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2026-06-25 - 11:43
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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 Thu Jun 25, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3165726652,9sleep10-21swapper/119:06:011
3159426655,7sleep00-21swapper/019:05:200
32089993433,1cyclictest0-21swapper/121:01:361
32088993210,20cyclictest0-21swapper/022:01:370
3208999310,19cyclictest0-21swapper/121:11:171
3208999280,25cyclictest6092-21ssh21:41:081
32089992726,1cyclictest0-21swapper/123:19:281
32088992726,0cyclictest0-21swapper/022:49:510
3208999261,1cyclictest22578-21ssh22:48:221
3208899267,18cyclictest0-21swapper/023:15:370
32088992626,0cyclictest0-21swapper/019:45:530
32088992618,3cyclictest32086-21cyclictest20:23:490
32089992510,12cyclictest0-21swapper/123:46:251
32088992520,3cyclictest6054-21apache222:47:470
32088992510,0cyclictest0-21swapper/023:09:490
32088992510,0cyclictest0-21swapper/021:29:010
3208899250,25cyclictest0-21swapper/023:27:170
32089992423,1cyclictest0-21swapper/121:32:351
32089992418,5cyclictest6054-21apache200:12:141
32089992410,10cyclictest0-21swapper/123:30:441
3208999240,1cyclictest0-21swapper/122:48:551
3208999240,13cyclictest0-21swapper/119:13:471
32088992419,3cyclictest6054-21apache221:43:190
32088992410,8cyclictest100250irq/107-eth1-rx23:23:170
32088992410,8cyclictest0-21swapper/000:13:450
32088992410,4cyclictest0-21swapper/000:28:490
32088992410,10cyclictest0-21swapper/020:08:500
32089992321,1cyclictest0-21swapper/123:57:401
32089992319,3cyclictest705-21ntpd20:42:351
32089992318,4cyclictest21810-21ssh21:18:481
32089992317,4cyclictest705-21ntpd23:42:481
32089992311,11cyclictest0-21swapper/122:36:171
32089992310,3cyclictest0-21swapper/123:23:581
32088992323,0cyclictest0-21swapper/023:37:360
32088992310,9cyclictest0-21swapper/022:40:580
3208899230,18cyclictest0-21swapper/000:05:570
1485122310,0sleep00-21swapper/022:37:190
3208999226,10cyclictest0-21swapper/121:58:481
32089992222,0cyclictest0-21swapper/119:24:181
32089992220,1cyclictest705-21ntpd21:33:541
32089992218,2cyclictest705-21ntpd21:27:041
32089992216,6cyclictest6029-21apache219:47:261
32089992210,6cyclictest0-21swapper/120:53:531
32089992210,5cyclictest0-21swapper/123:13:491
3208899224,5cyclictest0-21swapper/023:53:490
3208899223,10cyclictest11847-21/usr/sbin/munin21:03:480
32088992221,1cyclictest6054-21apache223:46:090
32088992218,3cyclictest32086-21cyclictest21:23:450
32088992218,2cyclictest0-21swapper/021:08:520
32088992214,6cyclictest100150irq/106-eth1-rx22:32:340
32088992211,9cyclictest6054-21apache223:05:040
32088992210,9cyclictest0-21swapper/022:18:060
32088992210,3cyclictest0-21swapper/023:38:380
3208899220,1cyclictest0-21swapper/000:22:210
3208899220,16cyclictest0-21swapper/021:33:520
3208999218,9cyclictest0-21swapper/119:53:511
3208999218,7cyclictest636-21nscd21:43:491
3208999215,9cyclictest0-21swapper/120:23:461
3208999215,7cyclictest0-21swapper/120:28:481
3208999213,10cyclictest0-21swapper/119:08:561
3208999212,19cyclictest0-21swapper/121:06:041
32089992119,1cyclictest6054-21apache200:29:531
32089992116,3cyclictest6029-21apache222:27:521
32089992110,9cyclictest0-21swapper/120:13:501
32089992110,5cyclictest27892-21grep20:18:571
3208899213,11cyclictest20014-21/usr/sbin/munin23:28:470
32088992110,3cyclictest0-21swapper/020:58:540
916422010,0sleep00-21swapper/021:44:350
3208999205,11cyclictest0-21swapper/120:03:461
3208999204,11cyclictest0-21swapper/123:08:461
32089992016,3cyclictest0-21swapper/122:29:121
32089992014,5cyclictest6054-21apache222:09:171
32089992010,5cyclictest0-21swapper/122:53:481
32089992010,3cyclictest0-21swapper/100:23:461
32089992010,2cyclictest0-21swapper/120:48:471
32089992010,1cyclictest0-21swapper/100:05:371
3208899205,9cyclictest0-21swapper/020:28:490
3208899201,8cyclictest10950-21kworker/u4:221:51:330
32088992010,6cyclictest0-21swapper/021:53:530
32088992010,4cyclictest0-21swapper/023:59:330
32088992010,4cyclictest0-21swapper/021:14:160
32088992010,4cyclictest0-21swapper/019:29:360
32088992010,3cyclictest0-21swapper/019:48:480
1791622010,0sleep10-21swapper/122:41:051
3208999197,8cyclictest13322-21diskmemload00:03:141
3208999195,7cyclictest0-21swapper/122:13:481
32089991919,0cyclictest0-21swapper/119:40:241
32089991915,1cyclictest0-21swapper/121:52:401
32089991910,6cyclictest0-21swapper/121:56:241
32089991910,4cyclictest0-21swapper/123:00:211
32089991910,4cyclictest0-21swapper/121:18:061
32089991910,3cyclictest0-21swapper/119:48:481
3208899194,4cyclictest0-21swapper/022:53:550
3208899194,13cyclictest100150irq/106-eth1-rx21:20:590
32088991919,0cyclictest0-21swapper/022:23:570
32088991919,0cyclictest0-21swapper/000:35:350
32088991917,2cyclictest6029-21apache222:12:410
32088991912,2cyclictest0-21swapper/020:53:460
32088991910,5cyclictest100250irq/107-eth1-rx00:27:400
32088991910,3cyclictest0-21swapper/023:01:450
32088991910,3cyclictest0-21swapper/019:23:470
2575221910,0sleep10-21swapper/123:36:281
1925621910,0sleep10-21swapper/119:58:501
148721910,0sleep10-21swapper/120:36:011
3208999183,8cyclictest0-21swapper/100:13:491
3208999183,10cyclictest0-21swapper/122:03:511
3208999182,6cyclictest0-21swapper/100:33:471
32089991814,1cyclictest231ktimersoftd/122:19:301
32089991810,5cyclictest0-21swapper/123:08:091
32089991810,5cyclictest0-21swapper/119:32:531
3208999180,3cyclictest0-21swapper/123:51:191
3208999180,15cyclictest0-21swapper/100:22:311
3208899184,9cyclictest0-21swapper/019:38:490
32088991818,0cyclictest0-21swapper/022:05:090
32088991814,3cyclictest0-21swapper/020:33:540
32088991813,5cyclictest100250irq/107-eth1-rx00:11:030
32088991813,4cyclictest1305-21munin-node20:06:510
32088991810,4cyclictest0-21swapper/020:19:520
32088991810,3cyclictest0-21swapper/019:08:510
32088991810,1cyclictest0-21swapper/022:19:250
32089991710,2cyclictest0-21swapper/120:08:551
3208899173,9cyclictest0-21swapper/023:48:510
3208999164,7cyclictest0-21swapper/119:18:521
3208999163,8cyclictest0-21swapper/120:43:481
32089991610,4cyclictest0-21swapper/119:33:481
3208899166,4cyclictest3582-21apache_volume19:18:460
3208899163,10cyclictest0-21swapper/019:58:540
3208899162,11cyclictest0-21swapper/019:33:500
32088991616,0cyclictest0-21swapper/020:48:530
32088991613,1cyclictest0-21swapper/020:44:280
32088991610,2cyclictest0-21swapper/019:15:460
3208899155,5cyclictest0-21swapper/019:53:470
3208899154,5cyclictest0-21swapper/020:13:490
32088991410,2cyclictest0-21swapper/020:38:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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