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2026-06-04 - 20:55

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 Thu Jun 04, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34850899641,23cyclictest0-21swapper/012:30:000
34851099609,19cyclictest349794-21/usr/sbin/munin07:15:191
34851399585,27cyclictest0-21swapper/208:15:012
348508995451,2cyclictest0-21swapper/010:05:110
34851099521,9cyclictest0-21swapper/109:40:021
348510995143,5cyclictest391499-21munin-plugin-st11:20:001
348508995139,8cyclictest0-21swapper/009:05:250
348508995133,15cyclictest167350irq/118-8000000.ethernet-tx007:10:180
34850899511,4cyclictest378577-21unixbench_multi10:00:280
348513995038,8cyclictest0-21swapper/208:35:292
34851099504,16cyclictest0-21swapper/111:30:011
348510995037,9cyclictest388123-21sendmail11:00:011
348510995033,11cyclictest0-21swapper/111:30:271
348510995030,13cyclictest231ktimers/108:55:121
348508995041,4cyclictest167350irq/118-8000000.ethernet-tx012:00:010
348513994938,8cyclictest390646-21sh11:15:002
348508994942,4cyclictest167350irq/118-8000000.ethernet-tx011:35:260
348508994941,5cyclictest355590-21unixbench_multi07:45:290
348508994935,9cyclictest0-21swapper/009:40:280
348508994931,15cyclictest167350irq/118-8000000.ethernet-tx007:40:180
34851399482,17cyclictest311ktimers/210:20:012
348510994839,5cyclictest392353-21http11:25:011
348510994831,12cyclictest231ktimers/112:20:131
348510994831,12cyclictest231ktimers/112:20:121
34850899481,37cyclictest15-21rcuc/011:15:180
348508994811,33cyclictest0-21swapper/008:40:180
348508994811,33cyclictest0-21swapper/008:40:180
348510994727,15cyclictest231ktimers/107:40:151
348510994727,14cyclictest231ktimers/109:30:141
348508994736,6cyclictest382964-21unixbench_multi10:25:280
348508994735,9cyclictest353067-21munin-plugin-st07:35:000
348510994632,7cyclictest0-21swapper/107:25:001
348510994627,14cyclictest231ktimers/109:40:141
348510994623,15cyclictest231ktimers/111:05:141
348508994630,8cyclictest0-21swapper/007:30:010
348513994535,6cyclictest375132-21grep09:40:292
348513994528,9cyclictest0-21swapper/207:50:002
348513994527,6cyclictest0-21swapper/210:50:202
348513994527,10cyclictest0-21swapper/210:40:002
348510994534,7cyclictest352036-21grep07:25:281
348510994526,13cyclictest231ktimers/110:20:121
348510994522,13cyclictest0-21swapper/109:25:291
34850899457,4cyclictest0-21swapper/007:20:010
34850899454,11cyclictest14-21rcu_preempt09:50:020
34850899452,5cyclictest363787-21meminfo08:35:240
34850899451,4cyclictest0-21swapper/012:30:170
34850899451,4cyclictest0-21swapper/012:30:170
348513994434,5cyclictest0-21swapper/211:00:262
348513994431,9cyclictest0-21swapper/211:35:292
348513994425,11cyclictest0-21swapper/209:35:262
348510994434,6cyclictest0-21swapper/111:45:011
348510994434,6cyclictest0-21swapper/111:45:001
348510994430,8cyclictest0-21swapper/109:55:291
348510994428,9cyclictest0-21swapper/112:35:011
348510994428,9cyclictest0-21swapper/112:35:011
348508994436,5cyclictest0-21swapper/012:40:010
348508994435,6cyclictest20850irq/208-8000000.ethernet09:10:280
348508994431,8cyclictest0-21swapper/010:40:010
348508994428,14cyclictest167350irq/118-8000000.ethernet-tx007:35:150
348508994425,13cyclictest0-21swapper/008:00:010
34850899441,5cyclictest360298-21fschecks_time08:15:210
34850899441,41cyclictest0-21swapper/010:00:010
348510994333,5cyclictest397404-21tail11:50:291
348510994330,7cyclictest231ktimers/107:45:111
348510994325,14cyclictest231ktimers/109:45:121
348508994336,4cyclictest0-21swapper/008:25:000
34850899432,3cyclictest390742-21latency_hist11:15:020
34850899431,38cyclictest376694-21awk09:50:270
348513994233,5cyclictest0-21swapper/212:20:282
348513994233,5cyclictest0-21swapper/212:20:282
348513994231,6cyclictest395708-21grep11:40:302
348513994231,6cyclictest395708-21grep11:40:292
348513994229,6cyclictest0-21swapper/212:15:212
348513994228,10cyclictest0-21swapper/212:35:292
348513994227,8cyclictest0-21swapper/207:50:262
34851099423,9cyclictest0-21swapper/110:50:001
348510994231,7cyclictest0-21swapper/108:50:281
348510994228,9cyclictest0-21swapper/109:50:271
348510994228,8cyclictest0-21swapper/107:10:281
348508994232,7cyclictest373504-21munin-plugin-st09:35:000
348508994229,9cyclictest0-21swapper/011:50:290
34850899422,5cyclictest386099-21memory10:45:250
348508994224,16cyclictest0-21swapper/008:30:210
34850899421,38cyclictest366321-21if_err_eth008:50:210
348513994133,5cyclictest398283-21grep11:55:282
348513994133,3cyclictest0-21swapper/209:55:282
348513994129,7cyclictest0-21swapper/209:30:252
348513994128,9cyclictest0-21swapper/210:55:272
34851399412,29cyclictest381251-21kworker/u8:3+rpciod11:24:232
348513994111,24cyclictest0-21swapper/207:55:232
348510994132,5cyclictest0-21swapper/112:10:221
348510994130,7cyclictest0-21swapper/107:30:311
348508994134,4cyclictest167350irq/118-8000000.ethernet-tx011:20:280
34850899411,4cyclictest365241-21df08:45:160
34850899411,35cyclictest0-21swapper/009:30:010
348513994031,6cyclictest389724-21unixbench_multi11:05:282
348513994031,5cyclictest0-21swapper/208:49:592
348513994030,7cyclictest379501-21munin-plugin-st10:10:012
348513994025,10cyclictest0-21swapper/212:10:312
348510994032,5cyclictest382946-21unixbench_multi10:25:281
348510994027,8cyclictest0-21swapper/112:15:281
348510994019,14cyclictest231ktimers/107:55:141
34851099401,4cyclictest0-21swapper/111:05:011
348508994030,5cyclictest0-21swapper/011:49:590
34850899401,4cyclictest392696-21df11:25:150
34850899401,4cyclictest0-21swapper/011:45:010
34850899401,4cyclictest0-21swapper/011:45:010
34850899401,37cyclictest0-21swapper/011:05:280
348513993929,6cyclictest0-21swapper/209:05:272
348513993928,7cyclictest399930-21grep12:05:282
348513993928,6cyclictest399142-21grep12:00:282
348513993928,6cyclictest376773-21grep09:50:272
348513993928,6cyclictest354974-21cat07:45:012
348513993927,7cyclictest378628-21grep10:00:292
348513993920,15cyclictest0-21swapper/207:35:002
34851399391,31cyclictest1660-21snmpd08:15:282
348510993928,8cyclictest0-21swapper/110:05:281
348510993927,8cyclictest0-21swapper/111:45:291
348510993927,8cyclictest0-21swapper/108:05:281
348510993923,11cyclictest231ktimers/109:15:121
348508993927,8cyclictest0-21swapper/012:15:000
34850899391,36cyclictest0-21swapper/011:00:170
34850899391,36cyclictest0-21swapper/010:50:170
34850899391,36cyclictest0-21swapper/007:20:220
34850899391,35cyclictest401319-21interrupts12:15:220
34850899391,2cyclictest0-21swapper/010:30:190
348513993826,7cyclictest0-21swapper/208:25:192
348513993825,9cyclictest0-21swapper/207:25:282
348513993824,8cyclictest311ktimers/211:30:272
348513993822,8cyclictest0-21swapper/210:30:272
348510993826,9cyclictest0-21swapper/108:40:261
348510993826,9cyclictest0-21swapper/108:40:261
348510993824,8cyclictest0-21swapper/112:35:301
348510993822,8cyclictest0-21swapper/110:40:001
34851099382,13cyclictest231ktimers/110:45:011
34851099382,13cyclictest231ktimers/110:45:011
34851099381,9cyclictest0-21swapper/112:00:011
348510993816,15cyclictest231ktimers/112:05:141
348508993834,2cyclictest0-21swapper/007:55:010
348508993833,2cyclictest0-21swapper/010:40:190
348508993833,2cyclictest0-21swapper/010:40:190
348508993832,4cyclictest0-21swapper/009:20:220
348508993832,4cyclictest0-21swapper/009:20:220
348508993832,4cyclictest0-21swapper/008:55:210
348508993831,4cyclictest167350irq/118-8000000.ethernet-tx008:00:200
348508993831,4cyclictest167350irq/118-8000000.ethernet-tx008:00:200
348508993831,4cyclictest0-21swapper/010:55:260
348508993829,5cyclictest0-21swapper/009:00:200
34850899381,35cyclictest0-21swapper/010:10:120
34850899381,2cyclictest0-21swapper/012:05:010
348508993810,21cyclictest0-21swapper/010:25:000
348513993729,5cyclictest30-21rcuc/209:25:152
348513993728,6cyclictest311ktimers/208:55:102
348513993727,6cyclictest397458-21grep11:50:282
348513993726,6cyclictest311ktimers/208:40:172
348513993726,6cyclictest311ktimers/208:40:162
348513993726,6cyclictest0-21swapper/208:00:222
348513993726,6cyclictest0-21swapper/208:00:222
348513993726,5cyclictest0-21swapper/209:00:242
348513993725,8cyclictest311ktimers/209:15:102
348513993715,16cyclictest2-21kthreadd07:23:202
348510993727,7cyclictest365180-21/usr/sbin/munin08:45:161
348510993718,14cyclictest231ktimers/108:20:121
34851099371,4cyclictest0-21swapper/107:10:011
348508993730,5cyclictest0-21swapper/008:13:100
348508993720,15cyclictest0-21swapper/009:35:180
34851399364,23cyclictest393242-21sed11:25:282
348513993629,4cyclictest0-21swapper/210:25:062
348513993627,6cyclictest311ktimers/208:20:112
348513993626,5cyclictest0-21swapper/210:20:192
348513993625,5cyclictest0-21swapper/211:15:182
348513993624,5cyclictest0-21swapper/209:20:192
348513993624,5cyclictest0-21swapper/209:20:192
348510993625,8cyclictest0-21swapper/110:50:301
348510993622,7cyclictest0-21swapper/112:00:281
348510993621,10cyclictest0-21swapper/109:20:261
348510993621,10cyclictest0-21swapper/109:20:261
34851099361,3cyclictest0-21swapper/108:30:011
34851099361,2cyclictest0-21swapper/107:40:011
348508993631,2cyclictest0-21swapper/012:20:170
348508993631,2cyclictest0-21swapper/012:20:170
348508993629,4cyclictest0-21swapper/008:05:110
348508993617,17cyclictest0-21swapper/008:25:270
34850899361,30cyclictest0-21swapper/009:20:010
348513993527,5cyclictest311ktimers/208:05:172
348513993524,5cyclictest0-21swapper/211:49:592
348513993523,6cyclictest0-21swapper/207:20:012
348510993523,7cyclictest0-21swapper/107:50:271
348510993517,14cyclictest231ktimers/111:10:111
34851099351,2cyclictest0-21swapper/110:20:021
34850899351,32cyclictest0-21swapper/012:05:110
34850899351,32cyclictest0-21swapper/011:30:300
34851399348,15cyclictest0-21swapper/210:40:122
34851399348,15cyclictest0-21swapper/210:40:112
348513993427,5cyclictest311ktimers/208:30:162
348513993424,6cyclictest311ktimers/207:35:092
34851399342,27cyclictest32-21ksoftirqd/207:10:152
348513993421,8cyclictest311ktimers/207:10:022
348513993415,10cyclictest0-21swapper/209:50:012
348510993425,7cyclictest0-21swapper/108:30:221
348510993425,5cyclictest394959-21sendmail11:40:001
348513993320,5cyclictest0-21swapper/212:25:122
348510993325,5cyclictest0-21swapper/110:10:161
348510993322,8cyclictest0-21swapper/110:30:281
34850899332,5cyclictest380888-21irqstats10:15:220
34851399324,18cyclictest404178-21head12:30:262
34851399324,18cyclictest404178-21head12:30:262
34851399321,26cyclictest0-21swapper/210:48:292
348510993221,8cyclictest0-21swapper/108:00:311
348510993221,8cyclictest0-21swapper/108:00:301
34851099321,4cyclictest0-21swapper/109:15:011
348510993213,4cyclictest8321systemd-network08:13:271
348513993122,6cyclictest30-21rcuc/209:15:022
34851099317,8cyclictest402768-21/usr/sbin/munin12:25:181
348510993119,7cyclictest0-21swapper/108:35:171
348510993021,5cyclictest0-21swapper/109:05:271
34851399298,13cyclictest380317-21tail10:10:302
34851399294,19cyclictest366717-21unixbench_singl08:50:272
348510992820,5cyclictest1660-21snmpd10:00:271
348510992722,3cyclictest0-21swapper/108:18:281
348510992719,5cyclictest367807-21/usr/sbin/munin09:00:091
348508992516,6cyclictest0-21swapper/007:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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