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2025-11-09 - 03:17
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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 Sun Nov 09, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
206362720,0sleep020632-21latency_hist21:51:510
372427149,17sleep10-21swapper/119:02:381
382026849,8sleep00-21swapper/019:03:380
431099290,28cyclictest4029-21kworker/1:122:33:361
4310992819,5cyclictest5942-21apache200:30:291
4310992816,6cyclictest5942-21apache221:22:361
430999280,27cyclictest0-21swapper/000:14:180
4310992722,3cyclictest5915-21apache223:10:271
431099270,0cyclictest0-21swapper/122:01:461
4310992610,6cyclictest0-21swapper/122:57:121
4309992624,1cyclictest32378-21timerwakeupswit20:17:130
4309992621,4cyclictest23570-21snmpd19:17:010
430999260,5cyclictest0-21swapper/023:58:000
4310992518,4cyclictest5915-21apache200:14:141
4309992525,0cyclictest0-21swapper/023:56:490
4309992521,1cyclictest0-21swapper/022:13:440
431099245,10cyclictest0-21swapper/121:37:041
4310992418,4cyclictest5915-21apache219:37:251
4310992418,2cyclictest15125-21diskmemload00:35:261
4309992418,4cyclictest5915-21apache221:14:000
4309992416,3cyclictest0-21swapper/000:18:040
431099232,9cyclictest0-21swapper/120:12:041
4310992322,0cyclictest0-21swapper/100:24:141
4310992318,3cyclictest5915-21apache200:18:041
4310992318,2cyclictest5915-21apache222:03:041
431099231,15cyclictest0-21swapper/121:13:431
4310992310,0cyclictest0-21swapper/122:37:051
431099230,22cyclictest0-21swapper/121:19:361
4309992323,0cyclictest0-21swapper/022:47:070
4309992319,3cyclictest5915-21apache223:13:590
430999230,22cyclictest0-21swapper/022:40:050
431099228,10cyclictest0-21swapper/122:27:021
431099224,17cyclictest4029-21kworker/1:121:36:021
431099223,10cyclictest0-21swapper/120:32:121
4310992218,3cyclictest0-21swapper/121:42:501
4310992216,5cyclictest26820-21tune2fs22:42:041
4310992210,4cyclictest0-21swapper/119:47:131
4310992210,10cyclictest0-21swapper/122:22:111
430999228,9cyclictest21259-21ssh23:17:050
430999225,11cyclictest0-21swapper/019:07:110
4309992210,6cyclictest0-21swapper/023:45:500
430999220,10cyclictest23570-21snmpd23:06:570
431099217,11cyclictest0-21swapper/119:22:071
431099211,8cyclictest11214-21apache_accesses23:47:051
4310992117,2cyclictest231ktimersoftd/121:46:571
4310992116,3cyclictest5942-21apache221:28:171
4310992110,9cyclictest0-21swapper/123:29:461
4310992110,4cyclictest0-21swapper/122:07:081
4310992110,3cyclictest0-21swapper/123:34:471
4310992110,3cyclictest0-21swapper/122:53:541
4310992110,1cyclictest0-21swapper/100:00:561
431099210,20cyclictest0-21swapper/121:08:011
430999215,10cyclictest0-21swapper/021:27:080
4309992116,4cyclictest5942-21apache221:09:050
4309992115,3cyclictest97850irq/107-eth1-rx23:51:450
4309992113,6cyclictest0-21swapper/021:17:220
430999211,18cyclictest0-21swapper/000:07:150
4309992110,6cyclictest0-21swapper/023:27:460
4309992110,6cyclictest0-21swapper/021:34:470
4309992110,4cyclictest0-21swapper/022:21:570
4309992110,3cyclictest0-21swapper/023:37:080
4309992110,3cyclictest0-21swapper/021:42:060
4309992110,1cyclictest0-21swapper/023:22:160
4309992110,11cyclictest0-21swapper/023:36:390
4309992110,0cyclictest0-21swapper/022:58:580
430999210,20cyclictest0-21swapper/000:31:340
431099205,10cyclictest0-21swapper/123:42:091
431099202,11cyclictest0-21swapper/120:17:111
430999205,8cyclictest0-21swapper/019:52:050
430999203,9cyclictest23384-21ls00:02:080
430999202,13cyclictest18035-21sed21:06:510
4309992015,3cyclictest0-21swapper/022:42:400
4309992010,5cyclictest0-21swapper/000:24:430
4309992010,2cyclictest0-21swapper/021:39:140
431099196,5cyclictest12332-21apache_accesses20:52:021
431099195,4cyclictest0-21swapper/119:52:061
431099194,15cyclictest4029-21kworker/1:122:51:481
431099192,7cyclictest0-21swapper/123:02:031
431099192,2cyclictest0-21swapper/122:12:281
4310991914,4cyclictest97750irq/106-eth1-rx19:12:111
4310991913,3cyclictest23570-21snmpd19:19:081
4310991911,2cyclictest0-21swapper/123:40:181
4310991910,6cyclictest0-21swapper/100:08:351
4310991910,4cyclictest0-21swapper/122:20:201
4310991910,2cyclictest0-21swapper/123:17:021
4310991910,0cyclictest0-21swapper/120:38:531
430999194,9cyclictest0-21swapper/020:52:070
430999194,8cyclictest0-21swapper/019:37:030
430999193,6cyclictest17928-21diskmemload22:52:080
430999192,12cyclictest0-21swapper/022:00:180
4309991910,4cyclictest0-21swapper/022:27:070
4309991910,4cyclictest0-21swapper/022:17:560
4309991910,4cyclictest0-21swapper/020:27:040
4309991910,4cyclictest0-21swapper/000:32:070
4309991910,2cyclictest0-21swapper/022:08:170
4310991816,1cyclictest231ktimersoftd/120:57:021
4310991813,3cyclictest817-21apache223:15:081
4310991811,3cyclictest4307-21cyclictest23:55:311
4310991810,5cyclictest0-21swapper/121:02:311
4310991810,4cyclictest0-21swapper/120:22:091
4310991810,4cyclictest0-21swapper/120:02:111
4310991810,3cyclictest0-21swapper/120:28:281
4310991810,3cyclictest0-21swapper/120:07:051
4309991810,5cyclictest0-21swapper/019:12:040
4309991810,4cyclictest0-21swapper/020:22:060
3034021810,0sleep00-21swapper/022:03:320
2681721810,0sleep00-21swapper/020:02:370
431099174,6cyclictest18992-21ls19:42:111
431099172,7cyclictest23570-21snmpd19:07:201
431099172,11cyclictest0-21swapper/119:57:041
4310991710,5cyclictest0-21swapper/123:26:341
4310991710,4cyclictest0-21swapper/119:32:111
4309991716,1cyclictest0-21swapper/023:06:120
4309991710,3cyclictest0-21swapper/019:45:120
4309991710,2cyclictest0-21swapper/022:32:060
430999170,16cyclictest0-21swapper/021:53:480
431099164,9cyclictest0-21swapper/100:02:091
4310991615,1cyclictest5915-21apache221:56:271
4310991615,0cyclictest11917-21taskset20:49:201
4310991610,4cyclictest0-21swapper/119:30:001
430999164,8cyclictest0-21swapper/019:32:170
430999164,6cyclictest0-21swapper/020:42:110
430999164,5cyclictest0-21swapper/020:37:030
430999163,7cyclictest0-21swapper/020:12:110
430999162,8cyclictest0-21swapper/021:22:050
430999162,3cyclictest20471-21/usr/sbin/munin19:47:100
4309991610,3cyclictest0-21swapper/020:59:320
4309991610,3cyclictest0-21swapper/020:47:110
4309991610,3cyclictest0-21swapper/020:36:510
4309991610,3cyclictest0-21swapper/019:22:060
4309991610,0cyclictest0-21swapper/020:07:050
4309991513,2cyclictest0-21swapper/019:57:080
4309991510,3cyclictest0-21swapper/019:27:080
4310991410,3cyclictest0-21swapper/120:42:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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