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2026-06-09 - 11:34
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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 Tue Jun 09, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27204621020,1sleep10-21swapper/119:20:301
4847022930,2sleep20-21swapper/222:04:422
4239742280,2sleep20-21swapper/221:20:332
255156992717,3cyclictest706567-21latency_hist00:35:021
255156992522,2cyclictest522121-21grep22:30:031
255156992421,2cyclictest551808-21latency_hist22:50:011
255156992320,2cyclictest514554-21latency_hist22:25:011
255156992320,2cyclictest484828-21latency_hist22:05:001
3622032220,2sleep1362207-21fschecks_count20:35:281
255156992213,2cyclictest0-21swapper/121:10:021
255155992215,1cyclictest67250irq/126-eno121:00:250
255157992119,1cyclictest0-21swapper/223:25:022
25515699219,2cyclictest492398rtkit-daemon22:06:341
25515699214,7cyclictest448107-21awk21:40:011
255155992118,2cyclictest660-21dbus-daemon00:35:020
255155992118,2cyclictest658-21avahi-daemon23:05:010
255155992115,5cyclictest0-21swapper/000:20:010
255155992114,6cyclictest656636-21kthreadcore00:00:310
255155992113,7cyclictest413068-21kthreadcore21:15:300
255155992113,7cyclictest413068-21kthreadcore21:15:300
255155992110,4cyclictest596565-21aten2.4-expect23:20:250
255156992017,2cyclictest623479-21mailstats23:35:351
255156992017,2cyclictest405135-21sh21:10:281
25515599209,7cyclictest540157-21tr22:40:320
25515599209,10cyclictest546109-21kthreadcore22:45:300
25515599204,11cyclictest663180-21expr00:05:280
255155992014,5cyclictest694690-21kthreadcore00:25:310
255155992014,2cyclictest492398rtkit-daemon23:16:350
255155992013,6cyclictest1020-21runrttasks23:27:480
255155992012,7cyclictest508241-21if_err_enp1s0.822:20:310
255155992010,2cyclictest478298-21cstates22:00:280
5670672190,1sleep10-21swapper/123:00:241
255157991916,1cyclictest0-21swapper/220:20:012
255157991913,3cyclictest559562-21chrt22:55:082
25515699199,3cyclictest0-21swapper/122:35:281
25515699195,7cyclictest67250irq/126-eno123:10:241
255156991916,2cyclictest261205-21cut19:15:011
255156991916,2cyclictest1067-21sshd00:35:281
255156991916,2cyclictest0-21swapper/100:25:021
255156991912,5cyclictest1-21systemd00:00:031
25515599196,1cyclictest11systemd00:25:010
255155991916,2cyclictest625527-21sh23:40:010
255157991815,1cyclictest0-21swapper/223:10:302
255157991815,1cyclictest0-21swapper/200:00:292
255156991816,1cyclictest0-21swapper/122:00:021
255156991815,2cyclictest677208-21sort00:15:021
255156991815,2cyclictest660463-21mailstats00:00:391
255156991815,2cyclictest440948-21systemd-run21:35:021
255156991810,7cyclictest502788-21kthreadcore22:15:301
25515599189,5cyclictest487728-21kthreadcore22:05:300
25515599188,6cyclictest432239-21diskmemload21:26:330
25515599186,8cyclictest534842-21ssh22:35:360
25515599186,6cyclictest626337-21diskstats23:40:260
25515599186,6cyclictest4922-21rtkit-daemon23:45:070
25515599184,5cyclictest660-21dbus-daemon20:45:020
255155991815,2cyclictest708214-21kthreadcore00:35:310
255155991815,2cyclictest658-21avahi-daemon19:10:020
255155991815,2cyclictest375128-21kthreadcore20:45:310
255155991815,2cyclictest285022-21kthreadcore19:30:310
255155991815,2cyclictest271147-21kthreadcore19:20:300
255155991815,2cyclictest1-21systemd22:20:020
255155991811,6cyclictest650779-21kthreadcore23:55:320
255155991811,6cyclictest0-21swapper/021:35:330
255155991810,4cyclictest0-21swapper/021:00:010
3153791170,2phc2sys0-21swapper/300:38:093
255157991715,1cyclictest0-21swapper/223:10:022
255157991715,1cyclictest0-21swapper/222:45:272
255157991715,1cyclictest0-21swapper/222:35:022
255157991715,1cyclictest0-21swapper/222:25:322
255157991714,1cyclictest0-21swapper/221:15:252
255157991714,1cyclictest0-21swapper/221:15:252
255157991714,1cyclictest0-21swapper/219:15:012
25515699177,3cyclictest0-21swapper/121:43:281
25515699172,5cyclictest67250irq/126-eno123:49:021
255156991714,2cyclictest590371-21kernelversion23:15:281
255156991714,2cyclictest255153-21cyclictest20:55:371
255156991713,3cyclictest312326-21latency_hist19:55:011
25515699170,9cyclictest677894-21cat00:15:271
25515599179,5cyclictest422672-21ssh21:20:310
25515599179,4cyclictest519380-21kthreadcore22:25:320
25515599179,4cyclictest318814-21aten2.4-expect20:00:240
25515599178,5cyclictest274-21systemd-journal20:37:330
25515599176,7cyclictest641073-21ssh23:50:260
25515599176,6cyclictest337226-21aten2.4-expect20:15:260
25515599175,8cyclictest596196-21kworker/u16:0+rpciod00:12:130
25515599175,7cyclictest496464-21cut22:10:310
25515599173,4cyclictest379987-21aten2.4-expect20:50:250
25515599173,2cyclictest449895-21kthreadcore21:40:320
255155991715,1cyclictest581268-21cron23:10:010
255155991714,2cyclictest561014-21kthreadcore22:55:310
255155991714,2cyclictest559267-21ssh22:55:010
255155991714,2cyclictest470661-21aten_repower_fr21:55:230
255155991714,2cyclictest461340-21head21:45:380
255155991714,2cyclictest400953-21kthreadcore21:05:330
255155991714,2cyclictest301811-21kthreadcore19:45:320
255155991714,2cyclictest294061-21latency_hist19:40:020
255155991714,2cyclictest0-21swapper/021:35:030
255155991713,3cyclictest261743-21kthreadcore19:15:030
255155991712,4cyclictest352299-21kthreadcore20:25:320
255155991712,4cyclictest331217-21cpuspeed_turbos20:10:270
255157991615,0cyclictest0-21swapper/221:50:012
255157991614,1cyclictest0-21swapper/223:05:032
255157991614,1cyclictest0-21swapper/222:15:012
255157991614,1cyclictest0-21swapper/221:30:022
255157991614,1cyclictest0-21swapper/220:40:022
255157991614,1cyclictest0-21swapper/220:10:312
255157991613,1cyclictest0-21swapper/223:15:232
255157991613,1cyclictest0-21swapper/219:55:012
255157991613,1cyclictest0-21swapper/219:25:322
255157991613,1cyclictest0-21swapper/219:25:022
255157991613,1cyclictest0-21swapper/200:00:022
255157991610,2cyclictest0-21swapper/221:40:432
25515699164,5cyclictest660-21dbus-daemon22:55:361
25515699164,4cyclictest385395-21sshd20:52:271
25515699163,6cyclictest67250irq/126-eno121:55:021
255156991613,2cyclictest658-21avahi-daemon19:50:031
255156991613,2cyclictest641199-21fschecks_time23:50:271
255156991613,2cyclictest616201-21mailstats23:30:351
255156991613,2cyclictest544064-21apt-config22:45:011
255156991613,2cyclictest527729-21tail22:30:371
255156991613,2cyclictest300146-21cron19:45:011
255156991613,2cyclictest255153-21cyclictest20:00:321
255156991613,2cyclictest0-21swapper/121:15:351
255156991613,2cyclictest0-21swapper/121:15:351
255156991611,4cyclictest0-21swapper/120:20:021
25515699160,6cyclictest360601-21python320:30:351
25515599168,4cyclictest0-21swapper/019:25:330
25515599165,6cyclictest1050-21snmpd23:30:290
255155991613,2cyclictest525207-21kthreadcore22:30:310
255155991613,2cyclictest405695-21kthreadcore21:10:310
255155991613,2cyclictest358372-21kthreadcore20:30:310
255155991613,2cyclictest327675-21kthreadcore20:05:350
255155991613,2cyclictest297214-21kthreadcore19:40:330
255155991613,2cyclictest256719-21kthreadcore19:10:320
492398150,2rtkit-daemon1242-21mta-sts-daemon19:55:191
3153791150,3phc2sys0-21swapper/323:27:003
3153791150,2phc2sys0-21swapper/322:25:033
3153791150,2phc2sys0-21swapper/319:26:543
3153791150,2phc2sys0-21swapper/300:04:073
25515799157,5cyclictest397479-21chrt21:00:572
25515799151,7cyclictest0-21swapper/222:00:022
255157991513,1cyclictest0-21swapper/223:40:312
255157991513,1cyclictest0-21swapper/221:50:342
255157991513,1cyclictest0-21swapper/220:05:312
255157991513,1cyclictest0-21swapper/220:00:032
255157991513,1cyclictest0-21swapper/200:35:032
255157991513,1cyclictest0-21swapper/200:20:322
255157991513,1cyclictest0-21swapper/200:15:032
255157991512,1cyclictest0-21swapper/222:54:272
255157991512,1cyclictest0-21swapper/222:20:292
255157991512,1cyclictest0-21swapper/222:15:352
255157991512,1cyclictest0-21swapper/221:30:252
255157991511,2cyclictest0-21swapper/220:00:232
25515699159,4cyclictest427824-21kthreadcore21:25:301
25515699155,2cyclictest17750irq/132-ahci[0000:00:17.0]21:05:021
25515699153,5cyclictest349379-21cat20:25:021
25515699151,6cyclictest581279-21latency_hist23:10:011
25515699151,6cyclictest287962-21latency_hist19:35:011
255156991513,1cyclictest0-21swapper/123:40:241
255156991512,2cyclictest552962-21fschecks_time22:50:261
255156991512,2cyclictest493345-21tail22:10:271
255156991512,2cyclictest457918-21kthreadcore21:45:311
255156991512,2cyclictest420554-21kthreadcore21:20:301
255156991512,2cyclictest330931-21/usr/sbin/munin20:10:361
255156991511,3cyclictest695352-21kthreadcore00:25:321
255156991511,3cyclictest664168-21kthreadcore00:05:331
255156991511,3cyclictest288946-21cut19:35:281
255156991511,3cyclictest1237-21mta-sts-daemon23:22:301
25515699150,3cyclictest281897-21latency_hist19:30:011
25515599154,4cyclictest463428-21ssh21:50:270
255155991512,2cyclictest584647-21kthreadcore23:10:320
255155991512,2cyclictest344647-21irqrtprio20:20:280
255155991512,2cyclictest314579-21kthreadcore19:55:310
255155991512,2cyclictest306691-21aten_repower_fr19:50:250
4109772140,4sleep30-21swapper/321:14:063
3153791140,4phc2sys0-21swapper/323:22:133
3153791140,3phc2sys0-21swapper/320:57:313
255157991412,1cyclictest0-21swapper/223:50:232
255157991412,1cyclictest0-21swapper/219:30:262
255157991412,1cyclictest0-21swapper/200:25:362
255157991411,2cyclictest0-21swapper/220:20:372
255157991411,1cyclictest0-21swapper/222:38:282
255157991411,1cyclictest0-21swapper/220:35:012
255156991412,2cyclictest351ktimers/119:15:341
255156991411,2cyclictest606602-21kthreadcore23:25:311
255156991411,2cyclictest376609-21kthreadcore20:45:321
255156991410,3cyclictest373094-21unixbench_singl20:40:381
255156991410,3cyclictest353724-21kthreadcore20:25:321
255156991410,3cyclictest326163-21kernelversion20:05:331
3153791133,2phc2sys0-21swapper/300:19:063
3153791130,3phc2sys0-21swapper/323:56:083
3153791130,2phc2sys0-21swapper/321:31:463
3153791130,1phc2sys0-21swapper/322:32:303
255157991311,1cyclictest0-21swapper/223:50:022
255157991311,1cyclictest0-21swapper/223:30:242
255157991311,1cyclictest0-21swapper/223:25:372
255157991311,1cyclictest0-21swapper/222:40:202
255157991311,1cyclictest0-21swapper/221:35:312
255157991311,1cyclictest0-21swapper/221:05:342
255157991311,1cyclictest0-21swapper/220:55:232
255157991311,1cyclictest0-21swapper/220:55:012
255157991311,1cyclictest0-21swapper/220:45:322
255157991311,1cyclictest0-21swapper/220:25:262
255157991311,1cyclictest0-21swapper/219:35:322
255157991311,1cyclictest0-21swapper/219:15:312
255157991311,1cyclictest0-21swapper/200:35:242
255157991311,1cyclictest0-21swapper/200:05:442
255157991310,1cyclictest0-21swapper/220:40:342
255157991310,1cyclictest0-21swapper/200:15:322
4208592120,2sleep30-21swapper/321:20:303
3153791123,1phc2sys0-21swapper/319:24:573
3153791121,2phc2sys0-21swapper/322:50:223
3153791120,2phc2sys0-21swapper/321:40:033
3153791120,2phc2sys0-21swapper/321:38:513
3153791120,2phc2sys0-21swapper/320:50:343
3153791120,2phc2sys0-21swapper/300:28:273
3153791120,1phc2sys0-21swapper/322:56:153
3153791120,1phc2sys0-21swapper/322:08:423
3153791120,1phc2sys0-21swapper/319:48:473
255157991210,1cyclictest0-21swapper/223:35:242
255157991210,1cyclictest0-21swapper/222:05:222
255157991210,1cyclictest0-21swapper/221:10:302
255157991210,1cyclictest0-21swapper/219:45:332
255157991210,1cyclictest0-21swapper/219:43:432
3153791112,2phc2sys0-21swapper/319:10:353
3153791111,2phc2sys0-21swapper/323:40:233
3153791111,2phc2sys0-21swapper/323:18:393
3153791110,3phc2sys0-21swapper/323:45:243
3153791110,3phc2sys0-21swapper/322:40:243
3153791110,2phc2sys0-21swapper/321:25:083
3153791110,1phc2sys0-21swapper/322:01:033
3153791110,1phc2sys0-21swapper/321:53:543
3153791110,1phc2sys0-21swapper/321:00:073
3153791110,1phc2sys0-21swapper/320:45:173
3153791110,1phc2sys0-21swapper/320:22:093
3153791110,1phc2sys0-21swapper/320:17:433
3153791110,1phc2sys0-21swapper/320:12:073
3153791102,3phc2sys0-21swapper/319:55:023
3153791102,1phc2sys0-21swapper/319:40:263
3153791101,2phc2sys0-21swapper/320:35:353
3153791101,2phc2sys0-21swapper/319:55:403
3153791100,6phc2sys398106-21chrt21:05:033
3153791100,2phc2sys0-21swapper/323:09:303
3153791100,2phc2sys0-21swapper/322:47:463
3153791100,2phc2sys0-21swapper/322:36:553
3153791100,2phc2sys0-21swapper/322:27:403
3153791100,2phc2sys0-21swapper/322:19:563
3153791100,2phc2sys0-21swapper/321:55:223
3153791100,2phc2sys0-21swapper/320:40:433
3153791100,2phc2sys0-21swapper/320:30:023
3153791100,2phc2sys0-21swapper/300:20:233
3153791100,1phc2sys0-21swapper/323:10:293
3153791100,1phc2sys0-21swapper/321:15:463
3153791100,1phc2sys0-21swapper/321:15:463
3153791100,1phc2sys0-21swapper/320:30:063
3153791100,1phc2sys0-21swapper/320:00:293
3153791100,1phc2sys0-21swapper/319:30:523
25515699107,2cyclictest0-21swapper/119:10:011
315379191,2phc2sys0-21swapper/322:10:583
315379190,3phc2sys0-21swapper/300:05:393
315379190,2phc2sys0-21swapper/323:50:293
315379190,2phc2sys0-21swapper/323:30:293
315379190,2phc2sys0-21swapper/323:00:073
315379190,2phc2sys0-21swapper/319:35:253
315379190,2phc2sys0-21swapper/319:15:333
315379190,2phc2sys0-21swapper/300:30:413
315379190,2phc2sys0-21swapper/300:10:253
315379190,1phc2sys0-21swapper/321:45:243
249318291,3sleep20-21swapper/219:05:262
315379181,1phc2sys0-21swapper/319:05:273
315379180,2phc2sys0-21swapper/323:35:263
315379180,2phc2sys0-21swapper/320:05:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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