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2026-03-27 - 10:39

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 Fri Mar 27, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1873773997519,18cyclictest1902397-21rm22:10:010
1873773996963,3cyclictest0-21swapper/000:20:120
187377399616,19cyclictest15-21rcuc/020:30:010
1873773996152,6cyclictest0-21swapper/019:35:120
1873777995537,9cyclictest30-21rcuc/220:50:012
1873773995335,15cyclictest167350irq/118-8000000.ethernet-tx022:25:210
1873773995043,4cyclictest167350irq/118-8000000.ethernet-tx020:45:170
187377399502,46cyclictest0-21swapper/023:55:300
187377399502,46cyclictest0-21swapper/023:55:300
1873777994940,5cyclictest1915726-21apt-key23:35:012
1873776994941,5cyclictest1908868-21munin-plugin-st22:55:001
1873776994941,5cyclictest1908868-21munin-plugin-st22:55:001
1873776994915,29cyclictest0-21swapper/119:25:261
187377399491,7cyclictest1882441-21tail19:55:270
1873777994835,6cyclictest0-21swapper/220:20:292
1873776994834,10cyclictest0-21swapper/119:55:001
1873773994836,8cyclictest0-21swapper/020:25:010
1873773994818,25cyclictest0-21swapper/021:05:000
1873777994736,5cyclictest0-21swapper/219:20:012
1873773994732,11cyclictest0-21swapper/022:45:290
187377399472,6cyclictest0-21swapper/023:15:110
1873777994638,5cyclictest1882551-21munin-plugin-st20:00:002
1873777994634,8cyclictest0-21swapper/222:30:002
1873776994638,5cyclictest1905404-21munin-plugin-st22:35:011
1873773994639,4cyclictest167350irq/118-8000000.ethernet-tx023:45:230
1873773994637,5cyclictest0-21swapper/022:40:000
1873773994637,5cyclictest0-21swapper/022:40:000
1873773994629,15cyclictest131ktimers/019:20:170
1873773994629,15cyclictest131ktimers/019:20:170
187377399462,4cyclictest1926958-21munin-run00:40:000
187377699452,20cyclictest1921994-21/usr/sbin/munin00:10:181
1873773994538,4cyclictest20850irq/208-8000000.ethernet22:20:000
187377399451,42cyclictest0-21swapper/000:00:220
1873777994435,5cyclictest0-21swapper/219:55:012
187377799441,18cyclictest0-21swapper/222:45:012
1873776994436,4cyclictest0-21swapper/100:05:311
1873776994434,6cyclictest0-21swapper/119:20:001
1873773994438,4cyclictest0-21swapper/023:35:050
1873773994437,4cyclictest20650irq/252-8000000.ethernet21:30:240
1873773994437,4cyclictest167350irq/118-8000000.ethernet-tx019:45:010
1873773994431,8cyclictest0-21swapper/019:10:280
1873777994335,4cyclictest0-21swapper/221:30:292
1873773994335,3cyclictest1880741-21xargs19:45:280
1873773994317,2cyclictest0-21swapper/019:20:010
1873777994233,5cyclictest0-21swapper/222:10:022
1873777994228,9cyclictest0-21swapper/220:00:282
1873777994228,9cyclictest0-21swapper/220:00:282
1873776994233,5cyclictest0-21swapper/123:40:281
1873776994232,7cyclictest1924453-21apt-key00:25:011
1873776994232,5cyclictest0-21swapper/119:45:281
1873776994231,6cyclictest0-21swapper/120:25:281
1873773994236,3cyclictest20650irq/252-8000000.ethernet21:20:170
1873773994232,7cyclictest1891839-21munin-plugin-st20:55:000
1873773994232,7cyclictest1545605-1kworker/0:2H+kblockd19:10:000
187377399421,39cyclictest0-21swapper/022:50:200
187377399421,39cyclictest0-21swapper/022:50:200
1873777994134,4cyclictest0-21swapper/223:00:172
1873777994129,8cyclictest0-21swapper/222:00:182
1873773994132,7cyclictest1914780-21munin-plugin-st23:30:000
1873773994131,7cyclictest0-21swapper/022:30:290
1873773994129,8cyclictest0-21swapper/021:35:280
1873773994128,9cyclictest0-21swapper/022:59:590
1873777994030,7cyclictest1924023-21phc2sys00:20:262
1873777994029,5cyclictest0-21swapper/200:40:022
1873776994028,8cyclictest0-21swapper/119:10:281
1873773994033,3cyclictest1917300-21sendmail_mailqu23:40:270
1873773994032,5cyclictest20850irq/208-8000000.ethernet00:10:000
187377399401,4cyclictest1911902-21memory23:10:240
187377399401,4cyclictest1889524-21/usr/sbin/munin20:40:150
187377399401,4cyclictest1889524-21/usr/sbin/munin20:40:150
187377399401,36cyclictest1913724-21ptp4l-jitter23:20:270
1873777993930,5cyclictest0-21swapper/200:05:302
1873777993929,5cyclictest0-21swapper/219:15:022
1873777993928,7cyclictest0-21swapper/222:50:272
1873777993928,7cyclictest0-21swapper/222:50:272
1873777993925,5cyclictest0-21swapper/222:30:202
1873776993930,6cyclictest0-21swapper/122:25:011
1873776993930,5cyclictest0-21swapper/100:40:001
1873776993926,10cyclictest0-21swapper/120:45:001
1873776993926,10cyclictest0-21swapper/120:45:001
1873773993933,4cyclictest167350irq/118-8000000.ethernet-tx023:00:120
1873773993932,4cyclictest0-21swapper/021:15:130
1873773993927,8cyclictest0-21swapper/020:55:280
1873773993927,8cyclictest0-21swapper/020:40:000
1873773993926,9cyclictest0-21swapper/019:30:280
1873773993925,9cyclictest0-21swapper/000:25:220
1873773993924,13cyclictest0-21swapper/022:25:010
1873773993924,10cyclictest0-21swapper/000:15:300
187377399392,3cyclictest1899747-21apt-get21:40:100
1873773993923,14cyclictest0-21swapper/000:10:180
1873773993923,10cyclictest0-21swapper/019:25:270
187377399391,4cyclictest0-21swapper/022:00:230
187377399391,3cyclictest1881323-21irqstats19:50:230
187377399391,2cyclictest0-21swapper/020:15:010
187377399391,20cyclictest0-21swapper/021:10:000
187377799387,28cyclictest30-21rcuc/222:35:272
187377799387,28cyclictest30-21rcuc/222:35:272
1873777993828,6cyclictest1888426-21grep20:30:292
1873777993828,5cyclictest0-21swapper/221:05:192
1873777993828,5cyclictest0-21swapper/200:00:282
1873777993827,5cyclictest0-21swapper/219:25:182
1873777993825,8cyclictest0-21swapper/221:25:192
1873776993828,5cyclictest0-21swapper/120:20:211
1873776993825,8cyclictest0-21swapper/120:50:001
1873773993831,4cyclictest0-21swapper/020:20:000
1873773993828,7cyclictest0-21swapper/021:10:280
1873773993825,10cyclictest0-21swapper/023:35:020
1873773993823,8cyclictest0-21swapper/023:05:280
187377399381,35cyclictest0-21swapper/020:05:180
187377399381,35cyclictest0-21swapper/000:30:300
1873777993729,5cyclictest0-21swapper/223:40:002
1873777993729,4cyclictest0-21swapper/222:55:272
1873777993728,5cyclictest0-21swapper/220:30:002
1873777993727,5cyclictest0-21swapper/223:15:292
1873777993725,8cyclictest0-21swapper/200:10:282
1873777993725,6cyclictest0-21swapper/221:15:292
1873777993714,13cyclictest311ktimers/223:50:012
1873776993729,4cyclictest1898140-21fschecks_count21:30:181
1873776993728,5cyclictest0-21swapper/122:00:251
1873776993728,4cyclictest0-21swapper/100:15:291
1873776993727,5cyclictest0-21swapper/100:00:181
1873776993725,6cyclictest0-21swapper/121:15:191
1873776993724,8cyclictest0-21swapper/120:30:271
187377399372,32cyclictest131ktimers/020:30:270
187377399371,34cyclictest0-21swapper/020:04:210
187377399371,34cyclictest0-21swapper/020:04:210
1873777993629,4cyclictest167550irq/134-8000000.ethernet-tx219:40:112
1873777993629,3cyclictest1902791-21sendmail22:20:002
1873777993627,5cyclictest1911359-21grep23:05:302
1873777993627,5cyclictest0-21swapper/222:00:012
1873777993624,9cyclictest0-21swapper/223:30:002
1873777993624,8cyclictest0-21swapper/223:50:292
1873777993619,10cyclictest0-21swapper/221:10:262
187377699369,25cyclictest1900238-21tr21:40:261
1873776993629,4cyclictest0-21swapper/121:50:031
1873776993628,4cyclictest0-21swapper/120:50:191
1873776993627,5cyclictest0-21swapper/120:55:281
1873776993626,7cyclictest1919972-21grep23:55:311
1873776993626,7cyclictest1919972-21grep23:55:311
1873776993626,6cyclictest22-21rcuc/123:20:181
1873776993626,6cyclictest1916495-21grep23:35:271
1873776993626,5cyclictest0-21swapper/122:55:221
1873776993621,10cyclictest1897206-21/usr/sbin/munin21:25:091
1873776993620,8cyclictest0-21swapper/100:25:301
1873776993618,12cyclictest231ktimers/123:05:141
1873773993628,5cyclictest1901223-21sed22:00:020
187377399361,3cyclictest0-21swapper/023:50:240
187377399361,33cyclictest0-21swapper/022:40:230
1873777993528,5cyclictest0-21swapper/220:10:252
1873777993526,4cyclictest0-21swapper/220:40:012
187377799351,2cyclictest0-21swapper/220:10:022
1873776993528,4cyclictest0-21swapper/119:55:251
1873776993526,6cyclictest1899483-21grep21:35:291
1873776993524,7cyclictest0-21swapper/123:25:181
1873773993527,5cyclictest0-21swapper/021:25:190
1873777993425,5cyclictest1879111-21grep19:35:292
1873777993424,6cyclictest1890077-21grep20:40:272
1873777993424,6cyclictest1890077-21grep20:40:272
1873777993423,8cyclictest0-21swapper/200:30:282
1873776993427,4cyclictest1906126-21unixbench_multi22:35:291
1873776993427,4cyclictest1906126-21unixbench_multi22:35:291
1873777993324,6cyclictest1925174-21grep00:25:302
1873777993322,6cyclictest0-21swapper/221:35:192
1873776993326,5cyclictest0-21swapper/120:10:271
1873776993325,5cyclictest0-21swapper/123:45:281
187377699332,4cyclictest1877988-21meminfo19:30:231
1873776993323,7cyclictest1919100-21grep23:50:281
1873776993323,5cyclictest0-21swapper/121:20:191
187377699331,4cyclictest1907098-21apt-get22:45:011
187377399331,30cyclictest0-21swapper/022:14:160
1873777993225,4cyclictest167550irq/134-8000000.ethernet-tx220:55:152
187377799321,29cyclictest0-21swapper/220:50:272
1873776993224,5cyclictest1910507-21grep23:00:291
1873776993224,4cyclictest1893531-21cron21:05:061
1873776993223,5cyclictest0-21swapper/120:00:251
1873776993223,5cyclictest0-21swapper/120:00:251
187377699321,4cyclictest1883906-21meminfo20:05:261
187377399321,29cyclictest0-21swapper/021:49:160
1873777993123,3cyclictest0-21swapper/220:15:212
1873777993122,7cyclictest0-21swapper/219:30:282
1873777993120,7cyclictest0-21swapper/223:20:272
1873777993119,9cyclictest0-21swapper/200:20:012
187377799311,4cyclictest1893157-21irqstats21:00:222
1873777993111,17cyclictest167550irq/134-8000000.ethernet-tx221:20:172
1873776993123,5cyclictest0-21swapper/121:10:271
1873776993119,7cyclictest0-21swapper/122:40:281
1873776993115,11cyclictest231ktimers/121:00:141
1873776993114,4cyclictest167450irq/126-8000000.ethernet-tx100:33:191
187377699311,24cyclictest0-21swapper/120:35:161
187377699311,24cyclictest0-21swapper/119:40:111
1873773993126,2cyclictest0-21swapper/021:50:040
1873777993022,4cyclictest0-21swapper/222:20:322
1873777993021,5cyclictest0-21swapper/219:20:212
1873777993021,5cyclictest0-21swapper/219:20:212
1873776993021,5cyclictest0-21swapper/119:35:261
1873776993020,7cyclictest0-21swapper/123:15:301
1873776993020,5cyclictest0-21swapper/123:35:011
1873776993018,8cyclictest0-21swapper/122:25:291
1873777992922,4cyclictest0-21swapper/222:14:592
1873777992917,8cyclictest1900283-21grep21:40:272
1873777992917,7cyclictest1900603-21cron21:50:022
1873776992921,6cyclictest0-21swapper/119:25:011
1873776992921,6cyclictest0-21swapper/119:25:011
1873776992921,4cyclictest0-21swapper/122:20:011
1873776992920,6cyclictest0-21swapper/122:00:021
1873776992817,8cyclictest0-21swapper/123:15:001
1873776992816,5cyclictest22-21rcuc/122:10:011
1873777992721,4cyclictest0-21swapper/221:49:592
1873777992720,3cyclictest0-21swapper/219:45:182
1873777992717,7cyclictest0-21swapper/223:55:322
1873777992717,7cyclictest0-21swapper/223:55:312
1873777992717,4cyclictest0-21swapper/222:45:292
1873776992721,4cyclictest1884224-21kworker/u8:1-events_power_efficient20:15:281
1873776992620,4cyclictest0-21swapper/122:15:001
1873776992619,4cyclictest0-21swapper/121:55:011
1873777992518,3cyclictest0-21swapper/223:40:272
1873777992517,4cyclictest0-21swapper/223:10:202
187377799241,18cyclictest1873901-21latency_hist19:10:012
187377699192,10cyclictest1873862-21cat19:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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