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2026-08-03 - 06:07

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 the 792 highest latencies:
System rack5slot4s.osadl.org (updated Mon Aug 03, 2026 00:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
61106622060,5sleep30-21swapper/319:25:013
8835072740,2chrt575-21kworker/3:2-events23:58:123
8547392730,4sleep0201rcuc/023:32:530
8008982630,4sleep2371rcuc/222:37:582
593968996152,6cyclictest883671-21latency_hist00:00:011
593968995544,8cyclictest275-21systemd-journal21:50:001
593965995347,4cyclictest557014-21kworker/u8:0+events_unbound20:05:010
593968995243,6cyclictest720310-21latency_hist21:15:011
8913472500,1sleep0891353-21tr00:08:000
593965995045,4cyclictest557014-21kworker/u8:0+events_unbound20:15:010
593965995038,5cyclictest794912-21kworker/u8:1+events_unbound22:33:080
7093882480,3chrt709393-21needreboot21:03:030
593968994839,6cyclictest779646-21latency_hist22:15:011
593965994843,4cyclictest3425444-21kworker/u8:3+flush-8:019:43:070
593965994736,4cyclictest557014-21kworker/u8:0+events_unbound21:17:570
593965994642,3cyclictest557014-21kworker/u8:0+flush-8:019:28:070
593965994541,3cyclictest779666-21kworker/u8:3+events_unbound22:48:070
593965994534,4cyclictest819458-21kworker/u8:1+events_unbound23:27:550
593965994533,5cyclictest557014-21kworker/u8:0+events_unbound23:07:550
593968994438,4cyclictest695147-21latency_hist20:50:001
593968994436,5cyclictest625954-21latency_hist19:40:001
593965994439,4cyclictest819458-21kworker/u8:1+flush-8:023:03:100
593965994436,3cyclictest893657-21kworker/u8:1+events_unbound00:18:060
593965994430,10cyclictest275-21systemd-journal00:05:000
593972994236,4cyclictest838498-21kworker/u8:3+events_unbound23:37:572
593972994137,3cyclictest3425444-21kworker/u8:3+events_unbound19:22:552
593965994137,3cyclictest735539-21kworker/u8:2+flush-8:021:33:120
593965994136,4cyclictest680098-21kworker/u8:3+events_unbound21:08:090
593965994134,5cyclictest557014-21kworker/u8:0+events_unbound22:08:040
593965994129,4cyclictest557014-21kworker/u8:0+events_unbound20:40:030
593968994037,2cyclictest557014-21kworker/u8:0+flush-8:019:52:591
593965994035,4cyclictest854282-21kworker/u8:0+events_unbound23:50:000
593965994035,3cyclictest893657-21kworker/u8:1+events_unbound00:23:100
593972993934,4cyclictest3425444-21kworker/u8:3+events_unbound19:18:102
593965993928,6cyclictest803681-21kworker/u8:2+flush-8:023:13:100
593972993832,4cyclictest854282-21kworker/u8:0+events_unbound00:27:562
593965993835,2cyclictest557014-21kworker/u8:0+events_unbound22:43:080
593965993834,3cyclictest854282-21kworker/u8:0+events_unbound23:57:570
593965993834,3cyclictest854282-21kworker/u8:0+events_unbound00:40:000
593965993834,3cyclictest750018-21kworker/u8:3+flush-8:021:58:080
593965993834,3cyclictest750018-21kworker/u8:3+flush-8:021:52:550
593965993733,3cyclictest680098-21kworker/u8:3+flush-8:020:48:090
593965993733,3cyclictest557014-21kworker/u8:0+flush-8:022:27:550
593965993732,3cyclictest635832-21kworker/u8:2+events_unbound20:33:120
593965993728,4cyclictest883964-21kworker/u8:2+events_unbound00:14:330
593968993629,5cyclictest705041-21grep20:58:101
593968993628,6cyclictest3425444-21kworker/u8:3+flush-8:020:12:551
593965993632,3cyclictest854282-21kworker/u8:0+flush-8:023:44:340
593965993631,3cyclictest557014-21kworker/u8:0+events_unbound19:55:000
593965993630,4cyclictest794912-21kworker/u8:1+events_unbound22:37:520
593965993628,6cyclictest3425444-21kworker/u8:3+events_unbound19:32:520
593965993627,4cyclictest557014-21kworker/u8:0+flush-8:020:35:020
593972993531,3cyclictest854282-21kworker/u8:0+flush-8:023:58:112
593968993528,5cyclictest557014-21kworker/u8:0+flush-8:021:18:071
593968993526,6cyclictest650626-21latency_hist20:05:011
593965993531,3cyclictest635832-21kworker/u8:2+events_unbound20:18:070
593965993530,3cyclictest557014-21kworker/u8:0+events_unbound19:12:540
593965993529,4cyclictest557014-21kworker/u8:0+events_unbound20:23:040
593965993529,4cyclictest557014-21kworker/u8:0+events_unbound19:37:590
593965993529,4cyclictest3425444-21kworker/u8:3+events_unbound20:08:130
593968993430,2cyclictest671561-21irqrtprio20:27:561
593965993430,3cyclictest557014-21kworker/u8:0+flush-8:021:37:580
593965993430,3cyclictest557014-21kworker/u8:0+flush-8:019:15:090
5893342341,27sleep00-21swapper/019:07:130
593972993329,3cyclictest3425444-21kworker/u8:3+flush-8:019:32:562
593965993329,3cyclictest854282-21kworker/u8:0+events_unbound23:54:080
593965993329,3cyclictest680098-21kworker/u8:3+events_unbound20:58:070
593965993329,3cyclictest557014-21kworker/u8:0+events_unbound22:23:070
593965993329,3cyclictest557014-21kworker/u8:0+events_unbound21:23:040
593972993228,3cyclictest854282-21kworker/u8:0+flush-8:023:52:552
593968993227,3cyclictest850189-21irqcore23:27:571
593965993229,2cyclictest557014-21kworker/u8:0+events_unbound19:48:050
593965993228,3cyclictest665417-21kworker/u8:1+events_unbound21:43:160
593965993228,3cyclictest557014-21kworker/u8:0+flush-8:022:18:430
593965993224,3cyclictest557014-21kworker/u8:0+events_unbound19:20:010
5937872324,9sleep10-21swapper/119:09:471
593968993127,3cyclictest557014-21kworker/u8:0+flush-8:021:38:041
593968993122,6cyclictest849140-21latency_hist23:25:011
593965993129,1cyclictest665417-21kworker/u8:1+events_unbound22:13:110
593965993127,3cyclictest838498-21kworker/u8:3+events_unbound23:23:120
593965993127,3cyclictest680098-21kworker/u8:3+events_unbound20:52:560
593965993126,4cyclictest635832-21kworker/u8:2+flush-8:020:28:260
593965993123,3cyclictest893657-21kworker/u8:1+events_unbound00:26:280
593965993123,3cyclictest750018-21kworker/u8:3+events_unbound21:49:390
5937362314,10sleep20-21swapper/219:09:082
593968993026,3cyclictest557014-21kworker/u8:0+flush-8:019:15:051
593968993020,8cyclictest780087-21/usr/sbin/munin22:18:011
593965993023,5cyclictest838498-21kworker/u8:3+events_unbound23:37:510
59396599302,27cyclictest700237-21kworker/0:1+events21:13:100
593972992925,3cyclictest898602-21unixbench_singl00:13:122
593972992921,6cyclictest700064-21cron20:55:002
593972992920,7cyclictest809892-21aten2_r5power_p22:47:522
593972992916,3cyclictest7544061mailstats21:48:072
593968992924,4cyclictest665417-21kworker/u8:1+events_unbound21:28:091
593965992925,3cyclictest854282-21kworker/u8:0+events_unbound00:32:340
593965992925,3cyclictest803681-21kworker/u8:2+events_unbound23:17:340
593965992925,3cyclictest557014-21kworker/u8:0+events_unbound22:53:070
8574142280,6sleep3451irq_work/323:33:003
59397299287,6cyclictest664535-21wc20:18:022
593972992820,7cyclictest655335-21unixbench_singl20:08:122
593972992820,6cyclictest830156-21fschecks_time23:07:552
593972992818,9cyclictest805138-21fschecks_count22:42:542
593968992826,1cyclictest3425444-21kworker/u8:3+events_unbound19:42:531
593968992822,4cyclictest789558-21awk22:25:001
593965992824,3cyclictest750018-21kworker/u8:3+events_unbound22:00:020
593965992824,3cyclictest557014-21kworker/u8:0+flush-8:019:57:380
593972992721,4cyclictest770442-21cpuspeed_turbos22:07:532
593972992719,6cyclictest760668-21fschecks_time21:57:542
593972992719,6cyclictest734857-21unixbench_multi21:28:102
593968992725,1cyclictest665417-21kworker/u8:1+events_unbound22:03:091
593968992722,3cyclictest799919-21apt-get22:37:501
593968992722,3cyclictest0-21swapper/122:43:101
593968992721,4cyclictest557014-21kworker/u8:0+flush-8:019:28:101
593968992720,5cyclictest665839-21/usr/sbin/munin20:23:081
593968992719,6cyclictest923691-21latency_hist00:40:011
593968992719,6cyclictest557014-21kworker/u8:0+flush-8:021:22:581
593972992623,2cyclictest914568-21fschecks_time00:32:552
593972992618,7cyclictest843961-21unixbench_singl23:18:102
593972992617,7cyclictest598944-21cp19:15:002
59397299261,11cyclictest684610-21ntpq20:38:092
59397299260,9cyclictest646160-21taskset20:02:532
593968992621,4cyclictest665417-21kworker/u8:1+flush-8:021:43:091
593968992620,5cyclictest557014-21kworker/u8:0+events_unbound19:13:091
593968992620,4cyclictest908484-21unixbench_multi00:23:111
593968992619,5cyclictest893657-21kworker/u8:1+flush-8:000:18:021
593968992614,4cyclictest421rcuog/200:07:561
593965992622,3cyclictest665417-21kworker/u8:1+events_unbound21:26:330
59397299256,2cyclictest7455631aten2_r5power_e21:42:532
593972992521,3cyclictest735539-21kworker/u8:2+flush-8:021:33:142
593972992521,3cyclictest557014-21kworker/u8:0+flush-8:022:28:112
593972992520,3cyclictest819986-21fschecks_count22:57:552
593972992518,5cyclictest710390-21cp21:05:012
593972992515,8cyclictest705256-21awk21:00:002
59397299250,5cyclictest625267-21ntpq19:38:062
593968992522,2cyclictest645713-21systemd-run20:00:001
593968992520,3cyclictest665416-21true20:20:001
593965992521,3cyclictest557014-21kworker/u8:0+events_unbound22:55:010
67978922414,6sleep30-21swapper/320:33:103
59397299246,1cyclictest421rcuog/219:56:312
593972992421,2cyclictest824991-21fschecks_time23:02:562
593972992420,3cyclictest611599-21cpuspeed_turbos19:27:532
593972992419,4cyclictest557014-21kworker/u8:0+flush-8:022:17:592
593972992419,3cyclictest720104-21unixbench_singl21:13:112
59397299240,5cyclictest818334-21sed22:53:002
59397299240,5cyclictest724765-21sensors_fan21:18:082
593968992421,2cyclictest869584-21cpuspeed_turbos23:47:521
593968992421,2cyclictest610934-21systemd-run19:25:001
593968992420,2cyclictest0-21swapper/123:20:001
593968992419,4cyclictest883964-21kworker/u8:2+flush-8:000:12:581
593968992419,3cyclictest830562-21irqrtprio23:07:581
593968992419,3cyclictest750018-21kworker/u8:3+events_unbound21:52:591
593968992419,3cyclictest680023-21unixbench_multi20:33:111
593968992416,6cyclictest631337-21/usr/sbin/munin19:48:061
593968992410,5cyclictest0-21swapper/122:54:001
59397299233,2cyclictest0-21swapper/223:23:012
59397299232,2cyclictest0-21swapper/200:07:582
593972992319,3cyclictest557014-21kworker/u8:0+events_unbound20:23:002
593972992318,3cyclictest919441-21fschecks_count00:37:552
593972992318,3cyclictest0-21swapper/220:12:532
593968992320,2cyclictest914809-21irqcore00:32:571
593968992319,3cyclictest699876-21unixbench_singl20:53:111
593968992319,2cyclictest0-21swapper/123:43:061
593968992319,2cyclictest0-21swapper/122:27:541
593968992319,2cyclictest0-21swapper/122:08:011
593968992319,2cyclictest0-21swapper/120:08:111
593968992317,4cyclictest829252-21apt-key23:05:011
59397299226,1cyclictest421rcuog/221:51:342
59397299222,5cyclictest0-21swapper/220:30:002
593972992218,2cyclictest0-21swapper/223:47:512
593972992212,8cyclictest888663-21cat00:05:002
59396899229,4cyclictest0-21swapper/119:30:101
593968992219,2cyclictest690231-21systemd-run20:45:001
593968992218,2cyclictest0-21swapper/122:32:571
593968992218,2cyclictest0-21swapper/120:38:061
593968992217,3cyclictest707876-21kthreadcore21:03:011
593968992215,5cyclictest665417-21kworker/u8:1+flush-8:021:57:551
593968992215,5cyclictest0-21swapper/100:02:591
593968992213,6cyclictest824192-21latency_hist23:00:001
59397299216,1cyclictest421rcuog/223:12:322
59397299216,1cyclictest421rcuog/222:00:052
59397299216,1cyclictest421rcuog/221:39:472
59397299215,1cyclictest421rcuog/200:21:002
59397299212,4cyclictest0-21swapper/220:33:022
59397299212,4cyclictest0-21swapper/219:47:522
59397299212,10cyclictest0-21swapper/220:43:002
59397299211,6cyclictest795599-21irqcore22:32:592
593972992112,7cyclictest640136-21ntpq19:53:072
59396899218,4cyclictest0-21swapper/122:46:181
593968992117,2cyclictest0-21swapper/123:38:081
593968992117,2cyclictest0-21swapper/123:32:561
593968992117,2cyclictest0-21swapper/121:08:101
593968992117,2cyclictest0-21swapper/100:27:511
593968992116,3cyclictest0-21swapper/121:33:041
593968992114,5cyclictest877984-21ntp_kernel_err23:53:031
59397299206,1cyclictest421rcuog/219:41:432
59397299202,9cyclictest0-21swapper/222:12:532
593972992016,3cyclictest725943-21cut21:22:532
593972992011,7cyclictest902150-21tr00:17:592
59397299200,4cyclictest714681-21ntpq21:08:052
593968992016,2cyclictest0-21swapper/123:12:551
59397299193,6cyclictest0-21swapper/223:27:142
59397299192,6cyclictest0-21swapper/220:47:522
59397299192,4cyclictest0-21swapper/223:34:092
593972991911,6cyclictest866875-21cut23:42:592
5932152193,9sleep30-21swapper/319:08:093
59397299182,2cyclictest0-21swapper/222:20:102
8841422152,9sleep30-21swapper/300:02:513
8319262142,8sleep30-21swapper/323:08:013
9049622132,7sleep30-21swapper/300:23:003
8988332132,6sleep30-21swapper/300:15:033
8246502132,7sleep30-21swapper/323:02:523
7796442132,6sleep30-21swapper/322:15:013
7607302132,7sleep30-21swapper/321:57:573
7092012132,7sleep30-21swapper/321:03:033
7000622132,7sleep30-21swapper/320:55:013
6350522132,7sleep30-21swapper/319:48:013
9185422122,6sleep30-21swapper/300:33:113
9094842122,6sleep30-21swapper/300:27:543
8945692122,6sleep30-21swapper/300:12:573
8688792122,5sleep30-21swapper/323:45:013
8505302122,6sleep30-21swapper/323:27:593
8486342122,6sleep30-21swapper/323:23:103
8400652122,6sleep30-21swapper/323:17:563
8343422122,6sleep30-21swapper/323:10:023
8205802122,6sleep30-21swapper/322:57:583
8043872122,5sleep30-21swapper/322:40:013
7999232122,6sleep30-21swapper/322:37:523
7699342122,5sleep30-21swapper/322:05:023
7457522122,6sleep30-21swapper/321:42:563
7401112122,5sleep30-21swapper/321:35:013
7343512122,6sleep30-21swapper/321:28:033
7246512122,6sleep30-21swapper/321:18:083
7153942122,6sleep30-21swapper/321:10:013
6909212123,5sleep30-21swapper/320:47:553
6860922122,6sleep30-21swapper/320:42:573
6848092122,6sleep30-21swapper/320:38:123
6749212122,6sleep30-21swapper/320:28:093
6649162122,6sleep30-21swapper/320:18:103
6604512122,5sleep30-21swapper/320:15:013
6506602122,6sleep30-21swapper/320:05:023
6474532123,6sleep30-21swapper/320:03:013
6367552121,7sleep30-21swapper/319:52:593
6215072122,6sleep30-21swapper/319:37:533
6208312122,6sleep30-21swapper/319:33:123
6056432122,6sleep30-21swapper/319:18:113
5943532122,6sleep30-21swapper/319:12:543
9189342112,6sleep30-21swapper/300:35:043
8740262112,5sleep30-21swapper/323:50:023
8696012112,6sleep30-21swapper/323:47:533
8593192112,6sleep30-21swapper/323:36:143
8183222112,5sleep30-21swapper/322:53:013
8101782112,6sleep30-21swapper/322:47:553
7946672112,5sleep30-21swapper/322:30:023
7927572112,5sleep30-21swapper/322:28:013
7870252112,5sleep30-21swapper/322:23:003
7755242112,5sleep30-21swapper/322:12:573
7653132112,6sleep30-21swapper/322:02:543
7590742112,5sleep30-21swapper/321:53:033
7504362112,5sleep30-21swapper/321:47:493
7353462112,6sleep30-21swapper/321:30:163
7295112113,4sleep30-21swapper/321:23:053
7107002112,6sleep30-21swapper/321:05:563
7006702112,6sleep30-21swapper/320:56:493
6662332112,5sleep30-21swapper/320:22:553
6427952112,5sleep30-21swapper/319:58:003
6268132112,5sleep30-21swapper/319:42:553
6112782112,6sleep30-21swapper/319:26:543
8890652102,5sleep30-21swapper/300:07:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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