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2026-04-29 - 23:01
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack9slot4.osadl.org (updated Wed Apr 29, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18745112373sleep0-21swapper/116:32:161
18857991228cyclictest0-21swapper/018:57:320
18857991173cyclictest2937-21aten_r9power_cu20:52:350
18857991163cyclictest9618-21ntp_kernel_pll_19:27:520
18857991138cyclictest0-21swapper/021:12:490
18857991128cyclictest0-21swapper/020:52:250
18857991107cyclictest0-21swapper/016:57:490
18857991087cyclictest0-21swapper/021:22:260
18857991057cyclictest0-21swapper/019:17:530
18857991053cyclictest21344-21ntp_kernel_pll_16:37:470
18089110570sleep0-21swapper/016:32:010
18857991048cyclictest0-21swapper/018:12:510
18857991047cyclictest0-21swapper/021:07:570
18857991043cyclictest25283-21cat20:17:540
18857991038cyclictest0-21swapper/017:32:540
18857991037cyclictest0-21swapper/020:22:540
18857991033cyclictest24305-21latency_hist20:17:240
18857991022cyclictest297-21snmpd16:55:050
188579910210cyclictest26455-21ntp_states18:37:510
18857991018cyclictest0-21swapper/017:27:380
18857991016cyclictest1256-21latency_hist20:47:250
18857991008cyclictest0-21swapper/020:37:480
18857999953cyclictest6950irq/18-mmc021:48:060
1885799988cyclictest0-21swapper/021:22:520
1885799988cyclictest0-21swapper/021:22:520
1885799983cyclictest74-21mmcqd/018:27:380
1885799983cyclictest19736-21/usr/sbin/munin20:02:540
1885799983cyclictest12955-21latency_hist17:57:200
18857999814cyclictest74-21mmcqd/017:17:540
1885799977cyclictest0-21swapper/017:02:490
1885799973cyclictest29245-21cpu20:32:360
18857999711cyclictest29578-21ntp_offset18:47:520
18857999658cyclictest6950irq/18-mmc019:52:540
18857999610cyclictest0-21swapper/020:58:000
1885799959cyclictest23989-21latency_hist18:32:210
1885799958cyclictest21299-21/usr/sbin/munin20:08:030
1885799949cyclictest324-21ntpd19:12:520
18857999446cyclictest33350irq/43-eth017:47:360
18857999411cyclictest0-21swapper/018:17:500
1885799927cyclictest0-21swapper/017:12:470
18857999245cyclictest33350irq/43-eth019:35:370
1885799909cyclictest0-21swapper/021:57:480
1885799909cyclictest0-21swapper/021:57:480
1885799908cyclictest17858-21ntp_states21:37:570
1885799908cyclictest0-21swapper/019:22:350
1885799907cyclictest0-21swapper/018:23:180
1885799904cyclictest0-21swapper/018:12:210
1885799903cyclictest74-21mmcqd/021:02:360
18857999010cyclictest0-21swapper/017:22:450
1885799899cyclictest0-21swapper/021:27:520
1885799899cyclictest0-21swapper/016:42:540
1885799899cyclictest0-21swapper/016:42:540
1885799897cyclictest0-21swapper/018:07:210
1885799897cyclictest0-21swapper/017:08:200
18857998945cyclictest6950irq/18-mmc016:47:580
1885799889cyclictest0-21swapper/018:52:510
18857998812cyclictest0-21swapper/019:09:280
1885799878cyclictest0-21swapper/019:47:560
1885799875cyclictest0-21swapper/019:02:570
22950860irq/18-spi_topc0-21swapper/116:57:491
1885799867cyclictest0-21swapper/021:52:480
1885799859cyclictest0-21swapper/019:40:570
1885799853cyclictest74-21mmcqd/018:42:520
1885799849cyclictest0-21swapper/017:57:430
1885799836cyclictest0-21swapper/016:36:520
1885799833cyclictest74-21mmcqd/019:58:040
18857998216cyclictest0-21swapper/017:52:510
1885799818cyclictest0-21swapper/017:37:350
1885799806cyclictest0-21swapper/017:43:550
1885799798cyclictest0-21swapper/020:30:580
1885799787cyclictest0-21swapper/019:45:440
1885799769cyclictest0-21swapper/021:43:130
22950750irq/18-spi_topc0-21swapper/117:27:491
6950730irq/18-mmc0191ksoftirqd/118:22:551
1885799716cyclictest0-21swapper/021:36:410
6950660irq/18-mmc0191ksoftirqd/116:42:481
6950660irq/18-mmc0191ksoftirqd/116:42:481
22950660irq/18-spi_topc0-21swapper/117:22:241
6950630irq/18-mmc0191ksoftirqd/118:48:021
22950630irq/18-spi_topc0-21swapper/121:41:461
1886699639cyclictest0-21swapper/116:52:381
22950620irq/18-spi_topc0-21swapper/118:13:561
1886699629cyclictest0-21swapper/118:07:551
6950610irq/18-mmc0191ksoftirqd/120:20:581
22950600irq/18-spi_topc191ksoftirqd/119:02:521
22950600irq/18-spi_topc0-21swapper/120:24:591
33350590irq/43-eth027558-21basename20:27:351
33350590irq/43-eth019745-21aten_r9power_cu20:02:341
1886699599cyclictest0-21swapper/116:47:471
1886699598cyclictest0-21swapper/119:08:011
1886699596cyclictest0-21swapper/119:01:191
33350570irq/43-eth018222-21aten2.4-expect19:57:341
1699570watchdog/13010-21sh20:52:361
1886699567cyclictest0-21swapper/118:29:001
18866995631cyclictest20900-21wc21:47:571
1799560migration/110402-21aten_r9power_en19:32:351
33350550irq/43-eth01-21systemd21:31:041
1886699559cyclictest0-21swapper/120:12:421
33350540irq/43-eth00-21swapper/121:57:471
33350540irq/43-eth00-21swapper/121:57:471
1886699549cyclictest0-21swapper/120:07:481
1886699548cyclictest0-21swapper/117:17:421
1886699547cyclictest0-21swapper/120:38:541
1886699547cyclictest0-21swapper/117:47:411
18866995417cyclictest0-21swapper/117:42:521
1799540migration/130643-21/usr/sbin/munin17:07:451
1799540migration/127426-21/usr/sbin/munin18:42:361
1699540watchdog/129241-21wc17:02:531
33350530irq/43-eth016724-21tail19:52:361
33350530irq/43-eth011959-21grep17:52:401
33350530irq/43-eth011959-21grep17:52:401
33350530irq/43-eth00-21swapper/121:12:441
1886699539cyclictest0-21swapper/121:32:411
1886699539cyclictest0-21swapper/121:17:531
1886699539cyclictest0-21swapper/120:57:401
1886699539cyclictest0-21swapper/119:37:391
1886699539cyclictest0-21swapper/119:12:371
18866995310cyclictest0-21swapper/120:47:521
18866995310cyclictest0-21swapper/117:12:431
18866995310cyclictest0-21swapper/116:32:381
1799530migration/16322-21/usr/sbin/munin21:02:401
1799530migration/1459-21irqstats20:42:501
1799530migration/121698-21runrttasks16:38:251
1799530migration/118760-21/usr/sbin/munin21:42:411
1699530watchdog/1297-21snmpd17:37:581
1699530watchdog/122658-21/usr/sbin/munin21:53:011
1886699529cyclictest0-21swapper/120:32:411
1886699529cyclictest0-21swapper/119:27:511
1886699529cyclictest0-21swapper/118:52:391
1886699529cyclictest0-21swapper/118:37:361
1886699529cyclictest0-21swapper/118:32:461
1886699529cyclictest0-21swapper/118:17:371
1886699528cyclictest0-21swapper/119:42:381
18866995211cyclictest0-21swapper/119:22:391
18866995210cyclictest0-21swapper/119:47:471
18866995210cyclictest0-21swapper/117:57:351
18866995210cyclictest0-21swapper/117:32:491
1799520migration/113305-21timerandwakeup21:23:011
1799520migration/113305-21timerandwakeup21:23:011
1699520watchdog/17611-21/usr/sbin/munin21:07:361
1886699519cyclictest0-21swapper/119:17:401
18866995110cyclictest0-21swapper/118:02:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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