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2026-01-01 - 11:48
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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 Jan 01, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130307921520,2sleep30-21swapper/319:28:253
16364742410,1sleep10-21swapper/123:08:251
13424412380,4sleep0191rcu_preempt20:03:200
15835732290,2sleep11583577-21kthreadcore22:38:191
1277278992825,2cyclictest1730314-21perf00:00:010
17384112260,1sleep11738412-21sh00:03:401
1277279992516,2cyclictest1352324-21apt-get20:10:021
1277279992512,3cyclictest1548544-21kthreadcore22:18:201
1277278992415,5cyclictest1572821-21kthreadcore22:33:190
1277280992320,1cyclictest0-21swapper/220:10:002
1277278992312,6cyclictest0-21swapper/000:05:020
1277280992219,1cyclictest0-21swapper/222:05:012
1277278992213,5cyclictest1427896-21cstates21:13:140
1277279992118,2cyclictest1290-21dbus-daemon23:20:011
1277278992111,5cyclictest1443204-21systemd21:20:010
2649091200,2phc2sys0-21swapper/300:12:413
1277280992018,1cyclictest0-21swapper/221:10:022
1277280992017,1cyclictest0-21swapper/222:00:012
127727999208,6cyclictest1726545-21kthreadcore23:58:181
1277279992017,2cyclictest1291568-21sendmail19:20:001
1277279992014,4cyclictest0-21swapper/100:25:011
127727899209,6cyclictest0-21swapper/023:53:200
127727899209,6cyclictest0-21swapper/019:40:010
127727899202,12cyclictest1328683-21apt-get19:53:100
1277278992012,5cyclictest1535641-21cpuspeed_turbos22:13:150
127727899201,15cyclictest0-21swapper/021:41:520
1277280991916,1cyclictest0-21swapper/223:50:002
1277280991916,1cyclictest0-21swapper/223:05:022
1277279991916,2cyclictest257-21systemd-journal23:40:011
1277279991916,2cyclictest1604679-21latency_hist22:50:001
1277279991916,2cyclictest1604679-21latency_hist22:50:001
1277279991916,2cyclictest1288-1atopacctd21:30:011
1277279991912,3cyclictest1792069-21kthreadcore00:38:201
1277279991910,4cyclictest0-21swapper/122:30:011
127727999190,1cyclictest0-21swapper/123:52:121
1277278991916,2cyclictest1675169-21mailstats23:28:240
1277278991916,2cyclictest1283706-21open_files19:15:010
1277278991916,2cyclictest1277276-21cyclictest23:05:000
1277278991913,5cyclictest1692712-21missed_timers23:38:200
1277278991913,3cyclictest1277276-21cyclictest21:38:350
2649091180,2phc2sys0-21swapper/323:52:253
2649091180,2phc2sys0-21swapper/322:53:173
2649091180,2phc2sys0-21swapper/322:31:133
1277280991815,1cyclictest0-21swapper/219:50:002
127727999188,4cyclictest0-21swapper/121:53:101
1277279991815,2cyclictest1326-21systemd-logind19:25:011
1277279991815,2cyclictest1277276-21cyclictest20:13:261
1277279991813,4cyclictest1-21systemd21:39:551
127727899188,5cyclictest0-21swapper/023:23:200
1277278991815,2cyclictest1326-21systemd-logind20:30:010
1277278991811,2cyclictest1504790-21sort21:53:220
127727899181,12cyclictest0-21swapper/022:24:260
127727899181,12cyclictest0-21swapper/020:13:220
2649091171,7phc2sys0-21swapper/321:48:123
2649091170,4phc2sys0-21swapper/322:27:243
2649091170,3phc2sys0-21swapper/321:55:413
2649091170,2phc2sys0-21swapper/321:39:353
2649091170,2phc2sys0-21swapper/320:13:143
14484672170,2sleep20-21swapper/221:23:212
1277280991714,1cyclictest0-21swapper/222:23:212
1277280991714,1cyclictest0-21swapper/220:30:022
1277280991714,1cyclictest0-21swapper/220:25:012
1277280991714,1cyclictest0-21swapper/200:28:242
127727999174,3cyclictest1515037-21ls22:00:011
1277279991714,2cyclictest1706320-21fschecks_count23:48:151
1277279991714,2cyclictest1290-21dbus-daemon19:50:001
1277279991714,2cyclictest1286-21avahi-daemon22:10:011
1277279991714,2cyclictest1283338-21systemctl19:15:001
1277279991713,3cyclictest1538214-21kthreadcore22:13:211
1277279991712,2cyclictest1277276-21cyclictest00:28:131
1277279991711,2cyclictest1593491-21kthreadcore22:43:211
127727899178,5cyclictest0-21swapper/021:48:120
127727899178,4cyclictest0-21swapper/000:20:020
127727899177,5cyclictest0-21swapper/022:58:170
127727899177,5cyclictest0-21swapper/022:28:110
127727899176,6cyclictest0-21swapper/023:08:170
1277278991714,2cyclictest35255-21packagekitd21:35:010
1277278991714,2cyclictest1706089-21cstates23:48:130
1277278991714,2cyclictest1604618-21cut22:50:000
1277278991714,2cyclictest1604618-21cut22:50:000
1277278991714,2cyclictest1382872-21cut20:35:010
1277278991714,2cyclictest1288-1atopacctd23:43:220
1277278991711,5cyclictest1419198-21kworker/u16:0-rpciod22:03:210
2902298160,12rtkit-daemon2018-21lldpd20:18:281
2649091161,2phc2sys0-21swapper/321:52:173
2649091160,2phc2sys0-21swapper/323:56:333
2649091160,2phc2sys0-21swapper/323:09:243
2649091160,2phc2sys0-21swapper/322:24:423
1277280991614,1cyclictest0-21swapper/221:28:192
1277280991613,1cyclictest0-21swapper/223:53:222
1277280991613,1cyclictest0-21swapper/223:45:002
1277280991613,1cyclictest0-21swapper/222:40:012
1277280991613,1cyclictest0-21swapper/222:13:162
1277280991613,1cyclictest0-21swapper/221:55:012
1277280991613,1cyclictest0-21swapper/221:18:252
1277280991613,1cyclictest0-21swapper/221:00:012
1277280991613,1cyclictest0-21swapper/220:43:212
1277280991613,1cyclictest0-21swapper/220:35:002
1277280991613,1cyclictest0-21swapper/219:31:342
1277280991613,1cyclictest0-21swapper/200:35:012
1277280991612,2cyclictest0-21swapper/223:21:122
1277279991614,1cyclictest1277276-21cyclictest23:05:011
1277279991613,2cyclictest1748432-21kthreadcore00:13:171
1277279991613,2cyclictest1667758-21cut23:25:021
1277279991613,2cyclictest1326-21systemd-logind21:00:021
1277279991613,2cyclictest0-21swapper/121:35:001
1277279991613,2cyclictest0-21swapper/120:00:001
1277279991612,3cyclictest1288-1atopacctd19:33:191
127727899168,4cyclictest0-21swapper/022:55:010
127727899167,8cyclictest0-21swapper/023:13:270
127727899166,5cyclictest0-21swapper/021:20:020
127727899166,4cyclictest0-21swapper/000:33:120
127727899165,4cyclictest1741394-21sshd00:07:400
127727899162,10cyclictest0-21swapper/000:12:570
1277278991613,2cyclictest1455076-21gltestperf21:28:130
1277278991613,2cyclictest1395114-21munin-plugin-st20:45:020
1277278991613,2cyclictest1328068-21apt-key19:50:000
1277278991613,2cyclictest1321914-21systemd-run19:45:010
1277278991613,2cyclictest1290-21dbus-daemon20:25:010
1277278991613,2cyclictest0-21swapper/019:25:000
1277278991612,3cyclictest1327-21in:imuxsock21:10:010
127727899161,1cyclictest0-21swapper/022:38:010
2902298150,2rtkit-daemon1696070-21ssh23:42:001
2649091150,2phc2sys0-21swapper/300:10:003
2649091150,1phc2sys0-21swapper/323:33:013
127728099151,6cyclictest0-21swapper/222:48:132
127728099151,6cyclictest0-21swapper/222:48:132
1277280991513,1cyclictest0-21swapper/223:15:012
1277280991512,1cyclictest0-21swapper/223:18:202
1277280991512,1cyclictest0-21swapper/222:33:262
1277280991512,1cyclictest0-21swapper/222:20:002
1277280991512,1cyclictest0-21swapper/222:08:192
1277280991512,1cyclictest0-21swapper/221:48:142
1277280991512,1cyclictest0-21swapper/221:38:152
1277280991512,1cyclictest0-21swapper/221:13:252
1277280991512,1cyclictest0-21swapper/220:40:002
1277280991512,1cyclictest0-21swapper/219:38:242
1277280991512,1cyclictest0-21swapper/219:20:012
1277280991512,1cyclictest0-21swapper/200:18:212
1277280991512,1cyclictest0-21swapper/200:13:162
1277280991512,1cyclictest0-21swapper/200:03:252
1277280991511,2cyclictest1764058-21taskset00:23:162
127727999159,2cyclictest134050irq/121-eno121:23:201
127727999157,4cyclictest0-21swapper/122:03:191
127727999157,3cyclictest0-21swapper/121:15:011
127727999156,4cyclictest1607120-21aten_repower_fr22:53:121
127727999153,8cyclictest1328774-21aten2.4-expect19:53:111
127727999151,7cyclictest1303914-21munin-run19:30:021
1277279991512,2cyclictest1783958-21kthreadcore00:33:201
1277279991512,2cyclictest1684133-21switchtime23:33:261
1277279991512,2cyclictest1647024-21kthreadcore23:13:361
1277279991512,2cyclictest1616584-21fschecks_time22:58:151
1277279991512,2cyclictest1551332-21runrttasks22:20:191
1277279991512,2cyclictest1486532-21processes21:43:231
1277279991512,2cyclictest1437636-21irqrtprio21:18:201
1277279991512,2cyclictest1400117-21needreboot20:48:221
1277279991512,2cyclictest1322034-21latency_hist19:45:021
1277279991511,3cyclictest1751984-21kworker/u16:0+nfsiod00:18:211
1277279991511,2cyclictest0-21swapper/120:05:011
127727899157,2cyclictest0-21swapper/022:19:190
127727899157,2cyclictest0-21swapper/000:35:060
127727899156,4cyclictest0-21swapper/000:25:010
127727899156,2cyclictest0-21swapper/000:28:210
127727899155,5cyclictest1652604-21if_enp1s023:18:190
127727899155,5cyclictest0-21swapper/023:33:200
1277278991512,2cyclictest1384103-21head20:38:180
1277278991512,2cyclictest1313-21gmain19:34:560
1277278991512,2cyclictest1298752-21fschecks_count19:28:170
1277278991512,2cyclictest1287133-21cut19:18:160
1277278991511,3cyclictest1524374-21kworker/u16:4+nfsiod22:09:450
1277278991511,3cyclictest1419198-21kworker/u16:0+nfsiod22:42:390
2649091140,4phc2sys0-21swapper/300:27:503
2649091140,2phc2sys0-21swapper/323:39:563
2649091140,2phc2sys0-21swapper/322:47:213
2649091140,2phc2sys0-21swapper/322:47:213
1277280991411,1cyclictest0-21swapper/223:32:452
1277280991411,1cyclictest0-21swapper/221:33:202
1277280991411,1cyclictest0-21swapper/220:18:222
1277280991411,1cyclictest0-21swapper/220:10:352
1277280991411,1cyclictest0-21swapper/219:23:132
1277280991411,1cyclictest0-21swapper/219:15:012
1277280991411,1cyclictest0-21swapper/200:38:192
127727999146,7cyclictest1671960-21tr23:28:191
127727999146,7cyclictest1288-1atopacctd00:05:031
127727999144,4cyclictest1277276-21cyclictest20:40:281
1277279991412,1cyclictest1378102-21if_enp1s020:33:171
1277279991411,2cyclictest1311617-21tr19:38:211
1277279991410,3cyclictest1491843-21kthreadcore21:48:191
1277279991410,3cyclictest0-21swapper/121:05:011
127727899147,6cyclictest1511275-21kthreadcore21:58:200
127727899145,3cyclictest1359693-21df_inode20:18:150
127727899141,7cyclictest1290-21dbus-daemon20:10:020
1277278991411,2cyclictest29021-21rtkit-daemon20:46:310
1277278991411,2cyclictest1408813-21kthreadcore20:58:190
1277278991411,2cyclictest1277288-21systemd-run19:10:010
127727899140,9cyclictest1334729-21/usr/sbin/munin19:58:130
2649091131,3phc2sys0-21swapper/323:23:123
2649091131,3phc2sys0-21swapper/320:28:143
2649091130,2phc2sys0-21swapper/322:42:343
2649091130,2phc2sys0-21swapper/322:15:423
2649091130,2phc2sys0-21swapper/321:33:423
2649091130,2phc2sys0-21swapper/321:14:103
2649091130,2phc2sys0-21swapper/300:03:383
14388202130,2sleep30-21swapper/321:18:213
127728099136,5cyclictest1565391-21taskset22:28:182
127728099131,5cyclictest0-21swapper/223:30:022
1277280991311,1cyclictest0-21swapper/223:55:092
1277280991311,1cyclictest0-21swapper/223:08:242
1277280991311,1cyclictest0-21swapper/219:43:282
1277280991310,1cyclictest0-21swapper/223:38:172
1277280991310,1cyclictest0-21swapper/223:00:002
1277280991310,1cyclictest0-21swapper/222:53:172
1277280991310,1cyclictest0-21swapper/222:43:202
1277280991310,1cyclictest0-21swapper/221:41:012
1277280991310,1cyclictest0-21swapper/221:03:202
1277280991310,1cyclictest0-21swapper/220:48:172
1277280991310,1cyclictest0-21swapper/219:58:202
1277280991310,1cyclictest0-21swapper/219:53:172
1277280991310,1cyclictest0-21swapper/219:30:002
1277279991310,2cyclictest1571293-21aten_repower_vo22:33:141
1277279991310,2cyclictest1384303-21sort20:38:201
1277279991310,2cyclictest1371872-21fschecks_time20:28:171
1277279991310,2cyclictest1366391-21irqrtprio20:23:181
1277278991310,2cyclictest1415269-21kthreadcore21:03:190
1277278991310,2cyclictest0-21swapper/020:53:250
2902298120,3rtkit-daemon788125-21munin-node19:09:491
2649091123,2phc2sys0-21swapper/323:48:163
2649091120,3phc2sys0-21swapper/319:23:133
2649091120,2phc2sys0-21swapper/321:41:073
14083622120,4sleep30-21swapper/320:58:183
127728099129,1cyclictest0-21swapper/220:54:062
127727999126,2cyclictest134050irq/121-eno121:08:141
127727999125,5cyclictest1401670-21cpu20:53:141
2649091112,2phc2sys0-21swapper/323:15:023
2649091112,2phc2sys0-21swapper/300:32:213
2649091111,3phc2sys0-21swapper/322:39:463
2649091111,2phc2sys0-21swapper/320:08:173
2649091110,3phc2sys0-21swapper/300:35:453
2649091110,2phc2sys0-21swapper/322:02:073
2649091110,2phc2sys0-21swapper/320:33:193
2649091110,1phc2sys0-21swapper/320:46:413
15320662110,4sleep30-21swapper/322:08:403
13285212110,4sleep30-21swapper/319:51:303
127728099118,1cyclictest0-21swapper/200:05:362
127728099111,5cyclictest0-21swapper/219:10:022
2649091101,2phc2sys0-21swapper/323:40:313
2649091101,2phc2sys0-21swapper/323:26:363
2649091101,2phc2sys0-21swapper/320:23:163
2649091100,6phc2sys1444408-21chrt21:21:423
2649091100,2phc2sys0-21swapper/323:18:273
2649091100,2phc2sys0-21swapper/323:01:023
2649091100,2phc2sys0-21swapper/322:13:133
2649091100,2phc2sys0-21swapper/321:26:323
2649091100,2phc2sys0-21swapper/319:43:173
2649091100,2phc2sys0-21swapper/300:22:553
2649091100,2phc2sys0-21swapper/300:15:423
2649091100,1phc2sys0-21swapper/322:57:543
2649091100,1phc2sys0-21swapper/319:56:193
2649091100,1phc2sys0-21swapper/319:31:103
2649091100,1phc2sys0-21swapper/319:05:343
127728099108,1cyclictest0-21swapper/220:02:542
264909191,2phc2sys0-21swapper/320:18:193
264909191,2phc2sys0-21swapper/319:47:093
264909191,2phc2sys0-21swapper/319:17:203
264909190,3phc2sys0-21swapper/319:38:163
264909190,2phc2sys0-21swapper/321:08:133
264909190,2phc2sys0-21swapper/321:03:203
264909190,2phc2sys0-21swapper/320:53:183
264909190,2phc2sys0-21swapper/320:44:563
264909190,2phc2sys0-21swapper/320:38:203
264909190,2phc2sys0-21swapper/320:03:163
264909190,2phc2sys0-21swapper/319:10:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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