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2025-11-25 - 15:09
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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 50 highest latencies:
System rackbslot7.osadl.org (updated Tue Nov 25, 2025 12:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
91799910830,44cyclictest0-21swapper/111:39:431
893621077,80sleep00-21swapper/007:08:060
2294721070,5sleep222949-21cut07:49:312
827221038,62sleep18321-21processes07:04:531
9168999573,15cyclictest32113-21systemctl08:19:090
9168999522,31cyclictest0-21swapper/010:29:220
9168999522,31cyclictest0-21swapper/010:29:220
917999943,42cyclictest9415-21sort07:09:261
917999933,28cyclictest24878-21cron10:24:081
916899928,73cyclictest7629-21ssh11:49:440
9168999244,37cyclictest9324-21apt-get10:54:220
9168999165,17cyclictest14450-21ssh11:04:110
9168999148,35cyclictest1809-21apt-get11:39:220
917999903,31cyclictest18302-21grep11:09:431
917999903,31cyclictest18302-21grep11:09:431
917999893,26cyclictest8605-21cpu09:54:251
917999892,42cyclictest29150-21apt-get08:09:211
917999883,40cyclictest22567-21unixbench_multi12:14:461
917999883,33cyclictest28487-21grep12:25:031
9179998810,10cyclictest0-21swapper/110:54:131
9179998810,10cyclictest0-21swapper/110:54:131
9168998821,30cyclictest22690-21apt-get07:49:240
9179998759,18cyclictest12421-21sh11:58:131
9179998759,18cyclictest12421-21sh11:58:131
917999874,32cyclictest23751-21runrttasks11:19:421
9179998742,39cyclictest19425-21fschecks_count09:14:311
917999873,30cyclictest25198-21apt-get10:24:191
9179998714,36cyclictest355-21runrttasks08:45:021
9179998714,36cyclictest355-21runrttasks08:45:021
9168998721,30cyclictest6405-21apt-get08:39:270
9168998720,32cyclictest27426-21apt-get09:29:360
9179998640,41cyclictest0-21swapper/110:59:451
9179998640,39cyclictest0-21swapper/109:49:121
9179998640,39cyclictest0-21swapper/109:49:121
9179998638,39cyclictest0-21swapper/110:34:271
917999863,30cyclictest1241-21/usr/sbin/munin12:35:041
917999863,30cyclictest1241-21/usr/sbin/munin12:35:041
917999863,25cyclictest15820-21/usr/sbin/munin12:04:411
9179998626,52cyclictest13781-21cut08:59:451
917999862,32cyclictest11303-21timerwakeupswit07:14:221
917999862,31cyclictest22175-21ls10:19:121
9168998657,19cyclictest27747-21fschecks_count08:04:320
9168998619,33cyclictest355-21runrttasks10:49:100
9168998618,24cyclictest26519-21ps11:24:420
9168998618,24cyclictest26519-21ps11:24:420
9168998612,38cyclictest19268-21munin-run10:14:090
918999853,60cyclictest847-21apt-get12:34:262
918999853,60cyclictest847-21apt-get12:34:262
917999856,33cyclictest355-21runrttasks09:40:151
917999854,40cyclictest8204-21latency11:50:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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