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2026-05-02 - 12:24
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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 Sat May 02, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1088127158,8sleep00-21swapper/019:06:000
241152700,1sleep10-21swapper/121:04:201
1092027057,8sleep10-21swapper/119:06:251
248812640,0sleep00-21swapper/022:29:230
54312630,0sleep10-21swapper/123:28:591
162282450,0sleep01135299cyclictest19:19:170
11352993210,20cyclictest0-21swapper/021:25:040
11352993010,20cyclictest0-21swapper/021:17:130
11353992810,14cyclictest0-21swapper/121:18:011
11353992810,10cyclictest0-21swapper/123:17:221
11353992720,5cyclictest5244-21apache221:03:211
11352992726,0cyclictest81ktimersoftd/022:05:330
11353992622,3cyclictest30714-21ssh21:56:241
11353992619,6cyclictest5244-21apache200:16:281
11353992610,13cyclictest0-21swapper/123:52:361
1135299263,5cyclictest100250irq/107-eth1-rx00:37:360
11352992625,0cyclictest81ktimersoftd/022:39:170
1135299262,22cyclictest23356-21latency_hist22:29:030
11352992610,6cyclictest0-21swapper/023:26:010
1135299260,1cyclictest23848-21sed23:09:210
11352992510,4cyclictest0-21swapper/023:33:330
1135299243,19cyclictest18543-21munin-plugin-st23:04:020
11352992410,7cyclictest0-21swapper/021:23:210
1135399237,15cyclictest0-21swapper/122:09:121
1135399234,13cyclictest0-21swapper/121:49:211
11353992310,6cyclictest0-21swapper/122:44:131
1135299232,2cyclictest30538-21latency_hist19:59:020
11352992322,0cyclictest0-21swapper/022:50:060
11352992320,2cyclictest13090-21munin-node20:09:550
11352992319,3cyclictest5271-21apache220:17:040
11352992310,13cyclictest0-21swapper/021:09:300
11352992310,10cyclictest0-21swapper/020:58:070
280522210,0sleep10-21swapper/121:20:121
11353992217,5cyclictest5244-21apache222:00:331
11353992214,6cyclictest100350irq/108-eth1-tx00:02:401
1135399220,1cyclictest0-21swapper/100:20:061
11352992211,6cyclictest100150irq/106-eth1-rx20:45:050
11352992210,7cyclictest0-21swapper/021:59:150
11352992210,5cyclictest0-21swapper/021:49:150
11352992210,5cyclictest0-21swapper/000:22:020
11352992210,4cyclictest0-21swapper/023:14:460
1135299220,16cyclictest0-21swapper/023:45:280
284022110,0sleep00-21swapper/000:05:450
1227822110,0sleep10-21swapper/123:36:491
11353992115,5cyclictest5244-21apache222:41:441
1135399211,19cyclictest0-21swapper/122:28:331
1135399210,10cyclictest0-21swapper/122:59:201
1135299217,10cyclictest0-21swapper/022:44:140
11352992120,1cyclictest5244-21apache221:58:380
11352992113,4cyclictest593-21lldpd22:36:070
11352992112,6cyclictest0-21swapper/023:35:510
11352992111,6cyclictest0-21swapper/019:17:470
11352992110,8cyclictest0-21swapper/020:49:190
11352992110,4cyclictest0-21swapper/023:21:470
11352992110,4cyclictest0-21swapper/021:47:480
11352992110,2cyclictest0-21swapper/022:54:150
11352992110,0cyclictest100450irq/109-eth1-tx21:41:130
1135299210,5cyclictest24926-21diskmemload22:19:130
1135399205,9cyclictest0-21swapper/122:14:161
1135399205,8cyclictest0-21swapper/122:34:131
1135399205,11cyclictest0-21swapper/119:44:241
1135399205,10cyclictest0-21swapper/121:44:191
1135399204,10cyclictest0-21swapper/123:39:201
1135399203,14cyclictest0-21swapper/119:49:171
11353992017,1cyclictest0-21swapper/123:48:541
11353992016,3cyclictest5271-21apache222:04:391
11353992014,3cyclictest231ktimersoftd/100:07:281
11353992014,3cyclictest23086-21if_eth123:09:161
11353992011,6cyclictest0-21swapper/123:04:131
11353992011,3cyclictest0-21swapper/100:34:381
11353992010,5cyclictest0-21swapper/121:09:131
11353992010,5cyclictest0-21swapper/100:12:581
11353992010,4cyclictest0-21swapper/123:29:171
1135299206,8cyclictest5151-21mailstats00:09:200
11352992012,0cyclictest0-21swapper/000:16:520
11352992011,5cyclictest319-21rpcbind20:00:190
11352992010,4cyclictest0-21swapper/000:03:560
742521910,0sleep10-21swapper/121:26:511
1135399196,6cyclictest636-21nscd21:39:361
1135399195,9cyclictest0-21swapper/121:29:131
1135399195,8cyclictest13574-21seq20:39:031
1135399194,9cyclictest0-21swapper/123:19:161
1135399192,12cyclictest0-21swapper/119:19:101
11353991919,0cyclictest0-21swapper/122:57:111
11353991918,1cyclictest5244-21apache220:29:141
11353991913,2cyclictest0-21swapper/121:34:121
11353991910,6cyclictest20666-21unixbench_multi00:29:221
11353991910,6cyclictest0-21swapper/119:09:141
11353991910,3cyclictest0-21swapper/122:31:521
11352991917,1cyclictest0-21swapper/023:49:140
11352991913,4cyclictest81ktimersoftd/021:04:330
11352991910,5cyclictest5244-21apache223:41:300
1135299190,10cyclictest0-21swapper/020:34:170
1126321910,0sleep00-21swapper/021:31:180
2242921810,0sleep10-21swapper/119:36:141
2053221810,1sleep00-21swapper/023:05:110
11353991816,1cyclictest231ktimersoftd/120:44:181
11353991812,4cyclictest5271-21apache220:13:461
1135399181,13cyclictest0-21swapper/119:59:201
11353991810,6cyclictest0-21swapper/100:25:271
11353991810,3cyclictest0-21swapper/123:55:451
11353991810,3cyclictest0-21swapper/119:40:171
1135299186,4cyclictest0-21swapper/022:14:470
1135299183,7cyclictest0-21swapper/023:58:460
1135299182,8cyclictest1271-21ls20:04:220
1135299181,7cyclictest0-21swapper/019:34:140
11352991810,7cyclictest0-21swapper/000:24:140
11352991810,3cyclictest0-21swapper/019:29:170
11352991810,1cyclictest0-21swapper/021:34:130
3030621710,0sleep10-21swapper/119:58:231
11353991711,4cyclictest12172-21if_eth320:34:161
11353991710,5cyclictest0-21swapper/120:49:211
11353991710,3cyclictest0-21swapper/120:24:131
11353991710,3cyclictest0-21swapper/120:24:131
11353991710,3cyclictest0-21swapper/120:19:151
11353991710,0cyclictest0-21swapper/122:49:531
1135399170,14cyclictest15741-21apache_accesses22:19:121
1135299172,2cyclictest26099-21/usr/sbin/munin19:44:250
1135299171,10cyclictest0-21swapper/020:59:160
11352991710,7cyclictest0-21swapper/019:11:420
11352991710,3cyclictest0-21swapper/000:32:100
11352991710,2cyclictest0-21swapper/022:09:040
1135399162,10cyclictest0-21swapper/119:14:201
11353991610,4cyclictest0-21swapper/120:04:131
1135299163,7cyclictest0-21swapper/019:49:150
11352991610,6cyclictest0-21swapper/019:43:180
11352991610,2cyclictest0-21swapper/020:39:150
11352991610,1cyclictest0-21swapper/019:24:190
2073321510,0sleep10-21swapper/120:55:321
11353991515,0cyclictest0-21swapper/119:29:211
11353991510,4cyclictest0-21swapper/120:14:121
11353991510,3cyclictest0-21swapper/119:26:121
11352991510,2cyclictest0-21swapper/020:19:140
11352991410,2cyclictest0-21swapper/020:24:180
11352991410,2cyclictest0-21swapper/020:24:180
11352991410,0cyclictest0-21swapper/020:29:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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