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2025-12-30 - 00:57
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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 Dec 29, 2025 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491710,3ptp4l121rcu_preempt10:15:150
24515997013,10cyclictest11249-21taskset08:57:233
24515996914,11cyclictest4380-21taskset11:01:213
24515996913,11cyclictest17470-21taskset08:04:133
24515996913,10cyclictest25240-21taskset09:29:293
24515996814,12cyclictest4657-21taskset12:13:023
24515996814,11cyclictest9408-21chrt11:14:133
24515996814,11cyclictest27471-21taskset10:44:113
24515996813,52cyclictest26751-21chrt08:22:193
24515996813,11cyclictest32078-21chrt10:54:223
24515996813,11cyclictest28536-21chrt07:15:393
24515996813,10cyclictest8856-21chrt10:01:423
24515996715,12cyclictest6696-21chrt09:58:463
24515996711,53cyclictest0-21swapper/308:05:193
24515996614,11cyclictest29638-21chrt09:36:553
24515996515,10cyclictest11635-21chrt10:10:013
24515996514,11cyclictest22845-21taskset10:34:083
24515996514,10cyclictest31885-21taskset09:41:003
24515996414,16cyclictest25018-21timerandwakeup11:45:273
134491640,4ptp4l0-21swapper/209:10:122
281802630,3sleep10-21swapper/107:15:251
24515996315,11cyclictest27787-21chrt11:53:403
24515996314,12cyclictest9661-21taskset12:25:053
24515996314,11cyclictest1361-21taskset08:36:153
24515996314,10cyclictest15722-21taskset09:05:313
24515996313,11cyclictest16614-21seq11:30:053
134491630,3ptp4l0-21swapper/208:35:192
2451599627,12cyclictest7983-21awk08:50:223
2451599627,12cyclictest7983-21awk08:50:223
24515996214,11cyclictest11129-21seq10:06:253
24515996214,10cyclictest29137-21chrt07:20:093
24515996213,11cyclictest9255-21taskset12:22:443
80312610,4sleep10-21swapper/110:00:201
24515996116,11cyclictest27567-21chrt09:34:513
24515996112,11cyclictest15799-21runrttasks10:17:203
134491590,3ptp4l0-21swapper/011:30:410
2451599589,46cyclictest16776-21if_enp1s010:20:143
134491580,4ptp4l0-21swapper/212:05:222
134491580,4ptp4l0-21swapper/011:57:030
134491580,4ptp4l0-21swapper/007:50:470
134491580,4ptp4l0-21swapper/007:05:160
134491580,3ptp4l0-21swapper/212:04:352
134491580,3ptp4l0-21swapper/207:15:192
134491570,4ptp4l0-21swapper/010:20:520
134491570,3ptp4l0-21swapper/207:50:142
134491560,5ptp4l0-21swapper/010:40:200
134491560,4ptp4l0-21swapper/210:29:072
134491560,4ptp4l0-21swapper/110:08:461
134491560,3ptp4l0-21swapper/207:46:362
327582550,3sleep30-21swapper/309:45:143
134491550,4ptp4l0-21swapper/211:05:092
134491550,4ptp4l0-21swapper/208:06:272
2451599547,6cyclictest134491ptp4l08:50:003
134491540,4ptp4l0-21swapper/207:11:572
134491540,4ptp4l0-21swapper/107:22:581
134491540,4ptp4l0-21swapper/010:08:190
134491540,4ptp4l0-21swapper/009:50:070
134491540,4ptp4l0-21swapper/007:48:170
134491540,17ptp4l4777-21ls07:35:201
13272540,5sleep30-21swapper/307:30:123
24515995314,10cyclictest6264-21taskset07:40:053
24515995313,10cyclictest2381-21/usr/sbin/munin09:50:143
134491530,4ptp4l0-21swapper/211:36:122
134491530,4ptp4l0-21swapper/211:26:102
134491530,4ptp4l0-21swapper/209:59:522
134491530,4ptp4l0-21swapper/207:28:172
134491530,4ptp4l0-21swapper/010:55:310
134491530,4ptp4l0-21swapper/010:55:310
134491530,3ptp4l0-21swapper/209:05:032
134491530,3ptp4l0-21swapper/207:31:592
134491530,3ptp4l0-21swapper/011:00:200
24515995213,9cyclictest0-21swapper/312:17:423
24515995212,36cyclictest590-21smartctl10:55:193
24515995212,36cyclictest590-21smartctl10:55:193
134491520,4ptp4l0-21swapper/212:19:392
134491520,4ptp4l0-21swapper/209:25:462
134491520,4ptp4l0-21swapper/010:26:360
134491520,3ptp4l0-21swapper/209:51:222
24515995116,11cyclictest5452-21taskset07:35:323
24515995116,11cyclictest13873-21taskset12:33:063
24515995113,15cyclictest1301-21snmpd08:40:303
134491510,5ptp4l0-21swapper/209:47:372
134491510,4ptp4l0-21swapper/209:33:352
134491510,4ptp4l0-21swapper/207:37:122
134491510,4ptp4l0-21swapper/009:41:090
134491510,4ptp4l0-21swapper/007:30:070
134491510,2ptp4l0-21swapper/308:15:213
134491510,16ptp4l0-21swapper/208:21:342
24515995013,9cyclictest1018-21taskset07:29:233
24515995012,35cyclictest12680-21memory09:00:213
134491500,5ptp4l0-21swapper/107:06:161
134491500,4ptp4l0-21swapper/211:44:212
134491500,4ptp4l0-21swapper/210:01:382
134491500,4ptp4l0-21swapper/207:57:052
134491500,4ptp4l0-21swapper/207:57:042
134491500,3ptp4l0-21swapper/211:45:382
2451599497,4cyclictest137891phc2sys10:25:193
24515994915,11cyclictest32322-21taskset12:02:373
24515994914,11cyclictest10480-21chrt07:48:093
134491490,4ptp4l0-21swapper/111:09:161
134491490,4ptp4l0-21swapper/007:29:260
134491490,3ptp4l0-21swapper/012:14:390
134491490,3ptp4l0-21swapper/010:30:300
24515994815,10cyclictest6712-21runrttasks11:06:473
24515994811,7cyclictest28936-21ls08:25:293
134491480,4ptp4l0-21swapper/207:43:072
134491480,3ptp4l0-21swapper/211:33:462
134491480,3ptp4l0-21swapper/008:55:540
134491480,2ptp4l0-21swapper/212:27:192
2451599477,6cyclictest134491ptp4l09:15:263
24515994715,11cyclictest18139-21runrttasks09:12:063
24515994714,10cyclictest25210-21taskset10:39:533
24515994713,30cyclictest25009-21idleruntime07:10:173
24515994713,10cyclictest11541-21chrt11:17:013
134491470,4ptp4l0-21swapper/211:20:152
134491470,3ptp4l0-21swapper/111:02:191
134491470,3ptp4l0-21swapper/010:52:380
134491470,2ptp4l0-21swapper/008:38:010
24515994613,9cyclictest13776-21taskset11:20:583
134491460,4ptp4l0-21swapper/112:20:571
134491460,3ptp4l0-21swapper/211:13:212
134491460,3ptp4l0-21swapper/011:51:420
134491460,3ptp4l0-21swapper/010:45:360
134491460,2ptp4l0-21swapper/012:32:210
24515994514,11cyclictest31748-21taskset08:34:453
134491450,9ptp4l0-21swapper/208:56:532
134491450,4ptp4l0-21swapper/209:03:382
134491450,4ptp4l0-21swapper/112:33:081
134491450,4ptp4l0-21swapper/009:46:160
134491450,3ptp4l0-21swapper/008:07:430
24515994414,11cyclictest20772-21taskset11:37:213
24515994410,7cyclictest20735-21hddtemp_smartct08:10:183
24515994410,32cyclictest29567-21ls11:55:273
134491440,9ptp4l0-21swapper/212:39:272
134491440,4ptp4l0-21swapper/008:22:060
134491440,3ptp4l0-21swapper/110:19:271
134491440,3ptp4l0-21swapper/107:40:301
134491430,9ptp4l0-21swapper/208:04:042
134491430,5ptp4l0-21swapper/009:05:150
134491430,4ptp4l22595-21apt-get08:15:132
134491430,4ptp4l0-21swapper/208:14:302
134491430,4ptp4l0-21swapper/010:36:050
134491430,3ptp4l24238-21ls07:09:590
134491430,3ptp4l0-21swapper/109:56:241
134491430,10ptp4l0-21swapper/208:44:102
134491420,4ptp4l7459-21iostat08:50:170
134491420,4ptp4l7459-21iostat08:50:170
134491420,4ptp4l16277-21apt-get10:20:091
134491420,4ptp4l13747-21iostat07:55:181
134491420,4ptp4l13747-21iostat07:55:181
134491420,4ptp4l12004-21ntp_states07:50:223
134491420,4ptp4l10255-21irqstats08:55:211
134491420,4ptp4l0-21swapper/212:14:332
134491420,4ptp4l0-21swapper/007:41:080
134491420,4ptp4l0-21swapper/007:22:110
134491420,3ptp4l16637-21apt-get11:30:131
134491420,3ptp4l101ktimersoftd/008:31:270
134491420,3ptp4l0-21swapper/208:54:462
134491420,3ptp4l0-21swapper/208:54:462
134491420,3ptp4l0-21swapper/109:29:471
24515994114,11cyclictest23220-21chrt11:44:053
24513994136,3cyclictest25-21ksoftirqd/108:55:001
24513994136,3cyclictest25-21ksoftirqd/108:55:001
134491410,5ptp4l7435-21tune2fs10:00:160
134491410,5ptp4l0-21swapper/210:20:222
134491410,5ptp4l0-21swapper/108:35:151
134491410,4ptp4l28550-21ntp_states08:25:240
134491410,4ptp4l23467-21df_inode10:35:131
134491410,4ptp4l21890-21meminfo09:20:213
134491410,4ptp4l20609-21diskstats08:10:170
134491410,4ptp4l0-21swapper/009:24:270
134491410,3ptp4l32449-21apt-get09:45:111
134491410,3ptp4l27836-21apt-get09:35:121
134491410,3ptp4l26972-21apt-get08:25:021
134491410,3ptp4l16070-21iostat_ios08:00:180
134491410,3ptp4l121rcu_preempt10:44:301
134491410,3ptp4l0-21swapper/008:44:230
24515994014,11cyclictest29494-21chrt10:45:393
24514994034,4cyclictest33-21ksoftirqd/208:33:372
134491400,8ptp4l0-21swapper/210:36:142
134491400,5ptp4l9695-21grep10:05:162
134491400,5ptp4l24180-21meminfo09:25:200
134491400,5ptp4l19482-21if_err_enp4s011:35:171
134491400,5ptp4l0-21swapper/112:05:221
134491400,5ptp4l0-21swapper/111:15:171
134491400,4ptp4l27263-21fw_packets07:15:150
134491400,4ptp4l13702-21/usr/sbin/munin07:55:160
134491400,4ptp4l13702-21/usr/sbin/munin07:55:160
134491400,4ptp4l0-21swapper/210:42:062
134491400,4ptp4l0-21swapper/210:33:392
134491400,4ptp4l0-21swapper/210:16:072
134491400,4ptp4l0-21swapper/210:12:202
134491400,4ptp4l0-21swapper/208:48:582
134491400,4ptp4l0-21swapper/207:20:212
134491400,4ptp4l0-21swapper/112:29:081
134491400,4ptp4l0-21swapper/110:45:231
134491400,4ptp4l0-21swapper/109:40:121
134491400,4ptp4l0-21swapper/109:30:191
134491400,4ptp4l0-21swapper/012:25:030
134491400,4ptp4l0-21swapper/012:21:430
134491400,4ptp4l0-21swapper/012:06:330
134491400,4ptp4l0-21swapper/011:05:180
134491400,4ptp4l0-21swapper/009:56:210
134491400,4ptp4l0-21swapper/009:35:200
134491400,4ptp4l0-21swapper/009:31:370
134491400,3ptp4l20295-21users09:15:290
134491400,3ptp4l10571-21irqstats11:15:180
134491400,3ptp4l0-21swapper/012:19:190
134491400,10ptp4l0-21swapper/112:01:351
134491390,5ptp4l0-21swapper/009:00:140
134491390,4ptp4l0-21swapper/312:38:083
134491390,4ptp4l0-21swapper/312:05:243
134491390,4ptp4l0-21swapper/311:25:253
134491390,4ptp4l0-21swapper/212:30:492
134491390,4ptp4l0-21swapper/212:20:252
134491390,4ptp4l0-21swapper/211:16:502
134491390,4ptp4l0-21swapper/211:00:052
134491390,4ptp4l0-21swapper/210:58:272
134491390,4ptp4l0-21swapper/210:58:272
134491390,4ptp4l0-21swapper/209:38:022
134491390,4ptp4l0-21swapper/209:22:202
134491390,4ptp4l0-21swapper/209:15:172
134491390,4ptp4l0-21swapper/112:35:171
134491390,4ptp4l0-21swapper/111:10:161
134491390,4ptp4l0-21swapper/110:30:161
134491390,4ptp4l0-21swapper/109:15:051
134491390,4ptp4l0-21swapper/109:05:221
134491390,4ptp4l0-21swapper/108:45:171
134491390,4ptp4l0-21swapper/108:40:291
134491390,4ptp4l0-21swapper/108:05:481
134491390,4ptp4l0-21swapper/107:51:201
134491390,4ptp4l0-21swapper/107:30:141
134491390,4ptp4l0-21swapper/107:28:321
134491390,4ptp4l0-21swapper/012:01:500
134491390,4ptp4l0-21swapper/011:46:270
134491390,4ptp4l0-21swapper/011:40:460
134491390,4ptp4l0-21swapper/011:35:140
134491390,4ptp4l0-21swapper/011:20:140
134491390,4ptp4l0-21swapper/010:10:500
134491390,4ptp4l0-21swapper/008:45:060
134491390,4ptp4l0-21swapper/008:18:220
134491390,4ptp4l0-21swapper/007:35:200
134491390,3ptp4l8001-21iostat_ios11:10:180
134491390,3ptp4l30082-21apt-get10:50:101
134491390,3ptp4l14841-21iostat12:35:170
134491390,3ptp4l0-21swapper/108:20:281
134491390,3ptp4l0-21swapper/107:45:151
46198380,4rtkit-daemon0-21swapper/112:15:231
134491380,5ptp4l0-21swapper/307:55:163
134491380,5ptp4l0-21swapper/307:55:163
134491380,4ptp4l27113-21gzip11:50:262
134491380,4ptp4l0-21swapper/210:51:262
134491380,4ptp4l0-21swapper/209:40:412
134491380,4ptp4l0-21swapper/208:26:312
134491380,4ptp4l0-21swapper/111:53:241
134491380,4ptp4l0-21swapper/111:43:371
134491380,4ptp4l0-21swapper/111:25:101
134491380,4ptp4l0-21swapper/111:20:141
134491380,4ptp4l0-21swapper/110:55:101
134491380,4ptp4l0-21swapper/110:55:101
134491380,4ptp4l0-21swapper/110:25:191
134491380,4ptp4l0-21swapper/110:10:261
134491380,4ptp4l0-21swapper/109:51:021
134491380,4ptp4l0-21swapper/109:20:221
134491380,4ptp4l0-21swapper/109:12:551
134491380,4ptp4l0-21swapper/109:02:411
134491380,4ptp4l0-21swapper/108:30:551
134491380,4ptp4l0-21swapper/108:19:341
134491380,3ptp4l0-21swapper/211:55:242
134491380,3ptp4l0-21swapper/111:47:161
134491380,3ptp4l0-21swapper/108:12:581
134491380,3ptp4l0-21swapper/108:00:021
134491380,3ptp4l0-21swapper/107:11:141
134491380,3ptp4l0-21swapper/009:10:020
134491380,2ptp4l0-21swapper/011:25:070
134491370,5ptp4l0-21swapper/210:49:262
134491370,4ptp4l0-21swapper/112:12:091
134491370,4ptp4l0-21swapper/111:55:141
221822244,12sleep30-21swapper/307:05:143
224882182,10sleep222604-21hddtemp_smartct07:05:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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