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2026-03-11 - 15:20

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 Wed Mar 11, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2169121440sleep1121650irq/29-eth0_g0_09:40:211
2292421240sleep1121650irq/29-eth0_g0_12:00:051
3179421110sleep0121650irq/29-eth0_g0_10:23:520
121810ksoftirqd/1121750irq/30-eth0_g0_12:25:361
121740ksoftirqd/1121750irq/30-eth0_g0_11:15:190
121730ksoftirqd/1121750irq/30-eth0_g0_09:27:061
218182580sleep0121750irq/30-eth0_g0_09:41:480
6102570sleep1121650irq/29-eth0_g0_10:29:231
121560ksoftirqd/1121750irq/30-eth0_g0_10:00:151
121560ksoftirqd/1121750irq/30-eth0_g0_10:00:151
121520ksoftirqd/1121750irq/30-eth0_g0_09:20:391
121480ksoftirqd/1121750irq/30-eth0_g0_10:41:571
121750470irq/30-eth0_g0_121ksoftirqd/112:20:171
121460ksoftirqd/1121750irq/30-eth0_g0_09:14:401
121460ksoftirqd/1121650irq/29-eth0_g0_12:07:251
182492450sleep0121650irq/29-eth0_g0_09:28:040
121650450irq/29-eth0_g0_15976-21unixbench_multi07:05:170
121650450irq/29-eth0_g0_15976-21unixbench_multi07:05:170
121450ksoftirqd/1121750irq/30-eth0_g0_12:13:501
121450ksoftirqd/1121650irq/29-eth0_g0_11:23:071
121450ksoftirqd/1121650irq/29-eth0_g0_10:23:121
121750440irq/30-eth0_g0_470-21kworker/1:111:35:551
121440ksoftirqd/1121650irq/29-eth0_g0_10:35:171
121440ksoftirqd/1121650irq/29-eth0_g0_09:30:001
16472430sleep0121650irq/29-eth0_g0_10:31:580
121750430irq/30-eth0_g0_244632sleep109:54:051
121750430irq/30-eth0_g0_121ksoftirqd/108:25:091
121650430irq/29-eth0_g0_31ksoftirqd/011:58:030
121650430irq/29-eth0_g0_31ksoftirqd/010:05:510
121430ksoftirqd/1121750irq/30-eth0_g0_10:07:171
121430ksoftirqd/1121650irq/29-eth0_g0_08:00:211
121430ksoftirqd/1121650irq/29-eth0_g0_08:00:211
121750420irq/30-eth0_g0_20607-21if_eth011:50:100
121750420irq/30-eth0_g0_127142sleep111:17:091
121650420irq/29-eth0_g0_15533-21/usr/sbin/munin09:15:190
121650420irq/29-eth0_g0_121ksoftirqd/111:28:200
121420ksoftirqd/1121650irq/29-eth0_g0_11:11:271
121420ksoftirqd/1121650irq/29-eth0_g0_10:36:110
121750410irq/30-eth0_g0_121ksoftirqd/111:44:131
121650410irq/29-eth0_g0_1567-21latency08:20:100
121650410irq/29-eth0_g0_1567-21latency08:20:100
121650410irq/29-eth0_g0_13-21kworker/0:112:01:470
121650410irq/29-eth0_g0_13-21kworker/0:110:44:230
121410ksoftirqd/1121750irq/30-eth0_g0_12:10:050
121410ksoftirqd/1121750irq/30-eth0_g0_07:19:130
121410ksoftirqd/1121650irq/29-eth0_g0_12:35:111
121410ksoftirqd/1121650irq/29-eth0_g0_10:48:100
121410ksoftirqd/1121650irq/29-eth0_g0_09:45:181
121410ksoftirqd/1121650irq/29-eth0_g0_07:15:271
121750400irq/30-eth0_g0_470-21kworker/1:110:11:331
121750400irq/30-eth0_g0_273672sleep112:16:221
121750400irq/30-eth0_g0_121ksoftirqd/110:47:521
121650400irq/29-eth0_g0_31ksoftirqd/011:06:230
121650400irq/29-eth0_g0_27119-21cat12:15:160
121650400irq/29-eth0_g0_13-21kworker/0:111:37:360
121650400irq/29-eth0_g0_13-21kworker/0:111:23:420
121650400irq/29-eth0_g0_13-21kworker/0:111:11:110
121650400irq/29-eth0_g0_13-21kworker/0:109:38:140
121650400irq/29-eth0_g0_13-21kworker/0:109:20:110
121650400irq/29-eth0_g0_0-21swapper/010:00:100
121650400irq/29-eth0_g0_0-21swapper/010:00:100
121400ksoftirqd/1121750irq/30-eth0_g0_12:30:330
121400ksoftirqd/1121750irq/30-eth0_g0_10:14:200
121400ksoftirqd/1121750irq/30-eth0_g0_08:50:080
121400ksoftirqd/1121750irq/30-eth0_g0_08:49:070
121400ksoftirqd/1121750irq/30-eth0_g0_08:17:330
121400ksoftirqd/1121750irq/30-eth0_g0_08:05:460
121400ksoftirqd/1121750irq/30-eth0_g0_07:58:140
121400ksoftirqd/1121750irq/30-eth0_g0_07:49:390
121400ksoftirqd/1121750irq/30-eth0_g0_07:40:020
1650199391cyclictest9151-21ps08:50:131
121750390irq/30-eth0_g0_470-21kworker/1:111:30:291
121750390irq/30-eth0_g0_470-21kworker/1:110:53:021
121750390irq/30-eth0_g0_470-21kworker/1:110:53:021
121750390irq/30-eth0_g0_470-21kworker/1:109:57:341
121650390irq/29-eth0_g0_3918-21df08:30:070
121650390irq/29-eth0_g0_31ksoftirqd/011:49:300
121650390irq/29-eth0_g0_31ksoftirqd/009:57:190
121650390irq/29-eth0_g0_24688-21timerandwakeup12:05:160
121650390irq/29-eth0_g0_2029-21runrttasks10:53:550
121650390irq/29-eth0_g0_2029-21runrttasks10:53:550
121650390irq/29-eth0_g0_2029-21runrttasks08:42:070
121650390irq/29-eth0_g0_16207-21unixbench_singl11:30:160
121650390irq/29-eth0_g0_13-21kworker/0:112:39:430
121650390irq/29-eth0_g0_13-21kworker/0:112:20:220
121650390irq/29-eth0_g0_121ksoftirqd/112:33:441
121390ksoftirqd/1121750irq/30-eth0_g0_11:00:210
121390ksoftirqd/1121750irq/30-eth0_g0_09:50:400
121390ksoftirqd/1121750irq/30-eth0_g0_08:39:270
121390ksoftirqd/1121650irq/29-eth0_g0_10:27:490
121390ksoftirqd/1121650irq/29-eth0_g0_09:15:151
121390ksoftirqd/1121650irq/29-eth0_g0_09:05:381
121390ksoftirqd/1121650irq/29-eth0_g0_08:23:421
121390ksoftirqd/1121650irq/29-eth0_g0_08:23:421
121390ksoftirqd/1121650irq/29-eth0_g0_08:14:461
121390ksoftirqd/1121650irq/29-eth0_g0_07:54:341
121390ksoftirqd/1121650irq/29-eth0_g0_07:46:271
1650199382cyclictest22779-21grep11:59:561
1650199381cyclictest30534-21proc_pri08:05:151
1650199381cyclictest23411-21unixbench_singl07:35:191
1650199381cyclictest195902sleep111:45:131
121750380irq/30-eth0_g0_470-21kworker/1:111:50:121
121750380irq/30-eth0_g0_121ksoftirqd/111:03:531
121750380irq/30-eth0_g0_121ksoftirqd/109:37:201
121650380irq/29-eth0_g0_9999-21unixbench_multi11:05:201
121650380irq/29-eth0_g0_29455-21ps12:25:140
121650380irq/29-eth0_g0_17234-21unixbench_multi07:10:180
121650380irq/29-eth0_g0_17234-21unixbench_multi07:10:180
121650380irq/29-eth0_g0_12662-21load09:05:130
121650380irq/29-eth0_g0_10449-21find08:55:150
121380ksoftirqd/1121750irq/30-eth0_g0_10:15:400
121380ksoftirqd/1121650irq/29-eth0_g0_11:27:581
1650199371cyclictest6564-21missed_timers08:40:111
1650199371cyclictest20560-21memory07:25:131
1650199371cyclictest11820-21grep09:00:171
1650199371cyclictest0-21swapper/107:30:071
121750370irq/30-eth0_g0_121ksoftirqd/110:30:301
121650370irq/29-eth0_g0_31ksoftirqd/009:32:340
121650370irq/29-eth0_g0_14512-21sshd09:12:250
121650370irq/29-eth0_g0_13-21kworker/0:110:55:300
121650370irq/29-eth0_g0_13-21kworker/0:109:45:150
121370ksoftirqd/1121650irq/29-eth0_g0_08:39:201
121370ksoftirqd/1121650irq/29-eth0_g0_07:09:571
121370ksoftirqd/1121650irq/29-eth0_g0_07:09:571
1650199362cyclictest241762sleep107:40:111
1650199361cyclictest7641-21/usr/sbin/munin08:45:081
1650199361cyclictest0-21swapper/108:55:111
121750360irq/30-eth0_g0_470-21kworker/1:110:55:101
121650360irq/29-eth0_g0_2029-21runrttasks09:02:110
121650360irq/29-eth0_g0_13-21kworker/0:111:42:010
121360ksoftirqd/117235-21unixbench_multi07:10:181
121360ksoftirqd/117235-21unixbench_multi07:10:181
121360ksoftirqd/1121750irq/30-eth0_g0_07:24:420
1650199351cyclictest4184-21ntp_states08:30:131
1650199351cyclictest327382sleep108:15:091
1650199351cyclictest28338-21uptime07:55:191
121750350irq/30-eth0_g0_470-21kworker/1:110:17:381
121650350irq/29-eth0_g0_3229-21unixbench_singl08:25:160
121650350irq/29-eth0_g0_23140-21taskset07:35:150
121650350irq/29-eth0_g0_2029-21runrttasks08:10:500
121650350irq/29-eth0_g0_0-21swapper/007:34:560
121650340irq/29-eth0_g0_29229-21awk08:00:120
121650340irq/29-eth0_g0_29229-21awk08:00:120
121750330irq/30-eth0_g0_19337-21missed_timers07:20:121
121650320irq/29-eth0_g0_26546-21sed07:50:090
121650320irq/29-eth0_g0_21434-21grep07:29:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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