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2026-01-05 - 02:41

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 Wed Dec 31, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
125792820sleep0121650irq/29-eth0_g0_22:56:110
25752620sleep1121750irq/30-eth0_g0_22:15:181
186802600sleep0121750irq/30-eth0_g0_23:20:430
121650600irq/29-eth0_g0_2126599cyclictest23:05:190
211902590sleep1121750irq/30-eth0_g0_23:31:231
121750540irq/30-eth0_g0_2126599cyclictest23:25:120
121650530irq/29-eth0_g0_2126599cyclictest20:55:140
177262520sleep0121750irq/30-eth0_g0_23:18:550
121650520irq/29-eth0_g0_2126599cyclictest23:54:090
311832500sleep0121650irq/29-eth0_g0_00:13:200
287362490chrt121750irq/30-eth0_g0_00:03:260
121750490irq/30-eth0_g0_2126599cyclictest00:21:550
121490ksoftirqd/1121750irq/30-eth0_g0_23:48:451
121650480irq/29-eth0_g0_2126599cyclictest23:14:490
121650480irq/29-eth0_g0_2126599cyclictest21:59:140
121480ksoftirqd/1121750irq/30-eth0_g0_21:37:591
21265994724cyclictest26205-21latency_hist19:29:560
121650470irq/29-eth0_g0_2126599cyclictest22:40:430
121650470irq/29-eth0_g0_2126599cyclictest22:40:430
121650470irq/29-eth0_g0_20808-21unixbench_singl19:05:190
121470ksoftirqd/1121750irq/30-eth0_g0_00:04:381
121750460irq/30-eth0_g0_2126599cyclictest22:54:400
121650460irq/29-eth0_g0_2126599cyclictest23:55:350
121650460irq/29-eth0_g0_2126599cyclictest23:55:350
121650460irq/29-eth0_g0_2126599cyclictest23:38:540
2126599454cyclictest121650irq/29-eth0_g0_20:25:180
2126599451cyclictest121650irq/29-eth0_g0_20:00:120
2126599451cyclictest121650irq/29-eth0_g0_19:45:180
121650450irq/29-eth0_g0_2126599cyclictest00:06:410
121450ksoftirqd/1121650irq/29-eth0_g0_00:32:270
2126599443cyclictest121650irq/29-eth0_g0_21:15:090
121650440irq/29-eth0_g0_2126599cyclictest22:28:580
121650440irq/29-eth0_g0_2126599cyclictest22:08:170
121440ksoftirqd/1121650irq/29-eth0_g0_23:17:241
2126599431cyclictest121650irq/29-eth0_g0_20:20:140
121650430irq/29-eth0_g0_2126599cyclictest23:45:190
121650430irq/29-eth0_g0_2126599cyclictest23:03:130
121650430irq/29-eth0_g0_2126599cyclictest22:22:100
121650430irq/29-eth0_g0_2126599cyclictest21:42:420
121650430irq/29-eth0_g0_2126599cyclictest00:15:170
121430ksoftirqd/1121750irq/30-eth0_g0_23:40:590
121430ksoftirqd/1121650irq/29-eth0_g0_22:51:081
121430ksoftirqd/1121650irq/29-eth0_g0_19:55:141
2126599426cyclictest27544-21find21:45:180
2126599422cyclictest121650irq/29-eth0_g0_19:55:200
2126599421cyclictest31714-21sendmail_mailqu19:50:160
2126599421cyclictest121650irq/29-eth0_g0_19:40:130
121650420irq/29-eth0_g0_2126599cyclictest21:14:150
121420ksoftirqd/1121650irq/29-eth0_g0_00:21:271
21265994119cyclictest22649-21df_abs19:15:060
2126599411cyclictest2982-21find20:05:150
2126599411cyclictest0-21swapper/019:29:580
121750410irq/30-eth0_g0_20818-21grep19:05:191
121750410irq/30-eth0_g0_1219-21kworker/1:221:57:401
121750410irq/30-eth0_g0_1219-21kworker/1:200:26:481
121650410irq/29-eth0_g0_2126599cyclictest22:35:070
121410ksoftirqd/1121650irq/29-eth0_g0_22:29:101
121410ksoftirqd/1121650irq/29-eth0_g0_22:09:571
121410ksoftirqd/1121650irq/29-eth0_g0_20:22:331
121410ksoftirqd/1121650irq/29-eth0_g0_20:09:511
2126599402cyclictest121650irq/29-eth0_g0_21:25:110
2126599401cyclictest1904-21runrttasks19:10:070
2126599401cyclictest18317-21diskmemload00:25:100
2126599401cyclictest121650irq/29-eth0_g0_21:05:100
2126599401cyclictest121650irq/29-eth0_g0_00:35:080
121750400irq/30-eth0_g0_1219-21kworker/1:223:13:051
121750400irq/30-eth0_g0_1219-21kworker/1:221:41:291
121750400irq/30-eth0_g0_1219-21kworker/1:200:16:481
121750400irq/30-eth0_g0_1219-21kworker/1:200:07:531
121400ksoftirqd/1121650irq/29-eth0_g0_23:27:371
121400ksoftirqd/1121650irq/29-eth0_g0_20:49:291
121400ksoftirqd/1121650irq/29-eth0_g0_20:33:301
121400ksoftirqd/1121650irq/29-eth0_g0_19:43:101
2126599396cyclictest21264-21cyclictest23:30:220
2126599392cyclictest21264-21cyclictest22:00:150
2126599392cyclictest12650-21ntp_kernel_err20:45:150
2126599391cyclictest5508-21timerandwakeup20:15:190
2126599391cyclictest2298-21chrt22:15:120
2126599391cyclictest13935-21/usr/sbin/munin20:50:160
2126599391cyclictest0-21swapper/022:30:070
121750390irq/30-eth0_g0_20268-21unixbench_multi21:15:171
121750390irq/30-eth0_g0_18172-21latency23:20:091
121750390irq/30-eth0_g0_1219-21kworker/1:223:41:231
121750390irq/30-eth0_g0_1219-21kworker/1:221:53:581
121750390irq/30-eth0_g0_1219-21kworker/1:221:32:551
121650390irq/29-eth0_g0_2126599cyclictest21:21:120
121650390irq/29-eth0_g0_2126599cyclictest21:21:120
121390ksoftirqd/1121650irq/29-eth0_g0_20:35:531
121390ksoftirqd/1121650irq/29-eth0_g0_20:29:191
121390ksoftirqd/1121650irq/29-eth0_g0_00:39:511
2126599385cyclictest121650irq/29-eth0_g0_22:45:080
2126599382cyclictest8973-21/usr/sbin/munin20:30:140
2126599381cyclictest27815-21cat19:35:110
2126599381cyclictest1904-21runrttasks22:10:340
2126599381cyclictest11752-21uptime20:40:180
121750380irq/30-eth0_g0_1219-21kworker/1:223:39:501
121750380irq/30-eth0_g0_1219-21kworker/1:222:56:271
121750380irq/30-eth0_g0_1219-21kworker/1:222:39:261
121750380irq/30-eth0_g0_1219-21kworker/1:221:47:071
121750380irq/30-eth0_g0_1219-21kworker/1:200:10:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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