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2025-05-13 - 12:13

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
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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 highest latencies:
System rack3slot5s.osadl.org (updated Sun May 11, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2981721650sleep0121650irq/29-eth0_g0_11:45:090
1542621330sleep0121650irq/29-eth0_g0_10:48:350
1211050ksoftirqd/1121750irq/30-eth0_g0_08:49:351
121720ksoftirqd/1121750irq/30-eth0_g0_11:11:391
237732600sleep1121750irq/30-eth0_g0_11:21:021
188892590sleep0121750irq/30-eth0_g0_11:01:110
318892550sleep1121750irq/30-eth0_g0_09:42:481
121750500irq/30-eth0_g0_250062sleep111:26:091
121750490irq/30-eth0_g0_13259-21sed08:24:411
121750460irq/30-eth0_g0_31ksoftirqd/009:54:340
121460ksoftirqd/1121750irq/30-eth0_g0_11:59:131
121460ksoftirqd/1121750irq/30-eth0_g0_09:29:341
121450ksoftirqd/1121750irq/30-eth0_g0_09:26:421
121450ksoftirqd/1121750irq/30-eth0_g0_09:26:421
121450ksoftirqd/1121650irq/29-eth0_g0_10:54:421
121450ksoftirqd/1121650irq/29-eth0_g0_08:18:101
250582440sleep0121650irq/29-eth0_g0_11:26:450
216912430sleep0121650irq/29-eth0_g0_11:14:240
121750430irq/30-eth0_g0_1219-21kworker/1:211:33:011
121650430irq/29-eth0_g0_13-21kworker/0:112:24:380
121430ksoftirqd/1121750irq/30-eth0_g0_12:38:161
121430ksoftirqd/1121750irq/30-eth0_g0_10:14:431
121430ksoftirqd/1121650irq/29-eth0_g0_11:44:411
121430ksoftirqd/1121650irq/29-eth0_g0_11:03:471
121430ksoftirqd/1121650irq/29-eth0_g0_10:34:220
121750420irq/30-eth0_g0_8472-21taskset12:31:061
121750420irq/30-eth0_g0_1219-21kworker/1:212:07:321
121650420irq/29-eth0_g0_121ksoftirqd/110:09:300
121420ksoftirqd/1121750irq/30-eth0_g0_11:29:320
121420ksoftirqd/1121650irq/29-eth0_g0_10:44:351
54032410sleep0121650irq/29-eth0_g0_10:05:410
2652599411cyclictest919-21sed07:34:401
121750410irq/30-eth0_g0_121ksoftirqd/110:38:171
121750410irq/30-eth0_g0_121ksoftirqd/109:58:421
121750410irq/30-eth0_g0_121ksoftirqd/109:14:331
121650410irq/29-eth0_g0_3435-21sed12:09:390
121650410irq/29-eth0_g0_31ksoftirqd/012:19:100
121650410irq/29-eth0_g0_25521-21df_abs07:04:330
121650410irq/29-eth0_g0_1893-21runrttasks09:23:470
121650410irq/29-eth0_g0_1893-21runrttasks09:23:470
121650410irq/29-eth0_g0_1455-21sendmail_mailtr09:49:420
121650410irq/29-eth0_g0_13-21kworker/0:112:07:410
121650410irq/29-eth0_g0_13-21kworker/0:109:27:180
121650410irq/29-eth0_g0_13-21kworker/0:109:27:180
121650410irq/29-eth0_g0_121ksoftirqd/109:34:570
121410ksoftirqd/1121650irq/29-eth0_g0_10:03:361
2652599401cyclictest2228-21sed07:39:481
121750400irq/30-eth0_g0_1219-21kworker/1:210:52:511
121750400irq/30-eth0_g0_121ksoftirqd/112:19:381
121650400irq/29-eth0_g0_13-21kworker/0:112:34:480
121650400irq/29-eth0_g0_13-21kworker/0:111:20:010
121650400irq/29-eth0_g0_13-21kworker/0:110:43:430
121650400irq/29-eth0_g0_13-21kworker/0:110:29:530
121650400irq/29-eth0_g0_121ksoftirqd/110:58:240
121400ksoftirqd/1121750irq/30-eth0_g0_12:01:401
121400ksoftirqd/1121750irq/30-eth0_g0_09:44:360
121400ksoftirqd/1121650irq/29-eth0_g0_12:12:071
121400ksoftirqd/1121650irq/29-eth0_g0_11:49:401
2652599391cyclictest23454-21diskmemload09:09:361
121750390irq/30-eth0_g0_1219-21kworker/1:212:27:521
121750390irq/30-eth0_g0_121ksoftirqd/111:06:461
121750390irq/30-eth0_g0_0-21swapper/110:05:451
121650390irq/29-eth0_g0_3774-21ntp_states09:59:440
121650390irq/29-eth0_g0_31720-21irqstats11:54:310
121650390irq/29-eth0_g0_1893-21runrttasks08:02:160
121650390irq/29-eth0_g0_13-21kworker/0:111:50:440
121390ksoftirqd/1121750irq/30-eth0_g0_12:22:290
121390ksoftirqd/1121750irq/30-eth0_g0_11:10:570
121390ksoftirqd/1121750irq/30-eth0_g0_11:06:290
121390ksoftirqd/1121750irq/30-eth0_g0_10:52:360
121390ksoftirqd/1121750irq/30-eth0_g0_10:24:510
121390ksoftirqd/1121750irq/30-eth0_g0_10:15:550
121390ksoftirqd/1121750irq/30-eth0_g0_09:10:310
121390ksoftirqd/1121750irq/30-eth0_g0_09:03:370
121390ksoftirqd/1121750irq/30-eth0_g0_08:51:000
121390ksoftirqd/1121750irq/30-eth0_g0_07:39:080
121390ksoftirqd/1121750irq/30-eth0_g0_07:20:560
121390ksoftirqd/1121650irq/29-eth0_g0_07:29:491
121390ksoftirqd/1121650irq/29-eth0_g0_07:27:021
2652599381cyclictest9555-21sed08:09:391
2652599381cyclictest8310-21grep08:04:401
2652599381cyclictest7106-21head07:59:401
121750380irq/30-eth0_g0_31ksoftirqd/009:39:500
121750380irq/30-eth0_g0_25515-21df_abs07:04:331
121750380irq/30-eth0_g0_1219-21kworker/1:210:19:421
121750380irq/30-eth0_g0_1219-21kworker/1:209:24:131
121750380irq/30-eth0_g0_1219-21kworker/1:209:24:131
121750380irq/30-eth0_g0_121ksoftirqd/111:18:191
121750380irq/30-eth0_g0_121ksoftirqd/110:40:171
121750380irq/30-eth0_g0_0-21swapper/112:15:311
121750380irq/30-eth0_g0_0-21swapper/109:47:051
121650380irq/29-eth0_g0_13-21kworker/0:112:30:410
121650380irq/29-eth0_g0_13-21kworker/0:112:02:090
121380ksoftirqd/1121750irq/30-eth0_g0_08:25:130
2652599372cyclictest10902-21ethtool10:29:321
2652599371cyclictest28050-21iostat11:39:331
2652599371cyclictest20114-21taskset08:54:341
2652599371cyclictest17745-21missed_timers08:44:361
121750370irq/30-eth0_g0_1219-21kworker/1:210:24:301
121750370irq/30-eth0_g0_1219-21kworker/1:209:37:391
121750370irq/30-eth0_g0_121ksoftirqd/111:37:531
121750370irq/30-eth0_g0_121ksoftirqd/109:49:181
121750370irq/30-eth0_g0_0-21swapper/107:09:311
121650370irq/29-eth0_g0_8356-21chrt08:04:410
121650370irq/29-eth0_g0_30668-21chrt07:24:340
121650370irq/29-eth0_g0_31ksoftirqd/011:43:020
121650370irq/29-eth0_g0_24945-21if_err_eth009:14:310
121650370irq/29-eth0_g0_2187-21tail07:39:470
121650370irq/29-eth0_g0_13-21kworker/0:110:21:440
121650370irq/29-eth0_g0_121ksoftirqd/110:09:541
2652599362cyclictest29330-21cat07:19:321
2652599361cyclictest23452-21sh09:09:171
121750360irq/30-eth0_g0_14469-21unixbench_singl08:29:441
121650360irq/29-eth0_g0_4048-21df07:49:340
121650360irq/29-eth0_g0_3890-21munin-run07:49:170
121650360irq/29-eth0_g0_26594-21/usr/sbin/munin11:34:370
121650360irq/29-eth0_g0_1893-21runrttasks07:11:070
121650360irq/29-eth0_g0_14246-21proc_pri08:29:420
121360ksoftirqd/1121750irq/30-eth0_g0_09:06:470
121360ksoftirqd/1121650irq/29-eth0_g0_09:31:510
2652599351cyclictest5129-21taskset07:54:171
2652599351cyclictest3297-21fgrep07:44:401
2652599350cyclictest0-21swapper/108:39:361
121750350irq/30-eth0_g0_15130-21sed08:34:331
121650350irq/29-eth0_g0_1893-21runrttasks08:49:020
121650350irq/29-eth0_g0_1893-21runrttasks07:33:360
121650350irq/29-eth0_g0_16284-21cpu08:39:350
121650350irq/29-eth0_g0_11870-21sendmail_mailqu08:19:400
121650350irq/29-eth0_g0_10066-21cat08:14:170
121650350irq/29-eth0_g0_0-21swapper/008:54:410
121350ksoftirqd/1121750irq/30-eth0_g0_07:54:210
2652599342cyclictest11487-21/usr/sbin/munin08:19:331
121650340irq/29-eth0_g0_799migration/007:14:390
121650340irq/29-eth0_g0_5424-21seq07:54:331
121650340irq/29-eth0_g0_15603-21sort08:34:430
121650340irq/29-eth0_g0_10107-21/usr/sbin/munin08:14:390
121750330irq/30-eth0_g0_27911-21sed07:14:291
26525993217cyclictest21265-21df_inode08:59:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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