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2026-09-02 - 04:29

OSADL QA Farm on Real-time of Mainline Linux

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

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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  Phytec
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: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackbslot5s.osadl.org (updated Wed Sep 02, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2790389995043,4cyclictest2839329-21grep21:30:000
2790402994638,5cyclictest2880480-21cut23:30:003
2790394994537,5cyclictest2853185-21grep22:10:011
2790402994333,6cyclictest164-21systemd-journal00:38:263
2790394994336,3cyclictest0-21swapper/121:45:001
2790394994335,4cyclictest0-21swapper/123:05:011
2790394994334,6cyclictest2809924-21unixbench_singl20:00:271
2790402994232,7cyclictest2809922-21grep20:00:273
2790394994233,5cyclictest0-21swapper/121:00:011
2790398994133,4cyclictest2863426-21sendmail22:40:002
2790394994133,5cyclictest2868531-21cron22:55:011
2790394994133,5cyclictest2835908-21munin-run21:20:011
2790394994030,6cyclictest0-21swapper/121:05:011
2790394994028,9cyclictest2864641-21grep22:40:251
2790389994029,8cyclictest2885586-21cron23:45:000
2790389994029,8cyclictest2885586-21cron23:44:590
2790394993931,5cyclictest2858315-21munin-plugin-st22:25:001
2790389993931,4cyclictest0-21swapper/023:05:010
2790389993930,6cyclictest2864655-21grep22:40:250
2790398993831,3cyclictest0-21swapper/222:15:002
2790394993827,7cyclictest2876632-21grep23:15:271
2790389993829,5cyclictest0-21swapper/022:35:010
2790389993827,7cyclictest2876586-21grep23:15:260
2790402993730,4cyclictest2815444-21munin-plugin-st20:20:013
2790402993729,4cyclictest0-21swapper/319:25:023
2790398993729,4cyclictest0-21swapper/219:25:002
2790398993629,3cyclictest0-21swapper/219:35:012
2790394993628,4cyclictest0-21swapper/120:40:161
2790394993626,7cyclictest2837623-21audit_send_reply21:25:001
2790389993628,5cyclictest0-21swapper/021:20:000
2790389993628,5cyclictest0-21swapper/021:05:010
2790389993626,6cyclictest0-21swapper/000:10:010
2790402993526,4cyclictest0-21swapper/300:05:163
2790402993525,7cyclictest0-21swapper/300:25:003
2790402993525,6cyclictest0-21swapper/322:00:013
2790398993527,3cyclictest0-21swapper/223:00:132
2790389993525,7cyclictest2818404-21grep20:25:270
2790389993521,4cyclictest131rcu_preempt19:10:130
2790402993425,6cyclictest0-21swapper/322:20:013
2790402993425,5cyclictest0-21swapper/322:55:013
2790398993426,4cyclictest0-21swapper/221:29:592
2790398993425,5cyclictest0-21swapper/220:50:002
2790394993425,6cyclictest2874922-21grep23:10:251
2790394993424,6cyclictest2879990-21grep23:25:241
2790389993427,4cyclictest2815439-21latency_hist20:20:010
279038999340,31cyclictest0-21swapper/000:25:120
2790402993325,4cyclictest0-21swapper/322:30:163
2790402993325,4cyclictest0-21swapper/319:15:263
2790402993322,7cyclictest0-21swapper/321:20:163
2790398993326,4cyclictest2851259-21cron22:05:012
2790398993321,7cyclictest0-21swapper/219:45:252
2790394993325,4cyclictest0-21swapper/121:35:151
2790394993325,4cyclictest0-21swapper/121:35:141
2790394993325,4cyclictest0-21swapper/100:35:261
2790394993319,9cyclictest2815445-21tr20:20:011
2790394993313,5cyclictest131rcu_preempt22:30:121
2790389993324,6cyclictest2793849-21grep19:15:260
2790389993322,8cyclictest121ktimers/020:45:130
2790402993225,3cyclictest0-21swapper/319:30:173
2790402993224,4cyclictest0-21swapper/323:50:253
2790402993221,8cyclictest391ktimers/320:30:153
2790402993221,8cyclictest2853169-21cron22:10:003
2790402993221,7cyclictest2892414-21sh00:05:013
2790402993220,8cyclictest0-21swapper/319:50:013
2790398993225,4cyclictest2853173-21sh22:10:012
2790398993225,3cyclictest0-21swapper/200:30:002
2790389993221,7cyclictest0-21swapper/021:00:010
2790402993123,5cyclictest2882171-21cron23:35:003
2790402993123,4cyclictest0-21swapper/322:11:473
2790402993123,4cyclictest0-21swapper/321:20:003
2790402993123,4cyclictest0-21swapper/320:20:263
2790402993122,5cyclictest0-21swapper/320:45:273
2790402993121,6cyclictest0-21swapper/321:35:253
2790402993121,6cyclictest0-21swapper/321:35:243
2790398993124,4cyclictest0-21swapper/219:35:162
2790398993124,4cyclictest0-21swapper/219:35:162
2790398993123,4cyclictest0-21swapper/200:15:272
2790398993122,6cyclictest0-21swapper/223:40:002
2790398993120,7cyclictest0-21swapper/222:55:252
2790398993120,7cyclictest0-21swapper/220:30:272
2790394993123,4cyclictest0-21swapper/123:45:161
2790394993121,6cyclictest0-21swapper/123:30:261
2790389993123,5cyclictest2874258-21latency23:10:190
2790389993123,4cyclictest0-21swapper/022:56:530
2790389993122,6cyclictest0-21swapper/022:30:000
2790389993121,6cyclictest0-21swapper/022:20:010
2790402993023,4cyclictest0-21swapper/323:05:253
2790402993022,5cyclictest0-21swapper/320:35:263
2790402993022,4cyclictest0-21swapper/322:05:013
2790402993022,4cyclictest0-21swapper/320:05:153
2790402993021,6cyclictest0-21swapper/320:00:003
2790402993020,6cyclictest2844043-21head21:40:243
279040299301,5cyclictest131rcu_preempt20:55:123
2790398993021,6cyclictest2814099-21fschecks_count20:15:172
2790398993020,6cyclictest0-21swapper/220:25:272
2790394993023,4cyclictest2856586-21kthreadd22:20:011
2790394993023,4cyclictest0-21swapper/121:30:151
2790394993022,5cyclictest2792302-21runrttasks19:15:021
2790394993022,4cyclictest0-21swapper/120:50:161
2790394993022,4cyclictest0-21swapper/119:55:291
2790389993023,4cyclictest0-21swapper/021:30:260
2790402992922,4cyclictest2790381-21cyclictest21:35:003
2790402992916,9cyclictest2866375-21grep22:45:283
2790398992922,4cyclictest2822253-21cron20:40:012
2790398992922,4cyclictest0-21swapper/222:15:272
2790398992922,4cyclictest0-21swapper/221:10:152
2790398992922,4cyclictest0-21swapper/219:50:262
2790398992917,8cyclictest311ktimers/222:40:122
2790394992920,6cyclictest0-21swapper/123:35:151
2790394992919,6cyclictest0-21swapper/119:40:251
2790394992919,6cyclictest0-21swapper/119:40:251
2790394992918,7cyclictest2799069-21cat19:30:271
2790389992922,4cyclictest0-21swapper/021:20:260
2790389992919,7cyclictest2797526-21grep19:25:290
2790389992918,6cyclictest2802614-21grep19:40:250
2790389992918,6cyclictest2802614-21grep19:40:250
279038999291,13cyclictest2880474-21idleruntime-cro23:30:000
2790402992822,4cyclictest2849269-21kworker/u8:2+events_unbound22:26:403
2790402992820,5cyclictest0-21swapper/323:35:253
2790402992820,5cyclictest0-21swapper/300:35:003
2790402992820,5cyclictest0-21swapper/300:35:003
2790402992820,4cyclictest2832182-21kworker/u8:2+events_unbound21:06:333
2790402992820,4cyclictest0-21swapper/323:00:013
2790402992819,6cyclictest0-21swapper/322:35:263
2790402992818,6cyclictest0-21swapper/300:25:253
2790398992821,4cyclictest0-21swapper/219:20:012
2790398992817,6cyclictest0-21swapper/221:35:002
2790394992819,6cyclictest2873649-21latency_hist23:10:011
2790394992819,6cyclictest2849111-21grep21:55:261
2790389992821,4cyclictest0-21swapper/019:35:260
2790389992821,4cyclictest0-21swapper/019:35:250
2790389992821,3cyclictest0-21swapper/022:40:010
2790389992819,6cyclictest2873646-21sh23:10:010
2790389992819,5cyclictest0-21swapper/000:20:250
2790389992816,8cyclictest204-21dbus-daemon19:51:240
2790402992719,4cyclictest0-21swapper/323:00:243
2790402992718,6cyclictest2790633-21ls19:10:143
2790402992718,6cyclictest0-21swapper/319:40:013
2790402992718,6cyclictest0-21swapper/319:40:003
2790402992718,4cyclictest0-21swapper/300:12:083
2790402992717,7cyclictest2873880-21apt-get23:10:133
2790402992717,6cyclictest0-21swapper/319:45:003
2790402992717,6cyclictest0-21swapper/319:45:003
2790398992721,3cyclictest0-21swapper/222:00:012
2790398992720,4cyclictest0-21swapper/220:00:252
2790398992718,6cyclictest2831209-21fschecks_time21:05:152
2790398992718,6cyclictest0-21swapper/221:55:012
2790398992718,6cyclictest0-21swapper/221:20:162
2790398992717,7cyclictest1-21systemd20:11:272
2790394992718,6cyclictest2898212-21tune2fs00:20:161
2790394992717,6cyclictest0-21swapper/100:10:261
279038999275,4cyclictest131rcu_preempt21:50:120
2790389992719,5cyclictest13850irq/36-mmc100:40:000
2790389992718,5cyclictest2826954-21grep20:50:260
2790402992619,4cyclictest0-21swapper/319:50:163
2790402992618,5cyclictest0-21swapper/323:40:163
2790402992618,5cyclictest0-21swapper/323:40:153
2790402992615,8cyclictest2826476-21ntp_states20:50:213
2790398992620,4cyclictest311ktimers/221:20:012
2790398992620,4cyclictest2878405-21kworker/u8:1+events_unbound23:21:582
2790398992620,3cyclictest2887434-21latency_hist23:50:012
2790398992619,3cyclictest0-21swapper/220:50:212
2790398992619,3cyclictest0-21swapper/200:05:262
2790398992616,6cyclictest0-21swapper/221:40:002
2790398992616,6cyclictest0-21swapper/221:40:002
2790398992615,6cyclictest0-21swapper/223:10:262
2790394992618,4cyclictest0-21swapper/119:25:011
2790394992617,6cyclictest0-21swapper/100:20:001
2790394992615,8cyclictest2849999-21tune2fs22:00:171
2790389992622,2cyclictest0-21swapper/021:10:110
2790389992619,4cyclictest0-21swapper/021:40:160
2790389992618,4cyclictest0-21swapper/022:10:010
2790389992617,6cyclictest0-21swapper/000:05:010
2790402992517,4cyclictest0-21swapper/300:00:013
2790402992515,7cyclictest2863656-21apt-get22:40:113
2790402992515,7cyclictest2818370-21grep20:25:263
2790402992515,7cyclictest0-21swapper/300:20:003
2790402992515,6cyclictest0-21swapper/323:15:263
279039899255,4cyclictest2899491-21cat00:24:592
2790398992519,3cyclictest0-21swapper/221:40:232
2790398992515,6cyclictest0-21swapper/220:05:242
2790398992515,6cyclictest0-21swapper/200:05:012
2790394992519,3cyclictest2892699-21cpu00:05:141
2790394992519,3cyclictest0-21swapper/120:05:201
2790394992518,4cyclictest0-21swapper/123:20:201
2790394992518,4cyclictest0-21swapper/120:10:271
2790394992517,5cyclictest0-21swapper/100:25:241
2790394992514,8cyclictest2862497-21ntpq22:35:211
279038999252,6cyclictest0-21swapper/020:00:150
2790389992519,3cyclictest0-21swapper/022:55:000
2790389992519,3cyclictest0-21swapper/019:20:260
2790389992518,4cyclictest121ktimers/020:05:240
2790389992518,3cyclictest0-21swapper/022:04:020
279038999251,22cyclictest2894549-21runrttasks00:10:050
2790402992417,3cyclictest0-21swapper/321:50:173
2790402992416,6cyclictest391ktimers/321:45:133
2790402992416,5cyclictest0-21swapper/319:25:163
2790402992416,4cyclictest0-21swapper/323:25:003
2790398992418,3cyclictest0-21swapper/221:00:262
2790398992417,4cyclictest2861271-21unixbench_singl22:30:272
2790398992416,5cyclictest311ktimers/223:16:292
2790398992413,8cyclictest2890708-21sendmail00:00:012
2790398992413,7cyclictest0-21swapper/223:05:252
2790398992413,7cyclictest0-21swapper/219:55:292
2790398992413,7cyclictest0-21swapper/219:25:282
279039499243,5cyclictest131rcu_preempt19:35:121
279039499243,5cyclictest131rcu_preempt19:35:121
2790394992418,3cyclictest0-21swapper/119:15:231
2790394992416,6cyclictest2818656-21kworker/u8:1+events_unbound20:35:141
2790394992416,4cyclictest0-21swapper/121:10:001
2790394992415,5cyclictest0-21swapper/120:45:171
2790394992414,7cyclictest2887728-21tune2fs23:50:161
279039499241,17cyclictest2892409-21cron00:05:001
279038999244,4cyclictest131rcu_preempt23:35:110
2790389992418,3cyclictest0-21swapper/021:05:150
2790389992417,5cyclictest2890824-21ls00:00:010
2790389992417,4cyclictest13550irq/42-30be0000.ethernet20:45:000
2790389992417,3cyclictest0-21swapper/021:38:200
2790389992417,3cyclictest0-21swapper/021:38:190
2790389992417,3cyclictest0-21swapper/020:35:150
279038999241,5cyclictest2844910-21perl21:45:180
279038999241,21cyclictest0-21swapper/019:45:040
2790402992315,5cyclictest0-21swapper/321:25:153
2790402992315,5cyclictest0-21swapper/321:05:013
2790398992315,5cyclictest0-21swapper/200:30:262
2790398992315,5cyclictest0-21swapper/200:30:262
2790394992317,4cyclictest2802755-21kworker/u8:1+events_unbound19:46:231
2790394992317,3cyclictest0-21swapper/121:45:251
2790394992315,5cyclictest2819293-21grep20:30:181
2790394992312,7cyclictest2902451-21grep00:30:261
2790394992312,7cyclictest2902451-21grep00:30:251
279038999232,6cyclictest2808384-21cron20:00:010
2790389992317,3cyclictest0-21swapper/023:30:160
2790389992316,3cyclictest0-21swapper/023:46:550
2790389992314,7cyclictest2866252-21cat22:45:270
2790389992313,8cyclictest11-21ksoftirqd/000:15:140
279038999230,19cyclictest0-21swapper/023:50:110
279038999230,19cyclictest0-21swapper/019:31:140
2790402992216,3cyclictest0-21swapper/321:10:163
2790402992213,6cyclictest2857509-21cut22:20:243
2790398992212,7cyclictest204-21dbus-daemon00:38:322
279039499222,13cyclictest2869808-21unixbench_singl22:55:251
279039499221,4cyclictest131rcu_preempt22:25:131
2790394992212,5cyclictest0-21swapper/122:15:011
279039499221,11cyclictest0-21swapper/123:59:491
2790389992216,3cyclictest0-21swapper/023:20:250
2790389992216,3cyclictest0-21swapper/022:10:270
2790389992216,3cyclictest0-21swapper/020:20:160
2790389992214,6cyclictest121ktimers/020:10:170
2790389992213,6cyclictest2848526-21/usr/sbin/munin21:55:200
279038999221,19cyclictest0-21swapper/022:21:440
279038999221,19cyclictest0-21swapper/020:30:150
2790402992115,3cyclictest0-21swapper/323:49:593
2790402992114,3cyclictest0-21swapper/320:10:183
2790398992116,3cyclictest2881106-21latency23:30:192
2790398992114,4cyclictest311ktimers/219:13:272
2790398992114,4cyclictest2879163-21fschecks_count23:25:142
2790398992113,5cyclictest0-21swapper/220:45:002
279039499212,14cyclictest2806682-21cron19:55:011
2790394992115,3cyclictest0-21swapper/122:45:221
2790394992115,3cyclictest0-21swapper/121:50:211
2790394992113,5cyclictest0-21swapper/123:40:241
2790394992113,5cyclictest0-21swapper/123:40:241
279038999210,19cyclictest0-21swapper/000:31:220
279038999210,19cyclictest0-21swapper/000:31:210
2790402992015,3cyclictest2822811-21if_eth120:40:183
279039899202,14cyclictest2846137-21cron21:49:592
2790398992014,4cyclictest311ktimers/222:47:242
2790398992014,3cyclictest0-21swapper/223:50:152
2790398992014,3cyclictest0-21swapper/222:20:162
2790398992014,3cyclictest0-21swapper/220:55:212
2790398992011,6cyclictest2815851-21cut20:20:172
2790394992012,6cyclictest2815198-21kworker/u8:2+events_unbound20:26:331
2790398991913,3cyclictest2858886-21kernelversion22:25:202
2790398991911,5cyclictest0-21swapper/219:40:162
2790398991911,5cyclictest0-21swapper/219:40:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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