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2026-03-23 - 18:56

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 Mon Mar 23, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
298096599859,56cyclictest15-21rcuc/010:50:000
298096599801,38cyclictest0-21swapper/008:35:000
2980965997338,18cyclictest131ktimers/011:05:020
298096599661,61cyclictest0-21swapper/007:55:010
2980969996321,6cyclictest0-21swapper/208:35:212
298096599634,49cyclictest12-21ksoftirqd/011:15:010
2980969996218,10cyclictest0-21swapper/208:05:272
2980969996129,6cyclictest3016833-21grep10:35:312
2980969996031,24cyclictest0-21swapper/208:20:272
2980969996021,5cyclictest0-21swapper/210:00:202
2980969995927,4cyclictest0-21swapper/207:25:002
2980969995820,4cyclictest0-21swapper/210:15:012
2980967995541,10cyclictest231ktimers/110:50:151
298096599552,51cyclictest131ktimers/012:35:260
2980969995426,5cyclictest0-21swapper/207:15:052
2980967995418,13cyclictest3026429-21/usr/sbin/munin11:35:191
298096599543,6cyclictest2981692-21unixbench_multi07:10:280
298096599543,6cyclictest2981692-21unixbench_multi07:10:270
2980967995338,10cyclictest3030453-21sendmail12:00:011
2980967995338,10cyclictest3030453-21sendmail12:00:001
2980965995339,9cyclictest3013493-21sendmail10:20:000
2980969995230,16cyclictest0-21swapper/211:35:292
2980969995222,4cyclictest0-21swapper/211:50:012
2980967995244,5cyclictest3008422-21munin-plugin-st09:50:001
2980967995231,12cyclictest231ktimers/108:55:151
2980969995128,19cyclictest3033831-21sendmail12:20:002
2980967995136,10cyclictest0-21swapper/110:00:291
2980965995111,38cyclictest0-21swapper/007:15:210
2980969995022,8cyclictest0-21swapper/208:40:252
2980969995020,10cyclictest0-21swapper/210:55:222
2980967995036,10cyclictest231ktimers/110:35:171
298096599503,42cyclictest12-21ksoftirqd/011:35:010
298096599501,9cyclictest3016036-21latency_hist10:35:010
2980969994921,5cyclictest0-21swapper/212:10:282
2980969994921,5cyclictest0-21swapper/212:10:282
2980967994926,14cyclictest22-21rcuc/111:15:011
298096599495,18cyclictest12-21ksoftirqd/007:50:010
2980965994942,4cyclictest167350irq/118-8000000.ethernet-tx008:00:180
2980965994942,4cyclictest167350irq/118-8000000.ethernet-tx008:00:180
298096599493,4cyclictest2983441-21tail07:20:250
2980965994912,32cyclictest12-21ksoftirqd/008:20:180
2980969994815,13cyclictest2992475-21/usr/sbin/munin08:15:192
2980967994816,26cyclictest0-21swapper/109:15:301
2980965994841,4cyclictest167350irq/118-8000000.ethernet-tx009:35:230
2980967994727,13cyclictest231ktimers/110:45:111
2980965994710,5cyclictest0-21swapper/009:25:010
2980969994613,10cyclictest2981901-21memory07:15:012
2980969994613,10cyclictest2981901-21memory07:15:012
2980967994626,13cyclictest231ktimers/108:45:111
2980965994627,12cyclictest131ktimers/012:25:110
298096599461,43cyclictest0-21swapper/011:20:200
2980969994525,15cyclictest311ktimers/209:30:132
2980967994535,6cyclictest3000737-21munin-plugin-st09:04:591
2980967994533,6cyclictest3013366-21grep10:15:291
2980967994528,11cyclictest0-21swapper/109:30:281
2980967994527,11cyclictest231ktimers/110:20:111
2980965994537,4cyclictest167350irq/118-8000000.ethernet-tx008:10:140
298096599453,39cyclictest0-21swapper/010:40:250
298096599452,5cyclictest2991057-21irqstats08:05:250
2980965994519,23cyclictest15-21rcuc/008:40:290
298096599441,41cyclictest0-21swapper/011:15:190
298096599441,41cyclictest0-21swapper/011:15:190
298096599441,37cyclictest15-21rcuc/011:10:020
298096599441,36cyclictest0-21swapper/011:55:010
2980969994331,8cyclictest0-21swapper/211:15:202
2980969994331,8cyclictest0-21swapper/211:15:202
2980967994336,4cyclictest3031310-21munin-plugin-st12:04:591
2980967994330,8cyclictest0-21swapper/109:05:291
2980967994323,14cyclictest231ktimers/108:30:111
2980967994319,16cyclictest231ktimers/109:10:111
2980965994337,4cyclictest167350irq/118-8000000.ethernet-tx009:45:010
298096599432,4cyclictest3034120-21diskstats12:20:160
2980965994322,6cyclictest131ktimers/011:45:290
298096599431,9cyclictest0-21swapper/008:20:010
298096599431,40cyclictest0-21swapper/011:25:270
2980967994234,5cyclictest2990597-21munin-plugin-st08:05:001
2980967994234,5cyclictest2990597-21munin-plugin-st08:05:001
2980967994225,11cyclictest0-21swapper/107:45:291
2980967994221,10cyclictest0-21swapper/110:10:291
2980967994221,10cyclictest0-21swapper/110:10:291
2980967994219,9cyclictest22-21rcuc/111:35:011
298096599427,33cyclictest0-21swapper/008:45:130
2980965994233,5cyclictest15-21rcuc/009:45:220
2980965994230,4cyclictest167350irq/118-8000000.ethernet-tx007:40:020
2980965994218,20cyclictest1660-21snmpd11:55:130
2980965994218,20cyclictest1660-21snmpd11:55:130
298096599421,4cyclictest0-21swapper/007:30:210
2980969994128,9cyclictest3013393-21grep10:15:282
2980969994126,9cyclictest1283-21cron10:50:012
2980967994133,4cyclictest2986284-21sendmail07:40:001
2980967994127,7cyclictest0-21swapper/108:40:291
2980967994126,9cyclictest0-21swapper/111:45:291
2980967994124,13cyclictest231ktimers/109:35:141
2980967994123,11cyclictest0-21swapper/110:30:201
2980967994122,13cyclictest231ktimers/109:40:111
2980965994134,4cyclictest0-21swapper/008:25:170
2980965994134,4cyclictest0-21swapper/008:25:170
2980965994133,4cyclictest15-21rcuc/009:35:010
298096599413,34cyclictest0-21swapper/008:35:220
298096599412,33cyclictest2999818-21unixbench_singl08:55:300
298096599411,3cyclictest3001005-21diskstats09:05:180
298096599411,38cyclictest0-21swapper/010:25:210
298096599411,38cyclictest0-21swapper/010:00:170
2980969994031,6cyclictest0-21swapper/209:44:592
2980969994025,11cyclictest311ktimers/210:05:142
298096799409,5cyclictest3037205-21apt-get12:40:021
2980967994032,4cyclictest14-21rcu_preempt10:05:261
2980967994029,6cyclictest0-21swapper/111:20:271
2980967994024,11cyclictest231ktimers/112:25:131
298096599404,32cyclictest2986176-21grep07:35:290
298096599404,30cyclictest12-21ksoftirqd/009:05:010
298096599401,37cyclictest0-21swapper/012:00:210
298096599401,36cyclictest3011994-21/usr/sbin/munin10:10:220
298096599401,36cyclictest3011994-21/usr/sbin/munin10:10:210
298096599401,2cyclictest0-21swapper/010:10:000
2980965994010,3cyclictest3027603-21open_inodes11:40:250
2980969993927,8cyclictest0-21swapper/210:35:002
2980967993928,7cyclictest0-21swapper/111:00:281
298096599393,6cyclictest0-21swapper/011:00:000
298096599393,31cyclictest0-21swapper/012:20:000
2980965993924,10cyclictest0-21swapper/010:00:000
2980965993916,21cyclictest14-21rcu_preempt10:20:210
298096599391,2cyclictest0-21swapper/009:30:000
2980969993823,9cyclictest0-21swapper/207:30:202
2980967993828,7cyclictest0-21swapper/107:25:291
2980967993827,7cyclictest0-21swapper/107:10:281
2980967993827,7cyclictest0-21swapper/107:10:281
2980967993824,8cyclictest0-21swapper/109:50:281
2980965993831,5cyclictest0-21swapper/012:05:140
298096599381,4cyclictest0-21swapper/012:10:250
298096599381,4cyclictest0-21swapper/012:10:250
298096599381,35cyclictest0-21swapper/009:15:140
2980969993727,7cyclictest0-21swapper/212:05:272
298096799371,30cyclictest0-21swapper/108:10:211
2980965993732,2cyclictest0-21swapper/007:25:210
2980965993720,15cyclictest0-21swapper/009:10:130
2980969993626,5cyclictest0-21swapper/208:34:592
298096999361,28cyclictest2989959-21sshd08:00:122
298096999361,28cyclictest2989959-21sshd08:00:122
2980967993624,9cyclictest0-21swapper/110:25:291
2980967993624,8cyclictest3017700-21grep10:40:271
2980967993623,8cyclictest0-21swapper/107:50:261
298096799361,29cyclictest22-21rcuc/108:15:151
298096599363,30cyclictest3016010-21apt-get10:35:040
2980965993629,4cyclictest0-21swapper/007:10:000
298096599361,33cyclictest0-21swapper/010:50:120
298096599361,2cyclictest0-21swapper/007:55:000
2980965993611,23cyclictest0-21swapper/011:35:170
2980969993522,8cyclictest0-21swapper/211:55:242
2980969993522,8cyclictest0-21swapper/211:55:242
2980967993525,6cyclictest0-21swapper/112:05:261
2980967993523,8cyclictest0-21swapper/107:20:271
2980967993521,9cyclictest0-21swapper/112:10:281
2980967993521,9cyclictest0-21swapper/112:10:271
2980967993515,14cyclictest231ktimers/111:40:121
298096799351,28cyclictest0-21swapper/112:15:191
2980965993529,4cyclictest0-21swapper/009:50:090
298096599351,3cyclictest2998496-21sh08:50:210
2980969993426,5cyclictest3023910-21/usr/sbin/munin11:20:162
2980969993425,5cyclictest0-21swapper/210:25:222
2980969993423,8cyclictest2989724-21sshd07:58:262
2980969993423,7cyclictest311ktimers/208:50:122
298096799343,19cyclictest24-21ksoftirqd/108:35:131
2980967993425,6cyclictest2989733-21sh08:00:011
2980967993424,7cyclictest3003475-21/usr/sbin/munin09:20:211
2980967993420,9cyclictest0-21swapper/109:25:261
2980969993325,5cyclictest3025587-21/usr/sbin/munin11:30:172
2980969993325,5cyclictest2987119-21grep07:40:292
2980969993325,4cyclictest0-21swapper/210:50:282
2980969993322,8cyclictest3004620-21sshd09:25:252
2980969993320,7cyclictest0-21swapper/209:35:262
2980967993326,4cyclictest0-21swapper/112:30:281
2980967993321,9cyclictest0-21swapper/109:55:251
298096799331,7cyclictest2993483-21tune2fs08:20:201
2980967993313,12cyclictest231ktimers/111:25:111
2980965993324,7cyclictest131ktimers/012:30:150
2980969993222,7cyclictest0-21swapper/212:20:272
2980967993221,7cyclictest0-21swapper/111:20:001
2980967993221,7cyclictest0-21swapper/111:20:001
298096799321,6cyclictest2994602-21ptp4l-jitter08:25:271
298096799321,6cyclictest2994602-21ptp4l-jitter08:25:261
2980969993125,4cyclictest0-21swapper/209:55:002
2980969993122,6cyclictest3014234-21grep10:20:282
2980969993122,5cyclictest0-21swapper/209:05:222
2980969993121,6cyclictest0-21swapper/208:10:202
298096799313,2cyclictest0-21swapper/111:00:011
2980967993125,3cyclictest0-21swapper/108:50:201
2980967993121,4cyclictest3029597-21sshd11:53:241
2980969993019,6cyclictest0-21swapper/207:40:022
2980969993017,9cyclictest0-21swapper/207:50:202
2980969993013,15cyclictest167550irq/134-8000000.ethernet-tx211:00:172
2980969993013,14cyclictest167550irq/134-8000000.ethernet-tx209:45:252
2980969993013,14cyclictest167550irq/134-8000000.ethernet-tx209:14:122
298096799301,4cyclictest0-21swapper/111:05:121
298096799301,13cyclictest0-21swapper/107:30:011
2980969992922,4cyclictest0-21swapper/208:55:252
2980969992921,4cyclictest0-21swapper/211:50:202
2980969992921,4cyclictest0-21swapper/207:45:262
2980969992920,7cyclictest311ktimers/211:25:232
2980969992920,6cyclictest3022211-21/usr/sbin/munin11:10:152
2980969992920,5cyclictest3004066-21grep09:20:282
2980969992920,5cyclictest0-21swapper/207:25:292
2980969992918,8cyclictest0-21swapper/209:15:232
2980969992918,6cyclictest0-21swapper/209:05:012
2980967992918,8cyclictest0-21swapper/107:40:281
2980969992820,5cyclictest0-21swapper/211:05:282
2980969992820,4cyclictest0-21swapper/210:40:212
2980969992819,4cyclictest0-21swapper/212:25:252
2980969992818,7cyclictest3031245-21unixbench_singl12:00:292
2980969992818,7cyclictest2998114-21grep08:45:282
2980967992818,7cyclictest0-21swapper/107:15:281
2980969992720,4cyclictest0-21swapper/210:10:292
2980969992717,7cyclictest0-21swapper/209:55:252
2980969992713,12cyclictest3027408-21ssh11:40:212
2980967992717,7cyclictest0-21swapper/112:20:181
2980967992716,8cyclictest0-21swapper/108:05:291
2980969992618,6cyclictest311ktimers/208:25:202
2980969992618,6cyclictest311ktimers/208:25:202
2980969992614,10cyclictest311ktimers/212:35:182
2980969992611,13cyclictest167550irq/134-8000000.ethernet-tx212:30:222
2980967992515,7cyclictest0-21swapper/107:10:011
2980969992112,6cyclictest2981115-21latency_hist07:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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