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2026-09-18 - 04:14

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 100 highest latencies:
System rack3slot5s.osadl.org (updated Fri Sep 18, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2127021150chrt121650irq/29-eth0_g0_23:14:581
2127021150chrt121650irq/29-eth0_g0_23:14:581
257082740sleep0121750irq/30-eth0_g0_23:30:390
147262690sleep0121750irq/30-eth0_g0_22:45:420
58272590sleep1121750irq/30-eth0_g0_22:10:351
277012580sleep1121750irq/30-eth0_g0_21:27:101
41142510sleep1121650irq/29-eth0_g0_22:05:031
121750480irq/30-eth0_g0_31408-21if_eth023:55:331
121650480irq/29-eth0_g0_121ksoftirqd/123:50:401
121750470irq/30-eth0_g0_1219-21kworker/1:221:34:541
121750470irq/30-eth0_g0_121ksoftirqd/122:45:321
68992460sleep1121650irq/29-eth0_g0_00:25:471
121750440irq/30-eth0_g0_224072sleep123:18:531
121750440irq/30-eth0_g0_121ksoftirqd/121:55:411
121750440irq/30-eth0_g0_121ksoftirqd/121:35:401
121750440irq/30-eth0_g0_121ksoftirqd/121:00:381
121750440irq/30-eth0_g0_121ksoftirqd/100:15:351
121650440irq/29-eth0_g0_121ksoftirqd/119:40:351
121750430irq/30-eth0_g0_1219-21kworker/1:222:53:221
121750430irq/30-eth0_g0_121ksoftirqd/119:20:411
121650430irq/29-eth0_g0_28532-21proc_pri21:30:370
121650430irq/29-eth0_g0_24808-21cyclictest19:05:190
121650430irq/29-eth0_g0_13-21kworker/0:121:45:300
121650430irq/29-eth0_g0_121ksoftirqd/120:55:351
121430ksoftirqd/1121750irq/30-eth0_g0_21:10:361
121750420irq/30-eth0_g0_4819-21df_abs19:55:311
121650420irq/29-eth0_g0_30109-21missed_timers19:25:340
121650420irq/29-eth0_g0_121ksoftirqd/122:15:411
121750410irq/30-eth0_g0_25448-21awk19:05:381
121750410irq/30-eth0_g0_121ksoftirqd/122:56:341
121750410irq/30-eth0_g0_121ksoftirqd/121:41:151
121750410irq/30-eth0_g0_121ksoftirqd/121:06:271
121650410irq/29-eth0_g0_5367-21munin-run22:10:190
121650410irq/29-eth0_g0_29404-21grep23:45:420
121750400irq/30-eth0_g0_2731-21latency00:10:341
121750400irq/30-eth0_g0_2731-21latency00:10:341
121750400irq/30-eth0_g0_1219-21kworker/1:223:22:421
121750400irq/30-eth0_g0_1219-21kworker/1:222:36:411
121750400irq/30-eth0_g0_1219-21kworker/1:222:27:411
121750400irq/30-eth0_g0_1219-21kworker/1:222:10:001
121750400irq/30-eth0_g0_1219-21kworker/1:221:15:331
121750400irq/30-eth0_g0_121ksoftirqd/121:50:341
121650400irq/29-eth0_g0_419-21grep19:35:400
121650400irq/29-eth0_g0_26531-21/usr/sbin/munin19:10:360
121650400irq/29-eth0_g0_21935-21sendmail_mailqu23:15:400
121650400irq/29-eth0_g0_13-21kworker/0:123:51:440
121650400irq/29-eth0_g0_13-21kworker/0:121:30:180
121750390irq/30-eth0_g0_1219-21kworker/1:223:38:151
121750390irq/30-eth0_g0_1219-21kworker/1:223:30:191
121750390irq/30-eth0_g0_1219-21kworker/1:200:31:191
121750390irq/30-eth0_g0_1219-21kworker/1:200:00:201
121750390irq/30-eth0_g0_121ksoftirqd/122:23:261
121750390irq/30-eth0_g0_121ksoftirqd/122:23:261
121650390irq/29-eth0_g0_30985-21proc_pri21:40:380
121650390irq/29-eth0_g0_2453-21head21:55:410
121650390irq/29-eth0_g0_13-21kworker/0:123:56:330
121650390irq/29-eth0_g0_13-21kworker/0:121:17:320
121650390irq/29-eth0_g0_13-21kworker/0:100:28:250
121650390irq/29-eth0_g0_121ksoftirqd/123:45:411
121650390irq/29-eth0_g0_11588-21/usr/sbin/munin22:35:310
121650390irq/29-eth0_g0_10145-21taskset22:28:540
121750380irq/30-eth0_g0_8500-21df20:10:311
121750380irq/30-eth0_g0_121ksoftirqd/123:06:061
121650380irq/29-eth0_g0_24743-21seq23:27:320
121650380irq/29-eth0_g0_24187-21rt-features19:00:371
121650380irq/29-eth0_g0_1964-21runrttasks22:41:510
121650380irq/29-eth0_g0_17256-21uname20:45:330
121650380irq/29-eth0_g0_13-21kworker/0:122:30:340
121650380irq/29-eth0_g0_13-21kworker/0:122:20:370
121650380irq/29-eth0_g0_13-21kworker/0:122:20:370
121650380irq/29-eth0_g0_13-21kworker/0:122:18:110
121650380irq/29-eth0_g0_13-21kworker/0:122:11:440
121650380irq/29-eth0_g0_13-21kworker/0:121:06:260
121650380irq/29-eth0_g0_13-21kworker/0:100:31:270
121650380irq/29-eth0_g0_13-21kworker/0:100:20:410
121650380irq/29-eth0_g0_13-21kworker/0:100:10:360
121650380irq/29-eth0_g0_13-21kworker/0:100:10:360
121650380irq/29-eth0_g0_13-21kworker/0:100:07:290
121650380irq/29-eth0_g0_12782-21head20:25:390
121650380irq/29-eth0_g0_0-21swapper/019:15:350
121650380irq/29-eth0_g0_0-21swapper/019:15:350
24810993724cyclictest14677-21df_abs20:35:311
121750370irq/30-eth0_g0_1219-21kworker/1:223:43:211
121750370irq/30-eth0_g0_1219-21kworker/1:223:26:541
121750370irq/30-eth0_g0_1219-21kworker/1:223:03:231
121750370irq/30-eth0_g0_1219-21kworker/1:222:40:381
121750370irq/30-eth0_g0_1219-21kworker/1:222:34:321
121750370irq/30-eth0_g0_1219-21kworker/1:200:06:461
121650370irq/29-eth0_g0_7802sleep000:01:210
121650370irq/29-eth0_g0_3769-21df00:15:310
121650370irq/29-eth0_g0_29930-21unixbench_multi21:35:410
121650370irq/29-eth0_g0_27923-21/usr/sbin/munin23:40:350
121650370irq/29-eth0_g0_25369-21processes19:05:370
121650370irq/29-eth0_g0_2425-21df19:45:300
121650370irq/29-eth0_g0_23250-21unixbench_multi23:20:400
121650370irq/29-eth0_g0_18354-21unixbench_multi23:00:390
121650370irq/29-eth0_g0_14480-21latency_hist20:35:190
121650370irq/29-eth0_g0_13-21kworker/0:123:09:200
121650370irq/29-eth0_g0_13-21kworker/0:123:00:020
121650370irq/29-eth0_g0_13-21kworker/0:122:01:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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