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2026-07-07 - 01:43
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Mon Jul 06, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
264027259,8sleep00-21swapper/007:07:410
247226952,9sleep10-21swapper/107:05:551
72182650,0sleep10-21swapper/110:58:381
247412600,1sleep10-21swapper/110:38:451
2901993510,23cyclictest0-21swapper/010:01:450
2902993410,0cyclictest0-21swapper/109:10:211
2902993232,0cyclictest0-21swapper/112:09:451
2901992810,6cyclictest0-21swapper/011:23:430
2901992727,0cyclictest0-21swapper/011:33:360
290199270,0cyclictest0-21swapper/011:42:540
2902992510,11cyclictest0-21swapper/111:22:001
2901992520,3cyclictest2899-21cyclictest09:13:430
290199251,2cyclictest13556-21/usr/sbin/munin12:28:500
290199251,2cyclictest13556-21/usr/sbin/munin12:28:500
290299246,15cyclictest0-21swapper/111:23:441
2902992414,9cyclictest0-21swapper/112:37:471
290299241,22cyclictest19540-21cat11:13:421
290299241,22cyclictest0-21swapper/111:39:231
290299241,22cyclictest0-21swapper/110:15:521
2902992410,9cyclictest0-21swapper/111:54:431
2901992424,0cyclictest0-21swapper/009:48:100
2901992423,1cyclictest0-21swapper/009:21:370
2901992419,5cyclictest12779-21apache210:21:230
2901992410,10cyclictest0-21swapper/012:08:310
2901992410,0cyclictest0-21swapper/010:35:060
290199240,13cyclictest0-21swapper/009:28:420
2902992310,6cyclictest0-21swapper/110:03:461
2902992310,4cyclictest0-21swapper/111:33:381
290299230,9cyclictest10754-21fw_packets11:43:421
290199230,1cyclictest0-21swapper/010:04:390
290299224,9cyclictest744-21snmpd08:08:401
290299222,5cyclictest0-21swapper/109:43:051
2902992218,2cyclictest0-21swapper/108:13:441
2901992221,0cyclictest0-21swapper/012:36:270
2901992210,7cyclictest11530-21ssh11:03:410
2901992210,7cyclictest0-21swapper/008:18:410
2901992210,4cyclictest0-21swapper/011:48:330
2901992210,4cyclictest0-21swapper/011:08:330
290299215,11cyclictest0-21swapper/109:03:421
290299214,13cyclictest0-21swapper/108:42:451
290299213,9cyclictest0-21swapper/109:00:481
2902992115,5cyclictest100150irq/106-eth1-rx12:03:471
2902992113,4cyclictest0-21swapper/109:33:411
2902992110,6cyclictest0-21swapper/110:09:561
2902992110,3cyclictest0-21swapper/110:18:411
290199219,9cyclictest0-21swapper/007:08:440
290199219,7cyclictest0-21swapper/010:38:400
290199213,17cyclictest0-21swapper/012:14:050
290199212,8cyclictest17851-21ls07:43:500
290199212,3cyclictest0-21swapper/010:44:570
2901992120,0cyclictest636-21nscd10:49:010
290199211,9cyclictest0-21swapper/010:58:430
2901992111,5cyclictest0-21swapper/008:38:450
2198622110,0sleep10-21swapper/110:35:001
1118922110,2sleep00-21swapper/008:53:430
732422010,0sleep00-21swapper/010:17:120
290299206,8cyclictest0-21swapper/108:23:451
290299204,5cyclictest0-21swapper/107:43:421
290299204,10cyclictest0-21swapper/112:13:491
290299202,12cyclictest0-21swapper/109:13:441
290299202,11cyclictest9759-21python07:23:481
2902992020,0cyclictest0-21swapper/108:35:081
290299201,7cyclictest31140-21df_inode11:28:421
2902992016,2cyclictest12779-21apache212:27:161
2902992014,3cyclictest12779-21apache210:28:041
2902992010,7cyclictest0-21swapper/109:58:281
2902992010,6cyclictest0-21swapper/109:47:551
2902992010,6cyclictest0-21swapper/107:39:001
2902992010,5cyclictest0-21swapper/110:31:491
2902992010,5cyclictest0-21swapper/109:52:241
2902992010,0cyclictest0-21swapper/109:31:281
290299200,5cyclictest0-21swapper/112:19:101
290199206,9cyclictest0-21swapper/008:03:400
2901992020,0cyclictest0-21swapper/009:07:250
2901992015,2cyclictest32238-21uptime11:28:500
2901992013,3cyclictest14545-21ssh10:26:070
2901992010,6cyclictest0-21swapper/010:08:450
2901992010,5cyclictest0-21swapper/010:28:500
2901992010,5cyclictest0-21swapper/008:13:470
1806722010,0sleep10-21swapper/111:53:201
323942190,0sleep10-21swapper/110:48:451
290299194,9cyclictest0-21swapper/111:03:411
290299194,6cyclictest0-21swapper/109:26:411
2902991918,1cyclictest12792-21apache212:02:151
2902991912,4cyclictest744-21snmpd09:19:131
2902991910,4cyclictest0-21swapper/107:31:191
290199196,8cyclictest0-21swapper/011:13:490
290199195,6cyclictest0-21swapper/008:58:420
2901991911,5cyclictest100350irq/108-eth1-tx10:55:370
2901991910,5cyclictest0-21swapper/008:33:410
2901991910,3cyclictest0-21swapper/011:58:460
2901991910,2cyclictest0-21swapper/007:23:410
2901991910,1cyclictest0-21swapper/011:45:480
2901991910,0cyclictest0-21swapper/011:21:080
2623421910,0sleep10-21swapper/109:59:041
96421810,0sleep00-21swapper/008:23:560
290299186,9cyclictest0-21swapper/107:58:401
290299186,8cyclictest0-21swapper/108:43:491
290299186,8cyclictest0-21swapper/108:43:491
290299183,11cyclictest0-21swapper/107:18:411
290299182,11cyclictest0-21swapper/108:28:451
2902991816,1cyclictest12792-21apache210:44:581
2902991810,5cyclictest0-21swapper/111:09:441
2902991810,3cyclictest0-21swapper/112:28:451
2902991810,3cyclictest0-21swapper/112:28:451
2902991810,0cyclictest0-21swapper/107:55:011
290299180,6cyclictest0-21swapper/108:03:431
290199189,6cyclictest18858-21/usr/sbin/munin11:53:460
290199183,7cyclictest0-21swapper/007:53:450
290199182,11cyclictest100250irq/107-eth1-rx12:04:010
2901991813,3cyclictest22721-21munin-node09:39:030
2901991812,3cyclictest0-21swapper/009:08:430
2901991810,7cyclictest0-21swapper/008:02:230
290199180,10cyclictest0-21swapper/009:53:460
845921710,0sleep00-21swapper/012:21:420
290299175,6cyclictest18637-21apache_processe07:48:411
290299174,8cyclictest0-21swapper/107:13:461
2902991710,5cyclictest0-21swapper/108:53:471
2902991710,2cyclictest0-21swapper/108:18:381
2902991710,0cyclictest0-21swapper/110:54:411
290199173,5cyclictest12468-21dpkg07:33:290
290199172,5cyclictest0-21swapper/008:43:410
290199172,5cyclictest0-21swapper/008:43:410
2901991716,1cyclictest0-21swapper/007:21:520
2901991710,3cyclictest0-21swapper/007:33:410
2901991710,2cyclictest0-21swapper/007:13:420
1435821710,1sleep10-21swapper/107:35:561
290299164,7cyclictest0-21swapper/108:48:421
2902991610,3cyclictest0-21swapper/107:08:441
290199165,7cyclictest29274-21cstates09:23:400
290199165,6cyclictest0-21swapper/007:48:410
290199164,9cyclictest0-21swapper/008:28:400
290199163,5cyclictest17212-21ssh09:48:410
2901991612,3cyclictest12792-21apache212:23:320
2901991610,3cyclictest0-21swapper/007:38:400
290199152,6cyclictest0-21swapper/009:33:390
2901991510,4cyclictest12796-21kworker/0:008:09:130
2901991510,1cyclictest0-21swapper/008:48:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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