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2025-12-03 - 12:50
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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 rackeslot2.osadl.org (updated Wed Dec 03, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236165121210,2sleep30-21swapper/321:55:153
2132932992519,1cyclictest23518081systemd-run21:50:001
2132931992417,6cyclictest2395260-21latency_hist22:15:010
2132931992315,7cyclictest2335887-21grep21:40:180
2132932992219,2cyclictest1635-21dbus-daemon22:40:011
213293199228,6cyclictest0-21swapper/022:25:100
2132931992215,4cyclictest2570810-21gltestperf23:55:150
2132932992118,2cyclictest0-21swapper/122:20:001
2132931992111,6cyclictest0-21swapper/021:45:190
2132931992111,5cyclictest0-21swapper/021:30:010
23298022200,2sleep30-21swapper/321:35:193
213293299205,9cyclictest2360648-1cat21:55:011
2132932992017,2cyclictest7602-21cron00:25:011
213293199209,6cyclictest0-21swapper/022:45:170
2132931992011,5cyclictest2552721-21/usr/sbin/munin23:45:180
2132931992011,5cyclictest2132929-21cyclictest23:34:050
2132931992010,5cyclictest0-21swapper/021:10:230
2132931992010,5cyclictest0-21swapper/000:25:010
2132931992010,4cyclictest2582965-21kthreadcore00:00:190
302487291190,2phc2sys0-21swapper/323:14:273
2132932991916,2cyclictest0-21swapper/119:15:011
2132932991913,2cyclictest170550irq/121-eno100:15:011
2132932991912,3cyclictest2559160-21runrttasks23:46:511
2132932991912,3cyclictest2025-21snmpd23:04:181
2132932991911,3cyclictest0-21swapper/100:40:011
213293199198,6cyclictest0-21swapper/021:20:220
2132931991916,2cyclictest2361891-21irqcore21:55:160
2132931991916,2cyclictest2251849-21munin-plugin-st20:45:010
2132931991913,5cyclictest2508679-21http23:20:000
302487291180,3phc2sys0-21swapper/322:34:593
302487291180,3phc2sys0-21swapper/321:40:493
2132932991814,3cyclictest2508927-21find23:20:011
2132932991812,2cyclictest170550irq/121-eno121:15:171
2132931991814,3cyclictest2214202-21mailstats20:10:240
2132931991813,3cyclictest1702-21in:imuxsock23:00:020
213293299179,3cyclictest0-21swapper/100:00:191
2132932991714,2cyclictest2517560-21cut23:25:011
2132932991714,2cyclictest2139070-21munin-node22:21:521
2132932991714,2cyclictest1635-21dbus-daemon23:40:011
2132932991714,2cyclictest0-21swapper/122:55:011
213293199178,5cyclictest2648326-21grep00:40:010
213293199177,5cyclictest0-21swapper/023:24:530
213293199171,5cyclictest2543887-21munin-run23:40:020
2132931991714,2cyclictest2147332-21awk19:20:000
2132931991714,2cyclictest1702-21in:imuxsock00:34:310
2132931991714,2cyclictest1-21systemd19:15:020
2132931991714,2cyclictest0-21swapper/022:20:010
2132931991713,3cyclictest2370353-21head22:00:140
2132931991713,3cyclictest2189762-21mailstats19:50:240
2132931991711,5cyclictest2622174-21cron00:29:560
2132931991710,6cyclictest0-21swapper/023:10:000
213293199170,7cyclictest2565606-21kthreadcore23:50:220
302487291161,5phc2sys0-21swapper/321:25:243
302487291161,2phc2sys0-21swapper/320:40:223
302487291160,3phc2sys0-21swapper/321:18:543
21980602160,2sleep30-21swapper/320:00:173
2132933991613,1cyclictest0-21swapper/223:51:312
2132933991613,1cyclictest0-21swapper/200:00:382
213293399160,7cyclictest0-21swapper/221:35:112
213293299168,6cyclictest1635-21dbus-daemon20:20:011
213293299167,4cyclictest0-21swapper/121:55:181
2132932991613,2cyclictest2561971-21df23:50:161
2132932991613,2cyclictest2395478-21systemd-run22:15:021
2132932991613,2cyclictest1700-21systemd-logind22:45:011
213293199166,6cyclictest2203059-21/usr/sbin/munin20:05:180
213293199166,5cyclictest0-21swapper/021:15:240
213293199161,3cyclictest0-21swapper/021:53:480
2132931991613,2cyclictest2549312-21threads23:40:230
2132931991613,2cyclictest2366593-21kworker/u16:2-ext4-rsv-conversion22:45:020
2132931991613,2cyclictest2325726-21perf21:35:000
2132931991613,2cyclictest2156838-21sed19:25:190
2132931991613,2cyclictest2132929-21cyclictest20:59:070
2132931991613,2cyclictest2132929-21cyclictest20:25:010
2132931991613,2cyclictest1700-21systemd-logind22:10:020
2132931991612,3cyclictest2183046-21kthreadcore19:45:180
302487291150,3phc2sys0-21swapper/323:59:393
302487291150,3phc2sys0-21swapper/322:50:113
302487291150,2phc2sys0-21swapper/323:41:573
302487291150,2phc2sys0-21swapper/322:25:203
302487291150,2phc2sys0-21swapper/300:36:073
302487291150,2phc2sys0-21swapper/300:21:303
2132933991512,1cyclictest0-21swapper/222:55:162
2132933991512,1cyclictest0-21swapper/222:15:542
213293299158,3cyclictest2378233-21/usr/sbin/munin22:05:121
213293299153,6cyclictest2132929-21cyclictest23:55:211
2132932991512,2cyclictest2590655-21kthreadcore00:05:211
2132932991512,2cyclictest2544155-21aten_repower_po23:40:121
2132932991512,2cyclictest2335017-21tail21:40:141
2132932991512,2cyclictest2330645-21kthreadcore21:35:191
2132932991512,2cyclictest2282213-21diskmemload22:47:371
2132932991512,2cyclictest2132929-21cyclictest20:55:221
2132932991512,2cyclictest1661-21polkitd20:53:571
2132932991512,2cyclictest1652-1atopacctd23:25:161
2132932991512,2cyclictest0-21swapper/119:45:011
2132932991512,2cyclictest0-21swapper/119:20:001
2132932991511,3cyclictest24282522sleep122:31:291
2132932991511,3cyclictest2416178-21kthreadcore22:25:191
2132932991511,3cyclictest2102579-21kworker/u16:1+nfsiod00:34:331
2132932991511,3cyclictest1954027-21kworker/u16:3+nfsiod21:34:191
2132932991510,4cyclictest2276603-21aten2.4-expect21:05:121
213293199157,6cyclictest0-21swapper/023:25:140
213293199155,4cyclictest0-21swapper/000:10:010
213293199154,6cyclictest2606587-21kthreadcore00:15:180
213293199153,7cyclictest2327001-21diskmemload21:35:160
213293199153,7cyclictest0-21swapper/020:50:140
213293199151,6cyclictest0-21swapper/019:35:190
2132931991512,2cyclictest2432005-21irqrtprio22:35:190
2132931991512,2cyclictest2427179-21mailstats22:30:210
2132931991512,2cyclictest2216847-21kthreadcore20:15:190
2132931991512,2cyclictest2132929-21cyclictest23:15:000
2132931991511,3cyclictest2410133-21unixbench_singl22:20:250
213293199151,13cyclictest2160125-21/usr/sbin/munin19:30:100
2132931991510,4cyclictest0-21swapper/020:45:150
213293199150,1cyclictest0-21swapper/022:54:140
213293199150,10cyclictest2172343-21/usr/sbin/munin19:40:230
302487291140,4phc2sys0-21swapper/323:34:293
302487291140,3phc2sys0-21swapper/322:39:113
302487291140,2phc2sys0-21swapper/323:28:063
302487291140,2phc2sys0-21swapper/323:09:223
302487291140,2phc2sys0-21swapper/322:14:203
302487291140,2phc2sys0-21swapper/300:05:283
25889162140,2sleep20-21swapper/200:05:192
213293399140,6cyclictest0-21swapper/223:30:162
213293399140,1cyclictest0-21swapper/221:50:362
213293399140,12cyclictest0-21swapper/222:30:432
213293299147,5cyclictest2152209-21tr19:20:221
2132932991413,1cyclictest0-21swapper/100:27:451
2132932991411,2cyclictest2610579-21unixbench-2d00:15:251
2132932991411,2cyclictest2169495-21kthreadcore19:35:201
2132932991411,2cyclictest0-21swapper/123:10:011
2132932991410,3cyclictest2527922-21irqrtprio23:30:181
2132932991410,3cyclictest2465816-21cstates22:55:141
2132932991410,3cyclictest2369793-21cpu22:00:121
2132932991410,3cyclictest2240607-21gltestperf20:35:161
2132932991410,3cyclictest2221956-21cpuspeed_turbos20:20:141
2132932991410,3cyclictest2157727-21kthreadcore19:25:191
213293199148,5cyclictest0-21swapper/020:40:020
213293199143,6cyclictest0-21swapper/020:32:230
213293199141,8cyclictest2276136-21cron21:05:000
2132931991411,2cyclictest2597774-21kthreadcore00:10:170
2132931991411,2cyclictest2476656-21kthreadcore23:00:200
2132931991411,2cyclictest2277539-21irqcore21:05:170
2132931991411,2cyclictest1954027-21kworker/u16:3-events_power_efficient20:05:000
2132931991410,3cyclictest2228722-21irqcore20:25:180
2132931991410,3cyclictest2191918-21irqcore19:55:170
2132931991410,3cyclictest2150624-21kthreadcore19:20:210
302487291131,3phc2sys0-21swapper/322:45:103
302487291131,2phc2sys0-21swapper/300:10:113
302487291130,4phc2sys0-21swapper/322:17:203
302487291130,3phc2sys0-21swapper/323:54:453
302487291130,2phc2sys0-21swapper/321:14:423
302487291130,2phc2sys0-21swapper/300:28:543
213293399135,6cyclictest0-21swapper/222:05:102
213293399131,5cyclictest0-21swapper/200:35:122
2132933991310,1cyclictest0-21swapper/223:49:002
2132933991310,1cyclictest0-21swapper/223:25:142
2132933991310,1cyclictest0-21swapper/223:11:192
2132933991310,1cyclictest0-21swapper/222:20:152
2132933991310,1cyclictest0-21swapper/222:10:242
2132933991310,1cyclictest0-21swapper/220:09:012
2132933991310,1cyclictest0-21swapper/219:55:012
2132933991310,1cyclictest0-21swapper/219:39:452
2132933991310,1cyclictest0-21swapper/200:32:032
213293399130,7cyclictest0-21swapper/222:00:012
213293399130,6cyclictest0-21swapper/223:00:122
213293399130,6cyclictest0-21swapper/220:50:122
213293299139,3cyclictest2311068-21kthreadcore21:25:191
213293299139,3cyclictest2284037-21kthreadcore21:10:191
213293299139,3cyclictest2197159-21cpu20:00:131
213293299132,7cyclictest1652-1atopacctd23:10:211
2132932991311,1cyclictest8351-21rtkit-daemon20:45:171
2132932991310,2cyclictest2302302-21kthreadcore21:20:191
2132932991310,2cyclictest2246182-21aten_repower_po20:40:111
2132932991310,2cyclictest2233987-21aten_repower_vo20:30:121
2132932991310,2cyclictest2233546-21systemd-run20:30:011
2132932991310,2cyclictest2209170-21acpi20:10:121
2132932991310,2cyclictest2184957-21head19:50:141
2132932991310,2cyclictest2184609-21sh19:50:021
2132932991310,2cyclictest2160902-21tail19:30:151
2132932991310,2cyclictest0-21swapper/120:00:021
302487291122,2phc2sys0-21swapper/321:51:043
302487291121,2phc2sys0-21swapper/319:12:383
302487291120,3phc2sys0-21swapper/320:10:123
302487291120,2phc2sys0-21swapper/323:37:103
302487291120,2phc2sys0-21swapper/322:24:063
302487291120,2phc2sys0-21swapper/320:05:513
302487291120,2phc2sys0-21swapper/319:53:413
302487291120,2phc2sys0-21swapper/319:05:133
24394832122,5sleep20-21swapper/222:40:112
213293399129,1cyclictest0-21swapper/223:40:562
213293399129,1cyclictest0-21swapper/223:08:102
213293399129,1cyclictest0-21swapper/221:25:162
213293399129,1cyclictest0-21swapper/221:20:012
213293399129,1cyclictest0-21swapper/220:05:002
213293399129,1cyclictest0-21swapper/219:41:192
213293399129,1cyclictest0-21swapper/200:20:192
213293399129,1cyclictest0-21swapper/200:16:462
213293399129,1cyclictest0-21swapper/200:12:442
213293399121,8cyclictest2377785-21chrt22:04:562
213293399121,7cyclictest0-21swapper/220:35:132
2132933991210,1cyclictest0-21swapper/221:00:012
213293399120,7cyclictest0-21swapper/223:25:002
213293399120,10cyclictest0-21swapper/221:20:082
213293299129,2cyclictest2203714-21fschecks_time20:05:151
213293299121,6cyclictest2132767-21latency_hist19:10:011
2132932991210,1cyclictest2271175-21idleruntime21:00:161
302487291113,2phc2sys0-21swapper/319:30:013
302487291112,2phc2sys0-21swapper/322:05:023
302487291112,2phc2sys0-21swapper/320:50:193
302487291111,3phc2sys0-21swapper/322:40:133
302487291111,2phc2sys0-21swapper/321:20:223
302487291110,3phc2sys0-21swapper/323:21:283
302487291110,3phc2sys0-21swapper/322:55:523
302487291110,3phc2sys0-21swapper/322:05:103
302487291110,3phc2sys0-21swapper/321:46:593
302487291110,2phc2sys0-21swapper/319:47:443
213293399119,1cyclictest0-21swapper/223:15:162
213293399119,1cyclictest0-21swapper/220:45:142
213293399119,1cyclictest0-21swapper/200:29:032
213293399118,1cyclictest0-21swapper/222:49:462
213293399118,1cyclictest0-21swapper/221:40:062
213293399118,1cyclictest0-21swapper/221:10:142
213293399118,1cyclictest0-21swapper/220:41:442
213293399118,1cyclictest0-21swapper/219:49:302
213293399118,1cyclictest0-21swapper/219:30:122
213293399118,1cyclictest0-21swapper/219:20:152
213293399118,1cyclictest0-21swapper/219:15:432
213293399118,1cyclictest0-21swapper/219:13:402
213293399115,4cyclictest0-21swapper/223:35:122
213293399111,7cyclictest2190833-21taskset19:55:032
213293399110,9cyclictest0-21swapper/222:51:172
213293399110,8cyclictest25782502sleep223:59:592
213293399110,7cyclictest0-21swapper/221:00:122
302487291101,4phc2sys0-21swapper/320:35:123
302487291101,2phc2sys0-21swapper/320:55:123
302487291101,2phc2sys0-21swapper/319:40:193
302487291100,4phc2sys0-21swapper/320:15:123
302487291100,4phc2sys0-21swapper/300:15:113
302487291100,2phc2sys0-21swapper/323:00:333
302487291100,2phc2sys0-21swapper/321:30:363
302487291100,2phc2sys0-21swapper/320:30:043
302487291100,2phc2sys0-21swapper/319:55:543
302487291100,2phc2sys0-21swapper/319:35:263
302487291100,2phc2sys0-21swapper/300:01:173
213293399108,1cyclictest0-21swapper/222:25:322
213293399108,1cyclictest0-21swapper/221:46:032
213293399108,1cyclictest0-21swapper/221:31:542
213293399108,1cyclictest0-21swapper/220:10:142
213293399107,1cyclictest0-21swapper/221:05:172
213293399101,7cyclictest2227387-21taskset20:24:572
213293399101,6cyclictest2430849-21chrt22:35:132
213293399101,6cyclictest2233137-21chrt20:25:292
213293399101,6cyclictest2215512-21chrt20:15:072
30248729191,2phc2sys0-21swapper/321:05:113
30248729191,2phc2sys0-21swapper/319:30:253
30248729191,2phc2sys0-21swapper/300:30:143
30248729190,4phc2sys0-21swapper/320:30:003
30248729190,2phc2sys0-21swapper/323:45:543
30248729190,2phc2sys0-21swapper/323:15:273
30248729190,2phc2sys0-21swapper/321:00:183
30248729190,2phc2sys0-21swapper/320:45:023
30248729190,2phc2sys0-21swapper/320:20:143
30248729190,2phc2sys0-21swapper/319:21:233
30248729190,2phc2sys0-21swapper/319:15:223
21329339991,6cyclictest2233806-21chrt20:30:062
21329339991,6cyclictest2159566-21chrt19:26:582
21329319993,2cyclictest17450irq/132-ahci[0000:00:17.0]19:10:010
2127984261,3sleep20-21swapper/219:05:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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