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2026-05-03 - 12:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, 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.

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 rackeslot6s.osadl.org (updated Sun May 03, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1021550991225,3cyclictest1030289-21apt-get20:00:010
1021555999111,49cyclictest1042402-21/usr/sbin/munin21:10:181
1021555997825,22cyclictest0-21swapper/119:30:011
102155599734,30cyclictest1061011-21kworker/u8:3+ext4-rsv-conversion23:05:051
102155099712,66cyclictest23850irq/422-mmc122:05:050
1021555996925,23cyclictest0-21swapper/100:35:181
102155599669,33cyclictest0-21swapper/121:55:001
102155599654,40cyclictest0-21swapper/121:50:011
102155599654,40cyclictest0-21swapper/121:50:011
1021555996136,19cyclictest0-21swapper/119:30:131
1021555996136,19cyclictest0-21swapper/119:30:131
1021560995943,11cyclictest1061037-21sendmail23:00:002
1021555995938,15cyclictest0-21swapper/121:40:121
1021555995932,13cyclictest0-21swapper/123:00:121
1021550995844,6cyclictest167350irq/118-8000000.ethernet-tx023:10:130
1021555995737,14cyclictest0-21swapper/121:55:121
1021555995735,10cyclictest0-21swapper/122:50:131
102155099571,5cyclictest0-21swapper/022:00:110
102156099563,20cyclictest1058331-21apt-get22:45:022
1021555995640,11cyclictest1044944-21apt-get21:25:151
1021555995638,10cyclictest1027972-21/usr/sbin/munin19:45:311
1021555995634,15cyclictest0-21swapper/122:40:101
1021555995631,16cyclictest1029245-21/usr/sbin/munin19:50:271
1021555995629,14cyclictest0-21swapper/119:15:131
1021555995629,14cyclictest0-21swapper/119:15:121
1021555995536,14cyclictest0-21swapper/100:20:131
1021555995534,13cyclictest1072394-21/usr/sbin/munin00:05:251
1021555995533,14cyclictest1021543-21cyclictest21:15:131
1021555995440,9cyclictest0-21swapper/100:10:111
1021560995345,5cyclictest1050636-21munin-plugin-st22:00:002
1021555995337,8cyclictest1026276-21/usr/sbin/munin19:35:301
1021555995335,11cyclictest1024121-21/usr/sbin/munin19:20:271
1021555995331,14cyclictest1064785-21/usr/sbin/munin23:20:171
1021555995331,13cyclictest1067847-21/usr/sbin/munin23:35:291
1021555995331,13cyclictest1064095-21/usr/sbin/munin23:15:211
1021555995323,24cyclictest1660-21snmpd23:33:051
102155599528,21cyclictest0-21swapper/120:25:011
1021555995237,10cyclictest0-21swapper/120:50:111
1021555995229,14cyclictest1065627-21/usr/sbin/munin23:25:161
1021555995229,14cyclictest1041918-21/usr/sbin/munin21:05:271
1021555995229,14cyclictest1041918-21/usr/sbin/munin21:05:271
1021555995228,14cyclictest1074672-21/usr/sbin/munin00:15:281
1021555995228,14cyclictest1074672-21/usr/sbin/munin00:15:281
1021555995138,8cyclictest1033117-21apt-get20:15:141
1021555995138,8cyclictest0-21swapper/122:55:151
1021555995135,8cyclictest1054050-21grep22:15:291
1021555995129,11cyclictest0-21swapper/121:00:131
1021550995136,9cyclictest0-21swapper/019:10:010
102155099512,45cyclictest0-21swapper/023:45:000
1021555995042,3cyclictest1055158-21apt-get22:25:111
1021555995042,3cyclictest1055158-21apt-get22:25:111
1021555995038,8cyclictest1052808-21ssh22:10:211
1021555995037,9cyclictest0-21swapper/122:30:121
1021555995036,9cyclictest0-21swapper/122:45:121
1021555995034,8cyclictest0-21swapper/122:00:141
1021555995032,9cyclictest1039941-21/usr/sbin/munin20:55:171
1021555995032,13cyclictest0-21swapper/100:05:021
1021555995032,12cyclictest1075939-21/usr/sbin/munin00:25:191
1021555995031,12cyclictest1052132-21/usr/sbin/munin22:05:261
1021555994942,3cyclictest1070610-21apt-get23:55:141
1021555994942,3cyclictest1038262-21diskstats20:45:201
1021555994935,7cyclictest1032719-21/usr/sbin/munin20:10:261
1021555994935,10cyclictest0-21swapper/120:35:141
1021555994934,9cyclictest1069508-21grep23:45:281
1021555994934,9cyclictest1069508-21grep23:45:281
1021555994934,9cyclictest0-21swapper/100:30:121
1021555994933,8cyclictest1044104-21apt-get21:20:141
1021555994933,11cyclictest1068091-21munin-node23:40:101
1021555994931,12cyclictest1057153-21/usr/sbin/munin22:35:261
1021555994931,10cyclictest1031502-21/usr/sbin/munin20:05:161
1021555994929,14cyclictest1030923-21/usr/sbin/munin20:00:241
1021555994928,14cyclictest1035151-21/usr/sbin/munin20:25:231
1021555994924,17cyclictest1036228-21grep20:30:291
1021555994924,16cyclictest1021697-21grep19:10:011
1021550994931,15cyclictest167350irq/118-8000000.ethernet-tx023:30:000
102155099492,45cyclictest0-21swapper/021:00:210
1021560994841,4cyclictest1026915-21sendmail19:40:002
1021555994839,4cyclictest1027137-21apt-get19:40:141
1021555994836,8cyclictest1021481-21apt-get19:10:051
1021555994831,12cyclictest1063089-21/usr/sbin/munin23:10:191
1021555994831,11cyclictest1037433-21/usr/sbin/munin20:40:171
1021555994831,10cyclictest1054629-21/usr/sbin/munin22:20:261
1021550994841,5cyclictest1036294-21munin-plugin-st20:35:000
102155099482,40cyclictest0-21swapper/022:50:010
102156099479,11cyclictest1076505-21apt-get00:30:012
1021555994740,3cyclictest1045779-21munin-node21:30:091
1021555994733,9cyclictest1029885-21/usr/sbin/munin19:55:221
1021560994630,11cyclictest311ktimers/220:45:132
1021560994628,13cyclictest311ktimers/221:50:122
1021555994630,8cyclictest1046617-21munin-node21:35:121
1021555994628,12cyclictest1070080-21/usr/sbin/munin23:50:261
1021550994639,4cyclictest167350irq/118-8000000.ethernet-tx023:05:180
1021550994538,4cyclictest167350irq/118-8000000.ethernet-tx022:20:290
102155099451,41cyclictest0-21swapper/000:10:220
102155099441,40cyclictest0-21swapper/019:45:270
102155099441,37cyclictest1030289-21apt-get20:00:030
1021560994328,11cyclictest0-21swapper/220:05:222
1021550994335,5cyclictest0-21swapper/022:45:010
1021550994333,4cyclictest20850irq/208-8000000.ethernet19:15:010
102155099432,4cyclictest1049212-21df21:50:180
1021550994324,17cyclictest0-21swapper/023:35:270
1021550994235,4cyclictest167350irq/118-8000000.ethernet-tx020:25:250
1021550994234,5cyclictest167350irq/118-8000000.ethernet-tx000:15:270
1021550994234,5cyclictest167350irq/118-8000000.ethernet-tx000:15:270
102155099422,4cyclictest1037651-21meminfo20:40:220
1021560994131,5cyclictest0-21swapper/219:30:292
1021560994131,5cyclictest0-21swapper/219:30:292
1021560994130,5cyclictest0-21swapper/221:25:192
1021560994129,8cyclictest0-21swapper/220:35:282
1021550994132,5cyclictest0-21swapper/019:50:250
1021550994129,8cyclictest0-21swapper/019:29:590
102155099411,4cyclictest1036565-21diskstats20:35:180
102155099411,4cyclictest1034614-21munin-run20:25:000
102155099411,38cyclictest1056234-21if_eth122:30:220
1021560994031,6cyclictest274-21systemd-journal22:10:002
1021550994035,4cyclictest0-21swapper/021:15:120
1021550994033,5cyclictest0-21swapper/021:55:130
1021550994033,4cyclictest167350irq/118-8000000.ethernet-tx021:35:220
1021550994031,5cyclictest0-21swapper/020:45:300
1021550994030,7cyclictest1072820-21ptp4l-jitter00:05:270
1021550994030,6cyclictest1060073-21grep22:50:270
102155099402,3cyclictest1071405-21sed00:00:020
1021550994023,15cyclictest1071872-21/usr/sbin/munin00:00:280
1021550994022,14cyclictest14-21rcu_preempt21:25:130
102155099401,4cyclictest1044741-21munin-run21:25:010
102155099401,37cyclictest1025699-21/usr/sbin/munin19:30:230
102155099401,37cyclictest1025699-21/usr/sbin/munin19:30:220
102155099401,37cyclictest0-21swapper/022:25:210
102155099401,37cyclictest0-21swapper/022:25:210
102155099401,37cyclictest0-21swapper/021:10:160
102155099401,37cyclictest0-21swapper/019:35:190
1021560993930,5cyclictest0-21swapper/200:35:282
1021560993926,9cyclictest311ktimers/200:05:122
1021560993925,7cyclictest1044743-21munin-plugin-st21:25:002
102155099393,33cyclictest0-21swapper/023:50:270
1021550993933,3cyclictest0-21swapper/022:15:270
1021550993930,5cyclictest0-21swapper/021:40:280
1021550993923,15cyclictest0-21swapper/021:30:150
102155099391,36cyclictest0-21swapper/023:45:230
102155099391,36cyclictest0-21swapper/023:45:230
102155099391,2cyclictest0-21swapper/019:25:010
1021560993826,9cyclictest311ktimers/219:45:152
1021560993824,8cyclictest0-21swapper/200:20:302
1021560993823,10cyclictest0-21swapper/220:00:202
1021560993818,16cyclictest311ktimers/219:40:112
1021550993832,3cyclictest0-21swapper/022:12:050
102155099381,4cyclictest0-21swapper/023:00:140
102155099381,35cyclictest1057396-21/usr/sbin/munin22:35:290
102155099381,35cyclictest0-21swapper/019:15:230
102155099381,35cyclictest0-21swapper/019:15:230
102155099381,32cyclictest0-21swapper/021:10:010
102155099381,32cyclictest0-21swapper/021:10:010
102156099375,16cyclictest1033114-21/usr/sbin/munin20:15:172
1021560993729,5cyclictest1021543-21cyclictest21:10:272
1021560993728,5cyclictest1029443-21cron19:54:592
1021560993727,6cyclictest0-21swapper/219:20:002
1021560993727,6cyclictest0-21swapper/219:20:002
1021560993722,9cyclictest0-21swapper/220:20:252
1021550993732,2cyclictest0-21swapper/000:25:200
1021550993730,4cyclictest0-21swapper/020:05:250
1021550993721,14cyclictest0-21swapper/023:22:120
102155099371,34cyclictest0-21swapper/020:55:120
102155099371,34cyclictest0-21swapper/000:35:110
102155099371,32cyclictest131ktimers/020:50:280
102155099371,2cyclictest1063953-21ssh23:15:180
102156099364,21cyclictest14-21rcu_preempt21:20:012
1021560993627,4cyclictest0-21swapper/222:35:292
1021550993630,4cyclictest0-21swapper/020:15:110
1021550993629,4cyclictest0-21swapper/000:20:250
102155099361,33cyclictest0-21swapper/023:30:140
102155099361,33cyclictest0-21swapper/000:30:150
102156099353,21cyclictest30-21rcuc/223:50:012
102156099353,21cyclictest30-21rcuc/223:50:012
1021560993527,6cyclictest0-21swapper/219:20:202
1021560993527,5cyclictest1054852-21grep22:20:292
1021560993525,5cyclictest0-21swapper/220:40:182
102156099351,3cyclictest0-21swapper/221:00:022
1021550993529,4cyclictest0-21swapper/019:40:290
102155099351,32cyclictest0-21swapper/022:55:210
1021560993425,6cyclictest0-21swapper/222:15:212
1021560993423,8cyclictest0-21swapper/223:30:002
102156099341,26cyclictest0-21swapper/222:10:182
1021550993425,5cyclictest0-21swapper/021:45:280
1021550993425,5cyclictest0-21swapper/021:45:280
102155099341,3cyclictest0-21swapper/020:10:260
1021560993329,2cyclictest0-21swapper/200:10:192
1021560993326,5cyclictest1062177-21/usr/sbin/munin23:05:272
1021560993325,6cyclictest1056117-21sh22:30:202
1021560993324,6cyclictest0-21swapper/219:10:002
1021560993323,7cyclictest0-21swapper/220:55:012
1021560993319,9cyclictest0-21swapper/221:00:212
102156099331,25cyclictest1063016-21/usr/sbin/munin23:10:122
1021560993225,4cyclictest0-21swapper/223:30:162
1021560993219,8cyclictest0-21swapper/223:15:272
1021560993126,3cyclictest1064716-21/usr/sbin/munin23:20:182
1021560993125,4cyclictest30-21rcuc/223:40:022
1021560993124,4cyclictest1046376-21head21:30:282
1021560993123,6cyclictest1050850-21/usr/sbin/munin22:00:272
1021560993120,7cyclictest0-21swapper/222:25:202
1021560993120,7cyclictest0-21swapper/222:25:202
1021560993116,10cyclictest0-21swapper/223:00:262
102156099311,28cyclictest0-21swapper/222:50:002
102156099305,21cyclictest32-21ksoftirqd/219:30:012
1021560993024,4cyclictest1032060-21kworker/u8:2-events_freezable_power_20:25:232
1021560993022,6cyclictest311ktimers/200:15:292
1021560993022,6cyclictest311ktimers/200:15:292
1021560993021,6cyclictest1071223-21sshd23:56:052
1021560993019,8cyclictest0-21swapper/219:10:272
1021560993018,8cyclictest0-21swapper/219:55:282
102156099294,14cyclictest1076505-21apt-get00:30:012
1021560992924,3cyclictest0-21swapper/200:00:172
1021560992920,7cyclictest1041565-21/usr/sbin/munin21:05:252
1021560992920,7cyclictest1041565-21/usr/sbin/munin21:05:252
102156099291,26cyclictest0-21swapper/223:43:512
1021560992821,3cyclictest0-21swapper/223:50:222
1021560992818,7cyclictest0-21swapper/221:40:162
1021560992721,4cyclictest0-21swapper/221:45:272
1021560992721,4cyclictest0-21swapper/221:45:272
1021560992716,8cyclictest0-21swapper/220:30:272
1021560992610,12cyclictest311ktimers/220:10:122
1021560992516,6cyclictest311ktimers/222:55:012
1021560992513,9cyclictest311ktimers/221:35:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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