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2026-07-19 - 13:34
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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
Characteristics of the highest latencies:
System rackeslot2.osadl.org (updated Sun Jul 19, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
188151021150,1sleep00-21swapper/022:01:180
184811321090,2sleep30-21swapper/321:41:093
16621902950,3sleep30-21swapper/319:16:073
19636632700,1sleep11963662-21ssh22:57:511
18207632320,2sleep30-21swapper/321:21:133
1653531992822,2cyclictest17750irq/127-ahci[0000:00:17.0]19:20:010
1653532992616,3cyclictest1904207-21runrttasks22:17:231
1653532992515,3cyclictest1933715-21runrttasks22:37:141
18878132240,2sleep20-21swapper/222:06:132
1653532992417,2cyclictest69250irq/121-eno100:40:001
1653532992415,3cyclictest1307-21mta-sts-daemon23:36:121
1653531992314,5cyclictest1999800-21timerwakeupswit23:21:220
1157598230,3rtkit-daemon676-21mta-sts-daemon21:49:561
1653532992219,2cyclictest664-21dbus-daemon21:10:021
1653532992211,3cyclictest2043806-21grep23:51:181
1653531992220,1cyclictest0-21swapper/000:16:050
1653531992219,2cyclictest1653529-21cyclictest21:40:020
1653531992213,5cyclictest2091677-21irqrtprio00:26:120
1653531992213,3cyclictest1984875-21/usr/sbin/munin23:11:170
1653531992213,2cyclictest684-21systemd-logind19:10:010
1653531992212,5cyclictest0-21swapper/022:56:150
3240591210,1phc2sys0-21swapper/322:25:033
3240591210,1phc2sys0-21swapper/322:25:033
165353299219,7cyclictest0-21swapper/122:31:191
1653532992119,1cyclictest2097259-21dump-pmu-power00:30:001
1653532992118,2cyclictest2016278-21systemd-run23:35:021
1653532992118,2cyclictest1823794-21grep21:25:011
1653532992117,2cyclictest0-21swapper/123:15:011
1653532992111,3cyclictest1885665-21kthreadcore22:06:121
1653531992118,2cyclictest1660014-21systemd-run19:15:020
1653533992017,1cyclictest0-21swapper/222:20:012
1653532992017,2cyclictest1912607-21systemd-run22:25:021
1653532992017,2cyclictest1912607-21systemd-run22:25:021
1653532992017,2cyclictest0-21swapper/100:20:001
165353199209,7cyclictest2101193-21kthreadcore00:31:130
165353199209,6cyclictest0-21swapper/023:05:020
165353199209,6cyclictest0-21swapper/000:06:190
165353199208,6cyclictest11574-21rtkit-daemon22:09:350
165353199206,8cyclictest1793445-21kthreadcore21:01:140
165353199206,7cyclictest1817127-21head21:21:060
165353199206,6cyclictest1809094-21kworker/u16:2+xprtiod22:25:480
165353199204,5cyclictest1771725-21aten2.4-expect20:46:050
165353199204,4cyclictest2044145-21switchtime23:51:210
1653531992016,1cyclictest491rcuog/222:10:070
1653533991916,2cyclictest0-21swapper/219:15:022
1653533991916,1cyclictest0-21swapper/223:10:012
165353299197,4cyclictest0-21swapper/122:54:241
1653532991917,1cyclictest1949917-21/usr/sbin/munin22:50:021
1653532991916,2cyclictest1871961-21kthreadcore21:56:151
1653532991916,1cyclictest0-21swapper/100:10:011
1653532991914,3cyclictest1865807-21kthreadcore21:51:151
165353199194,3cyclictest2009537-21cpuspeed_turbos23:31:090
1653531991916,2cyclictest1833359-21kthreadcore21:31:130
1653531991916,2cyclictest1716746-21sendmail20:00:000
1653531991916,2cyclictest1306-21mta-sts-daemon21:56:100
1653531991915,3cyclictest1975271-21kthreadcore23:06:150
1653531991915,3cyclictest1731988-21kthreadcore20:11:160
1653531991915,3cyclictest1668379-21aten_repower_en19:21:060
1653531991914,1cyclictest69250irq/121-eno100:04:430
1653531991913,5cyclictest2018331-21kthreadcore23:36:150
1653531991912,6cyclictest1956983-21latency_hist22:55:010
1653531991912,6cyclictest1920966-21cstates22:31:080
1653531991911,5cyclictest2084098-21ssh00:21:130
1653531991911,4cyclictest0-21swapper/021:46:110
1653531991910,5cyclictest2047674-21kthreadcore23:56:140
3240591180,2phc2sys0-21swapper/322:52:413
165353399182,6cyclictest0-21swapper/220:51:072
1653533991815,1cyclictest0-21swapper/223:35:012
1653533991815,1cyclictest0-21swapper/200:00:012
165353299187,3cyclictest0-21swapper/121:39:281
1653532991815,2cyclictest2031184-21systemd-run23:45:021
1653532991815,2cyclictest1806476-21kthreadcore21:11:151
1653532991815,2cyclictest1806476-21kthreadcore21:11:151
1653532991815,2cyclictest1659960-21cpuspeed19:15:021
1653532991815,2cyclictest0-21swapper/123:10:021
1653532991812,3cyclictest0-21swapper/122:15:031
165353299181,11cyclictest664-21dbus-daemon19:10:011
165353199189,5cyclictest1752216-21pmu-power20:26:160
165353199188,6cyclictest2106625-21grep00:36:120
165353199188,6cyclictest2035321-21kthreadcore23:46:150
165353199187,7cyclictest1809270-21systemctl21:15:030
165353199187,7cyclictest1809270-21systemctl21:15:030
165353199187,7cyclictest1053-21snmpd23:26:280
165353199182,5cyclictest1809841-21aten2.4-expect21:16:100
1653531991815,2cyclictest1800505-21latency21:06:150
1653531991815,2cyclictest1710376-21gpgv19:55:000
1653531991811,6cyclictest0-21swapper/022:45:020
3240591170,2phc2sys0-21swapper/322:01:113
3240591170,2phc2sys0-21swapper/300:08:133
3240591170,2phc2sys0-21swapper/300:04:523
165353399172,6cyclictest0-21swapper/219:56:062
1653533991714,1cyclictest0-21swapper/222:25:012
1653533991714,1cyclictest0-21swapper/222:25:012
1653533991714,1cyclictest0-21swapper/221:41:092
1653533991714,1cyclictest0-21swapper/220:45:012
1653533991714,1cyclictest0-21swapper/200:21:142
165353299179,1cyclictest69250irq/121-eno122:26:091
165353299178,2cyclictest69250irq/121-eno122:01:001
165353299178,2cyclictest1157598rtkit-daemon20:18:381
165353299177,2cyclictest0-21swapper/121:32:281
1653532991714,2cyclictest2058861-21mailstats00:01:191
1653532991714,2cyclictest1972017-21sh23:05:021
1653532991714,2cyclictest1942321-21latency_hist22:45:011
1653532991714,2cyclictest1687111-21fschecks_time19:36:081
1653532991714,2cyclictest1653529-21cyclictest23:46:141
1653532991713,3cyclictest1784368-21fschecks_time20:56:091
165353299170,9cyclictest1674164-21latency_hist19:25:021
165353199179,5cyclictest759-1atopacctd19:41:090
165353199179,4cyclictest0-21swapper/023:43:140
165353199179,4cyclictest0-21swapper/021:53:560
165353199178,5cyclictest0-21swapper/000:11:060
165353199178,4cyclictest0-21swapper/021:26:130
165353199177,6cyclictest1988452-21irqstats23:16:130
165353199177,5cyclictest1848425-21kthreadcore21:41:100
165353199175,4cyclictest1307-21mta-sts-daemon22:20:250
165353199175,4cyclictest1307-21mta-sts-daemon22:20:250
1653531991714,2cyclictest759-1atopacctd20:57:290
1653531991714,2cyclictest759-1atopacctd20:06:280
1653531991714,2cyclictest1770653-21switchtime20:41:190
1653531991714,2cyclictest1753503-21aten_repower_en20:31:060
1653531991714,2cyclictest1744128-21kthreadcore20:21:140
1653531991714,2cyclictest1701427-21kthreadcore19:46:150
1653531991714,2cyclictest1686849-21cstates19:36:070
1653531991712,4cyclictest1718246-21irqrtprio20:01:120
1653531991712,1cyclictest191rcu_preempt20:16:180
3240591160,4phc2sys0-21swapper/319:41:053
3240591160,2phc2sys0-21swapper/323:29:183
3240591160,2phc2sys0-21swapper/322:09:283
3240591160,2phc2sys0-21swapper/300:28:563
1653533991614,1cyclictest0-21swapper/222:00:022
1653533991614,1cyclictest0-21swapper/221:20:022
1653533991613,1cyclictest0-21swapper/220:56:162
1653533991613,1cyclictest0-21swapper/220:50:032
1653533991613,1cyclictest0-21swapper/200:40:012
165353299168,1cyclictest69250irq/121-eno123:21:041
165353299166,2cyclictest69250irq/121-eno121:29:051
165353299165,3cyclictest2098526-21grep00:31:081
165353299164,4cyclictest1728667-21sshd20:08:151
1653532991613,2cyclictest1847556-21sed21:41:071
1653532991613,2cyclictest1810285-21fschecks_count21:16:121
1653532991613,2cyclictest1659659-21munin-node19:50:091
1653532991613,2cyclictest0-21swapper/119:56:091
165353299161,2cyclictest1742129-21idleruntime20:21:111
165353199168,4cyclictest0-21swapper/022:36:100
165353199168,4cyclictest0-21swapper/020:51:060
1653531991613,2cyclictest1943154-21cpu22:46:080
1653531991612,2cyclictest1765192-21latency_hist20:40:020
3240591151,3phc2sys0-21swapper/319:31:073
3240591150,3phc2sys0-21swapper/323:23:223
3240591150,2phc2sys0-21swapper/321:37:073
1653533991513,1cyclictest0-21swapper/223:50:032
1653533991513,1cyclictest0-21swapper/221:10:022
1653533991512,1cyclictest0-21swapper/223:21:202
1653533991512,1cyclictest0-21swapper/223:20:022
1653533991512,1cyclictest0-21swapper/223:11:182
1653533991512,1cyclictest0-21swapper/222:41:112
1653533991512,1cyclictest0-21swapper/222:40:022
1653533991512,1cyclictest0-21swapper/221:26:142
1653533991512,1cyclictest0-21swapper/221:25:002
1653533991512,1cyclictest0-21swapper/219:36:102
1653533991512,1cyclictest0-21swapper/200:01:122
1653533991511,2cyclictest0-21swapper/220:16:172
1653533991511,2cyclictest0-21swapper/200:06:132
1653533991511,1cyclictest0-21swapper/222:11:082
165353299151,6cyclictest1783364-21latency_hist20:55:021
165353299151,3cyclictest1777341-21munin-plugin-st20:50:011
1653532991513,1cyclictest759-1atopacctd00:21:061
1653532991512,2cyclictest838-21gmain19:45:011
1653532991512,2cyclictest2006984-21mailstats23:26:181
1653532991512,2cyclictest1734171-21mailstats20:11:191
1653532991512,2cyclictest1653529-21cyclictest23:56:141
1653532991511,3cyclictest1763001-21kthreadcore20:36:151
1653532991511,3cyclictest1754492-21irqcore20:31:111
1653532991511,3cyclictest1306-21mta-sts-daemon23:16:061
165353199157,5cyclictest1898080-21ssh22:15:130
165353199153,5cyclictest1681127-21head19:31:110
1653531991512,2cyclictest1677171-21kthreadcore19:26:160
3240591141,2phc2sys0-21swapper/320:45:403
3240591140,2phc2sys0-21swapper/321:54:463
3240591140,2phc2sys0-21swapper/300:34:413
3240591140,1phc2sys0-21swapper/323:53:443
3240591140,1phc2sys0-21swapper/323:48:283
3240591140,1phc2sys0-21swapper/322:13:133
1653533991412,1cyclictest0-21swapper/223:01:142
1653533991412,1cyclictest0-21swapper/220:15:012
1653533991412,1cyclictest0-21swapper/219:46:082
1653533991412,1cyclictest0-21swapper/219:10:022
1653533991411,1cyclictest0-21swapper/223:36:162
1653533991411,1cyclictest0-21swapper/222:57:392
1653533991411,1cyclictest0-21swapper/222:51:152
1653533991411,1cyclictest0-21swapper/221:36:072
1653533991411,1cyclictest0-21swapper/220:31:162
1653533991411,1cyclictest0-21swapper/220:05:012
1653533991411,1cyclictest0-21swapper/219:51:102
1653533991411,1cyclictest0-21swapper/200:31:102
1653533991411,1cyclictest0-21swapper/200:15:542
1653533991411,1cyclictest0-21swapper/200:10:352
1653533991410,2cyclictest0-21swapper/219:26:202
165353299146,3cyclictest1667934-21munin-plugin-st19:20:011
1653532991411,2cyclictest2069606-21cut00:11:121
1653532991411,2cyclictest1791140-21kthreadcore21:01:131
1653532991411,2cyclictest1769987-21kthreadcore20:41:151
1653532991411,2cyclictest1717377-21cpuspeed_turbos20:01:081
1653532991411,2cyclictest0-21swapper/120:30:021
1653532991411,2cyclictest0-21swapper/119:30:021
1653532991410,3cyclictest1680969-21sh19:31:101
3240591130,5phc2sys0-21swapper/319:11:063
3240591130,2phc2sys0-21swapper/323:32:533
3240591130,2phc2sys0-21swapper/321:17:033
3240591130,2phc2sys0-21swapper/321:02:233
3240591130,2phc2sys0-21swapper/319:24:183
3240591130,1phc2sys0-21swapper/323:04:433
3240491130,1ptp4l0-21swapper/322:35:013
165353399139,2cyclictest0-21swapper/221:51:152
165353399134,4cyclictest0-21swapper/222:01:052
165353399132,6cyclictest0-21swapper/222:26:062
165353399131,4cyclictest0-21swapper/220:26:062
1653533991311,1cyclictest0-21swapper/222:46:152
1653533991311,1cyclictest0-21swapper/222:31:132
1653533991311,1cyclictest0-21swapper/221:05:032
1653533991311,1cyclictest0-21swapper/219:19:252
1653533991311,1cyclictest0-21swapper/200:26:072
1653533991310,1cyclictest0-21swapper/223:26:132
1653533991310,1cyclictest0-21swapper/221:46:152
1653533991310,1cyclictest0-21swapper/221:11:202
1653533991310,1cyclictest0-21swapper/221:11:202
1653533991310,1cyclictest0-21swapper/220:36:102
1653533991310,1cyclictest0-21swapper/220:21:132
1653533991310,1cyclictest0-21swapper/220:06:132
1653533991310,1cyclictest0-21swapper/219:21:132
1653532991310,2cyclictest1700311-21kthreadcore19:46:141
3240591122,2phc2sys0-21swapper/321:31:333
3240591121,3phc2sys0-21swapper/322:38:103
3240591121,3phc2sys0-21swapper/319:51:063
3240591120,2phc2sys0-21swapper/320:30:373
3240591120,2phc2sys0-21swapper/320:25:313
165353399129,1cyclictest0-21swapper/221:31:122
165353399121,4cyclictest0-21swapper/219:31:072
1653533991210,1cyclictest0-21swapper/223:50:412
1653533991210,1cyclictest0-21swapper/219:41:092
165353399120,2cyclictest0-21swapper/223:41:062
3240591111,5phc2sys0-21swapper/319:56:063
3240591111,2phc2sys0-21swapper/322:50:013
3240591110,2phc2sys0-21swapper/323:40:263
3240591110,2phc2sys0-21swapper/323:19:093
3240591110,2phc2sys0-21swapper/322:42:553
3240591110,2phc2sys0-21swapper/321:13:133
3240591110,2phc2sys0-21swapper/321:13:133
3240591110,2phc2sys0-21swapper/320:13:543
3240591110,2phc2sys0-21swapper/320:01:183
3240591110,2phc2sys0-21swapper/300:35:583
3240591110,2phc2sys0-21swapper/300:21:033
3240591110,2phc2sys0-21swapper/300:15:263
3240591110,1phc2sys0-21swapper/320:59:223
3240591110,1phc2sys0-21swapper/320:23:443
3240591101,3phc2sys0-21swapper/319:50:013
3240591101,2phc2sys0-21swapper/323:11:093
3240591101,2phc2sys0-21swapper/321:27:333
3240591101,2phc2sys0-21swapper/319:26:223
3240591100,2phc2sys0-21swapper/323:37:343
3240591100,2phc2sys0-21swapper/323:05:123
3240591100,2phc2sys0-21swapper/321:59:563
3240591100,2phc2sys0-21swapper/320:55:023
3240591100,2phc2sys0-21swapper/320:35:373
3240591100,1phc2sys0-21swapper/321:45:533
324059192,3phc2sys0-21swapper/300:12:043
324059191,4phc2sys0-21swapper/320:06:063
324059191,2phc2sys0-21swapper/322:25:403
324059191,2phc2sys0-21swapper/319:35:043
324059190,2phc2sys0-21swapper/323:55:093
324059190,2phc2sys0-21swapper/322:56:063
324059190,2phc2sys0-21swapper/322:16:063
324059190,2phc2sys0-21swapper/321:06:083
324059190,2phc2sys0-21swapper/320:41:153
324059190,2phc2sys0-21swapper/320:16:073
324059190,1phc2sys0-21swapper/319:06:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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