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2025-06-14 - 12:36
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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 Sat Jun 14, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2900221070,0sleep129004-21ntpq21:48:161
1609527550,21sleep10-21swapper/119:07:491
1592226655,7sleep00-21swapper/019:06:010
16292993310,22cyclictest0-21swapper/023:22:000
16293993110,20cyclictest0-21swapper/100:07:311
16292992910,15cyclictest0-21swapper/022:33:510
16293992810,16cyclictest0-21swapper/119:40:291
16292992810,17cyclictest0-21swapper/000:26:310
16293992710,16cyclictest0-21swapper/123:52:271
1629399270,5cyclictest0-21swapper/120:48:211
16292992725,1cyclictest0-21swapper/022:39:140
16292992710,14cyclictest0-21swapper/000:36:390
16293992626,0cyclictest0-21swapper/119:09:181
1629399260,4cyclictest0-21swapper/122:48:171
1629299267,6cyclictest10080-21grep21:23:170
16292992610,0cyclictest0-21swapper/021:21:500
1629299260,18cyclictest8271-21kworker/0:222:23:200
16293992519,5cyclictest12929-21apache200:14:591
1629399251,23cyclictest2890-21ls21:13:201
16293992510,2cyclictest0-21swapper/121:31:411
1629399250,25cyclictest0-21swapper/122:13:341
1629399250,22cyclictest0-21swapper/100:18:231
1629399244,10cyclictest0-21swapper/123:53:181
16293992421,2cyclictest8302-21ssh22:47:491
16293992410,3cyclictest0-21swapper/122:23:161
1629399240,2cyclictest0-21swapper/121:46:571
1629399240,21cyclictest0-21swapper/121:22:591
16292992418,5cyclictest12929-21apache223:37:180
16292992410,8cyclictest0-21swapper/019:48:130
16292992410,1cyclictest0-21swapper/021:59:120
16292992410,10cyclictest0-21swapper/000:14:170
1629399232,4cyclictest0-21swapper/122:22:341
16293992313,9cyclictest636-21nscd23:40:521
16293992312,8cyclictest12929-21apache222:34:111
16293992310,12cyclictest0-21swapper/122:04:281
1629299238,9cyclictest15258-21ssh23:38:360
1629299231,21cyclictest0-21swapper/023:24:280
1629299231,20cyclictest0-21swapper/022:03:360
16292992310,8cyclictest0-21swapper/022:53:130
1629299230,14cyclictest0-21swapper/020:58:160
1629399229,12cyclictest15218-21kworker/u4:021:42:561
16293992218,3cyclictest0-21swapper/100:09:211
1629299222,9cyclictest0-21swapper/023:32:180
1629299222,18cyclictest717-21snmpd00:19:050
1629299222,18cyclictest0-21swapper/022:59:120
16292992217,5cyclictest12941-21apache200:09:250
16292992212,4cyclictest0-21swapper/022:45:180
16292992210,5cyclictest0-21swapper/020:53:140
16292992210,2cyclictest0-21swapper/023:17:340
1629299220,21cyclictest0-21swapper/021:48:090
1629299220,20cyclictest0-21swapper/023:09:150
129572220,1sleep00-21swapper/020:23:120
1629399211,2cyclictest0-21swapper/122:09:201
16293992111,0cyclictest0-21swapper/122:38:191
16293992110,5cyclictest0-21swapper/123:23:151
1629399210,21cyclictest0-21swapper/122:53:361
1629299213,18cyclictest0-21swapper/021:56:350
1629299213,14cyclictest0-21swapper/021:08:580
1629299211,19cyclictest0-21swapper/023:54:090
16292992110,8cyclictest0-21swapper/022:09:320
1629299210,15cyclictest0-21swapper/021:03:120
16293992017,2cyclictest19279-21ssh23:02:231
16293992017,2cyclictest12929-21apache222:02:321
16293992013,5cyclictest717-21snmpd20:28:311
1629399201,12cyclictest0-21swapper/120:53:151
16293992010,7cyclictest0-21swapper/123:33:201
16293992010,7cyclictest0-21swapper/119:37:371
16293992010,4cyclictest0-21swapper/119:18:171
1629399200,3cyclictest0-21swapper/100:01:191
1629399200,0cyclictest0-21swapper/121:36:481
1629299203,12cyclictest0-21swapper/023:48:260
16292992020,0cyclictest81ktimersoftd/023:06:000
16292992018,1cyclictest12929-21apache221:38:140
16292992015,3cyclictest0-21swapper/019:28:200
16292992010,6cyclictest0-21swapper/000:05:140
16292992010,3cyclictest0-21swapper/020:08:210
1629299200,19cyclictest27686-21ssh22:29:200
917221910,0sleep10-21swapper/123:32:021
3106721910,0sleep00-21swapper/019:43:370
1629399194,2cyclictest0-21swapper/100:30:121
1629399192,6cyclictest0-21swapper/121:53:171
16293991912,3cyclictest0-21swapper/100:27:581
16293991910,4cyclictest0-21swapper/123:07:481
16293991910,2cyclictest0-21swapper/100:34:221
16293991910,1cyclictest0-21swapper/123:09:431
1629299196,6cyclictest10357-21sshd20:15:200
1629299196,10cyclictest0-21swapper/020:03:170
1629299195,10cyclictest0-21swapper/021:13:180
1629299194,6cyclictest0-21swapper/019:12:590
16292991917,1cyclictest15815-21ls20:28:220
16292991917,1cyclictest0-21swapper/021:28:210
16292991915,4cyclictest12941-21apache223:59:360
16292991910,7cyclictest0-21swapper/021:34:360
16292991910,3cyclictest0-21swapper/000:28:090
16292991910,0cyclictest0-21swapper/020:48:320
1000321910,0sleep00-21swapper/022:48:280
2176721810,1sleep00-21swapper/020:43:380
1629399183,8cyclictest0-21swapper/119:48:121
1629399183,5cyclictest0-21swapper/122:28:171
1629399182,9cyclictest0-21swapper/120:43:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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