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2026-07-30 - 15:31
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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 Jul 30, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
156603721010,2sleep30-21swapper/323:01:103
144205321010,2sleep30-21swapper/321:40:303
16628312710,1sleep11662830-21ssh00:08:261
1248408992715,7cyclictest1547312-21kthreadcore22:51:000
13966382260,2sleep30-21swapper/321:06:073
124840899267,13cyclictest0-21swapper/023:01:000
1248408992619,5cyclictest1412125-21idleruntime-cro21:20:010
1248408992517,4cyclictest191rcu_preempt00:30:490
1248408992515,9cyclictest1490310-21kthreadcore22:11:010
1248408992415,4cyclictest1157598rtkit-daemon22:47:570
1248408992414,6cyclictest1248406-21cyclictest22:00:550
1248408992411,8cyclictest0-21swapper/023:35:020
1248408992410,10cyclictest1497499-21kthreadcore22:16:010
1248409992320,2cyclictest1589578-21sendmail23:20:011
1248409992320,2cyclictest1500695-21grep22:20:011
1248409992312,6cyclictest0-21swapper/122:47:401
1248409992312,6cyclictest0-21swapper/100:26:391
124840899239,8cyclictest1663929-21ssh00:10:390
124840899239,8cyclictest1663929-21ssh00:10:390
124840899238,11cyclictest1508847-21cpu22:25:550
1248408992318,4cyclictest1263080-21apt-config19:20:020
1248408992318,4cyclictest1255430-21munin-plugin-st19:15:030
1248408992317,5cyclictest1648559-21wc00:00:010
1248408992316,3cyclictest1157598rtkit-daemon19:46:210
1248408992314,8cyclictest1442091-21/usr/sbin/munin21:40:580
1248408992311,9cyclictest759-1atopacctd21:35:020
1248408992310,12cyclictest0-21swapper/000:00:410
15731232220,2sleep20-21swapper/223:06:062
1248409992219,2cyclictest664-21dbus-daemon22:15:021
1248409992219,2cyclictest0-21swapper/122:25:011
124840899229,9cyclictest1586016-21kthreadcore23:15:590
124840899229,9cyclictest1412437-21taskset21:20:070
124840899229,7cyclictest0-21swapper/021:15:030
124840899229,12cyclictest0-21swapper/022:20:400
124840899229,11cyclictest0-21swapper/021:10:020
1248408992217,4cyclictest1292428-21kthreadcore19:41:020
1248408992217,4cyclictest1292428-21kthreadcore19:41:020
1248408992214,4cyclictest69250irq/121-eno123:36:010
1248408992213,8cyclictest1575399-21aten2.4-expect23:10:410
1248408992211,7cyclictest0-21swapper/021:46:010
1248408992210,8cyclictest1701370-21ssh00:35:580
1248408992210,8cyclictest1570656-21kthreadcore23:06:020
1248408992210,8cyclictest1523628-21aten2.4-expect22:35:470
1248408992210,8cyclictest0-21swapper/021:40:010
1248408992210,8cyclictest0-21swapper/021:25:570
1248409992118,2cyclictest1463737-21idleruntime-cro21:55:011
1248409992118,2cyclictest1-21systemd22:05:031
1248409992112,3cyclictest0-21swapper/123:40:491
124840899219,8cyclictest1685568-21ssh00:25:010
124840899219,8cyclictest1633946-21munin-run23:50:020
124840899219,8cyclictest1601991-21tr23:26:010
124840899218,9cyclictest1678163-21munin-run00:20:000
124840899218,9cyclictest1634567-21ssh23:50:550
124840899218,9cyclictest1522802-21http22:35:010
124840899217,10cyclictest1691980-21ssh00:27:220
124840899212,5cyclictest664-21dbus-daemon20:30:010
1248408992116,4cyclictest1385050-21cut21:00:010
1248408992115,5cyclictest70-21kcompactd020:20:010
1248408992115,5cyclictest1362356-21kthreadcore20:41:020
1248408992115,5cyclictest1356005-21kthreadcore20:36:020
1248408992115,5cyclictest1349935-21kthreadcore20:31:010
1248408992115,5cyclictest1308849-21kthreadcore19:56:020
1248408992115,5cyclictest1278422-21kthreadcore19:31:010
1248408992115,5cyclictest1274296-21needreboot19:26:020
124840899211,19cyclictest0-21swapper/019:50:510
1248408992111,6cyclictest0-21swapper/023:21:060
1248408992111,6cyclictest0-21swapper/022:56:050
1248408992110,7cyclictest0-21swapper/021:50:450
1248409992017,2cyclictest1486220-21/usr/sbin/munin22:10:031
1248409992017,2cyclictest1441592-21grep21:40:011
1248409992015,3cyclictest0-21swapper/120:20:011
1248409992010,3cyclictest1698301-21grep00:31:041
124840899208,8cyclictest1619585-21apt-get23:40:360
124840899208,8cyclictest1464920-21/usr/sbin/munin21:55:560
124840899208,7cyclictest0-21swapper/022:43:090
124840899208,7cyclictest0-21swapper/022:43:090
124840899206,7cyclictest1480468-21/usr/sbin/munin22:05:580
124840899204,4cyclictest664-21dbus-daemon20:25:010
124840899203,7cyclictest11574-21rtkit-daemon20:13:360
1248408992015,4cyclictest1657935-21kthreadcore00:06:040
1248408992014,5cyclictest1376032-21kthreadcore20:51:010
1248408992014,5cyclictest1315207-21kthreadcore20:01:010
1248408992014,5cyclictest1266255-21kthreadcore19:21:020
124840899201,3cyclictest1281694-21apt-get19:35:400
124840899201,3cyclictest1281694-21apt-get19:35:400
1248410991917,1cyclictest0-21swapper/219:17:482
124840999197,4cyclictest0-21swapper/121:20:491
124840999196,4cyclictest0-21swapper/123:25:451
1248409991916,2cyclictest1664113-21aten2.4-expect00:10:491
1248409991916,2cyclictest1664113-21aten2.4-expect00:10:491
1248409991915,3cyclictest1317167-21mailstats20:01:051
1248409991913,4cyclictest664-21dbus-daemon19:45:021
1248409991913,4cyclictest664-21dbus-daemon19:45:021
1248409991913,4cyclictest1532425-21kthreadcore22:41:021
1248409991913,4cyclictest1532425-21kthreadcore22:41:021
1248408991914,4cyclictest1388236-21kthreadcore21:01:010
1248408991914,4cyclictest1367878-21gltestperf20:45:580
1248408991914,4cyclictest1321792-21kthreadcore20:06:020
3240591180,2phc2sys0-21swapper/321:50:503
1248410991811,3cyclictest0-21swapper/220:15:392
124840999189,2cyclictest69250irq/121-eno123:24:311
124840999187,6cyclictest0-21swapper/100:15:481
1248409991815,2cyclictest1683591-21grep00:21:041
1248409991815,2cyclictest1521356-21grep22:31:071
1248409991815,2cyclictest1447607-21grep21:41:081
1248409991813,3cyclictest1407685-21kthreadcore21:16:001
1248409991810,2cyclictest0-21swapper/122:56:391
3240591170,2phc2sys0-21swapper/321:33:023
1248410991714,1cyclictest0-21swapper/222:26:002
1248410991714,1cyclictest0-21swapper/221:55:012
1248410991714,1cyclictest0-21swapper/221:45:172
1248410991714,1cyclictest0-21swapper/221:25:382
1248410991714,1cyclictest0-21swapper/200:00:012
124840999179,2cyclictest1034-21runrttasks23:47:121
1248409991714,2cyclictest1568314-21cpuspeed_turbos23:05:561
1248409991714,2cyclictest1467210-21kthreadcore21:56:001
1248409991714,2cyclictest1456514-21wc21:50:011
1248409991714,2cyclictest1257421-21cpuspeed_turbos19:15:581
1248409991714,2cyclictest0-21swapper/119:40:011
1248409991714,2cyclictest0-21swapper/119:40:011
1248409991713,3cyclictest1307369-21kthreadcore19:56:011
1248409991710,2cyclictest1157598rtkit-daemon21:33:411
3240591160,2phc2sys0-21swapper/322:59:593
3240591160,2phc2sys0-21swapper/319:50:513
1248410991614,1cyclictest0-21swapper/223:44:482
1248410991613,1cyclictest0-21swapper/223:30:012
1248410991613,1cyclictest0-21swapper/223:16:542
1248410991613,1cyclictest0-21swapper/219:26:062
1248410991612,2cyclictest0-21swapper/222:40:502
1248410991612,2cyclictest0-21swapper/222:40:502
124841099161,10cyclictest0-21swapper/219:45:382
124840999166,1cyclictest69250irq/121-eno120:28:461
124840999165,4cyclictest0-21swapper/119:25:401
1248409991614,1cyclictest1299789-21latency_hist19:50:021
1248409991613,2cyclictest1655969-21cron00:05:011
1248409991613,2cyclictest1382122-21kthreadcore20:56:011
1248409991613,2cyclictest1354308-21latency_hist20:35:011
1248409991612,3cyclictest759-1atopacctd20:41:021
1248409991612,2cyclictest1397499-21systemd21:10:031
1248409991612,2cyclictest0-21swapper/121:26:051
1248409991610,3cyclictest0-21swapper/122:30:021
124840899160,5cyclictest1-21systemd19:10:030
3240591150,2phc2sys0-21swapper/323:35:173
3240591150,2phc2sys0-21swapper/323:18:383
3240591150,2phc2sys0-21swapper/322:27:023
3240591150,2phc2sys0-21swapper/321:23:063
3240591150,2phc2sys0-21swapper/320:26:013
1248410991513,1cyclictest0-21swapper/221:20:032
1248410991513,1cyclictest0-21swapper/220:40:032
1248410991513,1cyclictest0-21swapper/200:05:032
1248410991512,1cyclictest0-21swapper/221:59:512
1248410991512,1cyclictest0-21swapper/220:10:012
1248410991512,1cyclictest0-21swapper/219:55:012
1248410991511,2cyclictest0-21swapper/223:48:402
1248410991511,2cyclictest0-21swapper/222:05:402
1248410991511,2cyclictest0-21swapper/219:44:592
1248410991511,2cyclictest0-21swapper/219:44:592
1248410991511,2cyclictest0-21swapper/219:21:012
124840999157,3cyclictest69250irq/121-eno123:01:001
124840999153,3cyclictest714-21gdbus22:36:071
124840999151,7cyclictest1305687-21latency_hist19:55:011
124840999151,4cyclictest1613625-21irqstats23:36:001
1248409991512,2cyclictest676-21mta-sts-daemon19:10:021
1248409991512,2cyclictest1578522-21kthreadcore23:11:021
1248409991512,2cyclictest1386146-21tail21:00:571
1248409991512,2cyclictest11574-21rtkit-daemon20:20:391
1248409991512,2cyclictest0-21swapper/121:11:071
1248409991511,3cyclictest664-21dbus-daemon19:35:021
1248409991511,3cyclictest1608127-21kthreadcore23:31:001
1248409991511,3cyclictest1549905-21kthreadcore22:51:021
1248409991511,3cyclictest1248406-21cyclictest19:21:001
1248409991510,2cyclictest1306-21mta-sts-daemon00:35:491
3240591149,2phc2sys0-21swapper/319:56:013
3240591143,2phc2sys0-21swapper/321:35:553
3240591141,2phc2sys0-21swapper/300:11:023
3240591141,2phc2sys0-21swapper/300:11:023
3240591140,2phc2sys0-21swapper/322:36:353
124841099141,7cyclictest0-21swapper/222:40:022
124841099141,6cyclictest0-21swapper/200:20:012
1248410991412,1cyclictest0-21swapper/221:25:022
1248410991412,1cyclictest0-21swapper/220:40:582
1248410991412,1cyclictest0-21swapper/220:21:002
1248410991411,2cyclictest0-21swapper/219:30:552
1248410991411,1cyclictest0-21swapper/223:30:552
1248410991411,1cyclictest0-21swapper/223:01:032
1248410991411,1cyclictest0-21swapper/222:51:012
1248410991411,1cyclictest0-21swapper/222:30:552
1248410991411,1cyclictest0-21swapper/222:21:022
1248410991411,1cyclictest0-21swapper/222:15:552
1248410991411,1cyclictest0-21swapper/221:40:152
1248410991411,1cyclictest0-21swapper/221:36:002
1248410991411,1cyclictest0-21swapper/221:01:002
1248410991411,1cyclictest0-21swapper/220:55:012
1248410991411,1cyclictest0-21swapper/220:31:012
1248410991411,1cyclictest0-21swapper/220:11:002
1248410991411,1cyclictest0-21swapper/220:00:592
1248410991411,1cyclictest0-21swapper/219:36:012
1248410991411,1cyclictest0-21swapper/219:36:012
1248410991411,1cyclictest0-21swapper/200:32:502
1248410991410,2cyclictest0-21swapper/222:04:382
1248410991410,1cyclictest0-21swapper/222:55:052
124840999141,4cyclictest1373180-21/usr/sbin/munin20:50:491
1248409991411,2cyclictest684-21systemd-logind20:15:021
1248409991411,2cyclictest1642587-21if_enp1s023:56:011
1248409991411,2cyclictest1372195-21switchtime20:46:061
1248409991411,2cyclictest1248406-21cyclictest19:10:571
1248409991410,3cyclictest759-1atopacctd20:06:021
1248409991410,3cyclictest1307-21mta-sts-daemon23:51:481
3240591134,2phc2sys0-21swapper/319:41:013
3240591134,2phc2sys0-21swapper/319:41:013
3240591130,6phc2sys0-21swapper/321:55:383
3240591130,3phc2sys0-21swapper/322:44:103
3240591130,3phc2sys0-21swapper/322:44:103
3240591130,2phc2sys0-21swapper/321:47:133
3240591130,2phc2sys0-21swapper/320:15:393
3240591130,2phc2sys0-21swapper/319:21:583
3240591130,1phc2sys0-21swapper/323:45:403
3240491130,1ptp4l0-21swapper/320:01:023
15078412131,2sleep30-21swapper/322:24:283
1248410991311,1cyclictest0-21swapper/223:50:392
1248410991311,1cyclictest0-21swapper/220:25:582
1248410991311,1cyclictest0-21swapper/200:05:592
1248410991310,2cyclictest0-21swapper/221:12:182
1248410991310,1cyclictest0-21swapper/223:36:062
1248410991310,1cyclictest0-21swapper/223:20:582
1248410991310,1cyclictest0-21swapper/223:10:592
1248410991310,1cyclictest0-21swapper/221:30:522
1248410991310,1cyclictest0-21swapper/221:06:022
1248410991310,1cyclictest0-21swapper/220:45:562
1248410991310,1cyclictest0-21swapper/219:55:592
1248410991310,1cyclictest0-21swapper/219:11:012
1248410991310,1cyclictest0-21swapper/200:36:012
1248410991310,1cyclictest0-21swapper/200:27:032
1248409991310,2cyclictest1354744-21aten_repower_en20:35:441
3240591122,2phc2sys0-21swapper/320:21:003
3240591120,2phc2sys0-21swapper/322:32:503
3240591120,2phc2sys0-21swapper/322:04:433
3240591120,1phc2sys0-21swapper/321:27:413
3240591120,1phc2sys0-21swapper/300:01:203
124841099129,1cyclictest0-21swapper/222:46:012
124841099129,1cyclictest0-21swapper/200:11:022
124841099129,1cyclictest0-21swapper/200:11:022
124841099127,3cyclictest1492588-21taskset22:12:552
124841099121,5cyclictest0-21swapper/219:10:022
1248410991210,1cyclictest0-21swapper/220:55:202
3240591114,2phc2sys0-21swapper/321:10:403
3240591112,2phc2sys0-21swapper/323:12:503
3240591111,2phc2sys0-21swapper/319:15:413
3240591110,5phc2sys0-21swapper/320:45:393
3240591110,2phc2sys0-21swapper/323:50:303
3240591110,2phc2sys0-21swapper/323:29:013
3240591110,2phc2sys0-21swapper/322:11:023
3240591110,2phc2sys0-21swapper/322:05:253
3240591110,2phc2sys0-21swapper/320:35:593
3240591110,1phc2sys0-21swapper/320:32:223
3240591110,1phc2sys0-21swapper/320:10:463
3240591110,1phc2sys0-21swapper/319:49:023
3240591110,1phc2sys0-21swapper/319:37:363
3240591110,1phc2sys0-21swapper/319:37:363
3240591110,1phc2sys0-21swapper/319:34:363
3240591110,1phc2sys0-21swapper/300:05:373
124841099118,1cyclictest0-21swapper/200:20:072
3240591103,3phc2sys0-21swapper/323:06:033
3240591102,2phc2sys0-21swapper/322:51:013
3240591102,2phc2sys0-21swapper/300:37:073
3240591102,2phc2sys0-21swapper/300:30:343
3240591101,2phc2sys0-21swapper/323:40:353
3240591101,2phc2sys0-21swapper/323:20:553
3240591101,2phc2sys0-21swapper/322:45:083
3240591101,2phc2sys0-21swapper/320:51:013
3240591101,2phc2sys0-21swapper/300:26:453
3240591100,2phc2sys0-21swapper/323:30:373
3240591100,2phc2sys0-21swapper/322:18:273
3240591100,2phc2sys0-21swapper/321:17:353
3240591100,2phc2sys0-21swapper/320:41:083
3240591100,2phc2sys0-21swapper/300:20:123
3240591100,1phc2sys0-21swapper/320:55:223
324059191,4phc2sys0-21swapper/320:05:393
324059191,1phc2sys0-21swapper/323:55:433
324059190,2phc2sys0-21swapper/321:00:553
324059190,2phc2sys0-21swapper/319:25:583
324059190,2phc2sys0-21swapper/319:06:073
324059190,2phc2sys0-21swapper/300:15:593
324059180,2phc2sys0-21swapper/319:10:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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