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2026-08-12 - 19:06

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 Wed Aug 12, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2502395998971,13cyclictest0-21swapper/311:05:013
2502391996831,31cyclictest0-21swapper/112:10:011
2502391996826,31cyclictest0-21swapper/108:00:321
2502394996645,14cyclictest311ktimers/210:40:122
2502391996531,28cyclictest0-21swapper/112:05:001
2502391996325,29cyclictest0-21swapper/108:30:011
2502391996325,29cyclictest0-21swapper/108:30:011
2502391996322,31cyclictest0-21swapper/112:30:291
2502394996123,30cyclictest311ktimers/211:10:012
2502391996123,7cyclictest2531144-21cut09:55:261
2502391996123,7cyclictest0-21swapper/108:40:301
2502391996121,6cyclictest0-21swapper/112:35:191
2502391996121,32cyclictest0-21swapper/109:10:201
2502391996115,11cyclictest0-21swapper/107:30:211
2502391996115,11cyclictest0-21swapper/107:30:211
250239099617,14cyclictest12-21ksoftirqd/008:25:000
2502391996019,6cyclictest0-21swapper/109:45:271
250239199593,18cyclictest2515274-21head08:20:311
2502391995820,32cyclictest0-21swapper/111:05:191
2502391995722,8cyclictest2535995-21cut10:25:211
2502391995622,6cyclictest0-21swapper/111:55:261
2502391995620,4cyclictest0-21swapper/110:15:221
2502394995533,15cyclictest311ktimers/210:15:132
2502391995520,4cyclictest0-21swapper/110:50:171
2502391995423,7cyclictest2535601-21grep10:20:311
2502391995417,8cyclictest0-21swapper/107:40:281
2502390995432,19cyclictest167350irq/118-8000000.ethernet-tx009:55:170
2502390995320,30cyclictest2539890-21grep10:45:290
2502390995245,4cyclictest2541654-21sendmail11:00:000
2502390995245,4cyclictest2541654-21sendmail11:00:000
2502394995133,12cyclictest311ktimers/208:15:132
2502391995131,17cyclictest231ktimers/111:15:011
250239199512,18cyclictest2528817-21grep09:40:281
2502391995120,8cyclictest231ktimers/109:00:251
2502390995126,22cyclictest15-21rcuc/009:00:220
250239099511,21cyclictest15-21rcuc/010:30:000
2502394995028,16cyclictest311ktimers/210:25:132
2502391995024,5cyclictest1653-21lldpd10:40:201
2502391995023,5cyclictest2503111-21grep07:10:281
2502390995031,16cyclictest167350irq/118-8000000.ethernet-tx010:10:170
2502394994929,13cyclictest311ktimers/209:05:112
2502391994921,5cyclictest0-21swapper/107:20:171
2502390994839,7cyclictest2555177-21sendmail12:20:000
2502390994839,7cyclictest2555177-21sendmail12:20:000
2502390994834,10cyclictest15-21rcuc/008:50:160
250239099482,44cyclictest0-21swapper/007:55:240
2502391994733,10cyclictest0-21swapper/111:45:001
250239099479,36cyclictest0-21swapper/012:00:250
2502390994739,4cyclictest167350irq/118-8000000.ethernet-tx009:30:020
250239099472,40cyclictest2526576-21/usr/sbin/munin09:30:200
250239099471,40cyclictest15-21rcuc/009:20:010
2502394994612,23cyclictest32-21ksoftirqd/208:50:012
2502390994638,5cyclictest2538284-21run-parts10:40:000
250239199452,34cyclictest2519511-21unixbench_multi08:45:271
250239099457,36cyclictest0-21swapper/008:40:000
2502390994537,3cyclictest0-21swapper/008:40:300
250239099452,41cyclictest0-21swapper/011:30:010
2502390994512,31cyclictest15-21rcuc/008:19:590
2502390994436,5cyclictest2506860-21munin-plugin-st07:35:000
2502390994436,5cyclictest2506860-21munin-plugin-st07:35:000
2502390994434,5cyclictest2554224-21tail12:10:290
2502390994433,5cyclictest2503406-21latency_hist07:15:020
250239499432,26cyclictest311ktimers/212:35:182
2502394994321,12cyclictest311ktimers/210:30:112
2502391994327,11cyclictest0-21swapper/109:15:291
2502390994337,4cyclictest2504326-21munin-plugin-st07:20:010
250239499426,15cyclictest2541869-21/usr/sbin/munin11:00:212
2502391994229,9cyclictest0-21swapper/109:35:281
2502391994229,9cyclictest0-21swapper/109:35:271
2502390994236,4cyclictest167350irq/118-8000000.ethernet-tx007:45:180
2502390994233,5cyclictest2547002-21diskstats11:30:180
2502390994224,16cyclictest12-21ksoftirqd/009:05:240
250239099421,38cyclictest0-21swapper/007:50:260
2502394994132,4cyclictest0-21swapper/209:15:202
2502391994133,5cyclictest2507702-21munin-plugin-st07:40:001
2502391994129,7cyclictest0-21swapper/110:30:271
2502390994132,6cyclictest2528002-21grep09:35:290
2502390994132,6cyclictest2528002-21grep09:35:280
250239099412,37cyclictest0-21swapper/008:05:270
2502390994122,14cyclictest131ktimers/008:10:160
250239099411,5cyclictest2511352-21df08:00:190
250239099411,38cyclictest0-21swapper/008:55:200
250239099411,38cyclictest0-21swapper/008:55:190
250239099411,37cyclictest0-21swapper/011:50:150
250239099411,35cyclictest0-21swapper/012:10:010
2502394994031,5cyclictest0-21swapper/210:05:302
2502394994026,10cyclictest0-21swapper/210:35:262
2502390994033,4cyclictest0-21swapper/012:35:170
2502390994032,5cyclictest131ktimers/009:45:250
2502390994030,5cyclictest2507610-21sed07:35:280
250239099402,9cyclictest2549078-21sendmail_mailqu11:40:280
2502390994015,21cyclictest0-21swapper/008:30:020
2502390994015,21cyclictest0-21swapper/008:30:010
2502394993928,6cyclictest0-21swapper/211:30:282
2502394993917,17cyclictest311ktimers/208:10:142
2502391993928,7cyclictest0-21swapper/108:50:281
2502391993926,6cyclictest2548356-21grep11:35:301
2502391993926,6cyclictest2548356-21grep11:35:291
250239099397,28cyclictest2508559-21munin-plugin-st07:45:000
250239099395,9cyclictest0-21swapper/011:05:010
2502390993933,4cyclictest0-21swapper/007:25:160
2502390993933,4cyclictest0-21swapper/007:20:250
250239099392,35cyclictest0-21swapper/012:25:160
2502390993918,19cyclictest0-21swapper/010:24:520
250239099391,36cyclictest0-21swapper/010:00:260
2502394993828,7cyclictest0-21swapper/210:05:002
2502394993828,6cyclictest0-21swapper/212:15:282
2502394993828,6cyclictest0-21swapper/212:15:282
2502394993827,7cyclictest0-21swapper/207:10:282
2502394993825,8cyclictest0-21swapper/211:05:282
2502394993821,12cyclictest311ktimers/209:20:112
2502394993814,18cyclictest2544387-21/usr/sbin/munin11:15:182
2502391993826,8cyclictest0-21swapper/111:55:001
2502391993825,6cyclictest0-21swapper/108:35:281
2502391993824,8cyclictest2510228-21cron07:55:001
250239199382,28cyclictest2546664-21unixbench_singl11:25:291
250239199381,2cyclictest0-21swapper/112:30:011
250239099381,4cyclictest0-21swapper/008:45:240
250239099381,35cyclictest0-21swapper/011:15:290
250239099381,35cyclictest0-21swapper/011:05:140
250239099381,35cyclictest0-21swapper/010:30:100
250239499376,28cyclictest2174514-21kworker/2:2-events07:41:192
2502394993729,4cyclictest0-21swapper/211:55:262
2502394993728,4cyclictest0-21swapper/209:55:202
2502394993727,7cyclictest0-21swapper/207:25:302
2502394993727,6cyclictest0-21swapper/212:20:302
2502394993724,9cyclictest0-21swapper/208:40:292
2502394993723,10cyclictest0-21swapper/212:35:022
250239099378,4cyclictest15-21rcuc/010:05:220
2502390993733,2cyclictest0-21swapper/011:45:170
2502390993732,3cyclictest0-21swapper/011:35:180
2502390993732,3cyclictest0-21swapper/011:35:180
2502390993728,7cyclictest0-21swapper/010:40:210
2502390993727,6cyclictest131ktimers/012:35:010
250239099371,34cyclictest0-21swapper/009:10:110
2502394993629,4cyclictest0-21swapper/211:35:302
2502394993629,4cyclictest0-21swapper/211:35:302
2502394993627,5cyclictest0-21swapper/211:45:172
2502394993627,4cyclictest0-21swapper/210:50:302
250239499362,4cyclictest0-21swapper/210:15:012
2502394993622,9cyclictest0-21swapper/209:40:272
2502391993626,5cyclictest0-21swapper/112:15:281
2502391993626,5cyclictest0-21swapper/112:15:281
2502391993623,9cyclictest0-21swapper/107:55:271
250239199360,2cyclictest0-21swapper/110:10:001
2502390993632,2cyclictest0-21swapper/009:45:000
2502390993629,4cyclictest20850irq/208-8000000.ethernet11:15:000
2502390993626,6cyclictest15-21rcuc/009:20:240
2502390993623,11cyclictest0-21swapper/011:24:520
250239099361,3cyclictest0-21swapper/012:20:240
250239099361,33cyclictest0-21swapper/009:53:520
250239099361,33cyclictest0-21swapper/009:53:520
250239099361,32cyclictest2540759-21grep10:50:300
2502394993527,4cyclictest0-21swapper/208:25:302
2502394993527,4cyclictest0-21swapper/208:25:302
2502394993523,5cyclictest0-21swapper/211:20:212
2502394993522,9cyclictest0-21swapper/208:25:012
2502394993517,13cyclictest311ktimers/208:35:112
2502391993524,6cyclictest0-21swapper/111:45:291
250239199351,28cyclictest0-21swapper/112:20:191
2502390993525,5cyclictest2517024-21latency_hist08:35:010
250239099351,3cyclictest2551337-21ssh11:55:190
2502394993424,5cyclictest0-21swapper/207:55:262
2502394993423,7cyclictest2509594-21/usr/sbin/munin07:50:112
2502394993423,7cyclictest0-21swapper/208:55:212
2502394993423,7cyclictest0-21swapper/208:55:212
2502394993422,9cyclictest0-21swapper/209:30:302
2502394993421,8cyclictest0-21swapper/207:45:282
2502394993416,12cyclictest311ktimers/212:00:152
250239499341,27cyclictest0-21swapper/209:45:182
2502391993426,6cyclictest231ktimers/111:30:231
250239199341,2cyclictest0-21swapper/111:20:011
250239099345,27cyclictest15-21rcuc/010:15:280
2502394993325,5cyclictest2553401-21grep12:05:322
2502394993323,7cyclictest0-21swapper/209:10:282
2502394993320,9cyclictest0-21swapper/212:10:272
2502394993317,13cyclictest311ktimers/209:25:142
250239499331,26cyclictest0-21swapper/211:50:282
250239499331,26cyclictest0-21swapper/208:30:212
2502394993312,15cyclictest311ktimers/210:20:162
2502391993325,5cyclictest0-21swapper/110:10:151
2502391993323,6cyclictest0-21swapper/109:25:151
2502394993226,3cyclictest167550irq/134-8000000.ethernet-tx207:24:232
2502394993223,4cyclictest0-21swapper/207:35:282
2502394993221,7cyclictest0-21swapper/207:30:292
2502394993221,7cyclictest0-21swapper/207:30:292
2502394993220,8cyclictest2530477-21unixbench_multi09:50:282
2502394993220,8cyclictest2530477-21unixbench_multi09:50:272
2502394993215,10cyclictest30-21rcuc/208:05:172
2502391993225,5cyclictest0-21swapper/108:05:181
2502391993225,4cyclictest0-21swapper/112:10:281
250239199322,4cyclictest0-21swapper/111:00:201
2502391993222,7cyclictest0-21swapper/108:10:281
2502391993222,5cyclictest0-21swapper/109:30:201
2502391993222,4cyclictest0-21swapper/111:20:221
2502394993121,6cyclictest0-21swapper/209:35:212
2502394993121,6cyclictest0-21swapper/209:35:212
2502394993118,9cyclictest0-21swapper/211:40:262
250239199312,17cyclictest2538210-21sed10:35:281
2502391993120,5cyclictest0-21swapper/107:50:011
250239199311,2cyclictest0-21swapper/109:25:011
2502394993023,4cyclictest0-21swapper/207:15:272
2502394993022,5cyclictest0-21swapper/209:00:282
250239499301,24cyclictest0-21swapper/208:00:192
2502391993021,5cyclictest0-21swapper/108:55:291
2502391993021,5cyclictest0-21swapper/108:55:281
2502391993019,8cyclictest231ktimers/108:30:251
2502391993019,5cyclictest0-21swapper/108:15:211
2502394992919,7cyclictest0-21swapper/210:45:282
2502394992919,7cyclictest0-21swapper/208:50:292
2502394992918,8cyclictest0-21swapper/211:25:292
2502391992920,5cyclictest0-21swapper/107:15:031
2502391992919,6cyclictest0-21swapper/110:45:291
2502394992820,4cyclictest0-21swapper/210:55:192
2502394992820,4cyclictest0-21swapper/210:55:192
2502394992814,11cyclictest311ktimers/212:25:132
2502391992821,5cyclictest231ktimers/110:55:291
2502391992821,5cyclictest231ktimers/110:55:281
2502391992821,4cyclictest0-21swapper/109:50:271
2502391992821,4cyclictest0-21swapper/109:50:271
2502391992815,10cyclictest0-21swapper/109:10:001
2502394992618,5cyclictest0-21swapper/207:10:012
250239199261,22cyclictest0-21swapper/107:27:181
2502390992615,6cyclictest131ktimers/007:10:020
2502391992516,6cyclictest231ktimers/110:00:151
250239199202,10cyclictest2502480-21latency_hist07:10:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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