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2026-04-14 - 19:36
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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 Tue Apr 14, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
295132323293,20sleep20-21swapper/207:05:462
297672282256,17sleep10-21swapper/107:08:551
278922265238,18sleep30-21swapper/307:05:113
295542264235,19sleep00-21swapper/007:06:170
254312650,0sleep10-21swapper/109:32:321
78342610,1sleep20-21swapper/210:40:212
19482600,0sleep30-21swapper/310:56:523
246642590,0sleep20-21swapper/211:50:172
187382580,0sleep30-21swapper/309:28:463
276542570,1sleep30-21swapper/312:11:443
85772550,0sleep10-21swapper/111:20:241
202502550,0sleep10-21swapper/111:28:131
288812510,0sleep30-21swapper/309:35:033
189412440,0sleep20-21swapper/210:47:342
282112190,0sleep20-21swapper/210:53:272
267552190,0sleep10-21swapper/110:52:181
13092190,1sleep30-21swapper/307:15:133
13452170,0sleep20-21swapper/210:56:232
33672160,0sleep30-21swapper/308:30:213
299609993,3cyclictest14145-21sh11:05:001
299669984,2cyclictest275-21systemd-journal10:01:383
299669983,2cyclictest744350systemd-tmpfile12:20:003
299669980,7cyclictest13212-21ssh10:24:453
299609987,1cyclictest22-21ksoftirqd/110:50:011
299559984,1cyclictest21163-21awk09:50:010
27609280,0sleep00-21swapper/011:52:070
6096270,0sleep00-21swapper/010:40:070
299669974,2cyclictest275-21systemd-journal11:54:573
299669973,3cyclictest658-21snmpd11:58:593
299669973,3cyclictest26207-21ntpq08:10:183
299669973,3cyclictest1-21systemd12:25:183
299669973,2cyclictest275-21systemd-journal09:49:533
299669973,1cyclictest0-21swapper/311:43:123
299629975,1cyclictest7062-21cron07:30:002
299609973,3cyclictest674-21lldpd12:18:531
299609973,3cyclictest658-21snmpd09:39:281
299609973,3cyclictest658-21snmpd09:09:391
299609973,3cyclictest21781-21ntpq08:00:171
299609972,3cyclictest7076-21grep07:30:001
299609972,3cyclictest275-21systemd-journal12:37:171
299609972,3cyclictest25070-21uname12:10:151
299559973,3cyclictest22588-21awk10:50:120
299559973,1cyclictest21513-21munin-run10:10:010
21346270,0sleep00-21swapper/008:00:140
299669966,0cyclictest0-21swapper/310:45:123
299669966,0cyclictest0-21swapper/310:30:473
299669963,3cyclictest6570-21kworker/3:011:34:233
299669963,2cyclictest658-21snmpd12:00:083
299669963,2cyclictest658-21snmpd08:15:593
299669963,2cyclictest658-21snmpd08:05:353
299669963,2cyclictest30881-21ntpq09:55:183
299669963,2cyclictest26803-21sh10:52:203
299669963,2cyclictest24793-21ssh10:11:123
299669963,2cyclictest16798-21sh11:25:283
299669963,2cyclictest16126-21basename07:50:013
299669963,2cyclictest13968-21sshd11:24:403
299669963,2cyclictest12748-21sh12:22:443
299669963,1cyclictest0-21swapper/309:54:403
299669962,3cyclictest658-21snmpd12:36:393
299669962,3cyclictest658-21snmpd12:30:333
299669962,3cyclictest658-21snmpd12:30:333
299669962,3cyclictest658-21snmpd11:47:593
299669962,3cyclictest658-21snmpd11:15:013
299669962,3cyclictest658-21snmpd11:06:103
299669962,3cyclictest658-21snmpd09:21:263
299669962,3cyclictest658-21snmpd09:13:303
299669962,3cyclictest658-21snmpd09:00:423
299669962,3cyclictest658-21snmpd08:36:033
299669962,3cyclictest658-21snmpd08:02:203
299669962,3cyclictest658-21snmpd07:25:283
299669962,3cyclictest275-21systemd-journal08:51:003
299669962,3cyclictest275-21systemd-journal07:57:093
299669962,3cyclictest21543-21cat09:30:133
299669962,3cyclictest16576-21expr07:50:123
299669962,3cyclictest14465-21df10:25:143
299669962,1cyclictest0-21swapper/310:35:313
299669961,4cyclictest0-21swapper/312:05:173
299669961,4cyclictest0-21swapper/309:40:003
299669961,3cyclictest275-21systemd-journal07:39:023
299669961,2cyclictest31244-21rm10:15:183
299669960,6cyclictest0-21swapper/310:08:163
299669960,6cyclictest0-21swapper/309:16:033
299629966,0cyclictest0-21swapper/211:43:242
299629964,1cyclictest0-21swapper/211:20:142
299629963,2cyclictest9526-21ssh09:42:202
299629963,2cyclictest7983-21df12:00:122
299629963,2cyclictest7392-21cat07:30:132
299629963,2cyclictest275-21systemd-journal11:33:262
299629963,2cyclictest275-21systemd-journal10:35:492
299629963,2cyclictest275-21systemd-journal08:33:002
299629963,2cyclictest26177-21sh10:32:052
299629963,2cyclictest22654-21ssh09:30:242
299629963,2cyclictest17749-21cron09:05:002
299629963,2cyclictest14467-11brltty11:25:552
299629963,2cyclictest11935-21ssh12:22:072
299629963,1cyclictest0-21swapper/209:11:192
299629962,3cyclictest658-21snmpd12:19:422
299629962,3cyclictest658-21snmpd11:57:412
299629962,3cyclictest658-21snmpd11:13:132
299629962,3cyclictest658-21snmpd11:05:312
299629962,3cyclictest658-21snmpd11:00:072
299629962,3cyclictest658-21snmpd10:26:272
299629962,3cyclictest658-21snmpd10:12:062
299629962,3cyclictest658-21snmpd09:50:172
299629962,3cyclictest658-21snmpd09:45:532
299629962,3cyclictest658-21snmpd08:27:452
299629962,3cyclictest658-21snmpd08:09:442
299629962,3cyclictest658-21snmpd07:56:112
299629962,3cyclictest658-21snmpd07:49:382
299629962,3cyclictest658-21snmpd07:44:072
299629962,3cyclictest658-21snmpd07:21:492
299629962,3cyclictest504-21dbus-daemon08:35:062
299629962,3cyclictest4283-21seq12:37:152
299629961,4cyclictest23809-21munin-run12:30:002
299629960,6cyclictest0-21swapper/212:31:302
299629960,6cyclictest0-21swapper/212:31:302
299629960,4cyclictest275-21systemd-journal10:22:042
299629960,0cyclictest0-21swapper/211:46:532
299629960,0cyclictest0-21swapper/209:25:322
299609966,0cyclictest0-21swapper/112:05:291
299609966,0cyclictest0-21swapper/111:30:211
299609966,0cyclictest0-21swapper/110:05:481
299609963,2cyclictest8934-21cat11:40:221
299609963,2cyclictest8454-21sshd08:44:021
299609963,2cyclictest32378-21sed10:55:201
299609963,2cyclictest31719-21cron08:25:011
299609963,2cyclictest3056-21cut07:20:141
299609963,2cyclictest29398-21uname09:15:161
299609963,2cyclictest275-21systemd-journal10:12:531
299609963,2cyclictest24963-21ssh09:51:361
299609963,2cyclictest21122-21sh11:09:071
299609963,2cyclictest2047-21date07:15:171
299609963,2cyclictest13185-21fw_packets09:25:151
299609963,2cyclictest10758-21cut07:35:201
299609962,3cyclictest9320-21seq08:45:121
299609962,3cyclictest8328-21cat12:00:141
299609962,3cyclictest7531-21kworker/1:108:35:131
299609962,3cyclictest658-21snmpd12:21:271
299609962,3cyclictest658-21snmpd10:30:571
299609962,3cyclictest658-21snmpd10:15:241
299609962,3cyclictest658-21snmpd09:10:181
299609962,3cyclictest658-21snmpd08:22:351
299609962,3cyclictest658-21snmpd08:17:021
299609962,3cyclictest658-21snmpd08:11:241
299609962,3cyclictest658-21snmpd07:55:291
299609962,3cyclictest658-21snmpd07:42:581
299609962,3cyclictest658-21snmpd07:30:341
299609962,3cyclictest32519-21cat11:55:141
299609962,3cyclictest30567-21df_inode07:10:131
299609960,6cyclictest0-21swapper/111:48:101
299609960,6cyclictest0-21swapper/110:42:441
299609960,5cyclictest1473-21ssh11:16:171
299609960,5cyclictest13307-21munin-run10:05:021
299609960,3cyclictest21751-21munin-run10:30:011
299609960,0cyclictest0-21swapper/112:33:231
299609960,0cyclictest0-21swapper/112:33:231
299609960,0cyclictest0-21swapper/111:36:441
299609960,0cyclictest0-21swapper/111:10:521
299559966,0cyclictest0-21swapper/010:58:420
299559966,0cyclictest0-21swapper/010:48:570
299559963,2cyclictest7074-21tune2fs08:40:140
299559963,2cyclictest658-21snmpd09:56:330
299559963,2cyclictest5900-21ssh11:19:450
299559963,2cyclictest5748-21ssh10:20:070
299559963,2cyclictest4361-21ssh10:19:130
299559963,2cyclictest275-21systemd-journal11:25:000
299559963,2cyclictest24751-21sh11:10:320
299559963,2cyclictest12736-21ssh12:22:430
299559962,3cyclictest7500-21grep07:30:130
299559962,3cyclictest658-21snmpd12:29:270
299559962,3cyclictest658-21snmpd12:18:150
299559962,3cyclictest658-21snmpd12:12:060
299559962,3cyclictest658-21snmpd11:33:290
299559962,3cyclictest658-21snmpd11:25:080
299559962,3cyclictest658-21snmpd11:00:280
299559962,3cyclictest658-21snmpd09:50:410
299559962,3cyclictest658-21snmpd08:50:270
299559962,3cyclictest658-21snmpd08:49:510
299559962,3cyclictest658-21snmpd07:46:460
299559962,3cyclictest658-21snmpd07:40:520
299559962,3cyclictest658-21snmpd07:18:130
299559962,3cyclictest30895-21cut07:10:160
299559962,3cyclictest25949-21cat08:10:160
299559962,3cyclictest24560-21expr12:30:140
299559962,3cyclictest24560-21expr12:30:140
299559962,3cyclictest22258-21apt10:30:130
299559962,3cyclictest15357-21cat11:05:150
299559962,1cyclictest0-21swapper/011:37:240
299559962,1cyclictest0-21swapper/010:38:410
299559962,1cyclictest0-21swapper/010:02:120
299559962,1cyclictest0-21swapper/009:42:000
299559960,6cyclictest0-21swapper/012:08:490
299559960,6cyclictest0-21swapper/009:12:280
299559960,5cyclictest32523-21/usr/sbin/munin12:35:160
299559960,5cyclictest2989-21cat08:30:170
299559960,3cyclictest1561-21awk08:30:010
299559960,0cyclictest0-21swapper/011:45:290
299559960,0cyclictest0-21swapper/009:32:110
299559960,0cyclictest0-21swapper/009:20:100
299669952,3cyclictest475-21tr08:25:153
299669952,2cyclictest7692-21ls07:30:133
299669952,2cyclictest674-21lldpd09:08:453
299669952,2cyclictest658-21snmpd08:40:093
299669952,2cyclictest6459-21dpkg11:00:123
299669952,2cyclictest30837-21if_enp4s007:10:153
299669952,2cyclictest23505-21cat11:10:163
299669952,1cyclictest0-21swapper/311:35:163
299669952,1cyclictest0-21swapper/310:40:103
299669951,3cyclictest30432-21cat08:20:163
299669951,3cyclictest10118-21sed08:45:173
299669951,2cyclictest275-21systemd-journal07:20:013
299669951,1cyclictest0-21swapper/307:43:553
299669950,3cyclictest275-21systemd-journal08:58:563
299629955,0cyclictest0-21swapper/209:05:132
299629955,0cyclictest0-21swapper/207:10:282
299629953,1cyclictest7893-21timerandwakeup08:40:192
299629953,1cyclictest313472sleep211:35:042
299629953,1cyclictest19984-21diskmemload10:15:032
299629953,1cyclictest0-21swapper/209:20:052
299629952,2cyclictest9780-21cat08:45:142
299629952,2cyclictest658-21snmpd10:05:032
299629952,2cyclictest658-21snmpd09:35:012
299629952,2cyclictest658-21snmpd08:10:052
299629952,2cyclictest6307-21/usr/sbin/munin10:00:162
299629952,2cyclictest32716-21head07:15:012
299629952,2cyclictest31240-21cat11:15:142
299629952,2cyclictest30395-21basename08:20:172
299629952,2cyclictest28420-21ntp_kernel_err08:15:182
299629952,2cyclictest21349-21grep08:00:142
299629952,2cyclictest17050-21irqstats07:50:152
299629952,2cyclictest16872-21proc_pri12:05:192
299629952,2cyclictest11652-21expr08:50:132
299629952,1cyclictest0-21swapper/209:55:032
299629951,3cyclictest29359-21/usr/sbin/munin09:15:152
299629951,3cyclictest14225-21if_err_enp4s008:55:162
299629951,3cyclictest10221-21cat07:35:172
299629951,2cyclictest19984-21diskmemload12:10:092
299609953,1cyclictest658-21snmpd08:55:121
299609953,1cyclictest5242-21irqstats09:20:161
299609953,1cyclictest23472-21sh11:50:061
299609952,3cyclictest26178-21kworker/1:210:35:011
299609952,2cyclictest658-21snmpd09:55:031
299609952,2cyclictest5762-21ssh10:20:071
299609952,2cyclictest24053-21cut08:05:171
299609952,2cyclictest16475-21cat09:00:151
299609951,3cyclictest13563-21cat09:45:141
299609951,3cyclictest11749-21fschecks_count08:50:141
299609951,3cyclictest0-21swapper/112:25:061
299609950,4cyclictest5592-21expr09:40:141
299609950,4cyclictest2776-21if_enp4s008:30:161
299609950,3cyclictest275-21systemd-journal07:45:061
299609950,2cyclictest674-21lldpd07:51:071
299559953,1cyclictest9540-21/usr/sbin/munin07:35:160
299559953,1cyclictest23432-21df_inode08:05:130
299559952,2cyclictest658-21snmpd11:40:110
299559952,2cyclictest658-21snmpd08:35:060
299559952,2cyclictest658-21snmpd07:55:080
299559952,2cyclictest5225-21grep07:25:130
299559952,2cyclictest29974-21sensors_temp09:15:190
299559952,2cyclictest29850-21cat08:20:130
299559952,2cyclictest29047-21ssh09:35:110
299559952,2cyclictest18288-21ls09:05:130
299559952,2cyclictest17076-21cut07:50:150
299559952,2cyclictest16436-21cat09:00:140
299559952,2cyclictest14043-21sort10:25:130
299559952,2cyclictest12457-21ssh09:25:010
299559952,1cyclictest0-21swapper/012:00:040
299559951,3cyclictest658-21snmpd11:55:110
299559951,3cyclictest2859-21/usr/sbin/munin07:20:130
299559951,3cyclictest27608-21cat08:15:140
299559951,3cyclictest13903-21ls08:55:140
299559950,4cyclictest22304-21expr10:10:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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