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2026-01-11 - 23:09
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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 Sun Jan 11, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1262027147,18sleep10-21swapper/107:05:081
286822680,1sleep00-21swapper/009:51:140
286822680,1sleep00-21swapper/009:51:140
1311126546,14sleep00-21swapper/007:05:130
14101993210,22cyclictest0-21swapper/111:38:011
1410199310,1cyclictest11871-21latency_hist12:24:501
14100993110,20cyclictest0-21swapper/009:14:590
14100992910,2cyclictest0-21swapper/010:06:080
1410199280,0cyclictest19873-21ssh09:40:071
14100992724,2cyclictest30739-21ssh09:12:140
14101992617,4cyclictest23950-21apache209:46:061
14101992610,7cyclictest0-21swapper/111:02:091
14101992610,7cyclictest0-21swapper/109:55:351
14101992610,6cyclictest0-21swapper/112:03:251
14100992623,3cyclictest23976-21apache210:46:530
14100992610,4cyclictest0-21swapper/011:25:010
14100992610,14cyclictest0-21swapper/010:28:010
1410199250,18cyclictest32038-21ssh09:14:421
14100992517,7cyclictest23976-21apache212:17:330
14100992510,6cyclictest0-21swapper/012:05:550
14100992510,5cyclictest0-21swapper/010:20:070
1410199248,10cyclictest0-21swapper/108:20:031
14101992424,0cyclictest231ktimersoftd/110:25:111
14101992422,2cyclictest231ktimersoftd/107:43:321
14101992412,4cyclictest24-21ksoftirqd/109:35:071
14101992411,7cyclictest1013-21kworker/u4:110:19:561
14101992411,4cyclictest5894-21ntp_kernel_pll_08:10:071
14100992415,6cyclictest23950-21apache211:14:420
1410099240,18cyclictest0-21swapper/009:20:400
14101992316,4cyclictest100350irq/108-eth1-tx11:40:091
14101992310,6cyclictest0-21swapper/110:30:091
1410099232,20cyclictest0-21swapper/007:10:140
14100992310,6cyclictest0-21swapper/012:35:030
1410199227,13cyclictest0-21swapper/110:50:021
1410199225,12cyclictest0-21swapper/107:55:011
14101992220,1cyclictest24-21ksoftirqd/110:16:431
14101992220,1cyclictest24-21ksoftirqd/109:34:171
14101992220,1cyclictest24-21ksoftirqd/108:54:501
14101992216,4cyclictest0-21swapper/112:33:301
14101992216,3cyclictest32310-21rm09:14:561
14101992210,4cyclictest0-21swapper/110:04:551
14100992218,3cyclictest23950-21apache212:28:240
14100992211,7cyclictest23976-21apache212:21:510
14100992210,4cyclictest0-21swapper/010:15:040
14100992210,12cyclictest0-21swapper/007:59:380
1410099220,7cyclictest0-21swapper/011:22:130
1410199215,14cyclictest29714-21runrttasks09:53:381
1410199215,14cyclictest29714-21runrttasks09:53:381
1410199214,8cyclictest0-21swapper/108:00:121
14101992120,0cyclictest24-21ksoftirqd/109:29:501
14101992118,2cyclictest3694-21tune2fs10:45:041
14101992117,1cyclictest24-21ksoftirqd/109:20:571
14101992116,2cyclictest24-21ksoftirqd/112:09:221
14101992116,2cyclictest24-21ksoftirqd/110:59:501
1410199211,16cyclictest0-21swapper/111:45:081
1410199211,15cyclictest0-21swapper/112:36:021
14101992110,2cyclictest0-21swapper/108:34:521
1410099219,4cyclictest28128-21diskmemload11:40:000
1410099219,12cyclictest0-21swapper/012:00:050
1410099213,17cyclictest0-21swapper/010:10:020
14100992120,0cyclictest15439-21kworker/u4:011:15:230
1410099211,10cyclictest7941-21/usr/sbin/munin09:25:020
14100992110,10cyclictest0-21swapper/011:38:380
1410199206,7cyclictest28128-21diskmemload10:00:191
1410199203,6cyclictest29350-21ssh11:20:001
1410199202,10cyclictest1199-21runrttasks08:30:081
14101992014,4cyclictest744-21snmpd07:11:281
1410199201,12cyclictest0-21swapper/108:40:071
14101992010,6cyclictest0-21swapper/111:30:321
14101992010,3cyclictest0-21swapper/111:54:521
14101992010,3cyclictest0-21swapper/110:38:001
14101992010,2cyclictest0-21swapper/107:50:011
1410099203,16cyclictest0-21swapper/009:35:000
14100992018,2cyclictest0-21swapper/007:20:000
14100992017,1cyclictest0-21swapper/010:42:240
14100992016,4cyclictest23976-21apache208:02:410
14100992011,4cyclictest0-21swapper/008:35:020
14100992010,5cyclictest0-21swapper/008:45:090
14100992010,4cyclictest0-21swapper/011:55:010
14100992010,4cyclictest0-21swapper/009:42:320
14100992010,3cyclictest0-21swapper/012:30:000
14100992010,2cyclictest0-21swapper/007:49:520
14100992010,1cyclictest0-21swapper/011:08:070
1410199196,9cyclictest0-21swapper/108:05:031
14101991918,1cyclictest24-21ksoftirqd/107:34:501
14101991917,0cyclictest24-21ksoftirqd/111:51:531
14101991916,2cyclictest24-21ksoftirqd/111:05:431
14101991912,3cyclictest100250irq/107-eth1-rx12:18:091
14101991912,3cyclictest0-21swapper/110:14:311
14101991911,4cyclictest0-21swapper/107:30:051
14101991910,5cyclictest0-21swapper/112:10:071
14101991910,5cyclictest0-21swapper/108:45:011
14101991910,3cyclictest0-21swapper/110:40:041
14101991910,3cyclictest0-21swapper/108:25:031
1410099198,6cyclictest23976-21apache209:32:410
1410099195,9cyclictest0-21swapper/010:00:030
1410099192,5cyclictest28128-21diskmemload10:50:040
1410099192,11cyclictest0-21swapper/011:45:060
14100991915,4cyclictest23976-21apache208:24:330
1410099191,2cyclictest0-21swapper/011:33:190
14100991910,5cyclictest0-21swapper/012:10:050
14100991910,5cyclictest0-21swapper/009:47:320
14100991910,4cyclictest0-21swapper/010:30:070
14100991910,1cyclictest0-21swapper/010:57:380
1410199187,6cyclictest0-21swapper/108:15:101
1410199184,8cyclictest24979-21/usr/sbin/munin09:00:061
1410199183,5cyclictest0-21swapper/108:55:061
1410199182,11cyclictest0-21swapper/107:15:101
14101991816,1cyclictest24-21ksoftirqd/111:25:041
14101991816,1cyclictest24-21ksoftirqd/111:14:571
14101991816,1cyclictest24-21ksoftirqd/107:20:041
14101991814,3cyclictest0-21swapper/111:10:011
14101991810,4cyclictest0-21swapper/112:25:121
14101991810,3cyclictest0-21swapper/109:05:071
1410099188,8cyclictest0-21swapper/007:27:010
1410099183,9cyclictest23950-21apache209:05:060
1410099181,6cyclictest0-21swapper/011:00:070
14100991814,2cyclictest0-21swapper/011:50:100
14100991810,3cyclictest0-21swapper/008:42:510
14100991810,3cyclictest0-21swapper/008:15:040
14100991810,2cyclictest0-21swapper/008:50:060
14100991810,2cyclictest0-21swapper/007:17:160
14100991810,1cyclictest0-21swapper/009:55:040
1410099180,11cyclictest22064-21diskstats07:30:030
14101991710,4cyclictest0-21swapper/107:45:021
14101991710,4cyclictest0-21swapper/107:25:031
1410099178,0cyclictest0-21swapper/008:25:480
1410099175,7cyclictest3800-21/usr/sbin/munin08:05:060
14100991710,4cyclictest0-21swapper/007:40:070
14100991710,0cyclictest0-21swapper/008:09:580
1410099162,7cyclictest0-21swapper/010:35:100
1410099162,5cyclictest1199-21runrttasks09:00:010
14100991612,4cyclictest0-21swapper/008:56:250
14100991610,2cyclictest0-21swapper/007:34:500
1410099156,5cyclictest13356-21if_eth308:30:050
14100991510,1cyclictest0-21swapper/007:45:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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