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2025-12-04 - 19:15
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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 Thu Dec 04, 2025 12:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16181072219171,38sleep20-21swapper/207:08:102
16180002198174,14sleep00-21swapper/007:06:520
16182492195168,18sleep30-21swapper/307:09:563
16179052181157,14sleep10-21swapper/107:06:091
161846399775,71cyclictest1696010-21kworker/u8:2+efi_rts_wq08:39:163
1618458997560,2cyclictest1655469-21snmp_wlanswitch07:45:011
1618458996954,13cyclictest1841570-21snmp_ryswitch2.10:45:021
1618456996863,4cyclictest1644787-21kworker/u8:4+events_unbound07:35:350
1618462996662,3cyclictest1846521-21kworker/u8:5+events_unbound11:05:182
1618462996359,3cyclictest1854274-21kworker/u8:2+flush-179:011:10:362
1618463996258,2cyclictest3125721-21chrome08:45:033
1618462996155,4cyclictest1928880-21kworker/u8:0+events_unbound12:30:362
1618456996156,4cyclictest1836369-21/usr/share/muni10:40:100
1618463996055,4cyclictest1893392-21/usr/share/muni11:35:033
1618462996057,2cyclictest1675372-21kworker/u8:4+events_unbound08:25:002
1618462996055,4cyclictest1820650-21kworker/u8:0+events_unbound10:30:262
1618456996057,2cyclictest1794288-21kworker/u8:1+flush-179:010:10:360
1618456996057,2cyclictest1675372-21kworker/u8:4+flush-179:008:30:100
1618456996056,3cyclictest1846521-21kworker/u8:5+flush-179:012:05:000
1618462995955,3cyclictest1719018-21kworker/u8:3+events_unbound08:49:102
1618456995954,4cyclictest3125725-21ThreadPoolForeg11:40:000
1618456995853,4cyclictest1696010-21kworker/u8:2+flush-179:008:40:140
1618456995754,2cyclictest1767462-21kworker/u8:3+flush-179:009:55:360
1618462995652,3cyclictest1911529-21kworker/u8:3+flush-179:012:00:362
1618462995651,4cyclictest1579015-21kworker/u8:1+flush-179:007:15:212
1618456995651,3cyclictest1794288-21kworker/u8:1+events_unbound10:45:350
1618456995651,3cyclictest1670611-21kworker/u8:2+events_unbound08:10:350
1618456995551,3cyclictest1921649-21kworker/u8:2+events_unbound12:30:130
1618463995449,4cyclictest1934308-21apt-get12:15:003
1618462995451,2cyclictest1846521-21kworker/u8:5+events_unbound11:30:242
1618462995451,2cyclictest1794288-21kworker/u8:1+flush-179:011:01:442
1618462995450,3cyclictest1726832-21kworker/u8:2+flush-179:009:20:002
1618462995450,3cyclictest1696010-21kworker/u8:2+events_unbound08:35:152
1618456995450,3cyclictest1675372-21kworker/u8:4+flush-179:008:20:250
1618463995349,3cyclictest1903802-21CacheThread_Blo11:45:013
1618463995349,3cyclictest1892915-21gpgv11:35:013
1618462995349,3cyclictest1767462-21kworker/u8:3+events_unbound10:10:002
1618462995349,3cyclictest1767462-21kworker/u8:3+events_unbound10:10:002
1618462995349,3cyclictest1757107-21kworker/u8:1+flush-179:009:30:342
1618462995349,3cyclictest1665477-21kworker/u8:1+events_unbound08:15:322
1618458995345,6cyclictest3125725-21ThreadPoolForeg10:45:001
1618456995347,4cyclictest1726832-21kworker/u8:2+flush-179:009:17:030
1618463995249,2cyclictest1810184-21apt-get10:15:053
1618463995249,2cyclictest1810184-21apt-get10:15:043
1618462995249,2cyclictest1903848-26chrome11:45:022
1618462995249,2cyclictest1742549-21kworker/u8:1+events_unbound09:10:022
1618462995248,3cyclictest1757107-21kworker/u8:1+flush-179:009:35:382
1618462995247,4cyclictest1929456-21/usr/share/muni12:10:042
1618456995249,2cyclictest1597091-21kworker/u8:2+flush-179:007:25:360
1618456995248,3cyclictest1757107-21kworker/u8:1+flush-179:009:20:270
1618456995247,4cyclictest1794288-21kworker/u8:1+flush-179:010:20:170
1618462995148,2cyclictest1719018-21kworker/u8:3+events_unbound08:55:192
1618462995144,2cyclictest1665477-21kworker/u8:1+events_unbound08:10:292
1618458995144,6cyclictest247561-21ThreadPoolForeg07:34:241
1618456995148,2cyclictest1767462-21kworker/u8:3+events_unbound11:05:080
1618456995147,3cyclictest1711885-21kworker/u8:0+events_unbound10:00:300
1618456995146,3cyclictest1767462-21kworker/u8:3+flush-179:009:45:300
1618462995046,3cyclictest1921649-21kworker/u8:2+flush-179:012:05:372
1618462995044,5cyclictest3125725-21ThreadPoolForeg10:00:102
1618462995044,2cyclictest1607376-21kworker/u8:5+events_unbound07:31:112
1618456995046,3cyclictest1794288-21kworker/u8:1+flush-179:010:50:110
1618456995046,3cyclictest1670611-21kworker/u8:2+flush-179:008:05:170
1618463994942,5cyclictest3125725-21ThreadPoolForeg12:15:303
1618462994945,3cyclictest1846521-21kworker/u8:5+flush-179:011:35:162
1618462994944,4cyclictest1645113-21/usr/share/muni07:35:092
1618456994946,2cyclictest1854274-21kworker/u8:2+flush-179:011:40:180
1618456994943,2cyclictest1846521-21kworker/u8:5+events_unbound11:50:260
1618463994836,11cyclictest247516-21Chrome_ChildIOT08:10:143
1618462994846,2cyclictest1846521-21kworker/u8:5+flush-179:011:21:052
1618462994846,2cyclictest1846521-21kworker/u8:5+flush-179:011:21:052
1618462994844,3cyclictest1846521-21kworker/u8:5+events_unbound11:41:472
1618462994844,3cyclictest1767462-21kworker/u8:3+events_unbound09:55:132
1618462994844,3cyclictest1654229-21kworker/u8:0+flush-179:007:52:542
1618462994844,3cyclictest1644784-21kworker/u8:3+events_unbound07:47:302
1618456994845,2cyclictest1928880-21kworker/u8:0+flush-179:012:15:290
1618456994845,2cyclictest1690794-21kworker/u8:0+flush-179:008:25:100
1618456994844,3cyclictest1871621-21kworker/u8:0+flush-179:011:20:090
1618456994844,3cyclictest1871621-21kworker/u8:0+flush-179:011:20:080
1618456994844,3cyclictest1696010-21kworker/u8:2+flush-179:008:35:170
1618456994844,2cyclictest1892804-21kworker/u8:1+flush-179:012:00:000
1618456994843,4cyclictest1794288-21kworker/u8:1+events_unbound10:31:040
1618456994840,3cyclictest1921649-21kworker/u8:2+flush-179:012:25:060
161845699480,46cyclictest3125630-13chrome07:20:010
1618463994742,4cyclictest1826206-21/usr/share/muni10:30:083
1618463994741,4cyclictest1640026-21/usr/share/muni07:30:043
1618463994732,13cyclictest1169670-1kworker/3:1H+kblockd08:20:443
1618462994743,3cyclictest1767462-21kworker/u8:3+flush-179:010:20:342
1618462994743,3cyclictest1665477-21kworker/u8:1+events_unbound08:28:362
1618462994740,3cyclictest1794288-21kworker/u8:1+events_unbound10:57:392
1618458994744,2cyclictest591032-1kworker/1:2H+kblockd12:02:111
1618458994738,7cyclictest1805351-21/usr/share/muni10:10:091
1618456994743,3cyclictest1767462-21kworker/u8:3+flush-179:011:15:300
1618456994743,3cyclictest1726832-21kworker/u8:2+events_unbound09:30:130
1618456994743,3cyclictest1644784-21kworker/u8:3+flush-179:007:45:120
1618456994742,4cyclictest1820650-21kworker/u8:0+flush-179:010:38:230
18178122460,2sleep11816032-21/usr/share/muni10:20:171
1618463994642,3cyclictest1775369-21apt-get09:40:133
1618462994643,2cyclictest1757107-21kworker/u8:1+events_unbound09:40:042
1618462994642,3cyclictest1846521-21kworker/u8:5+events_unbound12:15:122
1618462994642,3cyclictest1767462-21kworker/u8:3+flush-179:011:15:492
1618462994641,3cyclictest1835730-21kworker/u8:2+events_unbound10:40:292
1618458994643,2cyclictest591032-1kworker/1:2H+kblockd10:53:451
1618458994641,4cyclictest1892804-21kworker/u8:1+flush-179:011:55:101
1618456994642,3cyclictest1921649-21kworker/u8:2+flush-179:012:05:330
1618456994642,3cyclictest1767462-21kworker/u8:3+flush-179:011:30:540
1618456994642,3cyclictest1711885-21kworker/u8:0+flush-179:009:13:050
1618456994642,3cyclictest1670611-21kworker/u8:2+events_unbound08:15:160
19180982450,1chrt1918097-21ntpq11:55:292
1618463994542,2cyclictest1665477-21kworker/u8:1+flush-179:008:30:053
1618463994529,15cyclictest1607376-21kworker/u8:5+flush-179:007:20:163
1618462994542,2cyclictest1711885-21kworker/u8:0+events_unbound09:50:152
1618462994542,2cyclictest1711885-21kworker/u8:0+events_unbound09:25:232
1618462994541,3cyclictest1794288-21kworker/u8:1+events_unbound10:10:562
1618462994531,3cyclictest1700970-21kworker/2:2+pm10:50:162
1618458994537,5cyclictest1934825-21/usr/share/muni12:15:191
1618456994541,3cyclictest1871621-21kworker/u8:0+events_unbound11:25:300
1618456994510,34cyclictest1254-21openvpn10:15:170
1618456994510,34cyclictest1254-21openvpn10:15:170
1618463994441,2cyclictest1711885-21kworker/u8:0+flush-179:009:24:583
1618463994439,3cyclictest1882895-21/usr/share/muni11:25:053
1618463994431,12cyclictest3125709-13VizCompositorTh07:25:533
1618462994441,2cyclictest1783901-21kworker/u8:2+events_unbound10:17:012
1618462994441,2cyclictest1783901-21kworker/u8:2+events_unbound10:17:012
1618462994441,2cyclictest1675372-21kworker/u8:4+flush-179:008:30:172
1618462994441,2cyclictest1607376-21kworker/u8:5+events_unbound07:11:372
1618462994440,3cyclictest1820650-21kworker/u8:0+flush-179:010:40:012
1618458994437,5cyclictest1882889-21/usr/share/muni11:25:011
1618456994441,2cyclictest1846521-21kworker/u8:5+events_unbound11:00:300
1618456994440,3cyclictest1767462-21kworker/u8:3+flush-179:010:25:330
1618456994440,3cyclictest1711885-21kworker/u8:0+events_unbound09:45:000
1618456994440,3cyclictest1665477-21kworker/u8:1+flush-179:008:50:160
1618456994440,3cyclictest1665477-21kworker/u8:1+flush-179:008:50:160
1618463994338,4cyclictest247560-21ThreadPoolForeg11:40:093
1618463994322,14cyclictest3125629-21e21169fc69a4c6707:40:093
1618462994340,2cyclictest1579015-21kworker/u8:1+events_unbound07:20:282
1618462994339,3cyclictest1846521-21kworker/u8:5+flush-179:011:25:382
1618462994339,3cyclictest1757107-21kworker/u8:1+flush-179:009:23:152
1618462994339,3cyclictest1644787-21kworker/u8:4+events_unbound07:40:092
1618462994336,6cyclictest3125687-21ThreadPoolForeg10:45:202
1618458994336,5cyclictest1629834-21/usr/share/muni07:20:021
1618456994339,3cyclictest1757107-21kworker/u8:1+flush-179:009:25:160
1618456994339,3cyclictest1726832-21kworker/u8:2+flush-179:008:55:280
1618456994339,3cyclictest1644784-21kworker/u8:3+flush-179:007:55:510
1618456994339,3cyclictest1639639-21kworker/u8:0+flush-179:007:30:170
1618456994338,4cyclictest1846521-21kworker/u8:5+flush-179:011:48:400
1618463994237,4cyclictest1955441-21/usr/share/muni12:35:083
1618463994237,4cyclictest1955441-21/usr/share/muni12:35:083
1618463994237,4cyclictest1923202-21ntpq12:00:303
1618458994238,3cyclictest1846521-21kworker/u8:5+flush-179:011:31:541
1618458994238,3cyclictest1767462-21kworker/u8:3+flush-179:009:46:141
1618458994236,5cyclictest1774128-21/usr/share/muni09:40:031
1618458994236,4cyclictest1846521-21kworker/u8:5+flush-179:011:05:301
1618458994235,5cyclictest247516-21Chrome_ChildIOT09:50:151
1618456994239,2cyclictest1794288-21kworker/u8:1+flush-179:010:05:320
1618456994239,2cyclictest1794288-21kworker/u8:1+flush-179:010:05:310
1618456994237,4cyclictest1944900-21kworker/u8:1+events_unbound12:35:050
1618456994237,4cyclictest1944900-21kworker/u8:1+events_unbound12:35:050
1618456994237,3cyclictest1629833-21/usr/share/muni07:20:130
1618463994113,13cyclictest3125648-13Chrome_IOThread10:52:253
1618462994138,2cyclictest1794288-21kworker/u8:1+events_unbound10:28:152
1618462994138,2cyclictest1726832-21kworker/u8:2+events_unbound08:52:212
1618462994138,2cyclictest1726832-21kworker/u8:2+events_unbound08:52:212
1618462994137,3cyclictest1846521-21kworker/u8:5+events_unbound12:20:142
1618462994137,3cyclictest1737691-21latency_hist09:05:002
1618462994136,3cyclictest1654229-21kworker/u8:0+events_unbound08:00:162
1618462994116,3cyclictest1644784-21kworker/u8:3+flush-179:007:56:252
1618458994135,4cyclictest1691401-21/usr/share/muni08:20:171
1618458994135,4cyclictest1634930-21/usr/share/muni07:25:021
1618456994137,3cyclictest1846521-21kworker/u8:5+flush-179:010:58:530
1618456994137,3cyclictest1696010-21kworker/u8:2+flush-179:008:45:100
1618456994136,4cyclictest1597091-21kworker/u8:2+flush-179:007:10:460
1618463994031,8cyclictest1169670-1kworker/3:1H+kblockd10:06:403
1618463994031,8cyclictest1169670-1kworker/3:1H+kblockd10:06:403
1618463994030,9cyclictest1169670-1kworker/3:1H+kblockd11:51:283
1618463994029,10cyclictest1169670-1kworker/3:1H+kblockd10:36:103
1618462994037,2cyclictest1700970-21kworker/2:2+pm09:47:482
1618458994036,3cyclictest1854274-21kworker/u8:2+flush-179:011:15:001
1618458994036,3cyclictest1752664-31munin-graph09:16:451
1618456994037,2cyclictest1767462-21kworker/u8:3+flush-179:009:35:110
1618456994036,3cyclictest1726832-21kworker/u8:2+flush-179:009:08:000
1618463993935,3cyclictest1169670-1kworker/3:1H+kblockd07:45:593
1618463993934,4cyclictest1950337-21/usr/share/muni12:30:093
1618463993934,3cyclictest1169670-1kworker/3:1H+kblockd12:28:413
161846399392,36cyclictest247557-21chrome07:55:493
1618463993921,15cyclictest1742790-21latency_hist09:10:013
1618462993936,2cyclictest1700970-21kworker/2:2+pm08:42:502
1618462993936,2cyclictest1665477-21kworker/u8:1+events_unbound08:05:072
1618462993935,3cyclictest1726832-21kworker/u8:2+events_unbound09:09:172
1618458993935,3cyclictest591032-1kworker/1:2H+kblockd08:04:191
1618458993934,4cyclictest1717388-21ThreadPoolForeg08:45:021
1618458993934,4cyclictest1712223-21/usr/share/muni08:40:091
1618456993935,3cyclictest1783901-21kworker/u8:2+flush-179:009:51:490
1618463993835,2cyclictest1850441-21kworker/3:1+pm12:09:063
1618463993835,2cyclictest1696010-21kworker/u8:2+flush-179:008:41:543
1618463993834,3cyclictest1169670-1kworker/3:1H+kblockd09:50:423
1618463993833,3cyclictest1169670-1kworker/3:1H+kblockd11:02:343
1618463993832,5cyclictest247516-21Chrome_ChildIOT07:12:193
1618463993830,7cyclictest3125725-21ThreadPoolForeg11:14:003
1618463993826,11cyclictest1260-21snmpd09:33:593
1618463993826,10cyclictest1794762-21/usr/share/muni10:00:093
1618463993824,13cyclictest3125725-21ThreadPoolForeg11:55:163
1618463993823,8cyclictest0-21swapper/309:28:053
1618462993834,3cyclictest1954794-21kworker/u8:3+events_unbound12:35:252
1618462993834,3cyclictest1954794-21kworker/u8:3+events_unbound12:35:252
1618462993834,3cyclictest1892804-21kworker/u8:1+events_unbound11:53:242
1618458993836,1cyclictest1260-21snmpd11:54:511
1618458993835,2cyclictest1820650-21kworker/u8:0+flush-179:010:35:131
1618458993832,4cyclictest591032-1kworker/1:2H+kblockd07:55:011
1618458993830,7cyclictest591032-1kworker/1:2H+kblockd11:40:441
1618456993835,2cyclictest1846521-21kworker/u8:5+flush-179:012:23:120
1618456993834,3cyclictest1644787-21kworker/u8:4+events_unbound07:40:350
161845699380,37cyclictest3125630-13chrome08:00:360
1618463993733,3cyclictest1665477-21kworker/u8:1+flush-179:008:05:293
1618463993732,4cyclictest247515-21ThreadPoolForeg08:25:543
1618463993729,7cyclictest1789653-21/usr/share/muni09:55:043
1618463993729,6cyclictest247515-21ThreadPoolForeg10:20:243
1618463993715,15cyclictest247557-21chrome10:27:363
1618462993733,3cyclictest1913691-21kworker/2:0+pm12:25:442
1618458993734,2cyclictest591032-1kworker/1:2H+kblockd08:11:351
1618458993734,2cyclictest591032-1kworker/1:2H+kblockd07:41:431
1618458993734,2cyclictest247563-13Compositor09:30:251
1618458993734,2cyclictest1898467-21kworker/1:2+pm12:29:231
1618458993733,3cyclictest591032-1kworker/1:2H+kblockd11:47:041
1618458993733,3cyclictest591032-1kworker/1:2H+kblockd08:25:251
1618458993733,3cyclictest1767462-21kworker/u8:3+flush-179:010:01:441
1618458993733,3cyclictest1711885-21kworker/u8:0+flush-179:009:05:301
1618458993733,3cyclictest1675372-21kworker/u8:4+flush-179:008:30:121
1618458993732,3cyclictest1767462-21kworker/u8:3+flush-179:010:55:141
1618456993733,3cyclictest1854274-21kworker/u8:2+flush-179:011:10:170
161845699370,35cyclictest247557-21chrome09:03:040
1618463993634,1cyclictest1169670-1kworker/3:1H+kblockd10:43:543
1618463993634,1cyclictest1169670-1kworker/3:1H+kblockd07:19:403
1618463993633,2cyclictest1169670-1kworker/3:1H+kblockd12:21:093
1618463993633,2cyclictest1169670-1kworker/3:1H+kblockd08:16:033
1618463993624,11cyclictest1685915-21ssh10:10:043
1618463993622,13cyclictest3125627-21ChromeDriver00:55:193
1618462993633,2cyclictest1203984-1kworker/2:0H+kblockd07:26:142
1618458993633,2cyclictest591032-1kworker/1:2H+kblockd09:58:501
1618458993633,2cyclictest591032-1kworker/1:2H+kblockd08:35:161
1618458993632,3cyclictest591032-1kworker/1:2H+kblockd12:31:541
1618458993632,3cyclictest591032-1kworker/1:2H+kblockd10:25:331
1618458993632,3cyclictest1783901-21kworker/u8:2+flush-179:010:16:141
1618458993632,3cyclictest1783901-21kworker/u8:2+flush-179:010:16:141
1618458993632,2cyclictest591032-1kworker/1:2H+kblockd12:21:361
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