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2026-03-29 - 20:11
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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 Sun Mar 29, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1980421480,6sleep0732799cyclictest09:55:150
289762720,5sleep30-21swapper/309:05:173
134491630,5ptp4l0-21swapper/211:00:122
7327996022,4cyclictest9-21ksoftirqd/009:05:010
134491590,4ptp4l13221-21iostat_ios10:50:181
134491590,3ptp4l30964-21diskstats08:00:151
134491590,3ptp4l0-21swapper/107:46:591
134491580,5ptp4l0-21swapper/207:15:112
134491580,4ptp4l12390-21users11:55:292
134491580,3ptp4l20171-21cstates12:15:140
134491580,3ptp4l0-21swapper/107:30:221
134491580,3ptp4l0-21swapper/107:15:151
202462570,5sleep10-21swapper/112:15:131
134491570,4ptp4l0-21swapper/210:55:192
134491570,3ptp4l0-21swapper/208:37:042
134491560,5ptp4l0-21swapper/107:06:051
134491560,4ptp4l0-21swapper/311:51:103
134491560,4ptp4l0-21swapper/307:13:433
134491560,4ptp4l0-21swapper/211:35:272
134491560,4ptp4l0-21swapper/011:50:350
134491560,3ptp4l0-21swapper/112:22:491
134491560,3ptp4l0-21swapper/109:05:191
134491550,5ptp4l0-21swapper/007:34:180
134491550,4ptp4l0-21swapper/208:26:452
134491550,3ptp4l0-21swapper/307:50:013
134491550,3ptp4l0-21swapper/212:35:242
134491550,3ptp4l0-21swapper/109:34:571
134491550,3ptp4l0-21swapper/107:50:131
134491550,3ptp4l0-21swapper/007:54:060
134491550,11ptp4l4994-21apt-get07:05:130
134491540,4ptp4l0-21swapper/009:15:280
134491540,3ptp4l0-21swapper/210:30:282
134491540,3ptp4l0-21swapper/210:17:442
134491530,4ptp4l0-21swapper/311:24:013
732799524,3cyclictest9-21ksoftirqd/009:44:590
134491520,4ptp4l0-21swapper/108:41:511
134491520,3ptp4l0-21swapper/211:20:142
134491520,3ptp4l0-21swapper/209:02:432
134491520,3ptp4l0-21swapper/207:24:082
134491510,5ptp4l0-21swapper/007:58:520
134491510,4ptp4l0-21swapper/208:03:552
134491510,4ptp4l0-21swapper/007:26:440
7327995019,6cyclictest9-21ksoftirqd/011:12:340
134491500,4ptp4l0-21swapper/311:36:483
134491500,4ptp4l0-21swapper/311:30:203
134491500,4ptp4l0-21swapper/212:31:552
134491500,4ptp4l0-21swapper/110:08:581
134491500,4ptp4l0-21swapper/010:45:120
134491500,3ptp4l0-21swapper/210:35:222
134491500,3ptp4l0-21swapper/111:46:311
7327994915,4cyclictest9-21ksoftirqd/011:15:560
7327994915,4cyclictest9-21ksoftirqd/011:00:230
134491490,4ptp4l0-21swapper/310:46:073
134491490,4ptp4l0-21swapper/209:49:402
134491490,4ptp4l0-21swapper/208:49:482
134491490,4ptp4l0-21swapper/110:38:481
134491490,4ptp4l0-21swapper/109:58:361
134491490,4ptp4l0-21swapper/011:56:500
134491490,4ptp4l0-21swapper/009:21:560
134491490,3ptp4l0-21swapper/210:14:012
134491490,3ptp4l0-21swapper/111:30:171
7327994835,3cyclictest121rcu_preempt08:05:510
7327994820,8cyclictest9-21ksoftirqd/011:35:180
7327994819,3cyclictest9-21ksoftirqd/009:11:280
134491480,9ptp4l0-21swapper/207:35:282
134491480,4ptp4l0-21swapper/308:14:113
134491480,4ptp4l0-21swapper/212:03:032
134491480,4ptp4l0-21swapper/209:18:112
134491480,4ptp4l0-21swapper/209:08:262
134491480,4ptp4l0-21swapper/207:46:352
134491480,4ptp4l0-21swapper/011:21:290
134491480,4ptp4l0-21swapper/011:05:200
134491480,4ptp4l0-21swapper/010:30:000
134491480,4ptp4l0-21swapper/009:36:380
134491480,4ptp4l0-21swapper/008:43:360
134491480,4ptp4l0-21swapper/008:01:300
134491480,4ptp4l0-21swapper/007:41:530
134491480,3ptp4l0-21swapper/308:16:413
134491480,3ptp4l0-21swapper/210:01:202
134491480,3ptp4l0-21swapper/112:33:091
7327994722,7cyclictest9-21ksoftirqd/008:36:090
7327994720,6cyclictest9-21ksoftirqd/011:45:000
7327994717,4cyclictest9-21ksoftirqd/007:39:210
7327994717,3cyclictest9-21ksoftirqd/007:25:000
7327994715,3cyclictest9-21ksoftirqd/010:14:540
134491470,4ptp4l0-21swapper/209:27:052
134491470,4ptp4l0-21swapper/111:01:291
134491470,4ptp4l0-21swapper/010:24:030
134491470,3ptp4l0-21swapper/108:53:371
134491470,3ptp4l0-21swapper/108:53:371
7328994627,3cyclictest25-21ksoftirqd/110:43:591
7327994617,3cyclictest9-21ksoftirqd/012:07:030
7327994611,3cyclictest9-21ksoftirqd/010:00:150
134491460,4ptp4l0-21swapper/308:26:483
134491460,4ptp4l0-21swapper/209:44:452
134491460,4ptp4l0-21swapper/012:36:520
134491460,4ptp4l0-21swapper/010:37:370
134491460,4ptp4l0-21swapper/009:32:130
134491460,3ptp4l0-21swapper/209:54:302
134491460,3ptp4l0-21swapper/208:05:222
134491460,3ptp4l0-21swapper/112:04:091
134491460,3ptp4l0-21swapper/111:12:441
134491460,3ptp4l0-21swapper/011:45:310
134491460,3ptp4l0-21swapper/008:47:150
134491460,11ptp4l0-21swapper/308:33:343
134491460,10ptp4l0-21swapper/007:11:150
7327994529,13cyclictest9-21ksoftirqd/008:35:010
7327994513,3cyclictest9-21ksoftirqd/012:12:010
134491450,9ptp4l0-21swapper/009:25:270
134491450,4ptp4l11224-21ls07:15:273
134491450,4ptp4l0-21swapper/312:23:083
134491450,4ptp4l0-21swapper/312:19:333
134491450,4ptp4l0-21swapper/211:43:102
134491450,4ptp4l0-21swapper/210:25:082
134491450,4ptp4l0-21swapper/007:16:240
134491450,3ptp4l0-21swapper/211:07:342
134491450,3ptp4l0-21swapper/210:06:442
134491450,3ptp4l0-21swapper/012:04:220
134491450,3ptp4l0-21swapper/010:52:390
134491450,11ptp4l0-21swapper/207:09:552
7327994421,7cyclictest9-21ksoftirqd/010:44:540
7327994418,6cyclictest9-21ksoftirqd/009:50:460
732799441,2cyclictest121rcu_preempt10:15:340
134491440,9ptp4l0-21swapper/211:15:342
134491440,5ptp4l0-21swapper/008:10:190
134491440,4ptp4l16786-21apt-get07:30:123
134491440,4ptp4l0-21swapper/208:33:182
134491440,3ptp4l0-21swapper/307:20:153
134491440,11ptp4l0-21swapper/008:19:410
134491440,10ptp4l0-21swapper/212:10:342
732799431,2cyclictest121rcu_preempt12:30:550
134491430,8ptp4l0-21swapper/210:52:502
134491430,5ptp4l0-21swapper/311:10:263
134491430,4ptp4l19234-21apt-get09:55:102
134491430,4ptp4l0-21swapper/211:29:052
134491430,4ptp4l0-21swapper/208:21:472
134491430,4ptp4l0-21swapper/111:44:261
134491430,4ptp4l0-21swapper/107:27:561
134491430,3ptp4l8614-21ls09:30:193
134491430,3ptp4l0-21swapper/111:38:301
134491430,3ptp4l0-21swapper/111:08:501
134491430,3ptp4l0-21swapper/108:25:031
134491430,2ptp4l0-21swapper/110:20:211
134491430,10ptp4l0-21swapper/212:05:422
732799422,2cyclictest9-21ksoftirqd/010:30:000
7327994210,8cyclictest9-21ksoftirqd/009:45:130
134491420,5ptp4l33-21ksoftirqd/207:25:242
134491420,5ptp4l13133-21/usr/sbin/munin09:40:193
134491420,5ptp4l0-21swapper/210:40:232
134491420,4ptp4l0-21swapper/308:49:163
134491420,3ptp4l22295-21apt-get12:20:122
732799416,8cyclictest9-21ksoftirqd/009:05:270
732799414,3cyclictest121rcu_preempt11:30:270
732799410,2cyclictest121rcu_preempt08:29:080
134491410,8ptp4l0-21swapper/207:55:532
134491410,6ptp4l0-21swapper/310:30:143
134491410,5ptp4l702-21apt-get08:05:031
134491410,5ptp4l24893-21df_inode12:25:160
134491410,5ptp4l15740-21irqrtprio10:55:193
134491410,5ptp4l0-21swapper/312:00:193
134491410,5ptp4l0-21swapper/311:25:143
134491410,5ptp4l0-21swapper/307:55:113
134491410,5ptp4l0-21swapper/208:40:132
134491410,5ptp4l0-21swapper/010:55:140
134491410,5ptp4l0-21swapper/008:20:110
134491410,4ptp4l9534-21ntp_states11:50:232
134491410,4ptp4l3919-21irqstats09:20:193
134491410,4ptp4l30710-21users11:25:301
134491410,4ptp4l30657-21apt-get08:00:123
134491410,4ptp4l16952-21apt-get08:40:123
134491410,4ptp4l0-21swapper/311:16:363
134491410,4ptp4l0-21swapper/310:10:193
134491410,4ptp4l0-21swapper/109:15:191
134491410,3ptp4l29388-21df12:35:131
134491410,3ptp4l0-21swapper/307:45:203
7327994015,6cyclictest9-21ksoftirqd/007:50:010
732799400,2cyclictest121rcu_preempt08:59:330
134491400,5ptp4l7585-21df_abs07:10:131
134491400,5ptp4l0-21swapper/310:50:113
134491400,5ptp4l0-21swapper/209:30:202
134491400,5ptp4l0-21swapper/012:20:270
134491400,4ptp4l32709-21apt-get08:05:013
134491400,4ptp4l32057-21ps09:10:251
134491400,4ptp4l30293-21ntp_states12:35:223
134491400,4ptp4l25557-21users08:55:281
134491400,4ptp4l19445-21diskstats07:35:171
134491400,4ptp4l15430-21/usr/sbin/munin09:45:193
134491400,4ptp4l11093-21ntp_states09:35:242
134491400,4ptp4l0-21swapper/309:58:533
134491400,4ptp4l0-21swapper/309:50:253
134491400,4ptp4l0-21swapper/212:25:552
134491400,4ptp4l0-21swapper/110:45:011
134491400,4ptp4l0-21swapper/108:45:191
134491400,4ptp4l0-21swapper/107:23:591
134491400,4ptp4l0-21swapper/011:25:230
134491400,3ptp4l837-21apt-get10:25:111
134491400,3ptp4l6536-21ntp_states08:15:221
134491400,3ptp4l3511-21/usr/sbin/munin09:20:172
134491400,3ptp4l3435-21df10:30:131
134491400,3ptp4l23625-21ls11:10:262
134491400,3ptp4l19980-21irqstats07:35:213
134491400,3ptp4l17189-21df_inode09:50:151
134491400,3ptp4l0-21swapper/208:53:292
134491400,3ptp4l0-21swapper/208:53:292
137891391,3phc2sys22020-21iostat_ios07:40:172
134491390,8ptp4l0-21swapper/211:34:342
134491390,5ptp4l5587-21df_abs09:25:143
134491390,5ptp4l10414-21sed09:35:181
134491390,5ptp4l0-21swapper/311:09:183
134491390,5ptp4l0-21swapper/310:17:223
134491390,5ptp4l0-21swapper/207:51:082
134491390,4ptp4l0-21swapper/311:55:253
134491390,4ptp4l0-21swapper/311:41:543
134491390,4ptp4l0-21swapper/310:25:173
134491390,4ptp4l0-21swapper/310:20:173
134491390,4ptp4l0-21swapper/310:05:183
134491390,4ptp4l0-21swapper/310:00:223
134491390,4ptp4l0-21swapper/309:38:593
134491390,4ptp4l0-21swapper/309:00:123
134491390,4ptp4l0-21swapper/308:35:263
134491390,4ptp4l0-21swapper/308:22:403
134491390,4ptp4l0-21swapper/307:40:273
134491390,4ptp4l0-21swapper/307:26:113
134491390,4ptp4l0-21swapper/211:45:112
134491390,4ptp4l0-21swapper/209:11:042
134491390,4ptp4l0-21swapper/207:32:292
134491390,4ptp4l0-21swapper/207:12:232
134491390,4ptp4l0-21swapper/112:12:381
134491390,4ptp4l0-21swapper/112:05:151
134491390,4ptp4l0-21swapper/111:58:091
134491390,4ptp4l0-21swapper/110:55:251
134491390,4ptp4l0-21swapper/109:45:181
134491390,4ptp4l0-21swapper/109:25:151
134491390,3ptp4l31814-21irqstats10:20:172
134491390,3ptp4l27902-21ls12:30:213
134491390,3ptp4l23850-21apt-get10:05:120
134491390,3ptp4l17812-21cpuspeed_turbos12:10:133
134491390,3ptp4l0-21swapper/311:02:593
134491390,3ptp4l0-21swapper/108:35:181
134491390,2ptp4l28764-21hddtemp_smartct07:55:151
7327993834,3cyclictest9-21ksoftirqd/008:50:160
7327993834,3cyclictest9-21ksoftirqd/008:50:160
134491380,5ptp4l4722-21awk08:10:271
134491380,4ptp4l7050-21ls07:10:003
134491380,4ptp4l24742-21kernelversion08:55:192
134491380,4ptp4l0-21swapper/312:05:283
134491380,4ptp4l0-21swapper/311:47:523
134491380,4ptp4l0-21swapper/310:40:183
134491380,4ptp4l0-21swapper/309:10:183
134491380,4ptp4l0-21swapper/308:55:133
134491380,4ptp4l0-21swapper/212:18:202
134491380,4ptp4l0-21swapper/208:17:582
134491380,4ptp4l0-21swapper/208:10:182
134491380,4ptp4l0-21swapper/112:25:371
134491380,4ptp4l0-21swapper/111:23:351
134491380,4ptp4l0-21swapper/110:17:561
134491380,4ptp4l0-21swapper/109:24:371
134491380,4ptp4l0-21swapper/109:04:471
134491380,4ptp4l0-21swapper/107:43:071
134491380,3ptp4l6567-21needreboot10:35:213
134491380,3ptp4l0-21swapper/312:25:263
134491380,3ptp4l0-21swapper/309:15:113
134491380,3ptp4l0-21swapper/308:50:153
134491380,3ptp4l0-21swapper/308:50:153
134491380,3ptp4l0-21swapper/210:49:052
134491380,3ptp4l0-21swapper/111:54:391
134491380,3ptp4l0-21swapper/109:40:291
7328993732,3cyclictest25-21ksoftirqd/110:00:171
7328993731,3cyclictest25-21ksoftirqd/108:20:171
134491370,3ptp4l0-21swapper/111:15:231
134491370,3ptp4l0-21swapper/110:10:051
7328993630,3cyclictest25-21ksoftirqd/108:30:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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