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2026-05-31 - 10:09
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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 rackaslot8.osadl.org (updated Sun May 31, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
129182301274,18sleep20-21swapper/219:08:282
130012270239,20sleep10-21swapper/119:09:321
126982267235,21sleep00-21swapper/019:05:530
127542263231,21sleep30-21swapper/319:06:373
233372640,0sleep00-21swapper/023:57:240
178132600,0sleep00-21swapper/021:18:070
59722590,0sleep30-21swapper/323:46:503
140182570,0sleep1211rcuc/122:14:381
248762540,0sleep10-21swapper/120:45:001
66892530,0sleep30-21swapper/322:10:123
71402520,0sleep10-21swapper/122:49:221
241312520,0sleep10-21swapper/123:19:091
161062520,0sleep30-21swapper/300:12:403
197442180,0sleep20-21swapper/222:36:532
13652180,0sleep10-21swapper/100:04:011
128502180,0sleep10-21swapper/123:31:191
252172170,1sleep20-21swapper/220:45:132
211132160,0sleep20-21swapper/200:15:202
308382150,0sleep10-21swapper/123:42:231
96632140,0sleep30-21swapper/321:13:173
55392140,0sleep20-21swapper/221:10:202
184212140,0sleep10-21swapper/122:35:531
109392140,0sleep10-21swapper/121:14:151
1315099110,8cyclictest0-21swapper/223:10:112
1314199110,5cyclictest31697-21ssh22:25:030
1315499103,2cyclictest8738-21awk22:30:173
22882290,0sleep10-21swapper/121:40:181
15805290,0sleep10-21swapper/121:16:351
131549993,1cyclictest14086-21ssh00:30:223
131549992,3cyclictest19397-21ls20:30:183
131549992,2cyclictest15156-21sh23:13:363
131549992,1cyclictest0-21swapper/323:25:393
131549991,2cyclictest275-21systemd-journal00:06:333
131549990,6cyclictest0-21swapper/323:35:253
131549990,4cyclictest30266-21ntpq21:25:183
13289280,0sleep20-21swapper/222:52:442
131549982,2cyclictest7116-21ssh23:08:483
131549982,2cyclictest658-21snmpd19:53:463
131549982,2cyclictest5185-21ssh21:49:513
131549982,2cyclictest30432-21ssh00:01:273
131549982,2cyclictest28802-21sh22:23:133
131549982,2cyclictest22352-21ssh22:58:203
131549982,2cyclictest17771-21ssh21:37:233
131549982,2cyclictest14009-21ssh22:53:163
131549982,2cyclictest0-21swapper/322:27:183
131549982,1cyclictest0-21swapper/322:45:143
131549981,3cyclictest658-21snmpd20:10:483
131509986,1cyclictest175122sleep223:54:192
131449987,1cyclictest22-21ksoftirqd/122:25:011
131449986,1cyclictest22-21ksoftirqd/120:00:011
131449986,1cyclictest22-21ksoftirqd/120:00:011
131449982,3cyclictest504-21dbus-daemon21:30:011
12019280,0sleep20-21swapper/220:15:142
131549973,3cyclictest4453-21cat00:25:153
131509975,2cyclictest28-21ksoftirqd/219:15:012
131509973,3cyclictest24302-21apt22:40:122
131509973,3cyclictest20237-21cut00:35:002
131509972,3cyclictest17676-21munin-run23:35:002
131509970,3cyclictest275-21systemd-journal22:21:142
131509970,1cyclictest0-21swapper/223:45:402
131449976,1cyclictest22-21ksoftirqd/100:10:001
131449973,3cyclictest504-21dbus-daemon21:40:001
131449973,3cyclictest275-21systemd-journal20:10:011
131449971,1cyclictest7718-21apt-get22:30:121
131449970,4cyclictest16266-21dump-pmu-power22:55:001
131419975,1cyclictest19050-21ntp_states20:30:150
131419974,2cyclictest24212-21systemd-udevd20:41:250
131419973,3cyclictest275-21systemd-journal19:39:300
131419972,3cyclictest275-21systemd-journal22:04:340
9785260,0sleep00-21swapper/021:13:230
26570260,0sleep30-21swapper/319:35:153
131549963,2cyclictest28905-21ntpq00:20:153
131549963,2cyclictest275-21systemd-journal21:03:063
131549963,2cyclictest26137-21ntpq23:00:193
131549963,2cyclictest25791-21ssh21:22:473
131549963,2cyclictest24206-21ssh22:40:083
131549963,2cyclictest23257-21cat22:00:173
131549963,2cyclictest22976-21ssh00:16:363
131549963,2cyclictest20436-21ssh00:35:063
131549963,2cyclictest17210-21ssh22:15:423
131549963,1cyclictest0-21swapper/323:31:073
131549962,3cyclictest6943-21acpi20:05:123
131549962,3cyclictest658-21snmpd23:40:123
131549962,3cyclictest658-21snmpd23:20:273
131549962,3cyclictest658-21snmpd21:15:193
131549962,3cyclictest658-21snmpd20:51:563
131549962,3cyclictest658-21snmpd19:43:453
131549962,3cyclictest658-21snmpd19:23:263
131549962,3cyclictest658-21snmpd19:17:173
131549962,3cyclictest491-21systemd-logind20:17:103
131549962,3cyclictest32393-21awk22:05:193
131549962,3cyclictest275-21systemd-journal19:34:563
131549962,3cyclictest2716-21expr19:55:153
131549962,3cyclictest24177-11brltty20:44:463
131549962,3cyclictest22766-21ntpq21:40:173
131549962,3cyclictest1795-11brltty20:00:503
131549962,3cyclictest1795-11brltty20:00:503
131549962,3cyclictest1663-21cat21:05:123
131549962,3cyclictest16413-21df22:35:133
131549962,3cyclictest12171-21sort23:50:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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