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2026-01-07 - 08:19
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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 Wed Jan 07, 2026 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28818220924,57sleep028821-21df_inode19:05:180
29810991725,109cyclictest10351-21seq20:00:420
29810991688,107cyclictest6283-21df21:50:180
298109916128,112cyclictest26235-21sshd23:09:380
298109916127,90cyclictest3594-21latency_hist19:35:040
298109916122,119cyclictest14831-21sendmail-msp20:20:020
298109916039,106cyclictest10250irq/56-4a10000020:55:160
298109915939,101cyclictest9815-21cat20:00:000
298109915726,109cyclictest1305-21snmpd23:23:570
298109915723,97cyclictest1408-21nginx19:42:310
298109915711,107cyclictest3879-21cpuspeed19:35:150
29810991567,113cyclictest5806-21sshd21:48:380
29810991566,129cyclictest12572-21cron22:15:010
298109915625,113cyclictest11376-21apt-get00:17:210
29810991559,108cyclictest17818-21ntp_states20:30:430
29810991557,92cyclictest22281-21apt-get20:52:100
29810991556,129cyclictest28342-21swap21:10:470
29810991547,107cyclictest30162-21apt-get21:18:270
29810991538,99cyclictest14180-21diskstats22:20:240
29810991537,110cyclictest21420-21/usr/sbin/munin22:50:100
298109915353,84cyclictest101ktimersoftd/019:30:000
298109915324,110cyclictest7477-21wget19:50:110
298109915324,110cyclictest1305-21snmpd22:43:480
29810991529,88cyclictest25943-21chrt21:01:090
29810991529,129cyclictest13462-21apt-get22:17:070
298109915232,105cyclictest10250irq/56-4a10000020:11:500
298109915220,112cyclictest1305-21snmpd00:09:070
298109915219,114cyclictest22724-21wget22:55:150
29810991519,99cyclictest30390-21fw_conntrack23:25:250
29810991518,104cyclictest22284-21/usr/sbin/munin20:50:030
29810991517,125cyclictest26548-21wget21:05:120
29810991517,103cyclictest2172-21diskstats21:35:210
298109915126,104cyclictest19920-21/usr/sbin/munin20:40:490
29810991509,105cyclictest10106-21/usr/sbin/munin00:15:030
29810991509,102cyclictest16846-21ntp_states22:30:440
29810991507,86cyclictest15474-21apt-get00:37:070
29810991507,122cyclictest1305-21snmpd00:04:050
29810991507,104cyclictest30849-21df21:20:180
298109915039,91cyclictest10150irq/55-4a10000022:00:430
29810991498,104cyclictest31186-21cut19:15:140
29810991498,102cyclictest12270-21ntp_states00:20:420
29810991497,88cyclictest4364-21ntp_states23:50:400
29810991497,119cyclictest1608-21ntpd23:10:420
29810991496,102cyclictest19164-21ps20:35:440
298109914939,99cyclictest15472-21latency_hist00:35:080
298109914838,99cyclictest682-21runrttasks23:35:460
29810991479,96cyclictest24131-21diskstats23:00:220
29810991476,87cyclictest2801-21aten_r7power_po23:45:150
298109914711,122cyclictest10958-21munin-run22:10:040
29810991467,116cyclictest32405-21/usr/sbin/munin19:20:110
298109914634,99cyclictest1276-21runrttasks20:27:510
298109914610,117cyclictest5305-21wget23:55:150
29810991458,106cyclictest1305-21snmpd00:29:100
29810991457,99cyclictest1276-21runrttasks21:43:490
29810991456,87cyclictest17882-21df_inode22:35:190
29810991456,122cyclictest11218-21wget20:05:130
29810991455,99cyclictest20794-21users22:45:490
29810991449,100cyclictest1673-21df23:40:220
298109914445,90cyclictest28779-21sh23:20:020
298109914410,121cyclictest31637-21fw_forwarded_lo23:30:280
29810991438,122cyclictest30191-21irqstats19:10:310
29810991436,105cyclictest6239-21wget19:45:120
298109914331,94cyclictest7332-21/usr/sbin/munin21:55:270
29810991418,94cyclictest32098-21df_inode21:25:190
298109914126,102cyclictest14948-21/usr/sbin/munin20:20:130
298109913924,104cyclictest761-21wget21:30:140
298109913820,107cyclictest15606-21ntp_states22:25:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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