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2026-03-24 - 17:25

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 the 792 highest latencies:
System rackeslot6s.osadl.org (updated Tue Mar 24, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
386353899715,19cyclictest0-21swapper/110:50:021
3863538996828,34cyclictest0-21swapper/109:40:291
3863538996728,33cyclictest0-21swapper/112:15:201
3863538996631,30cyclictest0-21swapper/111:55:261
3863538996628,33cyclictest0-21swapper/109:55:001
3863538996415,8cyclictest3874200-21/usr/sbin/munin08:10:201
3863538996321,34cyclictest0-21swapper/112:30:281
3863538996229,29cyclictest0-21swapper/108:35:001
3863538996114,39cyclictest0-21swapper/109:10:011
3863538995922,30cyclictest0-21swapper/112:05:271
3863538995917,4cyclictest0-21swapper/111:20:281
3863538995821,32cyclictest0-21swapper/108:35:291
3863538995821,32cyclictest0-21swapper/108:35:281
3863538995821,28cyclictest0-21swapper/107:25:281
3863538995618,4cyclictest0-21swapper/112:20:261
3863538995618,32cyclictest0-21swapper/107:35:271
3863538995618,31cyclictest0-21swapper/107:50:281
3863538995610,9cyclictest3903680-21unixbench_singl11:00:291
386353899552,11cyclictest3875566-21grep08:15:311
386353899551,29cyclictest3876740-21/usr/sbin/munin08:25:251
3863535995513,5cyclictest0-21swapper/011:10:000
386353899546,14cyclictest0-21swapper/109:30:241
3863538995418,4cyclictest0-21swapper/111:50:011
386353899541,4cyclictest0-21swapper/109:15:011
3863538995414,5cyclictest0-21swapper/109:55:271
386353899541,22cyclictest1660-21snmpd08:24:341
3863538995329,19cyclictest3904570-21munin-plugin-st11:10:001
3863538995325,22cyclictest0-21swapper/108:40:201
386353899531,24cyclictest0-21swapper/107:30:271
3863539995244,5cyclictest3873936-21unixbench_singl08:05:292
3863538995228,15cyclictest0-21swapper/110:10:001
3863538995227,21cyclictest3872117-21grep07:55:291
3863538995216,4cyclictest0-21swapper/110:20:261
3863538995214,6cyclictest0-21swapper/111:35:211
386353599521,18cyclictest0-21swapper/010:10:010
3863539995135,11cyclictest0-21swapper/211:35:012
3863538995118,28cyclictest0-21swapper/111:45:011
3863535995143,5cyclictest0-21swapper/008:25:000
3863538995015,10cyclictest0-21swapper/112:10:281
386353899501,24cyclictest0-21swapper/107:49:251
386353899501,24cyclictest0-21swapper/107:49:251
386353599501,45cyclictest1660-21snmpd11:25:230
386353599501,45cyclictest1660-21snmpd11:25:230
3863535995012,34cyclictest0-21swapper/011:15:280
386353899498,12cyclictest0-21swapper/108:05:011
386353899495,12cyclictest0-21swapper/108:55:281
386353899491,2cyclictest0-21swapper/108:55:011
386353999484,38cyclictest30-21rcuc/212:20:012
3863539994842,2cyclictest0-21swapper/209:35:012
3863539994839,4cyclictest3901197-21munin-plugin-st10:50:002
3863538994835,10cyclictest3885814-21sendmail09:20:001
3863538994824,20cyclictest0-21swapper/110:10:201
3863538994814,29cyclictest0-21swapper/107:15:001
386353899481,2cyclictest0-21swapper/108:05:161
3863539994739,5cyclictest3872153-21grep07:55:302
3863538994717,5cyclictest3900268-21grep10:40:281
386353899471,2cyclictest0-21swapper/110:35:231
3863535994734,7cyclictest3915541-21unixbench_multi12:10:300
3863535994731,13cyclictest0-21swapper/008:55:000
3863538994626,12cyclictest0-21swapper/110:15:281
3863538994616,25cyclictest0-21swapper/110:50:211
3863538994614,8cyclictest3890637-21sshd09:45:251
386353899461,27cyclictest0-21swapper/110:55:271
3863538994611,7cyclictest0-21swapper/111:35:011
3863535994638,6cyclictest131ktimers/007:30:000
3863535994637,6cyclictest3872132-21grep07:55:300
386353599461,38cyclictest3898761-21latency_hist10:35:010
386353599461,38cyclictest3898761-21latency_hist10:35:010
3863539994533,8cyclictest0-21swapper/212:40:002
3863538994519,3cyclictest0-21swapper/110:04:361
3863538994517,6cyclictest231ktimers/107:40:231
3863538994516,8cyclictest0-21swapper/109:40:011
3863535994538,4cyclictest167350irq/118-8000000.ethernet-tx010:50:190
3863535994535,5cyclictest3919738-21grep12:35:260
3863535994528,15cyclictest167350irq/118-8000000.ethernet-tx007:35:240
386353599451,7cyclictest0-21swapper/010:45:010
386353599451,42cyclictest0-21swapper/007:15:240
3863538994414,4cyclictest0-21swapper/108:50:011
3863535994435,7cyclictest0-21swapper/007:30:140
386353599442,5cyclictest3888350-21munin-run09:35:000
386353999434,34cyclictest32-21ksoftirqd/211:35:212
3863539994333,6cyclictest0-21swapper/210:15:002
3863539994333,5cyclictest14-21rcu_preempt10:55:212
3863539994330,9cyclictest0-21swapper/212:30:202
3863539994318,10cyclictest3888330-21kworker/u8:0+flush-179:9609:55:042
3863538994325,14cyclictest0-21swapper/109:00:281
3863535994337,2cyclictest0-21swapper/012:20:190
386353599433,5cyclictest3909039-21df11:35:180
3863535994324,9cyclictest0-21swapper/010:50:010
3863539994235,4cyclictest167550irq/134-8000000.ethernet-tx212:00:012
3863539994232,7cyclictest3870427-21grep07:45:272
3863539994232,7cyclictest3870427-21grep07:45:272
3863539994232,5cyclictest3902035-21munin-plugin-st10:55:002
3863539994217,14cyclictest311ktimers/210:25:112
3863535994234,5cyclictest0-21swapper/009:10:010
386353599421,38cyclictest0-21swapper/009:25:250
3863539994134,4cyclictest0-21swapper/210:25:012
3863539994131,6cyclictest0-21swapper/210:30:292
3863539994131,6cyclictest0-21swapper/210:30:292
3863539994130,6cyclictest0-21swapper/210:15:282
3863539994129,8cyclictest0-21swapper/208:35:292
3863539994129,8cyclictest0-21swapper/208:35:282
386353899417,10cyclictest3913001-21apt-get12:00:021
386353599412,5cyclictest3892364-21irqstats09:55:240
386353599412,3cyclictest3893115-21fschecks_time10:00:200
386353599411,8cyclictest3878132-21unixbench_multi08:30:260
386353599411,37cyclictest3903293-21/usr/sbin/munin11:00:220
386353599411,37cyclictest0-21swapper/012:15:250
3863539994031,5cyclictest3906258-21sendmail11:20:002
3863539994027,10cyclictest311ktimers/209:15:132
3863539994026,8cyclictest0-21swapper/207:30:002
3863539994024,11cyclictest0-21swapper/208:15:302
3863539994021,11cyclictest0-21swapper/209:40:272
3863539994013,14cyclictest3899716-21/usr/sbin/munin10:40:172
3863535994033,4cyclictest0-21swapper/012:00:150
3863535994033,4cyclictest0-21swapper/008:55:250
3863535994032,5cyclictest167350irq/118-8000000.ethernet-tx008:05:020
3863535994030,6cyclictest3872579-21grep08:00:220
3863535994030,5cyclictest0-21swapper/010:15:280
386353599402,4cyclictest0-21swapper/009:45:010
3863535994017,6cyclictest167350irq/118-8000000.ethernet-tx011:00:000
386353599401,37cyclictest0-21swapper/007:10:150
386353599401,36cyclictest3906518-21grep11:20:150
386353599401,36cyclictest0-21swapper/010:29:590
3863539993930,5cyclictest0-21swapper/209:20:262
3863539993927,9cyclictest311ktimers/212:25:132
3863539993927,8cyclictest3891600-21ptp4l-jitter09:50:272
3863539993927,8cyclictest3877279-21grep08:25:292
3863535993933,4cyclictest20850irq/208-8000000.ethernet12:25:250
3863535993931,4cyclictest0-21swapper/010:20:280
386353599392,3cyclictest0-21swapper/007:55:010
386353599391,36cyclictest0-21swapper/011:40:090
3863539993820,10cyclictest0-21swapper/207:15:002
3863535993830,5cyclictest0-21swapper/008:15:290
3863535993828,7cyclictest3914711-21grep12:05:280
386353599381,35cyclictest0-21swapper/011:34:240
386353599381,35cyclictest0-21swapper/010:10:180
386353599381,35cyclictest0-21swapper/009:15:290
3863539993726,7cyclictest0-21swapper/208:05:012
3863539993725,7cyclictest0-21swapper/207:20:282
3863539993721,9cyclictest0-21swapper/211:55:012
386353999372,15cyclictest3877579-21/usr/sbin/munin08:30:162
3863539993720,9cyclictest0-21swapper/208:55:262
3863539993718,15cyclictest3898859-21/usr/sbin/munin10:35:182
386353599374,9cyclictest0-21swapper/009:55:010
3863535993730,5cyclictest0-21swapper/008:10:250
3863535993730,4cyclictest20850irq/208-8000000.ethernet09:45:170
3863535993730,4cyclictest20850irq/208-8000000.ethernet09:00:170
3863535993730,4cyclictest20850irq/208-8000000.ethernet07:45:230
3863535993730,4cyclictest20850irq/208-8000000.ethernet07:45:230
3863535993727,6cyclictest3888735-21dropbear09:35:190
3863535993726,6cyclictest0-21swapper/008:40:290
3863535993720,8cyclictest3913192-21latency_hist12:00:020
386353599371,34cyclictest0-21swapper/011:50:100
3863539993624,7cyclictest0-21swapper/211:20:282
3863539993624,6cyclictest0-21swapper/208:10:202
3863535993630,3cyclictest167350irq/118-8000000.ethernet-tx008:35:130
3863535993630,3cyclictest167350irq/118-8000000.ethernet-tx008:35:130
3863535993629,4cyclictest20850irq/208-8000000.ethernet12:30:170
386353599362,30cyclictest3884865-21grep09:10:300
3863539993525,7cyclictest0-21swapper/211:45:272
3863539993525,6cyclictest30-21rcuc/208:20:282
3863539993524,7cyclictest0-21swapper/212:05:272
3863539993524,6cyclictest3916779-21/usr/sbin/munin12:20:222
3863539993523,7cyclictest0-21swapper/208:45:262
3863539993523,6cyclictest0-21swapper/209:10:262
3863539993521,9cyclictest30-21rcuc/208:50:132
3863535993529,4cyclictest0-21swapper/007:40:110
3863535993528,4cyclictest0-21swapper/010:35:170
3863535993528,4cyclictest0-21swapper/008:45:170
3863535993519,14cyclictest0-21swapper/008:25:110
386353599351,32cyclictest0-21swapper/009:20:150
386353599351,32cyclictest0-21swapper/007:22:590
386353599351,31cyclictest3863544-21latency_hist07:10:010
386353599351,31cyclictest3863544-21latency_hist07:10:010
3863539993426,4cyclictest3905097-21phc2sys11:10:272
3863539993426,4cyclictest14-21rcu_preempt12:10:222
3863539993424,5cyclictest0-21swapper/209:00:302
3863539993423,7cyclictest30-21rcuc/207:10:012
3863539993423,7cyclictest30-21rcuc/207:10:002
3863539993421,9cyclictest0-21swapper/212:05:012
3863538993419,11cyclictest0-21swapper/107:20:001
3863535993425,5cyclictest0-21swapper/011:10:290
386353599341,31cyclictest0-21swapper/011:45:190
3863539993321,10cyclictest311ktimers/211:05:132
3863539993224,5cyclictest3888637-21/usr/sbin/munin09:35:182
3863539993220,8cyclictest0-21swapper/209:05:282
3863539993219,8cyclictest0-21swapper/207:40:242
3863538993224,5cyclictest0-21swapper/109:25:211
386353999312,4cyclictest3865469-21munin-run07:20:002
3863539993119,9cyclictest0-21swapper/207:50:292
3863539993111,13cyclictest3890336-21/usr/sbin/munin09:45:192
3863538993120,6cyclictest0-21swapper/112:35:281
386353899311,4cyclictest0-21swapper/107:10:021
386353899311,4cyclictest0-21swapper/107:10:011
3863539993023,4cyclictest3879464-21grep08:40:212
3863539993022,4cyclictest0-21swapper/210:05:272
3863539993019,7cyclictest3868473-21kernelversion07:35:232
3863539993016,9cyclictest0-21swapper/207:30:282
3863538993020,4cyclictest0-21swapper/107:20:211
3863539992923,4cyclictest3903148-21df11:00:172
3863539992918,8cyclictest0-21swapper/211:40:252
3863538992918,6cyclictest231ktimers/111:50:171
3863539992815,8cyclictest0-21swapper/209:25:302
3863538992821,4cyclictest47-21kauditd11:15:021
3863538992817,7cyclictest0-21swapper/110:30:291
3863538992817,7cyclictest0-21swapper/110:30:291
386353899281,2cyclictest0-21swapper/111:15:011
386353999271,24cyclictest0-21swapper/210:04:332
3863538992721,4cyclictest0-21swapper/111:26:331
3863538992721,4cyclictest0-21swapper/111:26:331
3863538992717,7cyclictest231ktimers/110:25:181
386353899271,24cyclictest0-21swapper/112:25:181
3863539992611,12cyclictest311ktimers/211:25:162
3863539992611,12cyclictest311ktimers/211:25:152
3863538992616,6cyclictest0-21swapper/109:20:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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