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2026-09-02 - 05:06

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 376 highest latencies:
System rack3slot6s.osadl.org (updated Wed Sep 02, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147572113102,6sleep20-21swapper/219:09:392
14681210788,14sleep30-21swapper/319:08:393
14010210780,21sleep00-21swapper/019:05:240
14647210695,6sleep10-21swapper/119:08:131
28922770,0sleep00-21swapper/022:22:380
282152740,0sleep00-21swapper/023:57:330
80542700,0sleep10-21swapper/122:27:591
187382700,1sleep218731-21munin-run20:39:592
12092690,1sleep31214-21fschecks_time19:55:173
97802670,0sleep00-21swapper/021:21:020
14815993315,16cyclictest0-21swapper/323:40:113
14815993315,16cyclictest0-21swapper/323:20:123
1481299313,16cyclictest0-21swapper/000:35:130
264142300,0sleep30-21swapper/323:55:243
202752300,0sleep30-21swapper/300:23:223
14813992724,2cyclictest22185-21kworker/u8:222:14:051
160872250,0sleep00-21swapper/019:10:510
14813992522,2cyclictest10026-21kworker/u8:123:09:041
1481299248,15cyclictest0-21swapper/000:30:120
1481299248,15cyclictest0-21swapper/000:30:110
14813992219,2cyclictest31476-21kworker/u8:019:16:051
14814992117,2cyclictest0-21swapper/221:30:122
1481299210,2cyclictest0-21swapper/023:35:120
14813992017,2cyclictest16756-21kworker/u8:122:38:021
14813992017,2cyclictest1500-21kworker/u8:221:52:051
33222190,0sleep20-21swapper/222:57:072
14813991916,2cyclictest30957-21kworker/u8:121:18:051
14813991916,2cyclictest26224-21kworker/u8:023:38:051
14813991916,2cyclictest22340-21kworker/u8:223:17:041
14813991916,2cyclictest16364-21kworker/u8:023:12:021
14813991916,2cyclictest1500-21kworker/u8:221:57:051
14813991916,2cyclictest11084-21kworker/u8:123:50:051
14813991815,2cyclictest400-21kworker/u8:120:41:051
14813991815,2cyclictest27872-21kworker/u8:023:58:051
14813991815,2cyclictest14740-21kworker/u8:122:09:051
14813991814,3cyclictest27872-21kworker/u8:000:00:051
14815991711,4cyclictest32689-21ssh22:54:483
1481499171,13cyclictest10751-21ssh21:56:412
14813991714,2cyclictest9759-21kworker/u8:022:32:051
14813991714,2cyclictest26224-21kworker/u8:023:27:051
14813991714,2cyclictest26224-21kworker/u8:023:23:051
14813991714,2cyclictest22340-21kworker/u8:222:48:021
14813991714,2cyclictest20651-21kworker/u8:021:48:051
14813991714,2cyclictest15425-21kworker/u8:221:28:011
1481399170,11cyclictest0-21swapper/122:55:051
1481599161,3cyclictest0-21swapper/321:25:153
1481499161,12cyclictest0-21swapper/219:55:162
14813991613,2cyclictest26530-21kworker/u8:000:39:041
14813991613,2cyclictest26233-21kworker/u8:221:40:051
14813991613,2cyclictest22340-21kworker/u8:223:32:041
14813991613,2cyclictest17125-21kworker/u8:223:47:051
14813991613,2cyclictest15095-21kworker/u8:219:28:021
14813991613,2cyclictest14740-21kworker/u8:122:18:011
14812991611,3cyclictest0-21swapper/021:05:160
1481599151,3cyclictest4771-21sendmail-mta23:35:383
1481599151,2cyclictest0-21swapper/322:05:123
14815991512,2cyclictest381ktimersoftd/321:54:013
1481599151,12cyclictest0-21swapper/300:05:053
1481499151,3cyclictest0-21swapper/221:45:132
1481499151,12cyclictest11556-21sendmail-mta21:23:212
14814991510,3cyclictest3649-21snmpd22:16:202
1481499150,13cyclictest6246-21ssh21:52:082
1481499150,13cyclictest3649-21snmpd22:51:282
1481499150,13cyclictest13863-21timerwakeupswit00:16:032
14813991512,2cyclictest400-21kworker/u8:120:12:011
14813991512,2cyclictest3951-21kworker/u8:300:30:021
14813991512,2cyclictest3951-21kworker/u8:300:30:011
14813991512,2cyclictest22340-21kworker/u8:222:52:041
14813991512,2cyclictest16756-21kworker/u8:122:41:041
14813991512,2cyclictest15095-21kworker/u8:220:38:011
14813991512,2cyclictest11084-21kworker/u8:100:10:051
14813991512,2cyclictest11084-21kworker/u8:100:08:041
14813991512,2cyclictest10423-21kworker/u8:021:24:061
1481299151,3cyclictest20211-21sendmail-mta00:24:010
1481299151,12cyclictest0-21swapper/022:18:370
1481599149,4cyclictest0-21swapper/300:25:143
1481599142,7cyclictest0-21swapper/322:25:003
1481599142,6cyclictest0-21swapper/322:10:003
1481599142,6cyclictest0-21swapper/319:45:003
1481599141,2cyclictest0-21swapper/323:02:343
1481599141,2cyclictest0-21swapper/300:36:293
14815991411,2cyclictest0-21swapper/300:16:053
14815991411,2cyclictest0-21swapper/300:03:393
1481599141,11cyclictest19614-21ssh21:31:233
1481599140,3cyclictest0-21swapper/300:13:563
1481599140,2cyclictest0-21swapper/321:24:013
1481599140,12cyclictest0-21swapper/323:15:453
1481599140,12cyclictest0-21swapper/322:45:413
1481499149,3cyclictest15792-21ssh22:35:472
1481499149,3cyclictest0-21swapper/222:02:282
1481499149,3cyclictest0-21swapper/200:28:232
14814991411,2cyclictest0-21swapper/222:22:092
14814991411,2cyclictest0-21swapper/221:15:482
14814991411,2cyclictest0-21swapper/200:23:452
14814991410,2cyclictest1068-21ssh21:12:132
14814991410,2cyclictest0-21swapper/219:50:162
1481499140,3cyclictest274-21jbd2/sda1-823:33:512
1481499140,2cyclictest23687-21cat19:30:162
1481499140,2cyclictest0-21swapper/223:15:482
1481499140,12cyclictest7892-21pzem_current20:10:202
1481499140,12cyclictest30472-21diskmemload22:13:392
1481499140,12cyclictest30472-21diskmemload00:01:482
1481499140,12cyclictest274-21jbd2/sda1-823:55:122
14813991411,2cyclictest400-21kworker/u8:120:32:021
14813991411,2cyclictest22340-21kworker/u8:223:01:051
14813991411,2cyclictest15095-21kworker/u8:220:28:041
14813991411,2cyclictest15095-21kworker/u8:219:47:051
14813991411,2cyclictest15095-21kworker/u8:219:37:041
14812991411,2cyclictest27140-21ssh22:48:080
14812991411,2cyclictest0-21swapper/023:33:170
14812991411,2cyclictest0-21swapper/021:15:570
1481299140,3cyclictest26262-21munin-node0
1481299140,13cyclictest0-21swapper/022:14:380
1481299140,12cyclictest0-21swapper/000:10:280
248102131,8sleep130472-21diskmemload00:28:021
1481599138,3cyclictest25946-21ntp_kernel_err19:35:183
1481599138,3cyclictest0-21swapper/320:30:173
1481599131,7cyclictest0-21swapper/320:10:003
1481599131,3cyclictest20710-21sendmail-mta19:23:413
1481599131,3cyclictest0-21swapper/321:49:543
1481599131,11cyclictest381ktimersoftd/322:26:553
1481599131,11cyclictest0-21swapper/322:04:143
14815991310,2cyclictest0-21swapper/323:46:043
14815991310,2cyclictest0-21swapper/323:31:393
14815991310,2cyclictest0-21swapper/323:26:193
14815991310,2cyclictest0-21swapper/323:10:233
14815991310,2cyclictest0-21swapper/321:40:133
1481599130,12cyclictest0-21swapper/322:37:103
1481599130,12cyclictest0-21swapper/321:55:153
1481599130,12cyclictest0-21swapper/320:01:043
1481599130,11cyclictest31040-21ssh22:18:283
1481599130,11cyclictest0-21swapper/320:46:023
1481599130,11cyclictest0-21swapper/300:32:493
1481599130,11cyclictest0-21swapper/300:32:493
1481499139,3cyclictest13022-21sh23:07:052
1481499132,6cyclictest0-21swapper/223:45:002
1481499131,6cyclictest0-21swapper/219:49:592
14814991310,2cyclictest3728-21runrttasks20:15:072
14814991310,2cyclictest0-21swapper/223:24:412
14814991310,2cyclictest0-21swapper/223:03:392
14814991310,2cyclictest0-21swapper/222:41:072
14814991310,2cyclictest0-21swapper/221:40:112
14814991310,2cyclictest0-21swapper/221:38:422
14814991310,2cyclictest0-21swapper/220:31:052
14814991310,2cyclictest0-21swapper/200:34:332
14814991310,2cyclictest0-21swapper/200:34:322
1481499130,2cyclictest0-21swapper/223:11:592
1481499130,2cyclictest0-21swapper/222:08:592
1481499130,2cyclictest0-21swapper/200:36:352
1481499130,12cyclictest0-21swapper/200:14:372
1481499130,11cyclictest0-21swapper/200:06:132
14813991310,2cyclictest400-21kworker/u8:120:09:051
14813991310,2cyclictest15095-21kworker/u8:219:59:051
14813991310,2cyclictest15095-21kworker/u8:219:30:051
1481399130,12cyclictest32370-21apt-get22:20:121
1481399130,11cyclictest0-21swapper/120:20:311
1481299139,2cyclictest0-21swapper/021:31:570
14812991310,2cyclictest0-21swapper/023:40:170
14812991310,2cyclictest0-21swapper/021:50:170
14812991310,2cyclictest0-21swapper/021:45:490
14812991310,2cyclictest0-21swapper/020:55:180
14812991310,2cyclictest0-21swapper/020:50:110
14812991310,2cyclictest0-21swapper/020:36:030
14812991310,2cyclictest0-21swapper/020:00:160
14812991310,2cyclictest0-21swapper/019:25:160
14812991310,2cyclictest0-21swapper/000:03:280
1481299130,2cyclictest0-21swapper/023:45:080
1481299130,2cyclictest0-21swapper/020:30:420
1481299130,12cyclictest0-21swapper/023:25:380
1481299130,12cyclictest0-21swapper/022:55:280
1481299130,12cyclictest0-21swapper/022:27:080
1481299130,11cyclictest15712-21ssh22:35:400
1481299130,11cyclictest0-21swapper/023:15:050
1481299130,11cyclictest0-21swapper/022:00:570
1481299130,11cyclictest0-21swapper/021:29:430
1481299130,11cyclictest0-21swapper/000:06:540
90252120,1sleep00-21swapper/021:55:180
1481599129,2cyclictest0-21swapper/323:54:293
1481599129,2cyclictest0-21swapper/321:35:553
1481599129,2cyclictest0-21swapper/321:15:133
1481599128,3cyclictest0-21swapper/320:50:173
1481599122,9cyclictest0-21swapper/323:09:263
1481599122,7cyclictest0-21swapper/322:31:593
1481599122,7cyclictest0-21swapper/319:16:023
1481599121,9cyclictest28745-21taskset21:03:383
1481599121,5cyclictest0-21swapper/319:55:003
1481599121,10cyclictest0-21swapper/321:10:243
1481599120,11cyclictest0-21swapper/322:44:183
1481599120,11cyclictest0-21swapper/321:05:143
1481499129,2cyclictest0-21swapper/223:50:232
1481499129,2cyclictest0-21swapper/220:50:122
1481499129,2cyclictest0-21swapper/220:45:152
1481499129,2cyclictest0-21swapper/220:26:052
1481499120,2cyclictest0-21swapper/223:25:062
1481499120,2cyclictest0-21swapper/222:30:122
1481499120,11cyclictest7236-21ssh22:26:422
1481499120,11cyclictest0-21swapper/223:45:452
1481499120,11cyclictest0-21swapper/223:35:342
1481499120,11cyclictest0-21swapper/222:45:172
1481499120,11cyclictest0-21swapper/221:28:122
1481499120,11cyclictest0-21swapper/220:55:172
1481499120,11cyclictest0-21swapper/220:20:142
1481499120,11cyclictest0-21swapper/219:20:152
1481399129,2cyclictest26748-21kworker/u8:221:02:041
1481399129,2cyclictest20585-21kworker/u8:020:57:051
1481399129,2cyclictest15095-21kworker/u8:220:03:041
1481399129,2cyclictest0-21swapper/121:30:401
1481399129,2cyclictest0-21swapper/100:20:281
1481399128,2cyclictest0-21swapper/123:43:581
1481399122,7cyclictest0-21swapper/119:20:021
1481399121,9cyclictest22760-21apt-get20:50:061
1481399120,2cyclictest30472-21diskmemload21:11:021
1481399120,2cyclictest0-21swapper/122:00:291
1481399120,11cyclictest0-21swapper/121:05:151
1481399120,11cyclictest0-21swapper/119:10:121
1481399120,10cyclictest10014-21kworker/1:020:45:011
1481299129,2cyclictest0-21swapper/023:20:060
1481299129,2cyclictest0-21swapper/023:12:290
1481299129,2cyclictest0-21swapper/023:05:120
1481299129,2cyclictest0-21swapper/022:51:140
1481299129,2cyclictest0-21swapper/021:40:130
1481299129,2cyclictest0-21swapper/021:10:160
1481299129,2cyclictest0-21swapper/020:10:170
1481299129,2cyclictest0-21swapper/000:15:150
1481299120,2cyclictest0-21swapper/023:52:470
1481299120,2cyclictest0-21swapper/021:39:300
1481299120,2cyclictest0-21swapper/020:06:000
1481299120,11cyclictest0-21swapper/023:00:310
1481299120,11cyclictest0-21swapper/022:41:470
1481299120,11cyclictest0-21swapper/022:33:580
1481299120,11cyclictest0-21swapper/022:05:030
1481299120,11cyclictest0-21swapper/020:20:170
1481299120,11cyclictest0-21swapper/000:27:030
1481599118,2cyclictest0-21swapper/319:31:033
1481599112,6cyclictest0-21swapper/322:59:593
1481599112,6cyclictest0-21swapper/320:19:593
1481599110,2cyclictest381ktimersoftd/320:40:183
1481499112,7cyclictest0-21swapper/221:03:582
1481499110,9cyclictest0-21swapper/220:44:472
1481499110,2cyclictest0-21swapper/220:05:112
1481399118,2cyclictest27177-21kworker/u8:019:52:051
1481399110,2cyclictest0-21swapper/100:15:421
1481299118,2cyclictest0-21swapper/020:44:400
1481299118,2cyclictest0-21swapper/020:15:070
1481299112,6cyclictest0-21swapper/019:15:000
1481299111,5cyclictest0-21swapper/020:30:000
1481299110,9cyclictest0-21swapper/019:55:150
1481299110,10cyclictest0-21swapper/020:46:050
1481599107,2cyclictest0-21swapper/320:11:023
1481599102,5cyclictest0-21swapper/320:26:053
1481599102,4cyclictest0-21swapper/320:56:023
1481599100,2cyclictest0-21swapper/320:24:163
1481599100,1cyclictest0-21swapper/320:35:103
1481499107,2cyclictest0-21swapper/219:44:582
1481499107,2cyclictest0-21swapper/219:15:212
1481499107,2cyclictest0-21swapper/219:10:152
1481499103,5cyclictest0-21swapper/220:00:542
1481399107,2cyclictest15095-21kworker/u8:220:17:051
1481399107,2cyclictest15095-21kworker/u8:219:40:051
1481399107,2cyclictest0-21swapper/121:36:191
1481299102,7cyclictest0-21swapper/019:54:580
1481299101,7cyclictest28759-21sendmail-mta19:43:380
1481299100,9cyclictest0-21swapper/021:04:570
1481299100,9cyclictest0-21swapper/019:47:380
1481299100,8cyclictest0-21swapper/019:25:000
148159994,3cyclictest29187-21aten2.4_r3power19:45:113
148159994,3cyclictest2850-21rsyslogd19:25:163
148159994,3cyclictest16015-21processes19:10:203
148149994,3cyclictest21283-21wc19:25:132
148149993,4cyclictest29133-21head21:05:112
148129996,2cyclictest0-21swapper/019:34:280
148149983,3cyclictest274-21jbd2/sda1-819:35:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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