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2025-08-30 - 15:46
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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 792 highest latencies:
System rackbslot1.osadl.org (updated Sat Aug 30, 2025 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16245172224181,32sleep10-21swapper/107:08:561
16245832217189,18sleep30-21swapper/307:09:453
16243892199153,37sleep20-21swapper/207:07:202
16243322190162,18sleep00-21swapper/007:06:330
177546021510,2sleep129-21ksoftirqd/109:35:041
16247929910547,17cyclictest40658-21ThreadPoolForeg07:45:010
1624795997014,12cyclictest1662257-21/usr/sbin/munin07:45:011
162480399691,67cyclictest1857951-21kworker/u8:2+efi_rts_wq11:50:112
162480899583,12cyclictest1662250-21/usr/share/muni07:45:023
19536782570,2sleep01953684-21needreboot12:25:190
1624803995753,3cyclictest1668675-21kworker/u8:0+events_unbound08:35:092
162479299563,52cyclictest1857951-21kworker/u8:2+efi_rts_wq11:50:120
1624803995047,2cyclictest1811886-21kworker/2:0+pm11:21:472
162480399494,44cyclictest1723744-21chrome08:45:012
1624803994835,2cyclictest1718301-21kworker/2:0+pm09:26:032
1624795994832,15cyclictest1085098-1kworker/1:0H+kblockd08:00:481
1624792994843,4cyclictest1629152-31munin-html07:10:340
17340472470,1chrt1734045-21snmp_ryswitch2.08:55:020
1624803994642,3cyclictest1780150-21kworker/u8:0+events_unbound09:55:182
1624803994640,4cyclictest1961447-21latency_hist12:35:002
1624803994633,1cyclictest1718301-21kworker/2:0+pm09:20:452
1624795994620,21cyclictest1260-21snmpd09:09:591
1624792994633,12cyclictest1192152-1kworker/0:1H+kblockd07:20:530
1624803994519,25cyclictest40680-13Chrome_ChildIOT09:50:502
18535582440,2sleep240680-13Chrome_ChildIOT10:50:052
1624808994428,15cyclictest1728396-21kworker/u8:3+flush-179:011:00:013
1624803994441,2cyclictest1785797-21munin-update09:45:012
1624803994440,3cyclictest1916964-21kworker/u8:0+flush-179:012:05:212
1624803994440,3cyclictest1718382-21kworker/u8:2+events_unbound08:40:092
1624795994438,4cyclictest76405-21systemd-journal07:25:011
1624803994329,13cyclictest1811886-21kworker/2:0+pm10:25:352
1624792994340,1cyclictest1260-21snmpd10:24:480
1624803994238,2cyclictest1629674-21kworker/u8:0+flush-179:007:40:012
1624792994232,2cyclictest1192152-1kworker/0:1H+kblockd07:30:030
1624808994128,12cyclictest1260-21snmpd10:00:593
1624803994138,2cyclictest1811886-21kworker/2:0+pm11:19:442
1624803994138,2cyclictest1668675-21kworker/u8:0+flush-179:008:10:092
1624803994138,2cyclictest1608651-21kworker/2:0+pm07:28:122
1624803994137,3cyclictest1636522-21/usr/share/muni07:20:032
1624803994137,2cyclictest1920992-21kworker/2:1+pm12:20:162
1624795994137,3cyclictest76405-21systemd-journal07:59:591
1624795994136,3cyclictest1728775-21munin-update08:50:331
1624795994134,6cyclictest1260-21snmpd12:06:011
17142632400,1sleep10-21swapper/108:35:091
1624803994038,2cyclictest1916964-21kworker/u8:0+flush-179:012:15:262
1624803994037,2cyclictest749201-1kworker/2:2H+kblockd10:44:552
1624803994037,2cyclictest1916964-21kworker/u8:0+flush-179:012:35:312
1624803994037,2cyclictest1608651-21kworker/2:0+pm08:07:182
1624803994036,3cyclictest1811886-21kworker/2:0+pm11:13:522
1624795994035,4cyclictest1868262-21kworker/1:1+pm11:42:461
1624792994036,3cyclictest1873166-21kworker/0:2+pm11:22:570
1624808993935,3cyclictest1728396-21kworker/u8:3+flush-179:010:30:193
1624808993934,4cyclictest1849418-21ThreadPoolForeg10:45:143
1624808993928,10cyclictest1260-21snmpd08:02:213
1624803993937,1cyclictest1811886-21kworker/2:0+pm10:10:282
1624803993937,1cyclictest1796280-21kworker/2:2+pm10:04:322
1624803993936,2cyclictest1852713-21kworker/u8:0+flush-179:011:00:552
1624803993936,2cyclictest1811886-21kworker/2:0+pm10:22:222
1624803993936,2cyclictest1734349-21kworker/u8:2+flush-179:009:05:262
1624803993936,2cyclictest1608651-21kworker/2:0+pm08:19:552
1624803993936,2cyclictest1608651-21kworker/2:0+pm08:00:342
1624803993936,2cyclictest1608651-21kworker/2:0+pm07:10:322
1624803993935,3cyclictest1938092-21apt-get12:10:182
1624803993935,3cyclictest1734349-21kworker/u8:2+flush-179:009:30:332
1624803993935,3cyclictest1608651-21kworker/2:0+pm07:31:222
1624803993935,2cyclictest1796280-21kworker/2:2+pm10:06:372
1624803993934,4cyclictest1955402-21ntpq12:25:352
1624795993934,4cyclictest40612-21ThreadPoolForeg11:36:411
1624795993932,6cyclictest40612-21ThreadPoolForeg12:10:311
1624792993935,3cyclictest1760956-21apt-get09:20:130
17444582380,2chrt1744439-21snmp_wlanpowerc09:05:040
1624808993836,1cyclictest1842730-21kworker/3:0+pm12:06:253
1624808993836,1cyclictest1842730-21kworker/3:0+pm11:17:003
1624808993836,1cyclictest1528875-21kworker/3:1+pm08:37:473
1624808993834,3cyclictest1427547-1kworker/3:0H+kblockd11:01:283
1624808993825,12cyclictest1427547-1kworker/3:0H+kblockd09:40:173
1624803993836,1cyclictest1811886-21kworker/2:0+pm11:25:172
1624803993836,1cyclictest1811886-21kworker/2:0+pm11:08:362
1624803993836,1cyclictest1718301-21kworker/2:0+pm09:15:212
1624803993836,1cyclictest1718301-21kworker/2:0+pm08:55:142
1624803993836,1cyclictest1718301-21kworker/2:0+pm08:50:492
1624803993836,1cyclictest1608651-21kworker/2:0+pm08:22:192
1624803993836,1cyclictest1608651-21kworker/2:0+pm07:50:022
1624803993836,1cyclictest1608651-21kworker/2:0+pm07:16:302
1624803993835,2cyclictest1834019-21kworker/u8:1+flush-179:010:45:312
1624803993835,2cyclictest1728396-21kworker/u8:3+flush-179:010:55:282
1624803993835,2cyclictest1718301-21kworker/2:0+pm09:01:462
1624803993835,2cyclictest1608651-21kworker/2:0+pm08:29:312
1624803993834,3cyclictest749201-1kworker/2:2H+kblockd12:02:562
1624803993834,3cyclictest1811886-21kworker/2:0+pm11:42:002
1624795993836,1cyclictest1868641-21/usr/share/muni11:05:141
1624795993836,1cyclictest1822286-21kworker/1:2+pm10:47:071
1624795993834,2cyclictest1085098-1kworker/1:0H+kblockd10:29:421
1624795993829,5cyclictest1868262-21kworker/1:1+pm11:10:301
1624792993836,1cyclictest1646284-21kworker/0:0+pm07:50:250
1624792993836,1cyclictest1635516-21kworker/0:2+pm07:28:160
1624792993835,2cyclictest1916964-21kworker/u8:0+flush-179:012:35:270
1624792993835,2cyclictest1192152-1kworker/0:1H+kblockd10:06:390
1624792993832,4cyclictest1848087-21/usr/share/muni10:45:010
162479299381,34cyclictest1910155-21munin-run11:45:010
1624808993735,1cyclictest1929931-21kworker/3:1+pm12:17:003
1624808993735,1cyclictest1842730-21kworker/3:0+pm11:07:473
1624808993734,2cyclictest1427547-1kworker/3:0H+kblockd09:50:063
1624808993734,2cyclictest1427547-1kworker/3:0H+kblockd08:45:053
1624808993734,2cyclictest1427547-1kworker/3:0H+kblockd07:37:023
1624808993733,2cyclictest1427547-1kworker/3:0H+kblockd08:30:053
1624808993726,11cyclictest1260-21snmpd10:17:363
1624803993736,1cyclictest1608651-21kworker/2:0+pm07:42:222
1624803993735,2cyclictest1857951-21kworker/u8:2+flush-179:011:55:092
1624803993735,1cyclictest1718301-21kworker/2:0+pm09:41:322
1624803993735,1cyclictest1718301-21kworker/2:0+pm09:35:342
1624803993735,1cyclictest1703493-21kworker/2:2+pm08:30:102
1624803993735,1cyclictest1608651-21kworker/2:0+pm07:56:202
1624803993734,2cyclictest1811886-21kworker/2:0+pm10:35:322
1624803993732,3cyclictest40657-21ThreadPoolForeg09:11:012
1624795993735,1cyclictest1624662-21kworker/1:2+pm07:28:021
1624795993735,1cyclictest105470-21isc-net-000010:04:131
1624795993734,2cyclictest1085098-1kworker/1:0H+kblockd09:32:191
1624795993734,2cyclictest1085098-1kworker/1:0H+kblockd08:30:031
1624795993732,4cyclictest1863543-21/usr/share/muni11:00:011
1624795993731,4cyclictest1895032-21/usr/share/muni11:30:011
1624795993730,6cyclictest1260-21snmpd11:28:291
1624792993735,1cyclictest1646284-21kworker/0:0+pm08:33:520
1624792993734,2cyclictest1192152-1kworker/0:1H+kblockd12:03:320
1624792993734,2cyclictest1192152-1kworker/0:1H+kblockd10:14:510
1624792993734,2cyclictest1192152-1kworker/0:1H+kblockd09:43:450
1624792993733,3cyclictest1192152-1kworker/0:1H+kblockd09:01:430
1624792993733,2cyclictest1192152-1kworker/0:1H+kblockd09:33:270
1624792993733,2cyclictest1192152-1kworker/0:1H+kblockd08:35:270
1624792993731,5cyclictest1911900-21ThreadPoolForeg11:45:160
1624808993634,1cyclictest1427547-1kworker/3:0H+kblockd12:35:073
1624808993634,1cyclictest1427547-1kworker/3:0H+kblockd11:14:443
1624808993634,1cyclictest1427547-1kworker/3:0H+kblockd10:41:113
1624808993633,2cyclictest1427547-1kworker/3:0H+kblockd11:20:043
1624808993633,2cyclictest1427547-1kworker/3:0H+kblockd10:20:053
1624808993633,2cyclictest1427547-1kworker/3:0H+kblockd09:34:413
1624808993632,3cyclictest1427547-1kworker/3:0H+kblockd12:14:203
1624803993633,2cyclictest749201-1kworker/2:2H+kblockd10:15:072
1624803993633,2cyclictest1811886-21kworker/2:0+pm11:45:122
1624803993632,3cyclictest1811886-21kworker/2:0+pm10:30:042
1624803993632,2cyclictest749201-1kworker/2:2H+kblockd11:30:152
1624795993634,1cyclictest1260-21snmpd07:11:291
1624795993634,1cyclictest1085098-1kworker/1:0H+kblockd12:18:011
1624795993634,1cyclictest1085098-1kworker/1:0H+kblockd09:42:491
1624795993634,1cyclictest1085098-1kworker/1:0H+kblockd08:26:081
1624795993633,2cyclictest1085098-1kworker/1:0H+kblockd12:28:571
1624795993633,2cyclictest1085098-1kworker/1:0H+kblockd11:22:561
1624795993633,2cyclictest1085098-1kworker/1:0H+kblockd10:20:341
1624795993633,2cyclictest1085098-1kworker/1:0H+kblockd10:15:051
1624792993634,1cyclictest1192152-1kworker/0:1H+kblockd09:12:320
1624792993634,1cyclictest1192152-1kworker/0:1H+kblockd08:20:540
1624792993634,1cyclictest1192152-1kworker/0:1H+kblockd07:55:300
1624792993633,2cyclictest1192152-1kworker/0:1H+kblockd12:15:480
1624792993633,2cyclictest1192152-1kworker/0:1H+kblockd09:15:260
1624792993633,2cyclictest1192152-1kworker/0:1H+kblockd08:44:320
1624792993633,1cyclictest1192152-1kworker/0:1H+kblockd08:25:160
1624792993632,3cyclictest1646284-21kworker/0:0+pm08:17:070
1624792993632,2cyclictest1192152-1kworker/0:1H+kblockd08:05:560
1624792993631,3cyclictest1779511-31munin-html09:35:340
1624808993533,1cyclictest1427547-1kworker/3:0H+kblockd11:26:333
1624808993533,1cyclictest1427547-1kworker/3:0H+kblockd09:22:223
1624808993533,1cyclictest1427547-1kworker/3:0H+kblockd08:20:463
1624808993533,1cyclictest1427547-1kworker/3:0H+kblockd07:58:523
1624808993533,1cyclictest1427547-1kworker/3:0H+kblockd07:27:563
1624808993532,2cyclictest1427547-1kworker/3:0H+kblockd10:06:083
1624808993532,2cyclictest1427547-1kworker/3:0H+kblockd09:45:033
1624808993532,2cyclictest1427547-1kworker/3:0H+kblockd07:15:363
1624808993532,2cyclictest1260-21snmpd08:43:313
1624808993530,4cyclictest1682554-21munin-update08:05:323
1624803993534,1cyclictest1811886-21kworker/2:0+pm11:36:142
1624795993534,1cyclictest1868262-21kworker/1:1+pm11:52:261
1624795993533,1cyclictest1822286-21kworker/1:2+pm10:51:251
1624795993533,1cyclictest1661948-21kworker/1:0+pm08:41:361
1624795993533,1cyclictest1085098-1kworker/1:0H+kblockd10:59:081
1624795993533,1cyclictest1085098-1kworker/1:0H+kblockd10:11:301
1624795993533,1cyclictest1085098-1kworker/1:0H+kblockd09:28:561
1624795993533,1cyclictest1085098-1kworker/1:0H+kblockd09:03:071
1624795993532,2cyclictest1085098-1kworker/1:0H+kblockd09:10:511
1624795993532,2cyclictest1085098-1kworker/1:0H+kblockd08:11:141
1624795993532,2cyclictest1085098-1kworker/1:0H+kblockd07:16:081
1624795993529,5cyclictest1841929-31munin-html10:35:341
1624795993527,7cyclictest1085098-1kworker/1:0H+kblockd08:08:311
1624792993533,1cyclictest1894633-21kworker/0:1+pm12:14:260
1624792993533,1cyclictest1192152-1kworker/0:1H+kblockd11:36:330
1624792993533,1cyclictest1192152-1kworker/0:1H+kblockd11:17:260
1624792993533,1cyclictest1192152-1kworker/0:1H+kblockd11:03:100
1624792993533,1cyclictest1192152-1kworker/0:1H+kblockd10:43:310
1624792993533,1cyclictest1192152-1kworker/0:1H+kblockd07:40:260
1624792993532,2cyclictest1894633-21kworker/0:1+pm12:08:310
1624792993532,2cyclictest1192152-1kworker/0:1H+kblockd10:26:120
162479299351,32cyclictest40658-21ThreadPoolForeg11:10:020
1624808993432,1cyclictest1427547-1kworker/3:0H+kblockd11:56:313
1624808993432,1cyclictest1427547-1kworker/3:0H+kblockd07:40:173
1624808993431,2cyclictest1528875-21kworker/3:1+pm09:17:273
1624808993431,2cyclictest1427547-1kworker/3:0H+kblockd10:53:163
1624808993431,2cyclictest1427547-1kworker/3:0H+kblockd09:57:163
1624808993431,2cyclictest1260-21snmpd12:01:333
1624808993430,3cyclictest1260-21snmpd09:38:173
1624803993430,3cyclictest1663642-21apt-get07:45:162
1624795993433,1cyclictest1085098-1kworker/1:0H+kblockd07:39:381
1624795993432,1cyclictest1085098-1kworker/1:0H+kblockd12:03:551
1624795993432,1cyclictest1085098-1kworker/1:0H+kblockd07:33:061
1624795993431,2cyclictest1085098-1kworker/1:0H+kblockd12:36:001
1624795993431,2cyclictest1085098-1kworker/1:0H+kblockd10:06:521
1624795993431,2cyclictest1085098-1kworker/1:0H+kblockd08:45:351
1624795993429,4cyclictest1260-21snmpd10:41:121
1624795993425,5cyclictest1260-21snmpd09:17:021
1624795993423,1cyclictest1260-21snmpd09:54:061
1624792993433,1cyclictest1192152-1kworker/0:1H+kblockd12:32:030
1624792993431,2cyclictest1192152-1kworker/0:1H+kblockd09:53:260
1624792993430,2cyclictest1940906-21kworker/0:2+pm12:22:400
1624792993430,2cyclictest1192152-1kworker/0:1H+kblockd11:26:410
1624792993426,6cyclictest1857541-21python310:50:380
1624808993332,1cyclictest1427547-1kworker/3:0H+kblockd08:27:483
1624808993331,1cyclictest1528875-21kworker/3:1+pm07:23:063
1624808993331,1cyclictest1427547-1kworker/3:0H+kblockd12:30:543
1624808993331,1cyclictest1427547-1kworker/3:0H+kblockd12:26:443
1624808993331,1cyclictest1427547-1kworker/3:0H+kblockd08:55:303
1624808993330,2cyclictest1427547-1kworker/3:0H+kblockd08:10:333
1624808993330,2cyclictest1260-21snmpd11:37:243
1624808993330,2cyclictest1260-21snmpd08:50:013
1624808993329,2cyclictest40661-13Compositor09:04:363
1624808993329,2cyclictest1427547-1kworker/3:0H+kblockd11:50:053
1624808993329,2cyclictest1427547-1kworker/3:0H+kblockd11:45:023
1624795993332,1cyclictest1661948-21kworker/1:0+pm07:52:461
1624795993331,1cyclictest1260-21snmpd11:15:191
1624795993331,1cyclictest1085098-1kworker/1:0H+kblockd12:34:311
1624795993331,1cyclictest1085098-1kworker/1:0H+kblockd10:34:111
1624795993330,2cyclictest1085098-1kworker/1:0H+kblockd11:48:161
1624795993330,2cyclictest1085098-1kworker/1:0H+kblockd08:24:461
1624795993316,15cyclictest40557-13chrome09:20:131
1624792993332,1cyclictest1646284-21kworker/0:0+pm07:37:560
1624792993330,2cyclictest1646284-21kworker/0:0+pm08:03:160
1624792993330,2cyclictest1192152-1kworker/0:1H+kblockd11:30:110
1624792993330,2cyclictest1192152-1kworker/0:1H+kblockd10:34:540
1624792993330,2cyclictest1192152-1kworker/0:1H+kblockd10:03:170
1624808993229,2cyclictest1427547-1kworker/3:0H+kblockd11:34:433
1624808993229,2cyclictest1427547-1kworker/3:0H+kblockd07:52:023
1624808993229,2cyclictest1260-21snmpd12:20:203
1624808993228,3cyclictest1754314-21kworker/u8:1+flush-179:009:25:203
1624808993228,3cyclictest1528875-21kworker/3:1+pm09:10:253
1624795993230,1cyclictest1085098-1kworker/1:0H+kblockd09:56:271
1624795993230,1cyclictest1085098-1kworker/1:0H+kblockd08:58:161
1624795993229,2cyclictest1260-21snmpd11:57:131
1624795993218,10cyclictest40681-13VizCompositorTh07:44:521
1624792993230,1cyclictest1260-21snmpd11:06:140
1624792993230,1cyclictest1192152-1kworker/0:1H+kblockd10:16:160
1624792993230,1cyclictest1192152-1kworker/0:1H+kblockd08:55:330
1624792993229,2cyclictest1260-21snmpd09:29:020
1624792993229,2cyclictest1192152-1kworker/0:1H+kblockd11:59:560
1624792993229,2cyclictest1192152-1kworker/0:1H+kblockd09:58:260
1624792993228,2cyclictest1192152-1kworker/0:1H+kblockd10:55:020
1624808993129,1cyclictest1260-21snmpd10:25:183
1624808993128,2cyclictest1528875-21kworker/3:1+pm08:19:273
1624808993128,2cyclictest1427547-1kworker/3:0H+kblockd10:35:503
1624808993119,10cyclictest1646816-21snmp_wanpowerct07:30:013
1624795993128,2cyclictest1085098-1kworker/1:0H+kblockd12:20:041
1624792993128,2cyclictest1192152-1kworker/0:1H+kblockd08:46:030
1624808993029,1cyclictest1260-21snmpd11:43:033
1624808993028,1cyclictest1427547-1kworker/3:0H+kblockd07:13:063
1624808993028,1cyclictest1260-21snmpd10:12:123
1624792993028,1cyclictest1260-21snmpd10:35:030
1624792993027,2cyclictest1260-21snmpd09:49:590
1624792993027,2cyclictest1192152-1kworker/0:1H+kblockd07:15:330
1624808992927,1cyclictest1427547-1kworker/3:0H+kblockd09:10:013
1624795992926,2cyclictest1661948-21kworker/1:0+pm08:17:131
1624795992826,1cyclictest1260-21snmpd09:45:091
1624792992820,6cyclictest1687905-21/usr/share/muni08:10:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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