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2026-07-23 - 19:56

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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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  Eltec
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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack3slot5s.osadl.org (updated Thu Jul 23, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
247032900sleep0121650irq/29-eth0_g0_09:32:370
121720ksoftirqd/1121750irq/30-eth0_g0_12:20:441
274532660sleep0121750irq/30-eth0_g0_11:54:030
189572590sleep1121750irq/30-eth0_g0_09:07:501
121530ksoftirqd/1121750irq/30-eth0_g0_12:09:191
121510ksoftirqd/1121650irq/29-eth0_g0_12:04:341
121650500irq/29-eth0_g0_31ksoftirqd/007:37:510
121490ksoftirqd/1121750irq/30-eth0_g0_11:21:231
121470ksoftirqd/1121750irq/30-eth0_g0_11:36:301
121470ksoftirqd/1121750irq/30-eth0_g0_11:36:301
45282460sleep1121650irq/29-eth0_g0_12:32:511
121750460irq/30-eth0_g0_22069-21taskset09:21:251
121460ksoftirqd/1121750irq/30-eth0_g0_09:31:151
121460ksoftirqd/1121750irq/30-eth0_g0_09:31:151
121460ksoftirqd/1121650irq/29-eth0_g0_11:53:271
121650450irq/29-eth0_g0_1964-21runrttasks07:04:160
121650450irq/29-eth0_g0_1964-21runrttasks07:04:160
121450ksoftirqd/1121750irq/30-eth0_g0_11:51:031
121750440irq/30-eth0_g0_9048-21runrttasks10:38:541
121440ksoftirqd/1121650irq/29-eth0_g0_10:49:191
121750430irq/30-eth0_g0_1219-21kworker/1:211:25:031
121750430irq/30-eth0_g0_1219-21kworker/1:210:00:191
121430ksoftirqd/1121750irq/30-eth0_g0_10:07:421
121430ksoftirqd/1121650irq/29-eth0_g0_08:57:131
121430ksoftirqd/1121650irq/29-eth0_g0_08:57:131
2147499429cyclictest243772sleep111:42:481
135182420chrt121650irq/29-eth0_g0_10:57:500
121750420irq/30-eth0_g0_1219-21kworker/1:210:31:201
121750420irq/30-eth0_g0_1219-21kworker/1:209:13:221
121750420irq/30-eth0_g0_121ksoftirqd/111:07:331
121420ksoftirqd/1121650irq/29-eth0_g0_10:24:291
2147499411cyclictest3446-21seq12:27:531
121750410irq/30-eth0_g0_1219-21kworker/1:210:47:281
121650410irq/29-eth0_g0_31ksoftirqd/009:20:560
121650410irq/29-eth0_g0_1334-21latency_hist07:57:340
121650410irq/29-eth0_g0_13-21kworker/0:110:47:510
121650410irq/29-eth0_g0_13-21kworker/0:110:15:340
121410ksoftirqd/1121750irq/30-eth0_g0_11:49:280
121410ksoftirqd/1121650irq/29-eth0_g0_10:57:571
121650400irq/29-eth0_g0_9236-21taskset08:27:520
121650400irq/29-eth0_g0_13-21kworker/0:111:45:190
121650400irq/29-eth0_g0_13-21kworker/0:111:41:180
121650400irq/29-eth0_g0_13-21kworker/0:111:35:050
121650400irq/29-eth0_g0_13-21kworker/0:111:35:050
121650400irq/29-eth0_g0_13-21kworker/0:111:27:510
121650400irq/29-eth0_g0_13-21kworker/0:110:30:470
121650400irq/29-eth0_g0_13-21kworker/0:109:48:210
121650400irq/29-eth0_g0_13-21kworker/0:109:29:550
121650400irq/29-eth0_g0_13-21kworker/0:109:29:550
121650400irq/29-eth0_g0_13-21kworker/0:109:16:550
121400ksoftirqd/121304-21runrttasks07:05:441
121400ksoftirqd/121304-21runrttasks07:05:441
121400ksoftirqd/1121750irq/30-eth0_g0_10:11:150
121400ksoftirqd/1121650irq/29-eth0_g0_11:16:151
23092390sleep0121750irq/30-eth0_g0_12:23:080
2147499391cyclictest30549-21ntpq07:42:521
2147499391cyclictest27932-21chrt07:32:481
121750390irq/30-eth0_g0_31ksoftirqd/010:37:550
121750390irq/30-eth0_g0_1219-21kworker/1:211:57:551
121650390irq/29-eth0_g0_31ksoftirqd/010:24:110
121650390irq/29-eth0_g0_31ksoftirqd/010:21:220
121650390irq/29-eth0_g0_13-21kworker/0:112:27:340
121650390irq/29-eth0_g0_13-21kworker/0:112:09:100
121650390irq/29-eth0_g0_13-21kworker/0:111:24:390
121650390irq/29-eth0_g0_13-21kworker/0:109:25:100
121650390irq/29-eth0_g0_13-21kworker/0:109:07:460
121390ksoftirqd/1121750irq/30-eth0_g0_12:35:410
121390ksoftirqd/1121750irq/30-eth0_g0_12:14:060
121390ksoftirqd/1121750irq/30-eth0_g0_11:10:580
121390ksoftirqd/1121750irq/30-eth0_g0_09:39:160
121390ksoftirqd/1121750irq/30-eth0_g0_07:25:570
121390ksoftirqd/1121750irq/30-eth0_g0_07:21:580
121390ksoftirqd/1121650irq/29-eth0_g0_10:16:161
799380migration/02008-21timerandwakeup07:57:540
2147499382cyclictest24255-21irqstats07:17:481
2147499382cyclictest18484-21latency_hist09:07:341
2147499381cyclictest7061-21taskset10:32:431
2147499381cyclictest38702sleep110:17:521
121750380irq/30-eth0_g0_1219-21kworker/1:209:24:581
121750380irq/30-eth0_g0_121ksoftirqd/109:55:591
121750380irq/30-eth0_g0_121ksoftirqd/109:45:031
121750380irq/30-eth0_g0_121ksoftirqd/109:45:031
121750380irq/30-eth0_g0_121ksoftirqd/109:38:241
121750380irq/30-eth0_g0_0-21swapper/112:26:361
121750380irq/30-eth0_g0_0-21swapper/109:37:021
121650380irq/29-eth0_g0_31313-21latency_hist07:47:340
121650380irq/29-eth0_g0_31ksoftirqd/011:02:490
121650380irq/29-eth0_g0_1964-21runrttasks09:46:230
121650380irq/29-eth0_g0_1964-21runrttasks09:46:230
121650380irq/29-eth0_g0_13-21kworker/0:111:59:380
121650380irq/29-eth0_g0_13-21kworker/0:111:18:360
121650380irq/29-eth0_g0_13-21kworker/0:110:53:310
121650380irq/29-eth0_g0_11285-21df_abs08:37:441
121650380irq/29-eth0_g0_11285-21df_abs08:37:441
121650380irq/29-eth0_g0_10006-21sendmail_mailst10:42:540
121380ksoftirqd/1121750irq/30-eth0_g0_08:40:370
121380ksoftirqd/1121750irq/30-eth0_g0_08:40:370
121380ksoftirqd/1121750irq/30-eth0_g0_08:11:370
121380ksoftirqd/1121650irq/29-eth0_g0_11:07:521
2147499372cyclictest744-21munin-run10:07:331
2147499372cyclictest6606-21memory08:17:471
2147499371cyclictest8073-21zcat08:22:531
2147499371cyclictest32708-21df_abs07:52:461
2147499371cyclictest22938-21/usr/sbin/munin11:37:531
2147499371cyclictest2109-21lldpd07:10:491
121750370irq/30-eth0_g0_1219-21kworker/1:211:28:511
121650370irq/29-eth0_g0_21944-21ntpdc07:07:490
121650370irq/29-eth0_g0_1964-21runrttasks07:32:140
121650370irq/29-eth0_g0_13-21kworker/0:112:18:040
121650370irq/29-eth0_g0_13-21kworker/0:112:06:100
121650370irq/29-eth0_g0_13-21kworker/0:110:05:180
121650370irq/29-eth0_g0_13-21kworker/0:109:53:270
121370ksoftirqd/1121750irq/30-eth0_g0_11:16:200
121370ksoftirqd/1121650irq/29-eth0_g0_09:02:500
2147499362cyclictest5640-21awk08:12:531
2147499361cyclictest22985-21if_eth007:12:481
121750360irq/30-eth0_g0_1219-21kworker/1:209:47:541
121650360irq/29-eth0_g0_7616-21taskset10:32:530
121650360irq/29-eth0_g0_6860-21sendmail_mailst08:17:530
121650360irq/29-eth0_g0_23502-21unixbench_singl07:12:560
121650360irq/29-eth0_g0_1964-21runrttasks08:23:210
121650360irq/29-eth0_g0_1964-21runrttasks07:34:150
121650360irq/29-eth0_g0_14208-21sendmail_mailqu08:47:530
121650360irq/29-eth0_g0_14208-21sendmail_mailqu08:47:530
121360ksoftirqd/1121750irq/30-eth0_g0_08:57:500
2147499351cyclictest31549-21awk07:47:461
2147499351cyclictest28996-21df07:37:451
2147499351cyclictest128402sleep108:42:491
2147499351cyclictest128402sleep108:42:491
2147499351cyclictest12139-21taskset10:52:461
2147499351cyclictest0-21swapper/112:12:511
121650350irq/29-eth0_g0_1964-21runrttasks09:58:410
121650350irq/29-eth0_g0_1964-21runrttasks08:47:090
121650350irq/29-eth0_g0_1964-21runrttasks08:47:090
121650350irq/29-eth0_g0_1964-21runrttasks08:37:020
121650350irq/29-eth0_g0_1964-21runrttasks08:13:210
121650350irq/29-eth0_g0_1964-21runrttasks08:05:200
121650350irq/29-eth0_g0_1964-21runrttasks07:51:200
2147499342cyclictest25292-21cpu07:22:441
21474993419cyclictest16585-21proc_pri08:57:521
2147499341cyclictest0-21swapper/108:09:591
2147499341cyclictest0-21swapper/108:06:201
121650340irq/29-eth0_g0_15221-21missed_timers08:52:510
121650340irq/29-eth0_g0_15221-21missed_timers08:52:510
2147499331cyclictest91732sleep108:27:511
2147499331cyclictest0-21swapper/108:37:261
121750330irq/30-eth0_g0_0-21swapper/107:57:541
121330ksoftirqd/1121650irq/29-eth0_g0_08:47:451
121330ksoftirqd/1121650irq/29-eth0_g0_08:47:451
121750320irq/30-eth0_g0_26481-21cpu07:27:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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