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2026-09-06 - 23:02
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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 highest latencies:
System rackcslot2.osadl.org (updated Sun Sep 06, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14452720,0sleep00-21swapper/009:31:270
227927151,16sleep10-21swapper/107:04:221
233126855,8sleep00-21swapper/007:04:550
197162660,1sleep00-21swapper/010:43:150
2803993232,0cyclictest22841-21ssh09:15:151
2802993210,0cyclictest0-21swapper/012:34:290
2802993110,20cyclictest0-21swapper/011:49:560
2803993010,0cyclictest0-21swapper/111:26:311
2803992929,0cyclictest0-21swapper/109:22:401
2803992910,4cyclictest0-21swapper/109:26:531
280399290,8cyclictest0-21swapper/112:33:111
2802992910,1cyclictest0-21swapper/009:45:270
280299280,1cyclictest0-21swapper/011:03:170
2803992610,5cyclictest0-21swapper/111:10:031
280399260,25cyclictest0-21swapper/110:33:561
2802992619,5cyclictest12647-21apache209:27:070
280399252,22cyclictest0-21swapper/111:17:291
2803992510,1cyclictest0-21swapper/112:28:391
280399250,3cyclictest0-21swapper/111:38:591
2802992510,5cyclictest0-21swapper/010:23:410
2802992510,11cyclictest0-21swapper/010:18:490
2803992410,10cyclictest0-21swapper/110:53:081
2803992410,10cyclictest0-21swapper/108:03:161
2802992410,9cyclictest0-21swapper/008:56:480
280399236,7cyclictest24479-21snmpd11:43:101
280399233,12cyclictest0-21swapper/110:38:101
2803992323,0cyclictest24-21ksoftirqd/111:57:581
2803992323,0cyclictest24-21ksoftirqd/111:57:581
2803992323,0cyclictest0-21swapper/107:57:251
2803992322,1cyclictest0-21swapper/108:16:551
280399231,12cyclictest0-21swapper/110:43:101
280399230,22cyclictest0-21swapper/110:26:381
280299239,11cyclictest16678-21diskmemload11:15:100
280299237,10cyclictest0-21swapper/007:28:070
280299236,12cyclictest0-21swapper/010:48:090
280299233,2cyclictest0-21swapper/009:21:110
2802992321,2cyclictest12620-21apache209:55:190
2802992310,9cyclictest0-21swapper/012:03:570
2802992310,9cyclictest0-21swapper/009:08:430
2802992310,7cyclictest0-21swapper/010:58:140
2802992310,12cyclictest0-21swapper/011:45:220
280399224,10cyclictest0-21swapper/108:23:091
2803992221,1cyclictest0-21swapper/108:40:501
2803992217,4cyclictest12620-21apache212:19:561
2803992214,7cyclictest12620-21apache209:59:231
2803992210,7cyclictest0-21swapper/110:13:181
2803992210,6cyclictest0-21swapper/107:43:101
2803992210,10cyclictest0-21swapper/109:10:021
280299227,5cyclictest0-21swapper/007:13:100
2802992222,0cyclictest0-21swapper/012:16:180
2802992210,5cyclictest0-21swapper/009:48:180
2802992210,5cyclictest0-21swapper/007:38:090
280299220,21cyclictest0-21swapper/008:25:010
2612022210,0sleep10-21swapper/112:26:231
280399217,12cyclictest0-21swapper/112:13:121
280399215,11cyclictest0-21swapper/108:28:141
2803992119,1cyclictest24-21ksoftirqd/107:49:221
2803992115,3cyclictest12620-21apache209:55:061
2803992110,5cyclictest0-21swapper/107:08:171
2803992110,4cyclictest0-21swapper/110:04:021
2803992110,2cyclictest100250irq/107-eth1-rx11:31:551
280299219,5cyclictest0-21swapper/009:13:150
280299215,5cyclictest0-21swapper/011:24:200
280299215,12cyclictest0-21swapper/010:03:170
2802992115,4cyclictest0-21swapper/007:58:280
2802992110,8cyclictest0-21swapper/010:08:100
2802992110,6cyclictest0-21swapper/008:43:160
2802992110,4cyclictest0-21swapper/010:28:460
2802992110,4cyclictest0-21swapper/009:33:120
2896422010,0sleep10-21swapper/110:09:471
280399205,11cyclictest0-21swapper/108:18:081
280399205,11cyclictest0-21swapper/108:18:081
280399203,9cyclictest0-21swapper/109:38:081
280399202,14cyclictest0-21swapper/108:33:121
2803992014,4cyclictest100250irq/107-eth1-rx11:18:021
2803992013,3cyclictest100150irq/106-eth1-rx12:06:261
280399201,0cyclictest27327-21kworker/u4:109:30:371
2803992010,5cyclictest0-21swapper/110:28:111
2803992010,4cyclictest0-21swapper/110:59:541
280299205,7cyclictest636-21nscd10:38:000
280299203,8cyclictest0-21swapper/007:53:100
280299203,6cyclictest10772-21ssh11:18:100
280299202,4cyclictest0-21swapper/011:57:210
280299202,4cyclictest0-21swapper/011:57:210
280299202,2cyclictest24404-21pmu-power12:23:170
2802992016,2cyclictest12647-21apache212:22:350
2802992015,4cyclictest802-21apache208:58:100
2802992015,4cyclictest0-21swapper/012:30:290
2802992010,8cyclictest0-21swapper/012:09:530
2802992010,5cyclictest0-21swapper/011:08:190
2802992010,4cyclictest0-21swapper/007:08:080
280299200,16cyclictest0-21swapper/011:32:420
1464522010,0sleep10-21swapper/109:49:161
280399195,8cyclictest0-21swapper/107:58:091
280399195,10cyclictest0-21swapper/107:38:161
280399194,9cyclictest0-21swapper/107:28:071
2803991919,0cyclictest0-21swapper/111:03:531
2803991919,0cyclictest0-21swapper/107:33:121
2803991913,4cyclictest12647-21apache212:00:131
2803991913,3cyclictest0-21swapper/110:20:311
2803991910,4cyclictest0-21swapper/111:34:471
2803991910,4cyclictest0-21swapper/109:03:141
2803991910,4cyclictest0-21swapper/108:43:151
2803991910,4cyclictest0-21swapper/108:10:091
2803991910,0cyclictest0-21swapper/109:33:031
280399190,18cyclictest0-21swapper/111:48:411
280399190,10cyclictest0-21swapper/107:13:111
2802991915,3cyclictest81ktimersoftd/012:01:280
2802991910,4cyclictest0-21swapper/011:40:110
2802991910,3cyclictest0-21swapper/009:58:150
2802991910,2cyclictest0-21swapper/007:23:090
280399184,6cyclictest0-21swapper/109:45:441
2803991811,4cyclictest100150irq/106-eth1-rx12:08:061
280299183,5cyclictest11862-21/usr/sbin/munin10:33:100
2802991810,5cyclictest0-21swapper/008:08:090
280299180,14cyclictest0-21swapper/010:53:120
280399175,7cyclictest0-21swapper/107:23:101
2803991713,3cyclictest599-21avahi-daemon10:48:051
2803991713,3cyclictest24479-21snmpd08:49:271
2802991716,1cyclictest0-21swapper/007:47:110
2802991715,1cyclictest599-21avahi-daemon07:33:010
2802991710,2cyclictest0-21swapper/008:18:080
2802991710,2cyclictest0-21swapper/008:18:080
2803991610,3cyclictest0-21swapper/108:53:121
2803991610,1cyclictest0-21swapper/108:58:091
280299165,8cyclictest0-21swapper/010:13:090
280299163,9cyclictest20228-21idleruntime-cro07:52:580
280299163,4cyclictest0-21swapper/007:18:180
280299162,8cyclictest0-21swapper/008:03:150
2802991611,3cyclictest0-21swapper/008:48:090
2802991610,4cyclictest0-21swapper/009:38:090
2802991610,4cyclictest0-21swapper/008:33:120
2802991610,2cyclictest0-21swapper/008:38:090
2802991610,1cyclictest0-21swapper/011:33:180
2802991510,2cyclictest0-21swapper/009:03:150
2802991510,0cyclictest0-21swapper/008:13:020
280399144,7cyclictest7470-21open_files07:18:161
2802991310,2cyclictest12647-21apache208:28:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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