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2026-04-17 - 08:29
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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 Fri Apr 17, 2026 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1721527057,8sleep10-21swapper/119:06:411
1715127057,9sleep00-21swapper/019:06:020
98592680,0sleep10-21swapper/122:53:521
17631993222,10cyclictest0-21swapper/122:33:241
17631993115,16cyclictest0-21swapper/122:21:561
17631992923,6cyclictest0-21swapper/119:11:421
17631992917,12cyclictest0-21swapper/121:21:321
1763199290,28cyclictest0-21swapper/122:13:381
17631992828,0cyclictest0-21swapper/100:09:361
17631992810,1cyclictest0-21swapper/121:32:231
17631992710,1cyclictest0-21swapper/122:44:141
17630992712,8cyclictest0-21swapper/000:09:250
17630992710,6cyclictest0-21swapper/023:21:400
17631992614,9cyclictest231ktimersoftd/123:24:591
17631992610,11cyclictest0-21swapper/123:35:211
17630992614,8cyclictest10050irq/110-ahci[0020:44:230
17630992610,10cyclictest10050irq/110-ahci[0000:39:090
1763099260,2cyclictest26669-21python20:54:280
17631992520,3cyclictest21133-21apache222:43:081
17630992525,0cyclictest0-21swapper/019:44:240
17630992515,5cyclictest28543-21fschecks_count21:49:230
17630992424,0cyclictest0-21swapper/022:38:050
17630992410,8cyclictest0-21swapper/023:39:210
17630992410,7cyclictest0-21swapper/021:14:390
17631992323,0cyclictest0-21swapper/100:04:271
17631992322,1cyclictest21133-21apache222:26:281
17631992318,4cyclictest21133-21apache223:22:201
17631992310,2cyclictest0-21swapper/121:14:121
1763099237,11cyclictest0-21swapper/019:39:230
1763099236,16cyclictest0-21swapper/023:50:280
17630992320,2cyclictest11998-21ssh21:25:560
17630992317,6cyclictest21110-21apache221:31:470
1763099231,5cyclictest0-21swapper/022:48:370
1763199225,16cyclictest0-21swapper/123:14:291
17631992220,1cyclictest0-21swapper/100:33:291
17631992217,2cyclictest0-21swapper/123:54:581
17631992212,3cyclictest0-21swapper/120:59:181
17631992210,6cyclictest0-21swapper/120:19:201
17631992210,6cyclictest0-21swapper/100:19:231
1763199220,0cyclictest0-21swapper/119:42:401
1763099227,13cyclictest0-21swapper/019:09:280
1763099224,13cyclictest0-21swapper/023:59:190
17630992220,1cyclictest0-21swapper/020:08:550
17630992219,2cyclictest21110-21apache221:54:420
17630992216,2cyclictest6234-1kworker/u5:223:35:430
17630992210,9cyclictest0-21swapper/000:18:550
17630992210,5cyclictest0-21swapper/022:08:370
17630992210,4cyclictest0-21swapper/000:24:300
700022110,0sleep10-21swapper/122:04:231
3091022110,0sleep00-21swapper/000:07:480
1763199219,5cyclictest0-21swapper/123:50:571
1763199214,10cyclictest0-21swapper/123:44:301
17631992119,1cyclictest231ktimersoftd/100:24:121
17631992118,2cyclictest21133-21apache200:17:031
17631992118,2cyclictest21110-21apache222:03:071
17631992115,1cyclictest0-21swapper/121:11:011
1763199211,11cyclictest0-21swapper/120:34:221
17631992110,6cyclictest0-21swapper/123:05:581
17631992110,6cyclictest0-21swapper/122:18:481
17631992110,4cyclictest0-21swapper/120:44:261
1763099216,9cyclictest0-21swapper/023:14:260
1763099213,12cyclictest0-21swapper/020:49:290
17630992114,6cyclictest21110-21apache221:59:560
17630992110,4cyclictest0-21swapper/000:20:290
1763199204,10cyclictest0-21swapper/119:34:211
1763199203,11cyclictest0-21swapper/122:34:221
17631992016,4cyclictest0-21swapper/119:57:021
17631992012,6cyclictest0-21swapper/100:01:281
17631992010,5cyclictest0-21swapper/120:24:241
17631992010,3cyclictest0-21swapper/120:14:191
1763099207,8cyclictest0-21swapper/022:09:240
1763099204,12cyclictest0-21swapper/019:59:210
1763099202,4cyclictest0-21swapper/021:41:120
17630992010,4cyclictest0-21swapper/023:54:480
17630992010,4cyclictest0-21swapper/019:14:200
17630992010,2cyclictest0-21swapper/023:09:320
1763099200,20cyclictest0-21swapper/019:30:370
1763099200,0cyclictest0-21swapper/021:44:200
176092200,0sleep10-21swapper/100:36:391
1763199195,9cyclictest0-21swapper/119:19:221
1763199194,8cyclictest0-21swapper/119:29:281
1763199193,12cyclictest0-21swapper/121:04:281
17631991918,1cyclictest744-21snmpd22:54:391
17631991914,2cyclictest21133-21apache220:04:211
17631991910,3cyclictest0-21swapper/121:49:191
17631991910,2cyclictest0-21swapper/123:13:281
1763099195,7cyclictest0-21swapper/019:34:240
1763099194,6cyclictest13808-21/usr/sbin/munin22:14:280
17630991918,0cyclictest81ktimersoftd/023:44:260
17630991916,2cyclictest21133-21apache221:04:280
17630991910,7cyclictest0-21swapper/022:54:180
17630991910,5cyclictest100250irq/107-eth1-rx23:28:260
17630991910,5cyclictest0-21swapper/021:19:210
17630991910,5cyclictest0-21swapper/019:19:200
17630991910,2cyclictest0-21swapper/023:29:190
17630991910,0cyclictest0-21swapper/021:09:500
2426121810,0sleep00-21swapper/022:28:320
1918521810,0sleep00-21swapper/021:35:280
1763199188,6cyclictest0-21swapper/122:59:201
1763199186,6cyclictest0-21swapper/120:09:191
17631991814,2cyclictest0-21swapper/119:59:241
17631991811,4cyclictest21110-21apache220:39:241
17631991810,4cyclictest0-21swapper/123:44:011
17631991810,4cyclictest0-21swapper/121:54:501
17631991810,4cyclictest0-21swapper/121:34:201
1763199180,3cyclictest0-21swapper/121:45:371
1763099188,6cyclictest7283-21needreboot22:49:260
1763099186,7cyclictest21127-21apache222:39:190
1763099184,6cyclictest16370-21/usr/sbin/munin20:29:230
1763099183,7cyclictest0-21swapper/022:59:200
17630991810,7cyclictest0-21swapper/000:32:010
17630991810,4cyclictest0-21swapper/023:04:250
17630991810,4cyclictest0-21swapper/020:39:210
1763099180,12cyclictest0-21swapper/020:34:220
2125821710,0sleep10-21swapper/119:18:041
1763199174,8cyclictest0-21swapper/119:49:271
17631991710,6cyclictest0-21swapper/121:27:031
17631991710,4cyclictest0-21swapper/120:54:201
17631991710,3cyclictest0-21swapper/119:24:231
1763099174,9cyclictest0-21swapper/019:49:290
17630991715,1cyclictest0-21swapper/022:19:320
17630991710,3cyclictest0-21swapper/022:31:040
1763199169,3cyclictest0-21swapper/119:44:211
1763199165,9cyclictest0-21swapper/121:39:251
1763199164,7cyclictest0-21swapper/120:49:221
1763199164,5cyclictest3793-21/usr/sbin/munin23:29:241
1763099162,8cyclictest0-21swapper/019:54:200
17630991612,4cyclictest0-21swapper/020:26:430
17630991610,6cyclictest0-21swapper/020:19:200
17630991610,4cyclictest0-21swapper/020:14:240
17630991610,3cyclictest0-21swapper/021:02:580
17631991510,2cyclictest0-21swapper/120:29:231
1763099154,7cyclictest0-21swapper/019:24:270
17630991512,1cyclictest744-21snmpd20:10:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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