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2026-07-26 - 14:05

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 Sun Jul 26, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1211050ksoftirqd/1121750irq/30-eth0_g0_10:58:181
1211000ksoftirqd/1121750irq/30-eth0_g0_08:51:401
64902950sleep0121750irq/30-eth0_g0_10:37:510
189742930sleep1121650irq/29-eth0_g0_11:30:061
65592750sleep1121650irq/29-eth0_g0_10:37:591
121750ksoftirqd/1121750irq/30-eth0_g0_07:32:471
121750ksoftirqd/1121750irq/30-eth0_g0_07:32:471
48462700sleep0121750irq/30-eth0_g0_10:32:410
305872650sleep0121750irq/30-eth0_g0_12:17:410
121550ksoftirqd/1121650irq/29-eth0_g0_09:43:310
121490ksoftirqd/1121750irq/30-eth0_g0_11:09:581
121490ksoftirqd/1121650irq/29-eth0_g0_10:45:300
121480ksoftirqd/1121750irq/30-eth0_g0_11:37:141
275242470sleep1121650irq/29-eth0_g0_12:04:461
121470ksoftirqd/1121750irq/30-eth0_g0_10:33:401
121470ksoftirqd/1121750irq/30-eth0_g0_10:03:091
176912460sleep1121750irq/30-eth0_g0_09:12:411
121460ksoftirqd/1121750irq/30-eth0_g0_11:06:581
121460ksoftirqd/1121750irq/30-eth0_g0_10:17:241
121460ksoftirqd/1121750irq/30-eth0_g0_09:27:251
121460ksoftirqd/1121750irq/30-eth0_g0_09:07:430
121460ksoftirqd/1121650irq/29-eth0_g0_08:24:061
121650450irq/29-eth0_g0_31ksoftirqd/010:22:540
121450ksoftirqd/1121750irq/30-eth0_g0_10:45:291
121650440irq/29-eth0_g0_28480-21grep12:07:470
121650440irq/29-eth0_g0_121ksoftirqd/110:53:310
121440ksoftirqd/1121750irq/30-eth0_g0_12:28:150
121440ksoftirqd/1121750irq/30-eth0_g0_11:16:141
121440ksoftirqd/1121750irq/30-eth0_g0_09:21:541
121440ksoftirqd/1121650irq/29-eth0_g0_07:38:501
121750430irq/30-eth0_g0_1219-21kworker/1:212:23:431
121750430irq/30-eth0_g0_1219-21kworker/1:212:20:001
121750430irq/30-eth0_g0_1219-21kworker/1:211:22:371
121650430irq/29-eth0_g0_31ksoftirqd/011:10:220
121650430irq/29-eth0_g0_16130-21latency_hist09:07:260
121430ksoftirqd/1121750irq/30-eth0_g0_10:28:460
121430ksoftirqd/1121650irq/29-eth0_g0_10:21:120
121430ksoftirqd/1121650irq/29-eth0_g0_09:58:270
121750420irq/30-eth0_g0_1219-21kworker/1:212:35:411
121750420irq/30-eth0_g0_1219-21kworker/1:211:38:461
121650420irq/29-eth0_g0_1964-21runrttasks07:02:280
121650420irq/29-eth0_g0_121ksoftirqd/109:52:520
121420ksoftirqd/1121650irq/29-eth0_g0_07:17:391
121750410irq/30-eth0_g0_121ksoftirqd/110:55:441
121650410irq/29-eth0_g0_31ksoftirqd/009:25:000
121650410irq/29-eth0_g0_23239-21memory11:47:430
121650410irq/29-eth0_g0_0-21swapper/011:30:560
121410ksoftirqd/1121750irq/30-eth0_g0_11:40:300
121410ksoftirqd/1121750irq/30-eth0_g0_09:14:050
121650400irq/29-eth0_g0_22370-21unixbench_multi11:42:480
121650400irq/29-eth0_g0_13-21kworker/0:110:47:380
121650400irq/29-eth0_g0_13-21kworker/0:110:17:160
121650400irq/29-eth0_g0_13-21kworker/0:109:51:250
121650400irq/29-eth0_g0_13-21kworker/0:109:42:060
121650400irq/29-eth0_g0_13-21kworker/0:109:33:480
121650400irq/29-eth0_g0_11833-21sendmail_mailqu08:47:460
121400ksoftirqd/1121650irq/29-eth0_g0_10:22:441
121400ksoftirqd/1121650irq/29-eth0_g0_10:02:261
1918799391cyclictest16097-21diskmemload09:07:501
121750390irq/30-eth0_g0_1219-21kworker/1:209:56:231
121750390irq/30-eth0_g0_1219-21kworker/1:209:48:091
121750390irq/30-eth0_g0_1219-21kworker/1:209:45:001
121750390irq/30-eth0_g0_1219-21kworker/1:209:28:311
121750390irq/30-eth0_g0_121ksoftirqd/111:46:361
121750390irq/30-eth0_g0_121ksoftirqd/110:29:481
121750390irq/30-eth0_g0_121ksoftirqd/109:33:001
121750390irq/30-eth0_g0_0-21swapper/111:52:101
121650390irq/29-eth0_g0_31ksoftirqd/010:57:440
121650390irq/29-eth0_g0_18786-21runrttasks07:02:541
121650390irq/29-eth0_g0_14910-21wc11:12:480
121650390irq/29-eth0_g0_13-21kworker/0:111:58:090
121650390irq/29-eth0_g0_13-21kworker/0:111:35:450
121650390irq/29-eth0_g0_121ksoftirqd/112:34:210
121390ksoftirqd/1121750irq/30-eth0_g0_12:26:140
121390ksoftirqd/1121750irq/30-eth0_g0_12:15:050
121390ksoftirqd/1121750irq/30-eth0_g0_11:56:450
121390ksoftirqd/1121750irq/30-eth0_g0_09:20:210
121390ksoftirqd/1121750irq/30-eth0_g0_08:39:510
121390ksoftirqd/1121750irq/30-eth0_g0_08:37:050
121390ksoftirqd/1121750irq/30-eth0_g0_08:28:350
121390ksoftirqd/1121750irq/30-eth0_g0_08:23:100
121390ksoftirqd/1121750irq/30-eth0_g0_07:56:110
121390ksoftirqd/1121750irq/30-eth0_g0_07:50:240
121390ksoftirqd/1121750irq/30-eth0_g0_07:29:300
121390ksoftirqd/1121750irq/30-eth0_g0_07:29:300
121390ksoftirqd/1121650irq/29-eth0_g0_11:19:550
1918799383cyclictest8367-21df_abs10:47:381
1918799382cyclictest14928-21cat09:02:261
1918799381cyclictest82552sleep108:32:471
1918799381cyclictest19917-21grep07:07:481
121750380irq/30-eth0_g0_1219-21kworker/1:212:28:491
121750380irq/30-eth0_g0_121ksoftirqd/111:18:191
121650380irq/29-eth0_g0_13-21kworker/0:111:26:550
121650380irq/29-eth0_g0_13-21kworker/0:110:09:050
121380ksoftirqd/1121750irq/30-eth0_g0_10:05:480
121380ksoftirqd/1121750irq/30-eth0_g0_08:42:390
121380ksoftirqd/1121750irq/30-eth0_g0_07:32:500
121380ksoftirqd/1121750irq/30-eth0_g0_07:32:500
1918799373cyclictest2093-21snmpd08:04:241
1918799372cyclictest29590-21grep07:47:461
1918799371cyclictest7053-21grep08:27:501
1918799371cyclictest11245-21latency_hist08:47:271
121750370irq/30-eth0_g0_1219-21kworker/1:212:15:131
121750370irq/30-eth0_g0_0-21swapper/112:10:181
121750370irq/30-eth0_g0_0-21swapper/110:18:541
121650370irq/29-eth0_g0_4670-21unixbench_singl08:17:470
121650370irq/29-eth0_g0_12610-21unixbench_singl11:02:480
121370ksoftirqd/1121650irq/29-eth0_g0_07:44:211
1918799362cyclictest30415-21df_abs07:52:401
1918799362cyclictest1983-21/usr/sbin/munin07:58:561
1918799361cyclictest4270-21sort08:17:411
1918799361cyclictest24057-21ps09:37:471
1918799361cyclictest206572sleep107:12:381
1918799361cyclictest12991-21chrt08:52:491
121750360irq/30-eth0_g0_26039-21unixbench_multi11:57:481
121750360irq/30-eth0_g0_1219-21kworker/1:211:55:071
121750360irq/30-eth0_g0_1219-21kworker/1:210:07:501
121650360irq/29-eth0_g0_23478-21sendmail_mailqu07:22:460
121650360irq/29-eth0_g0_1964-21runrttasks12:02:380
121650360irq/29-eth0_g0_1964-21runrttasks07:58:250
121650360irq/29-eth0_g0_13-21kworker/0:109:27:500
1918799351cyclictest23074-21df_abs07:22:391
1918799351cyclictest15349-21chrt09:02:421
121750350irq/30-eth0_g0_9524-21unixbench_multi08:37:471
121750350irq/30-eth0_g0_2844-21df_abs08:12:381
121650350irq/29-eth0_g0_505-21taskset08:02:420
121650350irq/29-eth0_g0_28391-21awk07:42:450
121650350irq/29-eth0_g0_13-21kworker/0:107:07:490
121350ksoftirqd/1121750irq/30-eth0_g0_08:53:240
121350ksoftirqd/1121650irq/29-eth0_g0_08:07:381
121750340irq/30-eth0_g0_24703-21sendmail_mailqu07:27:441
121750340irq/30-eth0_g0_24703-21sendmail_mailqu07:27:441
121650340irq/29-eth0_g0_20634-21grep07:12:380
121650340irq/29-eth0_g0_1964-21runrttasks09:01:570
121650340irq/29-eth0_g0_1964-21runrttasks07:38:290
121650340irq/29-eth0_g0_1726-21/usr/sbin/munin08:07:400
121650340irq/29-eth0_g0_0-21swapper/007:17:460
121650330irq/29-eth0_g0_2846-21df_abs08:12:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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