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2026-05-17 - 10:29
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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 Sun May 17, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
85942303274,19sleep20-21swapper/219:07:162
85092278247,20sleep00-21swapper/019:06:260
87112275245,18sleep10-21swapper/119:08:481
84962255229,17sleep30-21swapper/319:06:173
59692220,0sleep30-21swapper/322:52:173
73352180,0sleep10-21swapper/121:34:501
256992180,0sleep20-21swapper/223:04:412
114312170,0sleep00-21swapper/022:35:320
310422160,0sleep10-21swapper/122:47:581
299752150,0sleep00-21swapper/021:48:190
290832140,0sleep10-21swapper/100:24:561
891699132,6cyclictest15277-21sh23:36:481
891699125,3cyclictest0-21swapper/123:28:301
891699122,6cyclictest8536-21ssh23:13:421
891699122,6cyclictest0-21swapper/122:54:121
891699112,5cyclictest17200-21seq20:36:471
891699112,5cyclictest16457-21ssh00:36:111
891699111,1cyclictest3500-21ssh22:11:121
891699111,1cyclictest2186-21apt-get20:05:121
891699110,2cyclictest22811-21rm23:41:111
891699110,2cyclictest2264-21sh00:08:191
891699110,1cyclictest5069-21ssh21:52:471
891699110,1cyclictest26153-21ssh21:25:521
891699110,1cyclictest11089-21apt-get20:25:111
136362110,0sleep30-21swapper/323:55:193
891699102,7cyclictest29489-21systemctl23:45:181
891699102,4cyclictest1707-21sh00:27:291
891699100,3cyclictest27967-21ssh00:04:291
891699100,3cyclictest1749-21ssh23:09:521
891699100,3cyclictest10394-21ssh23:34:391
891699100,2cyclictest6132-21sed00:30:151
891699100,2cyclictest30857-21diskmemload21:45:361
891699100,2cyclictest10291-21grep19:10:201
891699100,1cyclictest9120-21ssh21:55:161
891699100,1cyclictest32380-21dpkg20:00:111
891699100,1cyclictest24815-21/usr/sbin/munin22:05:161
891699100,1cyclictest22252-21rm21:43:391
891699100,1cyclictest19954-21ssh22:01:351
89169993,5cyclictest13966-21sh00:15:161
89169992,6cyclictest7378-21ssh00:10:531
89169992,6cyclictest658-21snmpd22:55:031
89169992,6cyclictest12127-21grep23:15:201
89169992,6cyclictest0-21swapper/122:24:461
89169992,1cyclictest29877-21munin-plugin-st19:55:011
89169991,3cyclictest32654-21mailstats21:10:191
89169991,1cyclictest8867-21apt-get20:20:121
89169991,1cyclictest8579-21cron20:20:011
89169991,1cyclictest1218-21apt-get22:30:111
89169991,0cyclictest18334-21apt-get23:00:121
89169990,2cyclictest8061-21ssh21:35:121
89169990,2cyclictest275-21systemd-journal20:15:011
89169990,2cyclictest25390-21ls19:45:011
89169990,2cyclictest21598-21chrt20:45:571
89169990,2cyclictest19655-21cat19:30:281
89169990,1cyclictest9244-21sh22:35:031
89169990,1cyclictest8301-21ntp_states21:15:191
89169990,1cyclictest658-21snmpd20:57:111
89169990,1cyclictest275-21systemd-journal20:52:141
89169990,1cyclictest21595-21ssh23:20:591
89169990,1cyclictest18700-21cron19:30:011
89169990,1cyclictest14169-21ssh22:18:031
89169990,1cyclictest12340-21apt-get23:55:121
89169990,1cyclictest0-21swapper/123:53:191
89169990,1cyclictest0-21swapper/122:28:231
89169990,1cyclictest0-21swapper/121:21:471
89239985,2cyclictest18503-21ssh23:20:003
89239984,3cyclictest504-21dbus-daemon23:40:003
89239983,2cyclictest275-21systemd-journal22:55:323
89169982,1cyclictest29125-21expr21:05:141
89169981,1cyclictest21189-21apt-get19:35:121
89169980,3cyclictest30189-21cat19:55:121
89169980,3cyclictest15994-21chrt19:22:481
89169980,2cyclictest25759-21wc19:45:121
89169980,2cyclictest18850-21grep22:40:181
89169980,2cyclictest18768-21cut20:40:181
89169980,2cyclictest18768-21cut20:40:181
89169980,1cyclictest28627-21apt21:05:011
89169980,1cyclictest15265-21cron20:35:011
89169980,1cyclictest11466-21munin-node19:15:011
89129986,1cyclictest12-21ksoftirqd/021:15:000
89129984,3cyclictest275-21systemd-journal20:04:300
89129983,2cyclictest761-21perf22:30:010
25996280,0sleep20-21swapper/222:25:172
89239974,2cyclictest275-21systemd-journal21:58:583
89239973,3cyclictest275-21systemd-journal22:06:583
89239973,3cyclictest20631-21packagekitd00:05:063
89239972,1cyclictest141rcu_preempt20:42:223
89239972,1cyclictest141rcu_preempt20:42:223
89239970,1cyclictest30857-21diskmemload00:13:033
89199974,2cyclictest28643-21dump-pmu-power00:05:002
89199974,2cyclictest28-21ksoftirqd/219:15:012
89199973,2cyclictest275-21systemd-journal20:25:202
89199972,3cyclictest20950-21munin-plugin-st00:20:002
89129973,3cyclictest4436-21df23:50:130
89129973,3cyclictest275-21systemd-journal19:31:540
18594270,0sleep30-21swapper/321:21:223
16032270,0sleep20-21swapper/220:35:132
89239966,0cyclictest0-21swapper/322:15:033
89239966,0cyclictest0-21swapper/321:41:213
89239966,0cyclictest0-21swapper/300:22:543
89239965,1cyclictest27678-21sh22:25:443
89239963,2cyclictest658-21snmpd23:12:063
89239963,2cyclictest30441-21cat00:25:173
89239963,2cyclictest275-21systemd-journal23:49:183
89239963,2cyclictest275-21systemd-journal21:27:283
89239963,2cyclictest25829-21ssh23:24:163
89239963,2cyclictest22912-21rm23:41:163
89239963,2cyclictest22909-21taskset19:37:113
89239963,2cyclictest19998-21ssh22:40:483
89239963,2cyclictest15494-21grep19:20:193
89239963,2cyclictest14060-21ssh21:19:173
89239962,3cyclictest7289-21cat20:15:143
89239962,3cyclictest658-21snmpd23:51:073
89239962,3cyclictest658-21snmpd23:04:063
89239962,3cyclictest658-21snmpd22:21:233
89239962,3cyclictest658-21snmpd21:11:143
89239962,3cyclictest658-21snmpd21:06:563
89239962,3cyclictest658-21snmpd20:36:373
89239962,3cyclictest658-21snmpd20:12:253
89239962,3cyclictest658-21snmpd00:30:413
89239962,3cyclictest28796-21ntpq19:50:173
89239962,3cyclictest26967-21ntpq22:45:163
89239962,3cyclictest23931-21sshd20:52:143
89239962,3cyclictest23881-21grep19:40:133
89239962,3cyclictest21580-21cat00:00:133
89239962,3cyclictest16816-21seq22:00:133
89239962,3cyclictest0-21swapper/321:33:053
89239962,1cyclictest0-21swapper/322:33:533
89239962,1cyclictest0-21swapper/322:12:393
89239962,1cyclictest0-21swapper/321:52:053
89239960,6cyclictest0-21swapper/322:36:353
89239960,5cyclictest27495-21missed_timers23:05:153
89239960,5cyclictest10833-21munin-run20:25:013
89239960,3cyclictest8784-21if_enp4s021:35:153
89239960,0cyclictest0-21swapper/321:46:473
89239960,0cyclictest0-21swapper/300:18:133
89199966,0cyclictest0-21swapper/221:50:242
89199966,0cyclictest0-21swapper/221:35:142
89199966,0cyclictest0-21swapper/221:28:232
89199966,0cyclictest0-21swapper/219:45:182
89199963,2cyclictest9404-21grep20:20:142
89199963,2cyclictest7704-21sh23:51:492
89199963,2cyclictest658-21snmpd23:31:302
89199963,2cyclictest6361-21cat00:10:192
89199963,2cyclictest6253-21ssh22:52:302
89199963,2cyclictest491-21systemd-logind22:43:262
89199963,2cyclictest32516-21ssh22:49:072
89199963,2cyclictest30611-21ssh21:48:492
89199963,2cyclictest30240-21ssh23:06:482
89199963,2cyclictest23945-21sshd20:52:222
89199963,2cyclictest20942-21ntp_states20:45:172
89199963,2cyclictest20079-21basename00:00:002
89199963,2cyclictest17096-21fschecks_time22:00:142
89199963,2cyclictest13662-21ssh22:56:492
89199963,2cyclictest13101-21ssh23:15:502
89199962,3cyclictest658-21snmpd23:20:332
89199962,3cyclictest658-21snmpd22:24:382
89199962,3cyclictest658-21snmpd22:15:562
89199962,3cyclictest658-21snmpd22:10:192
89199962,3cyclictest658-21snmpd21:32:182
89199962,3cyclictest658-21snmpd21:07:262
89199962,3cyclictest658-21snmpd19:56:042
89199962,3cyclictest658-21snmpd19:35:362
89199962,3cyclictest658-21snmpd19:27:142
89199962,3cyclictest658-21snmpd19:18:032
89199962,3cyclictest658-21snmpd00:38:202
89199962,3cyclictest26803-11brltty00:23:342
89199962,3cyclictest2253-21sshd00:27:552
89199962,3cyclictest2139-21latency_hist20:05:012
89199962,3cyclictest13969-21cat20:30:162
89199962,2cyclictest674-21lldpd00:32:102
89199962,1cyclictest0-21swapper/223:11:062
89199961,4cyclictest0-21swapper/221:20:572
89199960,6cyclictest0-21swapper/223:46:212
89199960,6cyclictest0-21swapper/223:40:132
89199960,6cyclictest0-21swapper/223:35:462
89199960,5cyclictest26448-21sed22:05:202
89199960,0cyclictest0-21swapper/222:31:112
89129965,1cyclictest12-21ksoftirqd/021:50:010
89129965,1cyclictest12-21ksoftirqd/021:25:000
89129964,1cyclictest13902-21hddtemp_smartct20:30:150
89129964,1cyclictest12-21ksoftirqd/000:00:010
89129963,2cyclictest8591-21ssh22:54:170
89129963,2cyclictest20159-21rm00:39:050
89129963,2cyclictest19379-21expr23:20:120
89129963,2cyclictest16391-21ssh23:57:100
89129963,2cyclictest16178-21ssh00:16:190
89129963,2cyclictest15253-21ssh23:17:310
89129963,2cyclictest14421-21cstates19:20:130
89129963,2cyclictest14382-21rm23:36:070
89129963,2cyclictest11704-21sh00:33:520
89129963,2cyclictest10064-21ssh21:35:330
89129962,3cyclictest658-21snmpd23:44:450
89129962,3cyclictest658-21snmpd23:14:210
89129962,3cyclictest658-21snmpd22:32:170
89129962,3cyclictest658-21snmpd22:18:440
89129962,3cyclictest658-21snmpd21:55:070
89129962,3cyclictest658-21snmpd21:30:210
89129962,3cyclictest658-21snmpd21:25:240
89129962,3cyclictest658-21snmpd21:00:260
89129962,3cyclictest658-21snmpd20:55:440
89129962,3cyclictest658-21snmpd20:19:310
89129962,3cyclictest658-21snmpd19:57:460
89129962,3cyclictest658-21snmpd19:49:150
89129962,3cyclictest658-21snmpd00:08:400
89129962,3cyclictest29224-21ntp_kernel_err23:45:160
89129962,3cyclictest275-21systemd-journal22:12:320
89129962,3cyclictest275-21systemd-journal19:55:010
89129962,3cyclictest25156-21expr22:05:130
89129962,3cyclictest20085-21sshd21:41:570
89129962,3cyclictest1-21systemd19:40:190
89129962,3cyclictest11409-21cat20:25:120
89129962,1cyclictest0-21swapper/023:30:120
89129962,1cyclictest0-21swapper/023:05:080
89129962,1cyclictest0-21swapper/022:22:230
89129962,1cyclictest0-21swapper/000:25:200
89129962,1cyclictest0-21swapper/000:12:570
89129960,6cyclictest0-21swapper/023:28:010
89129960,6cyclictest0-21swapper/022:02:010
89129960,6cyclictest0-21swapper/000:20:060
89129960,5cyclictest7808-21tail21:15:160
89129960,2cyclictest26962-21ntp_states22:45:160
2914260,0sleep30-21swapper/323:30:053
89239952,2cyclictest658-21snmpd20:55:083
89239952,2cyclictest27075-21cut21:00:143
89239952,2cyclictest26821-21readlink19:45:183
89239952,2cyclictest19218-21expr19:30:263
89239952,2cyclictest13982-21cat20:30:163
89239952,2cyclictest11049-21date20:25:013
89239951,3cyclictest9559-21fschecks_count19:10:153
89239951,3cyclictest658-21snmpd20:00:523
89239951,3cyclictest2503-21ls20:05:133
89239951,3cyclictest12316-21cat19:15:143
89239951,3cyclictest0-21swapper/323:25:093
89239951,3cyclictest0-21swapper/300:35:093
89239950,4cyclictest30677-21gltestperf19:55:143
89239950,4cyclictest19968-21/usr/sbin/munin20:45:143
89199952,2cyclictest658-21snmpd23:25:032
89199952,2cyclictest658-21snmpd20:55:052
89199952,2cyclictest51250irq/139-enp4s0-21:55:132
89199952,2cyclictest4586-21expr20:10:112
89199952,2cyclictest28992-21rm00:05:062
89199952,2cyclictest26966-21expr21:00:132
89199952,2cyclictest19657-21cat19:30:282
89199952,2cyclictest18055-21expr20:40:132
89199952,2cyclictest18055-21expr20:40:132
89199952,2cyclictest16398-21cat21:40:122
89199952,2cyclictest15156-21ntp_offset19:20:172
89199952,1cyclictest0-21swapper/222:35:102
89199951,3cyclictest7648-21df_inode21:15:152
89199951,3cyclictest658-21snmpd19:50:032
89199951,3cyclictest31914-21/usr/sbin/munin21:10:132
89199951,3cyclictest2212-21cpu20:05:132
89199950,4cyclictest23567-21cut19:40:132
89199950,3cyclictest275-21systemd-journal20:17:242
89129952,2cyclictest663-21runrttasks20:35:190
89129952,2cyclictest658-21snmpd20:40:020
89129952,2cyclictest658-21snmpd20:40:020
89129952,2cyclictest658-21snmpd20:20:100
89129952,2cyclictest658-21snmpd19:10:020
89129952,2cyclictest29012-21grep21:05:130
89129952,2cyclictest2433-21expr20:05:130
89129952,2cyclictest18228-21ssh23:00:090
89129952,2cyclictest18048-21expr22:40:130
89129952,2cyclictest10112-21cpuspeed22:55:130
89129951,3cyclictest658-21snmpd19:29:210
89129951,3cyclictest658-21snmpd19:15:060
89129951,3cyclictest4399-21/usr/sbin/munin20:10:100
89129951,3cyclictest22813-21hostname20:50:130
89129951,3cyclictest22257-21/usr/sbin/munin19:35:180
89129951,3cyclictest20661-21cat20:45:150
89239940,3cyclictest16508-21dpkg19:25:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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