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2026-07-03 - 05:56
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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 rackdslot1.osadl.org (updated Fri Jul 03, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
682521490,7sleep12028499cyclictest19:50:171
2028499740,3cyclictest3005-21/usr/sbin/munin19:40:221
2028499722,31cyclictest0-21swapper/123:00:271
20283996834,6cyclictest9-21ksoftirqd/000:05:290
20283996733,4cyclictest9-21ksoftirqd/000:20:000
20283996733,3cyclictest9-21ksoftirqd/000:35:010
20283996732,6cyclictest9-21ksoftirqd/023:20:290
134491670,5ptp4l9140-21taskset22:15:090
20283996431,6cyclictest9-21ksoftirqd/022:15:000
20283996329,5cyclictest9-21ksoftirqd/021:50:000
134491630,3ptp4l14991-21ls20:05:272
20283996232,4cyclictest9-21ksoftirqd/022:05:170
20283996230,6cyclictest9-21ksoftirqd/020:15:270
20283996230,5cyclictest9-21ksoftirqd/021:30:010
20283996226,6cyclictest9-21ksoftirqd/019:30:220
20283996130,4cyclictest9-21ksoftirqd/000:05:010
20283996128,5cyclictest9-21ksoftirqd/022:00:290
20283996127,5cyclictest9-21ksoftirqd/021:23:510
20283996126,5cyclictest9-21ksoftirqd/020:20:280
134491610,5ptp4l0-21swapper/121:45:181
20283996032,8cyclictest9-21ksoftirqd/019:25:230
20283996030,5cyclictest9-21ksoftirqd/022:25:220
20283996030,5cyclictest9-21ksoftirqd/021:10:200
20283996029,6cyclictest9-21ksoftirqd/023:05:010
20283996027,5cyclictest9-21ksoftirqd/023:35:200
20283996025,5cyclictest9-21ksoftirqd/000:35:200
20283996022,6cyclictest9-21ksoftirqd/022:35:270
20283995929,5cyclictest9-21ksoftirqd/021:40:130
20283995929,4cyclictest9-21ksoftirqd/023:00:270
20283995928,5cyclictest9-21ksoftirqd/020:35:150
20283995928,5cyclictest9-21ksoftirqd/019:40:270
20283995927,5cyclictest9-21ksoftirqd/022:50:260
20283995927,3cyclictest9-21ksoftirqd/020:00:280
20283995924,4cyclictest9-21ksoftirqd/020:45:180
134491590,5ptp4l24673-21ntp_states23:55:240
20283995827,5cyclictest9-21ksoftirqd/019:50:190
20283995826,5cyclictest9-21ksoftirqd/000:25:320
20283995823,5cyclictest9-21ksoftirqd/021:35:000
134491580,3ptp4l0-21swapper/119:09:141
20283995730,4cyclictest9-21ksoftirqd/020:05:270
20283995729,3cyclictest9-21ksoftirqd/022:59:260
20283995728,4cyclictest9-21ksoftirqd/021:55:270
20283995725,5cyclictest9-21ksoftirqd/022:45:170
20283995725,4cyclictest9-21ksoftirqd/021:05:000
20283995724,5cyclictest9-21ksoftirqd/019:20:190
20283995724,5cyclictest9-21ksoftirqd/019:20:190
20283995723,6cyclictest9-21ksoftirqd/023:45:280
134491570,4ptp4l0-21swapper/222:49:012
134491570,10ptp4l17811-21apt-get19:05:120
34862560,5sleep30-21swapper/322:00:273
20283995628,3cyclictest9-21ksoftirqd/020:50:270
20283995627,6cyclictest9-21ksoftirqd/000:20:160
20283995626,4cyclictest9-21ksoftirqd/020:43:430
20283995626,4cyclictest9-21ksoftirqd/020:43:430
20283995626,3cyclictest9-21ksoftirqd/019:20:000
20283995625,5cyclictest9-21ksoftirqd/023:35:000
20283995624,6cyclictest9-21ksoftirqd/019:10:250
20283995624,6cyclictest9-21ksoftirqd/000:10:170
20283995624,4cyclictest9-21ksoftirqd/020:12:220
20283995624,4cyclictest9-21ksoftirqd/020:12:220
20283995620,4cyclictest9-21ksoftirqd/023:45:000
134491560,3ptp4l0-21swapper/223:10:242
134491560,3ptp4l0-21swapper/221:04:362
134491560,3ptp4l0-21swapper/120:50:241
20283995525,5cyclictest9-21ksoftirqd/021:50:190
20283995523,3cyclictest9-21ksoftirqd/023:50:200
20283995522,6cyclictest9-21ksoftirqd/023:15:140
134491550,4ptp4l0-21swapper/121:29:561
20283995426,4cyclictest9-21ksoftirqd/019:45:290
20283995426,3cyclictest9-21ksoftirqd/019:39:490
20283995422,5cyclictest9-21ksoftirqd/023:10:120
20283995422,5cyclictest9-21ksoftirqd/021:05:220
20283995422,5cyclictest9-21ksoftirqd/020:55:130
20283995420,5cyclictest9-21ksoftirqd/021:30:270
134491540,11ptp4l0-21swapper/222:25:142
134491530,4ptp4l0-21swapper/223:01:592
2028699523,12cyclictest0-21swapper/320:20:143
2028699522,6cyclictest41-21ksoftirqd/300:25:303
20283995228,6cyclictest9-21ksoftirqd/020:25:200
20283995225,3cyclictest9-21ksoftirqd/019:55:130
20283995220,5cyclictest9-21ksoftirqd/022:25:010
134491520,4ptp4l0-21swapper/200:23:292
134491520,3ptp4l0-21swapper/223:45:422
2028699515,10cyclictest0-21swapper/321:00:263
2028699513,6cyclictest0-21swapper/323:55:233
2028699512,12cyclictest0-21swapper/319:47:353
2028499511,3cyclictest24524-21users20:25:261
134491510,3ptp4l0-21swapper/221:57:562
2028699504,8cyclictest0-21swapper/300:30:133
2028699502,7cyclictest0-21swapper/323:20:253
2028399504,3cyclictest9-21ksoftirqd/022:44:590
134491500,3ptp4l0-21swapper/323:29:473
2028699493,6cyclictest0-21swapper/320:15:143
2028699492,6cyclictest0-21swapper/300:10:173
2028699492,10cyclictest0-21swapper/300:20:133
2028499490,2cyclictest12063-21ls20:00:211
134491490,9ptp4l16074-21apt-get22:30:132
2028699486,12cyclictest0-21swapper/300:35:273
2028699485,12cyclictest0-21swapper/319:10:243
2028699483,6cyclictest0-21swapper/323:03:413
2028699482,6cyclictest0-21swapper/300:03:413
2028699482,12cyclictest0-21swapper/320:35:023
2028399481,3cyclictest121rcu_preempt22:30:210
134491480,7ptp4l0-21swapper/222:01:002
134491480,4ptp4l0-21swapper/200:02:452
134491480,14ptp4l33-21ksoftirqd/219:22:392
134491480,14ptp4l33-21ksoftirqd/219:22:382
2028699476,6cyclictest0-21swapper/322:35:273
2028699473,14cyclictest0-21swapper/322:50:283
2028699472,6cyclictest0-21swapper/319:20:113
2028699472,6cyclictest0-21swapper/319:20:113
2028699472,5cyclictest0-21swapper/320:30:243
134491470,3ptp4l0-21swapper/221:45:172
2028699467,6cyclictest0-21swapper/322:25:133
2028699466,6cyclictest0-21swapper/323:10:133
2028699462,4cyclictest0-21swapper/321:05:153
2028699460,11cyclictest41-21ksoftirqd/320:41:413
2028699460,11cyclictest41-21ksoftirqd/320:41:413
2028499460,3cyclictest19103-21grep23:45:161
2028399463,3cyclictest121rcu_preempt21:15:170
134491460,3ptp4l25-21ksoftirqd/120:55:101
134491460,3ptp4l0-21swapper/100:05:081
2028699456,6cyclictest0-21swapper/322:07:283
2028699455,6cyclictest0-21swapper/322:34:443
2028699453,6cyclictest0-21swapper/322:49:253
2028699453,12cyclictest0-21swapper/320:00:263
2028699452,6cyclictest0-21swapper/322:15:263
2028699452,6cyclictest0-21swapper/322:14:173
2028699452,5cyclictest41-21ksoftirqd/300:05:273
2028399451,3cyclictest9-21ksoftirqd/020:30:190
134491450,5ptp4l13421-21apt-get20:05:121
134491450,4ptp4l0-21swapper/221:05:182
134491450,4ptp4l0-21swapper/122:42:091
134491450,3ptp4l0-21swapper/223:40:152
134491450,3ptp4l0-21swapper/122:27:321
2028699447,6cyclictest0-21swapper/321:40:153
2028699446,6cyclictest0-21swapper/321:55:173
2028699446,6cyclictest0-21swapper/321:46:553
2028699446,6cyclictest0-21swapper/319:27:023
2028699442,6cyclictest0-21swapper/321:25:233
2028699442,35cyclictest0-21swapper/320:50:183
2028699441,6cyclictest0-21swapper/323:07:303
2028699440,9cyclictest1301-21snmpd21:35:113
2028699440,5cyclictest12032-21/usr/sbin/munin23:30:253
2028399442,3cyclictest10917-21sed23:25:280
134491440,4ptp4l9158-21apt-get22:15:122
134491440,4ptp4l0-21swapper/223:22:312
134491440,4ptp4l0-21swapper/122:09:461
134491440,4ptp4l0-21swapper/122:02:241
134491440,3ptp4l0-21swapper/323:50:163
134491440,3ptp4l0-21swapper/321:50:163
134491440,3ptp4l0-21swapper/223:25:182
134491440,3ptp4l0-21swapper/123:59:541
134491440,3ptp4l0-21swapper/121:12:451
134491440,10ptp4l0-21swapper/222:41:262
2028699436,11cyclictest0-21swapper/323:15:243
2028699433,11cyclictest0-21swapper/322:55:133
2028699433,11cyclictest0-21swapper/320:45:273
2028699432,6cyclictest0-21swapper/300:15:123
20285994339,2cyclictest33-21ksoftirqd/220:00:002
134491430,5ptp4l0-21swapper/321:15:203
134491430,4ptp4l10132-21ntp_states21:05:231
2028699424,6cyclictest0-21swapper/320:25:253
2028699424,2cyclictest134491ptp4l23:47:313
2028699423,6cyclictest0-21swapper/321:20:223
2028699423,5cyclictest41-21ksoftirqd/323:40:163
2028699422,6cyclictest41-21ksoftirqd/320:05:143
2028699422,6cyclictest0-21swapper/321:30:253
2028699422,6cyclictest0-21swapper/321:10:233
2028699422,6cyclictest0-21swapper/319:40:173
134491420,9ptp4l1317-21runrttasks21:43:401
134491420,9ptp4l0-21swapper/223:36:372
134491420,8ptp4l0-21swapper/220:28:532
134491420,5ptp4l17050-21ntp_states20:10:221
134491420,5ptp4l17050-21ntp_states20:10:221
134491420,5ptp4l0-21swapper/120:45:221
134491420,5ptp4l0-21swapper/100:00:231
134491420,4ptp4l2318-21gnome-shell23:08:591
134491420,4ptp4l1864-21apt-get19:40:112
134491420,4ptp4l0-21swapper/220:00:592
2028699413,6cyclictest0-21swapper/322:40:243
2028699412,4cyclictest41-21ksoftirqd/320:55:153
2028499416,22cyclictest14745-21open_files21:15:251
134491410,5ptp4l0-21swapper/122:50:191
134491410,4ptp4l15463-21ntp_states23:35:233
134491410,4ptp4l0-21swapper/220:59:382
134491410,4ptp4l0-21swapper/123:10:581
134491410,3ptp4l17351-21ls21:20:272
2028699402,30cyclictest0-21swapper/319:35:133
20284994031,6cyclictest25-21ksoftirqd/121:04:051
2028499401,2cyclictest27449-21apt-get20:35:121
2028499400,2cyclictest8805-21apt-get19:55:131
2028499400,2cyclictest21261-21apt-get23:50:111
134491400,9ptp4l0-21swapper/223:56:542
134491400,5ptp4l29732-21apt-get21:50:132
134491400,5ptp4l0-21swapper/223:50:202
134491400,4ptp4l30604-21irqstats20:40:171
134491400,4ptp4l30604-21irqstats20:40:171
134491400,4ptp4l30542-21memory19:30:203
134491400,4ptp4l23253-21iostat_ios19:15:182
134491400,4ptp4l0-21swapper/322:21:073
134491400,4ptp4l0-21swapper/222:10:102
134491400,4ptp4l0-21swapper/220:16:472
134491400,4ptp4l0-21swapper/219:25:572
134491400,4ptp4l0-21swapper/200:15:052
134491400,4ptp4l0-21swapper/200:11:322
134491400,4ptp4l0-21swapper/200:07:102
134491400,4ptp4l0-21swapper/123:15:241
134491400,4ptp4l0-21swapper/122:55:201
134491400,4ptp4l0-21swapper/121:50:261
134491400,4ptp4l0-21swapper/121:21:581
134491400,4ptp4l0-21swapper/119:15:141
134491400,3ptp4l7624-21ntp_states19:50:243
134491400,3ptp4l6510-21apt-get19:50:122
134491400,3ptp4l23767-21iostat22:45:191
134491400,3ptp4l20836-21df_inode21:30:162
134491400,3ptp4l20388-21apt-get19:10:132
2028499393,29cyclictest736-21apt-get00:15:131
134491390,6ptp4l25129-21taskset20:30:042
134491390,5ptp4l0-21swapper/221:40:162
134491390,5ptp4l0-21swapper/221:10:212
134491390,5ptp4l0-21swapper/123:35:161
134491390,5ptp4l0-21swapper/120:30:121
134491390,4ptp4l2411-21/usr/sbin/munin20:50:142
134491390,4ptp4l22831-21apt-get21:35:142
134491390,4ptp4l0-21swapper/223:15:412
134491390,4ptp4l0-21swapper/223:05:022
134491390,4ptp4l0-21swapper/222:55:322
134491390,4ptp4l0-21swapper/222:52:552
134491390,4ptp4l0-21swapper/222:35:122
134491390,4ptp4l0-21swapper/222:09:482
134491390,4ptp4l0-21swapper/221:29:112
134491390,4ptp4l0-21swapper/220:45:202
134491390,4ptp4l0-21swapper/220:40:142
134491390,4ptp4l0-21swapper/220:40:142
134491390,4ptp4l0-21swapper/220:37:142
134491390,4ptp4l0-21swapper/219:49:472
134491390,4ptp4l0-21swapper/200:38:552
134491390,4ptp4l0-21swapper/200:30:122
134491390,4ptp4l0-21swapper/122:18:191
134491390,4ptp4l0-21swapper/121:55:261
134491390,4ptp4l0-21swapper/121:35:191
134491390,4ptp4l0-21swapper/121:30:301
134491390,4ptp4l0-21swapper/100:35:151
134491390,3ptp4l4103-21meminfo00:20:201
134491390,3ptp4l21672-21ntp_states20:20:232
134491390,3ptp4l19246-21ls20:15:201
134491390,3ptp4l16240-21diskstats20:10:143
134491390,3ptp4l16240-21diskstats20:10:143
134491390,3ptp4l14455-21irqstats21:15:202
134491390,3ptp4l0-21swapper/220:12:202
134491390,3ptp4l0-21swapper/220:12:202
2028499382,30cyclictest16660-21apt-get23:40:121
20284993817,18cyclictest25-21ksoftirqd/100:25:151
134491380,4ptp4l0-21swapper/319:58:233
134491380,4ptp4l0-21swapper/319:19:543
134491380,4ptp4l0-21swapper/223:30:232
134491380,4ptp4l0-21swapper/222:20:452
134491380,4ptp4l0-21swapper/219:32:372
134491380,4ptp4l0-21swapper/123:24:171
134491380,4ptp4l0-21swapper/122:35:031
134491380,4ptp4l0-21swapper/122:20:121
134491380,4ptp4l0-21swapper/122:10:131
134491380,4ptp4l0-21swapper/119:33:551
134491380,4ptp4l0-21swapper/119:26:471
134491380,4ptp4l0-21swapper/100:10:111
134491380,3ptp4l32150-21df19:35:132
134491380,3ptp4l0-21swapper/200:25:492
134491380,3ptp4l0-21swapper/100:31:281
2028499371,3cyclictest4595-21fschecks_time19:45:151
2028499371,32cyclictest2318-21gnome-shell23:30:591
134491370,4ptp4l0-21swapper/123:27:081
134491370,4ptp4l0-21swapper/122:30:491
134491370,4ptp4l0-21swapper/120:20:081
134491370,4ptp4l0-21swapper/119:20:191
134491370,4ptp4l0-21swapper/119:20:191
134491370,3ptp4l0-21swapper/119:12:491
2028499351,30cyclictest2318-21gnome-shell19:35:581
178142285,14sleep217811-21apt-get19:05:132
196112215,9sleep30-21swapper/319:06:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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