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2026-04-04 - 20:18
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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 Sat Apr 04, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34322632283199,28sleep00-21swapper/007:07:580
34323292242199,29sleep10-21swapper/107:08:411
35797752570,4sleep00-21swapper/011:27:080
343258899543,6cyclictest3627506-21apt-get12:35:130
343258899543,5cyclictest3545280-21apt-get10:40:120
343258899532,6cyclictest3489016-21apt-get09:20:110
343258899522,6cyclictest3570701-40apt-check11:15:190
343258899522,5cyclictest3481609-21apt-get09:10:130
179699520,3rtkit-daemon1795-21rtkit-daemon11:53:141
343258899512,4cyclictest3503114-21apt-get09:40:110
3432588995111,22cyclictest3510327-21df09:50:160
179699510,4rtkit-daemon1795-21rtkit-daemon10:28:460
343258899501,10cyclictest3487458-21ssh09:17:070
343258899500,6cyclictest3480947-21diskmemload10:16:120
179699500,4rtkit-daemon1795-21rtkit-daemon10:30:040
179699500,4rtkit-daemon1795-21rtkit-daemon07:56:431
343258899492,5cyclictest3548826-21apt-get10:45:110
343258899480,9cyclictest3533701-21ssh10:23:030
179699480,4rtkit-daemon1795-21rtkit-daemon08:14:531
343258899472,7cyclictest3599194-21apt-get11:55:140
179699470,4rtkit-daemon1795-21rtkit-daemon08:03:541
179699470,3rtkit-daemon1795-21rtkit-daemon07:51:411
34373162460,2sleep10-21swapper/107:20:151
343258899468,3cyclictest3480947-21diskmemload12:19:410
343258899462,5cyclictest3517113-21apt-get10:00:140
343258899462,5cyclictest3447095-21apt-get07:45:130
343258899461,9cyclictest3474854-21apt08:55:110
343258899461,7cyclictest3620493-21apt-get12:25:130
3432588994611,19cyclictest3480947-21diskmemload11:02:050
343258899461,10cyclictest3456858-21apt-get08:10:110
179699460,3rtkit-daemon1795-21rtkit-daemon08:21:441
343258899458,4cyclictest0-21swapper/010:57:390
343258899451,9cyclictest3581224-21apt-get11:30:090
343258899450,9cyclictest3553547-21users10:50:260
343258899450,8cyclictest3514181-21irqstats09:55:180
343258899441,8cyclictest3480947-21diskmemload10:06:430
343258899441,8cyclictest3433320-21memory07:10:200
343258899441,6cyclictest3495887-21/usr/sbin/munin09:30:260
343258899441,6cyclictest3480947-21diskmemload12:34:390
343258899441,4cyclictest3506497-21apt-get09:45:130
343258899441,4cyclictest3480947-21diskmemload11:40:530
343258899431,7cyclictest3466378-21users08:30:240
343258899431,6cyclictest3455679-21ntp_states08:05:220
343258899431,5cyclictest3524248-21apt-get10:10:090
343258899431,5cyclictest3492438-21apt-get09:25:140
343258899430,9cyclictest3610412-21ntp_states12:10:200
179699430,3rtkit-daemon1795-21rtkit-daemon12:26:261
343258899422,6cyclictest3599164-21kworker/u8:012:00:130
343258899421,9cyclictest3453728-21ntp_states08:00:220
343258899421,8cyclictest3606434-21df12:05:150
343258899421,7cyclictest3617638-21memory12:20:190
343258899421,5cyclictest3480947-21diskmemload11:37:380
343258899420,8cyclictest3443715-21memory07:35:190
343258899411,8cyclictest3592827-21irqstats11:45:170
343258899411,6cyclictest3480947-21diskmemload10:36:530
343258899411,4cyclictest3436771-21lsb_release07:17:230
343258899410,8cyclictest3567285-21memory11:10:190
179699410,3rtkit-daemon0-21swapper/112:12:311
343258899401,5cyclictest3480947-21diskmemload11:22:350
179699390,8rtkit-daemon3608427-21ssh12:07:371
179699380,3rtkit-daemon1795-21rtkit-daemon11:06:051
179699380,3rtkit-daemon0-21swapper/110:07:151
179699380,3rtkit-daemon0-21swapper/109:12:181
35584882370,3sleep13558495-21ssh10:58:481
343258899371,5cyclictest3480947-21diskmemload09:36:440
179699370,3rtkit-daemon0-21swapper/112:37:241
179699360,4rtkit-daemon1795-21rtkit-daemon11:57:071
179699360,3rtkit-daemon0-21swapper/109:26:371
179699360,3rtkit-daemon0-21swapper/107:11:161
179699350,4rtkit-daemon1795-21rtkit-daemon08:33:281
179699350,3rtkit-daemon1795-21rtkit-daemon11:25:201
179699350,3rtkit-daemon0-21swapper/109:52:391
179699350,3rtkit-daemon0-21swapper/109:40:021
179699350,3rtkit-daemon0-21swapper/108:19:071
179699340,3rtkit-daemon1795-21rtkit-daemon10:19:391
179699340,3rtkit-daemon0-21swapper/109:06:491
179699340,3rtkit-daemon0-21swapper/009:15:101
343258899333,9cyclictest3476828-21apt-get09:00:130
343258899331,10cyclictest3565734-21ssh11:08:280
179699330,3rtkit-daemon1795-21rtkit-daemon08:05:271
179699330,3rtkit-daemon0-21swapper/111:54:230
179699330,3rtkit-daemon0-21swapper/007:44:511
343258899320,3cyclictest3439007-21turbostat07:25:000
179699320,3rtkit-daemon1795-21rtkit-daemon08:43:301
179699320,3rtkit-daemon1795-21rtkit-daemon08:39:371
179699320,3rtkit-daemon0-21swapper/108:46:210
179699320,3rtkit-daemon0-21swapper/108:39:300
179699320,3rtkit-daemon0-21swapper/007:25:101
179699320,18rtkit-daemon66950irq/132-enp2s011:21:111
3432594993110,5cyclictest26-21ksoftirqd/112:20:411
343258899311,8cyclictest3461789-21/usr/sbin/munin08:20:240
343258899311,7cyclictest3480105-21/usr/sbin/munin09:05:210
179699310,3rtkit-daemon1795-21rtkit-daemon09:55:081
179699310,1rtkit-daemon1795-21rtkit-daemon11:00:051
3432594993013,10cyclictest3548826-21apt-get10:45:141
343258899301,6cyclictest3441377-21diskstats07:30:150
179699300,3rtkit-daemon1795-21rtkit-daemon08:59:031
179699300,3rtkit-daemon1795-21rtkit-daemon07:44:380
179699300,3rtkit-daemon1795-21rtkit-daemon07:26:510
179699300,3rtkit-daemon0-21swapper/108:25:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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