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2026-07-01 - 17:34

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

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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  Intel
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, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack5slot4s.osadl.org (updated Wed Jul 01, 2026 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8021752910,3chrt0-21swapper/009:25:220
8643002800,3sleep00-21swapper/010:30:140
662103996256,4cyclictest630057-21kworker/u8:1+events_unbound07:25:281
662101995952,5cyclictest662243-21kworker/u8:0+flush-8:008:25:280
662101995752,3cyclictest763790-21kworker/u8:1+flush-8:009:05:300
662103995648,6cyclictest788132-21kworker/u8:0+events_unbound09:20:251
8521842550,2sleep375-21kworker/3:1-events10:15:213
662107995442,9cyclictest813772-21apt-get09:40:002
662103995449,4cyclictest662243-21kworker/u8:0+flush-8:007:30:321
662103995449,3cyclictest853304-21kworker/u8:2+events_unbound10:20:001
662103995246,4cyclictest833831-21kworker/u8:3+events_unbound10:35:291
662103995246,4cyclictest833831-21kworker/u8:3+events_unbound10:35:291
662103995145,5cyclictest913949-21kworker/u8:0+flush-8:012:15:261
662103995145,4cyclictest709810-21kworker/u8:2+events_unbound07:55:271
662103995143,6cyclictest788132-21kworker/u8:0+flush-8:009:25:261
7078152500,3chrt451irq_work/307:50:213
662103995045,4cyclictest833831-21kworker/u8:3+flush-8:010:00:241
662103995044,4cyclictest913949-21kworker/u8:0+flush-8:011:20:261
662103995042,6cyclictest833831-21kworker/u8:3+flush-8:010:50:301
662103994944,4cyclictest788132-21kworker/u8:0+events_unbound09:40:281
662103994939,8cyclictest942516-21ntpq11:45:231
662103994841,5cyclictest946313-21kworker/u8:2+flush-8:012:25:251
662101994845,2cyclictest738361-21kworker/u8:3+flush-8:008:30:300
662107994735,9cyclictest843694-21/usr/sbin/munin10:10:002
662103994742,4cyclictest788132-21kworker/u8:0+flush-8:010:40:301
662103994740,5cyclictest833831-21kworker/u8:3+flush-8:011:00:241
662103994740,5cyclictest788132-21kworker/u8:0+flush-8:010:10:241
662103994740,5cyclictest693809-21apt-key07:40:011
662101994741,4cyclictest662243-21kworker/u8:0+flush-8:007:30:280
662103994641,4cyclictest985482-21kworker/u8:0+events_unbound12:35:281
662103994641,4cyclictest788132-21kworker/u8:0+events_unbound10:25:311
662103994640,5cyclictest763790-21kworker/u8:1+flush-8:009:05:261
662103994640,5cyclictest630057-21kworker/u8:1+events_unbound08:05:271
662103994640,4cyclictest883859-21kworker/u8:2+flush-8:010:55:261
662101994639,4cyclictest754575-21kworker/u8:2+flush-8:009:00:180
662103994540,4cyclictest899000-21kworker/u8:4+events_unbound11:25:241
662103994536,7cyclictest739161-21latency_hist08:25:021
662101994538,5cyclictest918912-21/usr/sbin/munin11:25:220
662101994536,7cyclictest768280-21ntpq08:50:230
662103994440,3cyclictest763790-21kworker/u8:1+events_unbound09:00:351
662103994440,3cyclictest662243-21kworker/u8:0+events_unbound07:15:141
662103994440,3cyclictest662243-21kworker/u8:0+events_unbound07:15:131
662103994438,5cyclictest946313-21kworker/u8:2+flush-8:012:20:301
662103994437,5cyclictest630057-21kworker/u8:1+flush-8:008:10:161
662103994433,8cyclictest907840-21ntpq11:10:251
662101994434,8cyclictest1704890-21systemd-journal07:50:010
662101994434,7cyclictest683181-21python307:25:280
662103994339,3cyclictest662243-21kworker/u8:0+events_unbound08:25:331
662103994338,4cyclictest899000-21kworker/u8:4+flush-8:011:15:251
662103994338,4cyclictest763790-21kworker/u8:1+events_unbound09:10:141
662103994238,3cyclictest913949-21kworker/u8:0+flush-8:011:35:241
662103994137,3cyclictest662243-21kworker/u8:0+events_unbound08:35:211
662103994136,4cyclictest763790-21kworker/u8:1+flush-8:008:55:261
662103994136,3cyclictest788575-21kworker/u8:4+events_unbound09:35:341
662101994136,4cyclictest738361-21kworker/u8:3+flush-8:008:45:150
662101994131,7cyclictest1704890-21systemd-journal11:35:100
662103994034,4cyclictest843924-21kworker/u8:1+events_unbound10:20:231
662103993934,3cyclictest788575-21kworker/u8:4+flush-8:009:15:211
662103993933,5cyclictest913949-21kworker/u8:0+flush-8:011:55:301
662103993933,5cyclictest709810-21kworker/u8:2+events_unbound08:15:281
662103993932,5cyclictest967790-21grep12:10:291
662103993930,6cyclictest1704890-21systemd-journal07:25:001
662101993933,4cyclictest729036-21apt-get08:15:010
662101993933,4cyclictest662243-21kworker/u8:0+events_unbound07:20:170
662103993834,3cyclictest630057-21kworker/u8:1+flush-8:007:40:211
662103993833,4cyclictest788132-21kworker/u8:0+events_unbound10:05:141
662103993832,5cyclictest833831-21kworker/u8:3+flush-8:011:05:251
662103993832,4cyclictest763790-21kworker/u8:1+flush-8:008:50:261
662101993832,5cyclictest788132-21kworker/u8:0+flush-8:009:30:310
662101993828,8cyclictest1704890-21systemd-journal12:05:010
662103993732,4cyclictest899000-21kworker/u8:4+events_unbound11:50:141
662103993731,4cyclictest788132-21kworker/u8:0+flush-8:009:45:211
662103993728,6cyclictest1704890-21systemd-journal10:31:091
662101993732,3cyclictest788132-21kworker/u8:0+flush-8:009:40:300
662101993731,4cyclictest630057-21kworker/u8:1+flush-8:007:15:340
662101993731,4cyclictest630057-21kworker/u8:1+flush-8:007:15:340
662101993727,8cyclictest909252-21diskstats11:15:130
662101993626,8cyclictest813772-21apt-get09:40:000
662103993531,3cyclictest788132-21kworker/u8:0+flush-8:009:55:241
662103993531,2cyclictest843924-21kworker/u8:1+events_unbound10:45:151
662103993530,3cyclictest662243-21kworker/u8:0+events_unbound08:45:291
662103993530,3cyclictest630057-21kworker/u8:1+events_unbound07:50:191
662103993525,8cyclictest666035-21ntpq07:10:251
662103993525,8cyclictest666035-21ntpq07:10:241
662101993530,4cyclictest709810-21kworker/u8:2+flush-8:007:55:280
662101993530,3cyclictest788132-21kworker/u8:0+events_unbound09:10:290
662101993528,4cyclictest938068-21grep11:40:310
662101993523,9cyclictest1704890-21systemd-journal11:35:000
662103993429,3cyclictest788132-21kworker/u8:0+events_unbound09:30:191
662103993428,4cyclictest709810-21kworker/u8:2+flush-8:008:00:261
662103993423,8cyclictest927720-21ntpq11:30:241
662101993427,5cyclictest893800-21/usr/sbin/munin11:00:220
662103993325,6cyclictest703048-21ntpq07:45:241
662103993322,9cyclictest1704890-21systemd-journal08:31:511
662101993329,3cyclictest662243-21kworker/u8:0+flush-8:008:10:320
662101993325,6cyclictest1704890-21systemd-journal09:59:590
662103993224,6cyclictest758477-21ntpq08:40:281
662107993124,5cyclictest908749-21awk11:15:012
662107993124,4cyclictest849251-21fschecks_time10:15:142
662103993125,5cyclictest788575-21kworker/u8:4+events_unbound09:50:141
662101993129,1cyclictest985482-21kworker/u8:0+events_unbound12:35:300
662101993127,3cyclictest843924-21kworker/u8:1+flush-8:010:20:290
662101993126,4cyclictest899000-21kworker/u8:4+flush-8:011:45:300
662107993025,3cyclictest749609-21aten2_r5power_c08:35:132
662107993019,8cyclictest807931-21ntpq09:30:252
662103993026,3cyclictest946313-21kworker/u8:2+events_unbound12:30:151
662103993026,3cyclictest934574-21irqrtprio11:40:181
662101993025,3cyclictest833831-21kworker/u8:3+flush-8:010:35:310
662101993025,3cyclictest833831-21kworker/u8:3+flush-8:010:35:310
662101993025,3cyclictest630057-21kworker/u8:1+events_unbound07:50:280
662101993020,8cyclictest874274-21diskstats10:40:140
662107992924,3cyclictest952917-21unixbench_multi11:55:292
662103992925,3cyclictest913949-21kworker/u8:0+events_unbound12:05:301
662101992926,2cyclictest913949-21kworker/u8:0+flush-8:012:05:250
662101992925,3cyclictest788132-21kworker/u8:0+events_unbound09:15:300
662101992923,4cyclictest952917-21unixbench_multi11:55:300
662107992824,2cyclictest938875-21aten2_r5power_p11:45:122
662107992824,2cyclictest888620-21idleruntime-cro10:55:012
662107992822,4cyclictest903287-21unixbench_multi11:05:292
662107992818,8cyclictest703956-21apt-get07:50:002
662107992817,8cyclictest832962-21ntpq09:55:292
662101992824,3cyclictest847142-21kthreadcore10:10:210
662101992824,2cyclictest978654-21cpuspeed_turbos12:25:130
662101992823,4cyclictest788132-21kworker/u8:0+events_unbound10:25:290
662101992822,5cyclictest709810-21kworker/u8:2+flush-8:008:02:400
662101992818,8cyclictest734731-21diskstats08:20:130
662107992717,7cyclictest734201-21turbostat.cron08:20:012
662101992723,3cyclictest883859-21kworker/u8:2+events_unbound10:55:280
662101992723,3cyclictest748865-21kworker/u8:1+flush-8:008:35:320
662101992722,4cyclictest946313-21kworker/u8:2+flush-8:012:20:300
662101992721,4cyclictest1-21systemd12:20:010
662107992623,2cyclictest698577-21unixbench_multi07:40:322
662101992619,5cyclictest1704890-21systemd-journal07:15:000
662101992619,5cyclictest1704890-21systemd-journal07:14:590
662107992522,2cyclictest758861-21unixbench_multi08:40:322
662107992522,2cyclictest708184-21grep07:50:232
662107992521,2cyclictest973545-21aten2_r5power_p12:20:132
662107992521,2cyclictest719576-21cpuspeed_turbos08:05:132
662101992521,3cyclictest913949-21kworker/u8:0+flush-8:011:20:190
662101992521,3cyclictest833831-21kworker/u8:3+flush-8:010:50:310
662101992521,3cyclictest833831-21kworker/u8:3+flush-8:010:00:300
662101992520,4cyclictest928342-21kworker/u8:1+flush-8:012:10:260
662101992520,3cyclictest794870-21irqcore09:20:180
662101992519,4cyclictest843319-21unixbench_singl10:05:310
662101992519,4cyclictest723646-21unixbench_singl08:05:350
66210199251,18cyclictest662099-21cat07:10:010
8197802240,2sleep20-21swapper/209:45:172
6661452240,4sleep3471rcuc/307:10:283
6661452240,4sleep3471rcuc/307:10:283
662107992421,2cyclictest988672-21aten2_r5power_e12:35:122
662107992421,2cyclictest953686-21aten2_r5power_c12:00:132
662107992421,2cyclictest858202-21unixbench_multi10:20:302
662107992420,3cyclictest684326-21cpuspeed_turbos07:30:152
662107992420,2cyclictest983994-21fschecks_time12:30:152
662107992420,2cyclictest674200-21aten2_r5power_c07:20:132
662107992418,4cyclictest793598-21unixbench_singl09:15:322
662101992420,3cyclictest788132-21kworker/u8:0+events_unbound10:49:150
662101992419,3cyclictest900685-21taskset11:05:190
662101992417,5cyclictest692798-21ntpq07:35:220
662101992417,5cyclictest1704890-21systemd-journal08:45:010
662107992320,2cyclictest869273-21cpuspeed_turbos10:35:152
662107992320,2cyclictest869273-21cpuspeed_turbos10:35:142
66210799231,20cyclictest693842-21munin-run07:40:012
662101992319,3cyclictest853209-21unixbench_multi10:15:300
662101992319,3cyclictest1-21systemd07:45:000
662101992319,2cyclictest0-21swapper/009:50:140
662101992318,3cyclictest0-21swapper/009:00:010
662101992313,8cyclictest1704890-21systemd-journal09:50:000
7649832220,2sleep3471rcuc/308:50:173
662107992218,2cyclictest923980-21aten2_r5power_p11:30:122
662107992218,2cyclictest0-21swapper/208:00:012
662107992217,3cyclictest768220-21grep08:50:232
662107992212,8cyclictest749087-21apt08:35:012
662101992216,4cyclictest946313-21kworker/u8:2+flush-8:012:30:210
66210799214,2cyclictest8643022ls10:30:152
66210799212,13cyclictest814289-21apt-get09:40:122
662107992116,3cyclictest0-21swapper/207:15:012
662107992116,3cyclictest0-21swapper/207:15:012
662107992115,4cyclictest1704890-21systemd-journal09:14:592
662103992116,3cyclictest946313-21kworker/u8:2+events_unbound12:00:191
662101992117,3cyclictest946313-21kworker/u8:2+events_unbound11:50:300
6616282214,11sleep10-21swapper/107:06:021
9050472200,2sleep3481ktimers/311:10:193
66210799208,4cyclictest0-21swapper/211:50:132
66210799202,13cyclictest824177-21apt-get09:50:122
662107992017,2cyclictest878966-21aten2_r5power_c10:45:102
662107992016,2cyclictest0-21swapper/207:15:132
662107992016,2cyclictest0-21swapper/207:15:122
662107992015,3cyclictest0-21swapper/211:05:002
662107992015,3cyclictest0-21swapper/209:00:002
6616562204,9sleep20-21swapper/207:06:222
662107991915,2cyclictest0-21swapper/212:15:122
662107991915,2cyclictest0-21swapper/209:00:172
662107991914,3cyclictest803480-21unixbench_singl09:25:312
662101991913,4cyclictest905611-21kthreadcore11:10:190
662107991815,2cyclictest834381-21fschecks_time10:00:142
662107991813,3cyclictest0-21swapper/212:30:012
662107991813,3cyclictest0-21swapper/208:15:012
662107991811,5cyclictest848677-21cat10:15:002
662107991810,6cyclictest912483-21tr11:15:212
66210799180,7cyclictest764251-21munin-run08:50:012
6611302183,8sleep30-21swapper/307:05:263
662107991714,2cyclictest859422-21fschecks_count10:25:162
662107991713,2cyclictest0-21swapper/212:05:212
662107991713,2cyclictest0-21swapper/211:30:012
66210799168,6cyclictest1704890-21systemd-journal07:30:002
66210799167,7cyclictest914752-21sed11:20:172
662107991613,2cyclictest0-21swapper/211:38:332
662107991613,2cyclictest0-21swapper/208:26:112
662107991612,2cyclictest0-21swapper/211:00:012
662107991612,2cyclictest0-21swapper/209:20:142
662107991611,3cyclictest0-21swapper/212:10:192
662107991610,4cyclictest0-21swapper/208:20:182
66210799157,6cyclictest780004-21sed09:05:192
66210799152,12cyclictest0-21swapper/210:41:572
662107991510,3cyclictest0-21swapper/211:40:192
66210799150,2cyclictest714740-21fschecks_time08:00:152
7131462142,8sleep30-21swapper/307:55:243
9821972132,7sleep30-21swapper/312:25:253
8891152132,7sleep30-21swapper/310:55:153
8240452132,6sleep30-21swapper/309:50:013
8201432132,7sleep30-21swapper/309:45:193
7982842133,6sleep30-21swapper/309:20:323
7921902133,6sleep30-21swapper/309:15:223
7743992134,5sleep30-21swapper/309:00:143
7391822132,6sleep30-21swapper/308:25:023
9886172123,6sleep30-21swapper/312:35:123
9739852122,6sleep30-21swapper/312:20:193
9682672122,5sleep30-21swapper/312:15:013
9678812122,6sleep30-21swapper/312:10:323
9589572122,6sleep30-21swapper/312:05:143
9533602122,6sleep30-21swapper/312:00:003
9434482122,6sleep30-21swapper/311:50:013
9387932122,6sleep30-21swapper/311:45:123
9336302122,6sleep30-21swapper/311:40:013
9148682122,6sleep30-21swapper/311:20:193
9087572122,6sleep30-21swapper/311:15:023
8988392121,6sleep30-21swapper/311:05:023
8859982122,6sleep30-21swapper/310:50:213
8789402122,6sleep30-21swapper/310:45:123
8741382122,6sleep30-21swapper/310:40:143
8687722121,6sleep30-21swapper/310:35:013
8634832122,6sleep30-21swapper/310:25:343
8582842122,6sleep30-21swapper/310:20:313
8448432122,6sleep30-21swapper/310:10:213
8293582122,6sleep30-21swapper/309:55:163
8145302122,6sleep30-21swapper/309:40:153
8128682122,6sleep30-21swapper/309:35:333
8081472123,6sleep30-21swapper/309:30:313
7989762122,5sleep30-21swapper/309:25:023
7732682122,6sleep30-21swapper/308:55:273
7638312122,6sleep30-21swapper/308:45:333
7345422122,6sleep30-21swapper/308:20:113
7296612122,6sleep30-21swapper/308:15:153
7248342122,6sleep30-21swapper/308:10:213
7236412122,6sleep30-21swapper/308:05:353
7144162122,6sleep30-21swapper/308:00:143
6755182122,6sleep30-21swapper/307:20:213
6732282122,6sleep30-21swapper/307:15:313
6732282122,6sleep30-21swapper/307:15:303
9836022112,5sleep30-21swapper/312:30:023
9536602112,6sleep30-21swapper/312:00:133
9326632111,6sleep30-21swapper/311:35:253
9276612112,5sleep30-21swapper/311:30:233
9193962112,5sleep30-21swapper/311:25:163
8937952112,5sleep30-21swapper/311:00:093
8699362112,5sleep30-21swapper/310:35:203
8699362112,5sleep30-21swapper/310:35:203
8338192112,4sleep30-21swapper/310:00:013
7842982112,6sleep30-21swapper/309:10:123
7798572112,5sleep30-21swapper/309:05:193
7550782112,5sleep30-21swapper/308:40:183
7539032112,5sleep30-21swapper/308:35:333
7443522112,5sleep30-21swapper/308:30:123
7038182112,6sleep30-21swapper/307:48:223
6969962112,5sleep30-21swapper/307:40:233
6895702112,5sleep30-21swapper/307:35:183
6841862112,5sleep30-21swapper/307:30:153
6791162112,6sleep30-21swapper/307:25:063
8434182102,5sleep30-21swapper/310:06:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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