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2026-07-27 - 09:33

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 Jul 27, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
301921430sleep1121650irq/29-eth0_g0_23:49:531
121980ksoftirqd/1121750irq/30-eth0_g0_20:33:511
70142910sleep1121650irq/29-eth0_g0_00:07:381
121830ksoftirqd/1121750irq/30-eth0_g0_22:01:460
121830ksoftirqd/1121750irq/30-eth0_g0_22:01:460
141802710sleep1121750irq/30-eth0_g0_22:22:461
54322690sleep0121650irq/29-eth0_g0_23:59:250
121670ksoftirqd/1305022sleep021:17:440
46772650chrt121650irq/29-eth0_g0_21:43:540
42332650sleep1121750irq/30-eth0_g0_23:54:441
121550ksoftirqd/1121750irq/30-eth0_g0_19:02:411
58242540sleep0121750irq/30-eth0_g0_21:47:590
121520ksoftirqd/1121650irq/29-eth0_g0_23:07:210
104252520sleep0121650irq/29-eth0_g0_00:20:220
121490ksoftirqd/1121750irq/30-eth0_g0_19:47:571
121490ksoftirqd/1121750irq/30-eth0_g0_19:02:420
121480ksoftirqd/1121650irq/29-eth0_g0_20:27:211
209202470sleep1121650irq/29-eth0_g0_22:52:221
121470ksoftirqd/1121750irq/30-eth0_g0_21:10:061
121470ksoftirqd/1121650irq/29-eth0_g0_21:50:251
121470ksoftirqd/1121650irq/29-eth0_g0_00:36:401
121460ksoftirqd/1121750irq/30-eth0_g0_22:00:531
121460ksoftirqd/1121750irq/30-eth0_g0_22:00:531
121460ksoftirqd/1121650irq/29-eth0_g0_21:30:060
121460ksoftirqd/1121650irq/29-eth0_g0_19:38:161
121460ksoftirqd/1121650irq/29-eth0_g0_19:26:071
133112450sleep0121650irq/29-eth0_g0_22:19:260
121450ksoftirqd/1121750irq/30-eth0_g0_22:13:311
121450ksoftirqd/1121650irq/29-eth0_g0_22:27:481
121450ksoftirqd/1121650irq/29-eth0_g0_21:14:241
121450ksoftirqd/1121650irq/29-eth0_g0_00:25:560
121450ksoftirqd/1121650irq/29-eth0_g0_00:05:261
121440ksoftirqd/1121750irq/30-eth0_g0_22:35:121
121440ksoftirqd/1121650irq/29-eth0_g0_19:45:391
121440ksoftirqd/1121650irq/29-eth0_g0_19:28:371
104532440sleep1121650irq/29-eth0_g0_00:20:431
121750430irq/30-eth0_g0_1219-21kworker/1:222:42:461
121650430irq/29-eth0_g0_3115-21processes21:37:450
121430ksoftirqd/1121750irq/30-eth0_g0_23:22:050
121430ksoftirqd/1121750irq/30-eth0_g0_21:46:471
121430ksoftirqd/1121650irq/29-eth0_g0_23:22:291
121430ksoftirqd/1121650irq/29-eth0_g0_22:03:231
121430ksoftirqd/1121650irq/29-eth0_g0_19:18:481
66132420chrt121750irq/30-eth0_g0_21:52:401
121750420irq/30-eth0_g0_1219-21kworker/1:222:57:011
121750420irq/30-eth0_g0_1219-21kworker/1:200:26:031
121650420irq/29-eth0_g0_1964-21runrttasks23:32:130
121650420irq/29-eth0_g0_1964-21runrttasks23:32:130
121650420irq/29-eth0_g0_13-21kworker/0:122:44:310
121650420irq/29-eth0_g0_121ksoftirqd/122:07:440
121650420irq/29-eth0_g0_121ksoftirqd/121:52:400
121650420irq/29-eth0_g0_0-21swapper/000:27:380
121650410irq/29-eth0_g0_29446-21mailstats21:12:470
121650410irq/29-eth0_g0_13-21kworker/0:123:27:110
121410ksoftirqd/1121650irq/29-eth0_g0_23:16:140
3053699401cyclictest1918-21fgrep21:32:471
3053699401cyclictest0-21swapper/121:23:071
121750400irq/30-eth0_g0_121ksoftirqd/123:39:231
121750400irq/30-eth0_g0_121ksoftirqd/100:31:261
121650400irq/29-eth0_g0_3053599cyclictest22:37:330
121650400irq/29-eth0_g0_2488-21/usr/sbin/munin23:47:410
121650400irq/29-eth0_g0_23376-21unixbench_multi20:47:460
121400ksoftirqd/1121750irq/30-eth0_g0_23:39:360
121400ksoftirqd/1121750irq/30-eth0_g0_23:02:220
121400ksoftirqd/1121750irq/30-eth0_g0_19:25:050
3053699391cyclictest23265-21processes20:47:441
121750390irq/30-eth0_g0_1219-21kworker/1:223:35:451
121750390irq/30-eth0_g0_1219-21kworker/1:222:19:211
121750390irq/30-eth0_g0_121ksoftirqd/123:13:501
121750390irq/30-eth0_g0_0-21swapper/121:42:221
121650390irq/29-eth0_g0_31ksoftirqd/022:28:290
121650390irq/29-eth0_g0_31ksoftirqd/021:24:380
121650390irq/29-eth0_g0_31ksoftirqd/020:12:470
121650390irq/29-eth0_g0_13-21kworker/0:123:33:000
121650390irq/29-eth0_g0_13-21kworker/0:100:32:270
121390ksoftirqd/1121750irq/30-eth0_g0_23:42:490
121390ksoftirqd/1121750irq/30-eth0_g0_23:09:280
121390ksoftirqd/1121750irq/30-eth0_g0_22:14:470
121390ksoftirqd/1121750irq/30-eth0_g0_22:05:570
121390ksoftirqd/1121750irq/30-eth0_g0_20:28:130
121390ksoftirqd/1121650irq/29-eth0_g0_23:29:411
121390ksoftirqd/1121650irq/29-eth0_g0_23:29:411
121390ksoftirqd/1121650irq/29-eth0_g0_23:08:491
121390ksoftirqd/1121650irq/29-eth0_g0_21:05:451
3053699381cyclictest277542sleep123:17:471
3053699381cyclictest27576-21diskmemload22:57:441
3053699381cyclictest23681-21ethtool23:02:401
3053699381cyclictest10663-21unixbench_singl22:07:471
121750380irq/30-eth0_g0_1219-21kworker/1:221:28:281
121750380irq/30-eth0_g0_121ksoftirqd/123:59:441
121650380irq/29-eth0_g0_31ksoftirqd/000:07:380
121650380irq/29-eth0_g0_2072-21unixbench_singl21:32:490
121650380irq/29-eth0_g0_13-21kworker/0:122:52:540
121650380irq/29-eth0_g0_13-21kworker/0:100:14:140
121650380irq/29-eth0_g0_13-21kworker/0:100:03:190
121650380irq/29-eth0_g0_121ksoftirqd/122:24:470
121380ksoftirqd/1121750irq/30-eth0_g0_22:51:500
3053699372cyclictest17410-21sed22:37:371
3053699371cyclictest24573-21timerandwakeup20:52:461
3053699371cyclictest18388-21sendmail_mailst20:27:441
121750370irq/30-eth0_g0_121ksoftirqd/121:19:501
121650370irq/29-eth0_g0_7427-21unixbench_multi19:42:470
121650370irq/29-eth0_g0_3667-21runrttasks19:27:450
121650370irq/29-eth0_g0_31154-21zcat19:07:440
121650370irq/29-eth0_g0_1964-21runrttasks21:05:390
121650370irq/29-eth0_g0_13-21kworker/0:122:37:070
121650370irq/29-eth0_g0_13-21kworker/0:121:07:470
121370ksoftirqd/1121750irq/30-eth0_g0_19:48:550
3053699361cyclictest10865-21awk19:57:421
121750360irq/30-eth0_g0_1219-21kworker/1:223:43:091
121750360irq/30-eth0_g0_1219-21kworker/1:200:12:331
121650360irq/29-eth0_g0_3053599cyclictest19:37:380
121650360irq/29-eth0_g0_25589-21ntp_kernel_pll_20:57:390
121650360irq/29-eth0_g0_24563-21sort20:52:460
121650360irq/29-eth0_g0_1964-21runrttasks19:53:210
121650360irq/29-eth0_g0_1964-21runrttasks19:53:210
121650360irq/29-eth0_g0_1964-21runrttasks19:14:590
121650360irq/29-eth0_g0_15918-21grep20:17:440
121650360irq/29-eth0_g0_12094-21ntpdc20:02:430
121650360irq/29-eth0_g0_1022-21grep19:17:410
121360ksoftirqd/1121650irq/29-eth0_g0_21:02:251
3053699351cyclictest43502sleep119:32:381
3053699351cyclictest32561-21grep19:12:481
3053699351cyclictest205372sleep120:37:401
3053699351cyclictest14798-21grep20:12:471
3053699351cyclictest13129-21chrt20:07:401
3053699351cyclictest12877-21cat20:07:251
121650350irq/29-eth0_g0_4615-21latency19:32:410
121650350irq/29-eth0_g0_31ksoftirqd/023:54:320
121650350irq/29-eth0_g0_21470-21sort20:42:250
121650350irq/29-eth0_g0_16888-21ls20:22:390
121650350irq/29-eth0_g0_13612-21unixbench_singl20:07:480
121650350irq/29-eth0_g0_11624-21latency_hist20:02:250
3053699341cyclictest31163-21find19:07:451
3053699341cyclictest22048-21rt-features20:42:431
121650340irq/29-eth0_g0_21596-21df_abs20:42:350
121650340irq/29-eth0_g0_19540-21ps20:32:450
121750330irq/30-eth0_g0_1099migration/119:52:391
121750330irq/30-eth0_g0_1099migration/119:52:391
121750320irq/30-eth0_g0_15453-21df20:17:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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