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2026-03-26 - 00:15
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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 100 highest latencies:
System rack1slot3.osadl.org (updated Wed Mar 25, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2781473991514,0cyclictest0-21swapper/310:05:113
2781473991510,5cyclictest0-21swapper/311:25:153
278147399150,13cyclictest0-21swapper/309:35:113
278147399140,12cyclictest0-21swapper/308:30:123
278147399130,12cyclictest0-21swapper/307:50:123
278147399130,11cyclictest0-21swapper/311:50:123
278147399129,1cyclictest2789797-21turbostat07:30:003
278147399120,8cyclictest0-21swapper/311:00:113
278147399120,11cyclictest0-21swapper/312:28:103
278147399120,11cyclictest0-21swapper/310:40:123
278147399120,11cyclictest0-21swapper/309:49:213
278147399120,11cyclictest0-21swapper/308:15:123
278147399120,11cyclictest0-21swapper/308:00:123
278147399120,11cyclictest0-21swapper/307:35:363
278147399120,0cyclictest0-21swapper/307:15:173
2781473991111,0cyclictest0-21swapper/308:50:213
278147399111,0cyclictest0-21swapper/308:25:213
2781473991110,1cyclictest0-21swapper/311:35:023
2781473991110,0cyclictest0-21swapper/311:15:193
2781473991110,0cyclictest0-21swapper/310:35:113
2781473991110,0cyclictest0-21swapper/308:45:013
278147399110,11cyclictest0-21swapper/310:50:213
278147399110,10cyclictest0-21swapper/311:40:153
278147399110,10cyclictest0-21swapper/308:05:123
278147399110,0cyclictest0-21swapper/311:35:013
278147399110,0cyclictest0-21swapper/310:15:123
278147399110,0cyclictest0-21swapper/309:00:123
278147399110,0cyclictest0-21swapper/307:31:253
2781473991010,0cyclictest0-21swapper/312:10:163
2781473991010,0cyclictest0-21swapper/310:35:003
2781473991010,0cyclictest0-21swapper/307:10:123
278147399100,9cyclictest0-21swapper/310:55:173
278147399100,9cyclictest0-21swapper/310:10:123
278147399100,9cyclictest0-21swapper/307:44:553
278147399100,10cyclictest0-21swapper/311:10:173
278147399100,10cyclictest0-21swapper/311:05:173
278147399100,10cyclictest0-21swapper/309:40:163
278147399100,0cyclictest0-21swapper/312:20:193
278147399100,0cyclictest0-21swapper/309:55:113
27814739999,0cyclictest0-21swapper/312:00:023
27814739999,0cyclictest0-21swapper/310:48:483
27814739999,0cyclictest0-21swapper/309:32:273
27814739999,0cyclictest0-21swapper/309:15:003
27814739998,0cyclictest0-21swapper/309:15:113
27814739990,8cyclictest0-21swapper/311:55:173
27814739990,8cyclictest0-21swapper/308:10:163
2779646291,5sleep30-21swapper/307:05:113
27814739988,0cyclictest0-21swapper/312:19:413
27814739988,0cyclictest0-21swapper/312:05:173
27814739988,0cyclictest0-21swapper/311:48:223
27814739988,0cyclictest0-21swapper/310:05:013
27814739988,0cyclictest0-21swapper/308:40:003
27814739988,0cyclictest0-21swapper/307:25:013
27814739988,0cyclictest0-21swapper/307:25:003
27814739977,0cyclictest0-21swapper/310:25:173
27814739977,0cyclictest0-21swapper/309:25:113
27814739977,0cyclictest0-21swapper/308:20:133
27814739977,0cyclictest0-21swapper/307:55:173
27814739970,6cyclictest0-21swapper/309:10:013
2781291270,1sleep20-21swapper/207:09:462
27814739966,0cyclictest0-21swapper/312:35:153
27814739966,0cyclictest0-21swapper/312:35:013
27814739966,0cyclictest0-21swapper/309:20:143
27814739966,0cyclictest0-21swapper/308:55:143
27814739966,0cyclictest0-21swapper/307:45:203
27814739955,0cyclictest0-21swapper/311:20:283
27814739955,0cyclictest0-21swapper/310:20:313
27814739955,0cyclictest0-21swapper/309:50:113
27814739955,0cyclictest0-21swapper/308:45:023
2781065251,1sleep00-21swapper/007:06:520
14039850,3rtkit-daemon607-21dbus-daemon12:00:011
14039850,1rtkit-daemon328-21plymouthd07:05:051
2916962240,3sleep02917134-21python312:35:170
2869376241,2sleep02869460-21irqstats10:45:140
14039840,2rtkit-daemon766-21snmpd11:24:361
14039840,2rtkit-daemon622-21wpa_supplicant10:26:161
14039840,2rtkit-daemon2897740-21memory11:50:151
14039840,2rtkit-daemon2845365-21unattended-upgr09:49:211
14039840,2rtkit-daemon1-21systemd12:35:191
14039840,2rtkit-daemon1-21systemd12:31:471
14039840,2rtkit-daemon1-21systemd12:00:361
14039840,2rtkit-daemon1-21systemd07:30:281
2875196230,2sleep22875449-21latency_hist11:00:022
2874474230,0sleep0191rcu_preempt10:55:190
2858255230,1sleep12858281-21apt-get10:20:131
2841953230,2sleep22842056-21grep09:40:162
2838734231,1sleep0191rcu_preempt09:33:410
2822726230,1sleep12822744-21munin-run08:55:001
2784017230,1sleep02760471-21kworker/u16:1+events_unbound07:15:140
14039830,2rtkit-daemon772-21lldpd10:01:481
14039830,2rtkit-daemon769-21ntpd11:05:151
14039830,2rtkit-daemon766-21snmpd10:44:121
14039830,2rtkit-daemon592-21rpcbind08:10:531
14039830,1rtkit-daemon769-21ntpd08:06:321
14039830,1rtkit-daemon769-21ntpd07:59:221
14039830,1rtkit-daemon769-21ntpd07:44:331
14039830,1rtkit-daemon766-21snmpd11:30:311
14039830,1rtkit-daemon766-21snmpd11:03:491
14039830,1rtkit-daemon766-21snmpd09:55:351
14039830,1rtkit-daemon766-21snmpd09:38:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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