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2026-08-02 - 11:20
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack0slot2.osadl.org (updated Sun Aug 02, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120272925746,8sleep40-21swapper/419:08:144
120264825722,30sleep70-21swapper/719:07:047
1203065994341,2cyclictest1440051-21kworker/u16:1+flush-8:021:09:155
120269224231,8sleep50-21swapper/519:07:435
1203073994136,4cyclictest1488497-21latency_hist21:28:467
13959892390,0sleep71395990-21grep20:44:067
1203065993735,2cyclictest1485649-21kworker/u16:3+flush-8:021:28:585
1203065993634,2cyclictest1884244-21kworker/u16:4+flush-8:000:09:115
1203073993431,2cyclictest125-21kswapd000:07:277
1203065993432,2cyclictest1618382-21kworker/u16:1+events_unbound23:08:595
1203065993331,2cyclictest1618382-21kworker/u16:1+flush-8:022:34:025
120260023323,7sleep60-21swapper/619:06:236
1203065993230,2cyclictest1511728-21kworker/u16:1+flush-8:021:44:025
1203065993129,2cyclictest1884244-21kworker/u16:4+flush-8:000:34:035
1203073993024,5cyclictest1362512-21latency_hist20:28:467
1203065993028,2cyclictest1755545-21kworker/u16:0+flush-8:023:23:595
1203073992922,6cyclictest1633529-21latency_hist22:28:457
1203065992927,2cyclictest1183337-21kworker/u16:0+flush-8:019:54:005
1203065992826,2cyclictest1557920-21kworker/u16:4+flush-8:022:09:015
1203065992624,2cyclictest1304074-21kworker/u16:2+flush-8:020:04:015
1203065992624,2cyclictest1129118-21kworker/u16:2+events_unbound19:24:005
1203065992623,2cyclictest1618382-21kworker/u16:1+flush-8:022:53:525
1203073992520,4cyclictest1536801-21latency_hist21:48:457
1203073992518,6cyclictest1294471-21latency_hist19:53:467
1203069992422,2cyclictest1352672-21kworker/u16:3+flush-8:020:29:116
1203065992422,2cyclictest1742643-21kworker/u16:2+events_unbound23:14:095
1203065992422,2cyclictest1618382-21kworker/u16:1+flush-8:022:24:105
1203065992422,2cyclictest1618382-21kworker/u16:1+flush-8:022:19:135
1203065992422,2cyclictest1284659-21kworker/u16:1+flush-8:020:29:015
1203065992422,2cyclictest1202767-21kworker/u16:3+flush-8:019:13:515
1203065992321,2cyclictest1823966-21kworker/u16:0+events_unbound00:04:055
1203073992217,4cyclictest1323639-21latency_hist20:08:467
1203065992220,2cyclictest1884244-21kworker/u16:4+flush-8:000:22:475
1203065992220,2cyclictest1823966-21kworker/u16:0+flush-8:023:59:115
1203065992220,2cyclictest1618382-21kworker/u16:1+events_unbound23:04:155
1203065992220,2cyclictest1304074-21kworker/u16:2+flush-8:021:22:035
1203065992119,2cyclictest1823966-21kworker/u16:0+events_unbound23:44:155
1203065992119,2cyclictest1618382-21kworker/u16:1+flush-8:023:03:415
1203065992119,2cyclictest1557920-21kworker/u16:4+flush-8:021:58:415
1203065992119,2cyclictest1372190-21kworker/u16:0+events_unbound21:14:005
1203065992119,2cyclictest1183337-21kworker/u16:0+events_unbound19:34:045
1203065992118,2cyclictest1557920-21kworker/u16:4+flush-8:021:58:515
1203060992117,1cyclictest0-21swapper/400:34:144
1203065992018,2cyclictest1884244-21kworker/u16:4+flush-8:000:29:115
1203065992018,2cyclictest1884244-21kworker/u16:4+flush-8:000:29:115
1203065992018,2cyclictest1836917-21kworker/u16:1+flush-8:023:58:405
1203065992018,2cyclictest1631241-21kworker/u16:0+flush-8:022:29:015
1203065992018,2cyclictest1631241-21kworker/u16:0+flush-8:022:29:015
1203065992018,2cyclictest1557920-21kworker/u16:4+flush-8:022:04:165
1203065992018,2cyclictest1525117-21kworker/u16:2+events_unbound22:14:195
1203065992018,2cyclictest1372190-21kworker/u16:0+events_unbound20:44:165
1203073991914,4cyclictest0-21swapper/722:58:467
1203065991917,2cyclictest1836917-21kworker/u16:1+flush-8:000:16:185
1203065991917,2cyclictest1655845-21kworker/u16:2+events_unbound22:44:025
1203065991916,2cyclictest1742643-21kworker/u16:2+events_unbound23:28:555
120307399180,16cyclictest0-21swapper/722:04:117
1203065991816,2cyclictest1823966-21kworker/u16:0+flush-8:023:50:115
1203065991816,2cyclictest1823966-21kworker/u16:0+flush-8:023:50:115
1203065991816,2cyclictest1742643-21kworker/u16:2+flush-8:023:34:095
1203065991816,2cyclictest1304074-21kworker/u16:2+events_unbound20:51:065
1203065991816,2cyclictest1284659-21kworker/u16:1+events_unbound20:59:135
1203065991816,2cyclictest1284659-21kworker/u16:1+events_unbound20:23:275
1203065991815,2cyclictest1681848-21kworker/u16:3+flush-8:022:48:555
1203073991713,3cyclictest1302-21snmpd19:54:187
1203065991715,2cyclictest1742643-21kworker/u16:2+flush-8:023:19:365
1203065991715,2cyclictest1657741-21kworker/u16:4+events_unbound23:39:045
1203065991715,2cyclictest1618382-21kworker/u16:1+flush-8:022:39:015
1203065991715,2cyclictest1304074-21kworker/u16:2+flush-8:021:24:145
1203065991715,2cyclictest1304074-21kworker/u16:2+flush-8:021:04:085
1203065991715,2cyclictest1284659-21kworker/u16:1+events_unbound20:39:115
1203065991715,2cyclictest1183337-21kworker/u16:0+flush-8:019:09:165
1203065991715,2cyclictest1183337-21kworker/u16:0+events_unbound19:19:155
120307399169,6cyclictest1609361-21latency_hist22:18:467
120307399166,8cyclictest6530-21gmain23:53:437
120307399166,8cyclictest6530-21gmain23:53:437
1203073991611,4cyclictest1850901-21latency_hist23:58:457
120307399160,14cyclictest1776215-21ssh23:24:287
120307399160,14cyclictest1740059-21ssh23:09:357
120307399160,14cyclictest1558000-21ssh21:54:137
120307399160,14cyclictest0-21swapper/720:09:027
1203065991614,2cyclictest1485649-21kworker/u16:3+events_unbound21:49:265
1203065991614,2cyclictest1324024-21kworker/u16:3+events_unbound20:13:025
1203065991614,2cyclictest1265093-21kworker/u16:3+events_unbound19:46:155
1203065991613,2cyclictest1485649-21kworker/u16:3+flush-8:021:39:015
1203060991614,2cyclictest1557920-21kworker/u16:4+flush-8:021:54:454
120307399157,7cyclictest6050-21gmain23:08:237
1203073991512,2cyclictest0-21swapper/721:58:467
120307399150,7cyclictest1642388-21ssh22:29:097
120307399150,7cyclictest1642388-21ssh22:29:097
120307399150,3cyclictest1885453-21sh00:10:187
120307399150,14cyclictest0-21swapper/719:39:127
120307399150,13cyclictest0-21swapper/721:19:107
120307399150,13cyclictest0-21swapper/719:29:077
1203069991514,1cyclictest1421205-21cpuspeed20:58:566
120306999150,14cyclictest0-21swapper/623:59:126
1203065991513,2cyclictest1265093-21kworker/u16:3+events_unbound20:00:025
1203065991513,2cyclictest1183337-21kworker/u16:0+flush-8:019:48:575
120306099150,1cyclictest0-21swapper/420:44:124
120307399148,5cyclictest1381893-21latency_hist20:38:467
120307399148,5cyclictest1302-21snmpd23:48:097
120307399141,12cyclictest6124-21gmain22:55:517
120307399141,12cyclictest5861-21gmain22:48:237
120307399140,4cyclictest1814409-21ssh23:43:107
120307399140,4cyclictest0-21swapper/700:14:047
120307399140,13cyclictest1620164-21ssh22:21:227
120307399140,12cyclictest1761639-21sh23:19:097
120307399140,12cyclictest1450093-21ssh21:09:357
120306999142,8cyclictest1259189-21kthreadcore19:34:046
120306999141,3cyclictest1230901-21cut19:19:056
1203069991413,1cyclictest0-21swapper/619:09:146
120306999140,1cyclictest0-21swapper/623:51:146
120306999140,1cyclictest0-21swapper/623:51:146
1203065991412,2cyclictest1851373-21kworker/u16:5+flush-8:000:24:145
1203065991412,2cyclictest1485649-21kworker/u16:3+flush-8:021:33:565
1203065991412,2cyclictest1352672-21kworker/u16:3+flush-8:020:24:025
1203065991412,2cyclictest1304074-21kworker/u16:2+events_unbound20:54:165
1203065991412,2cyclictest1304074-21kworker/u16:2+events_unbound20:14:145
1203065991412,2cyclictest1129118-21kworker/u16:2+events_unbound19:28:595
1203060991413,1cyclictest0-21swapper/423:21:244
1203060991413,1cyclictest0-21swapper/423:15:244
1203060991413,1cyclictest0-21swapper/422:37:344
1203060991413,1cyclictest0-21swapper/422:12:394
1203060991413,1cyclictest0-21swapper/421:59:444
1203060991413,1cyclictest0-21swapper/421:44:264
120306099140,14cyclictest0-21swapper/423:09:254
120306099140,14cyclictest0-21swapper/422:06:114
120306099140,14cyclictest0-21swapper/421:27:434
1203073991311,1cyclictest1548838-21ssh21:53:457
1203073991310,2cyclictest125-21kswapd000:23:587
120307399130,5cyclictest1946021-21ssh00:35:467
120307399130,12cyclictest5965-21gmain21:28:517
120307399130,12cyclictest1693872-21ssh22:53:437
120306999139,1cyclictest201rcu_preempt19:29:026
1203069991312,1cyclictest1621908-21/usr/sbin/munin22:24:146
1203069991312,1cyclictest0-21swapper/623:12:086
1203069991312,1cyclictest0-21swapper/621:44:476
1203069991312,1cyclictest0-21swapper/621:15:186
1203069991310,2cyclictest6379-21evolution-addre19:47:566
1203069991310,2cyclictest1433872-21kthreadcore21:04:046
120306999130,1cyclictest0-21swapper/623:26:196
120306599130,1cyclictest0-21swapper/519:40:395
1203060991312,1cyclictest0-21swapper/400:23:404
1203060991312,1cyclictest0-21swapper/400:06:584
120306099130,13cyclictest0-21swapper/423:48:404
120306099130,13cyclictest0-21swapper/420:09:034
120306099130,13cyclictest0-21swapper/400:28:434
120307399129,2cyclictest1302-21snmpd21:41:037
120307399129,2cyclictest1302-21snmpd21:37:357
120307399129,2cyclictest1302-21snmpd20:51:587
120307399128,3cyclictest1302-21snmpd20:15:427
120307399128,3cyclictest1302-21snmpd19:14:267
120307399128,3cyclictest1302-21snmpd19:09:267
120307399126,5cyclictest1302-21snmpd19:35:027
120307399121,9cyclictest5965-21gmain20:58:597
120307399120,11cyclictest1778834-21ssh23:28:487
120307399120,11cyclictest1667844-21ssh22:40:067
120307399120,11cyclictest1302-21snmpd20:00:457
120307399120,11cyclictest1302-21snmpd00:32:527
120307399120,11cyclictest1302-21snmpd00:32:527
120307399120,11cyclictest1108-21ntpd23:37:577
120307399120,11cyclictest1108-21ntpd22:37:577
120307399120,10cyclictest6466-21gmain23:13:597
120307399120,10cyclictest1194-21containerd23:58:597
120306999129,2cyclictest1640801-21kthreadcore22:29:076
120306999129,2cyclictest1640801-21kthreadcore22:29:076
120306999128,3cyclictest1779722-21cat23:29:016
120306999126,6cyclictest0-21swapper/600:09:376
120306999125,5cyclictest201rcu_preempt22:57:426
120306999125,5cyclictest201rcu_preempt21:51:406
120306999125,3cyclictest1501944-21awk21:34:036
120306999123,8cyclictest1674965-21tr22:44:056
120306999123,7cyclictest0-21swapper/621:54:246
120306999121,4cyclictest1808606-21kthreadcore23:39:056
120306999121,4cyclictest1714953-21awk22:59:086
120306999121,4cyclictest1315661-21grep20:04:036
1203069991211,1cyclictest851ktimers/620:56:426
1203069991211,1cyclictest1847819-21strings23:54:096
1203069991211,1cyclictest0-21swapper/622:38:586
1203069991211,1cyclictest0-21swapper/622:34:026
1203069991211,1cyclictest0-21swapper/622:01:216
1203069991211,1cyclictest0-21swapper/621:41:486
1203069991211,1cyclictest0-21swapper/621:29:056
1203069991211,1cyclictest0-21swapper/621:21:186
1203069991211,1cyclictest0-21swapper/621:09:476
1203069991211,1cyclictest0-21swapper/620:49:136
1203069991211,1cyclictest0-21swapper/600:14:136
120306999120,12cyclictest86-21ksoftirqd/600:27:016
120306999120,12cyclictest0-21swapper/623:46:406
120306999120,12cyclictest0-21swapper/622:08:556
1203065991210,2cyclictest1372190-21kworker/u16:0+events_unbound20:33:525
120306099129,2cyclictest0-21swapper/419:29:104
120306099126,5cyclictest1835561-21cat23:49:064
120306099126,5cyclictest1835561-21cat23:49:064
120306099122,9cyclictest1598610-21sed22:14:024
1203060991211,1cyclictest0-21swapper/423:27:234
1203060991211,1cyclictest0-21swapper/421:40:294
1203060991211,1cyclictest0-21swapper/421:32:084
1203060991211,1cyclictest0-21swapper/421:16:224
1203060991211,1cyclictest0-21swapper/419:49:494
1203060991211,1cyclictest0-21swapper/419:14:494
1203060991211,1cyclictest0-21swapper/400:16:354
120307399118,2cyclictest1302-21snmpd20:31:377
120307399117,3cyclictest1302-21snmpd21:15:117
120307399115,5cyclictest6233-21gvfs-afc-volume19:19:107
120307399115,4cyclictest1903421-21grep00:19:057
120307399113,7cyclictest1435757-21tr21:04:067
120307399111,5cyclictest1384132-21grep20:39:067
120307399111,2cyclictest5965-21gmain19:48:437
120307399110,9cyclictest0-21swapper/720:54:097
120307399110,6cyclictest0-21swapper/720:19:107
120307399110,2cyclictest1595146-21ssh22:09:437
120307399110,1cyclictest0-21swapper/719:24:057
120306999117,4cyclictest0-21swapper/600:38:436
120306999114,5cyclictest201rcu_preempt23:22:426
120306999111,5cyclictest1213135-21cat19:13:476
120306999111,4cyclictest1385885-21cut20:39:076
1203069991111,0cyclictest0-21swapper/623:14:136
1203069991110,1cyclictest0-21swapper/623:38:126
1203069991110,1cyclictest0-21swapper/623:04:036
1203069991110,1cyclictest0-21swapper/622:49:146
1203069991110,1cyclictest0-21swapper/622:14:006
1203069991110,1cyclictest0-21swapper/621:23:576
1203069991110,1cyclictest0-21swapper/620:44:076
1203069991110,1cyclictest0-21swapper/620:19:136
1203069991110,1cyclictest0-21swapper/620:09:056
1203069991110,1cyclictest0-21swapper/619:57:446
1203069991110,1cyclictest0-21swapper/619:49:046
1203069991110,1cyclictest0-21swapper/619:39:006
1203069991110,1cyclictest0-21swapper/619:23:576
1203069991110,1cyclictest0-21swapper/600:29:076
1203069991110,1cyclictest0-21swapper/600:29:076
1203069991110,1cyclictest0-21swapper/600:22:556
1203069991110,1cyclictest0-21swapper/600:04:226
120306999110,1cyclictest0-21swapper/620:33:506
120306099119,2cyclictest0-21swapper/420:04:284
120306099119,1cyclictest0-21swapper/422:24:034
120306099119,1cyclictest0-21swapper/421:04:064
120306099119,1cyclictest0-21swapper/420:54:024
120306099112,5cyclictest16955201irqcore22:54:024
1203060991110,1cyclictest0-21swapper/423:06:254
1203060991110,1cyclictest0-21swapper/422:31:344
1203060991110,1cyclictest0-21swapper/422:31:344
1203060991110,1cyclictest0-21swapper/422:22:074
1203060991110,1cyclictest0-21swapper/419:42:154
120306099110,11cyclictest0-21swapper/420:26:524
120306999109,1cyclictest0-21swapper/622:19:016
120306999108,2cyclictest86-21ksoftirqd/622:03:596
120306999106,3cyclictest1337662-21kthreadcore20:14:076
120306999101,2cyclictest1354693-21cut20:24:036
120306099109,1cyclictest0-21swapper/423:00:264
120306099109,1cyclictest0-21swapper/421:36:334
120306099109,1cyclictest0-21swapper/421:08:584
120306099109,1cyclictest0-21swapper/421:03:264
120306099109,1cyclictest0-21swapper/420:22:464
120306099109,1cyclictest0-21swapper/420:14:054
120306099109,1cyclictest0-21swapper/419:12:174
120306099108,2cyclictest0-21swapper/422:47:304
120306099106,3cyclictest1539354-21kthreadcore21:49:034
120306099106,3cyclictest1389400-21kthreadcore20:39:094
120306099106,3cyclictest1244039-21cut19:24:064
120306099106,3cyclictest1229287-21kthreadcore19:19:044
120306099105,4cyclictest1305014-21expr19:58:584
120306099104,5cyclictest1466137-21kthreadcore21:19:034
120306099102,7cyclictest1842336-21cut23:54:054
1203060991010,0cyclictest0-21swapper/400:01:274
120306099100,10cyclictest0-21swapper/419:44:464
12030699998,1cyclictest0-21swapper/619:58:576
12030609998,1cyclictest0-21swapper/422:41:024
12030609995,3cyclictest1875896-21grep00:08:564
12030609995,3cyclictest1791175-21grep23:33:584
12030609993,5cyclictest1930573-21cut00:29:054
12030609993,5cyclictest1930573-21cut00:29:054
12030609992,6cyclictest1803664-21fschecks_count23:38:594
12030609992,6cyclictest1690896-21ntp_kernel_pll_22:49:104
12030609992,6cyclictest1258492-21grep19:34:044
12030609992,1cyclictest0-21swapper/423:29:054
12030609991,7cyclictest1381641-21taskset20:35:224
12030609991,4cyclictest13696431kthreadcore20:29:084
12030609983,4cyclictest1401847-21grep20:48:584
12030609983,4cyclictest1295109-21tr19:53:584
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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