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2026-03-26 - 07:18

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 Thu Mar 26, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1790321500chrt121650irq/29-eth0_g0_21:10:280
2383421390sleep0121650irq/29-eth0_g0_23:49:140
35552710sleep1121750irq/30-eth0_g0_00:37:541
149702640sleep1121750irq/30-eth0_g0_23:11:021
121580ksoftirqd/1121750irq/30-eth0_g0_19:05:131
292112540sleep0121650irq/29-eth0_g0_21:58:330
287902500chrt121650irq/29-eth0_g0_00:09:530
303962490sleep0121750irq/30-eth0_g0_22:03:050
121490ksoftirqd/1121750irq/30-eth0_g0_23:39:551
121480ksoftirqd/1121650irq/29-eth0_g0_20:45:141
121470ksoftirqd/1121750irq/30-eth0_g0_23:30:111
121470ksoftirqd/1121750irq/30-eth0_g0_23:03:111
121470ksoftirqd/1121650irq/29-eth0_g0_20:58:001
121470ksoftirqd/1121650irq/29-eth0_g0_19:44:341
121650450irq/29-eth0_g0_20003-21ntp_offset21:20:130
121650450irq/29-eth0_g0_1875-21runrttasks00:39:430
121450ksoftirqd/1121750irq/30-eth0_g0_22:46:161
121440ksoftirqd/1121750irq/30-eth0_g0_23:15:371
20030994328cyclictest1875-21runrttasks22:22:201
134672430sleep013470-21processes23:05:160
121650430irq/29-eth0_g0_31ksoftirqd/021:31:310
121650430irq/29-eth0_g0_19577-21unixbench_singl19:05:180
121650430irq/29-eth0_g0_13-21kworker/0:100:02:370
121430ksoftirqd/1121750irq/30-eth0_g0_23:55:180
121430ksoftirqd/1121650irq/29-eth0_g0_21:36:351
121650420irq/29-eth0_g0_31ksoftirqd/023:00:270
121650420irq/29-eth0_g0_23108-21sendmail_mailqu19:20:180
121650420irq/29-eth0_g0_121ksoftirqd/100:10:131
121420ksoftirqd/1121650irq/29-eth0_g0_23:09:401
121750410irq/30-eth0_g0_1219-21kworker/1:222:32:151
121750410irq/30-eth0_g0_121ksoftirqd/100:31:290
121650410irq/29-eth0_g0_31ksoftirqd/022:57:370
121650410irq/29-eth0_g0_31ksoftirqd/021:16:060
121650410irq/29-eth0_g0_31ksoftirqd/021:16:060
121650410irq/29-eth0_g0_13-21kworker/0:122:35:550
121410ksoftirqd/1121650irq/29-eth0_g0_21:48:281
121410ksoftirqd/1121650irq/29-eth0_g0_21:00:151
121750400irq/30-eth0_g0_1219-21kworker/1:221:53:261
121750400irq/30-eth0_g0_1219-21kworker/1:200:09:531
121750400irq/30-eth0_g0_0-21swapper/122:09:121
121650400irq/29-eth0_g0_5432sleep022:14:480
121650400irq/29-eth0_g0_13-21kworker/0:122:44:490
121650400irq/29-eth0_g0_13-21kworker/0:121:35:180
121650400irq/29-eth0_g0_13-21kworker/0:100:27:190
121650400irq/29-eth0_g0_13-21kworker/0:100:20:130
121650400irq/29-eth0_g0_13-21kworker/0:100:17:070
121650400irq/29-eth0_g0_1156-21processes22:15:160
121650400irq/29-eth0_g0_0-21swapper/019:35:140
121400ksoftirqd/1121750irq/30-eth0_g0_23:37:280
121400ksoftirqd/1121650irq/29-eth0_g0_00:23:211
259922390sleep1121750irq/30-eth0_g0_23:55:531
2003099392cyclictest27389-21munin-run19:39:571
2003099391cyclictest32550-21grep22:10:191
2003099391cyclictest29406-21head19:45:181
2003099391cyclictest25550-21awk19:30:171
121750390irq/30-eth0_g0_1219-21kworker/1:223:27:421
121750390irq/30-eth0_g0_1219-21kworker/1:222:41:101
121750390irq/30-eth0_g0_1219-21kworker/1:222:35:461
121750390irq/30-eth0_g0_121ksoftirqd/123:49:311
121750390irq/30-eth0_g0_121ksoftirqd/122:26:491
121650390irq/29-eth0_g0_31ksoftirqd/023:18:530
121650390irq/29-eth0_g0_29338-21proc_pri00:10:160
121650390irq/29-eth0_g0_1875-21runrttasks21:05:020
121650390irq/29-eth0_g0_13-21kworker/0:122:54:530
121650390irq/29-eth0_g0_13-21kworker/0:122:54:530
121650390irq/29-eth0_g0_13-21kworker/0:122:47:350
121650390irq/29-eth0_g0_0-21swapper/021:00:120
121390ksoftirqd/116893-21latency23:20:111
121390ksoftirqd/1121750irq/30-eth0_g0_23:40:270
121390ksoftirqd/1121750irq/30-eth0_g0_23:28:250
121390ksoftirqd/1121750irq/30-eth0_g0_22:31:540
121390ksoftirqd/1121750irq/30-eth0_g0_20:30:191
121390ksoftirqd/1121750irq/30-eth0_g0_20:30:191
121390ksoftirqd/1121650irq/29-eth0_g0_21:33:071
121390ksoftirqd/1121650irq/29-eth0_g0_00:17:551
2003099382cyclictest485-21chrt00:25:131
2003099382cyclictest1501-21cat20:05:131
2003099382cyclictest10897-21ntp_states22:55:151
2003099381cyclictest31790-21unixbench_multi19:55:191
2003099381cyclictest24657-21df_abs21:40:081
2003099381cyclictest21420-21taskset19:15:091
121750380irq/30-eth0_g0_1219-21kworker/1:222:15:141
121750380irq/30-eth0_g0_121ksoftirqd/123:51:481
121750380irq/30-eth0_g0_121ksoftirqd/123:41:041
121750380irq/30-eth0_g0_121ksoftirqd/121:21:151
121750380irq/30-eth0_g0_0-21swapper/122:02:501
121650380irq/29-eth0_g0_4796-21latency_hist20:19:580
121650380irq/29-eth0_g0_30953-21missed_timers22:05:110
121650380irq/29-eth0_g0_31ksoftirqd/021:25:410
121650380irq/29-eth0_g0_1875-21runrttasks21:50:110
121650380irq/29-eth0_g0_1875-21runrttasks19:43:040
121650380irq/29-eth0_g0_13-21kworker/0:123:53:000
121650380irq/29-eth0_g0_13-21kworker/0:123:30:570
121650380irq/29-eth0_g0_13-21kworker/0:121:49:560
121380ksoftirqd/1121750irq/30-eth0_g0_23:14:310
121380ksoftirqd/1121750irq/30-eth0_g0_22:21:200
2003099372cyclictest19040-21unixbench_multi21:15:191
2003099372cyclictest19040-21unixbench_multi21:15:191
2003099371cyclictest17062-21diskmemload00:00:101
2003099371cyclictest0-21swapper/121:25:141
121750370irq/30-eth0_g0_1219-21kworker/1:200:30:271
121750370irq/30-eth0_g0_121ksoftirqd/121:56:311
121650370irq/29-eth0_g0_6347-21/usr/sbin/munin20:25:120
121650370irq/29-eth0_g0_5282-21ntp_states20:20:140
121650370irq/29-eth0_g0_24980-21proc_pri21:40:150
121650370irq/29-eth0_g0_20728-21timerandwakeup19:10:180
121650370irq/29-eth0_g0_1875-21runrttasks20:59:480
121650370irq/29-eth0_g0_1875-21runrttasks20:07:470
121650370irq/29-eth0_g0_13-21kworker/0:123:20:580
121650370irq/29-eth0_g0_13-21kworker/0:122:25:000
121650370irq/29-eth0_g0_1109-21latency_hist20:04:570
121370ksoftirqd/1121650irq/29-eth0_g0_21:06:551
121370ksoftirqd/1121650irq/29-eth0_g0_20:17:221
2003099362cyclictest6510-21ntp_states20:25:151
2003099361cyclictest22709-21df_abs19:20:101
2003099361cyclictest17062-21diskmemload22:51:131
2003099361cyclictest17062-21diskmemload22:51:131
121750360irq/30-eth0_g0_0-21swapper/120:40:111
121650360irq/29-eth0_g0_8790-21runrttasks20:35:101
121650360irq/29-eth0_g0_8790-21runrttasks20:35:101
121650360irq/29-eth0_g0_31664-21chrt19:55:170
121650360irq/29-eth0_g0_1875-21runrttasks19:52:330
121650360irq/29-eth0_g0_12344-21runrttasks20:50:080
121650360irq/29-eth0_g0_121ksoftirqd/121:14:081
121650360irq/29-eth0_g0_10444-21unixbench_multi20:40:170
2003099351cyclictest491-21awk20:00:181
2003099351cyclictest2982-21sendmail_mailtr20:10:171
2003099351cyclictest12787-21taskset20:50:171
121650350irq/29-eth0_g0_1875-21runrttasks20:45:050
121650350irq/29-eth0_g0_1875-21runrttasks20:32:500
121650350irq/29-eth0_g0_1875-21runrttasks20:32:500
121650350irq/29-eth0_g0_1875-21runrttasks20:10:110
121650350irq/29-eth0_g0_1875-21runrttasks19:16:060
121650350irq/29-eth0_g0_0-21swapper/019:25:110
2003099341cyclictest24438-21unixbench_multi19:25:171
2003099341cyclictest0-21swapper/119:11:231
121650340irq/29-eth0_g0_25489-21grep19:30:160
121650340irq/29-eth0_g0_1875-21runrttasks20:34:580
121650340irq/29-eth0_g0_1875-21runrttasks20:34:580
121650340irq/29-eth0_g0_1875-21runrttasks19:46:530
121650330irq/29-eth0_g0_2003099cyclictest20:20:161
2003099321cyclictest0-21swapper/119:51:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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