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2026-01-08 - 19:16
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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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackaslot8.osadl.org (updated Thu Jan 08, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
281462301238,20sleep10-21swapper/107:05:051
300602289229,19sleep20-21swapper/207:09:122
298412264234,20sleep30-21swapper/307:06:253
300732263232,20sleep00-21swapper/007:09:220
70872620,0sleep10-21swapper/111:15:161
141772590,0sleep30-21swapper/310:40:353
136922590,0sleep10-21swapper/108:55:131
89512570,0sleep10-21swapper/110:38:001
212462570,0sleep00-21swapper/010:25:540
303892560,0sleep00-21swapper/012:25:230
71982530,0sleep10-21swapper/112:30:451
82282520,0sleep10-21swapper/110:00:081
319682520,0sleep10-21swapper/110:51:021
143122190,0sleep00-21swapper/012:35:150
149722160,0sleep10-21swapper/110:41:091
166882150,0sleep20-21swapper/210:23:532
7672130,0sleep20-21swapper/208:25:552
281672130,0sleep10-21swapper/109:33:131
3022299100,1cyclictest2869-21idleruntime-cro07:20:012
21553290,0sleep00-21swapper/010:07:410
31719280,0sleep00-21swapper/012:07:360
31719280,0sleep00-21swapper/012:07:360
302229982,3cyclictest275-21systemd-journal08:40:012
302229981,4cyclictest3132-21idleruntime-cro10:35:022
302179987,1cyclictest22-21ksoftirqd/111:00:001
302179985,2cyclictest22-21ksoftirqd/107:20:011
27686280,0sleep10-21swapper/111:46:161
27486280,0sleep30-21swapper/309:32:423
302269975,2cyclictest34-21ksoftirqd/309:00:013
302269974,2cyclictest6164-21df_inode11:15:113
302269973,3cyclictest658-21snmpd12:17:243
302269973,3cyclictest275-21systemd-journal09:18:573
302269973,2cyclictest275-21systemd-journal08:41:163
302269973,1cyclictest0-21swapper/312:25:183
302269973,1cyclictest0-21swapper/312:02:203
302269972,3cyclictest275-21systemd-journal12:32:133
302269971,5cyclictest22153-21rm10:26:333
302269970,4cyclictest8338-21systemd-udevd08:45:113
302229974,2cyclictest658-21snmpd11:48:432
302229973,3cyclictest9022-21seq10:38:042
302229973,3cyclictest8131-21fw_packets11:35:142
302229973,3cyclictest658-21snmpd10:57:322
302229973,3cyclictest275-21systemd-journal09:33:582
302229972,3cyclictest275-21systemd-journal11:44:372
302229970,4cyclictest28793-21munin-run10:50:002
302229970,1cyclictest0-21swapper/212:10:582
302179976,1cyclictest22-21ksoftirqd/111:10:011
302179975,1cyclictest0-21swapper/109:30:011
302179974,2cyclictest501-21in:imuxsock11:45:011
302179974,2cyclictest275-21systemd-journal12:26:281
302179973,3cyclictest504-21dbus-daemon07:35:001
302179972,2cyclictest21422-21sendmail12:40:001
302179970,5cyclictest275-21systemd-journal11:25:001
302179970,4cyclictest7624-21munin-run07:30:001
302139974,2cyclictest275-21systemd-journal10:23:560
302139974,2cyclictest275-21systemd-journal08:37:310
302139974,2cyclictest275-21systemd-journal08:05:000
302139973,3cyclictest658-21snmpd12:30:420
302139973,3cyclictest23930-21sshd08:05:440
302139972,3cyclictest275-21systemd-journal11:05:270
302139970,6cyclictest4317-21ssh10:54:350
28122270,1sleep228125-21latency_hist12:25:002
7809260,0sleep00-21swapper/012:12:370
302269963,2cyclictest7038-21ssh10:36:373
302269963,2cyclictest663-21runrttasks09:35:303
302269963,2cyclictest658-21snmpd11:05:563
302269963,2cyclictest658-21snmpd10:58:323
302269963,2cyclictest658-21snmpd08:38:003
302269963,2cyclictest658-21snmpd08:10:513
302269963,2cyclictest658-21snmpd08:05:303
302269963,2cyclictest4508-21taskset11:33:033
302269963,2cyclictest27503-21ssh11:46:073
302269963,2cyclictest25657-21ssh11:26:023
302269963,2cyclictest24908-21ssh12:22:393
302269963,2cyclictest23931-21ssh09:11:383
302269963,2cyclictest23688-21ssh10:46:143
302269963,2cyclictest19529-21ssh11:04:203
302269963,2cyclictest18041-21seq09:45:273
302269963,2cyclictest17936-21head07:50:173
302269963,2cyclictest1345-21ssh10:33:453
302269963,2cyclictest1220-21ssh10:52:163
302269963,1cyclictest0-21swapper/310:17:463
302269962,3cyclictest9079-21cut11:55:003
302269962,3cyclictest658-21snmpd12:05:563
302269962,3cyclictest658-21snmpd12:05:563
302269962,3cyclictest658-21snmpd11:55:313
302269962,3cyclictest658-21snmpd11:42:243
302269962,3cyclictest658-21snmpd11:12:243
302269962,3cyclictest658-21snmpd10:12:493
302269962,3cyclictest658-21snmpd09:25:253
302269962,3cyclictest658-21snmpd07:43:133
302269962,3cyclictest658-21snmpd07:15:073
302269962,3cyclictest31138-21irqstats07:10:153
302269962,3cyclictest1159-21cut08:30:003
302269962,2cyclictest674-21lldpd11:39:243
302269962,1cyclictest0-21swapper/312:35:593
302269962,1cyclictest0-21swapper/310:20:433
302269962,1cyclictest0-21swapper/309:20:023
302269961,4cyclictest0-21swapper/310:05:493
302269961,2cyclictest3300-21ssh12:10:123
302269960,5cyclictest7421-21kworker/3:011:21:563
302269960,5cyclictest26686-21rm09:50:293
302269960,2cyclictest11267-21df08:50:123
302229963,2cyclictest9296-21head09:40:202
302229963,2cyclictest658-21snmpd12:15:132
302229963,2cyclictest504-21dbus-daemon10:01:042
302229963,2cyclictest504-21dbus-daemon09:46:542
302229963,2cyclictest275-21systemd-journal11:21:092
302229963,2cyclictest275-21systemd-journal09:16:002
302229963,2cyclictest275-21systemd-journal08:46:562
302229963,2cyclictest275-21systemd-journal08:33:552
302229963,2cyclictest275-21systemd-journal07:22:242
302229963,2cyclictest26986-21cat08:15:122
302229963,2cyclictest26986-21cat08:15:122
302229963,2cyclictest2568-21tr10:15:142
302229963,2cyclictest22646-21head11:05:212
302229963,2cyclictest16728-21sh11:59:242
302229963,2cyclictest16031-21sh09:00:122
302229963,2cyclictest11364-21grep08:50:132
302229963,2cyclictest1090-21sh12:27:432
302229962,3cyclictest8845-21uname07:30:192
302229962,3cyclictest6651-21expr08:40:142
302229962,3cyclictest658-21snmpd11:25:152
302229962,3cyclictest658-21snmpd10:26:382
302229962,3cyclictest658-21snmpd09:56:182
302229962,3cyclictest658-21snmpd09:12:102
302229962,3cyclictest658-21snmpd08:55:282
302229962,3cyclictest658-21snmpd08:14:062
302229962,3cyclictest658-21snmpd07:35:282
302229962,3cyclictest5639-21cat12:30:132
302229962,3cyclictest32532-21ntpq11:30:142
302229962,3cyclictest30705-21sensors11:10:182
302229962,3cyclictest29279-21apt-get10:50:102
302229962,3cyclictest275-21systemd-journal09:24:552
302229962,3cyclictest27100-21expr12:05:112
302229962,3cyclictest27100-21expr12:05:112
302229962,3cyclictest23104-21seq08:02:162
302229962,3cyclictest1828-21cat11:50:142
302229962,3cyclictest16530-21seq09:26:042
302229962,3cyclictest13673-21cat12:35:132
302229962,3cyclictest12656-21expr11:00:082
302229962,3cyclictest1-21systemd07:25:022
302229962,1cyclictest0-21swapper/212:02:372
302229961,3cyclictest27619-21rm09:51:082
302229960,5cyclictest7444-21head11:15:182
302229960,5cyclictest32434-21awk09:35:172
302179966,0cyclictest0-21swapper/111:27:241
302179963,2cyclictest8916-21gltestperf08:45:121
302179963,2cyclictest658-21snmpd11:31:451
302179963,2cyclictest658-21snmpd10:32:071
302179963,2cyclictest658-21snmpd07:14:471
302179963,2cyclictest3540-21ssh09:57:051
302179963,2cyclictest21031-21ssh10:25:451
302179963,2cyclictest1-21systemd08:20:171
302179963,2cyclictest1068-21ssh09:17:181
302179963,1cyclictest0-21swapper/110:13:251
302179962,3cyclictest9766-21expr11:55:121
302179962,3cyclictest658-21snmpd12:11:431
302179962,3cyclictest658-21snmpd12:07:341
302179962,3cyclictest658-21snmpd12:07:341
302179962,3cyclictest658-21snmpd10:48:021
302179962,3cyclictest658-21snmpd10:06:171
302179962,3cyclictest658-21snmpd09:48:211
302179962,3cyclictest658-21snmpd08:33:371
302179962,3cyclictest658-21snmpd08:26:131
302179962,3cyclictest658-21snmpd08:12:591
302179962,3cyclictest658-21snmpd08:01:111
302179962,3cyclictest552-21polkitd09:11:261
302179962,3cyclictest5099-21ls07:25:011
302179962,3cyclictest504-21dbus-daemon09:05:001
302179962,3cyclictest501-21in:imuxsock11:55:011
302179962,3cyclictest20161-21expr12:20:101
302179962,3cyclictest17843-21ntpq07:50:171
302179962,3cyclictest15984-21cat07:45:201
302179962,3cyclictest10203-21sshd09:40:581
302179962,1cyclictest0-21swapper/111:00:121
302179961,4cyclictest32307-21rm11:11:131
302179961,3cyclictest275-21systemd-journal10:20:411
302179960,6cyclictest0-21swapper/112:17:261
302179960,6cyclictest0-21swapper/112:01:421
302179960,6cyclictest0-21swapper/111:35:061
302179960,6cyclictest0-21swapper/110:15:071
302179960,6cyclictest0-21swapper/109:50:131
302179960,5cyclictest8619-21taskset09:21:361
302179960,5cyclictest674-21lldpd09:05:161
302179960,3cyclictest21097-21idleruntime-cro08:00:011
302139966,0cyclictest0-21swapper/009:55:240
302139963,2cyclictest8384-21ssh11:35:160
302139963,2cyclictest8104-21expr07:30:130
302139963,2cyclictest6916-21users09:20:200
302139963,2cyclictest658-21snmpd10:42:020
302139963,2cyclictest658-21snmpd09:18:560
302139963,2cyclictest658-21snmpd07:25:010
302139963,2cyclictest504-21dbus-daemon09:30:000
302139963,2cyclictest29116-21ssh10:30:210
302139963,2cyclictest27472-21uname08:15:160
302139963,2cyclictest27472-21uname08:15:150
302139963,2cyclictest23838-21sh09:11:350
302139963,2cyclictest23534-21open_files09:30:160
302139963,2cyclictest18548-21cat09:05:140
302139963,2cyclictest11582-21ssh10:59:460
302139963,2cyclictest10613-21grep07:35:120
302139963,1cyclictest0-21swapper/012:01:510
302139963,1cyclictest0-21swapper/011:58:570
302139962,3cyclictest658-21snmpd11:01:450
302139962,3cyclictest658-21snmpd10:38:070
302139962,3cyclictest658-21snmpd10:04:590
302139962,3cyclictest658-21snmpd09:38:050
302139962,3cyclictest658-21snmpd09:02:290
302139962,3cyclictest658-21snmpd08:55:160
302139962,3cyclictest658-21snmpd08:49:120
302139962,3cyclictest658-21snmpd08:43:450
302139962,3cyclictest658-21snmpd08:21:520
302139962,3cyclictest658-21snmpd07:55:530
302139962,3cyclictest658-21snmpd07:24:490
302139962,3cyclictest658-21snmpd07:19:070
302139962,3cyclictest32112-21sed11:30:130
302139962,3cyclictest2957-21sshd08:30:380
302139962,3cyclictest25823-21sed11:45:170
302139962,3cyclictest17213-21expr07:50:110
302139962,3cyclictest15818-21cat11:20:180
302139962,2cyclictest275-21systemd-journal11:15:010
302139962,1cyclictest27678-1kworker/u9:212:20:130
302139962,1cyclictest141rcu_preempt11:40:150
302139962,1cyclictest0-21swapper/011:10:220
302139962,1cyclictest0-21swapper/010:16:200
302139961,4cyclictest0-21swapper/010:10:150
302139960,6cyclictest19853-21diskmemload09:50:570
302139960,6cyclictest0-21swapper/012:15:390
302139960,6cyclictest0-21swapper/011:53:520
302269953,1cyclictest663-21runrttasks08:03:543
302269953,1cyclictest1113-21sh09:55:193
302269952,2cyclictest7848-21taskset07:30:063
302269952,2cyclictest7362-21ssh09:40:043
302269952,2cyclictest658-21snmpd08:20:123
302269952,2cyclictest658-21snmpd07:45:083
302269952,2cyclictest504-21dbus-daemon07:25:023
302269952,2cyclictest4123-21/usr/sbin/munin07:20:173
302269952,2cyclictest27366-21hddtemp_smartct08:15:153
302269952,2cyclictest27366-21hddtemp_smartct08:15:153
302269952,2cyclictest19666-21/usr/sbin/munin07:55:133
302269952,2cyclictest15742-21chrt09:00:123
302269952,2cyclictest1404-21cpu08:30:123
302269952,2cyclictest10778-21cat07:35:143
302269951,3cyclictest18258-21/usr/sbin/munin09:05:123
302269950,2cyclictest9002-21ntp_states10:00:133
302229952,2cyclictest658-21snmpd08:05:032
302229952,2cyclictest658-21snmpd07:10:012
302229952,2cyclictest29177-21apt-config08:20:012
302229952,2cyclictest19761-21cat07:55:142
302229952,2cyclictest18075-21cat09:05:102
302229952,2cyclictest17203-21expr07:50:112
302229952,2cyclictest15501-21missed_timers07:45:152
302229952,2cyclictest14143-21ssh10:40:322
302229951,3cyclictest25391-21tr10:10:132
302229951,3cyclictest18052-21cat10:05:192
302229951,3cyclictest13118-21cat07:40:142
302179953,1cyclictest24153-21taskset08:08:291
302179953,1cyclictest12850-21fschecks_count07:40:121
302179952,2cyclictest6615-21fschecks_time08:40:141
302179952,2cyclictest3906-21expr08:35:121
302179952,2cyclictest31566-21expr09:35:111
302179952,2cyclictest26733-21chrt08:15:011
302179952,2cyclictest26733-21chrt08:15:011
302179952,2cyclictest11551-21cat08:50:131
302179951,3cyclictest10341-21expr07:35:111
302139953,1cyclictest24966-21fschecks_count08:10:090
302139952,2cyclictest7645-21sort09:40:110
302139952,2cyclictest31681-21grep08:25:120
302139952,2cyclictest23223-21cstates11:25:110
302139952,2cyclictest21432-21cat10:45:130
302139952,2cyclictest16392-21cat09:45:120
302139952,2cyclictest15888-21switchtime07:45:200
302139952,2cyclictest11087-21cat08:50:110
302139951,3cyclictest30549-21cat07:10:130
302139950,2cyclictest12425-21/usr/sbin/munin07:40:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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