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2026-05-30 - 20:16
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackbslot7.osadl.org (updated Sat May 30, 2026 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9587213390,24sleep20-21swapper/206:55:472
907121358,93sleep19111-21cstates06:55:261
10476991263,38cyclictest12375-21fschecks_count07:05:150
10476991154,34cyclictest352-21runrttasks10:16:070
10476991154,34cyclictest352-21runrttasks10:16:070
104809911237,41cyclictest20548-21sh10:52:131
104769910947,16cyclictest24739-21unixbench_multi09:10:450
1020921056,16sleep00-21swapper/006:58:310
104809910465,33cyclictest20439-21latency_hist09:05:081
1048099993,29cyclictest352-21runrttasks11:41:301
10476999846,24cyclictest15-21ksoftirqd/011:50:490
1048099972,62cyclictest7147-21apt-get10:30:261
10490999646,43cyclictest298-21in:imuxsock09:00:072
10490999646,43cyclictest298-21in:imuxsock09:00:072
10480999452,36cyclictest1-21systemd11:40:071
10480999452,36cyclictest1-21systemd11:40:071
1048099943,36cyclictest24017-21apt-get07:40:211
1048099943,36cyclictest24017-21apt-get07:40:211
10476999471,15cyclictest1-21systemd07:15:380
10490999337,48cyclictest0-21swapper/212:00:282
1049099933,28cyclictest10390-21latency_hist12:25:082
10476999375,12cyclictest300-21rs:main0
10490999241,43cyclictest0-21swapper/212:25:432
10490999241,43cyclictest0-21swapper/212:25:432
10490999238,49cyclictest0-21swapper/209:40:062
10490999137,46cyclictest0-21swapper/207:50:292
10490999135,49cyclictest0-21swapper/210:00:182
10490999135,49cyclictest0-21swapper/210:00:182
10480999152,33cyclictest352-21runrttasks11:00:201
10490999048,36cyclictest10931-21proc_pri11:30:392
10490999034,49cyclictest0-21swapper/211:05:202
1049099903,38cyclictest27014-21fschecks_time09:15:302
10490999026,55cyclictest23392-21systemctl09:10:062
10480999047,37cyclictest12399-21sh09:45:121
10480999047,37cyclictest12399-21sh09:45:121
10480999046,38cyclictest16217-21fschecks_time07:15:291
10476999064,20cyclictest19986-21ssh10:50:440
10490998938,44cyclictest0-21swapper/211:50:272
1049099893,31cyclictest21926-21wc10:55:102
10490998923,28cyclictest30475-21seq08:00:072
1048099892,6cyclictest0-21swapper/109:55:181
10476998961,20cyclictest12515-21sh08:45:060
1049099883,31cyclictest11910-21apt-get09:45:222
1049099883,31cyclictest11910-21apt-get09:45:222
1049099882,31cyclictest17953-21sh09:00:302
10480998840,40cyclictest0-21swapper/111:30:251
1048099883,6cyclictest0-21swapper/107:50:221
1048099883,31cyclictest10211-21cat09:40:441
1048099883,31cyclictest10211-21cat09:40:441
1048099882,30cyclictest21315-21diskmemload11:48:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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