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2026-03-28 - 15:01
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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 Sat Mar 28, 2026 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15842220217,46sleep00-21swapper/007:08:580
160299912464,42cyclictest19968-21systemctl11:40:010
160299912097,12cyclictest0-21swapper/007:10:030
160299911840,40cyclictest23019-21irqstats07:35:310
160299911749,50cyclictest3650irq/20-4900000010:05:410
160299911749,31cyclictest18296-21sshd09:25:170
160299911438,22cyclictest1625-21apt-get12:37:100
160299911370,33cyclictest26887-21apt-key12:05:240
160299911159,35cyclictest3650irq/20-4900000009:36:160
160299911138,20cyclictest754-21systemd-journal12:31:450
160299911137,37cyclictest1790-21ntp_states10:25:390
160299911069,32cyclictest27111-21apt-get10:00:050
160299911042,48cyclictest7540-21sshd08:44:160
160299911037,20cyclictest30265-21df10:10:180
160299911032,25cyclictest19747-21ntp_states09:30:400
160299911030,30cyclictest18507-21apt-get07:17:180
160299910943,22cyclictest22784-21diskstats11:50:240
160299910937,34cyclictest14076-21fw_conntrack11:15:260
160299910936,36cyclictest21889-21/usr/sbin/munin11:45:470
160299910936,22cyclictest30844-21ntp_states12:20:420
160299910935,22cyclictest30774-21mailstats08:05:470
160299910836,37cyclictest29749-21chrt08:02:160
160299910836,32cyclictest24216-21seq07:40:250
160299910835,40cyclictest25514-21irqstats07:45:320
160299910826,24cyclictest16354-21apt-get09:22:100
160299910753,41cyclictest4123-21fw_conntrack10:35:270
160299910751,38cyclictest11597-21seq11:05:260
160299910749,38cyclictest8950irq/40-mmc109:17:060
160299910745,32cyclictest1285-21lldpd09:07:150
160299910738,37cyclictest25658-21awk12:00:460
160299910661,33cyclictest32304-21runrttasks12:25:470
160299910652,34cyclictest8950irq/40-mmc111:00:330
160299910644,33cyclictest1305-21snmpd07:29:280
160299910636,39cyclictest28053-21ntp_states10:01:160
160299910634,20cyclictest24023-21df_inode11:55:250
160299910563,34cyclictest19279-21if_eth007:20:300
160299910551,15cyclictest1408-21nginx11:10:100
160299910537,36cyclictest32084-21apt-get10:17:120
160299910534,54cyclictest1305-21snmpd07:54:330
160299910533,35cyclictest2830-21/usr/sbin/munin10:30:160
160299910464,31cyclictest3511-21runrttasks08:26:470
160299910464,29cyclictest20389-21interrupts11:40:300
160299910458,35cyclictest1305-21snmpd10:40:480
160299910442,21cyclictest16593-21fw_conntrack11:25:270
160299910434,18cyclictest22429-21df09:40:180
160299910339,47cyclictest4076-21aten_r7power_po08:30:130
160299910259,33cyclictest6366-21cron08:40:010
160299910251,40cyclictest10594-21ntpq08:55:340
160299910241,21cyclictest9998-21grep11:00:010
160299910158,33cyclictest16156-21runrttasks11:24:180
160299910152,32cyclictest10150irq/55-4a10000008:24:160
160299910135,35cyclictest8014-21ntp_states10:50:390
160299910057,33cyclictest23471-21/usr/sbin/munin09:45:150
160299910055,35cyclictest17792-21df11:30:190
160299910038,41cyclictest805-21rs:main0
160299910034,48cyclictest28123-21chrt12:10:150
160299910032,35cyclictest413-21diskstats08:15:220
16029999972,20cyclictest10122-21cat08:55:020
16029999970,20cyclictest22635-21latency_hist07:35:010
16029999949,39cyclictest27813-21cut07:55:150
16029999948,39cyclictest31939-21ps08:10:450
16029999931,33cyclictest1305-21snmpd09:14:500
16029999854,34cyclictest6581-21df10:45:180
16029999642,42cyclictest29372-21seq12:15:170
16029999567,21cyclictest32706-21grep10:20:160
16029999460,25cyclictest8237-21processes08:45:450
16029999438,38cyclictest24950-21fw_forwarded_lo09:50:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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