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2026-08-08 - 21:25
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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 rackdslot2.osadl.org (updated Sat Aug 08, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591236170,22phc2sys0-21swapper/307:08:353
140442208174,22sleep10-21swapper/107:05:381
143262206171,23sleep20-21swapper/207:09:202
142322205171,22sleep00-21swapper/007:08:050
724821730,6sleep01467799cyclictest09:10:000
724821730,6sleep01467799cyclictest09:10:000
1467799695,11cyclictest19270-21latency_hist07:19:590
14679996728,5cyclictest33-21ksoftirqd/209:40:162
1467799665,12cyclictest1148-21latency_hist12:20:000
1467999641,61cyclictest2370-21kworker/2:210:10:262
14679996328,8cyclictest33-21ksoftirqd/208:40:012
232552620,2sleep00-21swapper/008:35:150
14679996227,8cyclictest33-21ksoftirqd/211:05:002
65822600,2sleep30-21swapper/310:15:183
14679996025,6cyclictest33-21ksoftirqd/209:50:142
14679996017,5cyclictest33-21ksoftirqd/207:25:262
14679996015,6cyclictest33-21ksoftirqd/211:50:272
14679995925,8cyclictest33-21ksoftirqd/208:25:142
14679995915,6cyclictest33-21ksoftirqd/210:20:242
14679995915,6cyclictest33-21ksoftirqd/207:35:152
14679995914,6cyclictest33-21ksoftirqd/208:15:172
1467899591,15cyclictest22670-21cut11:55:201
1467899591,15cyclictest15581-21latency_hist10:35:011
1467799593,12cyclictest20412-21latency_hist10:45:000
1467799593,11cyclictest4953-21cat09:05:000
1467999585,4cyclictest33-21ksoftirqd/211:50:012
14679995827,8cyclictest33-21ksoftirqd/211:35:002
14679995827,4cyclictest33-21ksoftirqd/210:30:192
14679995825,8cyclictest33-21ksoftirqd/211:20:152
1467899581,15cyclictest9984-21/usr/sbin/munin11:30:271
1467799586,12cyclictest17628-21grep11:45:170
1467799584,12cyclictest22893-21cron10:50:000
1467799582,12cyclictest18125-21cut10:40:000
14679995725,5cyclictest33-21ksoftirqd/212:15:222
14679995721,8cyclictest33-21ksoftirqd/209:30:182
14679995719,5cyclictest33-21ksoftirqd/209:15:192
1467799573,11cyclictest27171-21/usr/sbin/munin12:05:180
1467799572,20cyclictest18452-21ls08:25:140
195972560,3sleep2311rcuc/209:35:132
195972560,3sleep2311rcuc/209:35:132
14680995626,4cyclictest41-21ksoftirqd/308:35:133
14679995630,3cyclictest33-21ksoftirqd/211:40:232
14679995630,3cyclictest33-21ksoftirqd/211:40:232
14679995629,8cyclictest33-21ksoftirqd/209:25:002
14679995625,4cyclictest33-21ksoftirqd/207:55:142
14679995623,4cyclictest33-21ksoftirqd/212:10:142
1467899561,11cyclictest20426-21sed11:50:201
1467799566,8cyclictest0-21swapper/011:30:150
1467799565,11cyclictest22662-21cut07:25:190
1467799564,11cyclictest23259-21wc10:50:140
1467799562,11cyclictest17249-21cat09:30:150
1467799561,12cyclictest17225-21mailstats08:20:240
14679995522,9cyclictest33-21ksoftirqd/210:50:272
14679995521,6cyclictest33-21ksoftirqd/208:55:172
14679995520,6cyclictest33-21ksoftirqd/207:35:012
14679995518,5cyclictest33-21ksoftirqd/207:10:182
1467899555,5cyclictest0-21swapper/109:45:011
1467899550,16cyclictest7542-21sed11:25:021
1467899550,11cyclictest3975-21cut12:25:151
52682540,3sleep00-21swapper/011:20:140
1467999547,6cyclictest33-21ksoftirqd/210:55:292
14679995427,9cyclictest33-21ksoftirqd/210:30:002
14679995426,5cyclictest33-21ksoftirqd/209:25:122
14679995422,6cyclictest33-21ksoftirqd/208:10:152
14679995419,4cyclictest33-21ksoftirqd/208:50:132
14679995417,5cyclictest33-21ksoftirqd/208:00:172
14679995414,4cyclictest33-21ksoftirqd/212:30:142
1467899542,17cyclictest31659-21expr10:00:121
1467899542,17cyclictest13859-21cat11:35:261
1467799545,11cyclictest2041-21iostat12:20:200
14680995323,7cyclictest41-21ksoftirqd/308:40:183
14680995312,10cyclictest41-21ksoftirqd/309:20:273
1467999535,8cyclictest33-21ksoftirqd/209:10:272
1467999535,6cyclictest33-21ksoftirqd/211:15:202
1467999532,6cyclictest33-21ksoftirqd/211:35:242
14679995316,5cyclictest33-21ksoftirqd/209:03:382
14679995312,9cyclictest33-21ksoftirqd/207:40:182
1467899530,17cyclictest31733-21unixbench_multi08:50:271
1467799535,11cyclictest14463-21latency_hist09:25:000
1467799532,12cyclictest6948-21cut10:15:220
14680995227,6cyclictest41-21ksoftirqd/307:45:003
14680995222,6cyclictest41-21ksoftirqd/310:35:193
14680995222,3cyclictest41-21ksoftirqd/309:10:193
1467999525,4cyclictest33-21ksoftirqd/210:40:252
1467999524,7cyclictest33-21ksoftirqd/210:15:202
14679995231,4cyclictest33-21ksoftirqd/212:20:212
14679995223,5cyclictest33-21ksoftirqd/208:20:232
14679995218,5cyclictest33-21ksoftirqd/208:45:132
14679995215,4cyclictest33-21ksoftirqd/211:05:282
14679995213,6cyclictest33-21ksoftirqd/210:00:172
1467899521,16cyclictest3268-21fschecks_count11:15:181
1467799525,12cyclictest26741-21cat08:40:240
1467799524,17cyclictest15377-21seq08:17:120
1467799524,11cyclictest15450-21sed09:25:170
1467799523,11cyclictest29858-21sed12:10:200
14680995119,4cyclictest41-21ksoftirqd/308:15:213
14680995115,8cyclictest41-21ksoftirqd/311:05:013
14680995114,14cyclictest41-21ksoftirqd/308:00:013
1467999515,3cyclictest33-21ksoftirqd/211:55:152
1467999515,2cyclictest121rcu_preempt12:05:002
14679995124,4cyclictest33-21ksoftirqd/207:15:192
14679995115,5cyclictest33-21ksoftirqd/207:50:142
1467899513,6cyclictest19297-21missed_timers08:25:221
1467899510,11cyclictest14696-21/usr/sbin/munin07:10:131
1467799512,11cyclictest26486-21sed07:35:010
1467799512,10cyclictest11484-21tune2fs10:25:170
14680995027,3cyclictest41-21ksoftirqd/312:10:183
14680995024,4cyclictest41-21ksoftirqd/311:35:273
14680995023,3cyclictest41-21ksoftirqd/312:00:163
14680995023,3cyclictest41-21ksoftirqd/307:45:223
14680995015,5cyclictest41-21ksoftirqd/310:30:233
1467999504,8cyclictest33-21ksoftirqd/211:10:272
14679995021,5cyclictest33-21ksoftirqd/211:25:172
14679995019,5cyclictest33-21ksoftirqd/210:45:182
1467999500,2cyclictest121rcu_preempt08:10:002
1467899506,6cyclictest18477-21cstates10:40:151
1467899502,11cyclictest21052-21/usr/sbin/munin08:30:161
1467899501,15cyclictest4061-21sed09:00:281
1467899500,11cyclictest8900-21cstates10:20:151
1467799505,18cyclictest27207-21irqrtprio09:50:180
1467799504,11cyclictest29794-21cut09:55:180
1467799504,10cyclictest3417-21taskset10:07:120
1467799504,10cyclictest3417-21taskset10:07:120
1467799502,12cyclictest1319-21sed10:05:000
1467799502,11cyclictest8531-21sed08:05:000
14680994921,3cyclictest41-21ksoftirqd/308:45:253
14680994918,4cyclictest41-21ksoftirqd/311:25:143
1467999495,5cyclictest33-21ksoftirqd/207:45:262
1467999494,7cyclictest33-21ksoftirqd/207:20:202
1467999493,5cyclictest33-21ksoftirqd/212:30:012
1467899493,15cyclictest5364-21cat09:05:151
1467899493,15cyclictest5364-21cat09:05:151
1467899491,16cyclictest10095-21sensors08:05:261
1467799494,11cyclictest5996-21date12:30:010
1467799493,11cyclictest29161-21wc07:40:160
1467799492,10cyclictest25152-21sed12:00:200
14680994822,4cyclictest41-21ksoftirqd/310:20:233
14680994818,7cyclictest41-21ksoftirqd/312:25:173
14680994818,4cyclictest41-21ksoftirqd/307:30:243
14680994815,7cyclictest41-21ksoftirqd/307:20:153
14680994814,7cyclictest41-21ksoftirqd/310:25:163
1467999483,7cyclictest33-21ksoftirqd/212:35:272
1467999482,5cyclictest33-21ksoftirqd/209:05:232
1467999482,5cyclictest33-21ksoftirqd/209:05:232
14679994814,4cyclictest33-21ksoftirqd/208:45:012
1467899482,13cyclictest5383-21ls10:10:251
1467799482,12cyclictest30365-21cstates08:50:130
1468099473,4cyclictest2070-21Xorg10:50:253
1468099472,3cyclictest121rcu_preempt12:30:173
14680994722,7cyclictest41-21ksoftirqd/311:55:173
14680994722,3cyclictest41-21ksoftirqd/308:55:233
14680994721,3cyclictest41-21ksoftirqd/309:03:403
14680994716,4cyclictest41-21ksoftirqd/311:20:203
14680994715,4cyclictest41-21ksoftirqd/309:40:283
14680994714,5cyclictest41-21ksoftirqd/309:55:133
14680994711,8cyclictest41-21ksoftirqd/308:05:013
1467999474,8cyclictest33-21ksoftirqd/209:45:262
1467999473,5cyclictest33-21ksoftirqd/212:05:202
14679994729,10cyclictest33-21ksoftirqd/210:05:162
14679994729,10cyclictest33-21ksoftirqd/210:05:162
1467999472,8cyclictest33-21ksoftirqd/210:35:242
1467999471,2cyclictest121rcu_preempt09:59:592
1467799472,11cyclictest12135-21sed09:20:010
1468099462,2cyclictest121rcu_preempt08:55:003
14680994619,4cyclictest41-21ksoftirqd/307:15:223
1468099460,5cyclictest307-21avahi-daemon10:10:243
1467999464,2cyclictest121rcu_preempt08:30:192
1468099459,8cyclictest41-21ksoftirqd/311:05:153
1468099457,8cyclictest41-21ksoftirqd/310:10:003
1468099457,8cyclictest41-21ksoftirqd/310:10:003
1468099451,3cyclictest121rcu_preempt10:55:283
14680994510,7cyclictest41-21ksoftirqd/309:25:233
1467799454,11cyclictest6028-21latency_hist07:59:590
1467799453,12cyclictest23146-21proc_pri11:55:250
1468099447,8cyclictest41-21ksoftirqd/311:45:003
1468099447,8cyclictest41-21ksoftirqd/311:45:003
1468099442,3cyclictest121rcu_preempt11:15:263
14680994418,4cyclictest41-21ksoftirqd/309:55:013
14680994417,4cyclictest41-21ksoftirqd/310:00:003
14680994416,4cyclictest41-21ksoftirqd/311:30:153
14680994414,4cyclictest41-21ksoftirqd/309:36:593
14680994414,4cyclictest41-21ksoftirqd/309:36:583
14680994413,7cyclictest41-21ksoftirqd/310:45:023
14680994412,5cyclictest41-21ksoftirqd/309:30:173
14680994411,7cyclictest41-21ksoftirqd/308:15:013
1467899441,11cyclictest9015-21cstates12:35:151
1467799445,5cyclictest0-21swapper/009:45:000
1467799443,11cyclictest7739-21cstates09:10:140
1467799442,11cyclictest626-21sed07:45:270
1468099436,6cyclictest41-21ksoftirqd/309:15:133
14680994333,3cyclictest41-21ksoftirqd/307:29:593
14680994330,4cyclictest41-21ksoftirqd/311:45:193
14680994313,7cyclictest41-21ksoftirqd/312:15:163
14680994310,9cyclictest41-21ksoftirqd/311:50:203
1467899433,14cyclictest12634-21diskstats09:20:151
1467899432,11cyclictest27498-21sed09:50:201
1467799432,11cyclictest6612-21expr12:30:140
1467799432,11cyclictest22785-21cat08:35:000
1468099428,8cyclictest41-21ksoftirqd/312:40:003
1468099427,5cyclictest41-21ksoftirqd/312:20:193
14680994237,3cyclictest41-21ksoftirqd/310:45:003
14680994232,8cyclictest41-21ksoftirqd/309:50:013
14680994224,9cyclictest41-21ksoftirqd/308:30:183
14680994212,9cyclictest41-21ksoftirqd/307:10:203
1467899426,6cyclictest14798-21/usr/sbin/munin11:40:171
1467899426,6cyclictest14798-21/usr/sbin/munin11:40:171
1467899423,12cyclictest8653-21meminfo11:25:201
1467899421,11cyclictest29605-21iostat07:40:191
1467899421,11cyclictest12650-21sed10:25:281
14677994237,3cyclictest21657-21cron11:55:010
1467799423,12cyclictest15121-21awk10:30:270
1467799423,11cyclictest356-21appstreamcli11:10:010
139291420,0ptp4l401ktimersoftd/309:07:243
139291420,0ptp4l401ktimersoftd/309:07:243
14680994129,9cyclictest41-21ksoftirqd/312:05:203
14680994122,10cyclictest41-21ksoftirqd/307:50:253
1467899412,13cyclictest30914-21iostat_ios11:05:201
1467899411,12cyclictest27960-21expr08:45:141
1467899411,12cyclictest24671-21hddtemp_smartct09:45:171
1467799415,12cyclictest15628-21cut07:10:190
1467799415,12cyclictest1-21systemd09:35:200
1467799415,12cyclictest1-21systemd09:35:190
1467799412,10cyclictest32547-21cpuspeed_turbos08:55:140
1467799411,11cyclictest10888-21latency_hist12:40:000
1468099405,7cyclictest41-21ksoftirqd/308:05:153
14680994035,3cyclictest41-21ksoftirqd/307:35:273
14680994011,4cyclictest41-21ksoftirqd/311:10:593
1467899402,12cyclictest4419-21irqrtprio07:55:201
1467899401,11cyclictest27249-21users10:55:311
1467799404,12cyclictest28645-21sed11:00:190
1467799403,11cyclictest8695-21sort11:25:210
1467799403,11cyclictest15589-21sed11:40:180
1467799403,11cyclictest15589-21sed11:40:180
14680993933,3cyclictest41-21ksoftirqd/308:20:163
14680993928,3cyclictest41-21ksoftirqd/308:25:163
1467899390,11cyclictest26853-21cstates07:35:141
1467799392,11cyclictest3663-21sed07:55:010
1467799392,11cyclictest13821-21mailstats11:35:250
1467899384,5cyclictest0-21swapper/108:40:231
14677993831,4cyclictest9-21ksoftirqd/007:22:120
1467799382,10cyclictest8762-21cpuspeed_turbos10:20:130
1467799382,10cyclictest10800-21latency_hist08:10:000
14678993732,3cyclictest25-21ksoftirqd/111:50:001
1467799371,11cyclictest11036-21/usr/sbin/munin08:10:200
1467899364,5cyclictest0-21swapper/110:15:301
1467899361,11cyclictest16685-21sshd09:28:371
1467899360,9cyclictest0-21swapper/109:10:201
14677993630,4cyclictest9-21ksoftirqd/010:57:070
14677993629,4cyclictest9-21ksoftirqd/009:45:460
14678993530,3cyclictest25-21ksoftirqd/112:30:441
1467899350,10cyclictest20893-21cpuspeed_turbos10:45:161
14677993529,4cyclictest9-21ksoftirqd/010:11:550
14677993528,5cyclictest9-21ksoftirqd/011:18:530
14678993429,3cyclictest25-21ksoftirqd/107:54:151
14678993427,4cyclictest25-21ksoftirqd/107:45:481
1467899342,5cyclictest25-21ksoftirqd/108:55:361
14677993428,4cyclictest9-21ksoftirqd/011:06:020
14678993328,3cyclictest25-21ksoftirqd/111:03:391
14678993328,3cyclictest25-21ksoftirqd/109:55:501
14678993328,3cyclictest25-21ksoftirqd/108:18:391
14678993328,3cyclictest25-21ksoftirqd/108:10:131
14678993327,4cyclictest25-21ksoftirqd/109:37:571
14678993327,4cyclictest25-21ksoftirqd/109:37:571
14678993327,4cyclictest25-21ksoftirqd/108:37:391
14678993326,4cyclictest25-21ksoftirqd/107:34:371
1467899331,8cyclictest23526-21diskstats10:50:161
14678993227,3cyclictest25-21ksoftirqd/112:17:351
14678993226,4cyclictest25-21ksoftirqd/110:40:001
14678993226,4cyclictest25-21ksoftirqd/108:02:421
14678993226,3cyclictest25-21ksoftirqd/109:30:311
14678993225,4cyclictest25-21ksoftirqd/107:25:421
14678993125,4cyclictest25-21ksoftirqd/112:12:351
1467799312,11cyclictest28383-21irqrtprio08:45:190
14678993025,3cyclictest25-21ksoftirqd/112:08:151
14678993025,3cyclictest25-21ksoftirqd/107:23:111
14678993024,4cyclictest25-21ksoftirqd/112:00:591
14678993024,3cyclictest25-21ksoftirqd/108:21:461
1467799293,8cyclictest27985-21python07:35:260
1467899284,5cyclictest0-21swapper/110:05:151
1467899284,5cyclictest0-21swapper/110:05:151
14678992823,3cyclictest25-21ksoftirqd/111:12:561
14678992823,3cyclictest25-21ksoftirqd/109:18:591
14678992722,3cyclictest25-21ksoftirqd/107:15:201
14678992621,3cyclictest25-21ksoftirqd/112:21:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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