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2025-11-27 - 07:06
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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 Thu Nov 27, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
163162740,1sleep116305-21munin-run21:51:431
401027058,8sleep10-21swapper/119:03:541
390026856,8sleep00-21swapper/019:02:450
4464994310,32cyclictest0-21swapper/021:03:470
4464994210,31cyclictest0-21swapper/022:57:290
4464994210,31cyclictest0-21swapper/021:33:050
4464994210,31cyclictest0-21swapper/020:30:460
4464994210,16cyclictest0-21swapper/022:23:500
4464994210,12cyclictest0-21swapper/020:11:570
4464994110,31cyclictest0-21swapper/019:26:560
4464994110,30cyclictest0-21swapper/000:28:500
4464994110,30cyclictest0-21swapper/000:19:130
4464994010,30cyclictest0-21swapper/023:30:150
4464994010,30cyclictest0-21swapper/021:48:260
4464994010,29cyclictest0-21swapper/023:48:250
4464994010,29cyclictest0-21swapper/023:37:020
4464994010,29cyclictest0-21swapper/022:11:550
4464994010,24cyclictest0-21swapper/021:29:350
4464993910,7cyclictest0-21swapper/022:43:360
4464993910,29cyclictest0-21swapper/021:56:180
4464993910,28cyclictest0-21swapper/023:08:010
4464993910,28cyclictest0-21swapper/022:52:010
4464993910,28cyclictest0-21swapper/022:36:570
4464993910,28cyclictest0-21swapper/022:17:030
4464993910,28cyclictest0-21swapper/020:17:020
4464993910,28cyclictest0-21swapper/000:31:560
4464993910,26cyclictest0-21swapper/021:43:560
4464993810,28cyclictest0-21swapper/021:40:330
4464993810,27cyclictest0-21swapper/020:57:230
4464993810,27cyclictest0-21swapper/019:42:010
4464993810,27cyclictest0-21swapper/019:17:060
4464993810,23cyclictest0-21swapper/023:26:350
4464993710,27cyclictest0-21swapper/023:45:300
4464993710,27cyclictest0-21swapper/019:32:050
4464993710,26cyclictest0-21swapper/022:28:020
4464993710,26cyclictest0-21swapper/021:21:240
4464993710,26cyclictest0-21swapper/000:11:590
4465993610,0cyclictest0-21swapper/123:48:371
4464993610,25cyclictest0-21swapper/019:40:360
4464993610,24cyclictest0-21swapper/023:56:570
4464993610,24cyclictest0-21swapper/020:51:580
4464993610,21cyclictest0-21swapper/022:46:560
4464993510,24cyclictest0-21swapper/019:54:110
4464993414,20cyclictest0-21swapper/000:24:540
4464993410,9cyclictest0-21swapper/021:09:180
4464993410,24cyclictest0-21swapper/021:58:480
4464993410,20cyclictest0-21swapper/019:11:580
4464993410,15cyclictest0-21swapper/023:31:510
446599330,23cyclictest0-21swapper/121:15:451
4464993310,8cyclictest0-21swapper/023:53:540
4464993310,22cyclictest0-21swapper/023:12:380
4464993310,22cyclictest0-21swapper/022:07:580
4464993310,21cyclictest0-21swapper/021:12:460
4464993214,17cyclictest0-21swapper/023:05:370
4464993211,20cyclictest97850irq/107-eth1-rx21:22:300
4464993211,20cyclictest0-21swapper/022:33:560
4464993210,22cyclictest0-21swapper/019:21:570
4464993210,20cyclictest0-21swapper/000:02:030
4464993210,19cyclictest0-21swapper/023:18:590
4464993210,18cyclictest0-21swapper/019:08:250
4465993110,15cyclictest14766-21kworker/u4:223:53:301
4465993110,0cyclictest0-21swapper/123:04:011
446499314,26cyclictest93882chrt20:47:460
4464993117,14cyclictest0-21swapper/019:47:020
4464993117,14cyclictest0-21swapper/000:10:000
4464993110,19cyclictest0-21swapper/020:42:450
4464993110,18cyclictest0-21swapper/020:38:320
4464993110,12cyclictest0-21swapper/019:59:470
4464993010,16cyclictest0-21swapper/020:06:550
4465992928,1cyclictest0-21swapper/119:40:551
446599290,11cyclictest0-21swapper/123:21:571
4464992910,19cyclictest0-21swapper/022:03:270
4465992820,6cyclictest18540-21snmpd00:34:191
4465992810,8cyclictest0-21swapper/122:47:401
4465992810,17cyclictest0-21swapper/121:19:111
4464992610,15cyclictest0-21swapper/020:21:500
446599250,3cyclictest0-21swapper/119:22:021
446599243,15cyclictest15542-21diskmemload22:37:011
4465992424,0cyclictest0-21swapper/122:19:041
4465992424,0cyclictest0-21swapper/119:20:361
4465992421,2cyclictest26088-21ssh22:04:471
4465992413,6cyclictest18540-21snmpd23:46:071
4465992410,10cyclictest0-21swapper/119:26:591
4464992424,0cyclictest0-21swapper/020:35:090
4465992321,2cyclictest0-21swapper/123:20:501
4465992321,1cyclictest7694-21apache222:58:471
4465992318,2cyclictest4462-21cyclictest23:30:441
4465992310,8cyclictest0-21swapper/119:42:001
4465992310,7cyclictest0-21swapper/123:36:271
446599225,13cyclictest8877-21taskset21:41:241
4465992222,0cyclictest0-21swapper/100:28:001
4465992215,5cyclictest7694-21apache222:07:181
4465992210,5cyclictest0-21swapper/120:01:551
4464992211,6cyclictest91rcu_preempt20:01:560
1953622210,1sleep10-21swapper/121:55:551
733322110,0sleep10-21swapper/123:08:011
446599216,8cyclictest0-21swapper/119:52:061
446599212,2cyclictest0-21swapper/123:39:301
446599212,18cyclictest12487-21rm22:31:241
4465992117,3cyclictest14306-21if_eth321:01:581
4465992116,4cyclictest231ktimersoftd/120:27:541
446599211,5cyclictest0-21swapper/121:10:331
446599211,16cyclictest0-21swapper/100:11:281
4465992110,7cyclictest0-21swapper/100:16:561
4465992110,5cyclictest0-21swapper/100:22:061
4465992110,4cyclictest0-21swapper/123:58:321
4465992110,4cyclictest0-21swapper/120:57:001
446599210,8cyclictest9594-21hddtemp_smartct21:41:571
446599205,7cyclictest0-21swapper/121:26:541
4465992015,3cyclictest7694-21apache220:44:311
4465992012,4cyclictest0-21swapper/121:57:021
4465992012,2cyclictest7694-21apache220:18:251
4465992010,6cyclictest0-21swapper/122:42:511
4465992010,5cyclictest0-21swapper/123:11:591
4465992010,3cyclictest0-21swapper/119:07:021
4465991917,1cyclictest20963-21ls19:47:031
4465991916,2cyclictest12996-21cstates22:31:561
4465991910,5cyclictest0-21swapper/122:21:561
446599185,8cyclictest0-21swapper/120:06:581
446599183,7cyclictest0-21swapper/100:12:041
446599182,5cyclictest0-21swapper/121:31:561
4465991810,5cyclictest0-21swapper/120:36:441
4465991810,2cyclictest0-21swapper/120:36:511
308402181,3sleep10-21swapper/122:11:541
446599175,10cyclictest0-21swapper/120:51:551
446599174,6cyclictest0-21swapper/100:02:051
446599170,10cyclictest15542-21diskmemload22:51:481
446599168,5cyclictest30613-21ls20:12:051
446599162,6cyclictest0-21swapper/119:31:551
4465991612,1cyclictest0-21swapper/121:22:461
4465991610,2cyclictest0-21swapper/120:47:021
4465991514,1cyclictest6743-21fw_packets19:11:561
4465991510,2cyclictest0-21swapper/120:26:431
4465991510,2cyclictest0-21swapper/119:56:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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