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2026-04-06 - 15:12

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 all highest latencies:
System rack3slot5s.osadl.org (updated Mon Apr 06, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
703721600sleep0121750irq/30-eth0_g0_11:34:260
2695621500sleep0121650irq/29-eth0_g0_10:41:070
2955621430sleep0121650irq/29-eth0_g0_10:52:580
2955621430sleep0121650irq/29-eth0_g0_10:52:580
159512730sleep0121750irq/30-eth0_g0_09:54:510
45702580chrt121650irq/29-eth0_g0_11:24:040
318882580sleep1121750irq/30-eth0_g0_11:01:401
215692510sleep1121750irq/30-eth0_g0_12:32:421
121510ksoftirqd/1121750irq/30-eth0_g0_10:25:491
121470ksoftirqd/1121750irq/30-eth0_g0_12:23:141
121470ksoftirqd/1121750irq/30-eth0_g0_11:51:321
121470ksoftirqd/1121750irq/30-eth0_g0_11:06:241
121470ksoftirqd/1121750irq/30-eth0_g0_10:20:401
121470ksoftirqd/1121750irq/30-eth0_g0_10:20:401
121460ksoftirqd/1121750irq/30-eth0_g0_11:22:001
121650440irq/29-eth0_g0_31ksoftirqd/010:54:530
121440ksoftirqd/1121750irq/30-eth0_g0_11:57:531
69672430sleep16969-21cat09:19:321
121750430irq/30-eth0_g0_1219-21kworker/1:211:46:271
121650430irq/29-eth0_g0_31ksoftirqd/009:27:400
121650430irq/29-eth0_g0_13-21kworker/0:112:18:530
121430ksoftirqd/1121750irq/30-eth0_g0_12:36:190
121430ksoftirqd/1121650irq/29-eth0_g0_12:22:080
121430ksoftirqd/1121650irq/29-eth0_g0_09:18:550
121750420irq/30-eth0_g0_1219-21kworker/1:212:07:491
121750420irq/30-eth0_g0_1219-21kworker/1:211:42:211
121750420irq/30-eth0_g0_1219-21kworker/1:209:46:351
121750420irq/30-eth0_g0_1219-21kworker/1:209:21:501
121750420irq/30-eth0_g0_1219-21kworker/1:209:12:461
121750420irq/30-eth0_g0_1219-21kworker/1:209:12:461
121650420irq/29-eth0_g0_31ksoftirqd/011:39:230
121650420irq/29-eth0_g0_121ksoftirqd/112:27:320
121420ksoftirqd/1121750irq/30-eth0_g0_08:39:390
121750410irq/30-eth0_g0_1219-21kworker/1:211:38:431
121750410irq/30-eth0_g0_1219-21kworker/1:210:30:131
121650410irq/29-eth0_g0_9401-21sendmail_mailqu07:14:510
121650410irq/29-eth0_g0_7102-21unixbench_singl07:04:530
121650410irq/29-eth0_g0_31ksoftirqd/011:03:420
121650410irq/29-eth0_g0_13-21kworker/0:110:27:590
121650410irq/29-eth0_g0_121ksoftirqd/109:34:560
755699401cyclictest17982-21sshd12:18:401
755699401cyclictest16312-21df07:44:431
259802400sleep1121750irq/30-eth0_g0_10:39:031
121750400irq/30-eth0_g0_31ksoftirqd/009:30:570
121750400irq/30-eth0_g0_1219-21kworker/1:209:52:191
121750400irq/30-eth0_g0_121ksoftirqd/109:40:231
121750400irq/30-eth0_g0_121ksoftirqd/108:19:511
121750400irq/30-eth0_g0_0-21swapper/110:47:041
121400ksoftirqd/1121750irq/30-eth0_g0_12:25:371
121400ksoftirqd/1121750irq/30-eth0_g0_11:39:460
121400ksoftirqd/1121750irq/30-eth0_g0_11:14:000
121400ksoftirqd/1121750irq/30-eth0_g0_11:14:000
121400ksoftirqd/1121750irq/30-eth0_g0_09:39:450
755699391cyclictest29689-21taskset10:54:311
755699391cyclictest29689-21taskset10:54:311
121750390irq/30-eth0_g0_14191-21taskset12:02:141
121750390irq/30-eth0_g0_14191-21taskset12:02:141
121750390irq/30-eth0_g0_121ksoftirqd/111:18:591
121750390irq/30-eth0_g0_121ksoftirqd/110:15:261
121650390irq/29-eth0_g0_755599cyclictest10:36:550
121650390irq/29-eth0_g0_4443-21latency_hist09:09:320
121650390irq/29-eth0_g0_31ksoftirqd/009:44:470
121650390irq/29-eth0_g0_19766-21sendmail_mailqu10:09:510
121650390irq/29-eth0_g0_13-21kworker/0:110:46:120
121390ksoftirqd/1121750irq/30-eth0_g0_11:47:310
121390ksoftirqd/1121750irq/30-eth0_g0_11:26:230
121390ksoftirqd/1121750irq/30-eth0_g0_10:06:500
121390ksoftirqd/1121750irq/30-eth0_g0_09:50:010
121390ksoftirqd/1121750irq/30-eth0_g0_09:12:210
121390ksoftirqd/1121750irq/30-eth0_g0_09:12:210
121390ksoftirqd/1121750irq/30-eth0_g0_08:57:230
121390ksoftirqd/1121750irq/30-eth0_g0_08:06:300
121390ksoftirqd/1121750irq/30-eth0_g0_07:53:360
121390ksoftirqd/1121750irq/30-eth0_g0_07:32:260
121390ksoftirqd/1121750irq/30-eth0_g0_07:09:330
121390ksoftirqd/1121650irq/29-eth0_g0_12:12:301
121390ksoftirqd/1121650irq/29-eth0_g0_10:40:081
121390ksoftirqd/1121650irq/29-eth0_g0_08:54:441
755699381cyclictest31515-21grep08:44:541
755699381cyclictest30139-21ps08:39:501
755699381cyclictest2738-21grep08:59:511
755699381cyclictest0-21swapper/109:37:361
121750380irq/30-eth0_g0_1875-21runrttasks10:58:391
121750380irq/30-eth0_g0_1219-21kworker/1:211:31:331
121750380irq/30-eth0_g0_1219-21kworker/1:209:25:401
121750380irq/30-eth0_g0_121ksoftirqd/111:12:291
121750380irq/30-eth0_g0_121ksoftirqd/111:12:291
121750380irq/30-eth0_g0_121ksoftirqd/109:55:581
121750380irq/30-eth0_g0_121ksoftirqd/109:29:351
121650380irq/29-eth0_g0_7143-21vmstat07:04:541
121650380irq/29-eth0_g0_31ksoftirqd/012:01:260
121650380irq/29-eth0_g0_31ksoftirqd/012:01:260
121650380irq/29-eth0_g0_31ksoftirqd/011:57:220
121650380irq/29-eth0_g0_31ksoftirqd/010:15:050
121650380irq/29-eth0_g0_18990-21netstat07:54:461
121650380irq/29-eth0_g0_18990-21netstat07:54:461
121650380irq/29-eth0_g0_13-21kworker/0:112:08:240
121650380irq/29-eth0_g0_13-21kworker/0:109:22:020
121380ksoftirqd/1121750irq/30-eth0_g0_11:52:360
121380ksoftirqd/1121750irq/30-eth0_g0_10:02:410
121380ksoftirqd/1121750irq/30-eth0_g0_08:03:080
121380ksoftirqd/1121650irq/29-eth0_g0_08:01:561
755699372cyclictest19141-21munin-run10:09:311
755699371cyclictest14926-21latency_hist07:39:321
121750370irq/30-eth0_g0_1219-21kworker/1:211:28:301
121750370irq/30-eth0_g0_1219-21kworker/1:209:59:351
121650370irq/29-eth0_g0_26255-21ls08:24:470
121650370irq/29-eth0_g0_21881-21/usr/sbin/munin10:19:530
121650370irq/29-eth0_g0_21881-21/usr/sbin/munin10:19:530
121650370irq/29-eth0_g0_1875-21runrttasks10:29:580
121650370irq/29-eth0_g0_1875-21runrttasks08:30:190
121650370irq/29-eth0_g0_1875-21runrttasks08:24:270
121650370irq/29-eth0_g0_17305-21munin-run07:49:310
121650370irq/29-eth0_g0_13-21kworker/0:112:33:400
121650370irq/29-eth0_g0_13-21kworker/0:111:18:140
121370ksoftirqd/1121750irq/30-eth0_g0_10:09:391
755699361cyclictest8931-21df_abs07:14:431
755699361cyclictest29024-21grep08:34:511
755699361cyclictest24047-21sendmail_mailqu08:14:511
755699361cyclictest22949-21munin-plugin-st12:39:321
755699361cyclictest22933-21unixbench_multi08:09:511
755699361cyclictest18084-21grep07:49:531
755699360cyclictest0-21swapper/107:33:431
121650360irq/29-eth0_g0_31ksoftirqd/007:19:520
121650360irq/29-eth0_g0_19305-21unixbench_singl07:54:520
121650360irq/29-eth0_g0_19305-21unixbench_singl07:54:520
755699353cyclictest41350irq/23-fsldma-c08:24:511
755699351cyclictest32521-21ps08:49:491
755699351cyclictest16095-21latency_hist07:44:311
755699351cyclictest10153-21taskset07:19:421
121650350irq/29-eth0_g0_32360-21missed_timers08:49:460
121650350irq/29-eth0_g0_2728-21unixbench_multi08:59:510
121650350irq/29-eth0_g0_24090-21sort08:14:520
121650350irq/29-eth0_g0_1875-21runrttasks08:48:210
121650350irq/29-eth0_g0_1875-21runrttasks08:09:460
121650350irq/29-eth0_g0_16344-21unixbench_multi12:09:540
121650350irq/29-eth0_g0_13-21kworker/0:111:04:340
755699341cyclictest8290-21grep07:09:521
755699340cyclictest0-21swapper/107:24:481
121650340irq/29-eth0_g0_28862-21proc_pri08:34:490
121650340irq/29-eth0_g0_1875-21runrttasks07:41:170
121650340irq/29-eth0_g0_12449-21ls07:29:320
755699331cyclictest21645-21wc08:04:521
755699330cyclictest0-21swapper/108:29:461
121650330irq/29-eth0_g0_3985-21unixbench_singl09:04:541
121650330irq/29-eth0_g0_0-21swapper/007:34:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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