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2026-06-23 - 01:21
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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 Mon Jun 22, 2026 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2680221740,6sleep21823699cyclictest12:05:192
134491760,9ptp4l17566-21users07:05:263
1823699749,62cyclictest29858-21awk12:10:272
18236997110,58cyclictest20492sleep210:00:472
1823699698,58cyclictest2884-21irqrtprio07:45:202
18236996812,53cyclictest9723-21cstates11:30:152
1823699667,56cyclictest0-21swapper/207:57:362
1823699656,16cyclictest22191-21awk09:35:242
134491640,4ptp4l4400-21apt-get07:50:110
1823699637,53cyclictest19153-21fschecks_time11:50:152
1823699627,53cyclictest0-21swapper/209:50:272
1823699627,53cyclictest0-21swapper/209:50:272
1823699627,11cyclictest409-21cat12:20:012
134491620,19ptp4l976-21irqstats08:50:190
134491610,5ptp4l1823799cyclictest10:50:133
1823699607,18cyclictest212-21systemd-journal10:23:012
1823699607,18cyclictest212-21systemd-journal10:23:012
1823699605,14cyclictest0-21swapper/211:00:222
134491600,15ptp4l0-21swapper/008:35:160
1823699597,14cyclictest2937-21fschecks_count11:15:142
1823699588,10cyclictest15661-21cat11:40:262
1823699587,9cyclictest16489-21awk11:45:122
134491580,5ptp4l0-21swapper/207:07:092
134491580,3ptp4l0-21swapper/212:25:172
134491570,4ptp4l0-21swapper/208:05:462
134491570,3ptp4l0-21swapper/312:06:143
134491570,3ptp4l0-21swapper/207:27:272
1823699568,17cyclictest25703-21grep09:45:132
134491560,3ptp4l0-21swapper/308:30:223
1823699558,18cyclictest16851-21cat09:25:172
18236995514,38cyclictest0-21swapper/208:41:522
134491550,3ptp4l0-21swapper/210:40:442
1823699548,11cyclictest16122-21grep08:15:122
1823699543,16cyclictest19790-21phc2sys09:30:212
134491540,4ptp4l0-21swapper/210:15:402
134491540,4ptp4l0-21swapper/009:14:190
134491540,4ptp4l0-21swapper/009:04:140
1823699537,43cyclictest20121-21/usr/sbin/munin08:20:272
134491530,7ptp4l25-21ksoftirqd/110:08:471
134491530,11ptp4l0-21swapper/011:19:400
1823699525,14cyclictest5427-21cat10:10:162
134491520,3ptp4l1823799cyclictest11:45:573
134491520,11ptp4l0-21swapper/311:35:073
1823699516,13cyclictest30933-21iostat11:05:172
1823699513,16cyclictest0-21swapper/207:40:172
18236995111,13cyclictest8106-21df_inode12:35:122
134491510,5ptp4l0-21swapper/011:23:570
134491510,5ptp4l0-21swapper/007:45:110
134491510,4ptp4l1823499cyclictest10:24:140
134491510,4ptp4l1823499cyclictest10:24:140
134491510,4ptp4l0-21swapper/208:39:292
134491510,3ptp4l0-21swapper/210:30:102
18236995010,14cyclictest30683-21perl08:45:162
1823699498,38cyclictest13318-21/usr/sbin/munin10:25:272
1823699497,11cyclictest6052-21ntp_states11:20:212
1823699493,15cyclictest0-21swapper/212:30:262
134491490,3ptp4l0-21swapper/012:19:570
134491490,3ptp4l0-21swapper/008:34:130
1823699488,7cyclictest6332-21ls09:00:272
1823699488,37cyclictest8410-21mailstats09:05:252
1823699488,37cyclictest8410-21mailstats09:05:252
1823699487,8cyclictest5817-21ls07:50:262
1823699487,38cyclictest13991-21cat09:20:012
134491480,4ptp4l1823499cyclictest12:31:380
134491480,4ptp4l0-21swapper/309:56:373
134491480,3ptp4l0-21swapper/012:13:370
1823699477,10cyclictest0-21swapper/207:32:222
134491470,5ptp4l0-21swapper/308:17:303
134491470,4ptp4l0-21swapper/307:22:243
134491470,13ptp4l3799migration/311:54:243
134491470,11ptp4l28846-21meminfo09:50:213
134491470,11ptp4l28846-21meminfo09:50:213
1823699465,37cyclictest16090-21latency_hist09:25:002
18236994611,32cyclictest9796-21iostat_ios08:00:192
18236994610,7cyclictest2681-21apt-get10:05:122
134491460,3ptp4l0-21swapper/209:45:002
134491460,2ptp4l0-21swapper/011:52:110
1823699458,7cyclictest31208-21ls09:55:182
18236994511,31cyclictest7541-21diskstats11:25:142
134491450,5ptp4l22635-21dump-pmu-power07:20:003
134491450,4ptp4l0-21swapper/007:59:280
1823699447,8cyclictest12965-21open_inodes11:35:252
1823499440,2cyclictest121rcu_preempt12:10:010
134491440,5ptp4l0-21swapper/107:09:141
134491440,4ptp4l8626-21ls09:05:270
134491440,4ptp4l8626-21ls09:05:270
134491440,4ptp4l0-21swapper/011:14:440
134491440,3ptp4l28569-21/usr/sbin/munin11:00:163
134491440,3ptp4l27532-21apt-get07:30:123
1823699437,8cyclictest19765-21ls07:10:282
1823699435,15cyclictest20721-21/usr/sbin/munin08:25:252
134491430,9ptp4l0-21swapper/008:43:150
134491430,6ptp4l31480-21ntp_states11:05:223
134491430,5ptp4l0-21swapper/310:00:053
134491430,5ptp4l0-21swapper/307:25:133
134491430,3ptp4l401ktimersoftd/312:15:013
134491430,3ptp4l11892-21apt-get10:25:123
134491430,3ptp4l0-21swapper/207:19:112
134491430,3ptp4l0-21swapper/108:00:341
1823699428,14cyclictest22220-21ntp_states10:45:222
134491420,9ptp4l0-21swapper/011:36:450
134491420,9ptp4l0-21swapper/010:43:340
134491420,4ptp4l27961-21apt-get08:40:133
134491420,4ptp4l0-21swapper/310:30:443
134491420,4ptp4l0-21swapper/309:15:233
134491420,4ptp4l0-21swapper/008:20:220
134691410,10getstats0-21swapper/008:02:490
134491410,9ptp4l0-21swapper/007:22:220
134491410,5ptp4l0-21swapper/310:45:193
134491410,5ptp4l0-21swapper/308:05:133
134491410,5ptp4l0-21swapper/209:10:242
134491410,5ptp4l0-21swapper/107:55:261
134491410,5ptp4l0-21swapper/008:15:160
134491410,5ptp4l0-21swapper/007:31:290
134491410,4ptp4l26056-21df_inode10:55:142
134491410,4ptp4l21507-21meminfo07:15:190
134491410,4ptp4l18156-21users10:35:290
134491410,4ptp4l16484-21apt-get10:35:123
134491410,4ptp4l0-21swapper/312:30:153
134491410,4ptp4l0-21swapper/010:28:540
134491410,4ptp4l0-21swapper/009:30:160
134491410,4ptp4l0-21swapper/007:40:180
134491410,3ptp4l13821-21apt-get08:10:132
134491410,3ptp4l121rcu_preempt07:55:163
18236994011,8cyclictest1995-21sensors_temp12:20:252
1823599409,30cyclictest6566-21kworker/1:010:21:001
1823599409,30cyclictest6566-21kworker/1:010:20:591
1823599403,35cyclictest0-21swapper/111:15:281
134491400,6ptp4l22981-21cron09:40:013
134491400,5ptp4l7179-21/usr/sbin/munin12:30:281
134491400,5ptp4l30646-21df_abs11:05:130
134491400,5ptp4l15157-21ls11:40:203
134491400,5ptp4l0-21swapper/311:30:173
134491400,5ptp4l0-21swapper/310:40:113
134491400,5ptp4l0-21swapper/309:10:293
134491400,5ptp4l0-21swapper/308:55:013
134491400,5ptp4l0-21swapper/210:35:152
134491400,5ptp4l0-21swapper/207:35:242
134491400,5ptp4l0-21swapper/012:21:340
134491400,5ptp4l0-21swapper/011:26:420
134491400,5ptp4l0-21swapper/009:15:160
134491400,5ptp4l0-21swapper/008:26:490
134491400,4ptp4l31211-21memory08:45:223
134491400,4ptp4l2820-21diskstats08:55:163
134491400,4ptp4l27421-21apt-get08:39:333
134491400,4ptp4l24134-21iostat12:00:183
134491400,4ptp4l23834-21/usr/sbin/munin10:50:162
134491400,4ptp4l23250-21apt-get09:40:123
134491400,4ptp4l16738-21df_inode11:45:140
134491400,4ptp4l14663-21irqstats08:10:200
134491400,4ptp4l10707-21ntp_states10:20:233
134491400,4ptp4l10707-21ntp_states10:20:223
134491400,4ptp4l0-21swapper/309:30:013
134491400,4ptp4l0-21swapper/308:20:253
134491400,4ptp4l0-21swapper/308:00:123
134491400,4ptp4l0-21swapper/112:05:141
134491400,4ptp4l0-21swapper/107:20:181
134491400,4ptp4l0-21swapper/012:35:130
134491400,4ptp4l0-21swapper/012:01:320
134491400,4ptp4l0-21swapper/011:02:190
134491400,4ptp4l0-21swapper/010:45:180
134491400,4ptp4l0-21swapper/010:31:020
134491400,4ptp4l0-21swapper/009:56:020
134491400,4ptp4l0-21swapper/009:48:200
134491400,4ptp4l0-21swapper/009:27:470
134491400,4ptp4l0-21swapper/008:58:270
134491400,4ptp4l0-21swapper/007:12:570
1823699399,27cyclictest2360-21latency_hist11:15:012
1823699393,8cyclictest0-21swapper/208:55:262
134491390,5ptp4l31920-21proc_pri12:15:241
134491390,5ptp4l0-21swapper/311:10:143
134491390,5ptp4l0-21swapper/307:40:103
134491390,5ptp4l0-21swapper/011:55:240
134491390,5ptp4l0-21swapper/007:09:030
134491390,4ptp4l16608-21if_enp1s008:15:161
134491390,4ptp4l0-21swapper/312:35:153
134491390,4ptp4l0-21swapper/311:55:253
134491390,4ptp4l0-21swapper/311:27:333
134491390,4ptp4l0-21swapper/310:07:103
134491390,4ptp4l0-21swapper/309:30:163
134491390,4ptp4l0-21swapper/309:05:253
134491390,4ptp4l0-21swapper/309:05:243
134491390,4ptp4l0-21swapper/309:00:273
134491390,4ptp4l0-21swapper/308:25:173
134491390,4ptp4l0-21swapper/308:10:303
134491390,4ptp4l0-21swapper/307:53:083
134491390,4ptp4l0-21swapper/307:45:303
134491390,4ptp4l0-21swapper/307:10:273
134491390,4ptp4l0-21swapper/212:00:152
134491390,4ptp4l0-21swapper/208:50:212
134491390,4ptp4l0-21swapper/208:30:032
134491390,4ptp4l0-21swapper/207:21:402
134491390,4ptp4l0-21swapper/111:20:191
134491390,4ptp4l0-21swapper/110:30:191
134491390,4ptp4l0-21swapper/108:55:551
134491390,4ptp4l0-21swapper/108:40:161
134491390,4ptp4l0-21swapper/108:34:281
134491390,4ptp4l0-21swapper/012:25:230
134491390,4ptp4l0-21swapper/011:30:350
134491390,4ptp4l0-21swapper/010:55:320
134491390,4ptp4l0-21swapper/010:53:580
134491390,4ptp4l0-21swapper/010:15:040
134491390,4ptp4l0-21swapper/010:10:110
134491390,4ptp4l0-21swapper/010:05:020
134491390,4ptp4l0-21swapper/009:54:150
134491390,4ptp4l0-21swapper/009:54:150
134491390,4ptp4l0-21swapper/009:40:200
134491390,4ptp4l0-21swapper/009:36:110
134491390,4ptp4l0-21swapper/009:22:230
134491390,4ptp4l0-21swapper/008:47:090
134491390,4ptp4l0-21swapper/008:06:170
134491390,4ptp4l0-21swapper/007:35:140
134491390,4ptp4l0-21swapper/007:28:560
134491390,3ptp4l9473-21users12:35:261
134491390,3ptp4l3726-21ntp_states11:15:223
134491390,3ptp4l22371-21ntp_states11:55:241
134491390,3ptp4l14347-21df11:40:120
134491390,3ptp4l0-21swapper/110:59:151
134491390,2ptp4l25752-21apt-get10:55:113
134491380,5ptp4l0-21swapper/309:45:133
134491380,4ptp4l0-21swapper/312:25:063
134491380,4ptp4l0-21swapper/312:20:173
134491380,4ptp4l0-21swapper/312:15:143
134491380,4ptp4l0-21swapper/311:20:113
134491380,4ptp4l0-21swapper/310:17:513
134491380,4ptp4l0-21swapper/310:10:293
134491380,4ptp4l0-21swapper/309:20:293
134491380,4ptp4l0-21swapper/307:35:203
134491380,4ptp4l0-21swapper/211:56:562
134491380,4ptp4l0-21swapper/112:25:111
134491380,4ptp4l0-21swapper/111:49:061
134491380,4ptp4l0-21swapper/111:40:361
134491380,4ptp4l0-21swapper/110:35:241
134491380,4ptp4l0-21swapper/110:18:481
134491380,4ptp4l0-21swapper/109:30:371
134491380,4ptp4l0-21swapper/109:25:411
134491380,4ptp4l0-21swapper/109:10:301
134491380,4ptp4l0-21swapper/108:25:301
134491380,4ptp4l0-21swapper/107:14:521
134491380,4ptp4l0-21swapper/010:01:010
134491380,3ptp4l25815-21hddtemp_smartct08:35:181
134491380,3ptp4l0-21swapper/112:01:581
134491380,3ptp4l0-21swapper/111:13:151
134491380,3ptp4l0-21swapper/111:00:121
134491380,3ptp4l0-21swapper/109:47:241
134491380,3ptp4l0-21swapper/108:48:521
134491380,3ptp4l0-21swapper/107:15:091
134491370,4ptp4l0-21swapper/110:46:231
134491370,4ptp4l0-21swapper/110:25:101
134491370,4ptp4l0-21swapper/108:21:131
134491370,3ptp4l0-21swapper/112:24:441
134491370,3ptp4l0-21swapper/112:12:451
134491370,3ptp4l0-21swapper/111:51:471
134491370,3ptp4l0-21swapper/111:38:061
134491370,3ptp4l0-21swapper/111:30:241
134491370,3ptp4l0-21swapper/111:29:551
134491370,3ptp4l0-21swapper/110:51:581
134491370,3ptp4l0-21swapper/110:40:061
134491370,3ptp4l0-21swapper/110:11:171
134491370,3ptp4l0-21swapper/110:00:091
134491370,3ptp4l0-21swapper/109:50:081
134491370,3ptp4l0-21swapper/109:50:081
134491370,3ptp4l0-21swapper/109:22:101
134491370,3ptp4l0-21swapper/109:15:411
134491370,3ptp4l0-21swapper/109:08:411
134491370,3ptp4l0-21swapper/109:08:401
134491370,3ptp4l0-21swapper/109:04:231
134491370,3ptp4l0-21swapper/108:50:071
134491370,3ptp4l0-21swapper/108:10:061
134491370,3ptp4l0-21swapper/108:06:021
134491370,3ptp4l0-21swapper/107:53:131
134491370,3ptp4l0-21swapper/107:45:431
134491370,3ptp4l0-21swapper/107:40:371
134491370,3ptp4l0-21swapper/107:39:321
134491370,3ptp4l0-21swapper/107:32:371
134491360,3ptp4l0-21swapper/111:05:261
134491360,3ptp4l0-21swapper/109:56:451
134491360,3ptp4l0-21swapper/109:40:081
134491360,3ptp4l0-21swapper/109:37:121
134491360,3ptp4l0-21swapper/107:27:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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