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2026-09-02 - 12:30
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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 Wed Sep 02, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175322321294,18sleep10-21swapper/119:07:511
174912279223,19sleep30-21swapper/319:07:213
174072279250,19sleep20-21swapper/219:06:162
173672273244,19sleep00-21swapper/019:05:530
162752770,0sleep20-21swapper/221:15:012
162872600,0sleep20-21swapper/222:49:592
185342580,0sleep00-21swapper/022:31:390
42672570,0sleep00-21swapper/022:05:010
171102560,0sleep30-21swapper/323:09:023
68022550,0sleep10-21swapper/100:37:331
93752540,0sleep20-21swapper/223:41:412
268032530,0sleep30-21swapper/322:17:373
243232510,0sleep20-21swapper/222:54:362
311652220,0sleep20-21swapper/221:42:072
82772190,0sleep00-21swapper/000:19:390
231152190,1sleep10-21swapper/122:35:011
72172170,0sleep30-21swapper/323:21:363
269622140,0sleep30-21swapper/321:59:113
227592140,0sleep1211rcuc/123:11:411
292422130,0sleep20-21swapper/222:19:272
195582120,0sleep00-21swapper/021:35:170
12302120,0sleep10-21swapper/121:25:051
222302110,0chrt0-21swapper/222:34:262
178119995,3cyclictest15221-21snmpd22:01:433
178119987,1cyclictest34-21ksoftirqd/321:35:003
178119986,1cyclictest6884-21rm00:18:353
178009983,3cyclictest650-21lldpd21:15:210
178119976,1cyclictest15008-21apt-get22:30:133
178119974,2cyclictest504-21dbus-daemon21:12:183
178119973,3cyclictest9544-21cat00:20:113
178119973,3cyclictest275-21systemd-journal21:49:303
178119973,3cyclictest26755-21ntpq22:55:173
178119973,3cyclictest21216-21ntpq20:25:173
178119973,1cyclictest0-21swapper/321:28:223
178119972,3cyclictest275-21systemd-journal23:28:563
178119972,3cyclictest275-21systemd-journal22:35:513
178119970,5cyclictest275-21systemd-journal22:06:403
178119970,3cyclictest27742-21ssh23:15:133
178079974,2cyclictest15221-21snmpd21:18:582
178079973,3cyclictest504-21dbus-daemon21:30:012
178079973,3cyclictest275-21systemd-journal23:22:422
178079973,3cyclictest275-21systemd-journal22:36:412
178079973,3cyclictest275-21systemd-journal22:26:422
178079973,3cyclictest15221-21snmpd23:56:042
178079973,3cyclictest15221-21snmpd21:20:082
178079973,3cyclictest15221-21snmpd20:46:192
178079972,4cyclictest275-21systemd-journal23:31:322
178059973,3cyclictest15221-21snmpd23:09:301
178059972,3cyclictest6005-21turbostat22:25:011
178059970,6cyclictest15560-21munin-run20:15:001
178059970,1cyclictest5324-21perf23:40:001
178009975,2cyclictest12-21ksoftirqd/000:00:000
178009974,2cyclictest3267-21cron23:20:010
178009974,2cyclictest27289-21sshd19:26:080
178009973,3cyclictest275-21systemd-journal21:15:010
178009973,3cyclictest275-21systemd-journal20:55:000
178009973,3cyclictest10401-21apt-get23:05:120
178009973,1cyclictest0-21swapper/021:59:400
178119966,0cyclictest0-21swapper/320:00:203
178119963,2cyclictest7397-21ssh00:00:013
178119963,2cyclictest504-21dbus-daemon19:27:593
178119963,2cyclictest34-21ksoftirqd/323:30:143
178119963,2cyclictest34-21ksoftirqd/322:20:133
178119963,2cyclictest30859-21taskset20:46:323
178119963,2cyclictest23695-21rm23:12:223
178119963,2cyclictest17889-21ssh22:50:183
178119962,3cyclictest380-21interrupts22:40:153
178119962,3cyclictest31862-21sshd23:35:413
178119962,3cyclictest275-21systemd-journal20:51:023
178119962,3cyclictest19396-21ntpq21:35:153
178119962,3cyclictest17721-21timerandwakeup00:05:203
178119962,3cyclictest15221-21snmpd23:52:223
178119962,3cyclictest15221-21snmpd22:26:253
178119962,3cyclictest15221-21snmpd22:12:433
178119962,3cyclictest15221-21snmpd21:50:073
178119962,3cyclictest15221-21snmpd21:00:043
178119962,3cyclictest15221-21snmpd20:55:223
178119962,3cyclictest15221-21snmpd19:48:543
178119962,3cyclictest15221-21snmpd19:10:143
178119962,3cyclictest12225-21cat20:05:153
178119962,1cyclictest0-21swapper/300:25:043
178119962,1cyclictest0-21swapper/300:13:403
178119960,6cyclictest0-21swapper/323:56:063
178119960,6cyclictest0-21swapper/323:43:353
178119960,6cyclictest0-21swapper/322:45:443
178119960,5cyclictest15045-21hwlatdetect23:45:153
178119960,0cyclictest0-21swapper/300:38:553
178079966,0cyclictest0-21swapper/200:15:262
178079963,2cyclictest504-21dbus-daemon23:06:262
178079963,2cyclictest504-21dbus-daemon00:25:002
178079963,2cyclictest501-21in:imuxsock19:40:012
178079963,2cyclictest491-21systemd-logind21:35:172
178079963,2cyclictest3667-21ssh22:23:152
178079963,2cyclictest27329-21sshd19:26:322
178079963,2cyclictest24973-21grep00:10:132
178079963,2cyclictest15221-21snmpd22:55:292
178079963,2cyclictest15221-21snmpd20:50:012
178079963,2cyclictest15221-21snmpd19:41:592
178079963,2cyclictest1078-21sshd22:02:422
178079963,1cyclictest0-21swapper/221:30:252
178079962,3cyclictest275-21systemd-journal20:56:312
178079962,3cyclictest275-21systemd-journal20:01:462
178079962,3cyclictest23520-21expr23:50:142
178079962,3cyclictest1956-21cat23:00:112
178079962,3cyclictest15221-21snmpd23:36:452
178079962,3cyclictest15221-21snmpd22:41:472
178079962,3cyclictest15221-21snmpd20:38:432
178079962,3cyclictest15221-21snmpd20:31:312
178079962,3cyclictest15221-21snmpd20:28:312
178079962,3cyclictest15221-21snmpd19:45:202
178079962,3cyclictest15221-21snmpd19:23:502
178079962,3cyclictest15221-21snmpd19:15:072
178079962,3cyclictest15221-21snmpd19:14:322
178079962,3cyclictest15221-21snmpd00:06:162
178079962,3cyclictest0-21swapper/223:15:152
178079962,2cyclictest275-21systemd-journal19:31:202
178079962,1cyclictest0-21swapper/223:13:132
178079962,1cyclictest0-21swapper/221:46:162
178079962,1cyclictest0-21swapper/200:37:082
178079962,1cyclictest0-21swapper/200:01:412
178079961,1cyclictest0-21swapper/221:05:382
178079960,6cyclictest0-21swapper/223:47:462
178079960,5cyclictest32357-21taskset00:33:462
178059966,0cyclictest0-21swapper/122:17:261
178059966,0cyclictest0-21swapper/121:14:301
178059966,0cyclictest0-21swapper/120:15:411
178059966,0cyclictest0-21swapper/119:20:071
178059963,2cyclictest8965-21basename22:45:171
178059963,2cyclictest7552-21ssh21:47:191
178059963,2cyclictest504-21dbus-daemon20:33:561
178059963,2cyclictest31354-21ssh22:01:071
178059963,2cyclictest275-21systemd-journal22:15:011
178059963,2cyclictest19589-21ssh00:06:331
178059963,2cyclictest15540-21ssh21:33:151
178059963,2cyclictest15221-21snmpd23:00:461
178059963,2cyclictest11981-21ssh00:21:031
178059962,3cyclictest9383-21awk00:00:201
178059962,3cyclictest17583-21interrupts22:50:161
178059962,3cyclictest15221-21snmpd23:48:071
178059962,3cyclictest15221-21snmpd23:43:511
178059962,3cyclictest15221-21snmpd23:33:211
178059962,3cyclictest15221-21snmpd22:59:051
178059962,3cyclictest15221-21snmpd22:43:261
178059962,3cyclictest15221-21snmpd21:51:281
178059962,3cyclictest15221-21snmpd21:20:051
178059962,3cyclictest15221-21snmpd21:16:261
178059962,3cyclictest15221-21snmpd21:01:581
178059962,3cyclictest15221-21snmpd20:21:451
178059962,3cyclictest15221-21snmpd20:01:261
178059962,3cyclictest15221-21snmpd19:42:501
178059962,3cyclictest15221-21snmpd19:17:291
178059962,3cyclictest15221-21snmpd00:25:521
178059962,3cyclictest15221-21snmpd00:15:131
178059962,3cyclictest12610-21expr23:25:121
178059962,3cyclictest11734-21expr20:05:121
178059962,1cyclictest0-21swapper/123:15:061
178059962,1cyclictest0-21swapper/122:37:071
178059962,1cyclictest0-21swapper/121:55:141
178059960,6cyclictest0-21swapper/123:56:251
178059960,6cyclictest0-21swapper/122:05:171
178059960,6cyclictest0-21swapper/121:35:261
178059960,6cyclictest0-21swapper/120:44:331
178059960,6cyclictest0-21swapper/119:45:231
178059960,6cyclictest0-21swapper/119:30:211
178059960,2cyclictest20262-21munin-node19:15:001
178059960,0cyclictest0-21swapper/123:22:011
178059960,0cyclictest0-21swapper/120:59:501
178009966,0cyclictest0-21swapper/000:25:550
178009966,0cyclictest0-21swapper/000:10:170
178009963,2cyclictest9151-21ssh22:26:020
178009963,2cyclictest7202-21sh23:21:350
178009963,2cyclictest4777-21fschecks_count19:50:140
178009963,2cyclictest4035-21ssh21:26:000
178009963,2cyclictest3169-21rm22:22:520
178009963,2cyclictest28537-21ssh21:21:260
178009963,2cyclictest275-21systemd-journal20:41:320
178009963,2cyclictest25230-21tr20:35:130
178009963,2cyclictest22950-21sh00:09:010
178009963,2cyclictest15221-21snmpd22:15:160
178009963,2cyclictest15221-21snmpd20:14:180
178009962,3cyclictest9431-21cat20:00:130
178009962,3cyclictest3432-21find21:00:120
178009962,3cyclictest32583-21fschecks_count22:40:140
178009962,3cyclictest26842-21cat00:30:150
178009962,3cyclictest20955-21cat20:25:160
178009962,3cyclictest17315-21wc00:25:000
178009962,3cyclictest15221-21snmpd23:47:400
178009962,3cyclictest15221-21snmpd23:42:060
178009962,3cyclictest15221-21snmpd23:32:510
178009962,3cyclictest15221-21snmpd22:50:520
178009962,3cyclictest15221-21snmpd22:49:560
178009962,3cyclictest15221-21snmpd21:30:140
178009962,3cyclictest15221-21snmpd21:09:200
178009962,3cyclictest15221-21snmpd20:48:150
178009962,3cyclictest15221-21snmpd20:15:420
178009962,3cyclictest15221-21snmpd19:35:470
178009962,3cyclictest15221-21snmpd19:31:170
178009962,3cyclictest15221-21snmpd19:12:020
178009962,3cyclictest11196-21munin-run21:50:010
178009962,1cyclictest0-21swapper/023:10:540
178009962,1cyclictest0-21swapper/022:38:280
178009962,1cyclictest0-21swapper/022:10:460
178009962,1cyclictest0-21swapper/000:35:400
178009960,6cyclictest0-21swapper/023:35:530
178009960,5cyclictest4768-21ssh22:05:030
178009960,5cyclictest26936-21/usr/sbin/munin21:40:110
178009960,3cyclictest25062-21sshd19:21:070
178119953,2cyclictest23426-21apt-get19:20:133
178119953,1cyclictest32355-21grep19:40:123
178119953,1cyclictest15221-21snmpd20:30:163
178119952,2cyclictest6955-21expr19:55:163
178119952,2cyclictest30998-21cut19:35:173
178119952,2cyclictest29089-21smartctl19:30:203
178119952,2cyclictest27612-21head21:40:133
178119952,2cyclictest25393-21cat20:35:143
178119952,2cyclictest2260-21df23:00:123
178119952,2cyclictest16512-21ssh21:15:063
178119952,2cyclictest15221-21snmpd19:15:023
178119951,3cyclictest6858-21/usr/sbin/munin21:05:183
178119951,3cyclictest27561-21hddtemp_smartct20:40:153
178119951,3cyclictest18229-21expr20:20:133
178119951,3cyclictest16806-21grep20:15:193
178119951,3cyclictest14266-21/usr/sbin/munin20:10:173
178119951,1cyclictest0-21swapper/321:20:173
178119950,4cyclictest26413-21expr00:30:133
178119950,2cyclictest4470-21grep19:50:133
178079952,2cyclictest5304-21expr22:05:132
178079952,2cyclictest4777-21fschecks_count19:50:142
178079952,2cyclictest3804-21expr21:00:132
178079952,2cyclictest18043-21acpi20:20:122
178079952,2cyclictest17746-21sh00:25:112
178079952,2cyclictest15900-21cat20:15:132
178079952,2cyclictest15221-21snmpd23:25:032
178079952,2cyclictest15221-21snmpd20:40:012
178079952,2cyclictest13864-21cat22:10:142
178079952,2cyclictest13786-21ls20:10:142
178079952,2cyclictest12174-21cut21:50:152
178079952,2cyclictest11732-21cat20:05:122
178079950,4cyclictest6709-21wc19:55:162
178079950,4cyclictest19868-21ssh21:55:012
178059953,1cyclictest6474-21taskset22:25:121
178059953,1cyclictest30634-21gltestperf19:35:141
178059952,2cyclictest8105-21awk19:55:231
178059952,2cyclictest504-21dbus-daemon00:30:191
178059952,2cyclictest31991-21tail20:50:141
178059952,2cyclictest275-21systemd-journal21:06:241
178059952,2cyclictest26811-21sh21:40:041
178059952,2cyclictest25870-21expr19:25:131
178059952,2cyclictest23253-21expr23:50:131
178059952,2cyclictest15221-21snmpd20:35:041
178059951,3cyclictest20457-21cpuspeed_turbos20:25:141
178059951,3cyclictest15221-21snmpd20:45:041
178059950,3cyclictest5947-21sshd19:50:271
178059950,1cyclictest24762-21/usr/sbin/munin00:10:131
178009953,1cyclictest7629-21diskmemload23:50:080
178009953,1cyclictest25600-21sh22:55:090
178009953,1cyclictest17890-11brltty19:55:060
178009952,2cyclictest7650-21find00:00:120
178009952,2cyclictest756-21cat19:40:160
178009952,2cyclictest2803-21if_enp4s019:45:130
178009952,2cyclictest2104-21expr23:00:110
178009952,2cyclictest20854-21find19:15:130
178009952,2cyclictest12347-21ssh23:25:110
178009951,3cyclictest22891-21/usr/sbin/munin20:30:150
178009951,3cyclictest18448-21df_inode20:20:140
178009951,3cyclictest11347-21/usr/sbin/munin20:05:110
178009950,4cyclictest11795-21grep21:50:120
178009950,2cyclictest2405-21sensors_temp20:55:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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