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2026-07-18 - 08:16
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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 Fri Jul 17, 2026 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16301213610,11sleep016300-21vmstat07:05:380
16880991778,148cyclictest1305-21snmpd10:17:230
168809917021,110cyclictest2853-21wget10:30:140
168809916741,103cyclictest8297-21apt-key10:50:250
16880991638,22cyclictest9867-21ntp_states08:50:430
16880991617,16cyclictest1305-21snmpd11:11:330
16880991609,19cyclictest15451-21users09:10:520
16880991597,40cyclictest1305-21snmpd09:01:010
16880991578,17cyclictest28420-21fw_packets07:55:310
168809915745,95cyclictest3650irq/20-4900000012:22:140
168809915710,18cyclictest20743-21wget07:25:110
168809915710,17cyclictest10914-21irqstats11:00:360
16880991569,17cyclictest32520-21users08:10:510
168809915638,105cyclictest3658-21ntpq08:25:440
168809915622,114cyclictest801-21dbus-daemon12:33:080
168809915617,29cyclictest17081-21wget07:10:140
16880991559,24cyclictest27195-21ntp_states12:05:420
16880991559,127cyclictest28034-21/usr/sbin/munin12:10:130
16880991558,22cyclictest32596-21ntp_states12:25:440
16880991557,17cyclictest30075-21apt-get12:17:070
168809915527,109cyclictest1305-21snmpd10:56:310
168809915520,14cyclictest19202-21latency_hist11:35:040
16880991549,16cyclictest5111-21grep10:40:010
16880991539,13cyclictest10250irq/56-4a10000011:50:170
16880991537,125cyclictest1887-21sendmail-msp08:20:020
16880991528,20cyclictest26444-21ntp_states09:55:420
16880991527,122cyclictest11846-21/usr/sbin/munin11:05:430
16880991525,11cyclictest19448-21cpu11:35:210
168809915220,120cyclictest2197-21df08:20:190
16880991519,15cyclictest13799-21diskstats09:05:220
16880991518,18cyclictest23388-21df07:35:180
168809915137,101cyclictest754-21systemd-journal08:42:300
168809915133,106cyclictest812-21avahi-daemon11:17:070
168809915120,17cyclictest1305-21snmpd12:01:430
16880991508,18cyclictest19335-21cron07:20:000
168809915036,95cyclictest10150irq/55-4a10000007:30:400
168809915029,111cyclictest21451-21ntp_states09:35:370
16880991499,17cyclictest6875-21ntp_states10:45:420
16880991498,17cyclictest1305-21snmpd07:20:260
16880991497,15cyclictest20788-21diskstats11:40:230
168809914935,103cyclictest11394-21runrttasks08:55:520
168809914841,94cyclictest16865-21runrttasks09:17:080
168809914840,96cyclictest17539-21runrttasks09:20:170
168809914831,102cyclictest19646-21sshd09:29:300
168809914828,100cyclictest29784-21/usr/sbin/munin10:10:320
168809914826,112cyclictest22643-21memory09:40:340
168809914823,115cyclictest24595-21irqstats11:55:320
16880991479,36cyclictest26008-21memory07:45:340
168809914735,99cyclictest22011-21df_inode11:45:180
168809914732,104cyclictest6841-21cron08:40:010
168809914732,103cyclictest9017-21runrttasks08:47:150
168809914729,100cyclictest1305-21snmpd11:23:310
16880991468,17cyclictest27164-21fw_conntrack07:50:250
168809914641,88cyclictest10150irq/55-4a10000010:01:140
168809914618,111cyclictest2898-21df_inode12:35:260
168809914611,16cyclictest1543-21wget10:25:120
16880991457,16cyclictest25191-21ntp_states09:50:390
168809914544,84cyclictest101ktimersoftd/008:30:320
16880991448,17cyclictest24758-21irqstats07:40:330
16880991447,19cyclictest1305-21snmpd10:21:200
16880991446,28cyclictest31789-21latency_hist08:10:030
168809914437,95cyclictest23917-21ntp_kernel_err09:45:350
168809914342,89cyclictest28978-21sshd10:05:430
16880991408,23cyclictest29743-21memory08:00:330
168809914026,105cyclictest20023-21df09:30:190
16880991398,17cyclictest59262chrt10:41:200
16880991396,112cyclictest1276-21runrttasks11:26:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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