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2026-01-10 - 11:12

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 Sat Jan 10, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2831785996834,9cyclictest438-21cron23:00:001
2831785996729,10cyclictest231ktimers/123:15:131
2831785996637,4cyclictest2930018-21idleruntime-cro23:50:001
2831788995143,4cyclictest2865672-21munin-plugin-st20:45:012
2831788994943,4cyclictest28849302sleep221:40:102
2831788994937,8cyclictest311ktimers/220:05:122
2831779994739,4cyclictest2913951-21unixbench_multi23:00:250
2831791994434,5cyclictest0-21swapper/300:00:003
2831791994434,5cyclictest0-21swapper/300:00:003
2831791994433,7cyclictest2877841-21sh21:20:013
2831785994436,4cyclictest0-21swapper/119:45:011
2831791994336,4cyclictest2836324-21fschecks_count19:20:143
2831791994333,5cyclictest2867587-21idleruntime-cro20:50:013
2831779994335,4cyclictest2869277-21cron20:55:000
2831788994235,4cyclictest2869277-21cron20:55:002
2831785994232,7cyclictest2871002-21idleruntime-cro21:00:001
2831791994129,9cyclictest391ktimers/319:10:113
2831785994130,7cyclictest2860087-21grep20:25:241
2831791994030,6cyclictest0-21swapper/320:55:243
2831785994033,4cyclictest2831772-21cyclictest21:50:251
2831785994033,4cyclictest2831772-21cyclictest21:50:241
2831785994030,6cyclictest0-21swapper/123:40:011
2831791993931,4cyclictest0-21swapper/322:50:003
2831791993931,4cyclictest0-21swapper/322:10:013
2831791993830,4cyclictest0-21swapper/319:55:163
2831791993824,12cyclictest391ktimers/319:35:113
2831788993828,7cyclictest2849849-21sendmail20:00:012
2831785993831,4cyclictest0-21swapper/121:25:001
2831785993830,4cyclictest0-21swapper/122:20:161
2831779993828,6cyclictest2870522-21grep20:55:240
2831779993827,8cyclictest121ktimers/019:40:100
2831791993729,5cyclictest2844946-21fschecks_time19:45:153
2831791993723,11cyclictest391ktimers/320:30:133
2831788993729,4cyclictest0-21swapper/223:40:142
2831785993729,4cyclictest0-21swapper/100:30:151
2831785993726,7cyclictest2833831-21missed_timers19:15:011
2831779993730,4cyclictest2936429-21unixbench_singl00:05:240
2831779993729,6cyclictest2933423-21sendmail00:00:000
2831779993729,6cyclictest2933423-21sendmail00:00:000
2831788993611,7cyclictest32-21ksoftirqd/200:30:162
2831785993625,6cyclictest2922545-21grep23:25:241
2831785993625,6cyclictest0-21swapper/122:45:251
2831779993628,5cyclictest0-21swapper/022:00:000
2831779993627,6cyclictest2832126-21fschecks_time19:10:150
2831779993626,6cyclictest0-21swapper/022:55:260
2831788993524,7cyclictest2897073-21cron22:15:012
2831785993527,4cyclictest0-21swapper/122:35:001
2831779993526,6cyclictest0-21swapper/021:25:000
2831779993525,7cyclictest2834316-21sort19:15:040
2831779993525,7cyclictest121ktimers/019:45:120
2831791993426,4cyclictest0-21swapper/320:10:013
2831791993424,6cyclictest0-21swapper/319:20:013
2831791993423,7cyclictest0-21swapper/323:25:243
2831788993427,4cyclictest0-21swapper/221:20:232
2831785993427,4cyclictest2898792-21latency_hist22:20:001
2831785993419,11cyclictest231ktimers/122:25:111
2831779993424,6cyclictest2867139-21grep20:45:270
2831791993326,4cyclictest2928120-21latency_hist23:45:003
2831791993323,7cyclictest2856881-21sh20:20:003
2831791993323,6cyclictest0-21swapper/319:25:273
2831788993325,4cyclictest0-21swapper/221:35:152
2831785993324,4cyclictest0-21swapper/122:10:011
2831785993322,5cyclictest0-21swapper/120:15:241
2831779993325,4cyclictest0-21swapper/023:30:250
2831779993325,4cyclictest0-21swapper/020:10:000
2831779993321,8cyclictest2838942-21grep19:25:270
2831791993222,7cyclictest2889814-21sh21:55:003
2831791993222,7cyclictest2889814-21sh21:55:003
2831791993219,9cyclictest2847490-21grep19:50:263
2831788993224,4cyclictest0-21swapper/221:25:252
2831788993224,4cyclictest0-21swapper/221:05:152
2831788993224,4cyclictest0-21swapper/219:35:162
2831785993222,7cyclictest2847481-21grep19:50:251
2831779993225,4cyclictest2865662-21audit_send_reply20:45:010
2831779993224,5cyclictest0-21swapper/022:35:160
2831779993224,4cyclictest0-21swapper/019:55:200
2831779993211,6cyclictest0-21swapper/023:40:000
2831791993120,8cyclictest2851545-21cron20:05:013
2831788993123,4cyclictest0-21swapper/222:56:302
2831788993123,4cyclictest0-21swapper/221:11:022
2831785993125,3cyclictest0-21swapper/119:15:051
2831785993124,3cyclictest0-21swapper/122:40:241
2831785993124,3cyclictest0-21swapper/122:40:241
2831785993123,4cyclictest0-21swapper/121:35:251
2831785993123,4cyclictest0-21swapper/121:10:241
2831785993122,5cyclictest2853883-21fschecks_time20:10:151
2831785993122,5cyclictest0-21swapper/122:00:231
2831785993119,8cyclictest2941758-21grep00:20:241
2831779993124,4cyclictest0-21swapper/019:35:110
2831779993123,5cyclictest0-21swapper/022:45:250
2831779993122,6cyclictest0-21swapper/022:40:240
2831779993122,6cyclictest0-21swapper/022:40:240
2831779993121,6cyclictest0-21swapper/022:00:240
2831791993020,6cyclictest2868832-21grep20:50:243
2831788993017,9cyclictest2833150-21sshd19:11:572
2831785993021,4cyclictest0-21swapper/120:50:241
2831785993020,7cyclictest2895784-21grep22:10:141
2831779993023,3cyclictest0-21swapper/022:20:000
2831779993021,5cyclictest0-21swapper/022:35:000
2831779993020,6cyclictest0-21swapper/022:20:230
2831791992920,6cyclictest2884700-21basename21:40:003
2831791992920,6cyclictest0-21swapper/300:00:163
2831791992920,6cyclictest0-21swapper/300:00:153
2831788992923,3cyclictest0-21swapper/219:20:232
2831788992922,4cyclictest2897312-21apt-get22:15:112
2831788992922,4cyclictest2863946-21munin-plugin-st20:40:012
2831788992922,4cyclictest2857101-21apt-key20:20:012
2831788992922,3cyclictest0-21swapper/220:55:252
2831788992920,6cyclictest2907144-21unixbench_singl22:40:252
2831788992920,6cyclictest2907144-21unixbench_singl22:40:242
2831788992919,7cyclictest2860508-21sshd20:29:552
2831788992918,8cyclictest2945869-21apt-get00:35:122
2831788992917,9cyclictest2887785-21sshd21:46:102
2831788992917,9cyclictest2887785-21sshd21:46:092
2831788992916,10cyclictest2919226-21sshd23:16:332
2831788992915,11cyclictest2919775-21munin-node23:20:102
2831788992912,14cyclictest2936464-21sendmail-mta00:05:282
2831788992910,5cyclictest32-21ksoftirqd/220:30:232
2831788992910,15cyclictest2907956-21cut22:45:152
2831785992921,4cyclictest0-21swapper/120:45:161
2831785992919,7cyclictest2881661-21cut21:30:171
2831785992919,6cyclictest0-21swapper/120:30:261
2831785992918,6cyclictest0-21swapper/120:00:261
2831785992915,6cyclictest0-21swapper/100:15:251
2831785992911,14cyclictest231ktimers/100:35:211
2831779992921,4cyclictest0-21swapper/020:20:010
2831779992920,6cyclictest0-21swapper/023:15:000
283177999291,24cyclictest0-21swapper/000:00:120
283177999291,24cyclictest0-21swapper/000:00:110
2831791992820,5cyclictest0-21swapper/320:35:243
2831791992820,4cyclictest0-21swapper/321:10:003
2831791992819,6cyclictest0-21swapper/322:30:253
2831791992818,6cyclictest2920784-21grep23:20:243
2831788992821,4cyclictest2902453-21apt-get22:30:112
2831788992821,4cyclictest2893690-21apt-get22:05:112
2831788992821,3cyclictest0-21swapper/222:20:142
2831788992818,7cyclictest2850623-21/usr/sbin/munin20:00:222
2831788992815,10cyclictest2834807-21/usr/sbin/munin19:15:162
2831788992811,8cyclictest2839476-21sed19:30:012
283178599287,15cyclictest0-21swapper/123:21:341
2831785992821,3cyclictest0-21swapper/123:05:251
2831785992820,4cyclictest0-21swapper/120:05:261
2831785992819,6cyclictest2858817-21sh20:25:001
2831785992818,6cyclictest0-21swapper/123:45:001
2831779992819,6cyclictest2900948-21fschecks_time22:25:160
2831779992819,5cyclictest2861794-21grep20:30:260
2831791992719,4cyclictest0-21swapper/322:40:243
2831791992719,4cyclictest0-21swapper/322:40:243
2831788992721,3cyclictest2871813-21ntp_states21:00:212
2831788992720,4cyclictest2923190-21apt-get23:30:122
2831788992720,4cyclictest2900747-21apt-get22:25:112
2831788992720,4cyclictest2876365-21apt-get21:15:122
2831788992717,7cyclictest2925591-21/usr/sbin/munin23:35:212
2831788992717,7cyclictest2893367-21cron22:04:002
2831788992717,7cyclictest2846743-21/usr/sbin/munin19:50:172
2831788992717,7cyclictest2844399-21sshd19:43:552
2831788992716,8cyclictest2845944-21sshd19:46:552
2831788992716,7cyclictest2909505-21apt-get22:50:122
2831788992714,10cyclictest2866726-21/usr/sbin/munin20:45:232
2831785992718,6cyclictest2913090-21grep23:00:161
2831779992721,3cyclictest0-21swapper/000:25:120
2831779992720,4cyclictest2877848-21cat21:20:010
2831779992720,3cyclictest0-21swapper/019:35:010
2831779992718,5cyclictest2851149-21grep20:00:260
2831779992717,7cyclictest0-21swapper/022:10:140
2831779992716,7cyclictest204-21dbus-daemon21:31:060
2831791992617,6cyclictest2910988-21grep22:55:013
2831791992614,7cyclictest0-21swapper/321:00:253
2831788992620,4cyclictest2928534-21apt-get23:45:112
2831788992618,5cyclictest0-21swapper/220:20:242
2831788992618,4cyclictest2933425-21munin-plugin-st00:00:002
2831788992618,4cyclictest2933425-21munin-plugin-st00:00:002
2831788992617,7cyclictest2916339-21/usr/sbin/munin23:10:182
2831788992616,7cyclictest2854782-21users20:10:252
2831788992615,9cyclictest2921482-21/usr/sbin/munin23:25:252
2831788992615,8cyclictest2941936-21sshd00:21:552
2831788992615,8cyclictest2888866-21/usr/sbin/munin21:50:192
2831788992615,8cyclictest2888866-21/usr/sbin/munin21:50:192
2831788992614,9cyclictest2890395-21/usr/sbin/munin21:55:142
2831788992611,12cyclictest2939361-21/usr/sbin/munin00:15:202
2831788992611,11cyclictest2943732-21seq00:27:462
2831785992618,4cyclictest0-21swapper/119:45:241
2831785992617,5cyclictest0-21swapper/119:30:251
2831779992619,4cyclictest0-21swapper/021:05:240
2831779992618,5cyclictest0-21swapper/021:55:000
2831779992618,5cyclictest0-21swapper/021:55:000
2831779992617,6cyclictest2940965-21tune2fs00:20:160
2831779992612,7cyclictest2872310-21grep21:00:250
2831791992519,3cyclictest0-21swapper/323:05:193
2831791992518,4cyclictest2919527-21cron23:20:013
2831791992514,7cyclictest2905428-21sed22:35:253
2831791992513,8cyclictest2875681-21grep21:10:243
2831788992519,3cyclictest2933674-21apt-get00:00:112
2831788992519,3cyclictest2933674-21apt-get00:00:112
2831788992519,3cyclictest2930238-21apt-get23:50:112
2831788992519,3cyclictest2930238-21apt-get23:50:102
2831788992515,7cyclictest2905492-21sshd22:35:552
2831788992515,7cyclictest2881622-21diskstats21:30:152
2831785992519,3cyclictest0-21swapper/120:00:011
2831785992517,6cyclictest2869056-21kworker/u8:2+events_unbound21:05:081
2831779992520,3cyclictest0-21swapper/023:20:010
2831779992519,3cyclictest0-21swapper/020:10:220
2831779992518,3cyclictest2922961-21kthreadd23:30:000
2831779992515,7cyclictest2862991-21ntpq20:35:190
2831791992418,3cyclictest0-21swapper/320:45:013
2831791992418,3cyclictest0-21swapper/300:30:233
2831791992417,4cyclictest0-21swapper/320:25:243
2831791992417,4cyclictest0-21swapper/300:35:233
2831791992416,4cyclictest0-21swapper/323:10:153
2831788992415,6cyclictest2914753-21df_inode23:05:142
2831788992414,7cyclictest2938204-21sshd00:10:552
2831785992418,3cyclictest0-21swapper/121:25:241
2831785992418,3cyclictest0-21swapper/119:35:211
2831785992418,3cyclictest0-21swapper/119:25:171
2831785992416,4cyclictest0-21swapper/100:10:241
2831785992414,6cyclictest0-21swapper/119:20:141
2831785992413,6cyclictest0-21swapper/121:55:241
2831779992418,3cyclictest0-21swapper/023:20:220
2831779992416,5cyclictest0-21swapper/020:20:150
2831779992415,6cyclictest2940416-21wc00:20:000
2831779992415,5cyclictest0-21swapper/022:09:150
283177999241,19cyclictest0-21swapper/023:42:470
283177999241,19cyclictest0-21swapper/021:48:110
283177999241,19cyclictest0-21swapper/021:48:110
283177999241,19cyclictest0-21swapper/021:43:310
283177999241,19cyclictest0-21swapper/020:27:520
283177999241,19cyclictest0-21swapper/019:53:140
283177999241,19cyclictest0-21swapper/000:37:230
283177999240,20cyclictest0-21swapper/021:25:570
2831791992317,3cyclictest0-21swapper/323:30:163
2831791992317,3cyclictest0-21swapper/322:00:183
2831791992317,3cyclictest0-21swapper/300:20:193
2831791992317,3cyclictest0-21swapper/300:15:223
2831791992316,4cyclictest0-21swapper/323:45:253
2831791992316,4cyclictest0-21swapper/322:11:223
2831791992315,5cyclictest0-21swapper/323:50:233
2831791992315,5cyclictest0-21swapper/323:50:233
2831791992315,5cyclictest0-21swapper/321:30:163
2831791992315,5cyclictest0-21swapper/321:20:143
2831791992315,4cyclictest0-21swapper/319:30:163
2831791992314,6cyclictest0-21swapper/323:40:003
2831791992313,7cyclictest2897514-21tune2fs22:15:153
2831791992313,7cyclictest2879909-21df_inode21:25:133
2831791992313,6cyclictest2943511-21grep00:25:233
2831791992312,8cyclictest2886638-21apt-get21:45:103
2831791992312,8cyclictest2886638-21apt-get21:45:093
2831785992317,3cyclictest0-21swapper/120:35:221
2831785992313,7cyclictest2942678-21tune2fs00:25:141
2831785992313,5cyclictest0-21swapper/122:35:251
2831785992312,8cyclictest204-21dbus-daemon22:51:291
2831779992318,2cyclictest0-21swapper/021:35:210
2831779992317,3cyclictest0-21swapper/022:50:210
283177999231,6cyclictest204-21dbus-daemon19:20:420
2831779992313,4cyclictest131rcu_preempt21:13:230
2831791992215,5cyclictest391ktimers/319:40:183
2831791992215,5cyclictest0-21swapper/321:55:153
2831791992214,5cyclictest2886407-21apt21:45:003
2831785992216,3cyclictest0-21swapper/100:05:151
2831785992216,3cyclictest0-21swapper/100:00:241
2831785992216,3cyclictest0-21swapper/100:00:241
2831785992213,5cyclictest0-21swapper/123:55:241
2831785992213,5cyclictest0-21swapper/123:55:231
2831785992210,9cyclictest2872202-21cat21:00:241
2831779992217,3cyclictest13550irq/42-30be0000.ethernet23:50:140
2831779992217,3cyclictest13550irq/42-30be0000.ethernet23:50:140
2831779992215,3cyclictest0-21swapper/023:45:140
2831779992215,3cyclictest0-21swapper/023:05:380
283177999220,18cyclictest0-21swapper/000:13:160
283179199219,9cyclictest2902401-21wc22:30:013
2831791992115,3cyclictest0-21swapper/320:15:003
2831791992115,3cyclictest0-21swapper/300:11:523
2831791992114,4cyclictest2913075-21fschecks_count23:00:163
2831791992112,6cyclictest2911439-21tune2fs22:55:153
2831785992114,3cyclictest2930396-21fschecks_count23:50:141
2831785992114,3cyclictest2930396-21fschecks_count23:50:141
2831785992113,5cyclictest2877845-21sendmail21:20:001
2831785992112,6cyclictest2917226-21ls23:10:241
283177999211,18cyclictest0-21swapper/000:30:190
2831791992012,5cyclictest0-21swapper/320:20:183
2831785992011,6cyclictest2923419-21tune2fs23:30:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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