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2026-03-21 - 18:31

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 Sat Mar 21, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1211127997665,4cyclictest0-21swapper/009:50:100
1211131997329,13cyclictest0-21swapper/207:50:012
1211131997329,13cyclictest0-21swapper/207:50:012
121112899731,31cyclictest1228623-21apt-key08:50:011
121113199661,27cyclictest0-21swapper/208:40:182
121113199651,16cyclictest0-21swapper/209:15:012
121112799654,22cyclictest15-21rcuc/007:40:020
1211127996421,40cyclictest15-21rcuc/008:20:190
1211128996211,17cyclictest1231438-21/usr/sbin/munin09:05:191
121112799603,19cyclictest15-21rcuc/011:00:010
1211127995950,7cyclictest131ktimers/007:15:160
121112899575,21cyclictest1217578-21/usr/sbin/munin07:45:191
121112899575,21cyclictest1217578-21/usr/sbin/munin07:45:191
1211127995631,16cyclictest131ktimers/010:15:110
121112899551,28cyclictest0-21swapper/112:10:161
1211131995342,6cyclictest1262777-21grep12:05:282
1211127995316,20cyclictest20650irq/252-8000000.ethernet11:50:010
121112799531,3cyclictest1228721-21latency_hist08:50:020
121112899526,14cyclictest14-21rcu_preempt11:20:021
1211127995244,4cyclictest0-21swapper/011:55:280
1211131995144,5cyclictest0-21swapper/211:45:012
1211128995119,20cyclictest0-21swapper/107:55:191
1211131994934,9cyclictest0-21swapper/209:40:272
1211131994839,5cyclictest1230383-21munin-plugin-st09:00:012
1211131994833,9cyclictest0-21swapper/210:55:012
1211131994831,10cyclictest0-21swapper/209:55:302
1211128994833,10cyclictest1233765-21sendmail09:20:001
121112799484,7cyclictest1218431-21grep07:50:010
121112799484,7cyclictest1218431-21grep07:50:000
1211127994830,9cyclictest0-21swapper/008:55:020
1211127994827,15cyclictest131ktimers/010:40:130
121112799476,14cyclictest15-21rcuc/009:40:020
1211127994729,15cyclictest15-21rcuc/010:05:150
1211127994714,29cyclictest0-21swapper/009:30:270
121112799471,33cyclictest0-21swapper/012:05:230
1211127994712,6cyclictest0-21swapper/007:30:020
1211131994636,5cyclictest1220006-21apt-get08:00:012
1211131994636,5cyclictest0-21swapper/208:05:272
1211131994636,5cyclictest0-21swapper/208:05:272
1211127994638,4cyclictest167350irq/118-8000000.ethernet-tx009:40:260
1211131994530,8cyclictest0-21swapper/209:25:302
1211131994527,8cyclictest0-21swapper/210:15:002
1211131994524,15cyclictest0-21swapper/209:35:112
1211127994534,8cyclictest1220008-21sendmail08:00:010
1211131994435,5cyclictest0-21swapper/210:30:002
1211131994432,8cyclictest0-21swapper/207:25:282
1211131994431,8cyclictest0-21swapper/207:20:262
1211131994429,10cyclictest0-21swapper/212:10:292
1211131994429,10cyclictest0-21swapper/211:25:292
1211131994428,8cyclictest0-21swapper/208:15:272
1211128994435,5cyclictest1256831-21munin-plugin-st11:35:001
1211127994435,6cyclictest20650irq/252-8000000.ethernet12:30:240
121112799443,38cyclictest0-21swapper/012:00:060
121112799441,2cyclictest1225492-21dropbear08:30:190
121112799441,2cyclictest1225492-21dropbear08:30:180
121113199436,33cyclictest0-21swapper/211:20:012
121113199436,33cyclictest0-21swapper/211:20:012
1211131994327,6cyclictest1245880-21/usr/sbin/munin10:30:182
1211131994325,10cyclictest0-21swapper/211:10:272
121112899437,16cyclictest1265572-21/usr/sbin/munin12:25:191
121112899437,16cyclictest1265572-21/usr/sbin/munin12:25:191
1211128994332,8cyclictest1267901-21sendmail12:40:001
1211128994326,8cyclictest0-21swapper/109:20:281
121112799437,2cyclictest0-21swapper/011:20:010
121112799437,2cyclictest0-21swapper/011:20:010
1211127994338,2cyclictest0-21swapper/010:35:150
1211127994336,4cyclictest167350irq/118-8000000.ethernet-tx010:10:150
121112799431,39cyclictest1231143-21unixbench_multi09:00:280
1211127994313,7cyclictest15-21rcuc/011:35:170
1211127994312,29cyclictest0-21swapper/009:25:230
1211131994234,4cyclictest1232079-21munin-plugin-st09:10:012
1211131994230,8cyclictest0-21swapper/207:10:282
1211131994230,8cyclictest0-21swapper/207:10:282
1211131994226,8cyclictest0-21swapper/207:30:282
1211131994215,18cyclictest1224224-21unixbench_multi08:20:282
1211131994215,11cyclictest1248419-21/usr/sbin/munin10:45:182
1211128994233,5cyclictest47-21kauditd08:05:001
121112899422,4cyclictest0-21swapper/110:45:011
1211128994223,13cyclictest0-21swapper/108:15:261
1211127994234,4cyclictest167350irq/118-8000000.ethernet-tx010:25:000
1211127994234,4cyclictest167350irq/118-8000000.ethernet-tx010:25:000
121112799422,4cyclictest1238454-21irqstats09:45:230
121112799422,4cyclictest1238454-21irqstats09:45:230
121112799421,4cyclictest0-21swapper/009:15:000
121112799421,39cyclictest0-21swapper/010:25:200
1211131994129,7cyclictest0-21swapper/212:30:292
1211131994127,10cyclictest0-21swapper/210:40:112
1211131994120,13cyclictest1264356-21/usr/sbin/munin12:15:272
1211131994120,11cyclictest1241151-21/usr/sbin/munin10:00:282
1211131994115,13cyclictest0-21swapper/210:20:152
1211131994115,13cyclictest0-21swapper/210:20:152
1211131994115,12cyclictest311ktimers/210:15:142
1211131994115,11cyclictest1223445-21kworker/u8:0+flush-179:9608:50:052
1211127994134,4cyclictest20650irq/252-8000000.ethernet11:30:230
1211127994134,4cyclictest167350irq/118-8000000.ethernet-tx012:10:270
1211127994134,4cyclictest14-21rcu_preempt08:10:210
121112799411,38cyclictest0-21swapper/008:15:270
1211131994031,5cyclictest1256792-21grep11:30:272
1211131994030,7cyclictest1222548-21grep08:10:282
1211131994030,7cyclictest0-21swapper/211:20:282
1211131994028,8cyclictest0-21swapper/212:25:282
1211131994028,8cyclictest0-21swapper/212:25:282
1211131994027,9cyclictest0-21swapper/211:00:282
1211131994021,11cyclictest1261355-21apt-get12:00:152
1211131994019,10cyclictest0-21swapper/211:55:112
1211128994032,5cyclictest1211122-21cyclictest10:50:001
1211128994032,4cyclictest0-21swapper/111:40:281
1211128994019,13cyclictest0-21swapper/109:10:281
1211128994016,14cyclictest231ktimers/111:00:111
1211127994033,4cyclictest0-21swapper/009:15:200
1211127994022,15cyclictest0-21swapper/011:25:290
121112799401,37cyclictest0-21swapper/011:50:170
121112799401,37cyclictest0-21swapper/010:30:120
121112799401,37cyclictest0-21swapper/009:05:210
121112799401,37cyclictest0-21swapper/008:05:180
121112799401,37cyclictest0-21swapper/008:05:180
121112799401,36cyclictest1251973-21/usr/sbin/munin11:05:110
121112799401,36cyclictest0-21swapper/007:40:220
1211127994012,26cyclictest14-21rcu_preempt12:35:190
1211131993927,9cyclictest1267327-21/usr/sbin/munin12:35:182
1211131993926,8cyclictest0-21swapper/212:20:302
1211131993926,8cyclictest0-21swapper/209:20:102
1211131993926,5cyclictest0-21swapper/210:35:262
1211131993925,11cyclictest1236274-21sshd09:30:542
1211131993924,11cyclictest1231080-21/usr/sbin/munin09:00:272
121113199392,11cyclictest32-21ksoftirqd/207:10:012
1211131993920,13cyclictest1224511-21munin-node08:25:122
1211131993918,10cyclictest0-21swapper/209:45:152
1211131993918,10cyclictest0-21swapper/209:45:152
1211131993917,13cyclictest1220806-21/usr/sbin/munin08:00:282
1211131993913,17cyclictest1228213-21phc2sys08:45:262
1211128993931,5cyclictest0-21swapper/112:00:001
1211128993926,9cyclictest0-21swapper/111:55:001
1211128993924,10cyclictest0-21swapper/110:55:021
1211128993923,10cyclictest231ktimers/107:25:131
1211128993921,9cyclictest0-21swapper/107:20:271
1211127993932,4cyclictest0-21swapper/012:25:250
1211127993932,4cyclictest0-21swapper/012:25:250
1211127993930,6cyclictest1241301-21grep10:00:290
1211127993927,9cyclictest1209480-21kworker/u8:1-ext4-rsv-conversion07:25:010
1211127993927,8cyclictest0-21swapper/012:15:200
121112799392,35cyclictest0-21swapper/009:55:210
121112799391,36cyclictest0-21swapper/008:40:260
121112799391,36cyclictest0-21swapper/007:10:160
121112799391,36cyclictest0-21swapper/007:10:150
1211131993831,4cyclictest1250400-21/usr/sbin/munin10:55:232
1211131993826,8cyclictest0-21swapper/209:55:002
1211131993822,9cyclictest1226739-21sed08:35:292
1211131993820,10cyclictest1216863-21lsblk07:40:202
1211131993817,8cyclictest1239661-21kworker/u8:3+flush-179:9610:05:052
1211131993815,16cyclictest1233570-21sendmail_mailqu09:15:262
1211128993830,4cyclictest1243142-21munin-plugin-st10:15:011
1211128993829,5cyclictest0-21swapper/111:15:281
1211128993829,5cyclictest0-21swapper/111:15:281
1211128993829,4cyclictest1223445-21kworker/u8:0+events_power_efficient08:50:291
1211128993822,10cyclictest0-21swapper/111:10:251
121112799388,26cyclictest0-21swapper/007:30:200
1211127993819,14cyclictest131ktimers/008:25:140
121112799381,35cyclictest0-21swapper/009:20:180
121112799381,35cyclictest0-21swapper/008:00:040
1211131993726,9cyclictest311ktimers/207:15:122
1211128993727,5cyclictest0-21swapper/108:55:181
1211128993725,6cyclictest0-21swapper/108:40:271
1211128993724,8cyclictest0-21swapper/110:25:001
1211128993724,8cyclictest0-21swapper/110:25:001
1211128993723,9cyclictest0-21swapper/109:35:281
1211128993720,8cyclictest0-21swapper/108:25:301
1211128993718,10cyclictest0-21swapper/108:20:271
1211127993729,5cyclictest20850irq/208-8000000.ethernet10:55:250
1211127993727,7cyclictest131ktimers/007:50:040
121112799371,34cyclictest0-21swapper/008:35:150
1211131993618,10cyclictest1218508-21apt-get07:50:172
1211131993616,13cyclictest1258872-21lsblk11:45:192
1211131993612,17cyclictest1215939-21grep07:35:182
121112899368,22cyclictest22-21rcuc/112:30:291
1211128993626,5cyclictest1264423-21tail12:15:271
1211128993625,7cyclictest0-21swapper/107:15:011
1211128993625,7cyclictest0-21swapper/107:15:011
121112899362,28cyclictest1660-21snmpd11:06:561
1211128993617,13cyclictest231ktimers/109:50:121
1211128993614,16cyclictest231ktimers/110:35:101
1211127993627,5cyclictest0-21swapper/011:20:280
1211127993621,12cyclictest131ktimers/012:20:130
121112799361,2cyclictest0-21swapper/011:45:010
1211131993521,7cyclictest1257362-21phc2sys11:35:252
1211131993520,9cyclictest1259827-21/usr/sbin/munin11:50:232
1211131993517,13cyclictest167550irq/134-8000000.ethernet-tx211:06:102
1211128993523,7cyclictest0-21swapper/110:00:291
1211128993522,8cyclictest0-21swapper/111:45:201
1211128993521,8cyclictest0-21swapper/107:35:171
1211128993518,11cyclictest0-21swapper/109:25:301
1211127993528,4cyclictest0-21swapper/011:14:040
1211127993527,4cyclictest0-21swapper/010:45:280
1211128993424,8cyclictest0-21swapper/110:30:011
1211128993420,8cyclictest1653-21lldpd08:05:251
1211128993420,8cyclictest1653-21lldpd08:05:251
1211128993420,8cyclictest0-21swapper/110:35:001
1211128993418,8cyclictest0-21swapper/109:55:301
1211128993416,10cyclictest0-21swapper/111:25:261
121112899341,27cyclictest0-21swapper/107:50:231
121112899341,26cyclictest1222589-21sshd08:10:551
1211127993420,12cyclictest0-21swapper/010:50:120
121112799341,2cyclictest0-21swapper/009:00:020
1211131993313,11cyclictest1225518-21fschecks_time08:30:192
1211131993313,11cyclictest1225518-21fschecks_time08:30:192
1211128993325,4cyclictest0-21swapper/107:20:001
1211128993322,7cyclictest0-21swapper/109:00:271
1211128993321,8cyclictest0-21swapper/111:35:281
1211128993317,10cyclictest0-21swapper/109:30:281
1211128993226,4cyclictest0-21swapper/110:05:261
1211128993223,6cyclictest0-21swapper/112:00:251
1211128993221,8cyclictest0-21swapper/110:55:281
1211127993221,7cyclictest0-21swapper/007:10:000
1211128993124,3cyclictest1237773-21ptp4l-jitter09:40:251
121112899311,25cyclictest0-21swapper/108:35:261
1211128993021,6cyclictest1217337-21grep07:40:281
1211128993016,10cyclictest0-21swapper/107:30:291
1211128992920,7cyclictest1238194-21/usr/sbin/munin09:45:261
1211128992920,7cyclictest1238194-21/usr/sbin/munin09:45:251
1211128992719,6cyclictest0-21swapper/110:20:011
121112899271,4cyclictest0-21swapper/107:10:011
121112899271,23cyclictest0-21swapper/112:21:181
1211128992616,7cyclictest0-21swapper/112:05:191
1211128992615,7cyclictest0-21swapper/108:30:271
1211128992615,7cyclictest0-21swapper/108:30:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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