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2026-11-15 - 04:03
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Sun Nov 15, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22493792670,2sleep30-21swapper/300:30:033
21945102270,2sleep00-21swapper/023:57:090
19555542270,0sleep11955553-21ssh21:42:411
20911122240,1sleep02091116-21cut23:01:010
1726251992214,3cyclictest2155474-21kthreadcore23:36:061
2248291210,3phc2sys0-21swapper/300:20:023
1726251992112,4cyclictest2222672-21latency_hist00:15:021
172625199207,2cyclictest491rcuog/219:20:411
1726251992013,6cyclictest24903-21JS08:47:301
1726251991916,2cyclictest1921326-21ssh21:25:031
1726251991916,2cyclictest1831238-21missed_timers20:21:081
1726251991915,3cyclictest2197161-21cpuspeed_turbos00:01:001
2248291181,7phc2sys0-21swapper/319:05:413
2248291181,2phc2sys0-21swapper/321:42:213
2248291180,2phc2sys0-21swapper/322:42:053
18247502180,2sleep20-21swapper/220:16:092
18247502180,2sleep20-21swapper/220:16:092
1726251991814,2cyclictest1777256-21munin-run19:45:021
1726251991810,3cyclictest2081317-21/usr/sbin/munin22:56:031
2248291170,3phc2sys0-21swapper/300:01:093
2248291170,2phc2sys0-21swapper/323:54:163
172625199179,7cyclictest24903-21JS08:47:301
1726251991714,2cyclictest2249710-21/usr/sbin/munin00:31:051
1726251991714,2cyclictest2078453-21mailstats22:51:081
1726251991714,2cyclictest1824492-21pmu-power20:16:071
1726251991714,2cyclictest1824492-21pmu-power20:16:071
1726251991714,2cyclictest1-21systemd23:25:021
1726251991713,3cyclictest24904-21JS08:47:301
1726251991713,3cyclictest1726249-21cyclictest22:37:511
1726251991711,2cyclictest2173246-21kthreadcore23:46:041
1726251991710,3cyclictest2067290-21kthreadcore22:46:031
2248291162,2phc2sys0-21swapper/323:01:053
2248291161,3phc2sys0-21swapper/319:45:423
2248291160,3phc2sys0-21swapper/323:24:013
2248291160,3phc2sys0-21swapper/323:10:543
2248291160,2phc2sys0-21swapper/300:12:373
1726252991613,1cyclictest0-21swapper/222:00:022
172625299160,7cyclictest0-21swapper/223:25:402
1726251991613,2cyclictest773-21dbus-daemon20:05:011
1726251991613,2cyclictest2229455-21grep00:16:111
1726251991613,2cyclictest1985058-21ps22:01:041
1726251991613,2cyclictest1726249-21cyclictest19:30:021
1726251991612,3cyclictest2011305-21cut22:16:011
1726251991612,3cyclictest1975299-21cpu21:56:001
1726251991612,3cyclictest1894663-21kworker/u16:1+nfsiod23:55:381
1726251991612,3cyclictest1879660-21phc2sys20:56:081
172625199161,13cyclictest1974295-21apt21:55:011
172625199161,13cyclictest1887553-21idleruntime-cro21:05:001
2479898150,5rtkit-daemon1894453-21diskmemload23:10:170
2248291156,1phc2sys0-21swapper/321:59:573
18797452150,2sleep20-21swapper/220:56:092
1726252991512,1cyclictest0-21swapper/223:56:052
1726252991512,1cyclictest0-21swapper/200:10:032
1726252991511,2cyclictest0-21swapper/223:35:002
172625299150,7cyclictest0-21swapper/221:35:432
172625199159,5cyclictest2005565-21tr22:11:041
172625199159,2cyclictest1994867-21kthreadcore22:06:031
172625199154,4cyclictest773-21dbus-daemon20:10:011
1726251991512,2cyclictest900-1atopacctd20:39:371
1726251991512,2cyclictest2019479-21aten_repower_po22:20:511
1726251991512,2cyclictest1936079-21kthreadcore21:31:051
1726251991512,2cyclictest1764370-21cut19:35:581
1726251991512,2cyclictest1726249-21cyclictest23:30:361
1726251991511,3cyclictest900-1atopacctd20:46:051
1726251991511,3cyclictest2262604-21kthreadcore00:36:031
1726251991511,3cyclictest2245192-21kthreadcore00:26:041
1726251991511,3cyclictest2211255-21pmu-power00:06:081
1726251991511,3cyclictest2162096-21gltestperf23:41:011
1726251991511,3cyclictest2137726-21kthreadcore23:26:021
1726251991511,3cyclictest2118289-21kthreadcore23:16:011
1726251991511,3cyclictest2111873-21kthreadcore23:11:051
1726251991511,3cyclictest2039231-21kthreadcore22:31:061
1726251991511,3cyclictest2033219-21kthreadcore22:26:051
1726251991511,3cyclictest1992394-21kworker/u16:0+nfsiod23:05:051
1726251991511,3cyclictest1960482-21kthreadcore21:46:041
1726251991511,3cyclictest1868514-21kthreadcore20:51:051
1726251991511,3cyclictest1857502-21kthreadcore20:41:061
1726251991511,3cyclictest1839417-21kworker/u16:2+nfsiod21:19:021
1726251991511,3cyclictest1835852-21kthreadcore20:26:041
1726251991511,3cyclictest1813236-21kernelversion20:11:031
1726251991511,3cyclictest1760250-21kthreadcore19:31:051
1726251991511,3cyclictest1737368-21kthreadcore19:16:021
2479898140,4rtkit-daemon1202-21snmpd21:14:280
2479898140,3rtkit-daemon2011224-21perl22:16:000
2248291141,3phc2sys0-21swapper/319:40:413
2248291141,2phc2sys0-21swapper/322:35:203
2248291140,4phc2sys0-21swapper/322:58:223
2248291140,2phc2sys0-21swapper/319:21:203
2248291140,2phc2sys0-21swapper/300:35:423
2248291140,1phc2sys0-21swapper/321:29:183
172625299141,7cyclictest0-21swapper/220:45:422
1726252991412,1cyclictest0-21swapper/221:50:032
1726252991412,1cyclictest0-21swapper/221:11:042
1726252991411,1cyclictest0-21swapper/222:39:092
1726252991411,1cyclictest0-21swapper/221:20:012
1726252991411,1cyclictest0-21swapper/219:31:052
1726252991411,1cyclictest0-21swapper/200:20:532
1726252991410,2cyclictest0-21swapper/223:19:452
172625299140,9cyclictest0-21swapper/221:40:422
172625299140,9cyclictest0-21swapper/221:10:012
172625299140,7cyclictest0-21swapper/222:05:412
172625299140,7cyclictest0-21swapper/219:20:412
172625299140,7cyclictest0-21swapper/200:35:412
172625299140,5cyclictest0-21swapper/222:30:052
1726251991411,2cyclictest2238214-21timerwakeupswit00:21:091
1726251991411,2cyclictest2093466-21kthreadcore23:01:041
1726251991411,2cyclictest1796777-21needreboot19:56:071
1726251991410,3cyclictest2182155-21kthreadcore23:51:041
1726251991410,3cyclictest2057934-21kthreadcore22:41:071
1726251991410,3cyclictest1944081-21kthreadcore21:36:061
1726251991410,3cyclictest1898247-21kthreadcore21:11:051
1726251991410,3cyclictest1840733-21irqrtprio20:31:011
1726251991410,3cyclictest1785125-21idleruntime19:51:021
1726251991410,3cyclictest1779015-21kthreadcore19:46:041
2479898130,4rtkit-daemon795-21mta-sts-daemon21:41:460
2479898130,4rtkit-daemon795-21mta-sts-daemon19:09:550
2479898130,4rtkit-daemon25113-21gsd-housekeepin22:13:520
2479898130,4rtkit-daemon24937-21gmain19:21:130
2479898130,3rtkit-daemon1903995-21ssh21:15:410
2248291134,2phc2sys0-21swapper/300:05:553
2248291133,2phc2sys0-21swapper/322:06:103
2248291131,5phc2sys0-21swapper/323:45:413
2248291130,5phc2sys0-21swapper/320:10:423
2248291130,3phc2sys0-21swapper/323:05:423
2248291130,2phc2sys0-21swapper/321:53:493
2248291130,2phc2sys0-21swapper/321:35:013
2248291130,2phc2sys0-21swapper/320:32:503
2248291130,2phc2sys0-21swapper/319:52:463
2248291130,2phc2sys0-21swapper/300:25:033
2248291130,1phc2sys0-21swapper/321:08:013
2248291130,1phc2sys0-21swapper/321:02:563
20429952131,3sleep00-21swapper/022:31:120
18482892130,1sleep01848291-21kthreadcore20:36:030
172625299139,2cyclictest0-21swapper/221:33:342
1726252991311,1cyclictest0-21swapper/220:51:012
1726252991311,1cyclictest0-21swapper/220:26:042
1726252991311,1cyclictest0-21swapper/220:06:052
1726252991311,1cyclictest0-21swapper/200:30:112
1726252991310,1cyclictest0-21swapper/223:01:052
1726252991310,1cyclictest0-21swapper/222:30:002
1726252991310,1cyclictest0-21swapper/220:41:062
1726252991310,1cyclictest0-21swapper/219:46:032
1726252991310,1cyclictest0-21swapper/200:26:032
172625299130,8cyclictest0-21swapper/222:15:012
172625299130,8cyclictest0-21swapper/219:15:022
172625199139,3cyclictest773-21dbus-daemon19:10:011
2479898120,5rtkit-daemon25117-21gsd-power23:44:130
2479898120,4rtkit-daemon795-21mta-sts-daemon21:54:010
2479898120,4rtkit-daemon25113-21gsd-housekeepin23:18:520
2479898120,4rtkit-daemon1202-21snmpd00:39:560
2479898120,3rtkit-daemon2203008-21ssh00:01:120
2479898120,3rtkit-daemon1-21systemd22:50:020
2248291124,2phc2sys0-21swapper/322:11:033
2248291123,4phc2sys0-21swapper/300:35:023
2248291122,2phc2sys0-21swapper/323:36:493
2248291121,2phc2sys0-21swapper/320:45:013
2248291120,5phc2sys0-21swapper/322:02:083
2248291120,5phc2sys0-21swapper/320:55:423
2248291120,2phc2sys0-21swapper/320:00:413
2248291120,2phc2sys0-21swapper/319:17:443
2248291120,1phc2sys0-21swapper/320:05:523
20739472120,6sleep02075459-21cut22:51:040
172625299129,1cyclictest0-21swapper/223:20:582
172625299129,1cyclictest0-21swapper/222:41:032
172625299129,1cyclictest0-21swapper/220:01:062
172625299128,2cyclictest0-21swapper/200:15:522
172625299127,2cyclictest0-21swapper/223:05:422
172625299121,3cyclictest0-21swapper/222:00:432
1726252991210,1cyclictest0-21swapper/223:50:022
1726252991210,1cyclictest0-21swapper/223:45:022
1726252991210,1cyclictest0-21swapper/223:00:022
1726252991210,1cyclictest0-21swapper/222:21:002
1726252991210,1cyclictest0-21swapper/220:11:032
1726252991210,1cyclictest0-21swapper/219:26:072
172625299120,9cyclictest0-21swapper/221:51:092
172625299120,6cyclictest0-21swapper/222:45:412
2479898110,7rtkit-daemon1928288-21ssh21:26:170
2479898110,5rtkit-daemon1733239-21munin-run19:15:010
2479898110,4rtkit-daemon1216-21lldpd00:19:570
2479898110,3rtkit-daemon771-21avahi-daemon20:47:310
2479898110,3rtkit-daemon2142820-21appstreamcli23:30:030
2479898110,3rtkit-daemon1894453-21diskmemload23:50:560
2479898110,2rtkit-daemon0-21swapper/023:28:530
22604822111,8sleep02260618-21900:35:020
2248291111,3phc2sys0-21swapper/323:26:023
2248291111,2phc2sys0-21swapper/323:17:093
2248291110,2phc2sys0-21swapper/323:40:433
2248291110,2phc2sys0-21swapper/322:20:413
2248291110,2phc2sys0-21swapper/320:22:173
2248291110,1phc2sys0-21swapper/322:46:543
20449842110,3sleep30-21swapper/322:34:313
20171392110,3sleep30-21swapper/322:16:483
172625299119,1cyclictest0-21swapper/223:52:322
172625299119,1cyclictest0-21swapper/221:25:042
172625299119,1cyclictest0-21swapper/200:14:022
172625299119,1cyclictest0-21swapper/200:01:062
172625299118,1cyclictest0-21swapper/223:39:132
172625299118,1cyclictest0-21swapper/222:51:052
172625299118,1cyclictest0-21swapper/222:15:152
172625299118,1cyclictest0-21swapper/220:22:092
172625299116,3cyclictest0-21swapper/220:35:422
172625299110,8cyclictest0-21swapper/221:01:072
172625299110,3cyclictest0-21swapper/221:20:402
2479898100,6rtkit-daemon795-21mta-sts-daemon19:54:130
2479898100,6rtkit-daemon2239080-21ssh00:22:380
2479898100,5rtkit-daemon2033970-21phc2sys-jitter22:26:070
2479898100,5rtkit-daemon1931325-21ssh21:30:590
2479898100,5rtkit-daemon1894453-21diskmemload23:08:390
2479898100,5rtkit-daemon1859120-21/usr/sbin/munin20:41:090
2479898100,3rtkit-daemon996-21gmain21:45:110
2479898100,3rtkit-daemon63313-21gmain19:29:020
2479898100,2rtkit-daemon0-21swapper/022:41:210
2479898100,2rtkit-daemon0-21swapper/019:58:430
2248291102,3phc2sys0-21swapper/321:11:053
2248291101,4phc2sys0-21swapper/320:25:423
2248291101,3phc2sys0-21swapper/321:20:393
2248291101,2phc2sys0-21swapper/323:30:593
2248291101,2phc2sys0-21swapper/322:28:073
2248291101,2phc2sys0-21swapper/321:36:043
2248291101,2phc2sys0-21swapper/321:16:033
2248291101,2phc2sys0-21swapper/320:35:593
2248291101,2phc2sys0-21swapper/320:16:083
2248291101,2phc2sys0-21swapper/320:16:083
2248291101,2phc2sys0-21swapper/319:56:003
2248291101,2phc2sys0-21swapper/319:36:003
2248291100,2phc2sys0-21swapper/322:50:313
2248291100,2phc2sys0-21swapper/320:45:053
2248291100,1phc2sys0-21swapper/320:50:263
2248291100,1phc2sys0-21swapper/319:13:273
172625299108,1cyclictest0-21swapper/223:11:342
172625299108,1cyclictest0-21swapper/219:51:152
172625299108,1cyclictest0-21swapper/219:42:052
172625299107,2cyclictest0-21swapper/219:16:032
172625299107,1cyclictest0-21swapper/219:35:592
172625299101,6cyclictest1839648-21chrt20:30:482
172625299101,6cyclictest1791414-21taskset19:55:532
17195992100,5sleep20-21swapper/219:05:412
247989890,5rtkit-daemon795-21mta-sts-daemon21:07:320
247989890,5rtkit-daemon2220550-21head00:11:100
247989890,4rtkit-daemon795-21mta-sts-daemon22:21:350
247989890,4rtkit-daemon795-21mta-sts-daemon21:22:030
247989890,4rtkit-daemon24892-21gnome-shell20:15:090
247989890,4rtkit-daemon24892-21gnome-shell20:15:090
247989890,4rtkit-daemon2246896-21sendmail_mailst00:26:070
247989890,4rtkit-daemon1988129-21kthreadcore22:01:060
247989890,4rtkit-daemon1770543-21apt-get19:40:410
247989890,4rtkit-daemon1-21systemd20:35:030
247989890,4rtkit-daemon1202-21snmpd19:15:290
247989890,2rtkit-daemon0-21swapper/020:20:150
247989890,2rtkit-daemon0-21swapper/020:08:580
224829192,2phc2sys0-21swapper/319:30:423
224829191,2phc2sys0-21swapper/319:26:023
224829190,2phc2sys0-21swapper/323:55:123
224829190,2phc2sys0-21swapper/321:45:103
2171290291,3sleep02171979-21kthreadcore23:46:030
2087870290,1sleep00-21swapper/022:56:210
1838472290,4sleep01838616-21cat20:26:100
247989880,4rtkit-daemon900-1atopacctd19:31:010
247989880,4rtkit-daemon811-21udisksd00:07:400
247989880,4rtkit-daemon795-21mta-sts-daemon19:45:240
247989880,4rtkit-daemon1769391-21mailstats19:36:050
247989880,4rtkit-daemon1733188-21munin-node20:56:430
247989880,4rtkit-daemon1733188-21munin-node20:10:430
247989880,4rtkit-daemon1216-21lldpd23:21:460
247989880,3rtkit-daemon2152287-21apt-get23:35:410
247989880,3rtkit-daemon1894453-21diskmemload21:36:220
247989880,3rtkit-daemon1798706-21diskstats20:00:590
2047362280,3sleep02048846-21kthreadcore22:36:050
1974694281,2sleep01974704-21ssh21:55:120
247989870,3rtkit-daemon24892-21gnome-shell20:51:090
247989870,2rtkit-daemon1894453-21diskmemload22:05:060
1880940271,2sleep01880653-21appstreamcli21:00:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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