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2026-03-15 - 00:29

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 Sat Mar 14, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
339610899119113,4cyclictest231ktimers/112:25:001
3396110991111,27cyclictest3409856-21kworker/u8:4+events_power_efficient08:40:192
339611099809,44cyclictest3414086-21apt-get08:55:022
339610699801,76cyclictest0-21swapper/007:45:010
3396108997412,20cyclictest24-21ksoftirqd/111:55:011
339611099722,30cyclictest30-21rcuc/212:35:012
3396106997240,27cyclictest3417474-21grep09:10:280
3396106997140,25cyclictest3452397-21grep12:35:290
339610699711,2cyclictest0-21swapper/010:30:010
339611099705,57cyclictest30-21rcuc/211:35:192
339611099702,46cyclictest30-21rcuc/211:55:012
339611099695,17cyclictest3416071-21/usr/sbin/munin09:05:202
339611099675,17cyclictest3443279-21/usr/sbin/munin11:45:172
339610699672,60cyclictest3413195-21grep08:45:270
3396106996633,26cyclictest23850irq/422-mmc111:05:020
339611099655,21cyclictest3422789-21gpgconf09:45:012
339611099655,21cyclictest3422789-21gpgconf09:45:002
339610899652,33cyclictest22-21rcuc/108:20:011
3396106996547,15cyclictest20650irq/252-8000000.ethernet11:05:220
3396106996426,34cyclictest0-21swapper/012:25:000
3396106996338,20cyclictest167350irq/118-8000000.ethernet-tx007:10:260
3396106996241,16cyclictest3450559-21ptp4l-jitter12:25:270
3396106996237,21cyclictest3424284-21unixbench_multi09:50:270
3396110996154,5cyclictest311ktimers/208:05:022
3396106996130,28cyclictest3448227-21latency_hist12:15:000
3396106996125,31cyclictest20850irq/208-8000000.ethernet11:45:180
3396106996121,31cyclictest0-21swapper/009:45:020
3396106996040,16cyclictest3398032-21cron07:20:010
339610699603,13cyclictest3413989-21grep08:50:260
3396106995927,28cyclictest20850irq/208-8000000.ethernet11:40:250
3396106995838,15cyclictest20650irq/252-8000000.ethernet11:15:010
3396106995830,21cyclictest0-21swapper/009:55:180
3396106995817,6cyclictest3439434-21grep11:20:260
3396106995738,15cyclictest20650irq/252-8000000.ethernet09:35:300
3396106995737,17cyclictest20650irq/252-8000000.ethernet08:20:170
3396106995732,21cyclictest3412371-21unixbench_singl08:40:290
3396106995730,23cyclictest3403741-21ptp4l-jitter07:50:270
339610699572,6cyclictest3419155-21grep09:20:290
339610699567,7cyclictest3422578-21grep09:40:280
3396106995630,22cyclictest3400961-21fschecks_time07:35:230
3396106995617,36cyclictest0-21swapper/008:35:290
339610699553,49cyclictest0-21swapper/011:35:180
3396106995515,3cyclictest3431450-21fschecks_count10:35:200
3396106995515,35cyclictest0-21swapper/011:25:260
3396106995514,3cyclictest3434726-21sed10:55:000
3396106995513,4cyclictest0-21swapper/012:00:290
339611099541,40cyclictest0-21swapper/208:20:012
3396106995431,19cyclictest3409602-21ps08:25:270
3396106995430,21cyclictest0-21swapper/008:35:010
3396106995415,35cyclictest0-21swapper/007:45:260
3396106995342,8cyclictest131ktimers/012:05:270
3396106995332,18cyclictest3406751-21df08:10:170
3396106995332,18cyclictest3406751-21df08:10:160
3396106995332,18cyclictest0-21swapper/007:20:190
339610699532,6cyclictest3426072-21users10:00:300
339610699532,49cyclictest0-21swapper/009:45:060
3396106995319,3cyclictest3421097-21latency_hist09:35:010
3396106995319,3cyclictest3421097-21latency_hist09:35:010
3396106995319,31cyclictest3449033-21grep12:15:270
3396106995319,31cyclictest3449033-21grep12:15:260
3396106995317,32cyclictest3435311-21grep10:55:300
339610699531,4cyclictest0-21swapper/008:05:290
3396106995314,34cyclictest0-21swapper/007:30:200
3396106995314,34cyclictest0-21swapper/007:30:200
339611099521,3cyclictest0-21swapper/211:20:192
3396106995238,11cyclictest0-21swapper/011:55:190
3396106995231,17cyclictest3419758-21meminfo09:25:230
339610699522,5cyclictest3416204-21/usr/sbin/munin09:05:210
339610699522,46cyclictest3417959-21sshd09:15:220
339610699522,46cyclictest3417959-21sshd09:15:220
3396106995219,29cyclictest0-21swapper/011:20:010
339610699521,11cyclictest3451698-21grep12:35:010
339610699516,5cyclictest0-21swapper/009:00:000
3396106995138,9cyclictest20650irq/252-8000000.ethernet07:25:270
339610699512,9cyclictest3428549-21grep10:15:270
3396106995123,24cyclictest3444664-21tail11:50:280
3396106995121,27cyclictest0-21swapper/011:30:250
3396106995117,3cyclictest3407653-21sh08:15:210
3396106995112,5cyclictest0-21swapper/008:00:170
3396110995040,7cyclictest3443081-21munin-plugin-st11:45:002
3396106995030,16cyclictest3430963-21grep10:30:280
3396106995029,18cyclictest0-21swapper/007:55:200
3396106995027,20cyclictest0-21swapper/009:00:240
3396106995015,30cyclictest0-21swapper/010:10:270
3396110994941,4cyclictest3409868-21munin-plugin-st08:30:002
3396106994930,15cyclictest0-21swapper/010:05:270
3396106994930,15cyclictest0-21swapper/010:05:260
3396110994834,8cyclictest0-21swapper/207:45:282
339611099481,21cyclictest30-21rcuc/209:55:012
3396108994839,5cyclictest3414198-21apt-key08:55:011
3396110994740,4cyclictest3449072-21sh12:20:002
3396110994740,4cyclictest3449072-21sh12:20:002
3396110994733,9cyclictest0-21swapper/212:15:002
339610699473,8cyclictest3428975-21grep10:20:190
3396106994714,28cyclictest0-21swapper/007:10:010
3396108994638,5cyclictest3429477-21munin-plugin-st10:25:011
3396108994631,9cyclictest0-21swapper/107:10:271
3396108994624,15cyclictest231ktimers/110:30:121
3396106994617,6cyclictest131ktimers/010:40:170
3396108994534,5cyclictest0-21swapper/112:09:591
3396108994525,12cyclictest231ktimers/112:00:011
3396106994519,23cyclictest20850irq/208-8000000.ethernet10:50:020
3396106994519,23cyclictest20850irq/208-8000000.ethernet10:50:010
3396110994430,9cyclictest0-21swapper/210:15:272
3396108994434,6cyclictest3442215-21cron11:40:001
3396108994413,7cyclictest24-21ksoftirqd/110:10:011
3396108994413,7cyclictest24-21ksoftirqd/110:10:011
3396110994334,5cyclictest0-21swapper/209:05:002
3396110994332,7cyclictest0-21swapper/209:55:292
3396110994329,9cyclictest0-21swapper/212:00:292
3396110994328,8cyclictest0-21swapper/210:25:282
3396110994328,8cyclictest0-21swapper/210:05:282
3396110994328,8cyclictest0-21swapper/210:05:282
339610899421,4cyclictest0-21swapper/109:00:011
3396110994127,8cyclictest0-21swapper/211:25:282
339611099411,2cyclictest0-21swapper/210:30:002
3396108994134,4cyclictest3399739-21munin-plugin-st07:30:001
339611099405,16cyclictest30-21rcuc/209:50:002
3396110994030,5cyclictest0-21swapper/212:35:172
339610899404,22cyclictest24-21ksoftirqd/109:55:121
3396108994031,5cyclictest0-21swapper/110:40:251
3396110993927,8cyclictest0-21swapper/210:40:262
3396110993927,7cyclictest0-21swapper/211:05:302
3396110993925,8cyclictest0-21swapper/212:20:292
3396110993923,8cyclictest0-21swapper/207:35:302
3396108993928,6cyclictest3430262-21grep10:25:291
3396108993927,9cyclictest0-21swapper/111:45:001
3396108993927,6cyclictest3403060-21grep07:45:291
3396108993926,9cyclictest0-21swapper/108:25:291
3396110993831,4cyclictest3447323-21apt-config12:10:012
3396110993826,8cyclictest0-21swapper/208:35:292
3396110993824,7cyclictest0-21swapper/211:55:262
3396108993831,4cyclictest3432008-21sendmail10:40:001
3396108993830,5cyclictest3443922-21munin-plugin-st11:50:001
3396108993828,5cyclictest0-21swapper/107:55:211
3396108993823,8cyclictest0-21swapper/110:55:301
3396110993725,8cyclictest0-21swapper/210:20:192
3396110993724,9cyclictest0-21swapper/208:10:272
3396110993724,9cyclictest0-21swapper/208:10:272
3396110993723,9cyclictest0-21swapper/211:30:242
3396110993721,11cyclictest0-21swapper/210:45:292
3396110993721,11cyclictest0-21swapper/210:45:292
3396110993719,8cyclictest0-21swapper/207:15:052
3396108993729,5cyclictest3416654-21grep09:05:291
3396110993623,9cyclictest0-21swapper/209:20:292
3396110993622,8cyclictest274-21systemd-journal09:40:002
3396108993627,5cyclictest0-21swapper/112:15:151
3396108993627,5cyclictest0-21swapper/112:15:151
3396108993627,4cyclictest3424364-21grep09:50:271
3396108993625,5cyclictest0-21swapper/111:20:291
3396108993623,9cyclictest231ktimers/111:10:101
3396108993623,8cyclictest0-21swapper/107:30:201
3396108993623,8cyclictest0-21swapper/107:30:201
3396108993620,12cyclictest231ktimers/112:35:141
3396108993619,9cyclictest0-21swapper/107:40:271
3396108993523,5cyclictest0-21swapper/112:05:001
339610899351,5cyclictest0-21swapper/109:50:011
3396108993512,12cyclictest231ktimers/110:00:111
339611099342,5cyclictest3425715-21irqstats10:00:232
3396110993424,7cyclictest311ktimers/212:25:242
3396110993424,4cyclictest0-21swapper/209:25:282
3396110993423,7cyclictest0-21swapper/207:25:292
3396110993422,8cyclictest0-21swapper/209:30:172
3396110993422,8cyclictest0-21swapper/209:30:172
3396110993421,7cyclictest0-21swapper/208:30:282
339611099341,28cyclictest0-21swapper/210:10:272
339611099341,26cyclictest0-21swapper/210:55:242
3396108993426,5cyclictest14-21rcu_preempt10:50:181
3396108993426,4cyclictest0-21swapper/109:35:301
3396108993426,4cyclictest0-21swapper/108:10:171
3396108993426,4cyclictest0-21swapper/108:10:171
3396108993423,7cyclictest22-21rcuc/109:00:251
3396108993418,10cyclictest231ktimers/112:10:141
3396110993320,8cyclictest0-21swapper/209:10:252
3396110993320,8cyclictest0-21swapper/207:15:002
339610899332,25cyclictest0-21swapper/107:50:121
339610899331,8cyclictest0-21swapper/108:10:011
3396108993317,9cyclictest0-21swapper/111:25:271
3396108993314,4cyclictest0-21swapper/111:10:011
339610899331,26cyclictest0-21swapper/109:20:201
3396110993222,7cyclictest0-21swapper/209:00:002
3396110993221,7cyclictest0-21swapper/207:55:302
3396110993218,8cyclictest14-21rcu_preempt11:15:092
3396108993225,4cyclictest3436178-21grep11:00:301
339610899322,3cyclictest0-21swapper/109:10:211
3396108993222,6cyclictest0-21swapper/111:30:271
3396108993219,8cyclictest3401372-21grep07:35:301
339610899321,24cyclictest3410066-21/usr/sbin/munin08:30:181
3396108993211,15cyclictest231ktimers/107:15:121
3396110993121,5cyclictest0-21swapper/209:20:012
3396110993121,5cyclictest0-21swapper/209:20:002
3396108993123,6cyclictest0-21swapper/109:30:201
3396108993123,6cyclictest0-21swapper/109:30:201
3396108993122,5cyclictest3412308-21grep08:40:281
3396108993119,6cyclictest0-21swapper/109:45:011
3396108993119,6cyclictest0-21swapper/109:45:011
339610899311,24cyclictest0-21swapper/112:25:301
339610899311,24cyclictest0-21swapper/110:45:191
339610899311,24cyclictest0-21swapper/110:45:181
339611099302,3cyclictest3408903-21find08:20:282
3396110993022,5cyclictest3412673-21df08:45:172
3396110993018,7cyclictest0-21swapper/211:00:222
339611099301,3cyclictest3401894-21irqstats07:40:232
3396108993022,5cyclictest3420086-21kworker/u8:0-events_freezable_power_10:15:181
3396108993021,6cyclictest3417826-21sshd09:15:191
3396108993021,6cyclictest3417826-21sshd09:15:181
3396108993021,4cyclictest3411543-21cron08:39:591
3396108993020,5cyclictest1261-21rs:main1
3396108993019,8cyclictest3451523-21unixbench_multi12:30:281
339611099298,5cyclictest8321systemd-network10:51:232
339611099291,8cyclictest0-21swapper/208:05:022
3396110992918,8cyclictest0-21swapper/210:35:212
3396110992918,7cyclictest0-21swapper/207:20:202
3396108992921,6cyclictest0-21swapper/108:45:251
3396110992818,7cyclictest0-21swapper/211:10:252
3396108992821,4cyclictest0-21swapper/108:20:271
3396108992818,8cyclictest3420087-21cron09:30:001
3396108992816,8cyclictest3427750-21dropbear10:10:301
3396110992718,5cyclictest0-21swapper/207:30:192
3396110992718,5cyclictest0-21swapper/207:30:192
3396110992717,7cyclictest0-21swapper/207:50:282
3396108992719,4cyclictest0-21swapper/107:20:281
339610899261,22cyclictest0-21swapper/111:19:081
3396108992516,7cyclictest0-21swapper/107:10:011
339611099186,7cyclictest0-21swapper/207:10:002
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