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2026-07-06 - 02:33

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 Jul 05, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2584064997211,19cyclictest2602327-21/usr/sbin/munin08:55:181
258406499651,5cyclictest0-21swapper/109:40:011
258406499605,29cyclictest0-21swapper/112:00:011
2584064996050,6cyclictest2616570-21sendmail10:20:001
2584061996054,4cyclictest0-21swapper/008:25:100
2584064995542,9cyclictest0-21swapper/111:34:591
258406199543,29cyclictest15-21rcuc/010:45:020
2584064995338,12cyclictest231ktimers/107:30:121
258406199521,27cyclictest0-21swapper/009:45:000
2584064995133,12cyclictest231ktimers/111:10:121
2584064995133,12cyclictest231ktimers/111:10:121
2584064995042,5cyclictest2596218-21cat08:20:001
2584064995042,5cyclictest2596218-21cat08:20:001
2584061995032,15cyclictest167350irq/118-8000000.ethernet-tx011:45:230
2584061994920,6cyclictest2618208-21grep10:25:320
2584064994828,15cyclictest231ktimers/109:40:131
2584061994835,10cyclictest2599594-21sendmail08:39:590
2584064994735,6cyclictest2637717-21grep12:20:271
258406199472,4cyclictest0-21swapper/009:15:110
2584064994638,4cyclictest0-21swapper/110:25:211
2584064994633,9cyclictest0-21swapper/107:44:591
2584061994639,4cyclictest167350irq/118-8000000.ethernet-tx012:25:280
2584061994634,8cyclictest0-21swapper/010:20:280
2584061994631,11cyclictest0-21swapper/012:00:000
258406599456,10cyclictest0-21swapper/212:15:002
2584065994532,8cyclictest0-21swapper/212:20:282
2584065994518,9cyclictest2609717-21apt-get09:40:012
2584064994529,10cyclictest231ktimers/107:45:121
2584064994528,13cyclictest0-21swapper/110:20:281
2584064994527,12cyclictest231ktimers/109:45:111
2584064994524,15cyclictest231ktimers/111:00:131
258406199455,6cyclictest2639089-21dropbear12:30:210
2584061994537,4cyclictest167350irq/118-8000000.ethernet-tx008:30:280
2584061994535,6cyclictest2626959-21latency_hist11:20:010
2584065994435,6cyclictest2613183-21sendmail10:00:002
2584065994431,7cyclictest2587597-21grep07:25:282
2584064994427,11cyclictest231ktimers/111:50:141
2584064994427,11cyclictest231ktimers/111:50:141
2584064994425,16cyclictest231ktimers/110:00:141
2584064994425,16cyclictest231ktimers/110:00:141
2584061994437,4cyclictest167350irq/118-8000000.ethernet-tx009:20:170
258406199443,5cyclictest2623375-21users10:55:300
2584061994435,4cyclictest20650irq/252-8000000.ethernet10:15:190
2584065994337,3cyclictest14-21rcu_preempt10:35:282
2584065994333,6cyclictest0-21swapper/210:25:002
2584065994332,6cyclictest0-21swapper/210:10:282
2584065994326,11cyclictest311ktimers/209:45:142
2584064994325,13cyclictest231ktimers/107:35:131
2584064994325,13cyclictest231ktimers/107:35:131
2584064994322,15cyclictest231ktimers/112:35:141
258406499431,17cyclictest0-21swapper/110:45:011
2584061994336,4cyclictest20650irq/252-8000000.ethernet09:55:270
2584061994336,4cyclictest0-21swapper/011:55:000
2584061994336,4cyclictest0-21swapper/011:55:000
258406199431,37cyclictest0-21swapper/011:35:010
2584065994232,6cyclictest2635174-21grep12:05:282
2584065994231,7cyclictest0-21swapper/209:20:262
2584065994229,6cyclictest0-21swapper/211:55:292
2584064994229,9cyclictest0-21swapper/107:15:021
2584064994225,10cyclictest0-21swapper/107:55:201
2584064994224,14cyclictest231ktimers/110:55:141
2584061994229,8cyclictest131ktimers/011:25:120
258406199422,5cyclictest2601563-21diskstats08:50:190
2584061994223,17cyclictest0-21swapper/007:35:250
2584061994223,17cyclictest0-21swapper/007:35:250
258406199421,5cyclictest2587113-21df07:25:170
258406199421,35cyclictest2635224-21latency_hist12:10:020
2584065994117,16cyclictest0-21swapper/207:50:172
2584064994127,10cyclictest25972721/usr/sbin/munin08:25:181
2584064994123,13cyclictest231ktimers/109:05:121
2584061994136,2cyclictest0-21swapper/007:15:000
2584061994135,4cyclictest167350irq/118-8000000.ethernet-tx010:36:580
258406199413,4cyclictest2603737-21grep09:00:290
2584061994132,4cyclictest20650irq/252-8000000.ethernet09:05:300
258406199412,4cyclictest2591361-21/usr/sbin/munin07:50:090
258406199412,36cyclictest0-21swapper/008:05:150
2584065994032,5cyclictest311ktimers/211:55:022
2584065994032,5cyclictest311ktimers/211:55:012
2584065994029,7cyclictest2638572-21grep12:25:292
2584065994029,6cyclictest0-21swapper/208:15:282
2584065994029,6cyclictest0-21swapper/208:15:272
2584065994028,8cyclictest311ktimers/209:00:172
2584064994027,8cyclictest0-21swapper/109:00:291
2584064994021,13cyclictest231ktimers/110:35:151
2584061994027,8cyclictest0-21swapper/009:50:280
2584061994025,9cyclictest0-21swapper/012:15:010
258406199402,4cyclictest2593319-21irqstats08:00:240
2584061994024,14cyclictest0-21swapper/009:10:260
2584061994024,14cyclictest0-21swapper/009:10:260
258406199401,8cyclictest2602975-21sendmail09:00:000
2584061994016,22cyclictest2612327-21kworker/u8:2-events_power_efficient10:00:260
2584061994016,22cyclictest2612327-21kworker/u8:2-events_power_efficient10:00:250
258406199401,37cyclictest0-21swapper/011:05:130
2584065993933,4cyclictest14-21rcu_preempt09:40:192
2584065993931,4cyclictest0-21swapper/208:45:292
2584065993928,7cyclictest0-21swapper/207:40:302
2584065993927,5cyclictest0-21swapper/208:30:282
2584065993925,8cyclictest0-21swapper/212:30:292
2584065993924,9cyclictest0-21swapper/210:25:212
2584065993923,9cyclictest311ktimers/211:00:152
2584064993927,8cyclictest0-21swapper/110:05:281
2584064993923,9cyclictest0-21swapper/111:25:271
2584064993921,14cyclictest231ktimers/107:20:131
2584064993919,15cyclictest231ktimers/107:25:141
2584061993935,2cyclictest0-21swapper/008:20:280
2584061993932,5cyclictest0-21swapper/007:20:130
2584061993932,4cyclictest0-21swapper/010:50:260
2584061993925,10cyclictest2601291-21munin-plugin-st08:50:010
258406199392,3cyclictest2589684-21apt-get07:40:150
258406199391,4cyclictest2587946-21df07:30:170
258406199391,4cyclictest0-21swapper/008:20:010
258406199391,4cyclictest0-21swapper/008:20:010
258406199391,3cyclictest2637722-21awk12:20:270
258406199391,3cyclictest2608509-21kernelversion09:30:250
258406199391,36cyclictest0-21swapper/011:20:170
258406199391,36cyclictest0-21swapper/007:15:180
258406199391,35cyclictest0-21swapper/011:00:160
2584061993911,26cyclictest2634193-21sendmail_mailqu12:00:280
2584065993828,6cyclictest0-21swapper/209:30:292
2584065993827,7cyclictest0-21swapper/208:40:292
2584065993824,5cyclictest0-21swapper/210:00:192
2584065993824,5cyclictest0-21swapper/210:00:192
2584064993829,6cyclictest0-21swapper/109:55:291
2584064993826,8cyclictest0-21swapper/112:00:291
2584064993822,7cyclictest0-21swapper/108:20:181
2584061993831,4cyclictest0-21swapper/011:15:010
2584061993831,4cyclictest0-21swapper/011:15:010
2584061993829,5cyclictest2636841-21awk12:15:290
258406199381,5cyclictest0-21swapper/010:15:010
258406199381,3cyclictest2621145-21df10:45:180
2584065993729,5cyclictest14-21rcu_preempt12:35:262
2584065993729,4cyclictest0-21swapper/208:50:332
2584065993728,5cyclictest311ktimers/210:05:262
258406599371,4cyclictest0-21swapper/208:40:002
2584064993728,4cyclictest167450irq/126-8000000.ethernet-tx107:15:041
2584064993723,9cyclictest0-21swapper/112:10:301
2584064993720,11cyclictest231ktimers/108:10:111
258406499371,2cyclictest0-21swapper/108:50:011
258406499371,29cyclictest2598950-21/usr/sbin/munin08:35:281
2584061993731,4cyclictest0-21swapper/007:55:210
2584061993730,4cyclictest20650irq/252-8000000.ethernet09:45:160
2584061993728,4cyclictest20650irq/252-8000000.ethernet10:05:200
258406199371,4cyclictest0-21swapper/010:30:110
258406199371,4cyclictest0-21swapper/010:30:110
258406199371,2cyclictest0-21swapper/009:25:220
2584061993710,8cyclictest0-21swapper/007:45:180
2584065993630,4cyclictest14-21rcu_preempt11:45:262
2584065993629,4cyclictest14-21rcu_preempt07:10:272
2584065993626,7cyclictest311ktimers/211:15:112
2584065993626,6cyclictest2605402-21grep09:10:292
2584065993626,6cyclictest2605402-21grep09:10:282
2584065993624,9cyclictest311ktimers/209:50:162
2584065993624,8cyclictest0-21swapper/211:40:282
2584065993622,9cyclictest311ktimers/210:50:152
2584064993629,4cyclictest0-21swapper/112:25:181
2584064993626,5cyclictest0-21swapper/108:30:291
2584064993625,7cyclictest0-21swapper/112:05:251
2584064993623,9cyclictest0-21swapper/111:35:301
2584064993616,14cyclictest231ktimers/112:30:151
258406199363,4cyclictest2630782-21tail11:40:250
2584061993628,4cyclictest20850irq/208-8000000.ethernet09:40:000
2584065993529,3cyclictest2586745-21unixbench_multi07:20:292
2584065993528,4cyclictest14-21rcu_preempt07:15:272
2584065993525,7cyclictest0-21swapper/207:30:282
2584065993523,5cyclictest30-21rcuc/209:10:022
2584064993523,8cyclictest0-21swapper/108:00:281
2584064993523,7cyclictest0-21swapper/110:45:281
2584064993522,8cyclictest0-21swapper/109:20:261
2584061993528,4cyclictest20650irq/252-8000000.ethernet12:35:130
2584061993528,4cyclictest20650irq/252-8000000.ethernet08:10:160
258406199351,32cyclictest0-21swapper/008:40:270
258406599345,23cyclictest30-21rcuc/209:30:012
2584065993428,3cyclictest2593489-21ptp4l-jitter08:00:272
2584065993427,5cyclictest14-21rcu_preempt11:35:222
2584065993427,4cyclictest14-21rcu_preempt12:15:262
2584065993424,7cyclictest311ktimers/210:45:112
2584065993424,5cyclictest0-21swapper/208:25:262
2584065993423,8cyclictest0-21swapper/210:15:272
2584065993423,7cyclictest0-21swapper/211:25:272
2584065993421,7cyclictest311ktimers/207:55:112
2584065993420,9cyclictest0-21swapper/208:05:272
258406499347,21cyclictest832-21systemd-network09:17:431
2584064993423,7cyclictest231ktimers/109:50:141
2584065993327,4cyclictest0-21swapper/208:10:242
2584065993324,5cyclictest0-21swapper/209:15:272
2584065993323,7cyclictest0-21swapper/211:20:282
2584065993322,5cyclictest0-21swapper/210:40:262
2584064993322,7cyclictest0-21swapper/109:30:291
2584064993318,11cyclictest231ktimers/111:15:131
258406199333,5cyclictest2629517-21/usr/sbin/munin11:35:120
2584065993224,4cyclictest30-21rcuc/211:00:012
2584065993222,7cyclictest30-21rcuc/207:35:272
2584065993222,7cyclictest30-21rcuc/207:35:262
2584065993222,7cyclictest0-21swapper/208:20:282
2584065993222,6cyclictest30-21rcuc/211:30:282
2584065993220,8cyclictest311ktimers/211:10:122
2584065993220,8cyclictest311ktimers/211:10:112
2584065993217,8cyclictest0-21swapper/209:00:012
2584064993222,7cyclictest0-21swapper/107:50:251
2584064993221,6cyclictest2601487-21/usr/sbin/munin08:50:321
2584064993218,11cyclictest0-21swapper/111:50:001
2584064993217,11cyclictest231ktimers/110:30:121
2584064993217,11cyclictest231ktimers/110:30:121
258406499321,28cyclictest2621922-21/usr/sbin/munin10:50:161
2584064993212,14cyclictest231ktimers/111:05:121
2584065993121,6cyclictest30-21rcuc/211:10:002
2584064993124,4cyclictest0-21swapper/108:40:221
2584064993121,7cyclictest0-21swapper/111:20:291
2584064993121,6cyclictest0-21swapper/110:10:281
258406499311,26cyclictest0-21swapper/111:45:011
2584065993022,4cyclictest0-21swapper/207:45:212
2584065993017,8cyclictest2619105-21grep10:30:302
2584065993017,8cyclictest2619105-21grep10:30:292
2584064993022,5cyclictest0-21swapper/112:15:211
2584064992922,3cyclictest0-21swapper/109:10:121
2584064992922,3cyclictest0-21swapper/109:10:121
2584064992917,6cyclictest0-21swapper/109:25:291
2584061992921,6cyclictest0-21swapper/007:10:000
2584065992820,5cyclictest30-21rcuc/212:00:172
2584064992720,4cyclictest0-21swapper/108:05:251
2584064992618,6cyclictest0-21swapper/107:10:001
2584065992414,7cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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