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2026-08-06 - 20:26

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 Thu Aug 06, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
849221430sleep1121650irq/29-eth0_g0_11:58:561
121860ksoftirqd/1121750irq/30-eth0_g0_11:48:340
121810ksoftirqd/1121750irq/30-eth0_g0_10:42:000
121700ksoftirqd/1121750irq/30-eth0_g0_10:01:511
121610ksoftirqd/1121750irq/30-eth0_g0_07:07:191
121590ksoftirqd/1121750irq/30-eth0_g0_07:52:231
121580ksoftirqd/1121750irq/30-eth0_g0_10:10:171
121560ksoftirqd/1121650irq/29-eth0_g0_12:17:231
121540ksoftirqd/1121750irq/30-eth0_g0_11:54:521
64672530sleep0121650irq/29-eth0_g0_09:38:080
121650520irq/29-eth0_g0_12065-21latency10:02:150
121520ksoftirqd/1121750irq/30-eth0_g0_11:13:201
121510ksoftirqd/1121750irq/30-eth0_g0_11:40:550
121500ksoftirqd/1121750irq/30-eth0_g0_07:47:200
121500ksoftirqd/1121750irq/30-eth0_g0_07:47:200
121650490irq/29-eth0_g0_30461-21sort11:17:140
121750480irq/30-eth0_g0_112799cyclictest10:25:151
121480ksoftirqd/1121750irq/30-eth0_g0_11:46:331
121480ksoftirqd/1121750irq/30-eth0_g0_09:27:190
121480ksoftirqd/1121650irq/29-eth0_g0_11:09:141
121480ksoftirqd/1121650irq/29-eth0_g0_09:48:151
121750470irq/30-eth0_g0_112799cyclictest07:37:201
120362470sleep1121750irq/30-eth0_g0_12:12:221
121470ksoftirqd/1121750irq/30-eth0_g0_09:19:031
121470ksoftirqd/1121750irq/30-eth0_g0_09:19:031
121470ksoftirqd/1121750irq/30-eth0_g0_08:16:071
121470ksoftirqd/1121750irq/30-eth0_g0_07:37:110
121470ksoftirqd/1121650irq/29-eth0_g0_09:07:491
116812470sleep0121750irq/30-eth0_g0_10:01:420
121650460irq/29-eth0_g0_607-21unixbench_multi07:02:190
121650460irq/29-eth0_g0_19974-21taskset08:22:140
121650460irq/29-eth0_g0_19974-21taskset08:22:140
121650460irq/29-eth0_g0_1964-21runrttasks10:47:410
121460ksoftirqd/1121750irq/30-eth0_g0_12:05:291
121460ksoftirqd/1121750irq/30-eth0_g0_11:32:200
121460ksoftirqd/1121650irq/29-eth0_g0_10:27:111
121450ksoftirqd/1121750irq/30-eth0_g0_11:54:400
121450ksoftirqd/1121750irq/30-eth0_g0_10:13:281
121450ksoftirqd/1121750irq/30-eth0_g0_09:29:191
121450ksoftirqd/1121650irq/29-eth0_g0_10:39:021
112799455cyclictest66102sleep109:39:481
112799455cyclictest27360-21chrt11:03:281
112799451cyclictest31996-21df09:12:081
121650440irq/29-eth0_g0_13-21kworker/0:110:27:380
121650440irq/29-eth0_g0_13-21kworker/0:109:52:260
121650440irq/29-eth0_g0_13-21kworker/0:109:34:530
121650440irq/29-eth0_g0_112799cyclictest09:52:211
121440ksoftirqd/1121750irq/30-eth0_g0_10:35:561
121440ksoftirqd/1121650irq/29-eth0_g0_12:36:591
112799442cyclictest119362chrt07:48:551
112799442cyclictest119362chrt07:48:551
1127994411cyclictest6331-21latency_hist11:51:591
121750430irq/30-eth0_g0_112799cyclictest07:22:181
121650430irq/29-eth0_g0_13-21kworker/0:111:23:270
121650430irq/29-eth0_g0_13-21kworker/0:109:12:560
121430ksoftirqd/1121750irq/30-eth0_g0_11:02:220
121430ksoftirqd/1121750irq/30-eth0_g0_10:42:250
112799436cyclictest8201-21taskset07:33:181
112799432cyclictest671-21proc_pri11:27:181
112799431cyclictest22304-21unixbench_singl10:42:211
112799431cyclictest14001-21latency12:22:141
112799431cyclictest14001-21latency12:22:141
121650420irq/29-eth0_g0_1964-21runrttasks10:26:580
121650420irq/29-eth0_g0_13-21kworker/0:110:17:150
121650420irq/29-eth0_g0_13-21kworker/0:110:15:520
121650420irq/29-eth0_g0_13-21kworker/0:109:23:490
112799427cyclictest219742sleep108:31:291
112799421cyclictest20337-21unixbench_singl08:22:201
112799421cyclictest20337-21unixbench_singl08:22:201
112799421cyclictest11916-21df_abs10:02:121
121750410irq/30-eth0_g0_605-21tail07:02:191
121650410irq/29-eth0_g0_13-21kworker/0:112:21:190
121650410irq/29-eth0_g0_13-21kworker/0:111:28:590
121650410irq/29-eth0_g0_13-21kworker/0:111:12:130
121650410irq/29-eth0_g0_13-21kworker/0:111:11:000
121650410irq/29-eth0_g0_13-21kworker/0:110:58:300
121650410irq/29-eth0_g0_13-21kworker/0:110:32:380
121650410irq/29-eth0_g0_13-21kworker/0:110:08:540
121650410irq/29-eth0_g0_13-21kworker/0:109:17:450
121650410irq/29-eth0_g0_13-21kworker/0:109:17:450
121410ksoftirqd/1121750irq/30-eth0_g0_11:32:141
121410ksoftirqd/1121750irq/30-eth0_g0_09:22:171
121410ksoftirqd/1121750irq/30-eth0_g0_08:59:290
121410ksoftirqd/1121750irq/30-eth0_g0_08:32:210
121410ksoftirqd/1121750irq/30-eth0_g0_07:44:130
121410ksoftirqd/1121650irq/29-eth0_g0_10:54:071
112799418cyclictest0-21swapper/108:56:001
112799412cyclictest24954-21ntp_kernel_pll_08:42:161
112799412cyclictest194242sleep108:20:221
112799412cyclictest107522sleep107:44:261
112799411cyclictest4071-21/usr/sbin/munin07:17:141
112799411cyclictest3520-21chrt11:38:131
112799411cyclictest15400-21grep08:02:201
112799411cyclictest1219-21kworker/1:211:25:071
112799411cyclictest10755-21unixbench_singl12:07:211
121650400irq/29-eth0_g0_14048-21memory12:22:140
121650400irq/29-eth0_g0_14048-21memory12:22:140
121650400irq/29-eth0_g0_13-21kworker/0:112:28:270
121650400irq/29-eth0_g0_13-21kworker/0:112:04:010
121650400irq/29-eth0_g0_13-21kworker/0:111:59:210
121650400irq/29-eth0_g0_13-21kworker/0:109:47:090
121400ksoftirqd/1121750irq/30-eth0_g0_11:44:410
121400ksoftirqd/1121750irq/30-eth0_g0_10:52:160
121400ksoftirqd/1121750irq/30-eth0_g0_10:21:261
121400ksoftirqd/1121750irq/30-eth0_g0_09:45:330
121400ksoftirqd/1121750irq/30-eth0_g0_08:47:151
121400ksoftirqd/1121750irq/30-eth0_g0_08:45:040
121400ksoftirqd/1121750irq/30-eth0_g0_08:40:120
121400ksoftirqd/1121750irq/30-eth0_g0_08:17:470
121400ksoftirqd/1121750irq/30-eth0_g0_07:59:140
121400ksoftirqd/1121750irq/30-eth0_g0_07:22:380
121400ksoftirqd/1121750irq/30-eth0_g0_07:09:520
112799408cyclictest1219-21kworker/1:212:28:471
112799407cyclictest7013-21chrt07:28:461
112799405cyclictest26213-21taskset10:59:251
112799402cyclictest5078-21tail09:32:201
1127994011cyclictest13589-21df_abs07:57:121
112799401cyclictest30084-21timerandwakeup09:02:201
112799401cyclictest2476-21/usr/sbin/munin07:12:091
112799401cyclictest23116-21latency10:47:131
121650390irq/29-eth0_g0_13-21kworker/0:112:35:390
121650390irq/29-eth0_g0_13-21kworker/0:112:08:060
121650390irq/29-eth0_g0_13-21kworker/0:109:10:240
121390ksoftirqd/1121750irq/30-eth0_g0_09:02:170
121390ksoftirqd/1121750irq/30-eth0_g0_08:52:060
121390ksoftirqd/1121750irq/30-eth0_g0_08:47:440
121390ksoftirqd/1121750irq/30-eth0_g0_08:31:010
121390ksoftirqd/1121750irq/30-eth0_g0_08:13:420
121390ksoftirqd/1121750irq/30-eth0_g0_07:53:280
112799391cyclictest7273-21ntp_kernel_pll_09:42:161
112799391cyclictest304382sleep111:17:131
112799391cyclictest23554-21chrt08:37:131
112799391cyclictest22405-21load08:32:151
112799391cyclictest16550-21/usr/sbin/munin08:07:201
121650380irq/29-eth0_g0_16639-21tail08:07:210
121380ksoftirqd/1121750irq/30-eth0_g0_12:14:310
121380ksoftirqd/1121750irq/30-eth0_g0_08:02:260
121380ksoftirqd/1121750irq/30-eth0_g0_07:30:200
121380ksoftirqd/1121750irq/30-eth0_g0_07:20:160
121380ksoftirqd/1121750irq/30-eth0_g0_07:14:400
1127993816cyclictest1964-21runrttasks08:57:081
121650350irq/29-eth0_g0_7636-21latency07:32:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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