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2026-05-05 - 04:29
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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 Tue May 05, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
108027050,16sleep10-21swapper/119:05:431
327442690,0sleep00-21swapper/021:29:270
122426754,8sleep00-21swapper/019:07:110
79562650,0sleep07955-21seq23:04:150
1582992921,8cyclictest10033-21apache223:14:230
1583992810,12cyclictest0-21swapper/119:59:151
158399280,1cyclictest0-21swapper/120:54:211
158299280,27cyclictest0-21swapper/000:20:550
1583992624,1cyclictest24-21ksoftirqd/122:59:011
1583992610,5cyclictest0-21swapper/123:07:171
158299260,20cyclictest16125-21kworker/u4:122:32:300
1582992517,5cyclictest100250irq/107-eth1-rx23:32:190
1582992510,7cyclictest0-21swapper/021:26:520
1583992422,1cyclictest5716-21/usr/sbin/munin20:44:151
1583992411,8cyclictest15385-1kworker/u5:021:35:581
1583992410,6cyclictest0-21swapper/122:33:221
1583992410,4cyclictest0-21swapper/119:44:111
1582992422,1cyclictest81ktimersoftd/022:59:360
1582992419,4cyclictest10061-21apache221:10:460
1582992417,7cyclictest10061-21apache222:57:430
1582992413,3cyclictest0-21swapper/022:12:360
1582992410,9cyclictest0-21swapper/022:15:340
1582992410,9cyclictest0-21swapper/000:14:150
1583992319,1cyclictest0-21swapper/121:12:531
1583992318,4cyclictest6231-21sleep23:44:351
1583992311,5cyclictest31406-21kworker/u4:222:40:531
1583992310,8cyclictest0-21swapper/122:45:101
158399230,0cyclictest0-21swapper/120:37:261
1582992322,0cyclictest0-21swapper/019:34:190
1582992310,9cyclictest0-21swapper/000:37:480
1582992310,8cyclictest0-21swapper/019:49:560
158399227,11cyclictest0-21swapper/119:09:131
158399224,9cyclictest0-21swapper/119:29:131
158399224,4cyclictest10903-21seq22:25:181
158399223,18cyclictest0-21swapper/100:38:581
158399223,11cyclictest0-21swapper/119:19:131
1583992215,5cyclictest10061-21apache220:42:571
1583992215,4cyclictest0-21swapper/123:39:201
1583992211,7cyclictest100150irq/106-eth1-rx23:56:581
1583992211,6cyclictest100150irq/106-eth1-rx00:30:581
1583992210,5cyclictest0-21swapper/122:50:571
1583992210,0cyclictest0-21swapper/123:49:391
158399220,5cyclictest16125-21kworker/u4:122:19:041
1582992220,1cyclictest81ktimersoftd/023:39:160
1582992218,4cyclictest10033-21apache200:30:460
1582992214,2cyclictest81ktimersoftd/000:00:590
1582992210,6cyclictest0-21swapper/023:34:140
1582992210,3cyclictest0-21swapper/021:48:570
1582992210,0cyclictest0-21swapper/020:47:070
158299220,3cyclictest0-21swapper/021:04:330
158399219,9cyclictest0-21swapper/100:26:101
158399213,9cyclictest0-21swapper/120:14:131
1583992119,1cyclictest15197-21diskmemload21:57:561
1583992117,2cyclictest10033-21apache221:46:031
1583992116,4cyclictest10033-21apache220:29:151
1583992113,6cyclictest100150irq/106-eth1-rx00:09:531
1583992112,7cyclictest0-21swapper/120:04:171
1583992110,8cyclictest0-21swapper/123:22:071
1583992110,6cyclictest0-21swapper/123:00:311
1583992110,6cyclictest0-21swapper/119:54:111
1583992110,5cyclictest0-21swapper/122:14:221
1583992110,5cyclictest0-21swapper/121:16:031
1582992118,1cyclictest0-21swapper/021:14:170
1582992116,2cyclictest81ktimersoftd/023:58:320
1582992110,4cyclictest0-21swapper/000:09:120
1582992110,0cyclictest0-21swapper/023:53:460
158399206,5cyclictest0-21swapper/122:09:541
158399205,9cyclictest0-21swapper/119:34:181
158399205,10cyclictest0-21swapper/119:24:121
158399203,10cyclictest0-21swapper/123:09:121
1583992013,3cyclictest18472-1kworker/u5:123:17:471
1583992012,5cyclictest10061-21apache220:13:591
1583992012,4cyclictest31279-21sh21:29:051
1583992010,6cyclictest0-21swapper/122:05:341
1583992010,6cyclictest0-21swapper/119:49:131
1583992010,4cyclictest0-21swapper/100:22:051
158299205,10cyclictest0-21swapper/020:14:130
1582992014,1cyclictest15197-21diskmemload22:22:080
1582992012,7cyclictest21712-21kworker/0:220:26:530
1582992010,4cyclictest0-21swapper/019:14:130
1582992010,3cyclictest0-21swapper/023:24:020
1582992010,3cyclictest0-21swapper/022:27:250
1582992010,3cyclictest0-21swapper/020:29:150
158399193,12cyclictest0-21swapper/119:14:191
158399192,1cyclictest15197-21diskmemload21:51:131
1583991918,1cyclictest24-21ksoftirqd/123:34:121
1583991910,7cyclictest0-21swapper/122:35:521
158299196,8cyclictest0-21swapper/021:54:120
158299196,11cyclictest0-21swapper/023:19:200
158299195,7cyclictest0-21swapper/022:04:120
158299192,9cyclictest0-21swapper/019:24:120
1582991914,4cyclictest19457-21munin-node00:25:060
1582991912,4cyclictest0-21swapper/000:04:160
158299191,12cyclictest0-21swapper/021:59:190
1582991910,5cyclictest19457-21munin-node20:55:510
1582991910,4cyclictest0-21swapper/020:09:170
1582991910,3cyclictest0-21swapper/023:44:140
1582991910,3cyclictest0-21swapper/022:39:050
1582991910,3cyclictest0-21swapper/020:01:110
2046221810,0sleep00-21swapper/019:57:020
1583991810,3cyclictest0-21swapper/121:43:571
1583991810,0cyclictest0-21swapper/122:03:561
158399180,9cyclictest0-21swapper/121:24:191
158399180,3cyclictest0-21swapper/121:08:281
158299182,5cyclictest0-21swapper/019:19:140
1582991818,0cyclictest1580-21cyclictest23:12:390
1582991815,1cyclictest0-21swapper/020:34:180
1582991812,5cyclictest11945-21/usr/sbin/munin20:59:150
1582991810,5cyclictest21712-21kworker/0:220:49:090
1582991810,4cyclictest0-21swapper/022:44:130
1582991810,4cyclictest0-21swapper/022:34:100
1582991810,4cyclictest0-21swapper/021:34:120
1582991810,4cyclictest0-21swapper/019:09:140
1582991810,2cyclictest0-21swapper/021:19:120
1582991810,2cyclictest0-21swapper/019:39:180
158399171,7cyclictest0-21swapper/120:49:131
158399171,10cyclictest0-21swapper/123:29:121
1583991710,6cyclictest0-21swapper/123:25:301
1583991710,4cyclictest0-21swapper/121:19:061
1583991710,4cyclictest0-21swapper/120:24:111
1583991710,3cyclictest0-21swapper/100:14:191
1583991710,1cyclictest100150irq/106-eth1-rx00:00:091
158399170,15cyclictest21973-21apache_accesses00:04:161
158299172,9cyclictest0-21swapper/020:39:180
1582991710,5cyclictest0-21swapper/021:41:010
1582991710,5cyclictest0-21swapper/019:33:280
1582991710,2cyclictest0-21swapper/022:51:020
1582991710,2cyclictest0-21swapper/021:49:150
158299170,13cyclictest0-21swapper/020:19:190
1583991610,3cyclictest0-21swapper/120:59:131
1582991610,1cyclictest0-21swapper/020:04:340
1583991512,0cyclictest0-21swapper/120:19:151
1583991511,1cyclictest13789-21cat19:39:161
1582991510,2cyclictest0-21swapper/019:45:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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