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2026-05-12 - 16:42

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 Tue May 12, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2644678996958,8cyclictest280-21systemd-journal12:39:591
2644678996156,4cyclictest2741074-21kworker/u8:0+flush-8:009:11:101
2644678996156,4cyclictest2741074-21kworker/u8:0+flush-8:009:11:101
2644674995847,9cyclictest2796386-21diskstats09:40:570
2644678995752,4cyclictest2830627-21kworker/u8:1+flush-8:010:36:091
2644678995750,5cyclictest2796483-21kworker/u8:0+flush-8:010:01:081
2644678995551,3cyclictest2711540-21kworker/u8:2+flush-8:008:51:081
2644674995448,4cyclictest2830627-21kworker/u8:1+flush-8:010:51:050
2644674995448,4cyclictest2830627-21kworker/u8:1+flush-8:010:51:040
2644678995346,5cyclictest2929879-21kworker/u8:0+flush-8:011:56:051
2644674995348,4cyclictest2666305-21kworker/u8:1+events_unbound08:21:100
2644674995347,4cyclictest2855655-21kworker/u8:2+events_unbound10:41:050
2644681995241,8cyclictest2691540-21cp07:55:012
2644678995244,5cyclictest2666282-21latency_hist07:30:021
2644674995246,5cyclictest2746239-21kworker/u8:3+flush-8:011:26:060
2644674995245,5cyclictest2675886-21kworker/u8:0+flush-8:008:01:050
27677992510,9sleep375-21kworker/3:1+mm_percpu_wq09:11:013
27677992510,9sleep375-21kworker/3:1+mm_percpu_wq09:11:013
2644678995140,8cyclictest2675868-21anacron07:36:171
2644674995146,4cyclictest2711540-21kworker/u8:2+flush-8:008:46:120
2644674995144,5cyclictest2786111-21kworker/u8:4+flush-8:009:31:040
2644674995044,4cyclictest2935044-21kworker/u8:2+flush-8:012:11:100
2644678994945,3cyclictest2830627-21kworker/u8:1+events_unbound10:31:041
2644678994942,5cyclictest2721564-21apt-get08:25:501
2644674994944,4cyclictest2935044-21kworker/u8:2+events_unbound12:21:080
2644674994944,3cyclictest2711540-21kworker/u8:2+flush-8:008:51:100
2644674994943,4cyclictest2935044-21kworker/u8:2+flush-8:012:36:100
2644674994942,5cyclictest280-21systemd-journal11:16:090
264467499491,36cyclictest2885362-21true11:10:010
2644678994844,3cyclictest2746239-21kworker/u8:3+flush-8:009:46:091
2644674994843,3cyclictest2899904-21kworker/u8:1+events_unbound12:30:000
2644674994842,4cyclictest2746239-21kworker/u8:3+flush-8:011:36:090
2644678994741,4cyclictest2666305-21kworker/u8:1+events_unbound07:50:571
2644674994742,3cyclictest2899904-21kworker/u8:1+flush-8:011:46:120
2644674994740,5cyclictest2814695-21ntpq09:56:050
2644674994738,7cyclictest2845248-21apt-get10:30:000
2644678994641,4cyclictest2830627-21kworker/u8:1+flush-8:011:16:071
2644678994641,4cyclictest2746239-21kworker/u8:3+flush-8:009:05:571
2644678994641,4cyclictest2711540-21kworker/u8:2+flush-8:008:45:571
2644678994641,3cyclictest2766101-21kworker/u8:2+events_unbound09:21:041
2644678994638,6cyclictest280-21systemd-journal10:20:001
2644678994637,7cyclictest2879528-21ntpq11:01:051
2644678994636,7cyclictest2644502-21latency_hist07:10:011
2644674994640,5cyclictest2830627-21kworker/u8:1+flush-8:010:16:080
2644674994640,4cyclictest2796483-21kworker/u8:0+flush-8:010:06:010
2644674994639,5cyclictest2935044-21kworker/u8:2+flush-8:012:01:100
2644674994639,5cyclictest2815916-21apt-get10:00:530
2644681994536,6cyclictest280-21systemd-journal12:20:002
2644678994540,3cyclictest1814106-21kworker/u8:0+flush-8:007:11:071
2644678994540,3cyclictest1814106-21kworker/u8:0+flush-8:007:11:071
2644678994539,5cyclictest2746239-21kworker/u8:3+flush-8:011:26:081
2644678994539,4cyclictest2675886-21kworker/u8:0+flush-8:008:00:551
2644674994540,4cyclictest2666305-21kworker/u8:1+events_unbound08:11:050
2644678994439,4cyclictest2666305-21kworker/u8:1+flush-8:008:11:071
2644678994439,3cyclictest2675886-21kworker/u8:0+events_unbound07:56:021
2644678994435,7cyclictest280-21systemd-journal12:15:001
2644674994439,4cyclictest2741074-21kworker/u8:0+events_unbound09:16:110
2644678994336,5cyclictest280-21systemd-journal10:42:171
2644674994339,3cyclictest2929879-21kworker/u8:0+events_unbound12:00:000
2644674994338,4cyclictest2741074-21kworker/u8:0+events_unbound09:06:130
2644674994338,3cyclictest2675886-21kworker/u8:0+events_unbound08:31:010
2644674994337,4cyclictest2711540-21kworker/u8:2+flush-8:008:41:110
2644674994337,4cyclictest2651794-21apt-get07:15:530
2644674994336,5cyclictest2830627-21kworker/u8:1+flush-8:010:46:110
2644674994336,5cyclictest2830627-21kworker/u8:1+flush-8:010:46:110
2644678994238,3cyclictest2746239-21kworker/u8:3+flush-8:009:51:121
2644678994238,3cyclictest2741074-21kworker/u8:0+flush-8:009:01:111
2644678994237,4cyclictest2855655-21kworker/u8:2+flush-8:010:46:011
2644678994237,4cyclictest2855655-21kworker/u8:2+flush-8:010:46:011
2644678994233,7cyclictest2845251-21latency_hist10:30:001
2644678994233,6cyclictest2875455-21latency_hist11:00:011
2644674994238,3cyclictest2746239-21kworker/u8:3+events_unbound11:50:550
2644674994237,3cyclictest2666305-21kworker/u8:1+events_unbound07:45:560
2644674994236,5cyclictest2929879-21kworker/u8:0+flush-8:012:06:050
2644674994236,5cyclictest2894912-21kworker/u8:2+flush-8:011:31:060
2644674994235,5cyclictest2894912-21kworker/u8:2+flush-8:011:21:060
2644674994235,5cyclictest2830627-21kworker/u8:1+flush-8:011:11:080
2644681994133,6cyclictest2711071-21apt-get08:15:002
2644678994136,4cyclictest2786111-21kworker/u8:4+events_unbound09:31:001
2644678994133,6cyclictest2681181-21latency_hist07:45:011
2644674994136,3cyclictest2666305-21kworker/u8:1+events_unbound07:56:050
2644678994034,4cyclictest2885661-21apt-get11:10:531
2644678994034,4cyclictest2746239-21kworker/u8:3+flush-8:010:06:101
2644674994034,4cyclictest2830627-21kworker/u8:1+events_unbound10:55:560
2644681993929,8cyclictest2900510-21apt-get11:25:532
2644678993934,4cyclictest2929879-21kworker/u8:0+events_unbound12:06:141
2644674993935,3cyclictest2624910-21kworker/u8:3+events_unbound07:21:100
2644674993934,3cyclictest2786111-21kworker/u8:4+events_unbound09:35:570
2644674993933,5cyclictest2766101-21kworker/u8:2+flush-8:009:21:070
2644678993834,2cyclictest2915038-21ls11:39:591
2644678993833,4cyclictest2624910-21kworker/u8:3+flush-8:007:16:131
2644674993832,5cyclictest2746239-21kworker/u8:3+flush-8:009:51:060
2644674993832,4cyclictest2624910-21kworker/u8:3+flush-8:007:26:080
2644674993828,7cyclictest2839424-21ntpq10:21:050
2644678993733,3cyclictest2746239-21kworker/u8:3+flush-8:011:31:131
2644674993733,3cyclictest2666305-21kworker/u8:1+events_unbound08:15:530
2644674993731,4cyclictest2644525-21kworker/u8:2+events_unbound07:36:090
2644678993631,3cyclictest2751520-21apt-get08:55:531
2644678993627,6cyclictest2924926-21latency_hist11:50:011
2644674993629,5cyclictest2731519-21grep08:35:520
2644674993624,4cyclictest2624910-21kworker/u8:3+events_unbound07:30:580
2644678993531,3cyclictest2894912-21kworker/u8:2+events_unbound11:21:091
2644678993530,3cyclictest280-21systemd-journal08:43:171
2644678993523,4cyclictest2964745-21apt-get12:30:001
2644674993530,4cyclictest2935044-21kworker/u8:2+events_unbound12:15:540
2644674993530,4cyclictest2899904-21kworker/u8:1+events_unbound12:31:020
2644674993530,4cyclictest2899904-21kworker/u8:1+events_unbound12:31:010
2644674993530,3cyclictest2746239-21kworker/u8:3+flush-8:009:46:110
2644674993529,4cyclictest2899904-21kworker/u8:1+events_unbound11:41:140
2644678993429,4cyclictest2675886-21kworker/u8:0+flush-8:008:31:081
2644678993428,4cyclictest2746239-21kworker/u8:3+events_unbound10:11:071
2644678993427,5cyclictest2701551-21apt-get08:05:531
2644674993430,3cyclictest2746239-21kworker/u8:3+flush-8:009:26:020
2644674993429,4cyclictest2766101-21kworker/u8:2+flush-8:009:11:120
2644674993429,4cyclictest2766101-21kworker/u8:2+flush-8:009:11:120
2644674993429,4cyclictest2746239-21kworker/u8:3+events_unbound10:30:170
2644674993429,3cyclictest2675886-21kworker/u8:0+events_unbound08:26:100
2644681993323,7cyclictest2964935-21cat12:29:592
2644678993329,3cyclictest2746239-21kworker/u8:3+events_unbound11:41:041
2644678993327,4cyclictest2666305-21kworker/u8:1+events_unbound07:46:061
2644678993326,5cyclictest2656749-21apt-get07:20:521
2644678993325,6cyclictest2870296-21apt-get10:55:001
2644678993325,6cyclictest2870296-21apt-get10:55:001
2644674993329,3cyclictest2796483-21kworker/u8:0+flush-8:010:10:550
2644674993328,4cyclictest2666305-21kworker/u8:1+events_unbound07:41:080
2644681993222,8cyclictest2750974-21awk08:55:002
2644678993226,5cyclictest2746239-21kworker/u8:3+flush-8:009:36:071
2644678993223,7cyclictest2775054-21ntpq09:16:061
2644674993226,4cyclictest2666305-21kworker/u8:1+flush-8:007:51:120
26444382324,9sleep20-21swapper/207:09:232
2644681993122,7cyclictest401-21dbus-daemon09:45:012
2644678993127,3cyclictest2624910-21kworker/u8:3+events_unbound07:31:021
2644678993126,4cyclictest2666305-21kworker/u8:1+events_unbound08:21:121
2644678993125,5cyclictest2937315-21kthreadcore12:01:041
2644678993123,5cyclictest280-21systemd-journal11:10:001
2644678993121,8cyclictest2785096-21ntpq09:26:091
2644674993127,3cyclictest2741074-21kworker/u8:0+events_unbound09:01:140
26914002300,5sleep30-21swapper/307:55:013
2644681993026,2cyclictest2940461-21fschecks_time12:05:572
2644681993025,3cyclictest2830627-21kworker/u8:1+flush-8:011:05:582
2644681993022,6cyclictest280-21systemd-journal12:05:002
2644678993025,4cyclictest2746239-21kworker/u8:3+events_unbound10:20:561
2644674993026,3cyclictest2830627-21kworker/u8:1+events_unbound10:36:090
2644681992921,5cyclictest280-21systemd-journal09:05:392
2644674992924,4cyclictest2830627-21kworker/u8:1+flush-8:011:00:590
2644681992825,2cyclictest2825868-21aten2_r5power_p10:10:562
2644678992823,4cyclictest2899904-21kworker/u8:1+events_unbound12:31:061
2644678992823,4cyclictest2899904-21kworker/u8:1+events_unbound12:31:061
2644678992823,4cyclictest2713809-21kthreadcore08:16:011
2644674992824,3cyclictest2624910-21kworker/u8:3+events_unbound07:13:180
2644674992824,3cyclictest2624910-21kworker/u8:3+events_unbound07:13:170
26442402282,6sleep00-21swapper/007:06:480
2644681992723,2cyclictest2825078-21unixbench_multi10:06:142
2644681992721,4cyclictest2845345-21cp10:30:002
2644681992718,7cyclictest280-21systemd-journal10:50:002
2644681992718,7cyclictest280-21systemd-journal10:49:592
2644681992622,2cyclictest2751833-21fschecks_time08:55:572
2644681992619,5cyclictest280-21systemd-journal11:46:142
2644681992618,6cyclictest280-21systemd-journal12:25:002
2644681992616,8cyclictest2660511-21ntpq07:21:062
2644678992621,4cyclictest2935044-21kworker/u8:2+events_unbound12:16:121
2644678992619,6cyclictest2925326-21aten2_r5power_p11:50:541
2644674992622,3cyclictest2746239-21kworker/u8:3+flush-8:008:56:030
26956882250,3sleep20-21swapper/207:56:132
2644681992521,3cyclictest2870560-21apt-config10:55:002
2644681992521,3cyclictest2870560-21apt-config10:54:592
2644681992521,3cyclictest2771677-21fschecks_time09:15:582
2644681992521,2cyclictest2875055-21unixbench_multi10:56:132
2644681992520,4cyclictest2889974-21unixbench_singl11:11:142
2644681992520,3cyclictest0-21swapper/208:20:002
2644678992521,3cyclictest2746239-21kworker/u8:3+flush-8:009:41:081
2644674992521,3cyclictest2666305-21kworker/u8:1+events_unbound08:05:180
2644681992421,2cyclictest2945543-21fschecks_count12:10:582
2644681992420,3cyclictest2855370-21cron10:40:002
2644681992420,2cyclictest2974489-21unixbench_multi12:36:102
2644681992418,4cyclictest2895219-21sendmail11:20:012
264468199241,5cyclictest2910791-21perl11:35:572
264468199240,11cyclictest28197262ntpq10:01:072
2644678992419,4cyclictest2796483-21kworker/u8:0+flush-8:009:56:121
2644681992319,2cyclictest2795443-21unixbench_singl09:36:132
2644681992319,2cyclictest2786418-21cpuspeed_turbos09:30:552
2644681992318,3cyclictest2740663-21unixbench_multi08:41:112
2644681992318,3cyclictest0-21swapper/211:05:012
264468199231,6cyclictest2655520-21ntpq07:16:052
2644681992313,7cyclictest2735214-21ntpq08:36:022
27851532220,2sleep3481ktimers/309:26:103
2644681992219,2cyclictest2856062-21fschecks_time10:40:582
2644681992218,2cyclictest2806057-21aten2_r5power_c09:50:542
2644681992214,6cyclictest280-21systemd-journal08:10:012
2644678992217,3cyclictest2711540-21kworker/u8:2+flush-8:008:35:581
271798922110,7sleep30-21swapper/308:21:023
2644678992116,3cyclictest0-21swapper/112:21:121
2644681992017,2cyclictest2672458-21kthreadcore07:36:022
2644681992017,2cyclictest2661926-21fschecks_count07:25:582
2644681992016,3cyclictest2919602-21unixbench_multi11:41:142
2644681992016,2cyclictest2929862-21basename11:55:002
2644681992016,2cyclictest2811072-21aten2_r5power_v09:55:532
2644681992016,2cyclictest2730768-21unixbench_singl08:31:132
2644681992012,6cyclictest280-21systemd-journal11:35:002
2644681991915,2cyclictest0-21swapper/212:35:002
2644681991915,2cyclictest0-21swapper/212:35:002
2644681991914,3cyclictest2721241-21sh08:24:592
2644681991910,7cyclictest2848036-21tr10:31:012
2644681991910,7cyclictest2668712-21tr07:31:032
264468199188,8cyclictest280-21systemd-journal11:59:592
264468199182,15cyclictest0-21swapper/207:46:112
264468199182,11cyclictest2785044-21ntpq09:26:072
2644681991814,3cyclictest2771014-21sh09:15:002
2644681991814,3cyclictest2771014-21sh09:14:592
2644681991812,4cyclictest0-21swapper/209:01:022
26398822183,8sleep30-21swapper/307:05:093
264468199178,7cyclictest2804121-21tr09:46:022
264468199177,3cyclictest0-21swapper/207:41:012
264468199172,10cyclictest2835695-21apt-get10:20:552
2644681991714,2cyclictest0-21swapper/208:01:102
2644681991713,2cyclictest0-21swapper/210:16:132
2644681991713,2cyclictest0-21swapper/207:11:122
2644681991713,2cyclictest0-21swapper/207:11:122
2644681991712,3cyclictest0-21swapper/208:26:012
29192022167,5sleep30-21swapper/311:41:093
2644681991613,2cyclictest2900192-21ls11:25:002
2644681991613,2cyclictest0-21swapper/209:20:412
2644681991612,3cyclictest0-21swapper/208:45:572
27096502153,9sleep30-21swapper/308:11:033
28678532144,6sleep30-21swapper/310:51:023
28678532144,6sleep30-21swapper/310:51:023
26470642146,5sleep30-21swapper/307:11:043
26470642146,5sleep30-21swapper/307:11:043
29657632133,6sleep30-21swapper/312:30:583
29657632133,6sleep30-21swapper/312:30:583
29495992133,6sleep30-21swapper/312:11:193
29399532132,6sleep30-21swapper/312:05:023
29347792132,7sleep30-21swapper/312:00:003
28499272133,6sleep30-21swapper/310:31:113
28307192132,7sleep30-21swapper/310:15:543
28212462133,6sleep30-21swapper/310:06:003
28169482133,6sleep30-21swapper/310:01:023
27908682132,6sleep30-21swapper/309:35:023
29646752122,6sleep30-21swapper/312:29:183
29499032122,5sleep30-21swapper/312:15:013
29351372122,6sleep30-21swapper/312:00:563
29207682120,8sleep30-21swapper/311:46:003
29106912122,6sleep30-21swapper/311:35:573
29004852121,7sleep30-21swapper/311:25:523
28956102122,6sleep30-21swapper/311:20:563
28903272122,6sleep30-21swapper/311:15:023
28820242122,6sleep30-21swapper/311:06:033
28800512122,6sleep30-21swapper/311:01:133
28606622123,5sleep30-21swapper/310:45:533
28606622123,5sleep30-21swapper/310:45:533
28504782122,5sleep30-21swapper/310:35:013
28405292122,5sleep30-21swapper/310:25:023
28356672122,6sleep30-21swapper/310:20:533
28023222123,6sleep30-21swapper/309:46:023
27989802122,6sleep30-21swapper/309:41:033
27713322123,6sleep30-21swapper/309:15:563
27659232122,6sleep30-21swapper/309:08:173
27588892122,5sleep30-21swapper/309:01:033
27517682122,6sleep30-21swapper/308:55:573
27413762122,6sleep30-21swapper/308:45:543
27262212122,5sleep30-21swapper/308:30:013
27258962122,6sleep30-21swapper/308:26:123
27012252122,5sleep30-21swapper/308:05:003
26968592122,6sleep30-21swapper/308:00:563
26959202122,6sleep30-21swapper/307:56:153
26818762122,6sleep30-21swapper/307:45:593
26767622122,6sleep30-21swapper/307:40:583
26761632120,6sleep30-21swapper/307:40:013
26663022122,5sleep30-21swapper/307:30:023
26562672123,6sleep30-21swapper/307:18:183
29705132112,5sleep30-21swapper/312:35:563
29550772112,5sleep30-21swapper/312:20:033
29296372112,5sleep30-21swapper/311:52:183
29058642112,5sleep30-21swapper/311:30:593
28856172112,6sleep30-21swapper/311:10:393
28707472112,5sleep30-21swapper/310:55:043
28560522112,5sleep30-21swapper/310:40:593
28254512111,5sleep30-21swapper/310:10:013
28112072112,5sleep30-21swapper/309:55:573
28059592114,4sleep30-21swapper/309:50:233
27864472112,5sleep30-21swapper/309:30:573
27759902112,5sleep30-21swapper/309:20:013
27462682112,5sleep30-21swapper/308:50:283
27367452111,6sleep30-21swapper/308:40:563
27323202112,5sleep30-21swapper/308:35:593
27118762111,6sleep30-21swapper/308:15:573
26621502112,5sleep30-21swapper/307:26:013
26568622112,5sleep30-21swapper/307:20:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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