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2026-06-22 - 00:20
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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 Sun Jun 21, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26443221529,50sleep00-21swapper/019:09:170
265959910241,44cyclictest5511-21chrt21:59:130
265959910225,38cyclictest11582-21apt20:20:000
265959910137,47cyclictest31860-21cut21:35:170
265959910137,44cyclictest1408-21nginx23:22:460
265959910056,31cyclictest101ktimersoftd/021:45:160
265959910024,36cyclictest18125-21df_inode20:45:190
26595999926,31cyclictest1408-21nginx19:27:280
26595999827,34cyclictest21104-21seq23:00:420
26595999824,52cyclictest31009-21apt-config23:40:190
26595999823,32cyclictest2010-21node22:27:340
26595999749,32cyclictest101ktimersoftd/022:45:180
26595999722,57cyclictest8944-21cmp00:20:170
26595999634,44cyclictest787-21haveged21:22:310
26595999625,20cyclictest18601-21seq22:50:410
26595999621,35cyclictest9653-21df22:15:170
26595999621,20cyclictest19054-21apt-get20:52:090
2659599958,34cyclictest28569-21ntp_states23:30:410
26595999555,24cyclictest101ktimersoftd/023:55:390
26595999552,33cyclictest14194-21runrttasks20:30:110
26595999526,52cyclictest1408-21nginx23:37:490
26595999520,36cyclictest22175-21fw_forwarded_lo23:05:260
26595999518,41cyclictest24563-21sshd21:08:040
26595999447,36cyclictest30215-21runrttasks19:24:140
26595999423,19cyclictest2052-21irqstats19:40:310
26595999355,20cyclictest13615-21runrttasks22:30:410
26595999352,12cyclictest101ktimersoftd/019:55:310
26595999346,29cyclictest22257-21cmp21:00:140
26595999322,36cyclictest23546-21ntpq23:10:340
26595999319,34cyclictest8613-21ntp_states22:10:410
26595999313,45cyclictest13352-21ntp_states20:25:410
26595999254,29cyclictest1-21systemd00:29:090
26595999219,33cyclictest29285-21df_inode21:25:280
26595999218,55cyclictest1143-21wget23:50:130
26595999156,24cyclictest6673-21sshd22:03:240
26595999155,28cyclictest25449-21mailstats21:10:430
26595999125,30cyclictest1276-21runrttasks00:35:290
26595999117,36cyclictest3774-21wget00:00:180
26595999116,35cyclictest31343-21sshd21:34:240
26595999060,20cyclictest19825-21ntp_states22:55:380
26595999043,16cyclictest10250irq/56-4a10000021:52:260
26595999038,17cyclictest17009-21runrttasks20:40:340
26595999011,38cyclictest28682-21apt-get19:17:060
26595999011,38cyclictest25181-21apt-get23:17:060
26595998958,20cyclictest8574-21latency_hist00:20:060
26595998926,48cyclictest32320-21wget23:45:120
26595998919,51cyclictest12075-21wget00:30:160
26595998857,21cyclictest26674-21/usr/sbin/munin21:15:460
26595998838,39cyclictest32274-21chrt19:30:490
26595998827,51cyclictest26676-21/usr/sbin/munin19:10:500
26595998823,29cyclictest1305-21snmpd19:37:040
26595998754,22cyclictest16498-21runrttasks22:42:140
26595998754,21cyclictest101ktimersoftd/020:10:400
26595998743,33cyclictest16120-21sshd20:36:220
26595998656,22cyclictest4641-21open_files19:50:440
26595998625,47cyclictest7113-21ntp_states20:00:400
26595998620,48cyclictest6400-21fw_forwarded_lo00:10:290
26595998544,27cyclictest3650irq/20-4900000021:40:230
26595998540,34cyclictest8652-21sshd20:06:230
26595998533,39cyclictest15061-21users22:35:500
26595998520,33cyclictest12581-21sshd20:22:530
26595998516,17cyclictest5321-21awk00:05:440
26595998454,20cyclictest787-21haveged22:05:490
26595998433,33cyclictest26932-21/usr/sbin/munin23:25:120
26595998420,48cyclictest21193-21ntp_states20:55:430
26595998352,21cyclictest3906-21runrttasks19:48:170
26595998335,38cyclictest10947-21diskstats22:20:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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