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2026-01-01 - 22:48
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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 rackbslot1.osadl.org (updated Thu Jan 01, 2026 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14608252230185,34sleep10-21swapper/107:09:521
14606392212184,18sleep30-21swapper/307:07:303
14607112210186,14sleep20-21swapper/207:08:242
14605752189166,13sleep00-21swapper/007:06:460
1461215996556,7cyclictest1649247-21/usr/share/muni10:10:130
146122099641,4cyclictest1747882-21chrome11:45:012
1461215996459,3cyclictest1535360-21munin-update08:20:350
1461220995938,20cyclictest1607273-21kworker/u8:0+flush-179:010:00:302
1461222995652,3cyclictest1669222-21kworker/u8:0+flush-179:010:50:323
1461215995651,3cyclictest1602145-21kworker/u8:3+flush-179:011:00:200
1461222995452,1cyclictest1747611-21munin-update11:45:013
1461222995449,4cyclictest1487641-21kworker/u8:2+flush-179:007:55:003
1461217995449,4cyclictest1465769-31munin-html07:10:361
1461217995349,3cyclictest1607273-21kworker/u8:0+flush-179:009:40:121
1461217995248,3cyclictest1643740-21kworker/u8:1+flush-179:010:05:141
1461217995237,2cyclictest1685110-13chrome10:45:011
1461222995144,5cyclictest247560-21ThreadPoolForeg07:55:243
1461220995117,33cyclictest3125629-21e21169fc69a4c6707:33:392
146121599510,49cyclictest105477-21isc-net-000707:45:020
1461220995029,11cyclictest1260-21snmpd12:06:102
1461217995047,2cyclictest1700719-21kworker/u8:2+events_unbound11:30:291
1461217995046,3cyclictest1684468-21kworker/u8:4+flush-179:011:10:161
1461217995046,2cyclictest1601677-21kworker/u8:2+flush-179:009:45:261
1461217995046,2cyclictest1601677-21kworker/u8:2+flush-179:009:45:261
1461215995046,3cyclictest1524779-21kworker/u8:2+flush-179:008:10:150
1461215995046,3cyclictest1429337-21kworker/u8:3+flush-179:007:40:140
14667152490,1chrt1466714-21snmp_wlanswitch07:15:022
1461222994943,4cyclictest1711242-21/usr/share/muni11:10:173
1461220994947,2cyclictest1487641-21kworker/u8:2+flush-179:007:40:112
1461220994946,2cyclictest1789042-21kworker/2:1+pm12:28:462
1461220994937,2cyclictest1540128-21kworker/2:0+pm09:00:142
1461217994945,3cyclictest1716609-21/usr/share/muni11:15:191
1461217994944,4cyclictest1509807-21kworker/u8:1+events_unbound07:55:331
146121799490,37cyclictest1792924-21munin-limits12:25:341
1461215994945,3cyclictest1684468-21kworker/u8:4+flush-179:011:05:200
15765872480,3sleep30-21swapper/308:57:193
1461220994834,2cyclictest1648668-21kworker/2:2+pm10:25:042
1461217994845,2cyclictest1450709-21kworker/u8:1+events_unbound07:25:211
1461217994844,3cyclictest1429337-21kworker/u8:3+flush-179:007:30:121
1461217994843,4cyclictest1700719-21kworker/u8:2+flush-179:011:50:101
1461217994843,3cyclictest1742491-21latency_hist11:40:011
1461220994735,2cyclictest1648668-21kworker/2:2+pm10:11:272
1461217994744,2cyclictest1684468-21kworker/u8:4+flush-179:010:50:371
1461217994744,2cyclictest1601677-21kworker/u8:2+events_unbound09:31:531
1461217994744,2cyclictest1575372-21kworker/u8:0+events_unbound09:00:241
1461215994743,3cyclictest1575372-21kworker/u8:0+events_unbound09:15:270
1461215994740,5cyclictest1679327-31munin-html10:35:460
14889782460,1chrt1488974-21snmp_ryswitch.c07:35:033
1461220994643,2cyclictest1684468-21kworker/u8:4+flush-179:010:50:192
1461217994642,3cyclictest76405-21systemd-journal10:17:021
1461217994642,3cyclictest1710361-21kworker/u8:1+flush-179:011:20:321
1461217994642,3cyclictest1602145-21kworker/u8:3+flush-179:009:35:111
1461215994643,2cyclictest1788526-21kworker/u8:1+flush-179:012:25:350
1461215994642,3cyclictest247561-21ThreadPoolForeg08:37:390
1461222994541,2cyclictest1487452-21kworker/u8:0+flush-179:007:40:273
1461222994540,4cyclictest1644125-21/usr/share/muni10:05:143
146122099458,3cyclictest1628884-1kworker/2:0H+kblockd09:55:152
1461217994542,2cyclictest1684468-21kworker/u8:4+flush-179:012:30:201
1461217994541,3cyclictest1788526-21kworker/u8:1+flush-179:012:35:321
1461217994541,3cyclictest1429337-21kworker/u8:3+flush-179:007:15:211
1461215994541,3cyclictest1643819-21kworker/u8:4+flush-179:010:06:040
1461215994541,3cyclictest1607273-21kworker/u8:0+flush-179:009:30:320
1461215994541,3cyclictest1545570-21munin-update08:30:350
1461215994540,3cyclictest1684468-21kworker/u8:4+flush-179:011:45:010
1461215994540,3cyclictest1684468-21kworker/u8:4+flush-179:011:45:010
1461215994540,3cyclictest1601677-21kworker/u8:2+flush-179:009:45:160
1461215994540,3cyclictest1601677-21kworker/u8:2+flush-179:009:45:150
1461215994538,5cyclictest1664678-21/usr/share/muni10:25:240
1461222994437,5cyclictest1520226-21/usr/share/muni08:05:153
1461220994440,3cyclictest1669222-21kworker/u8:0+flush-179:010:40:142
1461220994440,3cyclictest1602145-21kworker/u8:3+flush-179:009:40:222
1461220994435,1cyclictest1789042-21kworker/2:1+pm12:36:572
1461220994431,12cyclictest1648668-21kworker/2:2+pm10:24:392
1461217994442,2cyclictest1535937-21kworker/u8:4+events_unbound08:39:241
1461217994440,3cyclictest1602145-21kworker/u8:3+flush-179:010:20:091
1461215994441,2cyclictest3125684-21Chrome_DevTools10:00:110
1461215994440,3cyclictest1669222-21kworker/u8:0+flush-179:010:40:230
1461215994428,14cyclictest3125726-13Chrome_ChildIOT10:45:010
1461222994338,3cyclictest3125709-13VizCompositorTh08:21:393
1461220994340,2cyclictest1555636-21kworker/2:2+pm08:41:282
1461220994340,2cyclictest1555636-21kworker/2:2+pm08:41:282
1461220994339,3cyclictest1586642-21kworker/u8:4+flush-179:009:26:282
1461220994339,3cyclictest1487452-21kworker/u8:0+flush-179:008:15:412
1461220994337,5cyclictest247560-21ThreadPoolForeg12:10:552
1461220994330,13cyclictest1540128-21kworker/2:0+pm08:51:422
1461217994340,2cyclictest1700719-21kworker/u8:2+flush-179:012:05:351
1461217994340,2cyclictest1535937-21kworker/u8:4+events_unbound08:28:301
1461217994340,2cyclictest1529885-21kworker/u8:1+flush-179:008:45:331
1461217994339,3cyclictest1763179-21munin-update12:00:341
1461217994339,3cyclictest1472330-21kworker/u8:0+events_unbound07:20:191
1461215994341,2cyclictest1684468-21kworker/u8:4+flush-179:012:00:310
1461215994340,2cyclictest3125724-21ThreadPoolForeg11:50:240
1461222994237,4cyclictest1736479-21ntpq11:30:303
1461222994234,7cyclictest1700719-21kworker/u8:2+flush-179:011:05:123
1461222994232,8cyclictest1676521-21ntpq10:35:183
1461220994227,14cyclictest1669222-21kworker/u8:0+flush-179:011:16:412
1461217994240,2cyclictest1575372-21kworker/u8:0+flush-179:009:17:011
1461217994239,2cyclictest1529885-21kworker/u8:1+flush-179:008:30:231
1461217994238,3cyclictest3125599-21python308:45:021
1461217994238,3cyclictest1602145-21kworker/u8:3+flush-179:010:30:121
1461217994238,3cyclictest1581106-21kworker/u8:3+flush-179:009:09:241
1461217994238,3cyclictest1429337-21kworker/u8:3+flush-179:007:45:251
1461215994238,3cyclictest1752218-21munin-limits11:45:370
1461215994238,3cyclictest1487641-21kworker/u8:2+events_unbound07:54:230
1461222994137,2cyclictest1058980-1kworker/3:2H+kblockd08:54:443
1461222994136,4cyclictest1612861-21/usr/share/muni09:35:163
1461220994137,4cyclictest1710361-21kworker/u8:1+flush-179:011:15:002
1461220994137,3cyclictest1500545-21ThreadPoolForeg07:45:142
1461220994118,2cyclictest1260-21snmpd12:01:232
1461217994138,2cyclictest1602145-21kworker/u8:3+flush-179:010:00:211
1461217994137,3cyclictest1602145-21kworker/u8:3+flush-179:010:28:511
1461217994135,5cyclictest1684468-21kworker/u8:4+flush-179:011:00:111
1461215994137,3cyclictest1418992-21kworker/u8:2+flush-179:007:20:120
1461215994136,3cyclictest1586642-21kworker/u8:4+flush-179:009:10:180
1461215994135,4cyclictest1488785-21/usr/share/muni07:35:160
1461222994035,4cyclictest1535937-21kworker/u8:4+flush-179:008:28:143
1461222994031,8cyclictest3125728-13Compositor09:14:353
1461222994024,14cyclictest247515-21ThreadPoolForeg08:15:243
1461220994037,2cyclictest1648668-21kworker/2:2+pm10:18:322
1461220994037,2cyclictest1643107-21kworker/2:0+pm10:05:502
1461220994037,2cyclictest1540128-21kworker/2:0+pm08:56:142
1461220994036,4cyclictest1514695-21kworker/2:1+pm08:20:352
1461220994017,22cyclictest0-21swapper/210:35:112
146122099401,16cyclictest247545-13VizCompositorTh09:45:012
146122099401,16cyclictest247545-13VizCompositorTh09:45:012
1461217994037,2cyclictest1669222-21kworker/u8:0+flush-179:010:40:111
1461217994036,3cyclictest1700719-21kworker/u8:2+flush-179:012:21:041
1461217994036,3cyclictest1535937-21kworker/u8:4+flush-179:008:52:341
1461217994036,3cyclictest1487452-21kworker/u8:0+events_unbound07:50:241
1461217994026,13cyclictest1581106-21kworker/u8:3+events_unbound09:14:391
146121799402,4cyclictest247557-21chrome10:35:061
146121799401,4cyclictest3125721-21chrome10:10:181
1461215994037,2cyclictest1710361-21kworker/u8:1+flush-179:011:20:370
1461215994036,3cyclictest1643740-21kworker/u8:1+flush-179:010:20:230
1461215994035,4cyclictest1628808-21/usr/share/muni09:50:110
146121599400,23cyclictest3125721-21chrome12:22:010
1461222993931,7cyclictest247562-13Chrome_ChildIOT11:52:583
1461222993928,5cyclictest3125688-21Chrome_ChildIOT11:25:123
1461220993937,1cyclictest1685130-21kworker/2:1+pm11:08:002
1461220993937,1cyclictest1648668-21kworker/2:2+pm10:30:342
1461220993937,1cyclictest1540128-21kworker/2:0+pm08:37:592
1461220993937,1cyclictest1540128-21kworker/2:0+pm08:30:112
1461220993937,1cyclictest1388541-21kworker/2:0+pm07:39:552
1461220993936,2cyclictest1789042-21kworker/2:1+pm12:31:102
1461220993936,2cyclictest1768111-21kworker/2:2+pm12:18:172
1461220993936,2cyclictest1685130-21kworker/2:1+pm11:40:172
1461220993936,2cyclictest1685130-21kworker/2:1+pm11:20:192
1461220993936,2cyclictest1388541-21kworker/2:0+pm07:53:342
1461220993935,3cyclictest1514695-21kworker/2:1+pm08:05:032
1461220993935,2cyclictest1388541-21kworker/2:0+pm07:26:162
1461220993935,2cyclictest1388541-21kworker/2:0+pm07:14:442
1461220993934,4cyclictest1586311-21munin-limits09:05:342
1461220993931,4cyclictest3125725-21ThreadPoolForeg09:23:302
146122099391,4cyclictest3125721-21chrome09:31:142
146122099391,37cyclictest1705535-31munin-graph11:01:072
146122099391,36cyclictest247557-21chrome11:45:192
146122099391,2cyclictest1689821-31munin-graph10:46:042
1461217993937,2cyclictest1487452-21kworker/u8:0+flush-179:007:35:331
1461217993936,2cyclictest1710361-21kworker/u8:1+flush-179:011:40:211
1461217993936,2cyclictest1710361-21kworker/u8:1+flush-179:011:40:211
1461217993935,3cyclictest1601677-21kworker/u8:2+events_unbound09:20:401
1461217993935,3cyclictest1509807-21kworker/u8:1+flush-179:008:05:151
1461215993937,1cyclictest1466468-21kworker/0:3+pm07:18:580
1461215993935,3cyclictest1710361-21kworker/u8:1+flush-179:011:25:310
1461215993935,3cyclictest1602145-21kworker/u8:3+flush-179:009:40:350
1461215993933,4cyclictest3125688-21Chrome_ChildIOT12:07:000
1461215993932,6cyclictest3125725-21ThreadPoolForeg11:35:410
1461215993931,7cyclictest1487452-21kworker/u8:0+flush-179:008:00:090
146122299389,28cyclictest0-21swapper/309:05:313
1461222993834,3cyclictest1669222-21kworker/u8:0+flush-179:010:45:003
1461222993834,3cyclictest1628226-1kworker/3:1H+kblockd12:25:033
1461222993834,2cyclictest1575727-21kworker/3:2+pm09:27:533
1461222993826,11cyclictest3125724-21ThreadPoolForeg11:58:173
1461222993825,5cyclictest247515-21ThreadPoolForeg11:40:043
1461222993824,13cyclictest247561-21ThreadPoolForeg09:57:243
1461222993819,18cyclictest3125687-21ThreadPoolForeg08:31:353
1461220993836,1cyclictest1685130-21kworker/2:1+pm11:56:332
1461220993836,1cyclictest1586698-21kworker/2:2+pm09:39:342
1461220993835,2cyclictest1685130-21kworker/2:1+pm11:33:022
1461220993835,2cyclictest1685130-21kworker/2:1+pm11:26:302
1461220993835,2cyclictest1674250-1kworker/2:2H+kblockd10:56:442
1461220993835,2cyclictest1586698-21kworker/2:2+pm09:15:212
1461220993835,2cyclictest1586698-21kworker/2:2+pm09:11:032
1461220993835,2cyclictest1561727-21kworker/2:1+pm08:48:582
1461220993835,2cyclictest1388541-21kworker/2:0+pm07:59:062
1461220993835,2cyclictest1388541-21kworker/2:0+pm07:21:512
146122099380,2cyclictest247561-21ThreadPoolForeg09:50:552
1461217993835,2cyclictest1700719-21kworker/u8:2+flush-179:011:25:301
1461217993835,2cyclictest1487452-21kworker/u8:0+flush-179:008:15:101
1461215993835,2cyclictest1529885-21kworker/u8:1+flush-179:008:45:010
1461215993835,2cyclictest1529885-21kworker/u8:1+flush-179:008:45:000
1461215993824,13cyclictest1684468-21kworker/u8:4+flush-179:012:16:560
1461215993824,13cyclictest1575372-21kworker/u8:0+flush-179:008:58:200
1461222993734,2cyclictest1628226-1kworker/3:1H+kblockd12:15:303
1461222993734,2cyclictest1628226-1kworker/3:1H+kblockd12:03:283
1461222993734,2cyclictest1628226-1kworker/3:1H+kblockd11:17:143
1461222993734,2cyclictest1058980-1kworker/3:2H+kblockd09:16:273
1461222993734,2cyclictest1058980-1kworker/3:2H+kblockd08:39:493
1461222993733,3cyclictest1058980-1kworker/3:2H+kblockd09:45:143
1461222993733,3cyclictest1058980-1kworker/3:2H+kblockd09:45:143
1461222993733,3cyclictest1058980-1kworker/3:2H+kblockd07:13:153
1461222993733,2cyclictest1058980-1kworker/3:2H+kblockd09:35:013
1461222993733,2cyclictest1058980-1kworker/3:2H+kblockd08:45:373
1461222993725,11cyclictest3125648-13Chrome_IOThread09:23:443
1461222993724,11cyclictest0-21swapper/311:45:203
1461220993736,1cyclictest1685130-21kworker/2:1+pm11:36:292
1461220993735,1cyclictest1685130-21kworker/2:1+pm11:51:002
1461220993734,2cyclictest1540128-21kworker/2:0+pm08:27:292
1461220993734,2cyclictest1514695-21kworker/2:1+pm08:00:362
1461220993734,2cyclictest1329421-1kworker/2:1H+kblockd08:11:192
146122099371,16cyclictest1787799-21ntpq12:20:302
1461217993734,2cyclictest896495-1kworker/1:1H+kblockd08:11:511
1461217993733,3cyclictest1684468-21kworker/u8:4+flush-179:012:10:241
1461217993733,3cyclictest1509807-21kworker/u8:1+flush-179:008:00:331
1461217993726,10cyclictest1778448-21kworker/u8:0+flush-179:012:15:291
1461215993734,2cyclictest1612238-1kworker/0:1H+kblockd10:17:160
1461215993733,3cyclictest247560-21ThreadPoolForeg11:10:290
1461215993733,2cyclictest1612238-1kworker/0:1H+kblockd12:35:010
1461215993733,2cyclictest1612238-1kworker/0:1H+kblockd10:54:240
1461215993732,1cyclictest171rcu_preempt08:28:310
146121599370,36cyclictest3125728-13Compositor09:25:150
146121599370,36cyclictest3125721-21chrome10:55:240
1461222993634,1cyclictest1058980-1kworker/3:2H+kblockd07:45:153
1461222993633,2cyclictest3125721-21chrome07:27:063
1461222993633,2cyclictest1628226-1kworker/3:1H+kblockd12:12:593
1461222993633,2cyclictest1628226-1kworker/3:1H+kblockd10:22:353
1461222993633,2cyclictest1575727-21kworker/3:2+pm12:07:393
1461222993633,2cyclictest1058980-1kworker/3:2H+kblockd08:04:253
1461222993633,2cyclictest1058980-1kworker/3:2H+kblockd07:15:093
1461222993632,2cyclictest1628226-1kworker/3:1H+kblockd11:35:573
1461222993631,4cyclictest1669785-21/usr/share/muni10:30:193
1461222993630,5cyclictest1628226-1kworker/3:1H+kblockd11:01:593
1461217993634,1cyclictest896495-1kworker/1:1H+kblockd08:42:181
1461217993634,1cyclictest1535415-21kworker/1:3+pm08:24:291
1461217993633,2cyclictest1429337-21kworker/u8:3+flush-179:007:40:141
1461217993632,3cyclictest1737044-21kworker/u8:0+flush-179:011:55:081
1461217993629,5cyclictest1628804-21/usr/share/muni09:50:011
1461215993634,1cyclictest944639-1kworker/0:2H+kblockd07:30:180
1461215993633,2cyclictest944639-1kworker/0:2H+kblockd09:04:480
1461215993633,2cyclictest1788526-21kworker/u8:1+events_unbound12:30:240
1461215993632,3cyclictest1565993-21kworker/u8:2+flush-179:009:05:050
1461215993632,2cyclictest1612238-1kworker/0:1H+kblockd09:35:580
1461215993629,5cyclictest247561-21ThreadPoolForeg11:30:040
1461215993624,1cyclictest0-21swapper/007:59:250
1461222993533,1cyclictest1628226-1kworker/3:1H+kblockd10:45:553
1461222993533,1cyclictest1058980-1kworker/3:2H+kblockd09:41:353
1461222993532,2cyclictest1628226-1kworker/3:1H+kblockd12:38:013
1461222993532,2cyclictest1628226-1kworker/3:1H+kblockd12:30:563
1461222993532,2cyclictest1628226-1kworker/3:1H+kblockd12:21:323
1461222993532,2cyclictest1628226-1kworker/3:1H+kblockd10:55:213
1461222993532,2cyclictest1628226-1kworker/3:1H+kblockd10:25:053
1461222993527,7cyclictest1575727-21kworker/3:2+pm10:10:143
1461222993527,7cyclictest1260-21snmpd07:20:493
1461217993532,2cyclictest896495-1kworker/1:1H+kblockd09:56:011
1461217993531,3cyclictest1602145-21kworker/u8:3+flush-179:010:57:011
146121799352,5cyclictest247557-21chrome11:06:171
1461215993533,2cyclictest1612238-1kworker/0:1H+kblockd11:55:040
1461215993533,1cyclictest944639-1kworker/0:2H+kblockd07:28:000
1461215993532,2cyclictest944639-1kworker/0:2H+kblockd09:20:350
1461215993532,2cyclictest1612238-1kworker/0:1H+kblockd09:55:520
1461215993531,3cyclictest1529885-21kworker/u8:1+events_unbound08:50:090
1461215993531,3cyclictest1487452-21kworker/u8:0+flush-179:008:07:540
1461222993431,2cyclictest1628226-1kworker/3:1H+kblockd11:24:003
1461217993431,2cyclictest1737044-21kworker/u8:0+flush-179:011:46:341
1461215993430,3cyclictest1700719-21kworker/u8:2+flush-179:012:10:310
1461222993330,2cyclictest1260-21snmpd08:10:293
1461222993328,3cyclictest1628226-1kworker/3:1H+kblockd10:17:173
1461222993327,5cyclictest1643413-31munin-html10:00:423
1461222993322,2cyclictest3125627-21ChromeDriver00:55:193
1461217993323,9cyclictest1571963-21munin-update08:55:011
1461215993330,2cyclictest1260-21snmpd11:19:270
1461215993327,4cyclictest1561308-21ThreadPoolForeg08:45:130
146122299329,12cyclictest0-21swapper/307:30:083
1461222993220,3cyclictest3125684-21Chrome_DevTools09:50:043
1461222993220,2cyclictest1260-21snmpd08:40:183
1461222993220,2cyclictest1260-21snmpd08:40:183
1461217993228,3cyclictest3125726-13Chrome_ChildIOT09:26:321
1461215993230,1cyclictest1612238-1kworker/0:1H+kblockd10:33:590
1461215993229,2cyclictest944639-1kworker/0:2H+kblockd08:17:020
1461215993228,3cyclictest1429337-21kworker/u8:3+flush-179:007:10:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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