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2026-08-19 - 17:33
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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 Aug 19, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138019821190,2sleep30-21swapper/310:55:023
138019821190,2sleep30-21swapper/310:55:023
123674621000,2sleep30-21swapper/309:15:303
12915912970,2sleep30-21swapper/309:55:063
14762502700,1sleep11476249-21ssh11:58:571
1080197992922,2cyclictest69250irq/121-eno110:45:131
1080196992815,8cyclictest1224780-21irqrtprio09:10:090
1080196992716,6cyclictest0-21swapper/008:35:010
1080197992614,6cyclictest0-21swapper/109:30:101
1080196992616,6cyclictest1233036-21kthreadcore09:15:110
1080197992514,6cyclictest0-21swapper/111:50:021
1080197992514,6cyclictest0-21swapper/111:05:101
1080197992514,3cyclictest1306-21mta-sts-daemon10:15:021
1080197992513,3cyclictest0-21swapper/110:04:481
1080197992421,2cyclictest664-21dbus-daemon11:25:011
1080197992421,2cyclictest1-21systemd12:40:011
1080196992413,6cyclictest0-21swapper/009:55:010
1080196992413,6cyclictest0-21swapper/009:55:010
3240591230,7phc2sys0-21swapper/311:34:483
1080197992314,5cyclictest1034-21runrttasks09:21:231
1080197992311,6cyclictest0-21swapper/109:20:021
1080197992219,2cyclictest838-21gmain07:15:031
1080197992212,2cyclictest0-21swapper/111:15:021
1080196992219,2cyclictest1305818-21aten_repower_vo10:05:010
1080196992214,5cyclictest1034-21runrttasks12:14:070
1080196992210,6cyclictest0-21swapper/011:59:490
1080198992118,1cyclictest0-21swapper/212:05:012
1080198992118,1cyclictest0-21swapper/212:05:012
108019799219,4cyclictest0-21swapper/111:00:011
1080197992118,2cyclictest1491974-21cron12:10:011
1080197992118,2cyclictest1454584-21latency_hist11:45:011
1080197992118,2cyclictest0-21swapper/110:40:011
1080197992111,3cyclictest0-21swapper/112:15:021
1080196992118,2cyclictest1514296-21/usr/sbin/munin12:25:010
1080196992118,2cyclictest1134875-21kthreadcore07:55:100
1080196992118,2cyclictest0-21swapper/011:40:030
1080196992118,2cyclictest0-21swapper/007:45:010
1080196992117,3cyclictest1338704-21kthreadcore10:25:100
1080196992117,3cyclictest1271116-21kthreadcore09:40:110
1080196992117,3cyclictest1210468-21timerwakeupswit08:55:160
1080196992114,6cyclictest1261005-21latency_hist09:35:030
1080196992113,7cyclictest0-21swapper/012:20:010
1080196992111,5cyclictest0-21swapper/009:45:110
1080196992110,6cyclictest0-21swapper/010:10:020
1080198992018,1cyclictest0-21swapper/212:35:032
1080198992018,1cyclictest0-21swapper/212:35:032
1080198992018,1cyclictest0-21swapper/208:00:032
1080197992017,2cyclictest1335879-21sh10:25:021
1080197992014,2cyclictest69250irq/121-eno109:45:021
1080197992011,3cyclictest0-21swapper/109:14:481
1080197992010,2cyclictest684-21systemd-logind10:35:031
1080196992017,2cyclictest664-21dbus-daemon11:45:030
1080196992017,2cyclictest1220239-21kthreadcore09:05:120
1080196992017,2cyclictest1128797-21kthreadcore07:50:100
1080196992017,2cyclictest1080194-21cyclictest09:24:300
1080196992012,7cyclictest0-21swapper/011:10:010
1080196992011,5cyclictest0-21swapper/012:25:140
1080196992011,3cyclictest1309-21mta-sts-daemon09:57:480
1080196992010,6cyclictest0-21swapper/011:30:080
108019899191,8cyclictest0-21swapper/211:10:012
1080198991917,1cyclictest0-21swapper/212:40:012
1080198991917,1cyclictest0-21swapper/209:20:022
108019799198,6cyclictest0-21swapper/107:37:001
108019799196,8cyclictest1211418-21latency_hist09:00:021
1080197991916,2cyclictest1529203-21/usr/sbin/munin12:35:021
1080197991916,2cyclictest1529203-21/usr/sbin/munin12:35:021
1080197991916,2cyclictest0-21swapper/112:30:021
1080197991914,3cyclictest1359293-21kthreadcore10:40:101
1080197991912,2cyclictest0-21swapper/111:35:011
1080197991911,3cyclictest0-21swapper/111:16:591
108019699199,5cyclictest0-21swapper/010:15:090
108019699199,5cyclictest0-21swapper/008:55:020
1080196991916,2cyclictest1530580-21kthreadcore12:35:090
1080196991916,2cyclictest1479281-21kthreadcore12:00:120
1080196991916,2cyclictest1479281-21kthreadcore12:00:120
1080196991916,2cyclictest1388957-21kthreadcore11:00:100
1080196991916,2cyclictest1351942-21kernelversion10:35:080
1080196991916,2cyclictest1164061-21kthreadcore08:20:090
1080196991916,2cyclictest1098423-21kthreadcore07:25:100
1080196991915,3cyclictest1490258-21sh12:05:330
1080196991914,1cyclictest191rcu_preempt12:31:350
1080196991914,1cyclictest191rcu_preempt12:31:350
1080196991911,4cyclictest0-21swapper/008:35:100
1080196991910,5cyclictest1375808-21grep10:50:090
1080196991910,5cyclictest1375808-21grep10:50:090
1080196991910,5cyclictest0-21swapper/011:15:070
3240591180,5phc2sys0-21swapper/310:48:063
3240591180,2phc2sys0-21swapper/312:31:543
3240591180,2phc2sys0-21swapper/312:31:543
3240591180,1phc2sys0-21swapper/307:35:173
3240591180,1phc2sys0-21swapper/307:29:483
1080198991816,1cyclictest0-21swapper/211:30:012
1080198991816,1cyclictest0-21swapper/211:00:092
1080198991816,1cyclictest0-21swapper/209:10:032
1080198991815,1cyclictest0-21swapper/209:40:112
1080198991815,1cyclictest0-21swapper/207:15:012
108019799187,3cyclictest0-21swapper/111:35:161
108019799186,2cyclictest1432010-21munin-run11:30:001
108019799185,4cyclictest0-21swapper/112:20:101
108019799181,8cyclictest1328010-21munin-run10:20:011
1080197991815,2cyclictest664-21dbus-daemon10:10:021
1080197991815,2cyclictest1477570-21fschecks_count12:00:081
1080197991815,2cyclictest1477570-21fschecks_count12:00:081
1080197991815,2cyclictest1463135-21irqcore11:50:071
1080197991815,2cyclictest1205174-21munin-plugin-st08:55:011
1080197991812,4cyclictest1-21systemd08:35:021
1080196991816,1cyclictest1383044-21kthreadcore10:55:120
1080196991815,2cyclictest664-21dbus-daemon07:15:020
1080196991815,2cyclictest1405272-21kthreadcore11:10:110
1080196991815,2cyclictest1317942-21kthreadcore10:10:120
1080196991815,2cyclictest1300-21mta-sts-daemon07:30:100
1080196991815,2cyclictest1246978-21irqcore09:25:090
1080196991815,2cyclictest1113728-21sendmail07:40:010
1080196991815,2cyclictest1095505-21latency_hist07:25:020
1080196991815,2cyclictest0-21swapper/009:05:020
1080196991814,3cyclictest1139620-21irqrtprio08:00:090
1080196991814,3cyclictest1139620-21irqrtprio08:00:090
1080196991811,6cyclictest0-21swapper/011:45:090
1080196991810,3cyclictest1080194-21cyclictest10:30:380
3240591171,1phc2sys0-21swapper/310:07:313
3240591170,4phc2sys0-21swapper/312:30:023
3240591170,2phc2sys0-21swapper/311:40:043
1080198991715,1cyclictest0-21swapper/211:50:032
1080198991714,1cyclictest0-21swapper/211:55:062
1080198991714,1cyclictest0-21swapper/211:35:012
1080198991714,1cyclictest0-21swapper/210:43:112
1080198991714,1cyclictest0-21swapper/208:05:022
1080198991714,1cyclictest0-21swapper/208:05:022
108019799179,3cyclictest0-21swapper/109:01:011
108019799177,6cyclictest0-21swapper/108:27:521
108019799176,3cyclictest0-21swapper/110:50:141
108019799176,3cyclictest0-21swapper/110:50:141
1080197991714,2cyclictest1283274-21sh09:50:001
1080197991714,2cyclictest1161106-21kthreadcore08:15:111
1080197991713,3cyclictest1198340-21timerwakeupswit08:45:161
1080197991711,4cyclictest1-21systemd09:40:031
108019699178,2cyclictest0-21swapper/011:27:500
108019699178,2cyclictest0-21swapper/009:36:110
1080196991714,2cyclictest1423322-21sh11:22:000
1080196991714,2cyclictest1358533-21fschecks_count10:40:060
1080196991714,2cyclictest1329442-21irqcore10:20:090
1080196991714,2cyclictest1190793-21kthreadcore08:40:100
1080196991714,2cyclictest1171628-21kthreadcore08:25:110
1080196991714,2cyclictest1122724-21kthreadcore07:45:110
1080196991714,2cyclictest1086221-21latency_hist07:15:030
3240591160,3phc2sys0-21swapper/307:24:473
3240591160,2phc2sys0-21swapper/311:13:513
108019899161,7cyclictest0-21swapper/210:20:012
1080198991614,1cyclictest0-21swapper/211:20:052
1080198991614,1cyclictest0-21swapper/210:10:022
1080198991613,1cyclictest0-21swapper/210:55:112
1080198991613,1cyclictest0-21swapper/209:26:002
1080198991613,1cyclictest0-21swapper/207:50:022
1080198991612,2cyclictest0-21swapper/211:11:092
108019799165,6cyclictest0-21swapper/110:29:021
108019799165,2cyclictest69250irq/121-eno111:05:011
1080197991614,1cyclictest0-21swapper/109:50:081
1080197991614,1cyclictest0-21swapper/109:50:081
1080197991613,2cyclictest664-21dbus-daemon09:30:021
1080197991613,2cyclictest0-21swapper/107:30:011
1080197991612,3cyclictest1189863-21kthreadcore08:40:101
1080197991612,3cyclictest1181322-21cstates08:35:051
1080197991612,3cyclictest1152475-21kthreadcore08:10:091
1080197991612,3cyclictest1146025-21kthreadcore08:05:101
1080197991612,3cyclictest1119065-21timerwakeupswit07:40:161
108019699168,2cyclictest0-21swapper/011:54:570
108019699168,2cyclictest0-21swapper/010:45:570
1080196991613,2cyclictest1195544-21kthreadcore08:45:100
1080196991612,3cyclictest1-21systemd08:20:000
3240591155,2phc2sys0-21swapper/307:45:153
3240591150,2phc2sys0-21swapper/310:31:473
3240591150,2phc2sys0-21swapper/309:42:443
3240591150,2phc2sys0-21swapper/309:20:533
1080198991513,1cyclictest0-21swapper/212:25:012
1080198991513,1cyclictest0-21swapper/212:20:022
1080198991513,1cyclictest0-21swapper/209:12:472
1080198991513,1cyclictest0-21swapper/208:38:442
1080198991513,1cyclictest0-21swapper/208:25:022
1080198991512,1cyclictest0-21swapper/210:20:262
1080198991512,1cyclictest0-21swapper/208:45:052
1080198991512,1cyclictest0-21swapper/208:29:552
1080198991512,1cyclictest0-21swapper/207:10:012
108019899150,12cyclictest0-21swapper/210:34:472
108019799156,7cyclictest664-21dbus-daemon07:50:021
1080197991513,1cyclictest0-21swapper/107:50:091
1080197991512,2cyclictest1138801-21cstates08:00:051
1080197991512,2cyclictest1138801-21cstates08:00:051
1080197991512,2cyclictest1089568-21latency_hist07:20:021
1080197991512,2cyclictest0-21swapper/112:20:011
1080197991511,3cyclictest1163319-21uniq08:20:061
108019699151,4cyclictest1150426-21latency_hist08:10:010
1080196991512,2cyclictest1154503-21kthreadcore08:10:100
3240591140,2phc2sys0-21swapper/309:53:323
3240591140,2phc2sys0-21swapper/309:53:323
3240591140,2phc2sys0-21swapper/309:27:263
3240591140,1phc2sys0-21swapper/311:56:413
108019899141,7cyclictest0-21swapper/211:42:312
1080198991412,1cyclictest0-21swapper/211:45:082
1080198991412,1cyclictest0-21swapper/210:55:032
1080198991412,1cyclictest0-21swapper/210:55:032
1080198991412,1cyclictest0-21swapper/210:15:012
1080198991412,1cyclictest0-21swapper/209:30:112
1080198991411,1cyclictest0-21swapper/212:25:092
1080198991411,1cyclictest0-21swapper/212:06:142
1080198991411,1cyclictest0-21swapper/210:36:422
1080198991411,1cyclictest0-21swapper/209:55:112
1080198991411,1cyclictest0-21swapper/209:52:012
1080198991411,1cyclictest0-21swapper/209:52:012
1080198991411,1cyclictest0-21swapper/209:38:322
1080198991411,1cyclictest0-21swapper/207:35:112
1080198991410,2cyclictest0-21swapper/208:40:102
108019799141,4cyclictest1223352-21diskmemload09:55:081
108019799141,4cyclictest1090149-21perl07:20:071
1080197991411,2cyclictest1218563-21cut09:05:091
1080197991411,2cyclictest1103010-21kthreadcore07:30:091
108019699146,6cyclictest1080404-21date07:10:030
3240591130,3phc2sys0-21swapper/310:59:483
3240591130,2phc2sys0-21swapper/312:38:293
3240591130,2phc2sys0-21swapper/312:01:133
3240591130,2phc2sys0-21swapper/312:01:133
3240591130,2phc2sys0-21swapper/311:37:493
3240591130,2phc2sys0-21swapper/309:39:463
3240591130,1phc2sys0-21swapper/310:19:563
3240591130,1phc2sys0-21swapper/308:55:203
11590852130,2sleep20-21swapper/208:15:102
108019899136,2cyclictest0-21swapper/212:10:362
108019899131,6cyclictest0-21swapper/208:10:012
1080198991311,1cyclictest0-21swapper/210:30:012
1080198991311,1cyclictest0-21swapper/208:55:102
1080198991311,1cyclictest0-21swapper/208:15:022
1080198991310,2cyclictest0-21swapper/211:16:272
1080198991310,1cyclictest0-21swapper/211:35:062
1080198991310,1cyclictest0-21swapper/210:45:082
1080198991310,1cyclictest0-21swapper/210:05:022
1080198991310,1cyclictest0-21swapper/208:50:072
1080198991310,1cyclictest0-21swapper/207:40:092
1080198991310,1cyclictest0-21swapper/207:30:092
1080197991310,2cyclictest0-21swapper/108:00:011
3240591124,1phc2sys0-21swapper/307:13:213
3240591122,2phc2sys0-21swapper/310:10:073
3240591121,2phc2sys0-21swapper/310:29:473
3240591121,2phc2sys0-21swapper/308:48:103
3240591121,2phc2sys0-21swapper/307:40:103
3240591120,2phc2sys0-21swapper/311:51:483
3240591120,2phc2sys0-21swapper/310:20:333
3240591120,2phc2sys0-21swapper/308:00:423
3240591120,2phc2sys0-21swapper/308:00:423
3240591120,2phc2sys0-21swapper/307:30:443
3240591120,1phc2sys0-21swapper/310:39:243
108019899129,1cyclictest0-21swapper/208:35:022
108019899129,1cyclictest0-21swapper/207:53:172
108019899121,5cyclictest0-21swapper/207:24:472
1080198991210,1cyclictest0-21swapper/209:20:092
1080198991210,1cyclictest0-21swapper/209:00:082
1080198991210,1cyclictest0-21swapper/207:25:082
3240591115,2phc2sys0-21swapper/311:45:093
3240591111,2phc2sys0-21swapper/309:11:233
3240591110,3phc2sys0-21swapper/310:04:433
3240591110,2phc2sys0-21swapper/311:16:383
3240591110,2phc2sys0-21swapper/307:51:563
3240591110,1phc2sys0-21swapper/311:02:013
3240591110,1phc2sys0-21swapper/309:02:303
3240591110,1phc2sys0-21swapper/308:35:403
3240591110,1phc2sys0-21swapper/308:32:113
3240591110,1phc2sys0-21swapper/308:17:053
108019899119,1cyclictest0-21swapper/209:45:172
108019899119,1cyclictest0-21swapper/207:15:042
108019799118,2cyclictest0-21swapper/107:10:021
3240591101,2phc2sys0-21swapper/308:45:023
3240591101,2phc2sys0-21swapper/308:20:133
3240591101,2phc2sys0-21swapper/307:05:123
3240591100,2phc2sys0-21swapper/312:20:533
3240591100,2phc2sys0-21swapper/312:15:083
3240591100,2phc2sys0-21swapper/312:09:473
3240591100,2phc2sys0-21swapper/311:29:153
3240591100,2phc2sys0-21swapper/311:21:213
3240591100,2phc2sys0-21swapper/311:05:343
3240591100,2phc2sys0-21swapper/310:40:493
3240591100,2phc2sys0-21swapper/309:45:303
3240591100,2phc2sys0-21swapper/309:33:203
3240591100,2phc2sys0-21swapper/308:54:483
3240591100,2phc2sys0-21swapper/308:14:483
3240591100,2phc2sys0-21swapper/308:05:073
3240591100,1phc2sys0-21swapper/307:58:133
324059190,2phc2sys0-21swapper/312:10:583
324059190,2phc2sys0-21swapper/308:25:533
324059181,2phc2sys0-21swapper/307:15:383
324059180,1phc2sys0-21swapper/309:05:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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