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2025-12-22 - 20:08
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 all highest latencies:
System rack7slot8.osadl.org (updated Mon Dec 22, 2025 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24820219618,43sleep00-21swapper/007:05:110
260079914958,36cyclictest11296-21apt-get10:27:090
260079913756,39cyclictest3004-21diskstats07:45:230
260079913665,37cyclictest7158-21apt-get10:10:490
260079913458,36cyclictest27564-21fw_conntrack07:15:270
260079913370,45cyclictest24273-21memory09:10:320
260079913363,49cyclictest29926-21wget07:25:130
260079913362,53cyclictest1305-21snmpd11:35:280
260079913356,39cyclictest3034-21apt-get09:57:110
260079913265,51cyclictest21889-21seq09:00:420
260079913259,35cyclictest10648-21fw_conntrack12:30:500
260079913259,33cyclictest11912-21ntp_states08:20:380
260079913257,55cyclictest25319-21wget09:15:150
260079913255,36cyclictest11021-21apt-get08:17:080
260079913165,45cyclictest1408-21nginx09:40:500
260079913156,38cyclictest1249-21users09:45:490
260079913151,40cyclictest32203-21apt-get07:36:010
260079913056,20cyclictest19778-21chrt08:52:160
260079912959,34cyclictest31322-21fw_forwarded_lo07:30:270
260079912878,39cyclictest9672-21apt-get10:17:080
260079912871,41cyclictest22806-21/usr/sbin/munin11:10:370
260079912859,48cyclictest15906-21sshd08:36:090
260079912858,36cyclictest1305-21snmpd12:05:390
260079912754,35cyclictest12525-21seq12:38:200
260079912752,36cyclictest2010-21node07:56:050
260079912664,41cyclictest5225-21chrt12:10:260
260079912663,22cyclictest754-21systemd-journal07:40:500
260079912653,35cyclictest14313-21wget10:35:150
260079912558,48cyclictest11307-21http10:25:040
260079912556,51cyclictest31300-21grep11:45:150
260079912554,53cyclictest8933-21df12:25:190
260079912554,52cyclictest1933-21wget09:50:120
260079912553,34cyclictest1305-21snmpd09:39:540
260079912550,21cyclictest23902-21diskstats11:15:260
260079912466,44cyclictest6557-21memory12:15:440
260079912456,35cyclictest14001-21chrt10:33:420
260079912453,51cyclictest1349-21wget11:55:190
260079912449,38cyclictest1305-21snmpd10:50:120
260079912377,36cyclictest1276-21runrttasks07:20:180
260079912361,21cyclictest6828-21irqstats08:00:310
260079912354,32cyclictest9073-21wget08:10:140
260079912260,48cyclictest1276-21runrttasks12:20:460
260079912164,36cyclictest1305-21snmpd10:45:110
260079912150,39cyclictest27603-21apt-get09:25:330
260079912148,19cyclictest6436-21ntp_states10:05:420
260079912142,58cyclictest26602-21ntp_states11:25:410
260079912077,32cyclictest27247-21runrttasks09:22:020
260079912054,50cyclictest10250irq/56-4a10000011:00:140
260079912043,32cyclictest26491-21ntp_states07:10:420
260079911963,43cyclictest25171-21diskstats11:20:210
260079911959,46cyclictest1305-21snmpd08:29:380
260079911941,48cyclictest14004-21/usr/sbin/munin08:30:130
260079911878,28cyclictest20421-21df_inode08:55:210
260079911864,42cyclictest16716-21diskstats08:40:230
260079911858,19cyclictest32626-21diskstats11:50:210
260079911851,47cyclictest1285-21lldpd09:06:060
260079911767,38cyclictest17774-21wget08:45:130
260079911753,49cyclictest10250irq/56-4a10000012:00:150
260079911656,19cyclictest4332-21irqstats07:50:310
260079911646,34cyclictest1305-21snmpd11:05:160
260079911558,17cyclictest15746-21diskstats10:40:230
260079911466,38cyclictest19495-21fw_forwarded_lo10:55:270
260079911366,36cyclictest5035-21fw_forwarded_lo10:00:270
260079911363,39cyclictest754-21systemd-journal08:05:100
260079911359,42cyclictest29554-21diskstats09:30:230
260079911267,36cyclictest30186-21seq11:40:300
260079911152,19cyclictest28145-21chrt11:31:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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