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2026-05-18 - 18:26
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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 376 highest latencies:
System rack1slot3.osadl.org (updated Mon May 18, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288644299130,12cyclictest0-21swapper/311:30:123
288644299130,11cyclictest0-21swapper/312:20:153
288644299130,11cyclictest0-21swapper/310:30:133
2886442991210,1cyclictest0-21swapper/309:55:113
288644299120,11cyclictest0-21swapper/309:25:003
288644299120,11cyclictest0-21swapper/308:35:003
288644299120,11cyclictest0-21swapper/307:37:513
288644299120,11cyclictest0-21swapper/307:35:003
2886442991111,0cyclictest0-21swapper/311:05:123
2886442991110,0cyclictest0-21swapper/310:00:133
288644299110,1cyclictest0-21swapper/308:05:173
288644299110,10cyclictest0-21swapper/311:40:193
288644299110,10cyclictest0-21swapper/309:35:133
288644299110,0cyclictest0-21swapper/310:35:173
288644299110,0cyclictest0-21swapper/309:00:123
288644299109,0cyclictest0-21swapper/312:15:133
288644299109,0cyclictest0-21swapper/311:47:543
288644299109,0cyclictest0-21swapper/310:45:213
2886442991010,0cyclictest0-21swapper/311:35:133
2886442991010,0cyclictest0-21swapper/308:30:003
288644299100,10cyclictest0-21swapper/312:10:183
288644299100,0cyclictest0-21swapper/311:55:023
288644299100,0cyclictest0-21swapper/311:00:213
288644299100,0cyclictest0-21swapper/310:25:173
288644299100,0cyclictest0-21swapper/309:25:183
288644299100,0cyclictest0-21swapper/308:15:113
28864429999,0cyclictest0-21swapper/312:30:133
28864429999,0cyclictest0-21swapper/312:25:123
28864429999,0cyclictest0-21swapper/312:05:213
28864429999,0cyclictest0-21swapper/310:20:133
28864429999,0cyclictest0-21swapper/310:05:143
28864429999,0cyclictest0-21swapper/309:10:203
28864429999,0cyclictest0-21swapper/307:55:163
28864429999,0cyclictest0-21swapper/307:15:123
28864429998,0cyclictest0-21swapper/311:15:023
28864429998,0cyclictest0-21swapper/308:10:143
28864429990,9cyclictest0-21swapper/309:05:183
28864429990,0cyclictest0-21swapper/308:50:153
28864429988,0cyclictest0-21swapper/311:25:163
28864429988,0cyclictest0-21swapper/309:55:013
28864429988,0cyclictest0-21swapper/309:45:043
28864429988,0cyclictest0-21swapper/307:47:263
28864429987,1cyclictest0-21swapper/308:30:133
28864429980,8cyclictest0-21swapper/307:29:563
28864429977,0cyclictest0-21swapper/312:00:013
28864429977,0cyclictest0-21swapper/310:50:113
28864429977,0cyclictest0-21swapper/307:40:133
28864429976,0cyclictest0-21swapper/309:35:003
28864429970,6cyclictest0-21swapper/310:15:193
28864429970,0cyclictest0-21swapper/311:00:023
2885939271,4sleep30-21swapper/307:05:213
28864429966,0cyclictest0-21swapper/310:40:133
28864429966,0cyclictest0-21swapper/310:10:433
28864429966,0cyclictest0-21swapper/308:55:193
28864429966,0cyclictest0-21swapper/307:52:273
28864429966,0cyclictest0-21swapper/307:20:113
28864429966,0cyclictest0-21swapper/307:10:153
28864429955,0cyclictest0-21swapper/309:15:183
28864429954,0cyclictest0-21swapper/311:20:163
2906973240,3sleep22907116-21grep08:00:162
28864429944,0cyclictest0-21swapper/311:15:113
28864429944,0cyclictest0-21swapper/308:41:243
28864429943,0cyclictest0-21swapper/309:40:033
28864429942,1cyclictest0-21swapper/308:45:133
28864429941,1cyclictest0-21swapper/308:00:113
28864429940,2cyclictest0-21swapper/312:35:133
28864429940,2cyclictest0-21swapper/312:00:123
28864429940,2cyclictest0-21swapper/308:20:133
2886150242,1sleep10-21swapper/107:07:561
2884653240,2sleep22884682-21aten_r1power_cu07:05:122
3018829230,2sleep03018906-21interrupts12:30:150
2959172230,1sleep22959198-21apt-get10:10:122
2949881233,0sleep0766-21snmpd09:48:330
2919511230,1sleep02919525-21apt-get08:35:010
2907335230,2sleep12907634-21awk08:00:191
2884807231,1sleep00-21swapper/007:05:150
3017667220,1sleep10-21swapper/112:25:481
3015053220,1sleep00-21swapper/012:20:230
3009970220,0sleep20-21swapper/212:10:162
3007443220,1sleep03007495-21aten2.4-expect12:05:140
3005086220,1sleep01-21systemd12:00:020
3000482220,0sleep00-21swapper/011:46:040
2997013221,0sleep20-21swapper/211:40:112
2993069220,1sleep12993268-21needreboot11:30:161
2987814220,0sleep00-21swapper/011:17:150
2982290220,1sleep12982561-21df_inode11:05:141
2976655220,1sleep00-21swapper/010:50:170
2975864220,1sleep22975890-21apt-get10:50:102
2971767220,1sleep22971953-21cpuspeed10:40:142
2971332220,0sleep20-21swapper/210:39:112
2970222220,1sleep12970372-21ntp_states10:35:181
2968104220,1sleep12968279-21ntpq10:30:161
2967967220,0sleep00-21swapper/010:30:150
2955104220,1sleep02955324-21expr10:00:130
2953078220,1sleep12953166-21irqstats09:55:151
2952025220,0sleep00-21swapper/009:54:050
2944517220,1sleep20-21swapper/209:35:182
2938503220,1sleep12938656-21mailstats09:20:161
2930673220,1sleep02930845-21python309:00:190
2911219220,1sleep22910181-21/usr/sbin/munin08:10:212
2898148220,1sleep12898230-21cmp07:37:501
2895364220,1sleep02895518-21ntp_states07:30:170
2894116220,0sleep00-21swapper/007:25:210
2892324220,0sleep00-21swapper/007:21:400
2890476220,2sleep10-21swapper/107:17:451
3021826210,0sleep10-21swapper/112:35:451
3020729210,0sleep00-21swapper/012:35:160
3020479210,0sleep20-21swapper/212:35:132
3019720210,0sleep20-21swapper/212:30:342
3017675210,0sleep20-21swapper/212:25:532
3016296210,0sleep00-21swapper/012:25:020
3015772210,0sleep20-21swapper/212:24:492
3014005210,0sleep10-21swapper/112:20:161
3012095210,0sleep10-21swapper/112:15:151
3012023210,0sleep00-21swapper/012:15:140
3011626210,0sleep20-21swapper/212:15:122
3011032210,0sleep10-21swapper/112:12:111
3009618210,0sleep00-21swapper/012:10:150
3008894210,0sleep20-21swapper/212:06:402
3008838210,0sleep10-21swapper/112:06:111
3006327210,0sleep20-21swapper/212:00:192
3005434210,0sleep00-21swapper/012:00:130
3005142210,0sleep10-21swapper/112:00:021
3004877210,0sleep10-21swapper/111:58:111
3003447210,0sleep20-21swapper/211:55:162
3002755210,0sleep00-21swapper/011:52:480
3000925210,0sleep10-21swapper/111:50:021
3000633210,0sleep20-21swapper/211:47:262
2997148210,0sleep00-21swapper/011:40:130
2995620210,0sleep10-21swapper/111:35:201
2995514210,0sleep00-21swapper/011:35:190
2994691210,0sleep20-21swapper/211:35:142
2994046210,0sleep00-21swapper/011:31:560
2992626210,0sleep20-21swapper/211:30:132
2991959210,0sleep00-21swapper/011:26:560
2990541210,0sleep10-21swapper/111:25:131
2990476210,0sleep20-21swapper/211:25:102
2989857210,0sleep00-21swapper/011:21:420
2989013210,0sleep10-21swapper/111:20:151
2988524210,0sleep22988777-21cstates11:20:122
2986295210,0sleep10-21swapper/111:15:121
2985605210,1sleep00-21swapper/011:11:060
2985515210,0sleep20-21swapper/211:10:212
2984212210,0sleep10-21swapper/111:10:121
2982562210,0sleep20-21swapper/211:05:152
2982166210,0sleep00-21swapper/011:05:130
2981401210,0sleep10-21swapper/111:00:431
2980704210,0sleep00-21swapper/011:00:180
2978377210,0sleep20-21swapper/210:55:192
2977694210,0sleep00-21swapper/010:55:010
2975641210,0sleep10-21swapper/110:50:011
2975421210,0sleep20-21swapper/210:48:192
2975111210,0sleep00-21swapper/010:45:330
2973534210,0sleep10-21swapper/110:45:021
2973522210,0sleep00-21swapper/010:44:560
2971706210,0sleep10-21swapper/110:40:131
2970941210,0sleep00-21swapper/010:35:410
2969115210,0sleep20-21swapper/210:32:582
2967102211,0sleep0171ktimers/010:28:350
2967008210,0sleep10-21swapper/110:27:441
2965497210,0sleep20-21swapper/210:25:132
2965057210,0sleep00-21swapper/010:23:560
2964694210,0sleep10-21swapper/110:20:411
2963878210,0sleep20-21swapper/210:20:182
2962147210,0sleep00-21swapper/010:15:180
2961261210,0sleep20-21swapper/210:15:122
2961251210,0sleep10-21swapper/110:15:111
2959326210,0sleep00-21swapper/010:10:150
2958679210,0sleep10-21swapper/110:07:561
2957998210,0sleep20-21swapper/210:05:212
2957121210,0sleep00-21swapper/010:05:150
2952131210,0sleep00-21swapper/009:55:020
2950754210,0sleep20-21swapper/209:50:162
2949659210,0sleep10-21swapper/109:46:331
2948839210,0sleep20-21swapper/209:45:182
2947861210,0sleep10-21swapper/109:44:061
2947618210,0sleep20-21swapper/209:41:552
2946723210,0sleep00-21swapper/009:40:170
2945387210,0sleep00-21swapper/009:35:240
2943492210,0sleep10-21swapper/109:35:011
2942424210,0sleep00-21swapper/009:30:160
2942144210,0sleep20-21swapper/209:30:132
2940255210,0sleep00-21swapper/009:25:160
2939813210,0sleep10-21swapper/109:25:131
2939584210,0sleep20-21swapper/209:25:022
2938349210,1sleep00-21swapper/009:20:150
2937454210,0sleep20-21swapper/209:20:012
2937356210,0sleep10-21swapper/109:18:571
2937133210,1sleep00-21swapper/009:16:320
2935472210,0sleep20-21swapper/209:15:012
2935432211,0sleep0171ktimers/009:14:340
2934145210,0sleep10-21swapper/109:10:151
2933703210,0sleep20-21swapper/209:10:132
2932252210,0sleep20-21swapper/209:05:162
2932164210,0sleep10-21swapper/109:05:151
2931892210,0sleep00-21swapper/009:05:140
2931219210,0sleep10-21swapper/109:00:561
2929877210,0sleep20-21swapper/209:00:132
2929286210,0sleep10-21swapper/108:55:541
2928560210,0sleep00-21swapper/008:55:170
2928367210,0sleep20-21swapper/208:55:152
2927340210,1sleep00-21swapper/008:50:260
2926122210,0sleep12926297-21cpuspeed_turbos08:50:111
2925358210,0sleep20-21swapper/208:47:562
2923891210,0sleep00-21swapper/008:45:130
2923293210,0sleep20-21swapper/208:40:542
2923291210,0sleep00-21swapper/008:40:520
2920092210,0sleep20-21swapper/208:35:152
2920005210,0sleep10-21swapper/108:35:021
2917981210,0sleep20-21swapper/208:30:152
2917847210,0sleep02917873-21apt-get08:30:120
2917597210,0sleep02917609-21latency_hist08:30:000
2916167210,0sleep20-21swapper/208:25:132
2915688210,0sleep10-21swapper/108:25:001
2915663210,0sleep20-21swapper/208:24:462
2914623210,0sleep10-21swapper/108:20:171
2914469210,0sleep02914621-21latency08:20:160
2912089210,0sleep00-21swapper/008:15:110
2911842210,0sleep10-21swapper/108:15:001
2910334210,0sleep00-21swapper/008:10:160
2908701210,0sleep00-21swapper/008:05:140
2908297210,0sleep20-21swapper/208:05:132
2908268210,0sleep10-21swapper/108:05:121
2907699210,0sleep00-21swapper/008:00:540
2904425210,0sleep10-21swapper/107:55:121
2902669210,0sleep00-21swapper/007:50:130
2902515210,0sleep20-21swapper/207:50:122
2900355210,0sleep00-21swapper/007:45:020
2900073210,0sleep20-21swapper/207:41:282
2898813210,0sleep10-21swapper/107:40:151
2898719210,0sleep00-21swapper/007:40:140
2895676210,0sleep20-21swapper/207:30:182
2893204210,0sleep20-21swapper/207:25:152
2891138210,1sleep20-21swapper/207:20:142
2890656210,0sleep10-21swapper/107:20:011
2890332210,0sleep00-21swapper/007:15:560
2890329210,0sleep20-21swapper/207:15:542
2887547210,0sleep00-21swapper/007:10:190
2887295210,0sleep20-21swapper/207:10:182
2886616210,0sleep10-21swapper/107:10:121
3018380200,0sleep10-21swapper/112:30:051
3001158200,0sleep20-21swapper/211:50:032
2998844200,0sleep10-21swapper/111:45:011
2997003200,0sleep10-21swapper/111:40:061
2986282200,0sleep20-21swapper/211:15:052
2980038200,0sleep20-21swapper/211:00:042
2977926200,0sleep10-21swapper/110:55:021
2959151200,0sleep10-21swapper/110:10:031
2954992200,0sleep20-21swapper/210:00:032
2954990200,0sleep10-21swapper/110:00:021
2952629200,0sleep20-21swapper/209:55:042
2950281200,0sleep10-21swapper/109:50:021
2941461200,0sleep10-21swapper/109:30:011
2926024200,0sleep20-21swapper/208:50:032
2923849200,0sleep10-21swapper/108:45:031
2921938200,0sleep10-21swapper/108:40:011
2917645200,0sleep10-21swapper/108:30:011
2912076200,0sleep20-21swapper/208:15:012
2910169200,0sleep10-21swapper/108:10:051
2904416200,0sleep20-21swapper/207:55:052
2904410200,0sleep00-21swapper/007:55:030
2902504200,0sleep10-21swapper/107:50:021
2900590200,0sleep20-21swapper/207:45:032
2900589200,0sleep10-21swapper/107:45:021
2896649200,0sleep00-21swapper/007:35:040
2896646200,0sleep20-21swapper/207:35:022
2894498200,0sleep10-21swapper/107:30:021
2892588200,0sleep10-21swapper/107:25:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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