,8cyclictest12999-21munin-node1
51799107,2cyclictest9035-21kworker/u8:019:47:040
51799107,2cyclictest0-21swapper/020:16:020
51799107,2cyclictest0-21swapper/019:16:030
105002100,1sleep00-21swapper/020:52:160
5209996,2cyclictest0-21swapper/320:40:123
5199991,3cyclictest7255-21sed20:45:142
5199990,2cyclictest0-21swapper/219:29:042
5179996,2cyclictest30309-21kworker/u8:020:46:020
5179996,2cyclictest26554-21kworker/u8:120:30:040
5179996,2cyclictest10928-21kworker/u8:120:58:010
5179996,2cyclictest0-21swapper/020:41:340
5209984,2cyclictest15019-21aten2.4_r3power21:05:143
5209983,3cyclictest2746-21taskset19:15:063
5209983,3cyclictest27236-21telnet20:15:133
5209983,3cyclictest13792-21sort19:40:173
5209983,3cyclictest0-21swapper/319:55:153
5199984,3cyclictest15135-21cpu21:05:132
5199983,3cyclictest0-21swapper/220:40:122
5199983,3cyclictest0-21swapper/220:35:152
5179985,2cyclictest9035-21kworker/u8:019:39:040
5179985,2cyclictest0-21swapper/020:38:310
5179983,3cyclictest999-21cut19:10:130
5179981,6cyclictest18408-21grep19:51:050
5179980,2cyclictest0-21swapper/021:02:020
5179973,3cyclictest9848-21ntp_kernel_pll_19:30:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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