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2026-04-29 - 16:19
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rackcslot4.osadl.org (updated Wed Apr 29, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16060982267184,29sleep00-21swapper/007:07:060
16063472261185,61sleep10-21swapper/107:09:461
17058092770,1chrt1705808-21/usr/sbin/munin10:15:221
179699680,9rtkit-daemon1676100-21sed09:35:241
16964752580,4sleep10-21swapper/110:03:201
179699530,3rtkit-daemon1795-21rtkit-daemon09:15:551
179699500,2rtkit-daemon1795-21rtkit-daemon11:26:561
179699490,4rtkit-daemon1795-21rtkit-daemon10:59:301
179699470,3rtkit-daemon1795-21rtkit-daemon09:07:551
16384092440,2sleep01638407-21awk08:25:220
179699430,3rtkit-daemon1795-21rtkit-daemon08:37:271
179699420,5rtkit-daemon1654955-21diskmemload10:48:550
17867262420,2sleep00-21swapper/012:02:220
160650799408,7cyclictest1773051-21munin-run11:45:010
179699380,3rtkit-daemon0-21swapper/109:22:441
179699370,3rtkit-daemon0-21swapper/009:34:010
179699360,3rtkit-daemon1795-21rtkit-daemon11:30:231
179699360,3rtkit-daemon0-21swapper/108:19:381
179699360,3rtkit-daemon0-21swapper/009:27:370
179699350,5rtkit-daemon1799080-21cron12:24:540
179699350,4rtkit-daemon1795-21rtkit-daemon11:17:171
179699350,3rtkit-daemon0-21swapper/111:55:321
179699350,3rtkit-daemon0-21swapper/111:02:501
179699350,3rtkit-daemon0-21swapper/110:51:311
179699350,3rtkit-daemon0-21swapper/107:49:381
179699350,3rtkit-daemon0-21swapper/012:10:411
179699350,3rtkit-daemon0-21swapper/007:12:110
179699340,6rtkit-daemon1769261-21ssh11:39:560
179699340,3rtkit-daemon0-21swapper/012:06:000
160650799346,6cyclictest13-21ksoftirqd/008:10:000
179699330,4rtkit-daemon1795-21rtkit-daemon10:44:440
179699330,3rtkit-daemon0-21swapper/109:03:380
179699330,3rtkit-daemon0-21swapper/108:05:071
179699330,3rtkit-daemon0-21swapper/108:02:081
179699330,3rtkit-daemon0-21swapper/007:34:241
179699330,2rtkit-daemon1795-21rtkit-daemon11:40:031
179699320,3rtkit-daemon1795-21rtkit-daemon12:20:041
179699320,3rtkit-daemon1795-21rtkit-daemon11:47:291
179699320,3rtkit-daemon0-21swapper/110:57:500
179699320,3rtkit-daemon0-21swapper/110:09:550
179699320,3rtkit-daemon0-21swapper/109:15:260
179699320,3rtkit-daemon0-21swapper/107:42:230
179699320,3rtkit-daemon0-21swapper/012:16:561
1606509993229,2cyclictest66950irq/132-enp2s011:05:411
160650799327,6cyclictest13-21ksoftirqd/007:50:220
1606507993211,4cyclictest13-21ksoftirqd/009:47:430
1606507993211,3cyclictest13-21ksoftirqd/009:05:050
179699310,3rtkit-daemon1795-21rtkit-daemon11:53:381
179699310,3rtkit-daemon1795-21rtkit-daemon09:49:561
179699310,3rtkit-daemon0-21swapper/110:53:530
179699310,3rtkit-daemon0-21swapper/110:23:260
179699310,3rtkit-daemon0-21swapper/110:18:170
179699310,3rtkit-daemon0-21swapper/108:45:480
179699310,3rtkit-daemon0-21swapper/108:38:040
17007702310,1sleep10-21swapper/110:09:411
160650799310,8cyclictest1762843-21/usr/sbin/munin11:30:190
160650799310,7cyclictest1663281-21apt-get09:20:110
179699300,4rtkit-daemon1795-21rtkit-daemon10:38:490
179699300,4rtkit-daemon1695634-21ssh10:01:440
179699300,3rtkit-daemon1795-21rtkit-daemon12:28:291
179699300,3rtkit-daemon0-21swapper/111:06:520
179699300,3rtkit-daemon0-21swapper/108:56:320
179699300,3rtkit-daemon0-21swapper/108:34:440
179699300,3rtkit-daemon0-21swapper/012:06:571
18120912291,6sleep01654955-21diskmemload12:35:280
179699290,4rtkit-daemon1795-21rtkit-daemon09:29:521
179699290,3rtkit-daemon0-21swapper/109:57:140
179699290,3rtkit-daemon0-21swapper/108:41:350
179699290,3rtkit-daemon0-21swapper/107:35:270
1606509992917,2cyclictest0-21swapper/109:45:011
160650799295,6cyclictest13-21ksoftirqd/011:24:450
1606507992912,3cyclictest13-21ksoftirqd/009:14:170
179699280,3rtkit-daemon0-21swapper/111:47:360
179699280,3rtkit-daemon0-21swapper/109:42:240
179699280,3rtkit-daemon0-21swapper/107:19:080
1606509992814,4cyclictest26-21ksoftirqd/107:25:011
1606509992813,9cyclictest1613087-21apt-get07:25:161
160650999280,7cyclictest1648025-21grep08:50:191
160650999280,6cyclictest0-21swapper/111:23:141
160650799285,6cyclictest13-21ksoftirqd/008:23:040
160650799285,10cyclictest13-21ksoftirqd/010:30:220
160650799282,3cyclictest13-21ksoftirqd/007:30:000
1606507992814,4cyclictest13-21ksoftirqd/009:37:190
1606507992812,2cyclictest141rcu_preempt11:03:050
1606507992811,3cyclictest141rcu_preempt11:13:530
1606507992810,3cyclictest13-21ksoftirqd/012:30:180
160650799280,8cyclictest1804870-21ssh12:26:090
179699270,4rtkit-daemon1795-21rtkit-daemon10:27:081
179699270,3rtkit-daemon0-21swapper/107:57:010
179699270,3rtkit-daemon0-21swapper/107:46:230
160650999275,20cyclictest1810495-21wc12:35:001
160650999270,6cyclictest0-21swapper/110:12:271
160650799277,7cyclictest1758602-21df11:25:150
160650799275,9cyclictest13-21ksoftirqd/009:50:400
160650799272,6cyclictest13-21ksoftirqd/011:17:570
160650799272,5cyclictest13-21ksoftirqd/010:30:010
1606507992712,4cyclictest13-21ksoftirqd/011:55:450
1606507992710,4cyclictest13-21ksoftirqd/012:10:190
160650799270,9cyclictest1796415-21/usr/sbin/munin12:15:210
179699260,3rtkit-daemon0-21swapper/108:18:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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