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2026-08-16 - 15:48

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 Sun Aug 16, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1845870991001,3cyclictest0-21swapper/007:15:160
1845870999248,39cyclictest0-21swapper/007:45:010
184587299861,28cyclictest1855494-21kworker/u8:3+ext4-rsv-conversion08:10:011
1845872998276,4cyclictest231ktimers/109:35:011
184587099791,3cyclictest1855798-21tune2fs08:05:190
184587099791,3cyclictest0-21swapper/010:35:140
184587099752,5cyclictest1856677-21fschecks_time08:10:210
184587099742,65cyclictest1853618-21grep07:50:280
184587099741,2cyclictest0-21swapper/007:30:220
184587099741,2cyclictest0-21swapper/007:30:220
1845870997369,2cyclictest0-21swapper/008:50:020
184587099722,61cyclictest1871683-21latency_hist09:40:010
184587099711,3cyclictest0-21swapper/011:50:010
184587099701,3cyclictest0-21swapper/009:55:000
184587099691,4cyclictest0-21swapper/011:55:230
184587099672,5cyclictest1859610-21grep08:25:280
184587099672,4cyclictest1870178-21fschecks_count09:30:210
184587099671,5cyclictest1855053-21ssh08:00:210
184587099671,5cyclictest1855053-21ssh08:00:200
184587099671,2cyclictest1881759-21apt-get10:40:050
1845870996523,35cyclictest0-21swapper/007:10:200
184587099651,5cyclictest1888462-21phc2sys11:15:280
184587099651,5cyclictest1863602-21meminfo08:50:250
184587099651,3cyclictest1897679-21dropbear12:10:200
184587099651,3cyclictest0-21swapper/011:50:150
1845872996421,13cyclictest1872594-21/usr/sbin/munin09:45:201
184587099644,2cyclictest0-21swapper/008:45:010
1845870996437,23cyclictest20850irq/208-8000000.ethernet10:15:320
1845870996437,22cyclictest1875104-21wc10:00:010
1845870996422,9cyclictest1880815-21grep10:30:280
184587099641,3cyclictest0-21swapper/011:05:050
184587099641,32cyclictest0-21swapper/008:55:250
184587099641,32cyclictest0-21swapper/008:55:250
184587099631,4cyclictest0-21swapper/009:50:000
184587099631,3cyclictest0-21swapper/008:30:220
184587099631,3cyclictest0-21swapper/008:20:280
184587099631,38cyclictest1849165-21sshd07:25:260
184587099622,4cyclictest1872447-21sort09:45:010
184587099621,56cyclictest1848546-21grep07:20:280
184587099621,4cyclictest1866332-21mailstats09:05:270
184587099621,3cyclictest1902409-21ls12:40:010
184587099621,3cyclictest1902409-21ls12:40:010
184587099621,3cyclictest1886165-21apt-get11:05:010
1845872996119,34cyclictest14-21rcu_preempt08:55:251
1845872996119,34cyclictest14-21rcu_preempt08:55:241
184587099611,5cyclictest1891313-21latency_hist11:35:010
184587099611,3cyclictest1865001-21apt09:00:120
1845870996024,5cyclictest0-21swapper/011:35:170
184587099601,3cyclictest0-21swapper/012:20:150
184587099601,3cyclictest0-21swapper/012:00:240
1845870995917,5cyclictest0-21swapper/012:35:010
184587099591,4cyclictest0-21swapper/010:05:160
184587099591,3cyclictest0-21swapper/010:55:150
184587099591,3cyclictest0-21swapper/010:55:150
1845870995829,4cyclictest0-21swapper/007:45:160
1845870995829,4cyclictest0-21swapper/007:45:150
184587099581,4cyclictest1892574-21fschecks_time11:40:200
184587099581,4cyclictest1877510-21users10:10:290
184587099581,4cyclictest0-21swapper/009:10:200
184587099581,4cyclictest0-21swapper/009:10:200
184587099581,4cyclictest0-21swapper/008:15:160
184587099581,3cyclictest1879500-21df10:25:180
184587099581,3cyclictest0-21swapper/012:25:140
184587099581,3cyclictest0-21swapper/011:25:240
184587099571,3cyclictest0-21swapper/012:05:220
184587099571,3cyclictest0-21swapper/011:10:200
184587099571,3cyclictest0-21swapper/010:45:180
184587099571,3cyclictest0-21swapper/009:25:240
184587099571,31cyclictest1854342-21tail07:55:260
1845870995621,7cyclictest0-21swapper/009:15:290
184587099561,3cyclictest0-21swapper/010:50:220
184587099561,3cyclictest0-21swapper/010:00:140
184587099551,4cyclictest0-21swapper/012:15:180
184587099551,4cyclictest0-21swapper/010:20:200
1845870995430,4cyclictest0-21swapper/007:35:260
184587099541,3cyclictest0-21swapper/008:35:180
1845874995345,4cyclictest1899008-21munin-plugin-st12:20:002
184587299539,25cyclictest22-21rcuc/112:00:011
184587099532,30cyclictest0-21swapper/009:20:130
184587299525,28cyclictest24-21ksoftirqd/112:00:001
1845872995240,8cyclictest0-21swapper/109:00:291
1845872995139,8cyclictest0-21swapper/108:20:001
1845874994923,15cyclictest311ktimers/210:30:022
1845874994921,16cyclictest311ktimers/208:55:132
1845874994921,16cyclictest311ktimers/208:55:132
1845874994917,17cyclictest30-21rcuc/212:15:022
1845872994935,9cyclictest0-21swapper/108:10:301
1845872994834,9cyclictest0-21swapper/111:30:291
1845872994831,11cyclictest0-21swapper/110:50:291
1845872994823,8cyclictest1888997-21/usr/sbin/munin11:20:201
184587299481,16cyclictest0-21swapper/110:30:011
1845870994717,8cyclictest0-21swapper/007:10:020
1845874994627,15cyclictest311ktimers/210:25:122
1845872994630,9cyclictest0-21swapper/112:30:281
1845872994627,12cyclictest0-21swapper/111:45:331
184587499457,17cyclictest1881759-21apt-get10:40:022
1845874994532,9cyclictest1858024-21sh08:20:002
1845874994530,11cyclictest311ktimers/211:25:122
1845874994526,14cyclictest311ktimers/207:30:122
1845874994526,14cyclictest311ktimers/207:30:122
184587299456,2cyclictest0-21swapper/107:30:011
1845872994534,6cyclictest0-21swapper/109:20:291
1845872994532,8cyclictest0-21swapper/108:50:291
1845874994434,4cyclictest0-21swapper/210:15:012
1845872994422,15cyclictest231ktimers/107:15:151
1845872994410,28cyclictest0-21swapper/108:35:281
1845872994331,8cyclictest0-21swapper/110:35:301
1845872994329,9cyclictest0-21swapper/110:05:301
1845874994226,10cyclictest311ktimers/208:20:162
1845872994228,9cyclictest0-21swapper/112:35:191
1845872994228,9cyclictest0-21swapper/112:35:191
1845874994127,9cyclictest0-21swapper/211:05:002
1845874994127,9cyclictest0-21swapper/207:50:012
1845874994127,9cyclictest0-21swapper/207:50:012
1845874994123,12cyclictest311ktimers/210:00:142
184587299416,22cyclictest22-21rcuc/110:10:161
1845872994128,9cyclictest0-21swapper/110:40:301
1845872994123,11cyclictest0-21swapper/108:30:301
1845872994121,13cyclictest231ktimers/111:05:141
1845874994031,5cyclictest0-21swapper/208:40:002
1845874994026,9cyclictest0-21swapper/210:00:022
184587299405,11cyclictest24-21ksoftirqd/111:35:011
1845872994030,6cyclictest0-21swapper/108:45:301
1845872994029,7cyclictest0-21swapper/112:10:291
1845872994028,9cyclictest0-21swapper/110:20:301
1845872994028,8cyclictest0-21swapper/108:25:281
1845874993931,4cyclictest0-21swapper/210:55:002
1845874993926,9cyclictest0-21swapper/208:50:282
1845874993925,8cyclictest0-21swapper/209:15:202
1845874993924,10cyclictest311ktimers/208:30:152
1845872993929,6cyclictest0-21swapper/110:55:291
1845872993929,6cyclictest0-21swapper/110:55:291
1845872993928,8cyclictest0-21swapper/107:55:301
184587299391,7cyclictest0-21swapper/107:55:001
1845874993831,4cyclictest1902378-21sh12:40:002
1845874993831,4cyclictest1902378-21sh12:39:592
1845874993830,5cyclictest14-21rcu_preempt07:30:002
1845874993826,8cyclictest1868958-21grep09:20:292
1845874993826,7cyclictest1888658-21grep11:15:302
1845874993826,7cyclictest0-21swapper/212:00:312
1845874993824,12cyclictest311ktimers/210:10:012
184587299388,2cyclictest0-21swapper/107:20:241
1845872993826,8cyclictest0-21swapper/110:00:301
1845872993823,11cyclictest0-21swapper/108:40:301
184587499377,14cyclictest30-21rcuc/207:25:022
1845874993729,4cyclictest0-21swapper/212:25:282
184587499372,28cyclictest1897053-21ps12:05:272
1845874993718,10cyclictest0-21swapper/210:35:312
184587499371,2cyclictest0-21swapper/212:35:002
184587299379,19cyclictest1849699-21/usr/sbin/munin07:30:191
184587299379,19cyclictest1849699-21/usr/sbin/munin07:30:191
1845872993725,7cyclictest0-21swapper/111:25:291
184587299371,30cyclictest1885526-21/usr/sbin/munin11:00:301
184587099371,34cyclictest0-21swapper/011:20:200
1845874993623,9cyclictest0-21swapper/209:25:282
1845874993623,8cyclictest0-21swapper/207:39:592
1845874993622,7cyclictest0-21swapper/211:30:292
1845872993627,5cyclictest0-21swapper/112:05:221
1845872993625,8cyclictest0-21swapper/110:20:001
1845872993624,7cyclictest0-21swapper/111:45:011
1845872993618,12cyclictest231ktimers/109:50:161
184587299361,2cyclictest0-21swapper/110:25:281
1845874993526,5cyclictest1854542-21unixbench_multi07:55:302
1845874993526,5cyclictest1853717-21munin-plugin-st07:55:002
1845874993526,4cyclictest0-21swapper/209:05:252
1845874993520,11cyclictest311ktimers/211:05:142
184587499351,28cyclictest1872659-21df09:45:192
1845872993529,4cyclictest167450irq/126-8000000.ethernet-tx109:15:291
1845872993525,5cyclictest0-21swapper/112:15:221
1845872993523,8cyclictest0-21swapper/110:45:311
1845872993523,8cyclictest0-21swapper/109:35:271
1845872993520,9cyclictest0-21swapper/107:40:181
1845874993422,9cyclictest311ktimers/211:50:132
1845874993420,8cyclictest0-21swapper/208:05:272
1845874993416,15cyclictest0-21swapper/209:10:282
1845874993416,15cyclictest0-21swapper/209:10:282
1845874993414,9cyclictest32-21ksoftirqd/212:00:012
184587499341,27cyclictest0-21swapper/207:15:072
184587299345,14cyclictest1858245-21/usr/sbin/munin08:20:211
1845872993430,2cyclictest1874272-21/usr/sbin/munin09:55:201
1845872993425,5cyclictest0-21swapper/109:25:291
184587299341,27cyclictest0-21swapper/111:10:211
1845874993323,7cyclictest1893759-21grep11:45:322
1845872993323,5cyclictest0-21swapper/107:10:291
1845872993313,14cyclictest231ktimers/107:45:151
1845872993313,14cyclictest231ktimers/107:45:151
184587299331,26cyclictest0-21swapper/111:15:121
1845874993226,3cyclictest1872347-21unixbench_singl09:40:292
1845874993221,8cyclictest0-21swapper/207:10:292
184587499321,25cyclictest0-21swapper/209:35:162
184587299321,2cyclictest0-21swapper/109:45:011
1845874993112,4cyclictest8321systemd-network10:57:272
1845874993112,4cyclictest8321systemd-network10:57:272
184587299313,2cyclictest0-21swapper/112:25:261
1845872993110,14cyclictest231ktimers/109:05:111
184587499303,15cyclictest32-21ksoftirqd/210:45:022
1845874993024,3cyclictest14-21rcu_preempt10:20:292
1845874993020,6cyclictest0-21swapper/212:20:292
1845874993016,9cyclictest0-21swapper/207:40:282
1845874993016,8cyclictest0-21swapper/208:45:292
1845874993014,4cyclictest8321systemd-network08:00:222
1845874993014,4cyclictest8321systemd-network08:00:212
184587499301,27cyclictest0-21swapper/211:40:162
1845872993019,8cyclictest0-21swapper/107:35:291
1845874992921,4cyclictest0-21swapper/211:35:292
1845874992919,6cyclictest1861787-21grep08:40:222
1845874992919,6cyclictest1859656-21grep08:25:292
1845874992919,6cyclictest0-21swapper/209:50:292
1845872992919,6cyclictest0-21swapper/111:50:301
1845872992918,7cyclictest0-21swapper/108:00:261
1845872992918,7cyclictest0-21swapper/108:00:261
1845874992821,5cyclictest0-21swapper/211:20:282
1845874992819,5cyclictest0-21swapper/207:10:022
1845874992817,8cyclictest30-21rcuc/209:30:222
1845874992817,6cyclictest1857121-21grep08:10:292
1845874992814,10cyclictest311ktimers/211:10:142
1845874992619,4cyclictest0-21swapper/210:15:242
1845874992618,5cyclictest30-21rcuc/209:00:252
1845872992617,6cyclictest1867213-21grep09:10:301
1845872992617,6cyclictest1867213-21grep09:10:301
1845872992616,5cyclictest0-21swapper/112:20:161
1845872992316,3cyclictest0-21swapper/107:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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