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2025-11-16 - 03:09
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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 Sat Nov 15, 2025 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2573621530,3sleep10-21swapper/111:35:221
30761997215,11cyclictest26493-21chrt10:26:152
30761996815,11cyclictest28862-21seq09:23:422
2847191680,10ptp4l28825-21fschecks_time07:05:171
30761996716,11cyclictest19612-21chrt10:12:142
30761996614,12cyclictest1940-21taskset11:52:112
30761996613,10cyclictest3375-21chrt10:45:442
30761996612,17cyclictest31635-21wc09:30:142
30761996515,10cyclictest5495-21chrt08:34:392
30761996514,11cyclictest5945-21chrt10:53:182
30761996514,11cyclictest22473-21taskset11:29:372
30761996511,11cyclictest7978-21sed08:40:002
30761996414,11cyclictest5756-21chrt09:42:332
36032630,3sleep3401ktimersoftd/311:55:293
30761996318,11cyclictest15189-21taskset11:13:042
30761996316,11cyclictest21782-21chrt09:09:562
30761996313,11cyclictest262802sleep208:09:592
30761996219,10cyclictest17049-21chrt08:58:462
30761996218,11cyclictest26354-21taskset09:16:302
30761996215,12cyclictest22020-21taskset10:18:292
30761996119,10cyclictest26809-21chrt11:35:552
30761996111,47cyclictest8509-21cut11:00:002
30761996110,16cyclictest1283-21seq08:25:142
2847191600,4ptp4l0-21swapper/209:35:242
3076199599,46cyclictest23495-21timedrift09:10:282
30761995919,10cyclictest763-21chrt08:24:122
30761995918,12cyclictest22993-21taskset12:39:012
30761995918,11cyclictest9426-21taskset12:10:132
30761995911,44cyclictest9861-21vmstat08:40:302
2847191590,4ptp4l0-21swapper/309:49:063
2847191590,4ptp4l0-21swapper/207:55:262
2847191590,3ptp4l0-21swapper/311:45:213
30761995818,15cyclictest19877-21taskset11:20:542
30761995818,10cyclictest14608-21taskset08:52:042
30761995813,10cyclictest15076-21diskstats07:45:162
2847191580,5ptp4l0-21swapper/108:45:301
3076199571,53cyclictest0-21swapper/210:40:222
3076199571,53cyclictest0-21swapper/210:40:212
30761995714,11cyclictest21891-21chrt08:00:082
2847191570,4ptp4l12877-21cron10:00:002
2847191570,4ptp4l0-21swapper/309:40:223
2847191570,4ptp4l0-21swapper/011:50:310
2847191570,3ptp4l0-21swapper/311:10:373
30761995618,11cyclictest13700-21chrt12:18:392
30761995615,9cyclictest28513-21runrttasks08:13:592
2847191560,4ptp4l0-21swapper/308:46:133
2847191560,4ptp4l0-21swapper/307:26:003
3076199559,24cyclictest2821-21latency_hist07:20:002
30761995518,10cyclictest29394-21taskset11:41:232
30761995517,10cyclictest4174-21chrt11:56:062
30761995515,11cyclictest12189-21taskset08:45:422
30761995510,17cyclictest23457-21irqrtprio11:30:242
2847191550,6ptp4l0-21swapper/307:12:323
2847191550,4ptp4l0-21swapper/310:19:353
2847191550,4ptp4l0-21swapper/309:14:173
2847191550,4ptp4l0-21swapper/307:57:483
2847191550,4ptp4l0-21swapper/008:52:150
2847191550,3ptp4l0-21swapper/310:10:383
2847191550,3ptp4l0-21swapper/309:15:263
30761995413,10cyclictest1-21systemd07:20:472
2847191540,4ptp4l0-21swapper/311:01:213
2847191540,4ptp4l0-21swapper/310:09:093
2847191540,4ptp4l0-21swapper/308:59:483
2847191540,4ptp4l0-21swapper/308:39:093
2847191540,4ptp4l0-21swapper/307:48:063
2847191540,4ptp4l0-21swapper/307:34:153
30761995313,11cyclictest103212chrt09:51:522
2847191530,4ptp4l0-21swapper/307:19:573
2847191530,4ptp4l0-21swapper/109:03:211
2847191530,3ptp4l0-21swapper/310:37:383
3076199529,11cyclictest310-21dbus-daemon07:25:252
30761995218,10cyclictest6764-21taskset12:03:362
2847191520,3ptp4l0-21swapper/311:35:183
30761995117,10cyclictest10402-21taskset11:01:002
30761995113,6cyclictest2847191ptp4l12:26:472
30761995111,8cyclictest11632-21ls07:35:282
30761995110,18cyclictest553-21date07:14:592
2847191510,4ptp4l0-21swapper/312:13:573
2847191510,3ptp4l0-21swapper/312:16:263
2847191510,3ptp4l0-21swapper/310:20:103
2847191510,14ptp4l0-21swapper/112:20:471
3076199509,10cyclictest28467-21expr10:30:282
30761995016,11cyclictest31871-21taskset11:48:252
30761995015,9cyclictest24192-21taskset10:21:252
30761995015,8cyclictest13154-21apt-get10:00:142
2847191500,4ptp4l0-21swapper/110:29:091
2847191500,4ptp4l0-21swapper/011:10:210
2847191500,3ptp4l0-21swapper/310:00:273
2847191500,3ptp4l0-21swapper/010:55:490
2847191490,4ptp4l0-21swapper/007:31:380
2847191490,10ptp4l0-21swapper/308:01:223
30761994811,8cyclictest12420-21ssh11:05:292
30761994811,7cyclictest2849691phc2sys12:30:222
2847191480,7ptp4l28627-21df07:05:140
2847191480,4ptp4l0-21swapper/112:33:401
2847191480,12ptp4l0-21swapper/011:15:180
2847191480,11ptp4l0-21swapper/012:01:500
128832480,5sleep10-21swapper/108:50:131
2847191470,4ptp4l0-21swapper/309:07:073
2847191470,4ptp4l0-21swapper/109:42:421
188652470,4sleep018869-21cpuspeed_turbos12:30:160
30761994612,16cyclictest12435-21/usr/sbin/munin07:40:132
2847191460,5ptp4l0-21swapper/009:05:220
2847191460,4ptp4l0-21swapper/008:47:250
2847191460,4ptp4l0-21swapper/008:43:030
2847191460,4ptp4l0-21swapper/007:46:380
30761994510,7cyclictest18582-21ls07:50:282
2847191450,4ptp4l0-21swapper/010:21:560
2847191450,10ptp4l0-21swapper/009:50:010
30761994414,13cyclictest7812-21apt-get07:30:132
2847191440,9ptp4l0-21swapper/310:30:023
2847191440,7ptp4l5058-21sshd09:40:270
2847191440,4ptp4l32053-21irqstats08:20:201
2847191440,4ptp4l11148-21ls07:35:231
2847191440,4ptp4l0-21swapper/309:26:063
2847191440,4ptp4l0-21swapper/309:26:063
2847191440,4ptp4l0-21swapper/309:23:413
2847191440,4ptp4l0-21swapper/010:31:010
2847191440,3ptp4l0-21swapper/310:26:293
2847191440,10ptp4l0-21swapper/312:39:043
2847191430,5ptp4l7700-21iostat12:05:170
2847191430,5ptp4l15915-21diskstats11:15:173
2847191430,5ptp4l0-21swapper/308:20:243
2847191430,5ptp4l0-21swapper/209:00:292
2847191430,4ptp4l31775-21iostat08:20:200
2847191430,4ptp4l27973-21ls08:10:271
2847191430,4ptp4l0-21swapper/310:52:063
2847191430,4ptp4l0-21swapper/107:25:331
2847191430,3ptp4l18703-21apt-get12:30:163
2847191430,3ptp4l13471-21diskstats10:00:180
30761994211,8cyclictest30074-21irqstats09:25:192
30761994211,8cyclictest30074-21irqstats09:25:192
2847191420,5ptp4l5024-21df_abs12:00:161
2847191420,5ptp4l13559-21/usr/sbin/munin07:40:240
2847191420,5ptp4l0-21swapper/310:55:153
2847191420,5ptp4l0-21swapper/309:35:263
2847191420,5ptp4l0-21swapper/208:15:192
2847191420,5ptp4l0-21swapper/011:40:170
2847191420,5ptp4l0-21swapper/010:45:200
2847191420,4ptp4l7521-21/usr/sbin/munin09:45:271
2847191420,4ptp4l24227-21apt-get08:05:143
2847191420,4ptp4l16392-21apt-get12:25:143
2847191420,4ptp4l0-21swapper/308:30:183
2847191420,4ptp4l0-21swapper/307:37:153
2847191420,4ptp4l0-21swapper/108:55:321
2847191420,4ptp4l0-21swapper/108:30:251
2847191420,4ptp4l0-21swapper/107:15:271
2847191420,4ptp4l0-21swapper/012:28:310
2847191420,4ptp4l0-21swapper/009:15:240
2847191420,4ptp4l0-21swapper/009:00:590
2847191420,4ptp4l0-21swapper/007:58:580
2847191420,3ptp4l1931-21hddtemp_smartct09:35:160
2847191420,3ptp4l12450-21apt-get07:40:153
2847191420,3ptp4l0-21swapper/310:48:333
2847191410,7ptp4l0-21swapper/012:35:170
2847191410,5ptp4l0-21swapper/310:40:253
2847191410,5ptp4l0-21swapper/310:40:253
2847191410,5ptp4l0-21swapper/309:00:173
2847191410,5ptp4l0-21swapper/209:45:232
2847191410,5ptp4l0-21swapper/110:10:221
2847191410,5ptp4l0-21swapper/008:00:160
2847191410,4ptp4l29802-21iostat_ios09:25:191
2847191410,4ptp4l29802-21iostat_ios09:25:191
2847191410,4ptp4l29657-21hddtemp_smartct09:25:160
2847191410,4ptp4l29657-21hddtemp_smartct09:25:160
2847191410,4ptp4l25317-21/usr/sbin/munin08:05:220
2847191410,4ptp4l12782-21apt-get08:50:123
2847191410,4ptp4l0-21swapper/308:12:243
2847191410,4ptp4l0-21swapper/212:05:132
2847191410,4ptp4l0-21swapper/110:40:221
2847191410,4ptp4l0-21swapper/110:40:221
2847191410,4ptp4l0-21swapper/109:30:241
2847191410,4ptp4l0-21swapper/109:05:261
2847191410,4ptp4l0-21swapper/107:20:171
2847191410,4ptp4l0-21swapper/012:20:030
2847191410,4ptp4l0-21swapper/012:10:430
2847191410,4ptp4l0-21swapper/011:56:120
2847191410,4ptp4l0-21swapper/011:45:210
2847191410,4ptp4l0-21swapper/011:09:030
2847191410,4ptp4l0-21swapper/011:00:270
2847191410,4ptp4l0-21swapper/010:40:270
2847191410,4ptp4l0-21swapper/010:40:270
2847191410,4ptp4l0-21swapper/010:10:190
2847191410,4ptp4l0-21swapper/010:07:190
2847191410,4ptp4l0-21swapper/008:58:330
2847191410,4ptp4l0-21swapper/008:39:300
2847191410,4ptp4l0-21swapper/008:19:570
2847191410,4ptp4l0-21swapper/007:25:150
2847191410,4ptp4l0-21swapper/007:20:040
2847191410,4ptp4l0-21swapper/007:16:240
2847191410,3ptp4l27394-21irqstats08:10:200
2847191410,3ptp4l27119-21df09:20:161
2847191410,3ptp4l23894-21ntp_states11:30:290
2847191410,3ptp4l22489-21iostat08:00:181
2847191410,3ptp4l17065-21apt-get07:50:143
2847191410,3ptp4l0-21swapper/311:54:253
2847191410,3ptp4l0-21swapper/210:35:222
2847191410,1ptp4l0-21swapper/308:19:423
2847191400,5ptp4l0-21swapper/312:05:173
2847191400,5ptp4l0-21swapper/308:25:123
2847191400,5ptp4l0-21swapper/107:10:171
2847191400,4ptp4l29189-21awk08:15:161
2847191400,4ptp4l0-21swapper/312:20:153
2847191400,4ptp4l0-21swapper/311:40:593
2847191400,4ptp4l0-21swapper/311:29:143
2847191400,4ptp4l0-21swapper/311:20:043
2847191400,4ptp4l0-21swapper/309:55:263
2847191400,4ptp4l0-21swapper/309:50:193
2847191400,4ptp4l0-21swapper/307:20:263
2847191400,4ptp4l0-21swapper/212:24:312
2847191400,4ptp4l0-21swapper/210:05:182
2847191400,4ptp4l0-21swapper/112:13:451
2847191400,4ptp4l0-21swapper/111:50:171
2847191400,4ptp4l0-21swapper/111:29:091
2847191400,4ptp4l0-21swapper/110:36:491
2847191400,4ptp4l0-21swapper/109:10:181
2847191400,4ptp4l0-21swapper/107:50:251
2847191400,4ptp4l0-21swapper/012:15:250
2847191400,4ptp4l0-21swapper/011:35:200
2847191400,4ptp4l0-21swapper/011:28:030
2847191400,4ptp4l0-21swapper/011:22:190
2847191400,4ptp4l0-21swapper/010:54:410
2847191400,4ptp4l0-21swapper/010:36:300
2847191400,4ptp4l0-21swapper/010:27:060
2847191400,4ptp4l0-21swapper/009:55:480
2847191400,4ptp4l0-21swapper/009:48:350
2847191400,4ptp4l0-21swapper/009:31:080
2847191400,4ptp4l0-21swapper/009:20:140
2847191400,4ptp4l0-21swapper/009:10:280
2847191400,4ptp4l0-21swapper/007:50:430
2847191400,4ptp4l0-21swapper/007:38:340
2847191400,4ptp4l0-21swapper/007:10:220
2847191400,3ptp4l1540-21hddtemp_smartct08:25:170
2847191400,3ptp4l14133-21/usr/sbin/munin07:40:311
2847191400,2ptp4l21975-21meminfo12:35:251
2847191390,5ptp4l0-21swapper/311:30:023
2847191390,5ptp4l0-21swapper/308:40:133
2847191390,5ptp4l0-21swapper/110:15:121
2847191390,4ptp4l6025-21cpuspeed_turbos08:35:141
2847191390,4ptp4l15582-21/usr/sbin/munin11:15:172
2847191390,4ptp4l0-21swapper/312:00:113
2847191390,4ptp4l0-21swapper/112:15:141
2847191390,4ptp4l0-21swapper/112:07:151
2847191390,4ptp4l0-21swapper/111:46:431
2847191390,4ptp4l0-21swapper/111:20:021
2847191390,4ptp4l0-21swapper/111:15:061
2847191390,4ptp4l0-21swapper/111:11:551
2847191390,4ptp4l0-21swapper/111:05:161
2847191390,4ptp4l0-21swapper/111:01:121
2847191390,4ptp4l0-21swapper/110:31:471
2847191390,4ptp4l0-21swapper/110:20:331
2847191390,4ptp4l0-21swapper/109:51:371
2847191390,4ptp4l0-21swapper/109:37:561
2847191390,4ptp4l0-21swapper/107:55:071
2847191390,4ptp4l0-21swapper/010:15:440
2847191390,4ptp4l0-21swapper/008:30:010
2847191390,3ptp4l0-21swapper/309:30:253
2847191390,3ptp4l0-21swapper/107:30:191
2847191380,4ptp4l0-21swapper/311:05:243
2847191380,4ptp4l0-21swapper/112:27:461
2847191380,4ptp4l0-21swapper/111:56:191
2847191380,4ptp4l0-21swapper/111:40:191
2847191380,4ptp4l0-21swapper/110:05:271
2847191380,4ptp4l0-21swapper/109:15:401
2847191380,4ptp4l0-21swapper/108:40:221
2847191380,4ptp4l0-21swapper/107:46:411
2847191380,3ptp4l0-21swapper/111:32:221
2847191380,3ptp4l0-21swapper/110:02:551
2847191380,3ptp4l0-21swapper/109:55:291
2847191370,3ptp4l0-21swapper/108:25:161
2847191370,3ptp4l0-21swapper/108:05:211
2847191360,3ptp4l0-21swapper/110:46:481
30760993126,3cyclictest25-21ksoftirqd/110:53:011
2847191310,3ptp4l0-21swapper/110:55:101
41798260,20rtkit-daemon5598-21apache207:07:282
302502113,4sleep30-21swapper/307:07:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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