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2025-12-02 - 05:33
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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 rackcslot2.osadl.org (updated Tue Dec 02, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
695027157,9sleep10-21swapper/119:06:211
662327158,8sleep00-21swapper/019:02:560
7164994010,4cyclictest0-21swapper/123:47:011
7163993710,27cyclictest0-21swapper/000:19:130
7164992810,4cyclictest0-21swapper/100:00:291
7164992726,0cyclictest0-21swapper/123:23:591
716499272,23cyclictest11286-21kworker/1:021:51:171
716499270,1cyclictest373-21ssh22:51:271
716499261,22cyclictest0-21swapper/121:26:201
7163992624,1cyclictest0-21swapper/023:34:390
7163992621,4cyclictest817-21apache222:48:560
7164992510,6cyclictest0-21swapper/119:16:571
7164992510,2cyclictest0-21swapper/120:02:021
7163992525,0cyclictest0-21swapper/021:58:230
7163992519,4cyclictest18115-21cat20:57:030
7163992510,3cyclictest0-21swapper/021:37:050
7163992510,13cyclictest0-21swapper/022:01:560
7164992410,8cyclictest0-21swapper/122:41:581
7163992418,5cyclictest28001-21apache221:06:430
7163992410,6cyclictest0-21swapper/021:33:030
7163992410,5cyclictest0-21swapper/021:47:210
7163992410,14cyclictest0-21swapper/023:56:330
7164992323,0cyclictest0-21swapper/121:16:551
716499232,12cyclictest0-21swapper/122:38:181
7164992310,8cyclictest0-21swapper/121:28:571
716399232,5cyclictest0-21swapper/022:31:320
7163992321,1cyclictest0-21swapper/023:27:140
7163992314,4cyclictest28563-21/usr/sbin/munin21:17:010
716399231,17cyclictest11945-21/usr/sbin/munin23:06:550
7163992310,4cyclictest0-21swapper/023:46:580
7163992310,4cyclictest0-21swapper/023:13:220
716399230,4cyclictest0-21swapper/022:32:320
7164992211,3cyclictest0-21swapper/123:36:551
716499220,3cyclictest0-21swapper/122:14:501
716499220,21cyclictest15958-21kworker/1:000:02:331
7163992220,1cyclictest0-21swapper/020:31:500
7163992218,3cyclictest28001-21apache223:59:250
7163992216,4cyclictest28031-21apache223:06:330
7163992214,5cyclictest18540-21snmpd23:20:380
7163992210,9cyclictest0-21swapper/020:20:470
716399220,3cyclictest0-21swapper/021:53:050
716399220,21cyclictest24347-21kworker/0:020:55:380
716399220,0cyclictest0-21swapper/022:25:410
716499215,5cyclictest16197-21ssh22:27:031
716499211,19cyclictest0-21swapper/121:52:401
7164992111,3cyclictest0-21swapper/121:41:591
7164992110,7cyclictest0-21swapper/123:07:291
7164992110,5cyclictest0-21swapper/121:14:271
7164992110,0cyclictest0-21swapper/123:13:491
716499210,9cyclictest0-21swapper/100:21:581
716499210,3cyclictest0-21swapper/121:57:361
716499210,0cyclictest0-21swapper/123:27:231
716399216,4cyclictest0-21swapper/021:41:550
716399213,8cyclictest20726-21diskmemload22:57:010
7163992120,1cyclictest0-21swapper/023:26:150
7163992110,11cyclictest0-21swapper/022:18:150
2355322110,1sleep10-21swapper/121:09:421
716499206,11cyclictest0-21swapper/122:56:571
716499205,10cyclictest0-21swapper/120:36:541
716499204,10cyclictest0-21swapper/120:41:561
7164992018,1cyclictest7160-21cyclictest23:19:101
7164992011,3cyclictest0-21swapper/120:17:011
716499201,10cyclictest0-21swapper/119:56:571
7164992010,7cyclictest0-21swapper/100:26:491
7164992010,5cyclictest0-21swapper/122:32:041
7164992010,4cyclictest0-21swapper/123:01:571
7164992010,4cyclictest0-21swapper/122:22:551
7164992010,4cyclictest0-21swapper/121:01:591
7164992010,4cyclictest0-21swapper/119:22:011
7164992010,2cyclictest0-21swapper/123:42:201
716499200,6cyclictest0-21swapper/119:37:031
7163992019,0cyclictest28031-21apache200:34:030
7163992017,3cyclictest636-21nscd21:30:170
7163992015,3cyclictest11348-21fschecks_time19:16:560
7163992010,5cyclictest0-21swapper/022:12:390
7163992010,1cyclictest0-21swapper/021:24:350
7163992010,1cyclictest0-21swapper/021:01:550
2732022010,0sleep00-21swapper/000:12:340
716499197,6cyclictest0-21swapper/120:31:561
716499196,7cyclictest168-21systemd-journal22:03:561
716499194,8cyclictest0-21swapper/119:51:551
7164991917,1cyclictest30705-21ls00:17:001
7164991910,6cyclictest0-21swapper/121:32:301
7164991910,6cyclictest0-21swapper/120:21:551
7164991910,5cyclictest0-21swapper/120:13:391
7164991910,4cyclictest0-21swapper/120:27:031
7164991910,3cyclictest0-21swapper/122:06:521
7164991910,2cyclictest0-21swapper/120:46:581
7164991910,2cyclictest0-21swapper/119:11:571
7164991910,0cyclictest0-21swapper/123:54:321
7164991910,0cyclictest0-21swapper/100:08:571
716499190,12cyclictest0-21swapper/122:52:031
716399193,9cyclictest0-21swapper/019:41:570
716399192,7cyclictest0-21swapper/020:06:590
7163991916,2cyclictest0-21swapper/020:42:010
7163991910,4cyclictest0-21swapper/020:26:560
7163991910,0cyclictest0-21swapper/022:45:410
1334421910,0sleep10-21swapper/121:39:381
716499189,5cyclictest636-21nscd23:34:541
7164991812,5cyclictest16774-21cpu19:31:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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