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2026-08-11 - 18:58
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackeslot8.osadl.org (updated Tue Aug 11, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
113336621320,2sleep21133371-21gltestperf10:50:162
819064992622,1cyclictest0-21swapper/309:40:113
819064992522,1cyclictest0-21swapper/310:35:063
819064992422,1cyclictest0-21swapper/312:20:013
819064992320,1cyclictest0-21swapper/311:55:003
819064992320,1cyclictest0-21swapper/311:44:133
819064992320,1cyclictest0-21swapper/311:20:353
819064992320,1cyclictest0-21swapper/309:20:273
819064992311,9cyclictest859778-21turbostat07:44:553
8376842220,2sleep186188-21systemd-journal07:20:191
81906499222,15cyclictest832914-21taskset07:15:213
819064992219,1cyclictest0-21swapper/310:14:453
819064992219,1cyclictest0-21swapper/308:00:293
819064992219,1cyclictest0-21swapper/307:20:453
819064992119,1cyclictest0-21swapper/310:55:203
819064992118,1cyclictest0-21swapper/312:25:183
819064992118,1cyclictest0-21swapper/312:00:493
819064992118,1cyclictest0-21swapper/312:00:483
819064992118,1cyclictest0-21swapper/311:35:273
819064992118,1cyclictest0-21swapper/310:45:133
819064992118,1cyclictest0-21swapper/308:55:003
819064992118,1cyclictest0-21swapper/308:40:033
819064992118,1cyclictest0-21swapper/308:20:163
819064992118,1cyclictest0-21swapper/307:10:133
819064992017,1cyclictest0-21swapper/311:00:473
819064992017,1cyclictest0-21swapper/310:20:203
819064992017,1cyclictest0-21swapper/310:20:193
819064992017,1cyclictest0-21swapper/310:05:153
819064992017,1cyclictest0-21swapper/309:00:433
819064992017,1cyclictest0-21swapper/308:25:163
81906499201,14cyclictest885198-21taskset07:57:133
819064992010,7cyclictest879064-21sleep07:55:003
819064991916,1cyclictest0-21swapper/312:20:193
819064991916,1cyclictest0-21swapper/311:10:203
819064991916,1cyclictest0-21swapper/310:25:153
819064991916,1cyclictest0-21swapper/310:00:203
81906499191,14cyclictest1242862-21taskset11:58:453
81906499191,13cyclictest975218-21sleep09:10:003
81906499191,13cyclictest929601-21taskset08:30:263
81906499191,13cyclictest1101469-21taskset10:30:013
81906499191,13cyclictest1022580-21taskset09:40:013
81906499189,6cyclictest11951002sleep311:28:203
81906499182,13cyclictest1084075-21taskset10:16:143
81906499182,12cyclictest975482-21taskset09:10:033
819064991815,1cyclictest0-21swapper/311:46:383
819064991815,1cyclictest0-21swapper/311:15:183
819064991815,1cyclictest0-21swapper/310:40:133
81906499181,14cyclictest962054-21taskset08:56:113
81906499181,13cyclictest936319-21taskset08:35:433
81906499181,13cyclictest936319-21taskset08:35:423
81906499181,13cyclictest898142-21taskset08:08:283
81906499181,13cyclictest853621-21chrt07:35:133
81906499181,13cyclictest1305096-21taskset12:36:423
81906499181,13cyclictest1201399-21taskset11:30:233
81906499181,13cyclictest1014303-21taskset09:34:203
81906499181,13cyclictest1006335-21taskset09:28:583
81906499178,6cyclictest8724902sleep307:48:213
819064991714,1cyclictest0-21swapper/309:55:133
819064991714,1cyclictest0-21swapper/308:10:163
81906499171,13cyclictest905104-21taskset08:15:133
81906499171,13cyclictest840762-21taskset07:25:033
81906499171,13cyclictest1297928-21taskset12:33:413
81906499171,13cyclictest1139283-21taskset10:51:423
81906499171,12cyclictest988426-21taskset09:15:193
81906499171,12cyclictest852421-21taskset07:30:233
81906499171,12cyclictest1259833-21chrt12:10:163
81906499171,12cyclictest1162529-21taskset11:05:373
81906499171,12cyclictest1038520-21taskset09:50:043
81906499161,12cyclictest944802-21taskset08:45:163
81906499161,12cyclictest1030641-21taskset09:45:023
81906499161,11cyclictest1257668-21taskset12:05:563
12521112161,11sleep01253041-21irqstats12:05:210
9235682131,4sleep2222-21plymouthd08:25:442
10062202134,6sleep11006225-21diskmemload09:28:411
11986882121,8sleep21200395-21cut11:30:192
11830712123,6sleep11184549-21kthreadcore11:20:191
10728212124,5sleep01074684-21grep10:10:180
9480732117,2sleep1943368-21/usr/sbin/munin08:45:191
9369392111,3sleep2936972-21apt-get08:40:112
9245672111,7sleep10-21swapper/108:30:161
8668872110,9sleep1867320-21cut07:45:181
8347262111,7sleep20-21swapper/207:20:172
12819472111,7sleep21281953-21ssh12:22:522
12756192110,9sleep01276546-21sed12:20:170
12267112110,8sleep11226717-21ssh11:47:301
12262502110,8sleep21226245-21dpkg-deb11:46:422
12123062110,8sleep21213187-21cut11:40:172
11867032110,8sleep01186709-21ssh11:21:510
11863402110,8sleep21179922-21sendmail-msp11:20:482
11785822110,8sleep11178587-21sh11:16:231
10675922110,8sleep01067644-21ld10:05:220
10227902111,7sleep01022795-21ssh09:40:110
10070382111,7sleep01007043-21apt-get09:30:130
9899572100,2sleep0222-21plymouthd09:17:170
9822302105,2sleep20-21swapper/209:12:392
9369382100,1sleep10-21swapper/108:40:111
9305702101,4sleep00-21swapper/008:35:130
9305702101,4sleep00-21swapper/008:35:120
9127322105,2sleep2421rcuc/208:20:202
8600632100,7sleep0859801-21sendmail-msp07:40:120
81906499108,1cyclictest0-21swapper/307:10:003
8186282100,2sleep2222-21plymouthd07:05:472
12568762101,5sleep11256918-21ssh12:05:261
12516042101,5sleep21251639-21apt-get12:05:162
11476852100,7sleep21147691-21ssh10:58:122
11126512100,7sleep01114452-21grep10:35:210
11098512101,5sleep11110393-21sed10:35:171
10904992100,7sleep01090943-21missed_timers10:20:200
10904992100,7sleep01090943-21missed_timers10:20:200
10842572100,3sleep21084263-21ssh10:16:502
10697982100,3sleep21069856-21munin-run10:10:012
10559562103,4sleep11057236-21grep10:00:211
10385852100,7sleep11038694-21cpuspeed_turbos09:50:141
10370572100,2sleep0222-21plymouthd09:46:490
10133492100,7sleep21013355-21ssh09:31:482
996561291,5sleep0996642-21ntpq09:20:220
984868291,6sleep1981524-21kworker/u16:4+rpciod09:15:181
975183290,6sleep1975457-21tar09:10:021
967779291,5sleep1967825-21ntpq09:00:241
961471291,5sleep0961510-21ntp_states08:55:240
886684290,6sleep2887375-21grep08:00:182
879800291,4sleep0880718-21kernelversion07:55:190
879496291,5sleep2879684-21sed07:55:172
878126291,5sleep2878168-21ntpq07:50:242
871726291,5sleep0871768-21ntpq07:45:250
863210291,6sleep2864821-21cut07:40:172
860211290,6sleep1859801-21sendmail-msp07:40:121
853584291,4sleep1853617-21apt-get07:35:111
847764291,4sleep1848621-21sort07:30:181
833026291,5sleep0833067-21ntpq07:15:220
820670290,2sleep10-21swapper/107:10:181
818032291,4sleep1818071-21ntpq07:05:221
1299083290,6sleep01299256-21interrupts12:35:160
1297183290,2sleep11297189-21ssh12:31:411
1273962291,5sleep11273967-21sh12:17:451
1249068290,6sleep20-21swapper/212:00:272
1249068290,6sleep20-21swapper/212:00:262
1235431290,2sleep0222-21plymouthd11:54:590
1225985291,5sleep01225996-21systemd11:46:320
1155013290,2sleep1222-21plymouthd11:01:311
1150347290,6sleep21151680-21kthreadcore11:00:192
1147721290,2sleep0222-21plymouthd10:58:180
1123867290,3sleep11123871-21ssh10:42:221
1115397290,2sleep2222-21plymouthd10:35:422
1101571291,4sleep21101574-21apt-get10:30:132
1099579291,5sleep11099585-21ssh10:25:301
1092073290,7sleep21092077-21ssh10:21:312
1092073290,7sleep21092077-21ssh10:21:302
1087023291,5sleep11087778-21cut10:20:181
1087023291,5sleep11087778-21cut10:20:171
1068522290,2sleep11068528-21ssh10:06:311
1061877296,1sleep00-21swapper/010:04:530
1057239290,6sleep21058621-21kthreadcore10:00:222
1038966291,5sleep01039402-21cut09:50:170
1030748290,6sleep21030779-21grep09:45:142
1028098290,6sleep2222-21plymouthd09:40:212
999596280,5sleep0999733-21grep09:25:150
983375281,4sleep2983413-21ssh09:15:112
974381281,4sleep2974496-21python309:05:252
955096280,5sleep1955143-21ps08:50:251
953202280,5sleep0954798-21/usr/sbin/munin08:50:200
949665280,5sleep2949788-21appstreamcli08:50:022
936404280,1sleep10-21swapper/108:36:491
936404280,1sleep10-21swapper/108:36:491
929294281,4sleep2929350-21ntpq08:30:222
917485280,5sleep0222-21plymouthd08:24:370
904481280,1sleep20-21swapper/208:12:542
846601280,2sleep1222-21plymouthd07:26:061
833913280,2sleep2222-21plymouthd07:19:102
818626280,4sleep0222-21plymouthd07:05:450
1304011281,4sleep21304056-21ntpq12:35:222
1297384282,3sleep0222-21plymouthd12:32:120
1290141280,2sleep21290147-21ssh12:28:522
1249025281,4sleep11249066-21ntpq12:00:261
1249025281,4sleep11249066-21ntpq12:00:251
1243161280,2sleep11243167-21ssh11:59:321
1241218281,4sleep0936410-21kworker/u16:0+ext4-rsv-conversion11:55:260
1237357281,4sleep21238944-21tail11:55:202
1219404280,6sleep01219562-21latency_hist11:45:010
1209216281,4sleep11209253-21ntpq11:35:231
1202068280,2sleep10-21swapper/111:30:511
1157027280,5sleep21157211-21irqcore11:05:182
1139479280,1sleep10-21swapper/110:52:131
1132633281,4sleep11-21systemd10:50:001
1130740280,5sleep21130973-21ssh10:45:282
1130278280,6sleep01130370-21ssh10:45:230
1117493281,4sleep21117590-21fschecks_time10:40:162
1108361281,4sleep11108367-21ssh10:33:001
1099742280,2sleep21099744-21ssh10:25:562
1099651281,1sleep0222-21plymouthd10:25:410
1075425281,4sleep11075458-21ntpq10:10:231
1053976281,4sleep01053998-21apt10:00:000
1048851281,4sleep21050553-21cut09:55:202
1037678280,1sleep10-21swapper/109:48:341
996649271,4sleep1874-21rs:main1
991288271,3sleep2991323-21apt-get09:20:132
981954270,4sleep0222-21plymouthd09:11:560
974889270,4sleep0222-21plymouthd09:06:150
962676271,3sleep0962412-21sendmail-msp09:00:150
948957270,4sleep0949142-21users08:45:260
942263271,3sleep0936713-21sendmail-msp08:40:260
923771270,1sleep10-21swapper/108:28:231
922967271,4sleep0923010-21ntpq08:25:260
911364270,4sleep1911512-21/usr/sbin/munin08:20:141
910625271,3sleep0222-21plymouthd08:15:270
904441270,3sleep0222-21plymouthd08:12:240
892192271,3sleep1892348-21diskstats08:05:141
858796271,3sleep0858831-21ntpq07:35:220
853620271,2sleep20-21swapper/207:35:132
847214271,3sleep0222-21plymouthd07:30:130
846642270,1sleep00-21swapper/007:26:360
833852270,1sleep10-21swapper/107:18:241
1297074270,4sleep21297080-21ssh12:31:182
1267485270,1sleep00-21swapper/012:15:150
1265631271,4sleep21265635-21ssh12:11:242
1259492271,3sleep11259654-21diskstats12:10:151
1233235270,4sleep11233278-21ntp_states11:50:231
1215106271,3sleep11216564-21grep11:40:211
1194425270,1sleep20-21swapper/211:26:262
1178381270,1sleep20-21swapper/211:15:522
1164936271,4sleep1222-21plymouthd11:10:171
1164478270,4sleep21164636-21diskstats11:10:142
1161873272,3sleep0151ktimers/011:05:230
1141290270,4sleep11142091-21sed10:55:181
1134402270,4sleep01135896-21kthreadcore10:50:190
1122646271,3sleep01122679-21ntp_states10:40:250
1106852271,3sleep01106899-21ntpq10:30:230
1083984270,1sleep10-21swapper/110:16:011
1083168271,4sleep01083219-21ld10:15:230
1051743270,4sleep11051792-21ntpq09:55:241
1022408271,3sleep1222-21plymouthd09:40:001
1017097271,3sleep01018719-21kthreadcore09:35:230
1014941271,2sleep20-21swapper/209:35:162
968442260,3sleep2962412-21sendmail-msp09:00:492
962067260,2sleep1222-21plymouthd08:56:221
957361260,3sleep2958380-21cut08:55:182
949391260,2sleep2222-21plymouthd08:48:332
936603260,3sleep2222-21plymouthd08:39:232
936603260,3sleep2222-21plymouthd08:39:232
927355260,3sleep0929117-21/usr/sbin/munin08:30:190
911010260,1sleep20-21swapper/208:19:382
910776261,2sleep1222-21plymouthd08:16:411
897912260,1sleep00-21swapper/008:05:290
897372261,3sleep2897412-21ntpq08:05:232
885704260,4sleep00-21swapper/008:00:130
885695261,3sleep186188-21systemd-journal08:00:061
880721261,2sleep10-21swapper/107:55:201
878667260,1sleep10-21swapper/107:50:321
847164260,2sleep2222-21plymouthd07:30:032
846756260,1sleep20-21swapper/207:28:082
836276261,2sleep00-21swapper/007:20:190
825197260,1sleep00-21swapper/007:11:570
825121260,3sleep2222-21plymouthd07:10:592
1304982260,1sleep10-21swapper/112:36:251
1288194260,3sleep01288286-21ntpq12:25:210
1281596260,2sleep1222-21plymouthd12:21:511
1266170260,2sleep0222-21plymouthd12:12:510
1250383260,4sleep0222-21plymouthd12:02:320
1250383260,4sleep0222-21plymouthd12:02:320
1228402261,2sleep21228580-21irqcore11:50:162
1210014260,3sleep21210016-21ssh11:36:002
1203921261,3sleep01204079-21df_inode11:35:140
1196080260,3sleep00-21swapper/011:30:130
1190547260,3sleep11192217-21kthreadcore11:25:201
1188149261,2sleep00-21swapper/011:25:110
1172330261,2sleep00-21swapper/011:15:130
1164438261,2sleep00-21swapper/011:10:120
1155554260,1sleep00-21swapper/011:03:020
1077439260,1sleep20-21swapper/210:14:332
1038518260,3sleep21038241-21apt-get09:50:032
1029606260,1sleep10-21swapper/109:42:561
1012946260,3sleep11012952-21ssh09:30:381
1000652261,2sleep20-21swapper/209:25:172
969054250,2sleep10-21swapper/109:05:121
901272250,3sleep1903121-21cut08:10:201
878209250,2sleep0222-21plymouthd07:50:270
871809250,2sleep2222-21plymouthd07:45:272
1288508250,3sleep11288646-21ssh12:25:261
1273451250,2sleep2222-21plymouthd12:16:172
1156821250,3sleep11156609-21/usr/sbin/munin11:05:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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