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2025-10-26 - 02:15
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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 Sat Oct 25, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2107221370,1sleep02443999cyclictest10:47:120
2390328266,7sleep00-21swapper/007:03:150
300482690,1sleep00-21swapper/010:17:150
300482690,1sleep00-21swapper/010:17:150
2392426949,8sleep10-21swapper/107:03:281
199192480,0sleep10-21swapper/112:09:521
24440993610,0cyclictest0-21swapper/109:11:191
24439993310,3cyclictest0-21swapper/009:08:130
24440993129,2cyclictest0-21swapper/111:57:411
2444099300,0cyclictest0-21swapper/108:47:061
24439993010,5cyclictest0-21swapper/010:35:560
24439992810,0cyclictest0-21swapper/009:51:170
2444099260,1cyclictest0-21swapper/111:37:181
24439992623,1cyclictest0-21swapper/012:18:340
24439992620,5cyclictest1879-21apache211:39:120
24439992612,7cyclictest97850irq/107-eth1-rx09:53:370
24440992522,1cyclictest231ktimersoftd/110:47:151
2444099251,23cyclictest0-21swapper/110:56:301
24440992510,12cyclictest0-21swapper/110:35:021
24439992523,1cyclictest1905-21apache212:00:380
2443999250,23cyclictest0-21swapper/009:57:050
24440992420,3cyclictest1879-21apache211:30:161
24440992410,2cyclictest0-21swapper/110:22:051
2444099240,1cyclictest13830-21/usr/sbin/munin09:57:181
24439992414,6cyclictest1905-21apache210:24:170
24439992410,9cyclictest0-21swapper/009:13:340
2443999240,1cyclictest5650-21latency_hist07:41:570
2443999240,16cyclictest0-21swapper/011:28:520
2444099233,14cyclictest5934-21diskmemload12:32:121
24440992321,1cyclictest0-21swapper/110:09:371
24440992317,3cyclictest16767-21/usr/sbin/munin10:42:131
2444099230,6cyclictest0-21swapper/112:25:481
2443999232,3cyclictest0-21swapper/009:39:390
24439992319,3cyclictest1879-21apache209:35:590
2443999231,3cyclictest97850irq/107-eth1-rx11:56:220
2443999231,3cyclictest0-21swapper/010:52:550
24439992310,8cyclictest0-21swapper/010:37:090
24439992310,6cyclictest0-21swapper/010:02:290
24439992310,1cyclictest0-21swapper/012:29:180
2443999230,0cyclictest0-21swapper/009:44:570
2444099224,8cyclictest0-21swapper/112:27:191
24440992222,0cyclictest0-21swapper/111:16:371
24440992222,0cyclictest0-21swapper/108:37:161
24440992212,6cyclictest15623-21ssh11:22:021
2444099221,20cyclictest0-21swapper/108:12:101
24440992210,5cyclictest0-21swapper/107:27:121
24440992210,4cyclictest0-21swapper/109:14:081
24439992222,0cyclictest0-21swapper/012:09:550
24439992222,0cyclictest0-21swapper/009:31:280
24439992218,2cyclictest81ktimersoftd/010:12:090
722622110,0sleep10-21swapper/109:47:241
2782922110,0sleep10-21swapper/112:20:491
2444099218,7cyclictest16592-21unixbench_multi08:07:181
2444099215,11cyclictest0-21swapper/109:37:141
2444099213,11cyclictest0-21swapper/107:47:091
24440992115,2cyclictest0-21swapper/110:20:121
24440992115,2cyclictest0-21swapper/110:20:121
24440992110,8cyclictest0-21swapper/111:54:411
24440992110,8cyclictest0-21swapper/109:26:221
24440992110,5cyclictest0-21swapper/112:02:131
24440992110,2cyclictest0-21swapper/112:16:111
2443999218,11cyclictest0-21swapper/008:52:100
2443999215,11cyclictest0-21swapper/007:57:090
2443999214,8cyclictest0-21swapper/008:22:150
24439992117,3cyclictest1905-21apache210:42:530
24439992115,3cyclictest7765-21apache207:25:320
24439992110,8cyclictest0-21swapper/012:26:450
24439992110,6cyclictest0-21swapper/012:02:520
594822010,0sleep05955-21ssh12:34:400
2895322010,1sleep10-21swapper/109:34:461
2574322010,0sleep10-21swapper/108:32:161
24440992020,0cyclictest0-21swapper/109:21:021
24440992013,4cyclictest22907-21idleruntime-cro08:26:571
2444099201,1cyclictest0-21swapper/111:33:171
24440992010,6cyclictest23570-21snmpd09:01:591
24440992010,5cyclictest0-21swapper/111:17:121
24440992010,4cyclictest0-21swapper/110:27:101
24440992010,4cyclictest0-21swapper/109:42:021
24440992010,4cyclictest0-21swapper/109:30:131
24440992010,4cyclictest0-21swapper/107:22:111
2444099200,3cyclictest0-21swapper/111:07:281
2443999205,12cyclictest0-21swapper/008:47:100
2443999205,12cyclictest0-21swapper/007:12:120
24439992019,1cyclictest81ktimersoftd/011:22:180
24439992019,1cyclictest0-21swapper/008:42:150
2443999201,4cyclictest0-21swapper/009:18:260
24439992013,4cyclictest24629-21python11:32:210
24439992012,5cyclictest1833-21kworker/0:012:16:250
24439992012,1cyclictest97750irq/106-eth1-rx10:28:350
2443999200,1cyclictest0-21swapper/011:05:300
3146221910,0sleep00-21swapper/011:00:430
2444099195,12cyclictest31357-21/usr/sbin/munin11:42:121
24440991914,2cyclictest0-21swapper/109:53:071
24440991913,0cyclictest0-21swapper/108:52:111
24440991912,2cyclictest24-21ksoftirqd/110:38:501
2443999193,4cyclictest26775-21perf08:36:570
2443999193,1cyclictest0-21swapper/011:46:370
2443999192,3cyclictest0-21swapper/010:08:200
2443999191,5cyclictest0-21swapper/007:49:340
24439991910,6cyclictest7861-21ssh11:12:040
454421810,1sleep10-21swapper/111:48:441
2444099186,10cyclictest0-21swapper/107:55:201
2444099183,7cyclictest32563-21df11:02:121
24440991817,1cyclictest1905-21apache210:14:041
24440991816,1cyclictest0-21swapper/110:59:021
24440991812,3cyclictest0-21swapper/107:17:191
24440991810,3cyclictest0-21swapper/107:37:091
24440991810,2cyclictest0-21swapper/108:59:551
2444099180,10cyclictest0-21swapper/107:57:141
2443999187,10cyclictest0-21swapper/011:47:130
24439991814,2cyclictest81ktimersoftd/011:19:360
24439991810,6cyclictest1879-21apache208:27:150
24439991810,5cyclictest25144-21ls07:07:140
24439991810,5cyclictest0-21swapper/007:56:360
24439991810,1cyclictest0-21swapper/011:08:150
2443999180,1cyclictest0-21swapper/009:23:030
2842221710,1sleep00-21swapper/008:39:310
2444099172,7cyclictest0-21swapper/107:07:101
24440991715,1cyclictest0-21swapper/107:45:581
24440991710,2cyclictest0-21swapper/110:04:471
24440991710,2cyclictest0-21swapper/107:32:111
2444099170,10cyclictest0-21swapper/108:42:141
2443999173,5cyclictest1570-21apt-get07:31:570
24439991710,3cyclictest0-21swapper/007:17:190
24439991710,2cyclictest0-21swapper/007:42:160
24440991610,1cyclictest0-21swapper/108:29:041
24440991610,0cyclictest0-21swapper/107:12:161
2443999165,7cyclictest0-21swapper/008:07:160
2443999163,5cyclictest18330-21/usr/sbin/munin08:12:190
24439991611,0cyclictest19558-21fschecks_time08:17:120
24439991610,3cyclictest0-21swapper/008:57:150
24439991610,3cyclictest0-21swapper/007:32:150
24440991512,2cyclictest0-21swapper/108:17:111
24439991510,1cyclictest0-21swapper/008:04:520
24439991510,0cyclictest0-21swapper/009:02:160
24440991410,2cyclictest0-21swapper/108:02:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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