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2026-01-01 - 17:53
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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 Thu Jan 01, 2026 13:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12411222635,61sleep00-21swapper/007:06:570
128449913348,33cyclictest19441-21apt-key09:40:200
128449913271,47cyclictest3602-21sendmail-msp08:40:030
128449913152,21cyclictest11814-21apt-get11:22:120
128449913050,58cyclictest2010-21node10:00:440
128449912761,21cyclictest8402-21diskstats11:05:220
128449912647,38cyclictest18294-21munin-node07:30:120
128449912360,47cyclictest17574-21seq11:40:320
128449912353,51cyclictest19791-21apt-config07:35:130
128449912350,50cyclictest27790-21seq08:05:400
128449912256,35cyclictest10785-21wget11:15:150
128449912249,52cyclictest30165-21ntp_states12:30:480
128449912143,62cyclictest29408-21/usr/sbin/munin10:20:110
128449912061,40cyclictest1276-21runrttasks08:30:590
128449912059,21cyclictest27154-21systemctl12:20:010
128449912053,50cyclictest28219-21wget10:15:140
128449912046,40cyclictest31612-21users12:35:530
128449911968,33cyclictest26897-21/usr/sbin/munin10:10:140
128449911950,34cyclictest31017-21munin-run08:20:020
128449911949,52cyclictest1305-21snmpd10:30:070
128449911949,51cyclictest12920-21chrt09:15:150
128449911949,50cyclictest25167-21ntp_states12:10:440
128449911947,35cyclictest1305-21snmpd08:14:370
128449911853,45cyclictest6238-21seq08:50:130
128449911848,54cyclictest18863-21memory11:45:330
128449911847,51cyclictest2184-21runrttasks10:40:230
128449911845,53cyclictest15700-21ntp_states09:25:400
128449911845,36cyclictest4857-21ntp_states10:50:450
128449911845,34cyclictest24015-21processes12:05:460
128449911844,36cyclictest22036-21wget09:50:160
128449911776,31cyclictest14332-21runrttasks07:14:150
128449911749,34cyclictest27522-21fw_forwarded_lo12:20:290
128449911748,49cyclictest22803-21ntp_states07:45:410
128449911747,18cyclictest5892-21df_inode10:55:200
128449911671,35cyclictest31753-21users08:20:500
128449911646,51cyclictest8558-21munin-plugin-st09:00:010
128449911562,42cyclictest4023-21memory08:40:340
128449911547,48cyclictest20139-21/usr/sbin/munin11:50:340
128449911545,37cyclictest1305-21snmpd11:25:260
128449911473,31cyclictest15610-21runrttasks11:32:160
128449911465,37cyclictest17790-21/usr/sbin/munin09:35:420
128449911458,43cyclictest787-21haveged11:38:260
128449911455,38cyclictest15812-21/usr/sbin/munin07:20:120
128449911446,34cyclictest1305-21snmpd08:04:330
128449911437,20cyclictest11058-21apt-get09:12:110
128449911374,30cyclictest21494-21wc11:55:470
128449911354,45cyclictest29044-21sendmail_mailst12:25:490
128449911346,35cyclictest23889-21fw_conntrack07:50:260
128449911343,35cyclictest25896-21fw_forwarded_lo10:05:280
128449911269,33cyclictest754-21systemd-journal08:00:000
128449911268,33cyclictest6087-21grep08:50:010
128449911266,37cyclictest32580-21df_inode08:25:190
128449911251,21cyclictest16793-21fw_forwarded_lo09:30:280
128449911249,22cyclictest1068-21ntp_states10:35:390
128449911247,46cyclictest21336-21sshd09:46:070
128449911246,48cyclictest9816-21ntpq11:10:390
128449911162,38cyclictest14282-21df_inode09:20:230
128449911143,48cyclictest7016-21wget11:00:160
128449911139,35cyclictest14656-21wget07:15:150
128449911056,42cyclictest8885-21df09:00:200
128449911046,28cyclictest22639-21/usr/sbin/munin12:00:390
128449910969,30cyclictest17800-21runrttasks07:26:500
128449910860,37cyclictest21472-21chrt07:40:300
128449910855,42cyclictest1276-21runrttasks09:05:420
128449910855,41cyclictest3418-21df_inode10:45:200
128449910761,36cyclictest31157-21awk10:25:460
128449910647,18cyclictest23556-21ntp_states09:55:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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