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2026-04-22 - 02:34
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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
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Wed Apr 22, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3939980991610,1cyclictest0-21swapper/300:30:103
393998099120,11cyclictest0-21swapper/322:25:133
393998099120,11cyclictest0-21swapper/320:00:183
393998099119,1cyclictest0-21swapper/322:55:143
393998099119,1cyclictest0-21swapper/322:50:093
3939980991111,0cyclictest0-21swapper/323:50:163
3939980991111,0cyclictest0-21swapper/322:05:143
3939980991111,0cyclictest0-21swapper/321:21:103
3939980991111,0cyclictest0-21swapper/321:00:183
3939980991110,0cyclictest0-21swapper/323:15:163
3939980991110,0cyclictest0-21swapper/322:10:113
3939980991110,0cyclictest0-21swapper/319:40:003
393998099110,1cyclictest0-21swapper/321:40:173
393998099110,10cyclictest0-21swapper/321:15:183
393998099110,0cyclictest0-21swapper/323:35:023
3939980991010,0cyclictest0-21swapper/321:10:003
3939980991010,0cyclictest0-21swapper/320:25:213
393998099100,9cyclictest0-21swapper/300:20:193
393998099100,0cyclictest0-21swapper/321:35:133
393998099100,0cyclictest0-21swapper/321:30:113
393998099100,0cyclictest0-21swapper/320:35:013
393998099100,0cyclictest0-21swapper/300:10:123
39399809999,0cyclictest0-21swapper/321:55:153
39399809999,0cyclictest0-21swapper/321:45:113
39399809999,0cyclictest0-21swapper/320:05:143
39399809999,0cyclictest0-21swapper/319:50:143
39399809999,0cyclictest0-21swapper/300:25:143
39399809999,0cyclictest0-21swapper/300:05:213
39399809990,8cyclictest0-21swapper/323:35:023
39399809990,8cyclictest0-21swapper/319:20:163
39399809990,0cyclictest0-21swapper/320:45:013
39399809990,0cyclictest0-21swapper/319:10:133
39399809990,0cyclictest0-21swapper/300:15:183
39399809988,0cyclictest0-21swapper/323:40:133
39399809988,0cyclictest0-21swapper/323:20:193
39399809988,0cyclictest0-21swapper/322:35:143
39399809988,0cyclictest0-21swapper/321:50:173
39399809988,0cyclictest0-21swapper/321:25:193
39399809988,0cyclictest0-21swapper/321:10:203
39399809988,0cyclictest0-21swapper/320:25:003
39399809988,0cyclictest0-21swapper/320:12:153
39399809988,0cyclictest0-21swapper/319:55:123
39399809988,0cyclictest0-21swapper/319:40:173
39399809988,0cyclictest0-21swapper/300:35:143
3938602281,4sleep30-21swapper/319:05:143
39399809977,0cyclictest26450irq/132-ahci[0000:00:17.0]19:35:003
39399809977,0cyclictest0-21swapper/323:45:163
39399809977,0cyclictest0-21swapper/323:10:183
39399809977,0cyclictest0-21swapper/322:40:153
39399809977,0cyclictest0-21swapper/322:30:133
39399809977,0cyclictest0-21swapper/322:20:013
39399809977,0cyclictest0-21swapper/320:55:133
39399809977,0cyclictest0-21swapper/319:45:103
39399809976,0cyclictest0-21swapper/323:08:213
39399809970,7cyclictest0-21swapper/320:50:013
39399809966,0cyclictest0-21swapper/322:20:163
39399809966,0cyclictest0-21swapper/320:35:193
39399809966,0cyclictest0-21swapper/319:25:163
39399809966,0cyclictest0-21swapper/319:15:173
39399809960,6cyclictest0-21swapper/322:45:163
39399809960,6cyclictest0-21swapper/300:00:193
4007374250,0sleep14007378-21ssh21:59:001
39399809954,0cyclictest0-21swapper/320:15:163
39399809951,2cyclictest0-21swapper/323:00:123
39399809951,2cyclictest0-21swapper/323:00:123
39399809950,4cyclictest0-21swapper/320:50:193
39399809950,3cyclictest0-21swapper/323:25:113
3938428251,2sleep20-21swapper/219:05:142
4026708240,3sleep04026981-21df_inode22:45:140
39399809944,0cyclictest0-21swapper/323:56:183
39399809940,3cyclictest4008561-21chrt22:00:173
3939668242,1sleep10-21swapper/119:07:581
3995244230,1sleep23995272-21apt-get21:30:112
3990915230,2sleep03990925-21/usr/sbin/munin21:20:130
3941792230,2sleep00-21swapper/019:15:010
3938164231,1sleep00-21swapper/019:05:120
4064556220,1sleep20-21swapper/200:15:142
4062739220,0sleep0191rcu_preempt00:10:160
4053952220,1sleep10-21swapper/123:50:111
4048211220,1sleep04048413-21sed23:35:170
4032819220,0sleep00-21swapper/023:00:110
4032819220,0sleep00-21swapper/023:00:110
4030040220,1sleep00-21swapper/022:51:150
4023742220,1sleep24023746-21ssh22:36:002
4020027220,1sleep04020188-21date22:30:010
4013747220,1sleep00-21swapper/022:14:560
4011676220,1sleep14011690-21munin-run22:10:011
4005848220,1sleep04006099-21diskstats21:55:150
4002548220,1sleep20-21swapper/221:45:192
4000994220,1sleep10-21swapper/121:42:471
3998118220,1sleep23998290-21python321:35:202
3994731220,1sleep00-21swapper/021:30:010
3985949220,1sleep03986145-21unixbench-2d21:05:200
3984404220,0sleep20-21swapper/221:00:502
3982037220,1sleep03982206-21/usr/sbin/munin20:55:180
3979406220,1sleep13979536-21sed20:50:161
3972074220,1sleep03972242-21mailstats20:30:170
3960406220,1sleep13960556-21ntp_states20:00:171
3957946220,1sleep23958207-21cut19:55:142
3952542220,1sleep03952604-21sshd19:40:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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