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2025-11-20 - 14:56
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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 Thu Nov 20, 2025 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172110721110,1sleep00-21swapper/021:10:370
1611437992724,2cyclictest1834024-21munin-run22:20:000
161144299236,9cyclictest1635-21dbus-daemon21:05:011
1611442992312,5cyclictest0-21swapper/123:05:271
1611437992314,4cyclictest1656183-21/usr/sbin/munin20:20:400
1611444992218,2cyclictest0-21swapper/219:40:002
1611437992219,2cyclictest1680488-21grep20:40:010
1611437992215,6cyclictest1803881-21cron22:00:000
161144499212,7cyclictest0-21swapper/223:30:012
161143799218,7cyclictest0-21swapper/022:05:270
1611437992110,6cyclictest0-21swapper/021:40:280
17152762200,1sleep01715279-21cut21:05:360
1611444992017,1cyclictest0-21swapper/200:25:012
161144299208,5cyclictest1635-21dbus-daemon23:40:011
1611442992017,2cyclictest1629-21avahi-daemon23:20:001
1611442992013,3cyclictest2005257-21kthreadcore00:20:341
1611442992012,3cyclictest0-21swapper/121:00:001
1611437992017,2cyclictest1996496-21cut00:15:010
1611437992017,2cyclictest1635-21dbus-daemon21:50:010
1611437992014,5cyclictest1629-21avahi-daemon23:50:000
1611444991916,1cyclictest0-21swapper/222:00:002
1611442991911,3cyclictest0-21swapper/120:20:001
1611437991916,2cyclictest260-21systemd-journal20:00:020
1611437991911,7cyclictest1789197-21kthreadcore21:50:360
302487291181,3phc2sys0-21swapper/322:40:313
302487291180,2phc2sys0-21swapper/322:59:223
161144499181,7cyclictest0-21swapper/223:55:282
1611444991816,1cyclictest0-21swapper/221:05:342
1611444991815,1cyclictest0-21swapper/222:55:372
1611444991815,1cyclictest0-21swapper/221:10:392
1611442991815,2cyclictest1625214-21sh19:55:021
1611442991812,5cyclictest1662291-21acpi20:25:281
161143799189,5cyclictest1966075-21kthreadcore23:50:390
161143799189,5cyclictest1752881-21cstates21:30:290
161143799189,5cyclictest0-21swapper/000:00:360
1611437991815,2cyclictest1668547-21wc20:30:020
1611437991815,2cyclictest1661-21polkitd23:10:010
1611437991814,2cyclictest1769446-21systemd-run21:40:010
302487291170,2phc2sys0-21swapper/322:21:593
1611444991715,1cyclictest0-21swapper/223:55:022
1611444991714,1cyclictest0-21swapper/223:50:002
1611444991714,1cyclictest0-21swapper/221:40:012
1611444991714,1cyclictest0-21swapper/221:00:002
1611444991714,1cyclictest0-21swapper/220:05:002
1611444991713,2cyclictest0-21swapper/200:15:402
161144299178,4cyclictest0-21swapper/121:30:011
1611442991714,2cyclictest1786851-21cut21:50:021
1611442991714,2cyclictest1717145-21diskmemload22:05:011
1611442991714,2cyclictest1635-21dbus-daemon21:35:011
1611442991714,2cyclictest1-21systemd19:15:011
1611442991714,2cyclictest1-21systemd19:15:011
1611442991713,3cyclictest1871029-21kthreadcore22:45:351
1611442991713,3cyclictest1820662-21apt-key22:10:011
1611442991713,3cyclictest1634687-21kthreadcore20:00:391
161143799179,6cyclictest1635-21dbus-daemon00:20:010
1611437991715,1cyclictest1736657-21kthreadcore21:20:330
1611437991714,2cyclictest1911724-21gpgconf23:15:000
1611437991714,2cyclictest1711149-21sh21:05:000
1611437991714,2cyclictest1699731-21head20:55:300
1611437991714,2cyclictest1698702-21cat20:55:000
1611437991714,2cyclictest1674375-21idleruntime-cro20:35:000
835298160,2rtkit-daemon0-21swapper/120:43:581
302487291160,3phc2sys0-21swapper/322:05:323
302487291160,2phc2sys0-21swapper/322:36:383
302487291160,2phc2sys0-21swapper/321:12:103
302487291160,2phc2sys0-21swapper/300:12:043
1611444991613,1cyclictest0-21swapper/222:05:352
1611444991613,1cyclictest0-21swapper/219:53:402
1611444991613,1cyclictest0-21swapper/200:00:242
1611444991612,2cyclictest0-21swapper/223:40:012
1611444991612,1cyclictest0-21swapper/219:45:012
1611444991611,3cyclictest1675503-21taskset20:35:332
1611444991611,1cyclictest0-21swapper/221:03:192
1611442991613,2cyclictest2031528-21latency_hist00:40:011
1611442991613,2cyclictest1761855-21gltestperf21:35:321
1611442991613,2cyclictest1692193-21grep20:45:411
1611442991613,2cyclictest1656484-21cpuspeed_turbos20:20:321
1611442991613,2cyclictest1635-21dbus-daemon19:20:011
1611442991613,2cyclictest0-21swapper/123:45:401
1611442991612,3cyclictest1662085-21kworker/u16:1+nfsiod21:21:501
1611442991612,1cyclictest1846603-21ssh22:25:381
161143799169,2cyclictest0-21swapper/021:15:360
161143799167,5cyclictest1808830-21kthreadcore22:00:380
161143799166,6cyclictest1940775-21cstates23:35:290
1611437991614,1cyclictest1612821-21/usr/sbin/munin19:15:020
1611437991614,1cyclictest1612821-21/usr/sbin/munin19:15:020
1611437991613,2cyclictest1985509-21kthreadcore00:05:370
1611437991613,2cyclictest1925852-21latency_hist23:25:010
1611437991613,2cyclictest1891395-21fschecks_time23:00:320
1611437991613,2cyclictest1635-21dbus-daemon20:15:020
1611437991613,2cyclictest1615716-21perf19:25:000
1611437991613,2cyclictest1615716-21perf19:25:000
1611437991612,2cyclictest1611567-21sh19:10:020
161143799160,8cyclictest0-21swapper/022:10:250
302487291150,2phc2sys0-21swapper/323:12:533
302487291150,2phc2sys0-21swapper/322:27:513
302487291150,2phc2sys0-21swapper/319:41:333
302487291150,2phc2sys0-21swapper/300:03:583
161144499153,9cyclictest1904205-21chrt23:09:222
1611444991513,1cyclictest0-21swapper/221:45:002
1611444991512,2cyclictest0-21swapper/221:25:382
1611444991512,1cyclictest0-21swapper/222:50:352
1611444991512,1cyclictest0-21swapper/222:35:012
1611444991512,1cyclictest0-21swapper/222:25:392
1611444991512,1cyclictest0-21swapper/222:00:392
1611444991512,1cyclictest0-21swapper/221:50:312
1611444991512,1cyclictest0-21swapper/221:30:302
1611444991512,1cyclictest0-21swapper/221:20:362
1611444991512,1cyclictest0-21swapper/200:15:012
1611442991512,2cyclictest1933328-21/usr/sbin/munin23:30:371
1611442991512,2cyclictest1717964-21aten_repower_vo21:10:311
1611442991512,2cyclictest1642976-21mailstats20:05:391
1611442991512,2cyclictest1635-21dbus-daemon22:40:001
1611442991512,2cyclictest1635-21dbus-daemon21:45:011
1611442991512,2cyclictest1593321-21kworker/u16:2-events_unbound20:00:021
1611442991512,2cyclictest0-21swapper/123:55:001
1611442991511,3cyclictest1715642-21kthreadcore21:05:361
1611442991511,2cyclictest0-21swapper/123:25:011
1611442991510,4cyclictest1835087-21tune2fs22:20:311
161143799158,6cyclictest1971199-21kthreadcore23:55:350
161143799157,4cyclictest0-21swapper/022:55:310
161143799156,4cyclictest0-21swapper/022:25:010
161143799156,2cyclictest0-21swapper/000:35:310
161143799154,3cyclictest1932779-21sshd23:29:370
1611437991513,1cyclictest1869261-21latency_hist22:45:000
1611437991512,2cyclictest1939992-21cut23:35:010
1611437991512,2cyclictest1662085-21kworker/u16:1+nfsiod22:32:310
1611437991512,2cyclictest1617762-21latency_hist19:40:010
1611437991512,2cyclictest1398-17auditd21:28:170
1611437991511,3cyclictest1917825-21kworker/u16:0+nfsiod00:34:450
1611437991511,3cyclictest1917825-21kworker/u16:0+nfsiod00:34:450
1611437991511,3cyclictest1777168-21kworker/u16:0+nfsiod22:25:570
302487291141,6phc2sys0-21swapper/321:40:273
302487291141,4phc2sys0-21swapper/323:15:353
302487291140,2phc2sys0-21swapper/323:04:273
302487291140,2phc2sys0-21swapper/321:35:513
1611444991412,1cyclictest0-21swapper/223:30:372
1611444991412,1cyclictest0-21swapper/222:40:012
1611444991412,1cyclictest0-21swapper/220:30:022
1611444991412,1cyclictest0-21swapper/219:15:022
1611444991412,1cyclictest0-21swapper/219:15:022
1611444991411,1cyclictest0-21swapper/223:40:362
1611444991411,1cyclictest0-21swapper/223:20:342
1611444991411,1cyclictest0-21swapper/223:20:012
1611444991411,1cyclictest0-21swapper/222:20:342
1611444991411,1cyclictest0-21swapper/222:20:012
1611444991411,1cyclictest0-21swapper/221:45:332
1611444991411,1cyclictest0-21swapper/220:50:372
1611444991411,1cyclictest0-21swapper/220:45:292
1611444991411,1cyclictest0-21swapper/220:10:382
1611444991411,1cyclictest0-21swapper/220:07:262
1611444991411,1cyclictest0-21swapper/219:26:272
1611444991411,1cyclictest0-21swapper/219:15:042
1611444991410,2cyclictest0-21swapper/223:02:082
1611444991410,2cyclictest0-21swapper/221:15:352
1611444991410,2cyclictest0-21swapper/220:20:432
161144299146,4cyclictest1674906-21aten2.4-expect20:35:301
161144299142,7cyclictest1729796-21tr21:15:351
1611442991412,1cyclictest8351-21rtkit-daemon22:19:511
1611442991411,2cyclictest1983401-21gltestperf00:05:331
1611442991411,2cyclictest1979206-21kthreadcore00:00:361
1611442991411,2cyclictest1971293-21kthreadcore23:55:361
1611442991411,2cyclictest1907667-21kthreadcore23:10:361
1611442991411,2cyclictest1821681-21gltestperf22:10:291
1611442991411,2cyclictest1796028-21cpuspeed21:55:301
1611442991411,2cyclictest1644208-21aten2.4-expect20:10:321
1611442991411,2cyclictest1611566-21cut19:10:021
1611442991411,2cyclictest1611429-21cyclictest21:50:311
1611442991411,2cyclictest0-21swapper/123:25:431
1611442991411,2cyclictest0-21swapper/119:35:001
1611442991410,3cyclictest1904666-21kworker/u16:2+nfsiod00:16:481
1611442991410,3cyclictest1888481-21missed_timers22:55:391
1611442991410,3cyclictest1695285-21kthreadcore20:50:381
1611442991410,2cyclictest0-21swapper/123:45:021
161144299140,9cyclictest8734-21sendmail-mta22:30:221
161143799145,5cyclictest0-21swapper/019:45:500
161143799144,4cyclictest1655689-21sshd20:18:270
1611437991412,1cyclictest1611429-21cyclictest19:30:020
1611437991411,2cyclictest2013672-21kthreadcore00:25:360
1611437991411,2cyclictest1948380-21tr23:40:310
1611437991411,2cyclictest1881441-21missed_timers22:50:360
1611437991411,2cyclictest1652-1atopacctd19:15:040
1611437991411,2cyclictest1639017-21irqcore20:05:330
1611437991411,2cyclictest1621989-21kthreadcore19:53:280
1611437991410,2cyclictest0-21swapper/020:45:010
161143799140,2cyclictest1862216-21ls22:40:000
302487291131,2phc2sys0-21swapper/322:15:423
302487291130,3phc2sys0-21swapper/322:10:253
302487291130,2phc2sys0-21swapper/323:33:343
302487291130,1phc2sys0-21swapper/323:39:313
161144499131,3cyclictest0-21swapper/200:05:292
1611444991310,1cyclictest0-21swapper/222:45:362
1611444991310,1cyclictest0-21swapper/222:10:332
1611444991310,1cyclictest0-21swapper/220:15:332
1611444991310,1cyclictest0-21swapper/219:55:322
1611444991310,1cyclictest0-21swapper/219:25:002
1611444991310,1cyclictest0-21swapper/219:25:002
1611444991310,1cyclictest0-21swapper/200:35:422
1611444991310,1cyclictest0-21swapper/200:30:392
1611444991310,1cyclictest0-21swapper/200:30:392
1611444991310,1cyclictest0-21swapper/200:25:372
161144299137,5cyclictest1917825-21kworker/u16:0-rpciod00:31:291
161144299137,5cyclictest1917825-21kworker/u16:0-rpciod00:31:291
161144299134,4cyclictest0-21swapper/123:00:371
1611442991311,1cyclictest1879514-21kthreadcore22:50:351
1611442991310,2cyclictest2013991-21kthreadcore00:25:361
1611442991310,2cyclictest1991383-21kthreadcore00:10:351
1611442991310,2cyclictest1673568-21processes20:30:421
1611442991310,2cyclictest1619195-21systemd-run19:50:011
161143799134,4cyclictest1631898-21/usr/sbin/munin20:00:320
1611437991310,2cyclictest2004448-21fschecks_count00:20:310
1611437991310,2cyclictest1913750-21kthreadcore23:15:350
1611437991310,2cyclictest1870322-21fschecks_time22:45:320
1611437991310,2cyclictest1690561-21kthreadcore20:45:350
302487291123,2phc2sys0-21swapper/321:15:313
302487291122,2phc2sys0-21swapper/319:21:133
302487291122,2phc2sys0-21swapper/319:21:133
302487291120,3phc2sys0-21swapper/323:55:473
302487291120,3phc2sys0-21swapper/323:20:263
302487291120,2phc2sys0-21swapper/323:50:213
302487291120,2phc2sys0-21swapper/320:21:243
302487291120,2phc2sys0-21swapper/319:36:363
18977992121,7sleep30-21swapper/323:05:273
161144499129,1cyclictest0-21swapper/223:10:362
161144499129,1cyclictest0-21swapper/222:40:322
161144299129,2cyclictest1863997-21kthreadcore22:40:381
161144299129,2cyclictest1617751-21cron19:40:001
161144299125,5cyclictest1635-21dbus-daemon19:25:011
161144299125,5cyclictest1635-21dbus-daemon19:25:011
161144299123,7cyclictest1-21systemd19:30:011
161143799120,3cyclictest0-21swapper/019:44:450
302487291111,3phc2sys0-21swapper/300:20:383
302487291110,3phc2sys0-21swapper/319:20:013
302487291110,3phc2sys0-21swapper/300:30:323
302487291110,3phc2sys0-21swapper/300:30:323
302487291110,2phc2sys0-21swapper/319:55:443
302487291110,2phc2sys0-21swapper/319:52:153
161144499119,1cyclictest0-21swapper/220:40:402
161144499119,1cyclictest0-21swapper/220:30:322
161144499119,1cyclictest0-21swapper/219:47:432
161144499119,1cyclictest0-21swapper/219:10:022
161144499118,1cyclictest0-21swapper/219:31:202
161144299111,3cyclictest1618470-21latency_hist19:45:011
302487291101,4phc2sys0-21swapper/321:50:293
302487291101,2phc2sys0-21swapper/322:53:093
302487291100,3phc2sys0-21swapper/322:02:563
302487291100,3phc2sys0-21swapper/321:31:103
302487291100,3phc2sys0-21swapper/321:26:573
302487291100,3phc2sys0-21swapper/321:00:323
302487291100,3phc2sys0-21swapper/320:10:303
302487291100,2phc2sys0-21swapper/323:45:403
302487291100,2phc2sys0-21swapper/322:30:133
302487291100,2phc2sys0-21swapper/321:55:343
302487291100,2phc2sys0-21swapper/321:45:533
302487291100,2phc2sys0-21swapper/320:35:363
302487291100,2phc2sys0-21swapper/300:18:573
302487291100,2phc2sys0-21swapper/300:06:443
161143799109,1cyclictest1106-21hwrng19:30:180
30248729191,3phc2sys0-21swapper/319:05:383
30248729191,2phc2sys0-21swapper/321:05:293
30248729191,2phc2sys0-21swapper/320:50:423
30248729191,2phc2sys0-21swapper/320:30:343
30248729191,2phc2sys0-21swapper/300:35:413
30248729190,6phc2sys1616885-21chrt19:32:423
30248729190,4phc2sys0-21swapper/320:00:523
30248729190,2phc2sys0-21swapper/323:40:113
30248729190,2phc2sys0-21swapper/323:25:403
30248729190,2phc2sys0-21swapper/322:45:203
30248729190,2phc2sys0-21swapper/321:20:083
30248729190,2phc2sys0-21swapper/320:55:313
30248729190,2phc2sys0-21swapper/320:45:303
30248729190,2phc2sys0-21swapper/320:40:133
30248729190,2phc2sys0-21swapper/320:28:133
30248729190,2phc2sys0-21swapper/319:27:113
30248729190,2phc2sys0-21swapper/319:10:063
30248729190,2phc2sys0-21swapper/319:10:063
30248729190,2phc2sys0-21swapper/300:25:393
30248729180,2phc2sys0-21swapper/320:15:273
30248729180,2phc2sys0-21swapper/320:05:253
30248729180,2phc2sys0-21swapper/319:45:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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