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2025-07-15 - 11:21
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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 Tue Jul 15, 2025 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28281220423,52sleep00-21swapper/019:05:450
288499914275,50cyclictest18821-21apt-get20:40:570
288499914169,51cyclictest22212-21ntpq20:50:400
288499914055,35cyclictest4047-21df23:55:160
288499913571,43cyclictest1424-21nginx21:08:080
288499913570,46cyclictest9720-21ntpq22:10:380
288499913359,21cyclictest24524-21diskstats21:00:220
288499913261,36cyclictest8486-21ntp_states22:05:400
288499913256,38cyclictest760-21systemd-journal22:51:340
288499913254,57cyclictest1702-21df19:30:200
288499913161,51cyclictest11964-21wget22:20:170
288499913066,45cyclictest1336-21runrttasks23:45:140
288499913057,20cyclictest14925-21fw_conntrack00:35:480
288499913055,37cyclictest27058-21munin-run23:20:030
288499913046,31cyclictest24973-21irqstats23:10:320
288499912856,35cyclictest1356-21snmpd20:38:380
288499912853,38cyclictest1336-21runrttasks19:43:320
288499912850,40cyclictest1356-21snmpd20:28:370
288499912772,41cyclictest30942-21apt-get19:17:060
288499912764,41cyclictest31764-21sshd19:20:320
288499912761,52cyclictest11169-21chrt20:08:310
288499912758,50cyclictest1356-21snmpd00:24:260
288499912758,34cyclictest1356-21snmpd19:13:210
288499912757,35cyclictest7172-21sshd22:00:340
288499912755,37cyclictest5653-21ntp_states19:45:420
288499912747,32cyclictest17391-21chrt20:33:300
288499912659,52cyclictest14247-21runrttasks22:27:080
288499912657,34cyclictest23906-21ntp_states23:06:200
288499912655,36cyclictest6790-21ntp_states00:05:460
288499912655,34cyclictest1356-21snmpd20:48:400
288499912652,34cyclictest31267-21sshd21:26:340
288499912584,29cyclictest13465-21ntp_states00:31:070
288499912569,36cyclictest1356-21snmpd20:03:180
288499912564,40cyclictest15774-21sshd22:34:340
288499912561,21cyclictest10810-21fw_conntrack22:15:270
288499912557,51cyclictest4571-21chrt21:50:210
288499912456,49cyclictest5410-21chrt00:00:500
288499912453,37cyclictest27580-21ntp_states23:20:430
288499912452,34cyclictest3027-21ntp_states23:50:460
288499912355,34cyclictest17080-21munin-run22:40:030
288499912354,38cyclictest1356-21snmpd00:19:270
288499912353,36cyclictest31120-21diskstats23:35:220
288499912352,34cyclictest1356-21snmpd21:18:480
288499912350,35cyclictest11551-21wget20:10:130
288499912271,39cyclictest929-21apt-config23:45:080
288499912266,35cyclictest32195-21ntp_states21:30:410
288499912265,37cyclictest1356-21snmpd19:38:260
288499912176,36cyclictest27410-21users21:10:520
288499912174,36cyclictest5997-21ntp_states21:55:430
288499912153,32cyclictest1356-21snmpd22:44:050
288499912073,37cyclictest12964-21chrt00:30:030
288499912055,23cyclictest1356-21snmpd22:45:220
288499912052,33cyclictest1356-21snmpd20:58:440
288499911980,29cyclictest1801-21node23:03:180
288499911969,39cyclictest1336-21runrttasks20:22:320
288499911954,48cyclictest738-21ps19:25:490
288499911951,48cyclictest1356-21snmpd00:14:260
288499911867,38cyclictest13472-21apt-get20:17:100
288499911852,48cyclictest3211-21wget21:45:160
288499911849,34cyclictest30131-21ntp_states23:31:140
288499911847,33cyclictest7552-21sshd19:54:320
288499911761,45cyclictest1356-21snmpd22:58:540
288499911750,46cyclictest1356-21snmpd23:29:160
288499911748,32cyclictest2591-21sshd21:41:340
288499911670,37cyclictest7960-21chrt19:55:250
288499911646,33cyclictest1356-21snmpd21:23:490
288499911567,37cyclictest789-21/usr/sbin/munin21:35:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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