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2026-05-15 - 08:09
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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 highest latencies:
System rack7slot8.osadl.org (updated Thu May 14, 2026 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21417991689,139cyclictest4707-21chrt08:10:300
21417991657,137cyclictest21562-21/usr/sbin/munin11:25:160
21417991648,17cyclictest30855-21diskstats07:45:380
214179916124,96cyclictest1408-21nginx07:44:460
21417991609,17cyclictest5610-21apt-get12:27:220
21417991607,16cyclictest25669-21df11:40:150
214179915923,118cyclictest4202-21apt-get12:25:040
214179915826,112cyclictest1305-21snmpd08:10:000
214179915715,123cyclictest7762-21wget10:30:130
214179915615,18cyclictest1408-21nginx08:36:010
21417991556,17cyclictest22130-21apt-get09:22:140
21417991549,19cyclictest24081-21df_inode09:25:180
21417991547,16cyclictest23508-21apt-get07:17:100
21417991546,25cyclictest28170-21diskstats11:50:220
214179915453,90cyclictest20302-21/usr/sbin/munin11:20:190
214179915426,108cyclictest1408-21nginx11:15:150
214179915410,93cyclictest0-21swapper/007:20:420
21417991536,21cyclictest18009-21ntpq11:10:420
214179915326,107cyclictest1305-21snmpd12:16:210
21417991527,123cyclictest1305-21snmpd09:10:190
214179915242,96cyclictest11786-21seq10:45:410
214179915241,99cyclictest29234-21wget11:55:160
214179915237,105cyclictest29988-21grep09:50:020
214179915226,105cyclictest1305-21snmpd08:40:090
20879215218,101sleep00-21swapper/007:05:590
21417991519,122cyclictest22162-21http09:20:050
21417991518,17cyclictest8769-21users08:25:490
21417991518,129cyclictest1818-21sendmail-msp08:00:010
21417991508,16cyclictest4671-21apt-get10:17:080
21417991508,124cyclictest31693-21seq09:55:350
21417991507,124cyclictest25468-21nfs_client09:30:340
21417991499,16cyclictest26676-21df07:30:160
21417991498,17cyclictest25436-21df07:25:180
21417991498,121cyclictest15679-21grep08:55:150
21417991497,20cyclictest14423-21aten_r7power_en08:50:130
21417991497,17cyclictest5708-21wget08:15:130
21417991497,126cyclictest1305-21snmpd10:35:570
214179914938,98cyclictest18309-21df_inode09:05:200
214179914924,107cyclictest27736-21aten_r7power_vo09:40:150
21417991488,17cyclictest7985-21ntp_states12:35:430
21417991488,17cyclictest32488-21sshd07:50:570
21417991488,15cyclictest1276-21runrttasks12:05:110
21417991487,121cyclictest23016-21cut11:30:120
214179914811,116cyclictest787-21haveged09:05:040
21417991478,120cyclictest26361-21/usr/sbin/munin09:35:450
214179914745,88cyclictest14104-21runrttasks10:55:260
214179914728,109cyclictest5557-21ntp_states10:20:380
214179914714,113cyclictest10210-21grep10:40:140
21417991467,18cyclictest6755-21ntpq12:30:410
21417991467,16cyclictest9600-21df_inode08:30:200
21417991466,21cyclictest1480-21munin-node11:35:130
214179914628,99cyclictest505-21/usr/sbin/munin12:10:270
214179914623,111cyclictest13324-21df08:45:150
21417991459,123cyclictest1403-21/usr/sbin/munin10:05:330
21417991449,121cyclictest7127-21/usr/sbin/munin08:20:190
214179914436,97cyclictest1151-21sshd10:03:590
214179914435,98cyclictest27933-21/usr/sbin/munin07:35:190
214179914420,112cyclictest2893-21fw_conntrack10:10:260
21417991437,15cyclictest7043-21seq10:25:540
21417991436,15cyclictest30463-21/usr/sbin/munin12:00:120
214179914322,104cyclictest787-21haveged11:05:160
21417991427,16cyclictest21797-21irqstats07:10:310
21417991418,19cyclictest1276-21runrttasks10:50:300
214179914132,97cyclictest30491-21ntpq09:50:390
214179914129,95cyclictest26716-21/usr/sbin/munin11:45:460
214179914129,100cyclictest2800-21seq08:02:520
21417991408,120cyclictest15357-21fw_conntrack11:00:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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