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2025-03-19 - 19:48

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
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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 Mar 19, 2025 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1785821170sleep0121650irq/29-eth0_g0_11:31:580
400421100sleep0121650irq/29-eth0_g0_10:26:070
126032840sleep0121750irq/30-eth0_g0_11:08:470
106972660sleep0121650irq/29-eth0_g0_10:56:460
318222650sleep1121650irq/29-eth0_g0_12:38:571
9332550sleep1121650irq/29-eth0_g0_10:10:151
77932540sleep0121750irq/30-eth0_g0_10:42:250
292202540sleep1121650irq/29-eth0_g0_12:27:121
251072510chrt121750irq/30-eth0_g0_09:31:250
166702500sleep0121650irq/29-eth0_g0_11:27:240
96472490sleep1121750irq/30-eth0_g0_10:53:501
77292490sleep1121750irq/30-eth0_g0_10:41:401
52302490sleep0121650irq/29-eth0_g0_10:31:070
283502470sleep1121650irq/29-eth0_g0_09:49:411
83582440sleep1121650irq/29-eth0_g0_10:48:051
275742430sleep0121750irq/30-eth0_g0_12:18:130
190752430sleep0121650irq/29-eth0_g0_11:36:510
85022420sleep0121650irq/29-eth0_g0_10:49:450
23661994229cyclictest19986-21diskmemload12:07:401
121420ksoftirqd/1121650irq/29-eth0_g0_10:51:170
23661994129cyclictest19986-21diskmemload12:15:071
148682410sleep0121750irq/30-eth0_g0_11:16:360
190522400sleep1121750irq/30-eth0_g0_11:36:351
121750400irq/30-eth0_g0_470-21kworker/1:111:57:131
121650400irq/29-eth0_g0_23654-21latencyplot07:09:550
293832390sleep0121650irq/29-eth0_g0_09:52:250
23661993927cyclictest0-21swapper/111:16:121
219852390sleep0121750irq/30-eth0_g0_11:51:130
205252390sleep1121750irq/30-eth0_g0_11:44:261
205242380sleep0121650irq/29-eth0_g0_11:44:250
289282370sleep0121650irq/29-eth0_g0_12:24:440
121750370irq/30-eth0_g0_470-21kworker/1:112:02:361
121750370irq/30-eth0_g0_470-21kworker/1:111:30:091
121750370irq/30-eth0_g0_470-21kworker/1:109:32:281
120692370sleep1121650irq/29-eth0_g0_11:03:291
23661993631cyclictest4530-21df_abs10:30:021
23661993631cyclictest31441-21missed_timers07:40:121
23661993630cyclictest548-21grep07:45:141
23661993630cyclictest26868-21df_abs09:40:091
162162360sleep0121750irq/30-eth0_g0_11:23:030
121750360irq/30-eth0_g0_470-21kworker/1:111:53:121
121750360irq/30-eth0_g0_470-21kworker/1:111:21:161
121750360irq/30-eth0_g0_470-21kworker/1:110:04:031
121750360irq/30-eth0_g0_470-21kworker/1:109:50:491
121750360irq/30-eth0_g0_0-21swapper/108:00:151
121650360irq/29-eth0_g0_23312-21runrttasks07:06:011
37312350sleep0121650irq/29-eth0_g0_10:23:530
23661993529cyclictest30527-21grep07:35:131
23661993529cyclictest27873-21pluginstate07:25:131
23661993529cyclictest16427-21sendmail_mailqu08:50:171
23660993513cyclictest539-21unixbench_multi07:45:140
121750350irq/30-eth0_g0_470-21kworker/1:112:12:311
121750350irq/30-eth0_g0_470-21kworker/1:111:47:571
121750350irq/30-eth0_g0_470-21kworker/1:111:29:551
121750350irq/30-eth0_g0_470-21kworker/1:111:08:461
121750350irq/30-eth0_g0_470-21kworker/1:110:38:041
121750350irq/30-eth0_g0_470-21kworker/1:109:29:191
121750350irq/30-eth0_g0_470-21kworker/1:109:20:441
121650350irq/29-eth0_g0_106982sleep110:56:471
121650350irq/29-eth0_g0_0-21swapper/010:13:330
324542340sleep10-21swapper/110:08:421
29282340chrt2932-21wc10:20:081
23661993430cyclictest1927-21runrttasks12:20:521
23661993429cyclictest9758-21cpu08:25:071
23661993429cyclictest24048-21memory07:10:121
23661993429cyclictest19986-21diskmemload09:35:101
23661993429cyclictest1534-21ntpq07:50:151
23661993429cyclictest12721-21taskset08:35:131
23661993428cyclictest7928-21unixbench_multi08:15:161
23661993428cyclictest6005-21grep08:09:551
23661993428cyclictest20596-21processes09:10:101
121750340irq/30-eth0_g0_470-21kworker/1:111:10:551
121750340irq/30-eth0_g0_470-21kworker/1:111:10:551
121750340irq/30-eth0_g0_470-21kworker/1:110:17:531
121750340irq/30-eth0_g0_0-21swapper/112:33:071
23661993328cyclictest30154-21proc_pri09:55:141
23661993328cyclictest27682sleep107:55:111
23661993328cyclictest15319-21unixbench_multi08:45:171
23661993327cyclictest25966-21runrttasks07:18:141
23661993327cyclictest13970-21sendmail_mailqu08:40:161
23661993326cyclictest26738-21find07:20:131
2366099336cyclictest6027-21/usr/sbin/munin10:35:110
2366099335cyclictest19986-21diskmemload10:00:300
2366099335cyclictest1927-21runrttasks08:22:320
2366099334cyclictest1927-21runrttasks11:55:420
2366099332cyclictest5-21kworker/u:008:10:160
121750330irq/30-eth0_g0_470-21kworker/1:110:27:231
121750330irq/30-eth0_g0_470-21kworker/1:109:17:311
292052320sleep0121650irq/29-eth0_g0_12:27:020
250542320sleep0121650irq/29-eth0_g0_12:07:260
245082320chrt121650irq/29-eth0_g0_12:02:000
23661993228cyclictest7208-21wc08:14:551
23661993228cyclictest18591-21latency09:00:091
23661993227cyclictest17644-21chrt08:55:171
23661993227cyclictest11371-21ntpq08:30:161
2366099324cyclictest1927-21runrttasks07:55:080
23660993213cyclictest19986-21diskmemload10:19:080
23660993213cyclictest0-21swapper/007:35:460
207772320sleep0121650irq/29-eth0_g0_11:46:260
2366199312cyclictest29291-21unixbench_multi07:30:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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