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2026-09-05 - 06:31

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 the 792 highest latencies:
System rackeslot6s.osadl.org (updated Sat Sep 05, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
225445099661,3cyclictest0-21swapper/022:05:120
225445099651,29cyclictest15-21rcuc/022:45:020
2254450996452,6cyclictest2269979-21kworker/u8:3+events_power_efficient20:45:110
225445099621,59cyclictest0-21swapper/020:10:190
225445699614,29cyclictest0-21swapper/219:15:012
2254450996049,6cyclictest0-21swapper/020:05:260
225445099601,4cyclictest0-21swapper/000:00:180
225445699571,11cyclictest0-21swapper/221:10:192
225445299569,9cyclictest2299726-21apt-get23:35:021
2254452995540,11cyclictest1283-21cron22:55:001
2254450995429,22cyclictest19750irq/27-20000000.i2c21:20:230
225445099532,4cyclictest2281033-21grep21:40:270
2254452995242,6cyclictest2275071-21munin-plugin-st21:10:001
225445099511,9cyclictest0-21swapper/019:25:010
225445099509,28cyclictest131ktimers/019:45:180
2254450995037,9cyclictest2273379-21sendmail21:00:000
2254450995037,9cyclictest2273379-21sendmail21:00:000
2254450995035,11cyclictest0-21swapper/021:55:280
2254450994938,7cyclictest131ktimers/021:50:100
2254452994840,5cyclictest2309204-21munin-plugin-st00:30:001
2254450994734,10cyclictest1283-21cron21:35:000
2254450994727,15cyclictest131ktimers/023:50:120
2254456994639,4cyclictest2302446-21munin-plugin-st23:50:002
2254450994640,3cyclictest167350irq/118-8000000.ethernet-tx019:30:180
2254450994639,4cyclictest167350irq/118-8000000.ethernet-tx020:15:150
2254450994637,7cyclictest2297111-21munin-plugin-st23:20:000
2254456994536,4cyclictest311ktimers/221:35:012
2254452994517,16cyclictest2301804-21/usr/sbin/munin23:45:181
225445099458,33cyclictest0-21swapper/020:35:000
2254450994538,5cyclictest0-21swapper/023:10:150
2254450994529,11cyclictest0-21swapper/022:55:010
2254456994435,5cyclictest0-21swapper/222:20:302
225445099441,7cyclictest2275118-21latency_hist21:10:010
2254456994330,9cyclictest0-21swapper/223:40:012
2254456994328,10cyclictest0-21swapper/220:15:162
2254450994337,4cyclictest2260624-21munin-plugin-st19:45:010
2254450994332,9cyclictest0-21swapper/023:40:010
225445099432,4cyclictest0-21swapper/020:25:010
225445099431,5cyclictest2263135-21cron20:00:010
225445099431,40cyclictest2262482-21latency_hist19:55:010
2254456994232,6cyclictest0-21swapper/223:25:002
2254456994232,5cyclictest2305765-21unixbench_singl00:05:282
2254456994231,6cyclictest2259698-21grep19:35:282
2254456994229,8cyclictest0-21swapper/222:30:312
2254456994226,10cyclictest0-21swapper/219:25:282
2254456994226,10cyclictest0-21swapper/219:25:282
2254452994232,6cyclictest0-21swapper/119:35:281
2254452994229,9cyclictest0-21swapper/100:10:001
2254452994226,10cyclictest231ktimers/119:45:131
225445099429,3cyclictest2276783-21apt-key21:20:000
2254450994234,6cyclictest131ktimers/023:30:260
2254450994234,4cyclictest167350irq/118-8000000.ethernet-tx022:10:170
2254456994132,6cyclictest2295362-21grep23:05:272
2254456994132,6cyclictest2295362-21grep23:05:272
2254456994129,8cyclictest2298892-21munin-plugin-st23:30:012
2254456994129,8cyclictest2298892-21munin-plugin-st23:30:002
2254456994129,8cyclictest0-21swapper/222:10:002
2254452994132,7cyclictest2291090-21grep22:40:271
2254452994132,5cyclictest0-21swapper/122:40:001
2254452994132,4cyclictest0-21swapper/120:45:281
225445299412,8cyclictest2276946-21grep21:20:011
2254452994128,8cyclictest0-21swapper/120:25:311
2254452994128,5cyclictest0-21swapper/100:20:231
2254450994134,4cyclictest2269998-21munin-plugin-st20:40:000
2254450994134,4cyclictest0-21swapper/023:55:150
225445099412,6cyclictest2297899-21grep23:20:280
225445099412,5cyclictest2277966-21df_inode21:25:180
2254450994122,16cyclictest0-21swapper/022:41:320
225445099411,38cyclictest0-21swapper/023:40:050
225445699409,25cyclictest0-21swapper/219:30:182
2254456994033,4cyclictest0-21swapper/223:45:002
2254456994032,5cyclictest0-21swapper/200:35:002
2254456994032,4cyclictest0-21swapper/220:25:302
225445299407,4cyclictest2255399-21diskstats19:15:011
2254452994032,4cyclictest0-21swapper/119:20:291
2254452994031,5cyclictest0-21swapper/121:00:271
2254452994029,6cyclictest0-21swapper/100:35:271
2254452994022,13cyclictest231ktimers/119:15:141
225445099404,33cyclictest0-21swapper/000:25:280
2254450994035,2cyclictest0-21swapper/022:15:270
2254450994033,4cyclictest0-21swapper/023:00:160
2254450994025,10cyclictest0-21swapper/020:00:190
225445099401,37cyclictest0-21swapper/023:05:140
225445099401,37cyclictest0-21swapper/023:05:140
225445099401,36cyclictest2305604-21ptp4l-jitter00:05:260
2254456993933,3cyclictest2307408-21unixbench_multi00:15:292
2254456993931,4cyclictest167550irq/134-8000000.ethernet-tx220:30:222
2254456993929,5cyclictest2291989-21grep22:45:282
2254456993926,7cyclictest2297031-21grep23:15:272
225445299396,8cyclictest22-21rcuc/122:20:001
2254450993933,3cyclictest167350irq/118-8000000.ethernet-tx023:48:330
225445099391,36cyclictest0-21swapper/022:55:200
225445699383,25cyclictest30-21rcuc/221:00:142
2254456993830,5cyclictest2260623-21munin-plugin-st19:45:012
2254456993830,4cyclictest167550irq/134-8000000.ethernet-tx220:05:232
2254456993827,6cyclictest2304077-21grep23:55:282
2254456993824,7cyclictest0-21swapper/221:45:272
225445699382,28cyclictest2269647-21meminfo20:35:232
225445299384,28cyclictest22-21rcuc/123:25:021
2254452993828,5cyclictest0-21swapper/120:20:281
2254452993827,7cyclictest2263038-21grep19:55:281
2254452993825,9cyclictest0-21swapper/120:30:191
2254452993821,10cyclictest0-21swapper/119:50:271
225445299381,31cyclictest0-21swapper/122:00:191
225445299381,2cyclictest0-21swapper/122:30:011
225445299381,2cyclictest0-21swapper/122:30:011
2254450993832,4cyclictest2284455-21munin-plugin-st22:05:000
2254450993832,2cyclictest0-21swapper/023:30:010
2254450993831,4cyclictest20850irq/208-8000000.ethernet00:15:270
2254450993822,14cyclictest0-21swapper/000:11:130
2254450993822,14cyclictest0-21swapper/000:11:130
225445099381,35cyclictest0-21swapper/022:30:010
225445099381,35cyclictest0-21swapper/022:30:010
225445099381,35cyclictest0-21swapper/019:25:150
225445099381,35cyclictest0-21swapper/019:25:150
225445099381,35cyclictest0-21swapper/000:35:120
225445699376,3cyclictest2261399-21unixbench_singl19:45:352
225445699372,5cyclictest30-21rcuc/222:55:272
2254456993725,7cyclictest2263104-21grep19:55:282
2254456993723,7cyclictest0-21swapper/200:20:302
2254452993718,16cyclictest231ktimers/121:30:111
225445299371,29cyclictest22-21rcuc/123:10:111
2254452993710,16cyclictest0-21swapper/122:35:011
2254450993733,2cyclictest0-21swapper/000:35:010
2254450993732,3cyclictest0-21swapper/020:30:000
2254450993731,3cyclictest0-21swapper/020:40:120
225445099371,4cyclictest0-21swapper/019:15:160
225445099371,34cyclictest0-21swapper/021:10:240
225445099371,34cyclictest0-21swapper/000:20:210
2254456993627,6cyclictest0-21swapper/219:15:312
2254456993623,9cyclictest0-21swapper/223:35:012
2254456993623,5cyclictest167550irq/134-8000000.ethernet-tx200:25:232
2254456993622,11cyclictest0-21swapper/222:19:592
2254456993622,10cyclictest0-21swapper/220:45:012
225445699361,33cyclictest0-21swapper/221:15:262
2254452993628,4cyclictest0-21swapper/121:35:201
2254452993627,5cyclictest0-21swapper/123:30:271
2254452993624,8cyclictest0-21swapper/120:40:281
2254452993622,12cyclictest231ktimers/122:10:121
2254452993622,10cyclictest0-21swapper/120:15:271
225445299361,5cyclictest2293732-21munin-run23:00:011
2254450993628,5cyclictest19750irq/27-20000000.i2c23:25:210
2254450993626,6cyclictest0-21swapper/021:00:270
2254450993620,14cyclictest0-21swapper/022:35:110
2254456993520,9cyclictest2296245-21sshd23:12:082
2254452993522,9cyclictest0-21swapper/121:25:271
2254452993520,10cyclictest231ktimers/123:25:131
2254452993520,10cyclictest231ktimers/123:25:131
2254450993530,2cyclictest0-21swapper/022:25:010
2254450993520,13cyclictest0-21swapper/021:39:220
225445099351,32cyclictest0-21swapper/021:45:590
225445099351,32cyclictest0-21swapper/019:35:250
225445099351,32cyclictest0-21swapper/019:12:140
225445699341,27cyclictest0-21swapper/221:05:182
2254452993426,5cyclictest0-21swapper/120:50:281
2254452993425,6cyclictest2269888-21grep20:35:281
2254452993424,7cyclictest0-21swapper/121:20:281
225445299342,2cyclictest0-21swapper/120:55:281
225445299342,2cyclictest0-21swapper/120:55:281
2254452993421,10cyclictest231ktimers/120:05:111
225445299341,28cyclictest0-21swapper/123:00:251
225445299341,27cyclictest22-21rcuc/120:10:291
225445699333,2cyclictest0-21swapper/220:20:182
2254456993324,4cyclictest0-21swapper/220:50:272
2254456993323,7cyclictest0-21swapper/221:40:012
2254456993322,5cyclictest0-21swapper/222:40:192
2254456993319,8cyclictest0-21swapper/219:50:282
2254456993314,13cyclictest311ktimers/222:50:122
225445699331,27cyclictest0-21swapper/221:20:222
2254452993323,7cyclictest2303226-21grep23:50:271
2254452993323,6cyclictest2281811-21grep21:45:271
2254452993323,6cyclictest0-21swapper/121:10:281
2254452993322,8cyclictest0-21swapper/121:40:261
225445299331,29cyclictest2257901-21mailstats19:25:271
225445299331,29cyclictest2257901-21mailstats19:25:271
225445099331,29cyclictest0-21swapper/022:30:260
2254456993222,6cyclictest2282690-21grep21:50:272
2254456993221,6cyclictest0-21swapper/222:35:262
2254456993220,8cyclictest0-21swapper/221:00:012
2254456993220,8cyclictest0-21swapper/221:00:012
2254452993223,5cyclictest0-21swapper/119:40:201
2254452993222,6cyclictest2307445-21grep00:15:301
2254452993221,8cyclictest0-21swapper/123:15:011
2254452993221,6cyclictest0-21swapper/122:25:011
2254452993216,10cyclictest0-21swapper/100:00:011
2254450993221,8cyclictest131ktimers/020:50:240
2254456993120,8cyclictest0-21swapper/222:10:272
2254456993120,6cyclictest0-21swapper/221:55:292
225445699311,15cyclictest2304337-21/usr/sbin/munin00:00:182
2254452993122,5cyclictest0-21swapper/122:05:201
2254452993119,8cyclictest0-21swapper/123:05:281
2254452993119,8cyclictest0-21swapper/123:05:281
225445299311,28cyclictest2301598-21sshd23:44:321
225445299311,26cyclictest0-21swapper/122:45:261
2254456993022,5cyclictest2256974-21ps19:20:272
2254456993022,4cyclictest0-21swapper/221:40:192
2254456993022,4cyclictest0-21swapper/220:45:282
2254456993021,6cyclictest0-21swapper/222:00:282
225445299302,3cyclictest2283186-21if_eth021:55:221
2254456992921,6cyclictest2277965-21df21:25:182
2254456992921,5cyclictest0-21swapper/223:00:282
2254456992910,16cyclictest167550irq/134-8000000.ethernet-tx223:51:172
225445299291,26cyclictest0-21swapper/120:00:221
2254456992821,5cyclictest0-21swapper/222:25:102
2254456992821,5cyclictest0-21swapper/222:25:102
2254452992817,8cyclictest0-21swapper/100:10:291
2254452992817,8cyclictest0-21swapper/100:10:291
2254456992722,4cyclictest14-21rcu_preempt00:10:222
2254456992722,4cyclictest14-21rcu_preempt00:10:212
2254456992719,4cyclictest0-21swapper/200:35:272
2254452992720,3cyclictest2304881-21sed00:00:271
2254452992719,5cyclictest1660-21snmpd00:30:061
225445699268,12cyclictest311ktimers/220:00:122
2254452992617,7cyclictest1653-21lldpd19:34:471
2254456992518,4cyclictest0-21swapper/220:10:212
2254452992519,4cyclictest0-21swapper/121:51:161
225445099244,14cyclictest0-21swapper/019:10:000
2254452992214,4cyclictest0-21swapper/119:09:591
2254456991914,3cyclictest2254422-21latency_hist19:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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