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2026-01-09 - 23:21
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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 the 792 highest latencies:
System rack7slot8.osadl.org (updated Fri Jan 09, 2026 13:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13625219232,128sleep00-21swapper/007:09:460
137339913948,36cyclictest24343-21df07:50:150
1373399128105,14cyclictest0-21swapper/007:12:100
137339912449,40cyclictest25878-21seq12:10:310
137339912448,38cyclictest7151-21/usr/sbin/munin08:50:140
137339912330,38cyclictest26038-21apt-get10:07:130
137339912072,37cyclictest1-21systemd10:20:010
137339912052,34cyclictest20281-21chrt07:34:520
137339912051,25cyclictest17440-21ntp_states09:30:390
137339911962,43cyclictest20642-21fw_conntrack07:35:220
137339911958,42cyclictest22625-21awk09:50:220
137339911951,52cyclictest31557-21wget10:25:130
137339911946,34cyclictest31033-21ntp_states12:30:430
137339911945,53cyclictest754-21systemd-journal10:14:470
137339911945,53cyclictest17858-21wget11:40:110
137339911942,36cyclictest28554-21ntp_states12:20:420
137339911872,36cyclictest1305-21snmpd09:50:040
137339911866,42cyclictest32114-21chrt12:35:260
137339911849,52cyclictest10250irq/56-4a10000007:45:110
137339911754,44cyclictest0-21swapper/007:20:520
137339911753,33cyclictest2744-21sendmail-msp10:40:030
137339911749,49cyclictest15855-21sshd11:30:460
137339911745,53cyclictest25841-21/usr/sbin/munin07:55:430
137339911647,48cyclictest19434-21ntp_states11:45:410
137339911646,35cyclictest1305-21snmpd11:11:480
137339911643,18cyclictest13032-21diskstats11:20:240
137339911642,20cyclictest11045-21diskstats09:05:330
137339911572,34cyclictest31529-21apt-get08:17:110
137339911571,33cyclictest26051-21http10:05:040
137339911569,35cyclictest17669-21sendmail11:40:010
137339911566,37cyclictest4619-21runrttasks08:40:120
137339911546,50cyclictest8698-21ntp_states08:55:390
137339911545,29cyclictest1408-21nginx10:59:210
137339911447,36cyclictest4468-21munin-run08:40:020
137339911442,34cyclictest25026-21seq12:09:040
137339911440,36cyclictest11740-21df11:15:180
137339911439,37cyclictest27657-21apt-get12:17:050
137339911368,35cyclictest29018-21apt-get08:10:380
137339911353,45cyclictest10250irq/56-4a10000010:45:010
137339911265,35cyclictest27018-21runrttasks08:00:350
137339911249,23cyclictest3223-21munin-plugin-st08:35:010
137339911170,30cyclictest15219-21runrttasks09:20:590
137339911164,37cyclictest30361-21runrttasks10:20:130
137339911160,40cyclictest32222-21df08:20:170
137339911150,42cyclictest14276-21diskstats11:25:220
137339911147,47cyclictest29029-21http08:10:040
137339911141,18cyclictest9801-21fw_conntrack09:00:220
137339911140,18cyclictest13179-21latency_hist09:15:030
137339911042,50cyclictest1063-21cat08:25:270
137339911039,40cyclictest18501-21diskstats09:35:210
137339910959,39cyclictest23181-21seq12:00:420
137339910937,19cyclictest8954-21latency_hist11:05:030
137339910864,33cyclictest20685-21latency_hist09:45:030
137339910855,40cyclictest1305-21snmpd07:40:570
137339910847,20cyclictest4684-21/usr/sbin/munin10:45:460
137339910846,43cyclictest903-21sshd10:30:480
137339910845,48cyclictest24040-21ntp_states09:55:390
137339910844,23cyclictest18298-21/usr/sbin/munin07:25:350
137339910757,37cyclictest16199-21apt-get07:17:070
137339910747,20cyclictest14436-21sh09:20:020
137339910742,49cyclictest5362-21wget10:50:120
137339910738,33cyclictest1305-21snmpd11:54:290
137339910669,28cyclictest6213-21ntpq08:45:350
137339910651,42cyclictest3650irq/20-4900000009:25:200
137339910638,47cyclictest29428-21wget12:25:140
137339910548,19cyclictest21716-21df_inode11:55:180
137339910138,22cyclictest9280-21diskstats11:05:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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