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2025-07-02 - 18:15
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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 Wed Jul 02, 2025 12:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18680932221172,40sleep30-21swapper/307:07:493
18680792208185,13sleep00-21swapper/007:07:370
18682352204181,13sleep10-21swapper/107:09:361
18680002202173,19sleep20-21swapper/207:06:402
186846099960,95cyclictest1965660-21chrome08:45:011
1868462996357,4cyclictest2169626-21munin-node12:05:113
1868460995750,5cyclictest2102321-21/usr/share/muni11:00:011
1868460995750,5cyclictest2102321-21/usr/share/muni11:00:011
1868460995350,2cyclictest1804538-21kworker/u8:2+flush-179:007:15:401
1868462995235,5cyclictest76405-21systemd-journal12:15:003
1868459995247,3cyclictest1965720-21Chrome_ChildIOT08:45:350
1868461995147,3cyclictest2025176-21kworker/u8:0+flush-179:010:15:382
1868460995147,3cyclictest1990272-21kworker/u8:3+flush-179:009:30:391
1868460995147,3cyclictest1914883-21kworker/u8:0+flush-179:008:21:181
1868460995147,3cyclictest1804538-21kworker/u8:2+flush-179:007:21:381
1868459995147,3cyclictest1914883-21kworker/u8:0+flush-179:008:21:320
1868462995046,3cyclictest1914883-21kworker/u8:0+events_unbound07:55:153
1868459995046,3cyclictest1893919-21kworker/u8:1+flush-179:008:30:060
1868459994943,3cyclictest2087220-21CacheThread_Blo10:45:010
1868462994844,3cyclictest40554-21ChromeDriver00:55:193
1868461994846,1cyclictest2015623-21kworker/2:3+pm09:39:112
1868460994844,3cyclictest2025176-21kworker/u8:0+flush-179:010:05:091
1868462994742,4cyclictest1904293-31munin-html07:40:493
1868461994732,2cyclictest2121878-21kworker/2:1+pm11:38:432
19304882460,1chrt1930485-21snmp_ryswitch2.08:10:040
1868461994644,1cyclictest0-21swapper/208:45:022
1868461994643,2cyclictest2182844-21kworker/2:0+pm12:25:012
1868459994630,15cyclictest1260-21snmpd09:32:590
19859192450,2sleep20-21swapper/209:05:002
1868461994542,2cyclictest2030344-21kworker/2:0+pm10:21:192
1868460994542,2cyclictest2132595-21kworker/u8:1+flush-179:011:31:421
1868460994542,2cyclictest2132595-21kworker/u8:1+flush-179:011:31:411
1868460994540,3cyclictest2168684-21latency_hist12:05:011
1868459994541,3cyclictest40654-21chrome11:45:010
1868461994440,3cyclictest2005632-21latency_hist09:25:012
1868462994336,6cyclictest40658-21ThreadPoolForeg10:40:003
1868462994330,1cyclictest105470-21isc-net-000009:14:423
1868461994339,3cyclictest1888917-21kworker/u8:3+events_unbound07:50:002
1868460994339,3cyclictest2019825-21kworker/u8:4+flush-179:009:45:231
1868460994339,3cyclictest2000396-21kworker/u8:4+flush-179:009:20:111
1868459994336,5cyclictest2066799-21/usr/share/muni10:25:190
1868459994336,5cyclictest1884548-21/usr/share/muni07:25:110
1868459994336,5cyclictest1884548-21/usr/share/muni07:25:100
186846199425,25cyclictest0-21swapper/208:06:202
1868461994240,1cyclictest1848034-21kworker/2:1+pm07:45:012
1868461994239,2cyclictest2096724-21kworker/u8:1+events_unbound11:11:032
1868460994238,3cyclictest1914883-21kworker/u8:0+flush-179:007:55:161
1868459994230,11cyclictest2000980-1kworker/0:0H+kblockd12:10:120
1868462994136,4cyclictest40658-21ThreadPoolForeg09:35:163
1868462994128,12cyclictest1229789-1kworker/3:0H+kblockd09:45:313
1868460994139,1cyclictest2137556-21kworker/1:0+pm12:18:461
1868460994138,2cyclictest2157979-21kworker/u8:4+flush-179:012:20:311
1868460994138,2cyclictest2106837-21kworker/u8:3+events_unbound11:25:091
1868460994138,2cyclictest1980313-21kworker/u8:2+flush-179:009:05:301
1868460994137,3cyclictest2153174-21gpgv11:50:001
1868460994137,3cyclictest1997069-21apt-get09:15:151
1868460994133,7cyclictest2019825-21kworker/u8:4+flush-179:010:30:221
1868459994133,6cyclictest40612-21ThreadPoolForeg11:56:200
1868459994132,7cyclictest2000980-1kworker/0:0H+kblockd10:40:010
1868462994035,4cyclictest1888541-31munin-html07:25:413
1868462994035,4cyclictest1888541-31munin-html07:25:413
1868462994028,1cyclictest1260-21snmpd10:05:063
1868462994028,11cyclictest2096724-21kworker/u8:1+events_unbound11:11:373
1868461994038,1cyclictest1959186-21kworker/2:1+pm08:58:472
1868461994037,2cyclictest2121878-21kworker/2:1+pm11:41:512
1868461994037,2cyclictest2030344-21kworker/2:0+pm10:03:212
1868461994037,2cyclictest1959186-21kworker/2:1+pm08:45:372
1868461994037,2cyclictest1911476-21kworker/2:0+pm08:10:032
1868461994037,2cyclictest1911476-21kworker/2:0+pm07:55:372
1868461994036,2cyclictest1848034-21kworker/2:1+pm07:16:052
1868460994037,2cyclictest2066175-21kworker/u8:2+flush-179:010:46:361
1868460994037,2cyclictest1893919-21kworker/u8:1+flush-179:008:07:001
1868460994036,3cyclictest2157979-21kworker/u8:4+flush-179:012:07:411
1868460994036,3cyclictest1924448-31munin-graph08:01:171
1868459994035,3cyclictest1640068-1kworker/0:2H+kblockd09:10:020
1868459994033,5cyclictest2015830-21/usr/share/muni09:35:210
1868459994031,7cyclictest2179023-21/usr/share/muni12:15:150
20794252390,1sleep00-21swapper/010:35:190
1868462993937,1cyclictest1873091-21kworker/3:0+pm07:54:213
1868462993936,2cyclictest1873091-21kworker/3:0+pm07:33:003
1868462993934,4cyclictest2019825-21kworker/u8:4+flush-179:010:26:193
1868461993937,1cyclictest2182844-21kworker/2:0+pm12:22:312
1868461993937,1cyclictest2121878-21kworker/2:1+pm12:11:402
1868461993937,1cyclictest2121878-21kworker/2:1+pm12:01:252
1868461993937,1cyclictest1980429-21kworker/2:0+pm09:04:442
1868461993936,2cyclictest2121878-21kworker/2:1+pm11:52:162
1868461993936,2cyclictest2121878-21kworker/2:1+pm11:26:192
1868461993936,2cyclictest2030344-21kworker/2:0+pm10:35:322
1868461993936,2cyclictest1959186-21kworker/2:1+pm08:50:172
1868461993936,2cyclictest1914883-21kworker/u8:0+flush-179:008:35:302
1868461993936,2cyclictest1911476-21kworker/2:0+pm08:31:232
1868461993936,2cyclictest1848034-21kworker/2:1+pm07:50:112
1868461993936,2cyclictest1848034-21kworker/2:1+pm07:36:432
1868461993936,2cyclictest1848034-21kworker/2:1+pm07:26:512
1868461993936,2cyclictest1848034-21kworker/2:1+pm07:26:502
1868461993934,4cyclictest2027006-21ThreadPoolForeg09:45:122
1868461993934,3cyclictest1655090-1kworker/2:2H+kblockd10:43:252
186846199391,12cyclictest2152756-31munin-graph11:45:542
1868460993936,2cyclictest1914883-21kworker/u8:0+flush-179:008:50:331
1868460993935,3cyclictest1990272-21kworker/u8:3+events_unbound09:26:121
1868459993936,2cyclictest2000980-1kworker/0:0H+kblockd12:26:360
1868459993936,2cyclictest1930904-21kworker/0:0+pm08:26:310
1868459993935,3cyclictest2112254-21kworker/0:0+pm12:04:190
1868459993932,5cyclictest40612-21ThreadPoolForeg09:41:310
1868462993836,1cyclictest1995656-21kworker/3:1+pm09:32:563
1868462993834,3cyclictest1229789-1kworker/3:0H+kblockd11:19:113
1868462993833,4cyclictest1229789-1kworker/3:0H+kblockd11:55:163
1868462993833,3cyclictest1229789-1kworker/3:0H+kblockd09:28:113
1868462993832,4cyclictest1949438-31munin-html08:25:353
1868462993829,8cyclictest1260-21snmpd07:36:273
1868461993837,1cyclictest2030344-21kworker/2:0+pm09:51:162
1868461993836,1cyclictest2030344-21kworker/2:0+pm10:31:132
1868461993835,2cyclictest2182844-21kworker/2:0+pm12:33:542
1868461993835,2cyclictest2121878-21kworker/2:1+pm12:06:042
1868461993835,2cyclictest2121878-21kworker/2:1+pm11:58:412
1868461993835,2cyclictest2121878-21kworker/2:1+pm11:32:242
1868461993835,2cyclictest2121878-21kworker/2:1+pm11:32:242
1868461993835,2cyclictest2030344-21kworker/2:0+pm11:05:112
1868461993835,2cyclictest2030344-21kworker/2:0+pm10:26:172
1868461993835,2cyclictest1911476-21kworker/2:0+pm08:01:342
1868461993835,2cyclictest1848034-21kworker/2:1+pm07:12:002
1868461993831,6cyclictest40657-21ThreadPoolForeg10:56:002
1868461993831,6cyclictest40657-21ThreadPoolForeg10:56:002
1868460993836,1cyclictest2030781-21kworker/1:0+pm09:59:011
186846099380,1cyclictest0-21swapper/109:40:561
1868459993835,2cyclictest1950204-21kworker/0:2+pm09:24:000
1868459993834,3cyclictest2000980-1kworker/0:0H+kblockd11:02:560
1868459993834,2cyclictest2000980-1kworker/0:0H+kblockd11:55:010
1868459993829,8cyclictest1260-21snmpd07:45:480
186845999381,36cyclictest40661-13Compositor10:05:190
1868462993734,2cyclictest2127695-21kworker/3:1+pm11:33:453
1868462993734,2cyclictest2127695-21kworker/3:1+pm11:33:453
1868462993734,2cyclictest2097135-21kworker/3:0+pm11:20:163
1868462993734,2cyclictest1873091-21kworker/3:0+pm09:18:163
1868462993734,2cyclictest1873091-21kworker/3:0+pm09:08:353
1868462993734,2cyclictest1229789-1kworker/3:0H+kblockd07:23:423
1868462993734,2cyclictest1229789-1kworker/3:0H+kblockd07:11:133
1868462993733,3cyclictest1229789-1kworker/3:0H+kblockd11:00:063
1868462993722,14cyclictest2071234-21kworker/u8:0+flush-179:010:31:093
1868462993722,13cyclictest2087217-21ThreadPoolForeg10:45:013
1868461993735,1cyclictest2182844-21kworker/2:0+pm12:35:052
1868461993735,1cyclictest2030344-21kworker/2:0+pm11:18:492
1868461993735,1cyclictest1848034-21kworker/2:1+pm07:30:312
1868461993735,1cyclictest1848034-21kworker/2:1+pm07:22:492
1868461993734,2cyclictest2121878-21kworker/2:1+pm12:17:262
1868461993734,2cyclictest2030344-21kworker/2:0+pm10:45:022
1868461993734,2cyclictest2015623-21kworker/2:3+pm09:40:022
1868461993734,2cyclictest1911476-21kworker/2:0+pm08:16:262
1868461993734,2cyclictest1655090-1kworker/2:2H+kblockd11:20:342
1868461993734,2cyclictest1655090-1kworker/2:2H+kblockd10:50:152
1868461993734,2cyclictest1655090-1kworker/2:2H+kblockd08:22:172
1868461993732,4cyclictest2066175-21kworker/u8:2+flush-179:011:00:402
1868460993735,1cyclictest2137556-21kworker/1:0+pm12:36:221
1868460993735,1cyclictest2137556-21kworker/1:0+pm11:37:411
1868460993734,2cyclictest125343-1kworker/1:0H+kblockd10:27:211
1868460993734,2cyclictest125343-1kworker/1:0H+kblockd08:17:051
1868460993733,3cyclictest2019825-21kworker/u8:4+flush-179:009:35:411
1868460993733,3cyclictest1965121-21kworker/u8:1+flush-179:010:20:141
1868459993734,2cyclictest2000980-1kworker/0:0H+kblockd12:07:020
1868459993734,2cyclictest2000980-1kworker/0:0H+kblockd11:43:000
1868459993734,2cyclictest2000980-1kworker/0:0H+kblockd10:56:560
1868459993734,2cyclictest2000980-1kworker/0:0H+kblockd10:56:560
1868459993734,2cyclictest1640068-1kworker/0:2H+kblockd09:19:290
1868459993734,2cyclictest1640068-1kworker/0:2H+kblockd08:50:160
1868459993733,3cyclictest2000980-1kworker/0:0H+kblockd11:08:010
1868459993733,3cyclictest1965121-21kworker/u8:1+flush-179:010:32:170
1868459993731,4cyclictest2026205-21ThreadPoolForeg09:45:350
1868462993634,1cyclictest1229789-1kworker/3:0H+kblockd12:28:113
1868462993634,1cyclictest1229789-1kworker/3:0H+kblockd08:42:563
1868462993633,2cyclictest1229789-1kworker/3:0H+kblockd12:32:513
1868462993633,2cyclictest1229789-1kworker/3:0H+kblockd12:00:553
1868462993632,3cyclictest1229789-1kworker/3:0H+kblockd08:32:323
1868461993615,19cyclictest0-21swapper/210:06:062
1868460993634,1cyclictest125343-1kworker/1:0H+kblockd11:10:481
1868460993634,1cyclictest125343-1kworker/1:0H+kblockd08:30:001
1868460993633,3cyclictest1965121-21kworker/u8:1+flush-179:010:20:001
1868460993632,3cyclictest1893919-21kworker/u8:1+events_unbound08:15:001
1868459993633,2cyclictest2000980-1kworker/0:0H+kblockd09:29:560
1868459993633,2cyclictest1640068-1kworker/0:2H+kblockd08:05:350
1868459993632,3cyclictest2000980-1kworker/0:0H+kblockd12:22:170
1868459993630,5cyclictest1260-21snmpd09:05:360
1868459993625,10cyclictest1260-21snmpd10:03:080
1868459993623,12cyclictest1260-21snmpd11:18:550
1868462993533,1cyclictest2127695-21kworker/3:1+pm11:29:403
1868462993533,1cyclictest1229789-1kworker/3:0H+kblockd10:17:063
1868462993532,2cyclictest1229789-1kworker/3:0H+kblockd12:18:013
1868462993532,2cyclictest1229789-1kworker/3:0H+kblockd10:21:053
1868462993532,2cyclictest1229789-1kworker/3:0H+kblockd09:41:253
1868462993532,2cyclictest1229789-1kworker/3:0H+kblockd08:49:313
1868462993531,2cyclictest1995656-21kworker/3:1+pm09:25:013
1868462993531,2cyclictest1260-21snmpd08:38:153
1868462993531,2cyclictest1229789-1kworker/3:0H+kblockd08:20:013
186846299351,32cyclictest40654-21chrome11:54:013
1868461993533,1cyclictest2030344-21kworker/2:0+pm10:10:162
1868461993533,1cyclictest2030344-21kworker/2:0+pm10:10:152
1868461993533,1cyclictest1980429-21kworker/2:0+pm09:31:212
1868461993533,1cyclictest1911476-21kworker/2:0+pm08:28:352
1868461993532,2cyclictest1980429-21kworker/2:0+pm09:15:222
1868460993533,1cyclictest125343-1kworker/1:0H+kblockd08:39:551
1868460993532,2cyclictest2019825-21kworker/u8:4+flush-179:009:50:281
1868460993532,2cyclictest125343-1kworker/1:0H+kblockd11:50:041
1868460993532,2cyclictest125343-1kworker/1:0H+kblockd09:00:041
1868460993531,3cyclictest2183451-21kworker/u8:1+flush-179:012:30:131
1868459993533,1cyclictest1640068-1kworker/0:2H+kblockd08:03:170
1868459993532,2cyclictest2000980-1kworker/0:0H+kblockd11:35:230
1868459993532,2cyclictest2000980-1kworker/0:0H+kblockd10:17:040
1868459993532,2cyclictest1640068-1kworker/0:2H+kblockd09:04:500
1868459993532,2cyclictest1640068-1kworker/0:2H+kblockd07:15:150
1868459993531,3cyclictest2000980-1kworker/0:0H+kblockd12:37:120
1868459993528,6cyclictest40612-21ThreadPoolForeg08:16:570
1868459993528,5cyclictest1883280-21ntpq07:20:250
1868459993526,8cyclictest1260-21snmpd07:39:070
1868462993431,2cyclictest1229789-1kworker/3:0H+kblockd10:40:183
1868462993431,2cyclictest1229789-1kworker/3:0H+kblockd08:01:133
1868462993429,4cyclictest2132595-21kworker/u8:1+flush-179:011:35:233
186846199340,12cyclictest0-21swapper/209:11:092
1868460993432,1cyclictest1950436-21kworker/1:0+pm09:12:071
1868460993432,1cyclictest1853286-21kworker/1:1+pm07:51:461
1868460993432,1cyclictest1853286-21kworker/1:1+pm07:13:011
1868460993432,1cyclictest125343-1kworker/1:0H+kblockd12:10:491
1868460993432,1cyclictest125343-1kworker/1:0H+kblockd11:40:341
1868460993432,1cyclictest125343-1kworker/1:0H+kblockd07:36:331
1868460993431,2cyclictest125343-1kworker/1:0H+kblockd11:57:161
1868460993430,3cyclictest2066175-21kworker/u8:2+flush-179:010:40:241
1868460993430,2cyclictest1260-21snmpd10:37:581
1868459993432,1cyclictest2000980-1kworker/0:0H+kblockd09:55:190
1868459993432,1cyclictest1817789-21kworker/0:1+pm07:54:170
1868459993431,2cyclictest2000980-1kworker/0:0H+kblockd11:22:560
1868459993431,2cyclictest2000980-1kworker/0:0H+kblockd10:50:330
1868459993431,2cyclictest2000980-1kworker/0:0H+kblockd10:20:330
1868459993427,5cyclictest1903990-31munin-html07:40:350
1868459993425,8cyclictest1260-21snmpd09:54:510
1868459993421,12cyclictest40657-21ThreadPoolForeg07:57:100
1868462993330,2cyclictest1260-21snmpd12:24:373
1868460993331,1cyclictest125343-1kworker/1:0H+kblockd10:52:251
1868460993330,2cyclictest1870111-21kworker/u8:0+flush-179:007:30:161
1868460993330,2cyclictest1260-21snmpd11:16:101
1868460993330,2cyclictest125343-1kworker/1:0H+kblockd11:21:161
1868460993330,2cyclictest125343-1kworker/1:0H+kblockd08:25:011
1868460993329,3cyclictest105470-21isc-net-000007:47:421
1868460993327,4cyclictest1888927-31munin-graph07:26:171
1868460993327,4cyclictest1888927-31munin-graph07:26:171
1868459993330,2cyclictest1260-21snmpd10:10:210
1868459993330,2cyclictest1260-21snmpd10:10:210
1868459993327,5cyclictest1640068-1kworker/0:2H+kblockd07:34:440
1868462993230,1cyclictest1873091-21kworker/3:0+pm08:06:403
1868462993230,1cyclictest1260-21snmpd11:46:023
1868462993230,1cyclictest1260-21snmpd10:50:583
1868462993230,1cyclictest1229789-1kworker/3:0H+kblockd11:41:403
1868462993230,1cyclictest1229789-1kworker/3:0H+kblockd09:50:583
1868462993230,1cyclictest1229789-1kworker/3:0H+kblockd08:56:093
1868462993229,2cyclictest1229789-1kworker/3:0H+kblockd12:36:083
1868462993229,2cyclictest1229789-1kworker/3:0H+kblockd09:55:103
1868462993229,2cyclictest1229789-1kworker/3:0H+kblockd09:00:543
1868462993229,2cyclictest1229789-1kworker/3:0H+kblockd07:18:173
1868461993229,2cyclictest1655090-1kworker/2:2H+kblockd09:55:032
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