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2026-05-21 - 07:25
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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 Thu May 21, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1523927057,8sleep10-21swapper/119:04:071
1592226654,8sleep00-21swapper/019:04:250
289442620,0sleep10-21swapper/121:48:591
289442620,0sleep10-21swapper/121:48:591
91982550,0sleep10-21swapper/123:31:011
16530993510,18cyclictest1439-21kworker/u4:023:28:410
16531993310,22cyclictest0-21swapper/100:14:351
16531993231,1cyclictest0-21swapper/121:13:301
16530992924,3cyclictest81ktimersoftd/000:36:150
1653199271,17cyclictest0-21swapper/123:09:161
16530992710,17cyclictest0-21swapper/021:23:530
16531992626,0cyclictest0-21swapper/122:20:001
16531992615,4cyclictest0-21swapper/122:02:531
16530992626,0cyclictest0-21swapper/021:30:400
16530992626,0cyclictest0-21swapper/020:13:040
16530992510,6cyclictest100150irq/106-eth1-rx21:14:240
1653199242,16cyclictest13849-21sh22:11:111
1653099246,13cyclictest30315-21kworker/u4:021:27:050
1653099246,12cyclictest0-21swapper/023:14:130
16530992424,0cyclictest0-21swapper/022:03:450
16530992410,7cyclictest0-21swapper/000:04:090
16531992323,0cyclictest0-21swapper/121:58:261
16531992323,0cyclictest0-21swapper/100:36:231
16531992315,7cyclictest14205-21apache_processe00:24:041
1653199231,4cyclictest0-21swapper/120:19:071
16530992318,3cyclictest23313-21munin-node00:29:160
16530992316,5cyclictest20150-21apache200:20:290
16530992311,5cyclictest0-21swapper/019:19:110
16530992310,7cyclictest0-21swapper/023:23:220
16530992310,6cyclictest0-21swapper/019:59:110
16530992310,2cyclictest0-21swapper/023:32:050
16530992310,0cyclictest0-21swapper/021:51:330
16530992310,0cyclictest0-21swapper/021:51:330
892322210,0sleep00-21swapper/000:15:120
1653199223,12cyclictest30443-21/usr/sbin/munin23:59:101
16531992218,3cyclictest636-21nscd22:06:351
16531992218,3cyclictest20717-21/usr/sbin/munin20:44:091
16531992217,3cyclictest20176-21apache222:36:231
1653199221,19cyclictest0-21swapper/123:52:471
16531992210,5cyclictest0-21swapper/123:57:411
16531992210,5cyclictest0-21swapper/121:41:221
16531992210,3cyclictest0-21swapper/122:29:091
16531992210,2cyclictest0-21swapper/123:40:251
1653099225,11cyclictest0-21swapper/019:14:050
1653099223,10cyclictest0-21swapper/023:59:140
16530992213,7cyclictest30146-21diskmemload21:37:220
1653099221,1cyclictest22374-21/usr/sbin/munin19:24:070
1653099220,2cyclictest0-21swapper/021:42:260
16531992117,3cyclictest20150-21apache221:18:381
16531992116,4cyclictest0-21swapper/122:55:031
1653199211,12cyclictest18138-21python00:29:121
16531992110,7cyclictest0-21swapper/121:29:151
16531992110,2cyclictest0-21swapper/122:45:221
1653199210,6cyclictest1199-21runrttasks00:19:041
16530992116,4cyclictest20176-21apache222:38:100
16530992116,2cyclictest5204-21sensors_temp00:09:110
16530992115,5cyclictest0-21swapper/022:44:100
16530992115,4cyclictest100150irq/106-eth1-rx20:59:130
16530992110,8cyclictest0-21swapper/023:05:470
16530992110,5cyclictest0-21swapper/021:10:070
16530992110,3cyclictest0-21swapper/022:29:100
16530992110,2cyclictest0-21swapper/023:38:580
2845822010,0sleep10-21swapper/121:04:061
1653199203,5cyclictest22374-21/usr/sbin/munin19:24:071
1653199202,13cyclictest0-21swapper/120:24:061
16531992019,1cyclictest20150-21apache221:28:181
16531992011,4cyclictest0-21swapper/123:04:351
16531992010,9cyclictest0-21swapper/123:01:441
16531992010,7cyclictest0-21swapper/123:44:141
16530992020,0cyclictest0-21swapper/021:54:290
16530992018,1cyclictest81ktimersoftd/023:47:500
16530992012,7cyclictest100250irq/107-eth1-rx19:31:260
1653099201,14cyclictest0-21swapper/022:13:300
16530992010,5cyclictest0-21swapper/000:24:040
16530992010,4cyclictest0-21swapper/023:09:510
266421910,0sleep10-21swapper/100:04:471
2105521910,0sleep00-21swapper/022:20:020
1653199195,8cyclictest0-21swapper/121:19:061
1653199194,9cyclictest0-21swapper/121:34:061
16531991918,1cyclictest20150-21apache222:40:141
16531991914,4cyclictest20150-21apache223:36:261
16531991910,4cyclictest0-21swapper/122:15:311
16531991910,4cyclictest0-21swapper/120:14:091
16531991910,0cyclictest0-21swapper/123:16:111
1653199190,8cyclictest0-21swapper/119:49:061
1653199190,12cyclictest0-21swapper/119:44:051
1653099195,5cyclictest0-21swapper/020:24:040
1653099194,11cyclictest0-21swapper/019:09:100
16530991918,1cyclictest0-21swapper/020:57:100
16530991911,3cyclictest81ktimersoftd/020:19:140
16530991911,2cyclictest2459-21ssh22:39:080
1653099191,11cyclictest0-21swapper/020:08:340
16530991910,6cyclictest636-21nscd22:25:470
16530991910,5cyclictest0-21swapper/023:55:560
16530991910,5cyclictest0-21swapper/020:14:040
16530991910,4cyclictest0-21swapper/022:49:190
16530991910,3cyclictest0-21swapper/021:04:060
16530991910,2cyclictest0-21swapper/022:54:240
16530991910,2cyclictest0-21swapper/022:14:400
1327221910,0sleep00-21swapper/023:36:280
1653199186,11cyclictest0-21swapper/119:59:071
1653199185,5cyclictest30146-21diskmemload21:46:571
1653199184,8cyclictest0-21swapper/120:39:201
1653199183,9cyclictest0-21swapper/123:24:091
1653199182,12cyclictest0-21swapper/120:09:091
16531991817,1cyclictest0-21swapper/123:20:391
16531991811,2cyclictest28729-21latency19:39:101
1653199181,12cyclictest23970-21runrttasks20:49:421
1653099182,14cyclictest0-21swapper/023:48:550
16530991818,0cyclictest0-21swapper/020:38:200
2193321710,2sleep10-21swapper/119:21:051
1653199171,12cyclictest0-21swapper/120:36:031
16531991710,6cyclictest0-21swapper/120:29:091
16531991710,2cyclictest0-21swapper/119:54:071
16531991710,2cyclictest0-21swapper/119:54:071
16531991710,1cyclictest0-21swapper/122:49:221
16531991710,1cyclictest0-21swapper/119:29:071
1653099179,2cyclictest81ktimersoftd/019:58:390
1653099179,2cyclictest81ktimersoftd/019:58:390
1653099175,7cyclictest0-21swapper/019:34:130
1653099171,7cyclictest0-21swapper/020:49:050
16530991710,4cyclictest0-21swapper/022:05:360
16530991710,3cyclictest0-21swapper/021:44:070
16530991710,3cyclictest0-21swapper/019:39:050
16530991710,2cyclictest0-21swapper/023:02:480
16530991710,2cyclictest0-21swapper/019:51:460
1653099170,14cyclictest30257-21df_inode19:44:050
2812321610,0sleep10-21swapper/121:02:581
1653199167,7cyclictest0-21swapper/119:34:051
1653199165,4cyclictest0-21swapper/100:09:071
1653199163,5cyclictest0-21swapper/120:54:051
16531991614,0cyclictest0-21swapper/122:25:571
16531991610,3cyclictest0-21swapper/119:14:051
16531991610,3cyclictest0-21swapper/119:09:061
1653099169,4cyclictest18751-21/usr/sbin/munin20:39:150
16531991510,3cyclictest0-21swapper/120:04:071
16530991510,1cyclictest0-21swapper/020:45:350
1653099145,4cyclictest15528-21ls20:29:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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