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2026-03-13 - 03:24

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 Fri Mar 13, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121860ksoftirqd/1121650irq/29-eth0_g0_20:35:110
121740ksoftirqd/1121750irq/30-eth0_g0_00:01:401
183552690sleep1121750irq/30-eth0_g0_00:28:571
121690ksoftirqd/1121750irq/30-eth0_g0_00:16:561
284502640sleep0121650irq/29-eth0_g0_22:55:320
278452600sleep1121750irq/30-eth0_g0_22:55:051
121600ksoftirqd/1121750irq/30-eth0_g0_22:34:400
121520ksoftirqd/1121750irq/30-eth0_g0_23:42:361
311342510sleep1121650irq/29-eth0_g0_20:55:121
121500ksoftirqd/1121750irq/30-eth0_g0_21:48:551
103702500sleep0121650irq/29-eth0_g0_21:43:420
121490ksoftirqd/1121750irq/30-eth0_g0_00:09:141
121490ksoftirqd/1121650irq/29-eth0_g0_23:25:141
121480ksoftirqd/1121750irq/30-eth0_g0_23:19:351
121480ksoftirqd/1121750irq/30-eth0_g0_23:19:351
121480ksoftirqd/1121750irq/30-eth0_g0_23:13:091
121480ksoftirqd/1121750irq/30-eth0_g0_23:13:091
121480ksoftirqd/1121750irq/30-eth0_g0_19:59:230
121470ksoftirqd/1121750irq/30-eth0_g0_21:12:581
121460ksoftirqd/1121750irq/30-eth0_g0_00:38:071
121450ksoftirqd/1121750irq/30-eth0_g0_22:24:031
121650440irq/29-eth0_g0_4375-21fgrep19:05:120
121650440irq/29-eth0_g0_31ksoftirqd/000:05:100
121440ksoftirqd/1121750irq/30-eth0_g0_23:47:161
121440ksoftirqd/1121650irq/29-eth0_g0_23:55:071
121440ksoftirqd/1121650irq/29-eth0_g0_23:39:211
498499436cyclictest5072-21unixbench_multi21:20:151
272432430sleep1121650irq/29-eth0_g0_22:50:451
121750430irq/30-eth0_g0_470-21kworker/1:122:02:201
121750430irq/30-eth0_g0_470-21kworker/1:122:02:201
121430ksoftirqd/1121750irq/30-eth0_g0_21:21:400
121430ksoftirqd/1121650irq/29-eth0_g0_21:50:461
121750420irq/30-eth0_g0_470-21kworker/1:123:07:301
121750420irq/30-eth0_g0_470-21kworker/1:121:36:461
121750420irq/30-eth0_g0_121ksoftirqd/123:50:371
121750420irq/30-eth0_g0_121ksoftirqd/123:50:371
121650420irq/29-eth0_g0_31ksoftirqd/021:35:130
121420ksoftirqd/1121650irq/29-eth0_g0_00:20:491
121750410irq/30-eth0_g0_470-21kworker/1:122:05:371
121650410irq/29-eth0_g0_31ksoftirqd/023:02:340
121650410irq/29-eth0_g0_13-21kworker/0:123:35:040
121650410irq/29-eth0_g0_13-21kworker/0:123:26:530
121650410irq/29-eth0_g0_0-21swapper/020:05:120
121410ksoftirqd/1121750irq/30-eth0_g0_22:19:070
498499401cyclictest27028-21grep20:39:531
121750400irq/30-eth0_g0_470-21kworker/1:122:17:301
121750400irq/30-eth0_g0_0-21swapper/122:29:011
121650400irq/29-eth0_g0_8742-21/usr/sbin/munin23:50:080
121650400irq/29-eth0_g0_8742-21/usr/sbin/munin23:50:080
121650400irq/29-eth0_g0_31ksoftirqd/022:45:120
121650400irq/29-eth0_g0_31ksoftirqd/022:27:510
121650400irq/29-eth0_g0_13-21kworker/0:123:12:000
121650400irq/29-eth0_g0_13-21kworker/0:123:12:000
121650400irq/29-eth0_g0_13-21kworker/0:122:51:340
121650400irq/29-eth0_g0_13-21kworker/0:121:25:050
121650400irq/29-eth0_g0_13-21kworker/0:121:25:050
121650400irq/29-eth0_g0_13-21kworker/0:100:35:080
121650400irq/29-eth0_g0_13-21kworker/0:100:32:070
121650400irq/29-eth0_g0_13-21kworker/0:100:25:490
121650400irq/29-eth0_g0_121ksoftirqd/122:07:380
121400ksoftirqd/1121650irq/29-eth0_g0_23:34:060
4984993927cyclictest13927-21ls19:45:071
498499391cyclictest8873-21sed19:25:051
498499391cyclictest16201-21df_abs19:55:051
121750390irq/30-eth0_g0_470-21kworker/1:122:30:481
121750390irq/30-eth0_g0_470-21kworker/1:100:31:461
121750390irq/30-eth0_g0_0-21swapper/100:14:311
121750390irq/30-eth0_g0_0-21swapper/100:14:311
121650390irq/29-eth0_g0_6891-21/usr/sbin/munin21:30:050
121650390irq/29-eth0_g0_6292-21/usr/sbin/munin23:40:100
121650390irq/29-eth0_g0_31ksoftirqd/022:00:150
121650390irq/29-eth0_g0_31ksoftirqd/022:00:150
121650390irq/29-eth0_g0_13-21kworker/0:123:21:060
121650390irq/29-eth0_g0_13-21kworker/0:123:16:330
121650390irq/29-eth0_g0_13-21kworker/0:123:16:330
121650390irq/29-eth0_g0_13-21kworker/0:122:23:110
121650390irq/29-eth0_g0_13-21kworker/0:121:46:330
121650390irq/29-eth0_g0_121ksoftirqd/100:23:360
121650390irq/29-eth0_g0_0-21swapper/019:20:070
121390ksoftirqd/1121750irq/30-eth0_g0_21:17:250
121390ksoftirqd/1121750irq/30-eth0_g0_21:10:160
121390ksoftirqd/1121750irq/30-eth0_g0_21:00:010
121390ksoftirqd/1121750irq/30-eth0_g0_20:59:260
121390ksoftirqd/1121750irq/30-eth0_g0_00:13:100
121390ksoftirqd/1121750irq/30-eth0_g0_00:13:100
121390ksoftirqd/1121750irq/30-eth0_g0_00:02:090
121390ksoftirqd/1121650irq/29-eth0_g0_22:45:101
121390ksoftirqd/1121650irq/29-eth0_g0_21:57:101
84052380sleep0121650irq/29-eth0_g0_23:47:030
498499381cyclictest6977-21grep19:15:151
498499381cyclictest151382sleep119:50:071
121750380irq/30-eth0_g0_3838-21/usr/sbin/munin19:05:101
121750380irq/30-eth0_g0_17387-21uptime22:10:141
121750380irq/30-eth0_g0_121ksoftirqd/122:42:131
121650380irq/29-eth0_g0_498399cyclictest20:30:130
121650380irq/29-eth0_g0_31ksoftirqd/000:15:140
121650380irq/29-eth0_g0_24772-21runrttasks22:40:270
121650380irq/29-eth0_g0_13-21kworker/0:123:55:320
121650380irq/29-eth0_g0_13-21kworker/0:122:12:300
121650380irq/29-eth0_g0_13-21kworker/0:121:54:530
121650380irq/29-eth0_g0_10339-21taskset19:30:090
498499372cyclictest6233-21latency_hist19:14:531
498499371cyclictest6068-21ntp_states21:25:121
498499371cyclictest6068-21ntp_states21:25:121
498499371cyclictest22637-21ps20:20:141
498499371cyclictest22637-21ps20:20:141
121750370irq/30-eth0_g0_470-21kworker/1:123:32:161
121750370irq/30-eth0_g0_470-21kworker/1:123:23:241
121750370irq/30-eth0_g0_470-21kworker/1:122:59:541
121750370irq/30-eth0_g0_470-21kworker/1:121:32:491
121750370irq/30-eth0_g0_25245-21runrttasks20:30:151
121750370irq/30-eth0_g0_11097-21latency_hist19:34:531
121650370irq/29-eth0_g0_30606-21proc_pri23:05:110
121650370irq/29-eth0_g0_22828-21unixbench_multi20:20:160
121650370irq/29-eth0_g0_22828-21unixbench_multi20:20:160
121650370irq/29-eth0_g0_2029-21runrttasks20:52:220
121650370irq/29-eth0_g0_2029-21runrttasks20:28:470
121650370irq/29-eth0_g0_2029-21runrttasks20:28:470
121650370irq/29-eth0_g0_2029-21runrttasks20:09:570
121650370irq/29-eth0_g0_2029-21runrttasks19:47:540
121650370irq/29-eth0_g0_2029-21runrttasks19:15:100
121650370irq/29-eth0_g0_17808-21taskset20:00:130
121650370irq/29-eth0_g0_1367-21chrt21:05:140
498499362cyclictest23475-21sed20:25:051
498499362cyclictest23475-21sed20:25:051
498499361cyclictest9473-21df_abs21:40:041
498499361cyclictest20370-21grep20:10:121
498499361cyclictest13025-21tail19:40:151
498499361cyclictest11706-21grep19:35:121
121750360irq/30-eth0_g0_470-21kworker/1:122:35:041
121750360irq/30-eth0_g0_470-21kworker/1:121:19:251
121650360irq/29-eth0_g0_2029-21runrttasks20:42:150
121650360irq/29-eth0_g0_2029-21runrttasks19:42:150
121650360irq/29-eth0_g0_13-21kworker/0:122:37:380
121650360irq/29-eth0_g0_13-21kworker/0:121:55:400
121650360irq/29-eth0_g0_11803-21unixbench_multi19:35:140
498499351cyclictest27740-21head20:40:131
498499351cyclictest20951-21cpu20:15:031
498499351cyclictest20951-21cpu20:15:031
498499351cyclictest0-21swapper/120:04:431
121650350irq/29-eth0_g0_8736-21egrep19:25:040
121650350irq/29-eth0_g0_21008-21df_abs20:15:040
121650350irq/29-eth0_g0_21008-21df_abs20:15:040
498499341cyclictest7962-21/usr/sbin/munin19:20:091
498499341cyclictest32321-21netstat21:00:081
498499341cyclictest30145-21unixbench_multi20:50:141
121750340irq/30-eth0_g0_28811-21rt-features20:45:131
121650340irq/29-eth0_g0_5730-21unixbench_multi19:10:140
121650340irq/29-eth0_g0_2029-21runrttasks20:47:500
121650340irq/29-eth0_g0_14978-21sed19:50:040
121650320irq/29-eth0_g0_1601-21runrttasks21:06:401
121750310irq/30-eth0_g0_0-21swapper/120:06:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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