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2026-04-17 - 05:26
Click here to display the system's profile data.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Note that at least one system runs a non-RT kernel (x scale expanded to 2000 µs).
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Characteristics of the highest latencies:
System (updated Sun Jan 04, 2026 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17764902217193,14sleep10-21swapper/107:07:481
17765792205181,14sleep20-21swapper/207:08:582
17765502201177,16sleep30-21swapper/307:08:353
17766322196172,14sleep00-21swapper/007:09:360
184931821260,2sleep13125725-21ThreadPoolForeg08:15:401
177687599901,2cyclictest1813877-21snmp_wanswitch.07:45:022
1776866998831,12cyclictest1937771-21snmp_wlanpowerc09:45:020
1776872998224,56cyclictest1937801-21chrome09:45:021
1776879996461,2cyclictest1756106-21kworker/u8:0+flush-179:007:30:113
1776879996460,3cyclictest1968738-21kworker/u8:0+flush-179:011:00:003
1776875996036,21cyclictest2061360-21ThreadPoolForeg11:45:222
1776879995854,3cyclictest1923716-21kworker/u8:2+events_unbound09:48:003
1776866995850,7cyclictest247560-21ThreadPoolForeg11:03:290
1776866995850,7cyclictest247560-21ThreadPoolForeg11:03:290
1776879995652,3cyclictest1813169-21kworker/u8:2+events_unbound09:15:303
1776879995550,4cyclictest1942563-21kworker/u8:0+flush-179:010:05:293
1776879995450,3cyclictest1823640-21kworker/u8:1+events_unbound08:40:273
1776879995350,2cyclictest2030354-21kworker/u8:2+events_unbound11:29:433
1776879995350,2cyclictest1982817-21kworker/u8:1+events_unbound10:45:003
1776879995345,6cyclictest247560-21ThreadPoolForeg12:35:263
1776872995347,4cyclictest2066594-21/usr/share/muni11:50:181
1776879995250,2cyclictest1968738-21kworker/u8:0+events_unbound10:16:513
1776879995250,2cyclictest1777155-21kworker/u8:3+flush-179:007:10:203
1776879995248,3cyclictest1823640-21kworker/u8:1+events_unbound08:50:373
1776879995147,3cyclictest2007339-21kworker/u8:4+events_unbound11:45:293
1776879995147,3cyclictest1968738-21kworker/u8:0+flush-179:010:51:543
1776879995146,4cyclictest1864768-21ntpq08:30:283
1776879995146,4cyclictest1864768-21ntpq08:30:283
1776866995145,4cyclictest1860312-21cp08:30:010
1776879995045,4cyclictest2007339-21kworker/u8:4+events_unbound11:15:013
1776875995045,4cyclictest1797922-21kworker/u8:4+flush-179:008:45:062
1776866995045,4cyclictest1813169-21kworker/u8:2+flush-179:009:00:300
1776866995041,7cyclictest1819134-21/usr/share/muni07:50:140
1776879994944,4cyclictest1823640-21kworker/u8:1+events_unbound08:15:153
1776879994943,4cyclictest1947812-21kworker/u8:1+events_unbound10:10:073
1776879994943,4cyclictest1886015-21kworker/u8:3+events_unbound08:56:213
1776875994942,5cyclictest1808708-21/usr/share/muni07:40:162
1776866994945,3cyclictest2086750-21apt-get12:09:590
1776879994844,3cyclictest2004450-21kworker/u8:3+flush-179:011:05:313
1776879994844,3cyclictest1813169-21kworker/u8:2+flush-179:007:50:123
1776879994843,4cyclictest2036349-21kworker/u8:0+flush-179:011:36:523
1776879994843,3cyclictest2075516-21kworker/u8:3+events_unbound12:30:013
1776879994842,4cyclictest1756106-21kworker/u8:0+events_unbound07:55:133
1776879994744,2cyclictest1968738-21kworker/u8:0+flush-179:010:46:293
1776879994744,2cyclictest1968738-21kworker/u8:0+flush-179:010:46:283
1776879994743,3cyclictest2071060-21kworker/u8:1+flush-179:011:52:513
1776879994743,3cyclictest1813169-21kworker/u8:2+events_unbound07:45:173
1776879994743,3cyclictest1756106-21kworker/u8:0+events_unbound07:15:203
1776879994742,3cyclictest1823640-21kworker/u8:1+events_unbound08:13:343
1776879994734,12cyclictest1394450-1kworker/3:0H+kblockd09:30:333
1776866994740,6cyclictest1949412-21apt-get09:55:150
1776879994643,2cyclictest1917506-21kworker/u8:4+events_unbound10:30:213
1776879994643,2cyclictest1911580-21kworker/u8:1+events_unbound09:26:173
1776879994641,4cyclictest2071060-21kworker/u8:1+events_unbound12:09:233
1776879994641,4cyclictest2039855-31munin-html11:20:373
1776875994643,2cyclictest1893466-21kworker/u8:4+events_unbound09:05:002
1776875994642,3cyclictest1813169-21kworker/u8:2+flush-179:008:15:162
1776866994641,4cyclictest1872589-21ntpq08:40:160
1776866994633,1cyclictest1581588-1kworker/0:0H+kblockd09:34:210
18206342450,1sleep20-21swapper/207:50:152
18035742450,1chrt1803568-21snmp_wlanswitch07:35:010
1776879994541,3cyclictest2030354-21kworker/u8:2+events_unbound11:30:203
1776879994541,3cyclictest1813169-21kworker/u8:2+events_unbound09:05:273
1776879994541,3cyclictest1813169-21kworker/u8:2+events_unbound08:00:503
1776879994541,2cyclictest2071060-21kworker/u8:1+events_unbound12:10:153
1776879994540,4cyclictest1968738-21kworker/u8:0+events_unbound11:00:133
1776879994540,4cyclictest1968738-21kworker/u8:0+events_unbound11:00:133
1776879994540,4cyclictest1848942-21kworker/u8:0+events_unbound08:25:123
1776872994539,3cyclictest1823989-21latency_hist07:55:011
1776872994536,8cyclictest1994594-21/usr/share/muni10:40:201
1776866994543,1cyclictest1876282-21chrome08:45:030
1776879994441,2cyclictest1886015-21kworker/u8:3+events_unbound09:35:223
1776879994441,2cyclictest1813169-21kworker/u8:2+flush-179:008:20:243
1776879994431,12cyclictest1797922-21kworker/u8:4+events_unbound08:09:383
1776879994417,26cyclictest3125724-21ThreadPoolForeg12:33:013
177687599447,36cyclictest3125728-13Compositor11:01:402
177687599447,36cyclictest3125728-13Compositor11:01:402
1776875994442,1cyclictest2062005-21kworker/2:0+pm12:26:192
1776875994440,3cyclictest1893466-21kworker/u8:4+flush-179:009:05:292
1776872994430,11cyclictest2045932-21/usr/share/muni11:30:031
1776866994439,4cyclictest1989356-21/usr/share/muni10:35:060
1776866994437,5cyclictest247563-13Compositor07:20:120
1776879994339,3cyclictest1886015-21kworker/u8:3+flush-179:009:24:353
1776879994336,5cyclictest1917506-21kworker/u8:4+flush-179:010:23:253
1776875994338,4cyclictest2030354-21kworker/u8:2+flush-179:011:35:122
1776875994338,3cyclictest2030354-21kworker/u8:2+flush-179:012:15:182
1776875994329,13cyclictest1831976-21kworker/2:1+pm10:56:462
1776875994320,4cyclictest2075516-21kworker/u8:3+flush-179:012:30:052
1776866994340,2cyclictest1886015-21kworker/u8:3+flush-179:009:21:410
1776866994340,2cyclictest1581588-1kworker/0:0H+kblockd08:38:160
1776866994337,4cyclictest2050786-21latency_hist11:35:000
1776866994332,2cyclictest1581588-1kworker/0:0H+kblockd12:31:240
1776879994239,2cyclictest1813169-21kworker/u8:2+flush-179:008:45:373
1776879994238,3cyclictest1756106-21kworker/u8:0+events_unbound07:40:083
1776879994231,10cyclictest1756106-21kworker/u8:0+flush-179:007:37:253
1776875994238,3cyclictest1803543-21/usr/share/muni07:35:082
1776875994238,2cyclictest1831976-21kworker/2:1+pm09:42:232
1776875994235,5cyclictest1334497-21apache211:55:152
1776875994219,22cyclictest2007339-21kworker/u8:4+flush-179:011:50:432
1776872994238,2cyclictest2030354-21kworker/u8:2+flush-179:011:35:241
1776872994237,4cyclictest2014160-31munin-html10:55:361
1776872994237,4cyclictest1973775-21/usr/share/muni10:20:011
1776872994237,3cyclictest1982817-21kworker/u8:1+flush-179:011:05:121
1776872994236,4cyclictest2061306-21/usr/share/muni11:45:131
1776872994228,13cyclictest1623477-1kworker/1:0H+kblockd08:33:161
1776872994228,13cyclictest1623477-1kworker/1:0H+kblockd08:33:161
1776879994137,3cyclictest2075516-21kworker/u8:3+events_unbound12:20:273
1776879994137,3cyclictest2030354-21kworker/u8:2+flush-179:012:00:163
1776879994137,3cyclictest1917506-21kworker/u8:4+events_unbound09:40:213
1776879994136,4cyclictest1942563-21kworker/u8:0+events_unbound09:57:423
1776879994134,2cyclictest2030354-21kworker/u8:2+flush-179:012:15:313
1776875994138,2cyclictest1831976-21kworker/2:1+pm10:06:332
1776875994138,2cyclictest1734909-21kworker/2:2+pm07:15:002
1776875994137,3cyclictest2075516-21kworker/u8:3+flush-179:012:10:302
1776875994137,3cyclictest1797922-21kworker/u8:4+flush-179:008:00:402
1776875994135,5cyclictest1963480-21/usr/share/muni10:10:042
1776875994135,4cyclictest1906998-21/usr/share/muni09:15:162
1776875994110,30cyclictest1917506-21kworker/u8:4+efi_rts_wq09:48:002
1776872994137,3cyclictest2036961-21apt-get11:20:131
1776872994137,2cyclictest1876242-21ThreadPoolForeg08:45:021
1776872994134,6cyclictest1623477-1kworker/1:0H+kblockd07:32:491
1776866994136,4cyclictest1844942-21/usr/share/muni08:15:140
1776866994130,1cyclictest0-21swapper/010:40:040
1776879994037,2cyclictest1917506-21kworker/u8:4+events_unbound09:50:283
1776879994036,3cyclictest1880908-21kworker/u8:0+flush-179:009:10:113
1776879994035,4cyclictest1886015-21kworker/u8:3+flush-179:009:00:213
1776879994035,4cyclictest1394450-1kworker/3:0H+kblockd07:27:343
1776879994031,6cyclictest247516-21Chrome_ChildIOT11:55:283
1776875994037,2cyclictest2014110-21kworker/2:2+pm11:20:132
1776875994037,2cyclictest1831976-21kworker/2:1+pm10:53:352
1776875994037,2cyclictest1831976-21kworker/2:1+pm10:33:262
1776875994037,2cyclictest1831976-21kworker/2:1+pm10:22:272
1776875994037,2cyclictest1831976-21kworker/2:1+pm09:12:262
1776875994037,2cyclictest1831976-21kworker/2:1+pm08:30:392
1776875994037,2cyclictest1831976-21kworker/2:1+pm08:30:392
1776875994037,2cyclictest1831976-21kworker/2:1+pm08:05:572
1776875994036,3cyclictest2014110-21kworker/2:2+pm11:30:052
1776875994036,3cyclictest1942563-21kworker/u8:0+flush-179:009:50:232
1776875994036,3cyclictest1886015-21kworker/u8:3+flush-179:009:20:072
1776875994036,3cyclictest1766436-21kworker/u8:1+flush-179:007:25:202
1776875994035,4cyclictest1870054-31munin-html08:35:362
1776875994034,5cyclictest1922488-1kworker/2:0H+kblockd11:28:332
1776875994034,4cyclictest1788252-21/usr/share/muni07:20:182
1776875994033,5cyclictest2024470-31munin-html11:05:372
1776875994027,12cyclictest1886015-21kworker/u8:3+flush-179:009:35:322
1776875994017,22cyclictest3125721-21chrome12:01:062
177687599400,3cyclictest3125721-21chrome10:15:492
1776872994038,1cyclictest1623477-1kworker/1:0H+kblockd07:21:331
1776872994036,3cyclictest1968738-21kworker/u8:0+flush-179:010:45:401
1776872994036,3cyclictest1968738-21kworker/u8:0+flush-179:010:45:401
1776872994035,3cyclictest2102551-21latency_hist12:25:011
1776872994028,1cyclictest1260-21snmpd09:44:051
1776872994027,5cyclictest0-21swapper/112:14:511
1776872994026,13cyclictest1260-21snmpd09:28:461
1776866994035,4cyclictest1891086-31munin-graph08:56:080
1776866994032,5cyclictest1921205-21ntpq09:25:400
19697732390,1sleep10-21swapper/110:15:121
1776879993935,3cyclictest1917506-21kworker/u8:4+flush-179:010:38:233
1776875993937,1cyclictest2062005-21kworker/2:0+pm12:22:312
1776875993937,1cyclictest2014110-21kworker/2:2+pm11:18:332
1776875993937,1cyclictest1734909-21kworker/2:2+pm07:31:032
1776875993936,2cyclictest2062005-21kworker/2:0+pm12:39:332
1776875993936,2cyclictest1999799-21snmp_wanswitch.10:45:022
1776875993936,2cyclictest1999799-21snmp_wanswitch.10:45:012
1776875993936,2cyclictest1831976-21kworker/2:1+pm08:10:172
1776875993936,2cyclictest1734909-21kworker/2:2+pm07:15:492
1776875993935,3cyclictest2062005-21kworker/2:0+pm12:07:262
1776875993935,3cyclictest1831976-21kworker/2:1+pm08:42:402
1776875993935,2cyclictest1831976-21kworker/2:1+pm08:25:062
1776875993934,3cyclictest1831976-21kworker/2:1+pm09:30:142
1776875993934,3cyclictest1823640-21kworker/u8:1+events_unbound08:20:112
1776875993934,3cyclictest1101164-1kworker/2:2H+kblockd08:50:122
177687599390,38cyclictest3125648-13Chrome_IOThread11:11:052
1776872993937,2cyclictest2055980-21kworker/1:0+pm12:19:131
1776872993935,3cyclictest1766436-21kworker/u8:1+flush-179:007:26:251
1776872993934,3cyclictest2019736-31munin-graph11:01:561
1776872993934,3cyclictest2019736-31munin-graph11:01:561
1776872993928,3cyclictest1926421-1kworker/1:1H+kblockd09:51:581
1776866993936,2cyclictest1823640-21kworker/u8:1+flush-179:008:14:120
1776879993834,3cyclictest1942563-21kworker/u8:0+flush-179:010:00:343
1776879993834,3cyclictest1394450-1kworker/3:0H+kblockd10:25:343
1776879993834,3cyclictest1394450-1kworker/3:0H+kblockd07:20:043
1776879993834,2cyclictest1394450-1kworker/3:0H+kblockd11:43:283
1776879993834,2cyclictest1394450-1kworker/3:0H+kblockd08:35:043
1776875993835,2cyclictest1734909-21kworker/2:2+pm07:55:052
1776875993834,3cyclictest1831976-21kworker/2:1+pm10:00:592
1776875993834,2cyclictest1831976-21kworker/2:1+pm09:26:022
1776875993833,4cyclictest1968738-21kworker/u8:0+events_unbound10:30:012
177687599381,14cyclictest3125599-21python310:35:312
1776872993836,2cyclictest1823640-21kworker/u8:1+flush-179:008:40:101
1776872993834,3cyclictest1813169-21kworker/u8:2+flush-179:007:41:121
1776866993835,2cyclictest2040249-21kworker/0:2+pm12:23:030
1776866993835,2cyclictest1953075-21kworker/0:3+pm10:03:030
1776866993835,2cyclictest1581588-1kworker/0:0H+kblockd10:50:330
1776866993835,1cyclictest105470-21isc-net-000012:15:180
20613902370,1chrt2061325-21snmp_areswitch.11:45:010
1776879993733,3cyclictest1394450-1kworker/3:0H+kblockd11:18:583
1776875993735,1cyclictest1101164-1kworker/2:2H+kblockd08:58:542
1776875993732,3cyclictest1922488-1kworker/2:0H+kblockd09:55:062
177687599370,2cyclictest0-21swapper/210:41:022
1776872993734,2cyclictest1926421-1kworker/1:1H+kblockd11:55:111
1776872993734,2cyclictest1926421-1kworker/1:1H+kblockd11:19:341
1776872993733,3cyclictest2041707-21apt-get11:25:141
1776872993732,4cyclictest3125725-21ThreadPoolForeg07:17:451
1776872993732,4cyclictest2086352-31munin-html12:05:501
1776872993718,10cyclictest3125726-13Chrome_ChildIOT08:54:261
1776866993734,2cyclictest1882730-21apt-get08:50:140
1776866993734,2cyclictest1756106-21kworker/u8:0+flush-179:007:27:220
1776866993734,2cyclictest1581588-1kworker/0:0H+kblockd11:16:400
1776866993734,2cyclictest1581588-1kworker/0:0H+kblockd08:20:040
1776866993734,1cyclictest1581588-1kworker/0:0H+kblockd07:47:540
1776866993733,3cyclictest2060263-21munin-limits11:40:350
1776866993733,3cyclictest2030354-21kworker/u8:2+flush-179:012:14:460
1776866993732,4cyclictest1834446-21/usr/share/muni08:05:130
1776866993731,5cyclictest247561-21ThreadPoolForeg11:39:040
1776866993731,4cyclictest3125688-21Chrome_ChildIOT12:35:100
19860542360,1chrt1986055-21expr10:30:201
177687599361,14cyclictest247557-21chrome11:40:222
1776872993634,1cyclictest1623477-1kworker/1:0H+kblockd07:45:201
1776872993633,2cyclictest2081045-1kworker/1:2H+kblockd12:04:221
1776872993633,2cyclictest1926421-1kworker/1:1H+kblockd10:02:431
1776872993633,2cyclictest1926421-1kworker/1:1H+kblockd09:35:591
1776872993633,2cyclictest1813169-21kworker/u8:2+flush-179:008:10:061
1776872993633,2cyclictest1623477-1kworker/1:0H+kblockd09:05:301
1776872993633,2cyclictest1623477-1kworker/1:0H+kblockd08:35:241
1776872993633,2cyclictest1623477-1kworker/1:0H+kblockd08:29:331
1776872993633,2cyclictest1623477-1kworker/1:0H+kblockd08:08:161
1776872993633,2cyclictest1623477-1kworker/1:0H+kblockd07:56:021
1776872993632,3cyclictest2081045-1kworker/1:2H+kblockd12:32:331
1776872993632,3cyclictest1926421-1kworker/1:1H+kblockd11:14:171
1776872993632,3cyclictest1917506-21kworker/u8:4+flush-179:010:35:191
1776872993632,2cyclictest1926421-1kworker/1:1H+kblockd11:41:511
1776872993631,4cyclictest1901924-21/usr/share/muni09:10:021
1776872993631,3cyclictest2104021-21apt-get12:25:131
1776872993626,2cyclictest3125684-21Chrome_DevTools10:28:371
1776866993634,1cyclictest1581588-1kworker/0:0H+kblockd10:08:110
1776866993634,1cyclictest1581588-1kworker/0:0H+kblockd08:04:500
1776866993633,2cyclictest1581588-1kworker/0:0H+kblockd12:00:010
1776866993633,2cyclictest1581588-1kworker/0:0H+kblockd09:54:430
1776866993633,2cyclictest1581588-1kworker/0:0H+kblockd09:17:400
1776866993633,2cyclictest1581588-1kworker/0:0H+kblockd09:09:450
1776866993632,2cyclictest1581588-1kworker/0:0H+kblockd11:50:000
177686699360,35cyclictest3125728-13Compositor12:00:120
1776872993533,1cyclictest1926421-1kworker/1:1H+kblockd10:13:391
1776872993533,1cyclictest1926421-1kworker/1:1H+kblockd09:55:151
1776872993533,1cyclictest1623477-1kworker/1:0H+kblockd08:23:391
1776872993532,1cyclictest1623477-1kworker/1:0H+kblockd07:12:211
1776872993531,3cyclictest1623477-1kworker/1:0H+kblockd08:56:311
1776872993529,4cyclictest1908365-21ntpq09:15:161
1776872993525,9cyclictest2005038-21munin-update10:50:001
1776866993533,2cyclictest3125728-13Compositor10:25:160
1776866993533,1cyclictest1581588-1kworker/0:0H+kblockd12:28:590
1776866993533,1cyclictest1581588-1kworker/0:0H+kblockd11:26:530
1776866993533,1cyclictest1581588-1kworker/0:0H+kblockd11:13:380
1776866993533,1cyclictest1581588-1kworker/0:0H+kblockd11:09:310
1776866993533,1cyclictest1581588-1kworker/0:0H+kblockd08:32:120
1776866993533,1cyclictest1581588-1kworker/0:0H+kblockd08:32:110
1776866993533,1cyclictest1581588-1kworker/0:0H+kblockd07:44:050
1776866993533,1cyclictest1581588-1kworker/0:0H+kblockd07:18:420
1776866993532,2cyclictest3125624-21chromedriver10:32:000
1776866993532,2cyclictest1581588-1kworker/0:0H+kblockd11:21:510
1776866993532,2cyclictest1581588-1kworker/0:0H+kblockd09:43:480
1776866993532,2cyclictest1581588-1kworker/0:0H+kblockd07:10:050
1776866993530,3cyclictest3125627-21ChromeDriver00:55:190
1776866993520,14cyclictest1800016-21cat07:30:170
1776872993431,2cyclictest1623477-1kworker/1:0H+kblockd09:24:501
1776872993431,1cyclictest1926421-1kworker/1:1H+kblockd09:34:001
1776872993429,4cyclictest1808027-31munin-graph07:35:491
1776866993431,2cyclictest3125648-13Chrome_IOThread10:10:320
1776866993431,2cyclictest1581588-1kworker/0:0H+kblockd10:49:200
1776866993431,2cyclictest1581588-1kworker/0:0H+kblockd10:49:200
1776866993431,2cyclictest1581588-1kworker/0:0H+kblockd10:21:300
1776866993431,2cyclictest1581588-1kworker/0:0H+kblockd07:58:110
1776866993429,3cyclictest1931701-21munin-limits09:35:380
1776872993330,2cyclictest1823640-21kworker/u8:1+flush-179:008:01:271
1776872993329,2cyclictest2081045-1kworker/1:2H+kblockd12:39:071
1776872993229,2cyclictest1623477-1kworker/1:0H+kblockd09:01:531
1776866993230,1cyclictest1260-21snmpd10:16:190
1776872993130,1cyclictest1926421-1kworker/1:1H+kblockd10:06:301
1776866993028,1cyclictest1260-21snmpd09:10:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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