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2026-04-29 - 11:15
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Wed Apr 29, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121442421200,1sleep00-21swapper/023:30:360
12324082980,2sleep20-21swapper/223:40:402
8960162660,4sleep0896008-21irqcore19:45:350
847334992825,1cyclictest0-21swapper/220:35:012
847333992615,3cyclictest1027993-21kthreadcore21:25:391
847332992514,6cyclictest1056335-21irqrtprio21:45:360
847332992510,7cyclictest1084851-21basename22:05:000
847333992421,2cyclictest1145451-21latency_hist22:45:001
847333992420,3cyclictest3827634-1atopacctd20:50:011
847333992415,2cyclictest0-21swapper/123:25:011
847332992421,2cyclictest1310412-21idleruntime-cro00:35:000
847332992315,7cyclictest1290-21dbus-daemon22:35:010
847332992315,7cyclictest1290-21dbus-daemon22:35:010
847332992314,5cyclictest1026720-21kthreadcore21:25:380
847334992219,1cyclictest0-21swapper/219:24:362
847334992219,1cyclictest0-21swapper/219:15:012
847333992219,2cyclictest957484-21cron20:35:001
847333992213,2cyclictest0-21swapper/123:55:011
847332992219,2cyclictest1039551-21ssh21:35:010
847332992219,2cyclictest1039551-21ssh21:35:010
847332992216,2cyclictest17350irq/127-ahci[0000:00:17.0]19:55:000
847332992215,6cyclictest1111896-21kthreadcore22:20:380
847332992214,3cyclictest1996-21runrttasks21:41:320
847332992213,5cyclictest1240546-21kthreadcore23:45:390
847334992118,1cyclictest0-21swapper/219:20:002
847333992117,3cyclictest1290-21dbus-daemon21:05:021
84733299219,11cyclictest0-21swapper/022:10:310
847332992118,2cyclictest0-21swapper/021:25:000
847332992113,4cyclictest1151154-21sendmail_mailst22:45:430
847332992112,5cyclictest0-21swapper/000:40:020
847332992110,6cyclictest0-21swapper/023:00:000
847333992018,1cyclictest888417-21sendmail19:40:001
847333992017,2cyclictest1290-21dbus-daemon23:10:011
847333992017,2cyclictest1131522-21grep22:35:341
847333992017,2cyclictest1040888-21grep21:35:331
847333992017,2cyclictest1024532-21latency_hist21:25:011
84733299209,6cyclictest1287924-21munin-plugin-st00:20:000
84733299209,6cyclictest0-21swapper/023:20:290
847332992017,2cyclictest1296-21polkitd19:24:410
847332992013,6cyclictest3851702-21mta-sts-daemon22:07:580
847332992013,6cyclictest1073233-21kthreadcore21:55:400
847332992010,6cyclictest1176450-21df23:05:330
847332992010,6cyclictest1154167-21hddtemp_smartct22:50:360
847334991916,1cyclictest0-21swapper/222:05:012
84733399196,2cyclictest1-21systemd00:10:011
847333991916,2cyclictest1288385-21acpi00:20:301
847333991916,2cyclictest1288128-21sh00:20:011
847333991916,2cyclictest1278630-21mailstats00:10:431
847333991916,2cyclictest1206751-21if_enp1s0.823:25:371
847333991916,2cyclictest1130708-21systemd-run22:35:011
847333991916,2cyclictest1130708-21systemd-run22:35:011
847333991914,1cyclictest501rcuop/223:41:051
847333991910,4cyclictest0-21swapper/123:10:331
84733299199,5cyclictest0-21swapper/023:55:380
847332991916,2cyclictest996332-21fschecks_time21:05:350
847332991916,2cyclictest3841370-21avahi-daemon20:35:020
847332991916,2cyclictest1296-21polkitd19:25:060
847332991916,2cyclictest1274706-21kthreadcore00:10:380
847332991916,2cyclictest1267231-21kthreadcore00:05:380
847332991916,2cyclictest1192190-21kthreadcore23:15:370
847332991915,3cyclictest913556-21latency_hist20:00:000
847332991915,3cyclictest884904-21kthreadcore19:35:390
847332991915,3cyclictest1118568-21kthreadcore22:25:390
847332991912,6cyclictest913965-21aten2.4-expect20:00:310
847332991912,6cyclictest1040188-21/usr/sbin/munin21:35:340
847332991911,4cyclictest923494-21cut20:05:380
847332991910,5cyclictest1248519-21ssh23:50:410
847332991910,5cyclictest0-21swapper/021:15:320
11151412190,2sleep20-21swapper/222:24:572
847334991815,1cyclictest0-21swapper/221:35:002
847334991815,1cyclictest0-21swapper/221:35:002
847334991815,1cyclictest0-21swapper/221:25:002
847334991815,1cyclictest0-21swapper/220:45:002
847334991815,1cyclictest0-21swapper/200:00:002
847334991814,2cyclictest0-21swapper/200:22:402
84733399185,4cyclictest0-21swapper/119:55:311
84733399185,3cyclictest1039486-21awk21:35:001
84733399185,3cyclictest1039486-21awk21:35:001
847333991815,2cyclictest1243231-21grep23:50:021
847333991815,2cyclictest1222248-21kthreadcore23:35:371
847333991815,2cyclictest1218656-21mailstats23:30:431
847333991815,2cyclictest1115318-21grep22:25:011
847333991815,2cyclictest1090527-21ptp4l22:05:421
847333991815,2cyclictest0-21swapper/119:15:011
847333991814,3cyclictest1100981-21fschecks_time22:15:351
84733399180,1cyclictest0-21swapper/122:11:051
84733299189,5cyclictest1139021-21grep22:40:350
84733299189,2cyclictest3851704-21mta-sts-daemon20:52:190
84733299188,5cyclictest1106641-21ssh22:17:450
84733299187,7cyclictest1221567-21fschecks_time23:35:340
84733299187,6cyclictest995104-21munin-run21:05:000
847332991815,2cyclictest973251-21kthreadcore20:45:400
847332991815,2cyclictest959139-21kthreadcore20:35:370
847332991815,2cyclictest946590-21kthreadcore20:25:380
847332991815,2cyclictest1208817-21kthreadcore23:25:390
847332991815,2cyclictest1063402-21cut21:50:360
847332991815,2cyclictest1002770-21grep21:10:360
847332991814,3cyclictest1299018-21kthreadcore00:25:390
847332991813,4cyclictest1232683-21kthreadcore23:40:400
847332991810,5cyclictest1133250-21kthreadcore22:35:380
84733299180,17cyclictest1188164-21kthreadcore23:10:420
2649091181,3phc2sys0-21swapper/319:40:313
2649091180,2phc2sys0-21swapper/323:57:063
2649091180,2phc2sys0-21swapper/321:37:573
2649091180,2phc2sys0-21swapper/300:19:553
84733499171,8cyclictest0-21swapper/223:15:302
84733499171,8cyclictest0-21swapper/221:40:012
847334991715,1cyclictest0-21swapper/223:10:392
847334991715,1cyclictest0-21swapper/200:30:022
847334991714,1cyclictest0-21swapper/223:05:422
847334991714,1cyclictest0-21swapper/222:55:002
847334991714,1cyclictest0-21swapper/222:10:422
847334991714,1cyclictest0-21swapper/222:05:442
847334991714,1cyclictest0-21swapper/221:25:422
847334991714,1cyclictest0-21swapper/221:05:002
847334991714,1cyclictest0-21swapper/200:00:382
84733399179,2cyclictest134050irq/121-eno119:25:321
84733399172,4cyclictest895096-21aten2.4-expect19:45:301
847333991714,2cyclictest914263-21tr20:00:321
847333991714,2cyclictest1290-21dbus-daemon19:35:011
847333991714,2cyclictest1290-21dbus-daemon00:05:001
847333991714,2cyclictest1147238-21kernelversion22:45:371
847333991714,2cyclictest0-21swapper/123:05:001
847333991714,2cyclictest0-21swapper/122:00:011
847333991713,3cyclictest1192190-21kthreadcore23:15:381
847333991711,4cyclictest888872-21tail19:40:321
84733299179,5cyclictest877849-21kthreadcore19:30:370
84733299179,4cyclictest0-21swapper/000:20:300
84733299176,5cyclictest856527-21tr19:15:320
847332991714,2cyclictest984976-21kthreadcore20:55:390
847332991714,2cyclictest965411-21kthreadcore20:40:380
847332991714,2cyclictest943199-21kthreadcore20:20:390
847332991714,2cyclictest932396-21munin-plugin-st20:15:000
847332991714,2cyclictest890266-21kthreadcore19:40:370
847332991714,2cyclictest854668-21kthreadcore19:15:020
847332991714,2cyclictest1258284-21sh00:00:110
847332991714,2cyclictest1171136-21kthreadcore23:00:380
383433398170,2rtkit-daemon0-21swapper/120:57:101
2649091170,2phc2sys0-21swapper/322:32:293
2649091170,2phc2sys0-21swapper/322:32:293
2649091170,2phc2sys0-21swapper/322:18:373
847334991614,1cyclictest0-21swapper/221:45:022
847334991614,1cyclictest0-21swapper/220:20:012
847334991613,1cyclictest0-21swapper/223:55:012
847334991613,1cyclictest0-21swapper/223:29:462
847334991613,1cyclictest0-21swapper/222:39:552
847334991613,1cyclictest0-21swapper/220:50:412
847334991613,1cyclictest0-21swapper/219:55:322
847334991613,1cyclictest0-21swapper/219:55:012
847334991613,1cyclictest0-21swapper/219:45:432
847334991613,1cyclictest0-21swapper/219:35:002
847334991612,2cyclictest0-21swapper/222:55:372
84733399168,1cyclictest134050irq/121-eno100:31:061
84733399166,8cyclictest907261-21systemd-run19:55:001
84733399166,3cyclictest0-21swapper/122:57:541
84733399166,3cyclictest0-21swapper/121:45:301
84733399164,2cyclictest134050irq/121-eno122:50:321
84733399161,4cyclictest1080969-21cut22:00:381
84733399161,3cyclictest1001888-21taskset21:10:031
847333991613,2cyclictest938870-21munin-plugin-st20:20:021
847333991613,2cyclictest847323-21cyclictest19:24:381
847333991613,2cyclictest3851704-21mta-sts-daemon21:51:471
847333991613,2cyclictest1302952-21latency_hist00:30:001
847333991613,2cyclictest1122663-21sh22:30:001
847333991613,2cyclictest1048352-21fschecks_count21:40:351
847333991612,2cyclictest0-21swapper/120:10:011
847332991613,2cyclictest936349-21kthreadcore20:15:370
383433398160,2rtkit-daemon0-21swapper/120:22:451
2649091160,3phc2sys0-21swapper/321:55:403
2649091160,3phc2sys0-21swapper/321:23:423
2649091160,2phc2sys0-21swapper/323:21:463
2649091160,2phc2sys0-21swapper/323:03:503
2649091160,2phc2sys0-21swapper/322:39:553
2649091160,2phc2sys0-21swapper/321:27:183
2649091160,1phc2sys0-21swapper/321:49:513
84733499152,7cyclictest0-21swapper/222:50:012
847334991513,1cyclictest0-21swapper/219:25:022
847334991513,1cyclictest0-21swapper/200:05:102
847334991512,1cyclictest0-21swapper/223:45:302
847334991512,1cyclictest0-21swapper/223:00:362
847334991512,1cyclictest0-21swapper/221:12:362
847334991512,1cyclictest0-21swapper/220:50:002
847334991512,1cyclictest0-21swapper/220:05:532
847334991512,1cyclictest0-21swapper/200:35:342
847334991512,1cyclictest0-21swapper/200:15:112
84733399158,5cyclictest134050irq/121-eno121:17:471
84733399158,1cyclictest491rcuog/220:25:021
84733399155,3cyclictest1061633-21kworker/u16:0+rpciod23:55:301
84733399154,4cyclictest926598-21aten2.4-expect20:10:321
847333991512,2cyclictest847323-21cyclictest20:40:391
847333991512,2cyclictest1316395-21mailstats00:35:421
847333991512,2cyclictest0-21swapper/120:55:021
84733299159,3cyclictest0-21swapper/019:10:020
2649091151,2phc2sys0-21swapper/319:15:013
2649091150,4phc2sys0-21swapper/319:25:323
2649091150,3phc2sys0-21swapper/322:28:353
2649091150,3phc2sys0-21swapper/300:08:473
2649091150,2phc2sys0-21swapper/322:48:563
2649091150,2phc2sys0-21swapper/321:00:333
2649091150,2phc2sys0-21swapper/300:39:413
84733499142,9cyclictest1130426-21chrt22:34:582
84733499142,9cyclictest1130426-21chrt22:34:582
84733499141,3cyclictest0-21swapper/219:40:022
847334991412,1cyclictest0-21swapper/220:15:022
847334991411,2cyclictest0-21swapper/222:45:012
847334991411,1cyclictest0-21swapper/223:20:322
847334991411,1cyclictest0-21swapper/221:50:382
847334991411,1cyclictest0-21swapper/221:07:532
847334991411,1cyclictest0-21swapper/220:30:002
847334991411,1cyclictest0-21swapper/220:20:342
847334991410,2cyclictest0-21swapper/222:30:022
84733399145,1cyclictest383433398rtkit-daemon21:08:521
84733399141,5cyclictest957812-21/usr/sbin/munin20:35:371
847333991410,3cyclictest3851705-21mta-sts-daemon19:19:581
2649091143,3phc2sys0-21swapper/319:35:423
2649091142,2phc2sys0-21swapper/320:15:333
2649091140,4phc2sys0-21swapper/322:13:523
2649091140,2phc2sys0-21swapper/323:07:323
2649091140,2phc2sys0-21swapper/321:30:153
2649091140,2phc2sys0-21swapper/321:30:153
2649091140,2phc2sys0-21swapper/321:19:173
2649091140,2phc2sys0-21swapper/319:58:583
2649091140,1phc2sys0-21swapper/323:15:453
2649091140,1phc2sys0-21swapper/320:44:383
84733499131,1cyclictest0-21swapper/200:10:312
847334991311,1cyclictest0-21swapper/223:30:392
847334991311,1cyclictest0-21swapper/222:15:382
847334991311,1cyclictest0-21swapper/221:45:382
847334991311,1cyclictest0-21swapper/200:30:332
847334991310,1cyclictest0-21swapper/223:35:342
847334991310,1cyclictest0-21swapper/220:55:402
847334991310,1cyclictest0-21swapper/220:35:382
847334991310,1cyclictest0-21swapper/220:00:372
84733499130,8cyclictest0-21swapper/222:00:012
2649091130,4phc2sys0-21swapper/320:25:313
2649091130,2phc2sys0-21swapper/323:50:363
2649091130,2phc2sys0-21swapper/300:34:213
2649091130,2phc2sys0-21swapper/300:13:043
2649091130,1phc2sys0-21swapper/319:46:353
84733499121,7cyclictest0-21swapper/219:10:012
847334991210,1cyclictest0-21swapper/221:20:002
847334991210,1cyclictest0-21swapper/219:45:012
2649091123,2phc2sys0-21swapper/319:24:403
2649091123,2phc2sys0-21swapper/319:05:403
2649091121,5phc2sys0-21swapper/320:50:303
2649091120,4phc2sys0-21swapper/300:21:363
2649091120,3phc2sys0-21swapper/323:10:323
2649091120,3phc2sys0-21swapper/322:50:323
2649091120,2phc2sys0-21swapper/322:42:393
2649091120,2phc2sys0-21swapper/300:30:003
2649091120,1phc2sys0-21swapper/319:51:493
84733399114,5cyclictest1290-21dbus-daemon19:10:021
2649091112,2phc2sys0-21swapper/319:30:373
2649091111,2phc2sys0-21swapper/323:31:173
2649091111,2phc2sys0-21swapper/322:20:303
2649091111,1phc2sys0-21swapper/320:38:333
2649091110,2phc2sys0-21swapper/320:55:323
2649091110,1phc2sys0-21swapper/321:51:153
2649091110,1phc2sys0-21swapper/320:47:553
2649091102,2phc2sys0-21swapper/323:37:063
2649091102,2phc2sys0-21swapper/322:01:063
2649091101,2phc2sys0-21swapper/323:46:443
2649091101,2phc2sys0-21swapper/323:25:193
2649091101,2phc2sys0-21swapper/321:42:223
2649091101,2phc2sys0-21swapper/320:00:303
2649091101,2phc2sys0-21swapper/319:15:303
2649091100,2phc2sys0-21swapper/323:40:343
2649091100,2phc2sys0-21swapper/322:06:153
2649091100,2phc2sys0-21swapper/321:10:273
2649091100,2phc2sys0-21swapper/320:21:273
2649091100,2phc2sys0-21swapper/320:14:243
2649091100,2phc2sys0-21swapper/320:07:403
2649091100,2phc2sys0-21swapper/300:02:313
264909190,2phc2sys0-21swapper/322:55:253
264909190,2phc2sys0-21swapper/321:05:023
264909190,1phc2sys0-21swapper/320:30:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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