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2026-07-24 - 09:49
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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 rack5slot2.osadl.org (updated Fri Jul 24, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
101932197182,11sleep10-21swapper/119:09:001
99892190174,12sleep30-21swapper/319:06:243
99762187171,11sleep00-21swapper/019:06:140
99582183165,13sleep20-21swapper/219:06:002
256692430,0sleep10-21swapper/123:45:351
303732420,0sleep20-21swapper/221:38:122
308602410,0sleep10-21swapper/123:15:321
110892380,0sleep10-21swapper/122:50:061
238212370,1sleep31044299cyclictest23:29:073
252282350,0sleep30-21swapper/319:35:193
180062120,0sleep10-21swapper/123:09:591
257712100,0sleep00-21swapper/022:08:260
104319991,4cyclictest3303-21munin-run21:25:010
104319991,4cyclictest20699-21munin-run22:55:010
25733260,1sleep325726-21apt-get23:30:123
104429960,6cyclictest20942-21users22:05:223
104429960,1cyclictest18071-21ssh21:48:213
104349961,3cyclictest0-21swapper/121:35:121
104319961,5cyclictest1000-21awk19:55:010
104319960,3cyclictest17087-21idleruntime-cro00:15:000
104429955,0cyclictest0-21swapper/323:24:143
104429955,0cyclictest0-21swapper/323:13:353
104429955,0cyclictest0-21swapper/322:23:063
104429955,0cyclictest0-21swapper/321:34:133
104429955,0cyclictest0-21swapper/321:22:093
104429950,5cyclictest3152-21apt-get23:35:013
104429950,5cyclictest0-21swapper/322:35:113
104429950,5cyclictest0-21swapper/322:11:463
104429950,5cyclictest0-21swapper/300:18:133
104429950,4cyclictest25565-21users20:40:203
104429950,4cyclictest0-21swapper/322:40:123
104429950,4cyclictest0-21swapper/322:25:113
104429950,0cyclictest0-21swapper/300:11:043
104379955,0cyclictest31-21ksoftirqd/222:00:012
104379955,0cyclictest31-21ksoftirqd/200:00:142
104379953,2cyclictest24444-21kworker/2:000:06:492
104379950,4cyclictest8596-21ssh21:43:382
104379950,4cyclictest0-21swapper/223:30:112
104379950,1cyclictest17087-21diskstats22:20:152
104349951,3cyclictest0-21swapper/120:20:101
104349951,2cyclictest0-21swapper/123:25:101
104349951,2cyclictest0-21swapper/122:40:111
104349951,2cyclictest0-21swapper/122:05:131
104349951,2cyclictest0-21swapper/120:25:111
104349951,2cyclictest0-21swapper/119:10:121
104349950,5cyclictest0-21swapper/100:13:231
104319955,0cyclictest0-21swapper/000:34:190
104319955,0cyclictest0-21swapper/000:16:260
104319954,1cyclictest8955-21ssh23:54:190
104319954,1cyclictest28459-21cron19:45:000
104319950,5cyclictest7957-21ssh22:48:150
104319950,5cyclictest0-21swapper/022:55:240
104319950,5cyclictest0-21swapper/000:25:450
104319950,1cyclictest32600-21munin-run23:50:000
28711240,0sleep20-21swapper/221:53:472
104429944,0cyclictest5581-21kworker/3:123:53:073
104429944,0cyclictest5581-21kworker/3:123:08:203
104429944,0cyclictest0-21swapper/321:39:103
104429943,1cyclictest12016-21grep20:15:123
104429941,2cyclictest0-21swapper/319:50:123
104429941,1cyclictest0-21swapper/321:40:143
104429941,1cyclictest0-21swapper/321:05:133
104429940,4cyclictest5643-21df00:25:133
104429940,4cyclictest30961-21df00:05:153
104429940,4cyclictest29300-21ssh23:47:533
104429940,4cyclictest22292-21irqstats22:55:173
104429940,4cyclictest20446-21rm00:00:113
104429940,4cyclictest0-21swapper/323:55:033
104429940,4cyclictest0-21swapper/323:00:393
104429940,4cyclictest0-21swapper/322:15:063
104429940,4cyclictest0-21swapper/322:00:113
104429940,4cyclictest0-21swapper/321:55:583
104429940,4cyclictest0-21swapper/321:50:143
104429940,4cyclictest0-21swapper/321:25:063
104429940,4cyclictest0-21swapper/320:55:123
104429940,4cyclictest0-21swapper/300:39:083
104429940,3cyclictest3740-21sh22:30:043
104429940,3cyclictest30407-21ssh23:15:183
104429940,3cyclictest28915-21ntp_states00:20:183
104429940,3cyclictest18398-21users21:15:233
104429940,3cyclictest13427-21df_inode19:15:013
104429940,3cyclictest12490-21ssh22:50:173
104429940,1cyclictest3451-21sh20:00:013
104379943,1cyclictest32110-21ssh23:00:172
104379943,1cyclictest23806-21/usr/sbin/munin22:40:152
104379943,1cyclictest23741-21/usr/sbin/munin19:35:162
104379943,1cyclictest17876-21unixbench_singl23:25:192
104379943,1cyclictest10079-21ntpq22:00:162
104379942,2cyclictest20666-21kworker/2:122:33:332
104379942,2cyclictest0-21swapper/222:55:072
104379942,0cyclictest0-21swapper/222:35:112
104379941,3cyclictest802-21snmpd23:40:452
104379941,2cyclictest0-21swapper/219:40:122
104379940,4cyclictest6667-21fschecks_count23:20:142
104379940,4cyclictest18337-21ssh22:53:312
104379940,4cyclictest0-21swapper/222:45:122
104379940,4cyclictest0-21swapper/222:15:132
104379940,4cyclictest0-21swapper/222:10:122
104379940,4cyclictest0-21swapper/222:05:122
104379940,4cyclictest0-21swapper/221:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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