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2026-06-16 - 16:37

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 Tue Jun 16, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2728121350sleep0121650irq/29-eth0_g0_11:22:200
1602721080sleep1121650irq/29-eth0_g0_10:34:541
121900ksoftirqd/1121750irq/30-eth0_g0_08:34:241
121840ksoftirqd/1121650irq/29-eth0_g0_08:29:240
74892630sleep1121650irq/29-eth0_g0_10:00:311
121610ksoftirqd/1121750irq/30-eth0_g0_12:05:320
121570ksoftirqd/1121750irq/30-eth0_g0_09:25:571
121650470irq/29-eth0_g0_121ksoftirqd/111:19:191
121470ksoftirqd/1121750irq/30-eth0_g0_09:39:380
121470ksoftirqd/1121650irq/29-eth0_g0_10:14:201
29659994634cyclictest4849-21df_abs07:39:151
29659994632cyclictest1708-21sed07:24:251
121460ksoftirqd/1121750irq/30-eth0_g0_12:06:191
121750450irq/30-eth0_g0_1219-21kworker/1:211:43:491
121750450irq/30-eth0_g0_121ksoftirqd/111:34:241
121750450irq/30-eth0_g0_121ksoftirqd/109:09:231
121650450irq/29-eth0_g0_174782sleep010:42:320
121450ksoftirqd/1121750irq/30-eth0_g0_09:53:391
29659994431cyclictest8457-21swap10:04:251
29659994431cyclictest3244-21wc09:44:161
29659994431cyclictest2871-21ntp_states11:54:201
29659994431cyclictest25465-21ntp_states11:14:211
29659994427cyclictest1964-21runrttasks10:12:411
219162440sleep0121650irq/29-eth0_g0_10:59:220
121750440irq/30-eth0_g0_1219-21kworker/1:211:53:271
121750440irq/30-eth0_g0_1219-21kworker/1:210:30:251
121750440irq/30-eth0_g0_121ksoftirqd/111:44:341
121440ksoftirqd/1121750irq/30-eth0_g0_12:18:130
121750430irq/30-eth0_g0_1219-21kworker/1:212:26:361
121750430irq/30-eth0_g0_1219-21kworker/1:212:12:001
121750430irq/30-eth0_g0_1219-21kworker/1:211:06:521
121750430irq/30-eth0_g0_1219-21kworker/1:210:46:081
121430ksoftirqd/1240242sleep011:09:140
29659994229cyclictest7610-21iostat12:14:171
29659994229cyclictest22409-21/usr/sbin/munin08:49:221
29659994229cyclictest11243-21/usr/sbin/munin08:04:211
121750420irq/30-eth0_g0_1219-21kworker/1:210:20:261
121750420irq/30-eth0_g0_121ksoftirqd/109:36:391
121650420irq/29-eth0_g0_209132sleep010:54:400
29659994129cyclictest886-21munin-run07:24:031
29659994129cyclictest1738-21/usr/sbin/munin09:39:231
29659994127cyclictest29036-21load11:29:161
121650410irq/29-eth0_g0_13-21kworker/0:110:28:240
121650410irq/29-eth0_g0_13-21kworker/0:110:28:240
121650410irq/29-eth0_g0_13-21kworker/0:109:31:060
61962400sleep0121650irq/29-eth0_g0_09:54:430
29659994027cyclictest26710-21diskmemload10:24:191
29659994027cyclictest26710-21diskmemload10:24:191
29659994025cyclictest24985-21sed08:59:241
121750400irq/30-eth0_g0_1219-21kworker/1:212:31:441
121750400irq/30-eth0_g0_1219-21kworker/1:212:19:421
121750400irq/30-eth0_g0_1219-21kworker/1:212:19:421
121750400irq/30-eth0_g0_121ksoftirqd/110:53:311
121750400irq/30-eth0_g0_113212sleep010:17:150
121650400irq/29-eth0_g0_7224-21grep07:49:150
121650400irq/29-eth0_g0_7224-21grep07:49:150
121650400irq/29-eth0_g0_13-21kworker/0:112:27:290
121650400irq/29-eth0_g0_13-21kworker/0:110:02:010
121650400irq/29-eth0_g0_0-21swapper/011:58:410
121400ksoftirqd/128726-21/usr/sbin/munin07:04:161
121400ksoftirqd/124471-21unixbench_multi11:09:231
29659993927cyclictest5495-21/usr/sbin/munin09:54:141
29659993927cyclictest31576-21timerandwakeup07:14:221
29659993927cyclictest2713-21/usr/sbin/munin07:29:211
121750390irq/30-eth0_g0_121ksoftirqd/112:02:021
121650390irq/29-eth0_g0_26713-21seq09:09:020
121650390irq/29-eth0_g0_19088-21df_inode10:49:160
121650390irq/29-eth0_g0_13-21kworker/0:112:36:150
121650390irq/29-eth0_g0_13-21kworker/0:112:32:580
121650390irq/29-eth0_g0_0-21swapper/010:36:210
121390ksoftirqd/1121650irq/29-eth0_g0_12:36:081
29659993826cyclictest7846-21grep07:49:251
29659993826cyclictest7846-21grep07:49:251
29659993826cyclictest17659-21grep08:29:251
29659993826cyclictest13733-21taskset08:14:221
29659993824cyclictest25947-21ntp_kernel_err09:04:201
29659993824cyclictest10235-21grep07:59:241
121750380irq/30-eth0_g0_121ksoftirqd/111:01:011
121750380irq/30-eth0_g0_121ksoftirqd/110:55:041
121650380irq/29-eth0_g0_28582-21df_abs07:04:140
121650380irq/29-eth0_g0_1964-21runrttasks07:15:050
121650380irq/29-eth0_g0_1964-21runrttasks07:13:020
121650380irq/29-eth0_g0_132kworker/0:108:49:200
121650380irq/29-eth0_g0_13-21kworker/0:111:39:480
121650380irq/29-eth0_g0_13-21kworker/0:111:27:090
121650380irq/29-eth0_g0_13-21kworker/0:111:27:090
121650380irq/29-eth0_g0_13-21kworker/0:110:31:360
121650380irq/29-eth0_g0_13-21kworker/0:110:21:020
121650380irq/29-eth0_g0_13-21kworker/0:110:13:210
121650380irq/29-eth0_g0_13-21kworker/0:110:04:140
121650380irq/29-eth0_g0_13-21kworker/0:109:50:020
121650380irq/29-eth0_g0_13-21kworker/0:109:44:240
121650380irq/29-eth0_g0_13-21kworker/0:109:14:480
121650380irq/29-eth0_g0_13-21kworker/0:109:12:560
121650380irq/29-eth0_g0_0-21swapper/008:14:170
121380ksoftirqd/1121750irq/30-eth0_g0_11:04:270
121380ksoftirqd/1121750irq/30-eth0_g0_08:39:221
29659993725cyclictest14983-21ps08:19:211
29659993724cyclictest20717-21df08:44:141
29659993723cyclictest29957-21unixbench_singl09:19:271
121750370irq/30-eth0_g0_1219-21kworker/1:211:26:291
121750370irq/30-eth0_g0_1219-21kworker/1:211:26:291
121750370irq/30-eth0_g0_1219-21kworker/1:210:41:151
121750370irq/30-eth0_g0_1219-21kworker/1:209:29:201
121650370irq/29-eth0_g0_30023-21taskset09:19:420
121650370irq/29-eth0_g0_24466-21df_abs08:59:150
121650370irq/29-eth0_g0_23734-21unixbench_multi08:54:230
121650370irq/29-eth0_g0_13-21kworker/0:112:23:230
121650370irq/29-eth0_g0_13-21kworker/0:112:23:230
121650370irq/29-eth0_g0_13-21kworker/0:112:12:300
121650370irq/29-eth0_g0_13-21kworker/0:112:00:330
121650370irq/29-eth0_g0_13-21kworker/0:111:51:100
121650370irq/29-eth0_g0_13-21kworker/0:111:37:000
121650370irq/29-eth0_g0_1219-21kworker/1:209:17:081
121650370irq/29-eth0_g0_0-21swapper/011:30:260
121650360irq/29-eth0_g0_32589-21df_inode11:44:140
121650360irq/29-eth0_g0_20657-21/usr/sbin/munin08:44:190
121650360irq/29-eth0_g0_1964-21runrttasks08:27:010
121650360irq/29-eth0_g0_1964-21runrttasks08:10:590
121650360irq/29-eth0_g0_1964-21runrttasks07:45:010
121650360irq/29-eth0_g0_1964-21runrttasks07:45:010
121650360irq/29-eth0_g0_1964-21runrttasks07:37:540
121650360irq/29-eth0_g0_1964-21runrttasks07:22:090
121650360irq/29-eth0_g0_14629-21df_abs08:19:140
121650360irq/29-eth0_g0_13-21kworker/0:109:27:380
121650360irq/29-eth0_g0_0-21swapper/011:14:580
121650360irq/29-eth0_g0_0-21swapper/009:39:030
121650360irq/29-eth0_g0_0-21swapper/007:54:240
29659993522cyclictest12455-21seq08:09:201
121650350irq/29-eth0_g0_2868-21unixbench_multi07:29:240
121650350irq/29-eth0_g0_1964-21runrttasks08:08:520
121650350irq/29-eth0_g0_1964-21runrttasks07:43:230
121650350irq/29-eth0_g0_1964-21runrttasks07:24:140
121650350irq/29-eth0_g0_13-21kworker/0:110:44:220
121650350irq/29-eth0_g0_10260-21grep07:59:240
121750340irq/30-eth0_g0_121ksoftirqd/108:54:151
121650340irq/29-eth0_g0_1964-21runrttasks08:34:180
29659993328cyclictest16442-21unixbench_singl08:24:241
29659993227cyclictest30406-21unixbench_multi07:09:241
121750320irq/30-eth0_g0_4153-21unixbench_singl07:34:261
121650320irq/29-eth0_g0_7068-21cat07:49:031
121650320irq/29-eth0_g0_7068-21cat07:49:031
121650320irq/29-eth0_g0_0-21swapper/008:39:140
121750310irq/30-eth0_g0_0-21swapper/107:56:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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