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2025-11-28 - 00:05
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Thu Nov 27, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
325892760,0sleep00-21swapper/009:46:380
1941427149,17sleep00-21swapper/007:02:390
1967427050,8sleep10-21swapper/107:05:221
1998599339,3cyclictest91rcu_preempt11:09:251
1998599331,3cyclictest2396-21munin-run10:31:441
19985993310,12cyclictest0-21swapper/111:39:111
19984993210,21cyclictest0-21swapper/012:07:420
19985992929,0cyclictest24-21ksoftirqd/109:21:101
1998599292,2cyclictest91rcu_preempt09:13:431
1998599290,0cyclictest91rcu_preempt09:26:541
19984992929,0cyclictest0-21swapper/010:38:510
19985992827,1cyclictest24-21ksoftirqd/110:15:231
19985992827,1cyclictest24-21ksoftirqd/110:15:231
19985992827,0cyclictest97850irq/107-eth1-rx09:37:131
19985992827,0cyclictest24-21ksoftirqd/109:31:531
19985992825,1cyclictest24-21ksoftirqd/111:47:131
19985992822,5cyclictest24-21ksoftirqd/108:36:591
19985992811,1cyclictest91rcu_preempt09:45:301
1998599280,24cyclictest19397-21ssh12:19:211
19984992828,0cyclictest0-21swapper/010:05:330
19985992725,1cyclictest24-21ksoftirqd/110:55:541
19985992725,1cyclictest24-21ksoftirqd/110:01:571
19985992721,4cyclictest24-21ksoftirqd/110:25:141
19985992710,16cyclictest0-21swapper/110:45:301
19984992710,16cyclictest0-21swapper/009:20:460
19984992710,11cyclictest0-21swapper/010:21:550
19985992610,15cyclictest0-21swapper/108:31:401
19984992625,1cyclictest0-21swapper/009:00:270
19984992621,4cyclictest18540-21snmpd10:07:570
1998499260,2cyclictest91rcu_preempt09:47:440
1998599256,4cyclictest91rcu_preempt10:41:111
19985992525,0cyclictest0-21swapper/111:17:131
19985992523,1cyclictest24-21ksoftirqd/111:44:571
19985992519,5cyclictest29809-21apache209:50:531
19985992519,2cyclictest24-21ksoftirqd/109:21:591
1998599250,1cyclictest91rcu_preempt12:26:551
19984992523,1cyclictest8893-21awk09:56:590
1998499251,3cyclictest0-21swapper/009:14:420
1998499250,1cyclictest0-21swapper/010:57:290
1998599245,3cyclictest91rcu_preempt11:29:171
19985992422,1cyclictest231ktimersoftd/109:56:521
19985992415,7cyclictest29809-21apache211:55:391
19985992410,7cyclictest0-21swapper/107:37:011
19985992410,3cyclictest91rcu_preempt12:24:021
19985992410,1cyclictest0-21swapper/111:36:121
19984992424,0cyclictest0-21swapper/010:35:120
1998499242,2cyclictest20488-21/usr/sbin/munin07:06:590
1998599235,2cyclictest91rcu_preempt11:58:111
19985992323,0cyclictest0-21swapper/112:03:411
19985992321,1cyclictest24-21ksoftirqd/109:07:441
19985992317,1cyclictest0-21swapper/110:21:351
19985992312,5cyclictest23757-21kworker/u4:211:04:071
19985992310,5cyclictest0-21swapper/108:56:531
1998599230,4cyclictest91rcu_preempt10:10:521
1998499232,5cyclictest0-21swapper/011:41:290
19984992311,6cyclictest0-21swapper/009:34:560
19984992310,4cyclictest0-21swapper/007:21:580
1998499230,2cyclictest0-21swapper/009:56:230
1998499230,18cyclictest0-21swapper/011:25:320
1097522310,0sleep10-21swapper/111:24:481
1998599223,8cyclictest31152-21unixbench_singl07:32:041
1998599222,3cyclictest91rcu_preempt07:26:561
19985992222,0cyclictest24-21ksoftirqd/110:34:061
19985992220,1cyclictest13247-21idleruntime08:11:571
19985992215,6cyclictest18540-21snmpd11:16:111
1998599221,3cyclictest91rcu_preempt07:47:021
19985992212,4cyclictest0-21swapper/112:34:211
19985992210,6cyclictest0-21swapper/109:55:221
1998599220,3cyclictest91rcu_preempt12:08:521
1998499228,10cyclictest10050irq/110-ahci[0011:46:430
1998499227,8cyclictest0-21swapper/008:41:580
19984992211,8cyclictest1111-21runrttasks07:26:510
19984992210,6cyclictest0-21swapper/007:17:030
1998499220,21cyclictest0-21swapper/012:27:520
1998599219,6cyclictest24-21ksoftirqd/107:26:101
19985992116,4cyclictest24-21ksoftirqd/107:57:001
19985992115,2cyclictest24-21ksoftirqd/110:57:041
19985992111,4cyclictest24-21ksoftirqd/108:21:531
19985992110,6cyclictest0-21swapper/112:12:591
1998599210,17cyclictest0-21swapper/107:12:041
19984992119,1cyclictest29809-21apache210:44:110
19984992113,2cyclictest0-21swapper/011:35:530
19984992110,6cyclictest0-21swapper/012:14:030
19984992110,4cyclictest0-21swapper/008:51:590
19984992110,3cyclictest0-21swapper/011:49:020
188632210,1sleep018861-21sort08:26:560
1998599200,2cyclictest91rcu_preempt10:49:591
1998599200,10cyclictest32436-21fschecks_time09:01:541
1998499208,9cyclictest0-21swapper/008:32:010
1998499207,7cyclictest0-21swapper/012:01:560
19984992016,4cyclictest29836-21apache211:54:570
19984992015,4cyclictest29836-21apache211:07:590
19984992010,4cyclictest0-21swapper/010:50:330
19984992010,3cyclictest0-21swapper/007:37:050
1998599195,7cyclictest0-21swapper/108:06:571
1998599195,6cyclictest0-21swapper/108:51:591
1998599193,5cyclictest91rcu_preempt08:31:531
19985991914,1cyclictest24-21ksoftirqd/107:52:011
1998599191,3cyclictest91rcu_preempt08:19:361
19985991911,2cyclictest0-21swapper/108:42:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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