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2026-03-30 - 13:44
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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 50 highest latencies:
System rack7slot8.osadl.org (updated Sun Mar 29, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
668823420,7sleep06684-21cut07:10:000
67359916939,109cyclictest19831-21mailstats08:00:460
6735991657,137cyclictest1305-21snmpd07:55:440
6735991656,138cyclictest1305-21snmpd08:40:350
6735991627,134cyclictest13827-21wget09:45:200
67359916214,126cyclictest754-21systemd-journal08:33:360
6735991618,15cyclictest23118-21users10:20:480
67359916029,112cyclictest754-21systemd-journal11:01:370
6735991598,128cyclictest6625-21sshd09:16:350
67359915915,125cyclictest805-21rs:main0
67359915840,94cyclictest754-21systemd-journal12:22:140
67359915817,121cyclictest754-21systemd-journal08:56:360
6735991578,16cyclictest30358-21apt-get08:47:100
6735991577,19cyclictest1305-21snmpd10:31:250
67359915728,111cyclictest17699-21sshd12:09:330
67359915725,113cyclictest10250irq/56-4a10000012:10:130
6735991567,21cyclictest15234-21diskstats09:50:240
6735991567,131cyclictest1305-21snmpd09:06:040
67359915625,110cyclictest1305-21snmpd09:21:080
67359915620,116cyclictest22463-21wget12:25:090
67359915525,113cyclictest31251-21wget10:55:100
67359915510,17cyclictest29301-21mailstats10:45:480
67359915418,119cyclictest13307-21gpgv09:45:040
6735991537,16cyclictest10876-21memory07:25:320
67359915341,100cyclictest18241-21sshd10:01:360
67359915338,96cyclictest28605-21vmstat08:35:510
6735991529,124cyclictest14692-21ntp_states07:40:420
6735991528,20cyclictest1305-21snmpd10:36:270
6735991527,133cyclictest19161-21runrttasks10:05:400
67359915227,106cyclictest11933-21cpu07:30:140
67359915221,112cyclictest15460-21wget12:00:110
6735991517,22cyclictest11884-21diskstats11:45:370
6735991516,123cyclictest22872-21latency_hist08:15:020
67359915141,91cyclictest10150irq/55-4a10000007:45:400
6735991508,17cyclictest19514-21ntp_states12:15:370
6735991507,20cyclictest754-21systemd-journal09:00:440
6735991507,131cyclictest25146-21chrt12:35:230
6735991507,126cyclictest17398-21readlink10:00:010
67359915039,99cyclictest6851-21aten_r7power_cu07:10:140
67359915029,100cyclictest1257-21/usr/sbin/munin11:05:440
67359915017,113cyclictest29990-21wget10:50:110
67359915012,126cyclictest23857-21df12:30:130
6735991499,127cyclictest2926-21ntp_states11:10:420
67359914921,111cyclictest10404-21runrttasks11:40:370
6735991489,124cyclictest25212-21sshd08:23:350
6735991487,14cyclictest7724-21diskstats11:30:190
6735991487,121cyclictest13446-21ntp_states07:35:460
67359914839,96cyclictest8150-21aten_r7power_vo07:15:140
67359914833,104cyclictest1276-21runrttasks09:30:510
67359914828,108cyclictest13065-21df11:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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