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2025-08-26 - 18:41
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Tue Aug 26, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
259572770,0sleep00-21swapper/009:51:100
37992720,0sleep10-21swapper/112:14:121
936427049,8sleep00-21swapper/007:04:230
928426754,8sleep10-21swapper/107:03:341
11492640,0sleep00-21swapper/012:11:210
114392640,0sleep10-21swapper/111:40:171
984699292,26cyclictest0-21swapper/009:10:300
984699290,0cyclictest0-21swapper/009:14:030
984799281,26cyclictest19703-21kworker/1:209:44:361
9847992810,14cyclictest0-21swapper/110:31:581
9846992828,0cyclictest0-21swapper/011:31:380
9846992825,1cyclictest0-21swapper/012:21:360
984699280,0cyclictest0-21swapper/012:26:420
9847992726,0cyclictest0-21swapper/111:09:071
9847992710,2cyclictest0-21swapper/111:50:121
984799262,23cyclictest0-21swapper/111:33:071
9847992621,3cyclictest19753-21apache209:52:371
9847992610,3cyclictest0-21swapper/111:25:061
9846992622,3cyclictest23216-21ssh10:29:170
9846992619,5cyclictest81ktimersoftd/009:24:180
9846992610,2cyclictest0-21swapper/012:32:550
984799254,4cyclictest0-21swapper/112:28:031
984799252,3cyclictest0-21swapper/109:49:541
9847992521,0cyclictest0-21swapper/109:41:451
9846992524,0cyclictest0-21swapper/011:56:270
9846992510,15cyclictest0-21swapper/008:21:370
984699250,2cyclictest0-21swapper/010:02:330
9847992410,5cyclictest0-21swapper/111:12:291
9846992418,5cyclictest19317-21snmpd12:12:350
9846992410,7cyclictest0-21swapper/010:12:380
984699240,21cyclictest0-21swapper/011:05:460
9847992318,3cyclictest1111-21runrttasks10:52:191
9847992315,4cyclictest97850irq/107-eth1-rx12:00:231
9847992310,8cyclictest28652-21kworker/u4:210:18:211
9847992310,7cyclictest0-21swapper/108:18:501
9847992310,6cyclictest0-21swapper/112:17:381
984799230,22cyclictest0-21swapper/110:01:151
9846992322,1cyclictest19776-21apache209:42:310
9846992319,4cyclictest0-21swapper/012:29:180
9846992310,9cyclictest0-21swapper/011:08:560
9847992222,0cyclictest0-21swapper/111:21:301
9847992220,1cyclictest19776-21apache212:02:421
984799221,5cyclictest0-21swapper/110:14:211
9847992214,6cyclictest19776-21apache208:23:001
9847992210,7cyclictest0-21swapper/108:00:011
984699226,10cyclictest24094-21diskmemload10:52:360
9846992222,0cyclictest0-21swapper/007:27:350
9846992217,4cyclictest29160-21munin-node09:19:430
9846992215,5cyclictest19776-21apache211:48:490
9846992213,4cyclictest97950irq/108-eth1-tx09:34:540
9846992211,6cyclictest19776-21apache211:23:010
9846992211,2cyclictest0-21swapper/010:21:210
9846992210,6cyclictest0-21swapper/007:48:250
9846992210,4cyclictest0-21swapper/011:37:370
984699220,20cyclictest0-21swapper/009:41:460
984799216,11cyclictest0-21swapper/109:27:411
9847992118,2cyclictest19317-21snmpd11:55:031
9847992117,3cyclictest0-21swapper/110:45:141
9847992117,2cyclictest19753-21apache210:54:561
9847992110,6cyclictest13647-21ssh09:34:311
9847992110,6cyclictest0-21swapper/107:42:171
9847992110,2cyclictest0-21swapper/110:09:571
984799210,20cyclictest0-21swapper/110:58:181
9846992113,3cyclictest0-21swapper/008:42:440
9846992111,5cyclictest13575-21idleruntime-cro07:17:230
9846992110,3cyclictest0-21swapper/010:07:260
984699210,12cyclictest0-21swapper/010:47:350
984799206,6cyclictest32335-21/usr/sbin/munin09:17:371
9847992010,5cyclictest0-21swapper/108:37:371
9847992010,4cyclictest0-21swapper/110:22:401
9847992010,3cyclictest0-21swapper/110:32:441
984799200,5cyclictest0-21swapper/108:27:401
984799200,5cyclictest0-21swapper/108:27:401
984799200,15cyclictest0-21swapper/110:02:361
984699208,12cyclictest0-21swapper/011:44:260
984699202,9cyclictest24094-21diskmemload11:12:370
9846992010,6cyclictest0-21swapper/012:06:570
9846992010,3cyclictest0-21swapper/009:52:340
984699200,11cyclictest0-21swapper/007:37:390
1913622010,0sleep10-21swapper/112:36:431
984799196,13cyclictest19703-21kworker/1:211:04:201
984799192,12cyclictest0-21swapper/107:17:381
9847991915,3cyclictest30377-21ssh10:38:111
9847991912,4cyclictest0-21swapper/111:29:461
9847991910,8cyclictest0-21swapper/112:23:041
9847991910,5cyclictest0-21swapper/112:12:241
9847991910,4cyclictest0-21swapper/109:15:061
9847991910,4cyclictest0-21swapper/108:47:371
984799190,8cyclictest0-21swapper/108:57:401
9846991919,0cyclictest0-21swapper/008:47:570
984699191,2cyclictest0-21swapper/011:59:050
984699191,11cyclictest0-21swapper/011:01:560
9846991910,4cyclictest0-21swapper/008:52:410
9846991910,3cyclictest0-21swapper/010:40:100
9846991910,2cyclictest0-21swapper/010:00:470
2877521910,0sleep00-21swapper/011:19:260
2362321910,0sleep00-21swapper/009:02:520
984799182,8cyclictest0-21swapper/109:02:391
9847991815,3cyclictest19753-21apache209:24:561
9847991814,3cyclictest19776-21apache209:08:311
9847991811,1cyclictest0-21swapper/107:47:431
9847991810,8cyclictest0-21swapper/107:07:431
9847991810,5cyclictest0-21swapper/107:52:421
9847991810,4cyclictest19776-21apache208:42:421
9847991810,4cyclictest0-21swapper/111:46:221
9847991810,2cyclictest0-21swapper/108:02:431
984699189,3cyclictest0-21swapper/010:43:280
984699186,9cyclictest9668-21/usr/sbin/munin08:27:430
984699186,9cyclictest9668-21/usr/sbin/munin08:27:430
9846991814,3cyclictest106150irq/114-eth2-tx08:00:020
984699181,17cyclictest0-21swapper/009:30:100
9846991810,3cyclictest0-21swapper/008:22:430
9846991810,2cyclictest0-21swapper/007:17:400
984699180,16cyclictest0-21swapper/007:34:310
984699180,10cyclictest0-21swapper/010:22:360
9847991715,1cyclictest19096-21seq07:29:311
9847991710,3cyclictest0-21swapper/108:12:421
984799170,10cyclictest0-21swapper/107:12:461
984699178,4cyclictest81ktimersoftd/008:02:450
984699173,5cyclictest24094-21diskmemload11:32:380
9846991715,1cyclictest81ktimersoftd/007:42:370
9846991710,4cyclictest0-21swapper/008:32:260
9846991710,2cyclictest0-21swapper/008:57:360
984799166,9cyclictest0-21swapper/107:42:361
984799163,9cyclictest20215-21munin-run08:57:231
984799163,6cyclictest0-21swapper/108:07:371
984799162,8cyclictest0-21swapper/107:32:361
9847991610,3cyclictest0-21swapper/107:22:361
9846991610,6cyclictest0-21swapper/008:39:440
9846991610,6cyclictest0-21swapper/007:23:460
9846991610,2cyclictest0-21swapper/007:52:410
9846991610,1cyclictest0-21swapper/010:32:400
9847991510,2cyclictest0-21swapper/108:32:361
984699157,5cyclictest0-21swapper/008:12:380
984699154,5cyclictest0-21swapper/008:07:380
984699142,4cyclictest10154-21/usr/sbin/munin07:07:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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