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2025-12-21 - 02:48
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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 all highest latencies:
System rack7slot8.osadl.org (updated Sun Dec 21, 2025 01:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30288211420,10sleep030287-21/usr/sbin/munin19:05:270
311539913346,34cyclictest8462-21latency_hist00:00:090
311539913152,37cyclictest9755-21apt-get00:07:070
311539912955,35cyclictest5593-21apt-get23:52:120
311539912945,33cyclictest2701-21apt-get23:40:450
311539912942,34cyclictest2853-21ntp_states21:30:410
311539912655,24cyclictest13879-21apt-get00:22:110
311539912649,37cyclictest1174-21apt-get19:17:050
311539912649,21cyclictest31084-21apt-get19:10:450
311539912349,20cyclictest11474-21irqstats22:05:310
311539912282,31cyclictest32655-21latency_hist23:30:020
311539912246,20cyclictest17089-21diskstats00:30:260
311539912243,40cyclictest25929-21df20:55:160
311539912174,38cyclictest29756-21apt-get23:17:060
311539912158,21cyclictest23010-21diskstats22:50:340
311539912147,52cyclictest1305-21snmpd22:10:420
311539912059,40cyclictest1408-21nginx21:08:190
311539912042,59cyclictest8686-21aten_r7power_en00:00:160
311539911962,45cyclictest17045-21ntp_states20:20:400
311539911956,22cyclictest13881-21munin-run00:20:050
311539911947,33cyclictest1305-21snmpd20:02:300
311539911944,36cyclictest19870-21cat22:40:040
311539911944,35cyclictest15975-21/usr/sbin/munin00:25:360
311539911877,32cyclictest20279-21ntpq22:40:370
311539911858,42cyclictest787-21haveged23:30:430
311539911857,45cyclictest29548-21runrttasks21:10:150
311539911844,21cyclictest32213-21diskstats21:20:230
311539911756,21cyclictest10598-21df19:55:190
311539911749,52cyclictest19272-21http00:40:050
311539911747,50cyclictest22281-21http22:50:040
311539911643,53cyclictest1305-21snmpd23:47:280
311539911643,33cyclictest1608-21ntpd21:15:360
311539911576,31cyclictest658-21apt-get21:25:280
311539911470,35cyclictest6654-21grep21:45:440
311539911469,35cyclictest26568-21aten_r7power_en23:05:160
311539911453,20cyclictest25143-21munin-run23:00:020
311539911449,33cyclictest12427-21chrt00:13:270
311539911443,34cyclictest14797-21munin-run22:20:030
311539911369,34cyclictest8238-21memory19:45:340
311539911359,35cyclictest26393-21latency_hist23:05:030
311539911344,34cyclictest17522-21wget22:30:150
311539911343,32cyclictest28356-21users23:10:500
311539911269,31cyclictest1774-21diskstats23:35:230
311539911251,47cyclictest27060-21wget21:00:120
311539911245,50cyclictest9282-21wget19:50:150
311539911162,38cyclictest15271-21awk22:20:370
311539911162,33cyclictest16547-21sendmail-msp20:20:010
311539911144,34cyclictest14330-21df20:10:140
311539911080,23cyclictest25484-21runrttasks20:53:510
311539911050,19cyclictest1305-21snmpd21:55:270
311539911044,34cyclictest1305-21snmpd20:32:370
311539910966,32cyclictest1408-21nginx20:46:320
311539910963,37cyclictest22883-21latency_hist20:45:080
311539910956,41cyclictest5638-21diskstats19:35:220
311539910950,19cyclictest20588-21diskstats20:35:230
311539910867,31cyclictest2077-21ntpq19:20:390
311539910850,20cyclictest13115-21diskstats20:05:220
311539910842,50cyclictest16197-21wget22:25:140
311539910842,30cyclictest7631-21df21:50:190
311539910841,33cyclictest30320-21wget23:20:130
311539910771,28cyclictest3704-21apt21:35:140
311539910741,31cyclictest10057-21wget22:00:180
311539910648,21cyclictest5354-21ntp_states21:40:400
311539910647,20cyclictest18090-21df20:25:210
311539910646,19cyclictest6706-21/usr/sbin/munin19:40:120
311539910546,47cyclictest3167-21diskstats19:25:280
311539910474,22cyclictest5310-21latency_hist19:35:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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