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2026-06-23 - 20:13

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 Tue Jun 23, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37009599761,61cyclictest0-21swapper/009:05:080
370100997335,32cyclictest423949-21unixbench_singl12:20:312
370100997128,37cyclictest412080-21munin-plugin-st11:15:012
37009799719,18cyclictest374854-21/usr/sbin/munin07:35:191
370100997023,38cyclictest0-21swapper/207:15:262
370095996646,17cyclictest0-21swapper/009:05:010
370100996431,27cyclictest0-21swapper/209:50:022
37010099633,20cyclictest0-21swapper/208:55:012
370100996318,5cyclictest0-21swapper/208:10:292
370100996219,9cyclictest371174-21sed07:15:012
370100996120,32cyclictest0-21swapper/208:00:282
370100996118,5cyclictest0-21swapper/209:20:222
370100996028,27cyclictest0-21swapper/211:10:002
37009599609,13cyclictest401601-1kworker/0:0H+kblockd10:50:020
370100995932,23cyclictest0-21swapper/207:20:292
370100995922,32cyclictest0-21swapper/209:45:002
370100995922,31cyclictest0-21swapper/210:10:202
370100995921,33cyclictest0-21swapper/207:40:202
370100995822,31cyclictest0-21swapper/208:30:272
370100995816,8cyclictest378767-21grep07:55:272
370100995816,7cyclictest408634-21grep10:50:292
370100995713,8cyclictest0-21swapper/212:30:292
370100995713,8cyclictest0-21swapper/212:30:292
37010099571,2cyclictest376555-21apt-get07:45:132
370100995624,28cyclictest0-21swapper/211:30:272
370095995614,36cyclictest0-21swapper/008:55:260
370100995523,26cyclictest0-21swapper/207:30:202
370100995519,31cyclictest0-21swapper/211:20:192
370100995519,31cyclictest0-21swapper/211:20:182
370100995518,5cyclictest0-21swapper/212:35:292
370100995515,8cyclictest0-21swapper/211:00:292
370095995532,20cyclictest0-21swapper/011:40:180
37010099547,13cyclictest375423-21grep07:35:292
370097995440,11cyclictest399411-21munin-plugin-st10:00:011
370097995440,11cyclictest399411-21munin-plugin-st10:00:011
370100995323,26cyclictest0-21swapper/211:45:302
370095995339,10cyclictest372119-21sendmail07:20:000
370097995241,6cyclictest388165-21munin-plugin-st08:54:591
370100995122,25cyclictest424842-21munin-plugin-st12:30:002
370100995120,5cyclictest0-21swapper/209:55:012
370100995116,4cyclictest0-21swapper/209:15:212
370100995115,7cyclictest0-21swapper/210:20:292
370100995114,8cyclictest409481-21grep10:55:292
370100995114,8cyclictest409481-21grep10:55:282
370095995141,6cyclictest0-21swapper/009:45:270
370095995136,10cyclictest0-21swapper/007:15:020
370095995132,15cyclictest131ktimers/011:35:140
37010099509,13cyclictest370089-21cyclictest11:35:142
37010099505,14cyclictest0-21swapper/208:55:252
370095995041,6cyclictest381318-21grep08:10:280
370095995041,5cyclictest421462-21munin-plugin-st12:10:010
370095995028,17cyclictest403603-21unixbench_singl10:20:290
370100994920,23cyclictest0-21swapper/210:40:002
37010099491,42cyclictest0-21swapper/208:35:202
370097994937,8cyclictest378882-21munin-plugin-st08:00:001
370097994934,9cyclictest0-21swapper/112:05:231
370095994942,4cyclictest167350irq/118-8000000.ethernet-tx007:50:180
370095994939,5cyclictest411243-21munin-plugin-st11:09:590
370095994928,18cyclictest0-21swapper/012:35:110
370095994840,4cyclictest167350irq/118-8000000.ethernet-tx012:30:000
370100994719,3cyclictest0-21swapper/208:15:242
370100994718,24cyclictest0-21swapper/208:40:182
370097994738,5cyclictest386486-21munin-plugin-st08:45:001
37009599473,6cyclictest393146-21/usr/sbin/munin09:20:270
370095994726,18cyclictest0-21swapper/010:40:260
37009599471,44cyclictest0-21swapper/009:55:140
37009599471,44cyclictest0-21swapper/009:55:130
370095994710,23cyclictest384987-21/usr/sbin/munin08:35:200
370100994634,8cyclictest0-21swapper/209:30:002
37009599464,39cyclictest411219-21kworker/u8:3+events_power_efficient11:25:130
37009599461,4cyclictest413556-21tail11:20:250
37009599461,4cyclictest413556-21tail11:20:250
37010099453,16cyclictest421341-21unixbench_multi12:05:302
370097994532,9cyclictest0-21swapper/111:15:021
370097994512,9cyclictest370898-21apt-get07:15:021
370095994539,4cyclictest0-21swapper/010:00:110
370097994424,13cyclictest231ktimers/111:45:141
370095994437,5cyclictest0-21swapper/009:10:260
37009599443,6cyclictest391794-21df09:15:160
370100994328,9cyclictest0-21swapper/208:20:282
370100994322,2cyclictest0-21swapper/211:50:162
370097994335,4cyclictest167450irq/126-8000000.ethernet-tx109:00:111
370097994326,8cyclictest22-21rcuc/111:20:111
370097994326,8cyclictest22-21rcuc/111:20:111
370097994314,16cyclictest394368-21/usr/sbin/munin09:30:191
37009599435,5cyclictest398477-21apt-get09:55:000
370095994337,3cyclictest386485-21munin-plugin-st08:45:000
370095994336,4cyclictest167350irq/118-8000000.ethernet-tx011:10:290
37009599431,4cyclictest0-21swapper/009:40:020
370097994231,5cyclictest0-21swapper/108:10:281
370097994229,8cyclictest397522-21grep09:45:281
370097994229,8cyclictest0-21swapper/108:15:301
370097994225,9cyclictest0-21swapper/109:25:291
370095994238,2cyclictest0-21swapper/007:40:200
370095994235,3cyclictest0-21swapper/008:20:270
370095994234,4cyclictest167350irq/118-8000000.ethernet-tx008:15:210
37009599423,36cyclictest0-21swapper/012:30:260
37009599423,36cyclictest0-21swapper/012:30:260
370095994232,4cyclictest402784-21cron10:20:000
370095994224,15cyclictest409746-21date11:00:020
370095994223,17cyclictest0-21swapper/008:50:380
37009599421,4cyclictest0-21swapper/012:00:140
370100994120,4cyclictest373808-21cron07:30:012
37009799415,15cyclictest24-21ksoftirqd/111:10:011
370097994123,13cyclictest231ktimers/108:00:121
37009799411,2cyclictest0-21swapper/109:55:011
370095994133,4cyclictest20850irq/208-8000000.ethernet08:30:200
370095994131,4cyclictest387333-21latency_hist08:50:010
37009599411,4cyclictest376618-21df_inode07:45:180
37009599411,38cyclictest0-21swapper/009:25:120
37009599411,38cyclictest0-21swapper/007:30:220
370100994019,5cyclictest416516-21/usr/sbin/munin11:40:222
370097994029,5cyclictest0-21swapper/110:15:221
370097994024,11cyclictest231ktimers/107:45:121
370097994018,14cyclictest231ktimers/112:00:111
37009799401,11cyclictest0-21swapper/112:15:011
370097994010,13cyclictest231ktimers/108:50:011
370095994033,4cyclictest0-21swapper/010:35:010
370095994031,6cyclictest373295-21dropbear07:25:190
370095994031,5cyclictest406074-21grep10:35:270
370095994028,8cyclictest0-21swapper/010:50:290
37009599401,37cyclictest0-21swapper/010:55:170
37009599401,35cyclictest0-21swapper/011:55:030
37009599401,2cyclictest0-21swapper/009:30:290
370100993929,6cyclictest404381-21grep10:25:302
37009799399,8cyclictest419001-21rm11:55:021
370097993932,4cyclictest14-21rcu_preempt07:15:291
370097993928,5cyclictest0-21swapper/111:30:241
370097993924,10cyclictest0-21swapper/107:20:251
370097993912,22cyclictest231ktimers/108:35:021
370095993932,5cyclictest131ktimers/008:25:200
370095993932,4cyclictest20650irq/252-8000000.ethernet10:10:250
37009599391,36cyclictest0-21swapper/011:30:110
37009599391,34cyclictest422937-21gzip12:15:260
37009599391,34cyclictest422937-21gzip12:15:260
370100993825,8cyclictest0-21swapper/212:15:192
370100993825,8cyclictest0-21swapper/212:15:182
370100993825,5cyclictest0-21swapper/212:10:282
370097993829,5cyclictest0-21swapper/112:35:281
370097993826,8cyclictest0-21swapper/110:50:291
370097993825,9cyclictest0-21swapper/110:30:271
370097993825,8cyclictest0-21swapper/109:20:011
370097993821,12cyclictest231ktimers/110:40:131
37009599384,4cyclictest0-21swapper/007:25:010
370095993827,7cyclictest0-21swapper/008:05:290
370095993827,7cyclictest0-21swapper/008:05:290
37009599381,3cyclictest410278-21/usr/sbin/munin11:00:290
37009599381,35cyclictest0-21swapper/012:20:160
370100993726,7cyclictest0-21swapper/208:05:292
370100993726,7cyclictest0-21swapper/208:05:282
37009799373,13cyclictest22-21rcuc/110:30:011
370097993728,4cyclictest0-21swapper/110:00:211
370097993727,6cyclictest396713-21grep09:40:271
370095993730,4cyclictest0-21swapper/011:15:110
37009599372,7cyclictest418645-21find11:50:260
37009599371,3cyclictest0-21swapper/007:35:120
37009599371,32cyclictest0-21swapper/009:40:020
370100993626,4cyclictest0-21swapper/208:45:202
370100993618,12cyclictest0-21swapper/209:10:292
370100993613,9cyclictest0-21swapper/209:05:262
370097993627,4cyclictest0-21swapper/112:30:201
370097993627,4cyclictest0-21swapper/112:30:201
370097993614,13cyclictest401301-21/usr/sbin/munin10:10:201
370095993631,2cyclictest0-21swapper/012:10:290
370095993621,8cyclictest0-21swapper/010:10:010
370097993525,6cyclictest0-21swapper/108:05:211
370097993525,6cyclictest0-21swapper/108:05:211
370095993528,4cyclictest0-21swapper/007:55:180
370097993425,5cyclictest0-21swapper/110:05:281
370097993425,4cyclictest0-21swapper/110:45:221
370097993423,7cyclictest0-21swapper/109:35:281
370097993421,9cyclictest0-21swapper/107:50:281
370097993418,11cyclictest0-21swapper/111:35:191
37009799341,4cyclictest0-21swapper/110:40:011
37009799341,4cyclictest0-21swapper/109:25:011
37009799340,29cyclictest200-21pr/ttyS211:00:011
37009799340,29cyclictest200-21pr/ttyS211:00:001
37009599341,31cyclictest0-21swapper/011:46:160
370100993323,6cyclictest0-21swapper/211:25:272
370097993326,4cyclictest167450irq/126-8000000.ethernet-tx112:15:131
370097993326,4cyclictest167450irq/126-8000000.ethernet-tx112:15:131
370097993322,7cyclictest0-21swapper/108:25:301
37009599331,3cyclictest379186-21ssh08:00:190
37009599331,3cyclictest0-21swapper/010:25:560
370100993225,4cyclictest1261-21rs:main2
370097993225,4cyclictest231ktimers/108:20:221
370097993224,5cyclictest413978-21/usr/sbin/munin11:25:261
370097993221,8cyclictest0-21swapper/109:10:011
370097993221,6cyclictest424833-21cron12:30:001
37009799321,4cyclictest0-21swapper/112:25:001
37009799321,4cyclictest0-21swapper/109:00:001
370097993212,4cyclictest832-21systemd-network11:44:271
370097993123,5cyclictest409762-21/usr/sbin/munin11:00:251
370097993121,6cyclictest0-21swapper/107:30:011
370100993024,4cyclictest395940-21sendmail09:40:012
370100993024,4cyclictest0-21swapper/208:25:182
370100993023,5cyclictest399622-21/usr/sbin/munin10:00:182
370097993023,5cyclictest391511-21uptime09:10:291
370097993022,6cyclictest412277-21/usr/sbin/munin11:15:181
370097993022,5cyclictest0-21swapper/110:20:211
370097993018,6cyclictest0-21swapper/107:40:291
370097993015,8cyclictest0-21swapper/112:00:011
37009799301,2cyclictest0-21swapper/107:10:011
370100992923,4cyclictest389863-21munin-run09:05:012
370100992919,7cyclictest311ktimers/209:30:102
37010099291,25cyclictest1660-21snmpd10:09:342
370100992911,6cyclictest405265-21grep10:30:292
370097992918,7cyclictest0-21swapper/108:35:201
370095992922,5cyclictest0-21swapper/007:10:010
370100992818,7cyclictest0-21swapper/207:50:192
37010099281,2cyclictest0-21swapper/207:10:002
370097992819,4cyclictest0-21swapper/107:30:271
370100992722,4cyclictest0-21swapper/209:55:302
370100992722,4cyclictest0-21swapper/209:55:302
370100992717,6cyclictest0-21swapper/211:15:182
37010099263,7cyclictest419980-21/usr/sbin/munin12:00:182
370100992615,8cyclictest0-21swapper/210:40:272
37010099251,4cyclictest0-21swapper/210:47:382
370100992415,5cyclictest0-21swapper/210:15:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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