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2026-06-30 - 07:56
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot7.osadl.org (updated Tue Jun 30, 2026 00:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20509211612,75sleep220579-21awk18:53:462
21292991053,28cyclictest1178-21/usr/sbin/munin22:53:292
212789910455,38cyclictest17597-21latency_hist21:33:050
21292991033,28cyclictest15314-21seq00:09:572
212789910327,42cyclictest25200-21/usr/sbin/munin23:33:260
21292991013,30cyclictest2051-21sh23:48:582
21292991013,30cyclictest2051-21sh23:48:582
21292991002,30cyclictest18366-21seq23:22:432
212839910057,37cyclictest352-21runrttasks22:18:191
2129299982,28cyclictest29916-21runrttasks23:40:552
21278999867,21cyclictest741-21apt-get19:33:160
21278999828,39cyclictest24787-21ssh21:43:410
114842980,6sleep20-21swapper/220:03:352
21278999764,25cyclictest30123-21apt-get22:48:170
21278999764,25cyclictest30123-21apt-get22:48:170
2129299963,74cyclictest27151-21ssh22:43:172
2129299962,27cyclictest15091-21seq20:16:132
21292999449,38cyclictest24171-21sh22:38:162
21292999449,38cyclictest24171-21sh22:38:162
21278999464,20cyclictest5831-21apt-get19:49:090
21278999464,20cyclictest5831-21apt-get19:49:090
21278999455,31cyclictest0-21swapper/021:48:150
21278999455,31cyclictest0-21swapper/021:48:150
21278999441,43cyclictest13677-21ssh00:08:050
21292999334,32cyclictest0-21swapper/220:01:352
21278999329,38cyclictest0-21swapper/000:16:490
2129299922,27cyclictest23679-21taskset22:37:382
21278999270,11cyclictest6620-21apt-get23:03:170
21278999270,11cyclictest6620-21apt-get23:03:170
21278999270,11cyclictest6620-21apt-get23:03:170
21278999263,20cyclictest24159-21apt-get22:38:180
21278999263,20cyclictest24159-21apt-get22:38:180
21278999249,28cyclictest23627-21apt-get20:43:180
21278999249,28cyclictest23627-21apt-get20:43:180
21292999133,33cyclictest0-21swapper/220:22:572
21283999143,41cyclictest19393-21taskset00:18:001
21278999156,23cyclictest21282-21latency_hist18:58:060
21278999136,45cyclictest32650-21/usr/sbin/munin21:58:120
21278999123,33cyclictest6203-21kworker/u17:0+rpciod22:14:140
21278999123,33cyclictest6203-21kworker/u17:0+rpciod22:14:140
21292999049,35cyclictest18775-21ntp_offset22:28:312
21278999057,24cyclictest31595-21apt-get19:28:180
21278999035,19cyclictest31110-21sh21:54:360
21292998948,35cyclictest3358-21sh22:03:192
21283998934,47cyclictest0-21swapper/120:28:381
21283998934,47cyclictest0-21swapper/120:28:381
21278998969,10cyclictest26754-21apt-get19:13:190
21278998963,16cyclictest7760-21apt-get23:58:200
21278998963,16cyclictest7760-21apt-get23:58:200
21278998953,26cyclictest21809-21apt-get23:28:160
21278998947,34cyclictest6209-21taskset22:08:130
21278998942,42cyclictest0-21swapper/022:23:130
21278998942,42cyclictest0-21swapper/022:23:130
21278998933,21cyclictest4855-21rm22:58:590
21278998933,21cyclictest4855-21rm22:58:590
204732899,55sleep120508-21swap18:53:451
2129299883,40cyclictest25010-21http20:48:022
2129299883,40cyclictest25010-21http20:48:022
2128399884,30cyclictest26479-21modprobe19:13:021
2128399883,33cyclictest25753-21fschecks_time20:48:461
2128399883,33cyclictest25753-21fschecks_time20:48:461
21278998836,17cyclictest19248-21sh21:34:530
2129299874,6cyclictest0-21swapper/223:03:172
2129299874,6cyclictest0-21swapper/223:03:172
2129299874,6cyclictest0-21swapper/223:03:172
2129299873,8cyclictest0-21swapper/219:13:192
21292998737,44cyclictest0-21swapper/223:23:232
2129299872,23cyclictest352-21runrttasks19:41:372
2128399873,36cyclictest7303-21latency_hist19:53:051
2128399873,36cyclictest7303-21latency_hist19:53:051
2128399873,33cyclictest16022-21runrttasks23:18:451
2128399873,31cyclictest16842-21modprobe20:23:021
21278998761,18cyclictest12305-21apt-get20:08:170
21278998758,20cyclictest660-21apt-get22:53:160
21278998758,20cyclictest25497-21apt-get20:48:390
21278998758,20cyclictest25497-21apt-get20:48:390
2129299863,39cyclictest12303-21idleruntime-cro23:13:012
2129299863,13cyclictest7760-21apt-get23:58:172
2129299863,13cyclictest7760-21apt-get23:58:172
21292998617,48cyclictest0-21swapper/221:29:192
2128399864,28cyclictest5195-21/usr/sbin/munin23:53:321
21283998637,40cyclictest0-21swapper/100:08:041
21283998634,44cyclictest0-21swapper/100:23:181
2128399863,42cyclictest8484-21/usr/sbin/munin21:18:301
2128399863,42cyclictest8484-21/usr/sbin/munin21:18:301
2128399863,33cyclictest29040-21fschecks_count20:58:241
2128399863,30cyclictest5599-21apt-key19:48:051
2128399863,30cyclictest26734-21/usr/sbin/munin19:13:301
2128399863,28cyclictest15136-21/usr/sbin/munin22:23:391
2128399863,28cyclictest15136-21/usr/sbin/munin22:23:391
21283998618,30cyclictest3583-21irqstats22:03:261
21278998666,11cyclictest18752-21apt-get20:28:170
21278998666,11cyclictest18752-21apt-get20:28:170
21278998661,15cyclictest21158-21apt-get22:33:130
21278998653,26cyclictest27119-21apt-get22:43:150
21278998652,22cyclictest3181-21apt-get22:03:170
21278998648,31cyclictest7068-21kworker/u19:0-nfsiod23:17:370
21278998637,40cyclictest12236-21latency_hist20:08:050
21292998537,41cyclictest0-21swapper/222:48:172
21292998537,41cyclictest0-21swapper/222:48:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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