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2026-01-23 - 10:59
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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 Fri Jan 23, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3633073995442,8cyclictest3730447-21grep23:45:252
3633066995223,23cyclictest0-21swapper/019:10:250
3633070994833,12cyclictest231ktimers/123:30:101
3633070994833,12cyclictest231ktimers/123:30:101
363306699481,18cyclictest3725755-21munin-node23:35:100
363306699481,18cyclictest3725755-21munin-node23:35:100
363306699472,17cyclictest3697759-21taskset22:15:110
3633066994712,6cyclictest0-21swapper/023:30:230
3633066994712,6cyclictest0-21swapper/023:30:230
3633078994617,26cyclictest3713676-21sort23:00:013
3633066994632,10cyclictest438-21cron21:20:010
3633066994619,22cyclictest13550irq/42-30be0000.ethernet22:10:010
3633078994434,7cyclictest3707801-21grep22:40:233
3633066994418,21cyclictest0-21swapper/022:40:010
3633066994413,6cyclictest0-21swapper/020:20:000
3633066994413,6cyclictest0-21swapper/020:20:000
3633066994412,6cyclictest3649536-21/usr/sbin/munin19:55:150
3633066994412,6cyclictest0-21swapper/020:25:000
3633066994412,6cyclictest0-21swapper/020:25:000
3633078994335,4cyclictest3720398-21cut23:20:003
3633078994326,13cyclictest0-21swapper/321:20:013
363307899432,10cyclictest3741387-21apt-get00:20:153
363307899432,10cyclictest3741387-21apt-get00:20:153
363306699433,15cyclictest0-21swapper/019:23:110
3633066994312,6cyclictest3711656-21http22:55:010
3633078994229,10cyclictest391ktimers/321:25:143
363307899421,9cyclictest3731773-21/usr/sbin/munin23:50:223
363307899421,9cyclictest3667618-21/usr/sbin/munin20:45:263
363307899421,8cyclictest3652855-21/usr/sbin/munin20:05:273
363307399421,5cyclictest131rcu_preempt19:15:122
3633070994234,5cyclictest3700695-21unixbench_multi22:20:241
3633066994228,9cyclictest3716502-21grep23:05:250
3633066994213,26cyclictest0-21swapper/000:15:000
363307899411,9cyclictest3729510-21df_inode23:45:133
363307899411,9cyclictest3715099-21cron23:03:003
363307899411,9cyclictest3693694-21sshd22:02:383
363307899411,8cyclictest3704093-21/usr/sbin/munin22:30:253
3633078994111,25cyclictest3668403-21fschecks_count20:50:143
3633070994131,6cyclictest3706508-21munin-plugin-st22:40:011
3633070994129,8cyclictest3745839-21grep00:30:291
3633066994134,4cyclictest3647487-21sh19:50:000
3633066994117,3cyclictest0-21swapper/020:05:000
363307899403,9cyclictest3675446-21/usr/sbin/munin21:10:183
363307899403,3cyclictest3687866-21ntp_states21:45:223
3633078994030,7cyclictest3636536-21unixbench_multi19:15:253
363307899401,9cyclictest3710496-21/usr/sbin/munin22:50:173
363307899401,8cyclictest3665320-21/usr/sbin/munin20:40:223
3633078994016,18cyclictest0-21swapper/319:15:013
3633078994013,24cyclictest0-21swapper/300:00:193
3633073994030,6cyclictest3684870-21grep21:35:262
3633066994029,7cyclictest3740691-21grep00:15:260
3633066994029,7cyclictest3740691-21grep00:15:260
3633066994015,3cyclictest3671167-21sh20:57:010
363307899399,27cyclictest3670679-21which20:55:243
363307899393,4cyclictest3697433-21cron22:14:003
363307899393,10cyclictest3691336-21ps21:55:233
363307899392,5cyclictest3658447-21memory20:20:213
363307899392,5cyclictest3658447-21memory20:20:213
363307899392,3cyclictest3649980-21ntp_offset19:55:213
363307899391,9cyclictest3637392-21/usr/sbin/munin19:20:163
363307899391,8cyclictest3709298-21/usr/sbin/munin22:45:253
363307899391,7cyclictest3673516-21forks21:05:153
363307899391,7cyclictest3651695-21ntp_kernel_pll_20:00:213
363307899391,6cyclictest3747165-21missed_timers00:35:233
363307899391,6cyclictest3656830-21/usr/sbin/munin20:15:223
363307899391,6cyclictest3656830-21/usr/sbin/munin20:15:223
363307899391,5cyclictest3716127-21/usr/sbin/munin23:05:223
363307899391,11cyclictest3646135-21diskstats19:45:153
3633073993926,10cyclictest311ktimers/222:20:132
3633070993931,4cyclictest0-21swapper/121:50:251
3633066993931,3cyclictest0-21swapper/023:12:490
363306699392,13cyclictest3730865-21cron23:50:000
3633066993915,3cyclictest0-21swapper/000:00:260
363307899387,26cyclictest0-21swapper/320:40:013
363307899383,6cyclictest3662676-21sshd20:32:383
363307899382,5cyclictest3633060-21cyclictest20:25:123
363307899381,9cyclictest3721455-21cat23:20:243
363307899381,8cyclictest3705151-21/usr/sbin/munin22:35:143
3633078993816,18cyclictest0-21swapper/323:35:253
3633078993816,18cyclictest0-21swapper/323:35:253
363307899381,4cyclictest3728149-21/usr/sbin/munin23:40:223
363307899381,4cyclictest3728149-21/usr/sbin/munin23:40:223
363307899381,4cyclictest3722651-21if_eth023:25:183
363307899381,4cyclictest3702064-21memory22:25:193
3633078993814,20cyclictest0-21swapper/323:55:233
3633078993811,24cyclictest0-21swapper/322:20:183
363307899381,11cyclictest3736692-21meminfo00:05:193
363307899381,11cyclictest3717444-21fw_packets23:10:153
363307899381,11cyclictest3679563-21unixbench_singl21:20:283
363307899381,11cyclictest3642941-21ntp_states19:35:213
363307899381,11cyclictest3642941-21ntp_states19:35:213
363307399389,9cyclictest131rcu_preempt00:05:122
3633073993834,2cyclictest0-21swapper/200:10:112
3633073993830,3cyclictest0-21swapper/221:00:012
3633073993829,5cyclictest3681705-21cron21:30:012
363307399382,5cyclictest131rcu_preempt00:00:142
3633066993829,7cyclictest3656028-21cron20:15:000
363306699381,3cyclictest3681713-21apt-get21:30:040
3633078993728,5cyclictest0-21swapper/319:55:003
363307899372,4cyclictest3739022-21/usr/sbin/munin00:10:253
363307899372,3cyclictest3644438-21/usr/sbin/munin19:40:153
363307899371,5cyclictest3640319-21sshd19:28:393
363307899371,4cyclictest3745571-21switchtime00:30:283
363307899371,4cyclictest3743271-21/usr/sbin/munin00:25:163
363307899371,4cyclictest3724046-21/usr/sbin/munin23:30:163
363307899371,4cyclictest3724046-21/usr/sbin/munin23:30:163
363307899371,4cyclictest3689448-21memory21:50:203
363307899371,4cyclictest3682155-21/usr/sbin/munin21:30:153
363307899371,4cyclictest3655137-21ntp_states20:10:243
363307899371,11cyclictest3686154-21ntp_states21:40:213
363307899371,11cyclictest3641848-21chrt19:31:383
363307899371,11cyclictest3641848-21chrt19:31:383
363307899371,10cyclictest3739891-21/usr/sbin/munin00:15:173
363307899371,10cyclictest3739891-21/usr/sbin/munin00:15:173
3633073993731,4cyclictest3661142-21kworker/u8:2+events_unbound20:42:272
3633070993729,4cyclictest0-21swapper/119:20:001
3633070993727,5cyclictest0-21swapper/119:55:161
3633066993727,7cyclictest3637026-21sendmail19:20:000
3633066993714,5cyclictest121ktimers/021:40:160
3633066993711,8cyclictest3696607-21ntpq22:10:250
363307899361,9cyclictest3698206-21memory22:15:193
363307899361,9cyclictest3684548-21/usr/sbin/munin21:35:243
363307899361,5cyclictest3694349-21cut22:05:183
3633073993626,6cyclictest0-21swapper/200:30:292
3633070993628,5cyclictest3697112-21unixbench_singl22:10:301
3633070993626,7cyclictest3711857-21latency_hist22:55:011
3633070993625,7cyclictest0-21swapper/122:20:001
3633066993626,7cyclictest3701171-21auditctl22:25:010
3633066993624,9cyclictest3713118-21grep22:55:240
363306699362,12cyclictest3681707-21cron21:30:010
363306699362,12cyclictest3666304-21cron20:45:010
363306699361,3cyclictest3715277-21latency_hist23:05:010
3633066993613,5cyclictest121ktimers/022:00:140
363307899351,6cyclictest3671676-21/usr/sbin/munin21:00:143
3633073993529,3cyclictest3695821-21apt-key22:10:012
363307399351,5cyclictest131rcu_preempt22:30:132
3633070993525,4cyclictest0-21swapper/123:10:151
3633066993525,5cyclictest0-21swapper/019:30:250
3633066993525,5cyclictest0-21swapper/019:30:250
3633066993523,7cyclictest0-21swapper/023:55:250
3633066993514,3cyclictest0-21swapper/019:27:160
3633073993428,4cyclictest3625716-21kworker/u8:2+events_unbound19:22:172
3633073993423,8cyclictest3645781-21auditctl19:45:002
3633070993427,4cyclictest3748198-21idleruntime-cro00:40:001
3633070993426,5cyclictest3730449-21unixbench_singl23:45:251
3633070993425,5cyclictest3645783-21apt19:45:001
3633070993423,8cyclictest3736192-21latency_hist00:05:011
3633066993414,3cyclictest3690705-21apt21:55:120
3633073993321,8cyclictest3748180-21sh00:40:002
363307399331,6cyclictest131rcu_preempt23:20:122
3633070993325,4cyclictest0-21swapper/123:15:251
3633070993323,6cyclictest0-21swapper/123:05:001
3633070993323,6cyclictest0-21swapper/119:50:241
3633070993319,11cyclictest231ktimers/123:20:121
3633066993325,4cyclictest0-21swapper/019:40:000
3633066993325,4cyclictest0-21swapper/019:40:000
3633066993323,6cyclictest0-21swapper/020:35:270
3633066993312,5cyclictest121ktimers/000:05:120
363306699330,19cyclictest0-21swapper/020:07:410
363307399322,5cyclictest131rcu_preempt22:45:132
3633073993222,6cyclictest0-21swapper/222:25:262
3633073993221,7cyclictest3644065-21apt-key19:40:012
3633073993221,7cyclictest3644065-21apt-key19:40:012
3633070993226,4cyclictest3657567-21kworker/u8:2+events_unbound20:22:271
3633070993226,4cyclictest3657567-21kworker/u8:2+events_unbound20:22:271
3633070993223,5cyclictest3702670-21grep22:25:261
3633070993222,6cyclictest0-21swapper/121:20:011
3633066993225,3cyclictest0-21swapper/020:55:010
3633066993222,6cyclictest0-21swapper/022:40:230
3633073993124,3cyclictest0-21swapper/221:15:282
3633073993123,6cyclictest3737366-21kworker/u8:2+events_unbound00:18:062
3633073993123,6cyclictest3737366-21kworker/u8:2+events_unbound00:18:062
3633073993122,4cyclictest0-21swapper/222:10:212
3633070993123,4cyclictest0-21swapper/123:40:241
3633070993123,4cyclictest0-21swapper/123:40:241
3633070993122,5cyclictest3713558-21idleruntime-cro23:00:001
3633070993122,4cyclictest0-21swapper/120:05:261
363306699312,6cyclictest3746697-21apt-get00:35:050
3633066993123,4cyclictest0-21swapper/020:30:260
3633066993121,6cyclictest3690034-21grep21:50:260
3633073993023,3cyclictest0-21swapper/223:40:242
3633073993023,3cyclictest0-21swapper/223:40:242
3633073993021,7cyclictest3696041-21kworker/u8:3+events_unbound22:17:422
363307399301,6cyclictest0-21swapper/220:20:152
363307399301,6cyclictest0-21swapper/220:20:152
363307099301,25cyclictest1-21systemd23:07:481
3633073992923,3cyclictest0-21swapper/223:55:002
3633073992920,7cyclictest3678036-21kworker/u8:0+events_unbound21:32:412
3633070992921,6cyclictest3708219-21sh22:45:011
3633070992921,4cyclictest0-21swapper/119:45:161
3633070992919,6cyclictest3727242-21cat23:40:001
3633070992919,6cyclictest3727242-21cat23:40:001
3633070992919,5cyclictest0-21swapper/120:45:171
3633066992915,3cyclictest0-21swapper/023:16:280
3633066992913,3cyclictest0-21swapper/022:27:070
363306699291,23cyclictest3672669-21grep21:00:270
363307399286,9cyclictest32-21ksoftirqd/219:10:242
3633073992822,4cyclictest3640216-21kworker/u8:0+events_unbound20:17:272
3633073992822,4cyclictest3640216-21kworker/u8:0+events_unbound20:17:272
3633073992821,5cyclictest3625716-21kworker/u8:2+events_unbound19:32:202
3633073992821,5cyclictest3625716-21kworker/u8:2+events_unbound19:32:202
3633073992820,6cyclictest3678036-21kworker/u8:0+events_unbound21:20:292
3633073992820,4cyclictest0-21swapper/223:00:282
3633073992812,4cyclictest3640216-21kworker/u8:0+events_unbound20:07:112
3633070992821,4cyclictest3744565-21latency_hist00:30:001
3633070992820,4cyclictest0-21swapper/119:20:261
3633070992818,7cyclictest3690861-21tune2fs21:55:171
3633070992816,8cyclictest204-21dbus-daemon00:23:041
3633070992816,8cyclictest204-21dbus-daemon00:23:041
3633066992822,3cyclictest0-21swapper/021:10:010
3633073992721,4cyclictest3640216-21kworker/u8:0+events_unbound19:53:422
3633073992720,5cyclictest3721958-21kworker/u8:1+events_unbound23:25:182
3633073992720,4cyclictest3669726-21cron20:55:012
3633073992719,4cyclictest0-21swapper/222:57:462
363307399271,12cyclictest0-21swapper/200:20:222
363307399271,12cyclictest0-21swapper/200:20:222
3633070992721,3cyclictest0-21swapper/122:30:191
3633070992720,5cyclictest3666149-21kworker/u8:0+events_unbound21:05:151
3633070992719,5cyclictest0-21swapper/121:00:011
3633070992719,5cyclictest0-21swapper/120:10:281
3633070992719,5cyclictest0-21swapper/119:25:251
3633070992718,6cyclictest3679571-21grep21:20:281
3633070992717,5cyclictest3660741-21head20:25:271
3633066992721,3cyclictest0-21swapper/023:55:000
3633066992721,3cyclictest0-21swapper/023:25:260
3633066992721,3cyclictest0-21swapper/023:20:220
3633073992621,3cyclictest3662860-21kworker/u8:0+events_unbound20:36:422
3633073992619,5cyclictest3638502-21kworker/u8:3+events_unbound19:27:202
3633073992618,6cyclictest3728735-21kworker/u8:1+events_unbound23:55:202
3633073992618,6cyclictest3709026-21kworker/u8:2+events_unbound22:52:582
363307399261,12cyclictest0-21swapper/221:45:142
363307399260,13cyclictest0-21swapper/221:51:382
3633070992619,4cyclictest231ktimers/121:36:441
3633070992619,3cyclictest0-21swapper/119:15:011
3633070992618,6cyclictest3721958-21kworker/u8:1+events_unbound23:25:201
3633070992618,5cyclictest0-21swapper/121:45:011
3633070992617,6cyclictest3657157-21sed20:15:261
3633070992617,6cyclictest3657157-21sed20:15:261
3633070992614,7cyclictest0-21swapper/121:00:271
363307099260,8cyclictest3651832-21gzip20:00:241
3633066992619,4cyclictest3688338-21head21:45:260
3633066992616,6cyclictest0-21swapper/022:45:260
3633066992616,6cyclictest0-21swapper/000:20:270
3633066992616,6cyclictest0-21swapper/000:20:270
363307399256,4cyclictest131rcu_preempt20:05:012
3633073992521,2cyclictest3711502-21kworker/u8:1+events_unbound23:06:412
3633073992520,3cyclictest53-21kcompactd022:00:012
3633073992519,3cyclictest3744564-21kthreadd00:30:002
3633073992518,5cyclictest3706305-21kworker/u8:0+events_unbound22:40:422
363307399251,21cyclictest3674505-21seq21:05:532
363307099259,4cyclictest221rcuc/119:35:261
363307099259,4cyclictest221rcuc/119:35:261
3633070992519,3cyclictest0-21swapper/121:30:171
3633070992518,4cyclictest0-21swapper/121:30:011
3633070992518,3cyclictest0-21swapper/100:15:231
3633070992518,3cyclictest0-21swapper/100:15:231
3633070992517,4cyclictest0-21swapper/120:40:281
3633070992516,6cyclictest3694699-21grep22:05:231
3633070992516,5cyclictest3739002-21grep00:10:251
3633070992515,6cyclictest0-21swapper/120:40:001
3633066992518,5cyclictest0-21swapper/020:30:000
3633066992518,4cyclictest0-21swapper/019:50:240
3633066992517,5cyclictest0-21swapper/021:35:260
3633066992517,4cyclictest0-21swapper/020:50:010
3633066992514,9cyclictest3678533-21/usr/sbin/munin21:20:180
3633073992418,4cyclictest3647408-21kworker/u8:2+events_unbound19:57:482
3633073992415,6cyclictest0-21swapper/219:50:002
3633070992418,3cyclictest0-21swapper/123:50:171
3633070992416,5cyclictest231ktimers/100:05:551
3633070992416,4cyclictest0-21swapper/120:50:231
3633070992415,6cyclictest0-21swapper/100:00:001
3633070992415,5cyclictest0-21swapper/121:12:291
363307099240,5cyclictest131rcu_preempt22:45:131
3633066992416,4cyclictest0-21swapper/021:10:260
3633073992318,2cyclictest0-21swapper/223:30:212
3633073992318,2cyclictest0-21swapper/223:30:212
3633073992317,3cyclictest0-21swapper/223:35:222
3633073992317,3cyclictest0-21swapper/223:35:222
3633073992316,5cyclictest3666149-21kworker/u8:0+events_unbound21:03:522
3633073992316,4cyclictest3719932-21tail23:15:252
3633073992312,7cyclictest3655411-21/usr/sbin/munin20:10:272
3633070992316,5cyclictest3691994-21kworker/u8:1+events_unbound22:00:211
363306699231,5cyclictest0-21swapper/000:25:210
3633066992314,5cyclictest3727684-21tune2fs23:40:150
3633066992314,5cyclictest3727684-21tune2fs23:40:150
363306699230,19cyclictest0-21swapper/022:30:580
363306699230,19cyclictest0-21swapper/000:33:030
3633073992216,4cyclictest3676217-21kworker/u8:2+events_unbound21:11:022
3633073992215,5cyclictest3655648-21kworker/u8:1+events_unbound20:26:022
3633073992214,4cyclictest3686475-21timerandwakeup21:40:252
363307099222,3cyclictest131rcu_preempt20:30:251
3633070992215,5cyclictest231ktimers/119:30:261
3633070992215,5cyclictest231ktimers/119:30:261
3633066992215,3cyclictest0-21swapper/019:40:390
3633073992115,3cyclictest0-21swapper/220:45:192
3633073992115,3cyclictest0-21swapper/220:30:192
3633070992114,3cyclictest0-21swapper/121:45:231
363307399209,8cyclictest1-21systemd23:12:492
363307399203,5cyclictest0-21swapper/222:00:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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