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2026-01-01 - 14:23
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Thu Jan 01, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127972310280,20sleep10-21swapper/119:08:481
127662304274,20sleep20-21swapper/219:08:252
127492275215,19sleep00-21swapper/019:08:110
125242267212,18sleep30-21swapper/319:05:313
282012770,0sleep30-21swapper/322:20:003
74252590,0sleep10-21swapper/121:30:211
70942580,0sleep10-21swapper/122:25:311
135602580,0sleep00-21swapper/021:34:400
117812570,1sleep30-21swapper/323:05:213
138192560,0sleep10-21swapper/122:10:541
91882540,0sleep30-21swapper/322:08:513
197052530,0sleep20-21swapper/222:33:182
263542210,0sleep00-21swapper/023:50:190
118682190,0sleep00-21swapper/023:42:070
246312180,0sleep30-21swapper/320:45:153
299052170,0sleep00-21swapper/022:57:260
262532170,0sleep00-21swapper/021:23:070
246442170,0sleep00-21swapper/022:54:580
182582140,0sleep30-21swapper/322:32:153
17212130,0sleep30-21swapper/319:55:133
171252130,0sleep10-21swapper/123:08:401
1300899117,3cyclictest658-21snmpd22:03:292
309602100,1sleep130956-21turbostat22:40:001
8156290,2sleep18210-21idleruntime-cro21:50:001
23571290,1sleep00-21swapper/019:30:170
130089993,3cyclictest14028-21munin-run21:35:002
130059997,1cyclictest22-21ksoftirqd/119:15:011
130059996,2cyclictest9877-21ssh00:35:341
130019995,3cyclictest9375-21smart_sda20:10:210
130019995,3cyclictest658-21snmpd21:13:190
22452280,0sleep00-21swapper/021:57:400
13482280,0sleep30-21swapper/319:10:143
130119984,3cyclictest275-21systemd-journal21:34:593
130119983,3cyclictest275-21systemd-journal20:15:173
130089983,3cyclictest7119-21munin-run23:40:002
130059983,3cyclictest275-21systemd-journal00:30:011
130059982,3cyclictest30642-21apt00:30:011
130059982,3cyclictest26595-21munin-run00:10:001
130019983,3cyclictest275-21systemd-journal19:44:240
31048270,0sleep10-21swapper/123:16:051
24453270,0sleep20-21swapper/223:12:382
21855270,0sleep30-21swapper/300:25:013
18241270,0chrt0-21swapper/300:04:243
130119974,2cyclictest504-21dbus-daemon23:25:183
130119973,3cyclictest28216-21ntp_states19:40:303
130119973,3cyclictest275-21systemd-journal21:10:223
130119973,2cyclictest275-21systemd-journal22:56:013
130119973,2cyclictest275-21systemd-journal22:24:203
130119972,1cyclictest303152sh23:15:333
130089975,2cyclictest28-21ksoftirqd/219:15:022
130089974,2cyclictest504-21dbus-daemon21:41:192
130089973,3cyclictest658-21snmpd19:42:292
130089971,5cyclictest0-21swapper/223:05:012
130059973,3cyclictest658-21snmpd20:14:321
130059973,3cyclictest504-21dbus-daemon23:35:001
130059973,3cyclictest2447-21sshd22:23:291
130059973,1cyclictest0-21swapper/123:59:561
130059970,7cyclictest13118-21ssh23:43:001
130019973,3cyclictest897-21sshd19:50:580
130019973,3cyclictest658-21snmpd22:33:510
130019973,3cyclictest658-21snmpd19:36:290
130019973,3cyclictest32078-21sshd22:21:290
130019973,3cyclictest30458-21pluginstate19:45:170
130019973,3cyclictest29462-21ntpq20:55:170
130019973,3cyclictest15496-21cat20:25:170
130019973,3cyclictest12877-21ntpq21:15:190
130019972,3cyclictest275-21systemd-journal00:05:000
130119966,0cyclictest0-21swapper/320:25:213
130119963,2cyclictest658-21snmpd20:35:333
130119963,2cyclictest30977-21sh23:35:003
130119963,2cyclictest30183-21cat21:25:123
130119963,2cyclictest2513-21sh21:10:003
130119963,2cyclictest2507-21tune2fs23:00:143
130119963,2cyclictest11117-21ssh22:10:053
130119962,3cyclictest658-21snmpd23:10:073
130119962,3cyclictest658-21snmpd22:47:343
130119962,3cyclictest658-21snmpd22:36:523
130119962,3cyclictest658-21snmpd22:04:473
130119962,3cyclictest658-21snmpd21:49:273
130119962,3cyclictest658-21snmpd21:01:523
130119962,3cyclictest658-21snmpd19:50:043
130119962,3cyclictest6211-21wc23:20:213
130119962,3cyclictest275-21systemd-journal23:51:383
130119962,3cyclictest26958-21cat20:50:163
130119962,3cyclictest17372-21expr20:30:123
130119962,3cyclictest0-21swapper/300:15:133
130119962,3cyclictest0-21swapper/300:10:423
130119962,1cyclictest0-21swapper/323:55:053
130119962,1cyclictest0-21swapper/323:41:583
130119962,1cyclictest0-21swapper/322:25:173
130119962,1cyclictest0-21swapper/321:52:503
130119962,1cyclictest0-21swapper/300:37:193
130119962,1cyclictest0-21swapper/300:06:243
130119961,3cyclictest275-21systemd-journal21:56:453
130119960,5cyclictest24908-21taskset21:22:093
130119960,5cyclictest23642-21rm23:30:193
130119960,5cyclictest20992-21fschecks_time19:25:153
130119960,5cyclictest19124-21rm22:51:003
130119960,5cyclictest17461-21taskset21:36:113
130119960,2cyclictest31903-21fschecks_count22:40:153
130119960,0cyclictest0-21swapper/323:47:193
130119960,0cyclictest0-21swapper/321:18:023
130089966,0cyclictest0-21swapper/200:07:522
130089964,2cyclictest28-21ksoftirqd/221:05:002
130089964,1cyclictest31855-21df22:40:132
130089963,2cyclictest8528-21ssh21:13:002
130089963,2cyclictest658-21snmpd23:55:272
130089963,2cyclictest5386-21ssh00:33:422
130089963,2cyclictest3843-21systemctl22:05:182
130089963,2cyclictest31528-21ssh22:21:062
130089963,2cyclictest3142-21ssh21:28:302
130089963,2cyclictest30342-21sshd23:52:452
130089963,2cyclictest275-21systemd-journal21:50:282
130089963,2cyclictest23698-21/usr/sbin/munin23:30:192
130089963,2cyclictest2119-21basename19:55:162
130089963,2cyclictest15863-21grep19:15:022
130089963,2cyclictest13369-21grep00:20:132
130089963,2cyclictest0-21swapper/222:58:032
130089963,2cyclictest0-21swapper/222:50:202
130089963,2cyclictest0-21swapper/222:13:102
130089963,1cyclictest0-21swapper/222:37:042
130089962,3cyclictest658-21snmpd23:48:022
130089962,3cyclictest658-21snmpd22:47:122
130089962,3cyclictest658-21snmpd22:17:462
130089962,3cyclictest658-21snmpd21:39:052
130089962,3cyclictest658-21snmpd21:24:372
130089962,3cyclictest658-21snmpd21:17:122
130089962,3cyclictest658-21snmpd20:08:092
130089962,3cyclictest658-21snmpd19:31:042
130089962,3cyclictest658-21snmpd19:25:072
130089962,3cyclictest658-21snmpd00:15:142
130089962,3cyclictest658-21snmpd00:01:542
130089962,3cyclictest29099-21cat23:15:182
130089962,3cyclictest28595-21ls20:55:132
130089962,3cyclictest11575-21if_enp4s023:05:212
130089961,4cyclictest658-21snmpd00:37:362
130089961,3cyclictest674-21lldpd20:30:112
130089961,3cyclictest275-21systemd-journal19:50:012
130089960,6cyclictest0-21swapper/223:29:222
130089960,6cyclictest0-21swapper/221:57:282
130089960,6cyclictest0-21swapper/220:15:422
130089960,0cyclictest0-21swapper/222:27:262
130089960,0cyclictest0-21swapper/219:20:222
130059966,0cyclictest0-21swapper/122:07:091
130059963,2cyclictest624-21ssh23:35:211
130059963,2cyclictest32115-21grep19:50:131
130059963,2cyclictest3021-21apt21:10:121
130059963,2cyclictest20140-21head20:35:171
130059963,2cyclictest17935-21ssh00:04:101
130059963,2cyclictest16358-21sh21:17:211
130059963,1cyclictest0-21swapper/122:16:061
130059962,3cyclictest8982-21expr21:50:101
130059962,3cyclictest658-21snmpd23:46:241
130059962,3cyclictest658-21snmpd23:24:101
130059962,3cyclictest658-21snmpd21:55:531
130059962,3cyclictest658-21snmpd21:27:561
130059962,3cyclictest658-21snmpd20:27:031
130059962,3cyclictest658-21snmpd20:20:291
130059962,3cyclictest658-21snmpd19:20:401
130059962,3cyclictest658-21snmpd00:21:181
130059962,3cyclictest504-21dbus-daemon21:09:321
130059962,3cyclictest4030-21expr20:00:151
130059962,3cyclictest32195-21cat22:40:151
130059962,3cyclictest25670-21cat19:35:181
130059962,3cyclictest23912-21systemctl19:30:191
130059962,3cyclictest14204-21expr22:30:141
130059962,1cyclictest0-21swapper/123:00:161
130059961,3cyclictest275-21systemd-journal20:16:041
130059960,6cyclictest0-21swapper/122:57:541
130059960,5cyclictest29448-21awk20:55:161
130059960,3cyclictest275-21systemd-journal00:18:391
130059960,0cyclictest0-21swapper/122:00:521
130019966,0cyclictest0-21swapper/022:10:150
130019966,0cyclictest0-21swapper/000:20:230
130019963,2cyclictest8038-21ssh00:17:070
130019963,2cyclictest658-21snmpd20:00:500
130019963,2cyclictest658-21snmpd00:30:550
130019963,2cyclictest6230-21ssh22:06:430
130019963,2cyclictest504-21dbus-daemon23:40:010
130019963,2cyclictest4424-21sh23:00:530
130019963,2cyclictest4048-21sh23:19:570
130019963,2cyclictest304-21systemd-udevd20:32:360
130019963,2cyclictest26683-21forks22:00:150
130019963,2cyclictest24458-21diskstats20:45:130
130019963,2cyclictest24077-21cat21:40:130
130019963,2cyclictest22646-21load20:40:150
130019963,2cyclictest16935-21grep19:15:150
130019963,2cyclictest14076-21rm23:06:280
130019963,2cyclictest13298-21ssh00:00:570
130019963,2cyclictest1-21systemd21:50:290
130019962,3cyclictest7965-21cat22:45:150
130019962,3cyclictest6623-21cat20:05:140
130019962,3cyclictest658-21snmpd23:46:090
130019962,3cyclictest658-21snmpd23:20:370
130019962,3cyclictest658-21snmpd22:41:520
130019962,3cyclictest658-21snmpd22:18:210
130019962,3cyclictest658-21snmpd21:08:580
130019962,3cyclictest658-21snmpd20:54:150
130019962,3cyclictest658-21snmpd20:36:190
130019962,3cyclictest658-21snmpd20:16:470
130019962,3cyclictest658-21snmpd00:36:190
130019962,3cyclictest504-21dbus-daemon19:15:010
130019962,3cyclictest31009-21expr21:00:130
130019962,3cyclictest304-21systemd-udevd21:26:360
130019962,3cyclictest275-21systemd-journal19:26:250
130019962,3cyclictest24057-21threads22:35:180
130019962,1cyclictest0-21swapper/023:28:590
130019962,1cyclictest0-21swapper/021:47:530
130019962,1cyclictest0-21swapper/000:27:180
130019961,4cyclictest658-21snmpd00:14:530
130019960,6cyclictest0-21swapper/022:29:210
130019960,3cyclictest19866-21ssh23:10:270
130019960,0cyclictest0-21swapper/023:30:280
130119955,0cyclictest0-21swapper/300:30:013
130119953,1cyclictest234432sleep321:40:043
130119952,2cyclictest8268-21tr20:10:163
130119952,2cyclictest4118-21df_inode20:00:153
130119952,2cyclictest29180-21cat20:55:163
130119952,2cyclictest275-21systemd-journal20:09:563
130119952,2cyclictest25113-21tr19:35:153
130119952,2cyclictest18846-21head19:20:163
130119952,2cyclictest16110-21cpu19:15:123
130119952,2cyclictest12899-21ls20:20:143
130119952,1cyclictest0-21swapper/300:20:023
130119951,3cyclictest29767-21expr19:45:123
130119951,3cyclictest22853-21ls19:30:123
130119951,3cyclictest22400-21grep20:40:143
130089955,0cyclictest0-21swapper/220:46:162
130089955,0cyclictest0-21swapper/220:00:192
130089953,1cyclictest5229-21sh23:20:152
130089953,1cyclictest26265-21/usr/sbin/munin20:50:122
130089953,1cyclictest13181-21grep20:20:142
130089952,2cyclictest8212-21fw_packets23:40:142
130089952,2cyclictest658-21snmpd20:35:092
130089952,2cyclictest658-21snmpd20:25:112
130089952,2cyclictest525-21dpkg21:05:122
130089952,2cyclictest391-21sendmail_mailtr19:50:172
130089952,2cyclictest22833-21cat00:25:152
130089952,2cyclictest22514-21if_err_enp4s020:40:162
130089952,1cyclictest0-21swapper/200:10:392
130089951,3cyclictest905-21cat21:45:172
130089951,3cyclictest491-21systemd-logind20:10:172
130089951,3cyclictest25673-21cat19:35:172
130059953,1cyclictest20944-21fschecks_count19:25:151
130059952,2cyclictest7904-21ls22:45:131
130059952,2cyclictest658-21snmpd21:40:131
130059952,2cyclictest30805-21cat21:00:121
130059952,2cyclictest29672-21cat19:45:131
130059952,2cyclictest26992-21ssh00:10:071
130059952,2cyclictest26684-21forks20:50:131
130059952,2cyclictest25662-21diskstats23:50:151
130059952,2cyclictest22925-21cut20:40:191
130059952,2cyclictest2140-21if_enp4s019:55:161
130059952,2cyclictest17753-21cat20:30:151
130059952,2cyclictest16738-21cat19:15:131
130059952,2cyclictest15814-21sendmail_mailqu21:35:191
130059952,2cyclictest13577-21ssh23:25:051
130059952,1cyclictest0-21swapper/123:10:431
130059951,3cyclictest658-21snmpd20:05:201
130059951,3cyclictest27472-21cat19:40:251
130059951,3cyclictest24557-21fschecks_time20:45:141
130059950,4cyclictest0-21swapper/121:20:141
130059950,1cyclictest0-21swapper/122:50:141
130019952,2cyclictest658-21snmpd20:20:030
130019952,2cyclictest18875-21cut19:20:160
130019952,2cyclictest1797-21grep23:55:100
130019952,2cyclictest1572-21cat19:55:130
130019952,2cyclictest14787-21cstates21:35:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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