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2025-12-18 - 13:16
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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
Characteristics of the highest latencies:
System rack1slot1.osadl.org (updated Thu Dec 18, 2025 00:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
129202224161,51sleep20-21swapper/219:09:232
127802210148,48sleep10-21swapper/119:07:331
127972201141,22sleep30-21swapper/319:07:473
126402197160,24sleep00-21swapper/019:05:430
171532600,0sleep10-21swapper/123:45:181
1305799150,14cyclictest8676-21apt-get21:15:112
1305799150,14cyclictest18017-21unixbench_singl19:15:212
1305799150,14cyclictest15402-21perf19:15:012
1305799140,13cyclictest2926-21perf19:55:002
13057991311,1cyclictest28-21ksoftirqd/223:35:002
1305799130,6cyclictest23623-21users22:50:212
1305799130,6cyclictest23623-21users22:50:212
1305799130,12cyclictest19770-21sed23:50:202
1305799130,12cyclictest0-21swapper/221:50:112
1305799130,1cyclictest7692-21sh00:35:152
1305799130,0cyclictest0-21swapper/223:15:132
1305799130,0cyclictest0-21swapper/221:10:112
1305799130,0cyclictest0-21swapper/219:25:202
1305799120,11cyclictest0-21swapper/221:20:162
1305799120,1cyclictest0-21swapper/219:20:182
1305299120,0cyclictest0-21swapper/122:55:111
13050991211,1cyclictest9-21ksoftirqd/019:15:010
13050991210,1cyclictest9-21ksoftirqd/022:55:010
13050991210,1cyclictest9-21ksoftirqd/022:55:010
1305799112,8cyclictest26822-21apt-get23:00:122
1305799110,10cyclictest0-21swapper/221:43:012
1305099119,1cyclictest9-21ksoftirqd/023:15:170
1305099119,1cyclictest9-21ksoftirqd/021:55:000
1305099119,1cyclictest9-21ksoftirqd/021:20:000
1305099119,1cyclictest9-21ksoftirqd/019:35:000
13050991110,1cyclictest9-21ksoftirqd/023:00:150
1305099110,5cyclictest318-21apt-get19:50:000
1305799106,3cyclictest707-21snmpd20:57:152
1305799106,3cyclictest707-21snmpd20:57:152
1305799102,7cyclictest30130-21grep20:50:142
1305799100,9cyclictest5723-21/usr/sbin/munin20:00:202
1305799100,9cyclictest0-21swapper/222:30:152
1305799100,9cyclictest0-21swapper/221:30:212
1305799100,10cyclictest0-21swapper/221:45:162
1305799100,1cyclictest9227-21ntpq20:05:182
1305799100,1cyclictest5987-21ntpq00:30:182
1305799100,1cyclictest0-21swapper/223:37:022
1305099109,1cyclictest9-21ksoftirqd/020:30:190
1305099108,1cyclictest9-21ksoftirqd/022:25:120
1305099101,4cyclictest16787-21sed22:40:000
130639998,1cyclictest35-21ksoftirqd/320:25:003
130639997,1cyclictest35-21ksoftirqd/320:30:003
130639997,1cyclictest35-21ksoftirqd/319:45:003
130639996,1cyclictest35-21ksoftirqd/319:59:553
130579998,1cyclictest28-21ksoftirqd/220:00:012
130579995,3cyclictest61650irq/122-eno120:40:002
130579990,9cyclictest0-21swapper/223:20:132
130579990,8cyclictest0-21swapper/222:20:162
130579990,8cyclictest0-21swapper/220:43:202
130579990,6cyclictest240-21systemd-journal23:10:002
130579990,4cyclictest0-21swapper/220:15:152
130579990,1cyclictest27524-21apt-get21:55:012
130579990,0cyclictest24047-21ntpq00:00:182
130579990,0cyclictest0-21swapper/222:00:222
130579990,0cyclictest0-21swapper/220:30:142
130509998,1cyclictest9-21ksoftirqd/023:45:000
130509998,1cyclictest9-21ksoftirqd/023:25:200
130509998,1cyclictest9-21ksoftirqd/023:10:000
130509998,1cyclictest9-21ksoftirqd/021:20:150
130509998,1cyclictest9-21ksoftirqd/020:40:000
130509998,1cyclictest9-21ksoftirqd/020:15:150
130509998,1cyclictest9-21ksoftirqd/019:55:010
130509998,1cyclictest9-21ksoftirqd/019:20:120
130509998,1cyclictest9-21ksoftirqd/000:30:180
130509998,1cyclictest9-21ksoftirqd/000:20:210
130509998,1cyclictest9-21ksoftirqd/000:00:010
130509997,1cyclictest9-21ksoftirqd/022:40:140
130509997,1cyclictest9-21ksoftirqd/022:15:140
130509997,1cyclictest9-21ksoftirqd/019:45:000
130639987,1cyclictest35-21ksoftirqd/321:40:003
130639986,1cyclictest707-21snmpd23:34:083
130639986,1cyclictest707-21snmpd23:18:343
130639986,1cyclictest707-21snmpd22:00:173
130639986,1cyclictest707-21snmpd21:44:463
130639986,1cyclictest35-21ksoftirqd/322:20:003
130639986,1cyclictest35-21ksoftirqd/321:15:003
130639985,1cyclictest35-21ksoftirqd/321:30:003
130639982,3cyclictest27028-21unixbench_multi21:50:193
130639981,4cyclictest4041-21apt-get23:20:143
130639980,7cyclictest24451-21python21:45:203
130639980,5cyclictest1-21systemd20:04:553
130579986,1cyclictest28-21ksoftirqd/223:10:092
130579982,5cyclictest3626-21grep00:25:182
130579982,5cyclictest25737-21/usr/sbin/munin19:35:152
130579980,8cyclictest0-21swapper/200:10:162
130579980,7cyclictest6100-21munin-run21:10:012
130579980,7cyclictest32111-21perf00:20:002
130579980,7cyclictest26604-21sendmail-msp23:00:012
130579980,7cyclictest2242-21chrt22:05:472
130579980,7cyclictest21659-21munin-run22:50:002
130579980,7cyclictest12023-21apt22:30:002
130579980,7cyclictest0-21swapper/200:20:202
130579980,6cyclictest240-21systemd-journal20:50:002
130579980,4cyclictest0-21swapper/219:30:152
130579980,0cyclictest0-21swapper/223:40:122
130529985,3cyclictest0-21swapper/123:30:201
130509988,0cyclictest9-21ksoftirqd/021:35:200
130509988,0cyclictest9-21ksoftirqd/020:05:140
130509987,1cyclictest9-21ksoftirqd/023:20:000
130509987,1cyclictest9-21ksoftirqd/022:10:110
130509987,1cyclictest9-21ksoftirqd/021:55:090
130509987,1cyclictest9-21ksoftirqd/021:40:120
130509987,1cyclictest9-21ksoftirqd/020:50:140
130509987,1cyclictest9-21ksoftirqd/020:45:130
130509987,1cyclictest9-21ksoftirqd/020:30:000
130509987,1cyclictest9-21ksoftirqd/019:50:150
130509987,1cyclictest9-21ksoftirqd/019:35:140
130509987,1cyclictest9-21ksoftirqd/000:05:150
130509986,1cyclictest9-21ksoftirqd/021:50:000
130509986,1cyclictest9-21ksoftirqd/000:15:120
130509986,1cyclictest25117-21/usr/sbin/munin20:40:140
130509983,1cyclictest31655-21/usr/sbin/munin20:55:170
130509983,1cyclictest31655-21/usr/sbin/munin20:55:170
130509982,5cyclictest9-21ksoftirqd/022:35:000
130509981,4cyclictest9-21ksoftirqd/000:10:110
130509980,0cyclictest9-21ksoftirqd/000:25:150
130639976,1cyclictest707-21snmpd19:46:253
130639976,1cyclictest35-21ksoftirqd/323:15:003
130639975,1cyclictest707-21snmpd23:01:193
130639975,1cyclictest707-21snmpd21:23:093
130639975,1cyclictest707-21snmpd19:21:223
130639975,1cyclictest3705-21cat22:10:153
130639974,2cyclictest707-21snmpd22:46:273
130639971,5cyclictest426-21apt-get22:05:123
130639971,4cyclictest28118-21ntpq20:45:173
130639970,5cyclictest18186-21apt-get23:50:103
130579976,1cyclictest61650irq/122-eno123:55:112
130579976,1cyclictest61650irq/122-eno119:45:012
130579971,5cyclictest17011-21aten_r1power_cu22:40:122
130579971,5cyclictest10429-21apt-get20:10:092
130579971,5cyclictest0-21swapper/222:35:122
130579970,6cyclictest6509-21aten_r1power_po23:25:122
130579970,6cyclictest5558-21expr22:15:132
130579970,6cyclictest3352-21fschecks_count22:10:142
130579970,6cyclictest28935-21wc19:40:152
130579970,6cyclictest25268-21apt-get00:05:132
130579970,6cyclictest18448-21cstates21:35:132
130579970,6cyclictest18021-21df20:25:132
130579970,6cyclictest1607-21apt-get21:00:122
130579970,6cyclictest15891-21aten2.4-expect23:45:112
130579970,6cyclictest15169-21apt20:20:112
130579970,6cyclictest13415-21apt-get21:25:112
130529970,7cyclictest0-21swapper/121:51:271
130529970,6cyclictest0-21swapper/119:15:161
130529970,1cyclictest0-21swapper/123:57:261
130529970,1cyclictest0-21swapper/119:53:071
130529970,1cyclictest0-21swapper/119:35:141
130529970,1cyclictest0-21swapper/119:25:171
130509977,0cyclictest9-21ksoftirqd/000:35:150
130509976,1cyclictest9-21ksoftirqd/023:50:200
130509976,1cyclictest9-21ksoftirqd/023:45:150
130509976,1cyclictest9-21ksoftirqd/023:30:150
130509976,1cyclictest9-21ksoftirqd/022:00:200
130509976,1cyclictest9-21ksoftirqd/021:05:120
130509976,1cyclictest9-21ksoftirqd/021:00:120
130509976,1cyclictest9-21ksoftirqd/019:15:010
130509975,1cyclictest707-21snmpd23:35:020
130509975,1cyclictest707-21snmpd22:23:500
130509975,1cyclictest707-21snmpd20:04:560
130509974,1cyclictest9-21ksoftirqd/021:14:560
130509970,6cyclictest0-21swapper/020:20:120
130639965,1cyclictest707-21snmpd22:33:333
130639965,1cyclictest707-21snmpd21:56:103
130639965,1cyclictest707-21snmpd19:38:493
130639965,1cyclictest357-21ntpq20:55:173
130639965,1cyclictest357-21ntpq20:55:173
130639965,1cyclictest35-21ksoftirqd/323:10:003
130639965,1cyclictest14426-21ntpq19:10:143
130639964,1cyclictest7186-21/usr/sbin/munin00:35:183
130639964,1cyclictest707-21snmpd23:28:383
130639964,1cyclictest707-21snmpd00:17:273
130639964,1cyclictest35-21ksoftirqd/320:40:003
130639964,1cyclictest13596-21hddtemp_smartct20:15:153
130639963,1cyclictest240-21systemd-journal20:14:563
130639962,1cyclictest32096-21apt-get00:20:013
130639961,4cyclictest0-21swapper/321:15:113
130639960,5cyclictest0-21swapper/320:50:163
130639960,1cyclictest240-21systemd-journal19:30:003
130529963,0cyclictest0-21swapper/100:35:211
130529961,3cyclictest0-21swapper/123:15:151
130529960,6cyclictest0-21swapper/121:18:331
130529960,6cyclictest0-21swapper/120:52:221
130529960,6cyclictest0-21swapper/120:28:561
130529960,6cyclictest0-21swapper/119:58:471
130529960,6cyclictest0-21swapper/119:48:371
130529960,6cyclictest0-21swapper/119:22:461
130529960,6cyclictest0-21swapper/100:27:211
130529960,5cyclictest0-21swapper/122:39:301
130529960,5cyclictest0-21swapper/121:00:141
130529960,5cyclictest0-21swapper/119:31:281
130529960,3cyclictest0-21swapper/123:40:101
130529960,3cyclictest0-21swapper/120:45:191
130509965,1cyclictest9-21ksoftirqd/022:05:020
130509965,1cyclictest9-21ksoftirqd/000:00:140
130509965,1cyclictest707-21snmpd21:34:370
130509960,6cyclictest9762sleep023:12:010
130509960,6cyclictest0-21swapper/020:10:090
130509960,0cyclictest0-21swapper/022:55:110
130509960,0cyclictest0-21swapper/022:45:110
130509960,0cyclictest0-21swapper/021:27:290
130509960,0cyclictest0-21swapper/019:25:120
130639954,1cyclictest8437-21cat22:20:153
130639954,1cyclictest5969-21ntpq00:30:173
130639953,1cyclictest707-21snmpd23:47:053
130639953,1cyclictest707-21snmpd22:52:123
130639953,1cyclictest707-21snmpd22:52:123
130639953,1cyclictest585-21rs:main3
130639953,1cyclictest16307-21apt-get19:15:113
130639952,1cyclictest294-21systemd-udevd22:25:083
130639952,1cyclictest294-21systemd-udevd00:09:083
130639951,3cyclictest23556-21fschecks_time00:00:153
130639951,0cyclictest24449-21apt-get22:55:113
130639950,4cyclictest5232-21proc_pri21:05:203
130639950,4cyclictest22806-21cut00:00:013
130639950,4cyclictest20183-21tr20:30:123
130639950,1cyclictest8075-21taskset20:05:113
130639950,1cyclictest2927-21apt-get19:55:003
130639950,1cyclictest24292-21irqstats19:30:163
130639950,1cyclictest0-21swapper/300:25:183
130639950,1cyclictest0-21swapper/300:10:113
130529955,0cyclictest0-21swapper/121:47:191
130529955,0cyclictest0-21swapper/120:43:011
130529955,0cyclictest0-21swapper/120:23:261
130529954,1cyclictest0-21swapper/123:24:401
130529951,1cyclictest0-21swapper/121:40:181
130529950,5cyclictest0-21swapper/123:39:201
130529950,5cyclictest0-21swapper/123:10:131
130529950,5cyclictest0-21swapper/123:06:421
130529950,5cyclictest0-21swapper/120:05:501
130529950,5cyclictest0-21swapper/100:33:031
130529950,5cyclictest0-21swapper/100:08:181
130529950,5cyclictest0-21swapper/100:01:451
130529950,4cyclictest0-21swapper/122:50:201
130529950,4cyclictest0-21swapper/122:50:201
130529950,4cyclictest0-21swapper/121:30:151
130529950,2cyclictest0-21swapper/100:20:141
130639944,0cyclictest13650irq/124-ahci[0020:40:113
130639943,1cyclictest707-21snmpd22:39:003
130639942,1cyclictest17429-21ls22:40:133
130639941,2cyclictest13478-21apt-get23:40:103
130639941,1cyclictest294-21systemd-udevd23:35:083
130639940,1cyclictest240-21systemd-journal21:00:013
130529944,0cyclictest0-21swapper/123:03:451
130529944,0cyclictest0-21swapper/122:30:371
130529944,0cyclictest0-21swapper/120:32:111
130529944,0cyclictest0-21swapper/120:14:171
130529944,0cyclictest0-21swapper/119:12:411
130529944,0cyclictest0-21swapper/100:17:511
130529943,1cyclictest12822sleep120:59:181
130529943,1cyclictest12822sleep120:59:181
130529941,2cyclictest0-21swapper/120:15:121
130529940,4cyclictest0-21swapper/122:21:541
130529940,4cyclictest0-21swapper/119:40:161
130529940,3cyclictest0-21swapper/122:40:161
130529940,2cyclictest0-21swapper/122:45:121
130529940,1cyclictest0-21swapper/122:05:161
130529940,1cyclictest0-21swapper/121:55:101
130529940,1cyclictest0-21swapper/121:05:141
130529940,1cyclictest0-21swapper/120:35:161
130529940,0cyclictest0-21swapper/122:25:201
130529940,0cyclictest0-21swapper/121:35:201
130529940,0cyclictest0-21swapper/121:20:201
130529940,0cyclictest0-21swapper/121:13:441
130529931,1cyclictest0-21swapper/123:50:101
130529931,1cyclictest0-21swapper/123:25:111
130529931,1cyclictest0-21swapper/122:15:111
130529931,1cyclictest0-21swapper/122:10:111
130529931,1cyclictest0-21swapper/120:00:121
130529930,3cyclictest0-21swapper/121:25:191
130529930,2cyclictest0-21swapper/122:00:161
130529930,1cyclictest0-21swapper/100:10:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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