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2025-12-09 - 19:00
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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 Tue Dec 09, 2025 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149352860,4sleep10-21swapper/110:40:241
2847191620,5ptp4l0-21swapper/212:30:312
2847191620,3ptp4l7269-21cat09:15:192
2847191610,4ptp4l0-21swapper/210:01:282
2847191610,3ptp4l0-21swapper/210:19:532
2847191610,3ptp4l0-21swapper/210:19:532
2847191610,26ptp4l41-21ksoftirqd/307:30:123
2847191600,3ptp4l0-21swapper/208:20:122
11690996030,4cyclictest25-21ksoftirqd/109:10:021
2847191580,3ptp4l0-21swapper/212:19:322
2847191570,4ptp4l0-21swapper/312:16:033
2847191570,4ptp4l0-21swapper/110:14:591
2847191570,3ptp4l0-21swapper/208:55:412
2847191560,4ptp4l10501-21ntp_states11:40:242
2847191560,4ptp4l0-21swapper/309:12:493
2847191560,4ptp4l0-21swapper/309:05:533
2847191560,3ptp4l0-21swapper/211:55:152
2847191560,3ptp4l0-21swapper/211:55:142
2847191560,3ptp4l0-21swapper/208:54:262
2847191550,3ptp4l0-21swapper/311:44:233
2847191550,3ptp4l0-21swapper/211:48:262
2847191550,3ptp4l0-21swapper/210:22:062
2847191540,5ptp4l0-21swapper/007:05:230
2847191540,4ptp4l0-21swapper/309:46:523
2847191540,4ptp4l0-21swapper/210:36:212
2847191540,4ptp4l0-21swapper/010:17:200
2847191540,4ptp4l0-21swapper/010:17:200
2847191540,3ptp4l0-21swapper/210:27:112
2847191540,13ptp4l9659-21diskstats07:05:161
2847191540,12ptp4l0-21swapper/309:16:263
2847191530,4ptp4l0-21swapper/209:42:062
2847191530,4ptp4l0-21swapper/011:03:460
2847191530,4ptp4l0-21swapper/007:38:540
2847191530,3ptp4l0-21swapper/207:39:072
2847191530,19ptp4l0-21swapper/109:21:011
11689995322,3cyclictest9-21ksoftirqd/011:55:000
2847191520,5ptp4l0-21swapper/211:05:252
2847191520,4ptp4l0-21swapper/309:43:183
2847191520,4ptp4l0-21swapper/211:01:162
2847191520,4ptp4l0-21swapper/209:02:142
2847191520,4ptp4l0-21swapper/207:31:252
2847191520,4ptp4l0-21swapper/007:11:240
2847191520,3ptp4l0-21swapper/311:34:213
2847191520,11ptp4l0-21swapper/310:55:163
2847191520,10ptp4l4479-21ssh08:00:303
2847191510,4ptp4l0-21swapper/211:17:082
2847191510,4ptp4l0-21swapper/210:41:462
2847191510,4ptp4l0-21swapper/012:20:300
2847191510,4ptp4l0-21swapper/011:20:470
2847191510,3ptp4l0-21swapper/207:21:232
2847191510,3ptp4l0-21swapper/009:11:380
11690995130,3cyclictest25-21ksoftirqd/110:20:001
11690995130,3cyclictest25-21ksoftirqd/110:20:001
2847191500,5ptp4l0-21swapper/011:48:410
2847191500,4ptp4l0-21swapper/212:13:452
2847191500,4ptp4l0-21swapper/211:30:522
2847191500,4ptp4l0-21swapper/210:50:182
2847191500,4ptp4l0-21swapper/210:09:032
2847191500,4ptp4l0-21swapper/009:01:110
2847191500,3ptp4l0-21swapper/307:51:013
2847191500,3ptp4l0-21swapper/212:08:592
2847191500,3ptp4l0-21swapper/211:14:092
2847191500,3ptp4l0-21swapper/110:00:221
11690995024,3cyclictest25-21ksoftirqd/107:53:501
2847191490,4ptp4l0-21swapper/208:41:162
2847191490,4ptp4l0-21swapper/011:33:380
2847191490,4ptp4l0-21swapper/008:42:260
2847191490,11ptp4l0-21swapper/207:42:392
2847191490,11ptp4l0-21swapper/207:42:392
2847191490,10ptp4l0-21swapper/309:37:133
11690994933,6cyclictest25-21ksoftirqd/108:30:001
11690994933,6cyclictest25-21ksoftirqd/108:30:001
11689994922,3cyclictest9-21ksoftirqd/010:05:310
11689994918,4cyclictest9-21ksoftirqd/008:10:240
2847191480,4ptp4l0-21swapper/308:28:463
2847191480,4ptp4l0-21swapper/308:28:463
2847191480,3ptp4l121rcu_preempt10:15:003
2847191480,3ptp4l0-21swapper/211:24:222
2847191480,3ptp4l0-21swapper/209:25:122
2847191480,3ptp4l0-21swapper/209:25:122
2847191470,8ptp4l11976-21ls08:15:272
2847191470,3ptp4l0-21swapper/207:15:092
2847191470,10ptp4l10665-21df_abs08:15:143
2847191460,9ptp4l0-21swapper/209:23:082
2847191460,4ptp4l0-21swapper/007:18:440
2847191460,12ptp4l0-21swapper/008:20:170
1169099467,4cyclictest25-21ksoftirqd/112:28:091
11690994615,3cyclictest25-21ksoftirqd/112:33:221
2847191450,8ptp4l0-21swapper/210:10:192
2847191450,6ptp4l1169099cyclictest08:30:251
2847191450,5ptp4l29384-21meminfo07:45:211
2847191450,4ptp4l0-21swapper/010:01:590
2847191450,4ptp4l0-21swapper/008:51:120
2847191450,11ptp4l0-21swapper/310:39:193
2847191450,10ptp4l1293-21snmpd08:08:173
11690994517,3cyclictest25-21ksoftirqd/111:10:271
11690994516,4cyclictest25-21ksoftirqd/111:20:301
11690994516,4cyclictest25-21ksoftirqd/108:05:021
11690994515,4cyclictest25-21ksoftirqd/111:30:231
11690994511,6cyclictest25-21ksoftirqd/112:14:591
11689994531,4cyclictest9-21ksoftirqd/009:25:260
11689994531,4cyclictest9-21ksoftirqd/009:25:260
11689994531,4cyclictest9-21ksoftirqd/008:55:260
11689994530,3cyclictest9-21ksoftirqd/012:40:010
11689994517,3cyclictest9-21ksoftirqd/008:34:500
2847191440,9ptp4l0-21swapper/009:45:190
2847191440,6ptp4l0-21swapper/208:10:352
2847191440,5ptp4l20039-21ntp_states12:00:221
2847191440,5ptp4l10978-21apt-get09:25:133
2847191440,5ptp4l10978-21apt-get09:25:133
2847191440,5ptp4l0-21swapper/310:15:133
2847191440,5ptp4l0-21swapper/310:15:133
2847191440,4ptp4l28743-21diskstats07:45:152
2847191440,4ptp4l28611-21hddtemp_smartct12:20:151
2847191440,4ptp4l19869-21meminfo12:00:190
2847191440,4ptp4l0-21swapper/009:50:110
2847191440,3ptp4l24307-21ls09:50:263
2847191440,3ptp4l0-21swapper/212:26:322
2847191440,10ptp4l0-21swapper/307:23:393
2847191440,10ptp4l0-21swapper/212:00:302
2847191440,10ptp4l0-21swapper/209:32:522
11690994431,4cyclictest25-21ksoftirqd/109:00:181
11690994430,4cyclictest25-21ksoftirqd/109:50:101
11690994430,4cyclictest25-21ksoftirqd/108:10:221
11690994430,4cyclictest25-21ksoftirqd/107:30:191
11690994430,3cyclictest25-21ksoftirqd/110:35:171
11690994430,3cyclictest25-21ksoftirqd/110:25:171
11690994429,4cyclictest25-21ksoftirqd/107:19:591
11689994430,4cyclictest9-21ksoftirqd/009:05:140
11689994429,5cyclictest9-21ksoftirqd/008:15:130
2847191430,7ptp4l0-21swapper/207:05:192
2847191430,5ptp4l18190-21/usr/sbin/munin09:40:200
2847191430,5ptp4l0-21swapper/311:10:123
2847191430,5ptp4l0-21swapper/307:15:343
2847191430,5ptp4l0-21swapper/011:05:130
2847191430,4ptp4l9968-21meminfo10:30:202
2847191430,4ptp4l620-21apt-get07:55:132
2847191430,4ptp4l4394-21apt-get10:20:133
2847191430,4ptp4l4022-21apt-get09:10:132
2847191430,4ptp4l31138-21python10:05:271
2847191430,4ptp4l31049-21df_inode07:50:130
2847191430,4ptp4l28173-21iostat11:10:170
2847191430,4ptp4l27467-21apt-get10:00:133
2847191430,4ptp4l20645-21apt-get10:55:152
2847191430,4ptp4l20518-21apt-get09:45:152
2847191430,4ptp4l18537-21ntp_states08:30:242
2847191430,4ptp4l18335-21apt-get10:50:143
2847191430,4ptp4l11721-21apt-get07:10:123
2847191430,3ptp4l0-21swapper/310:31:453
2847191430,3ptp4l0-21swapper/211:38:522
2847191430,10ptp4l0-21swapper/207:53:562
11690994329,4cyclictest25-21ksoftirqd/110:55:331
11690994329,4cyclictest25-21ksoftirqd/107:10:241
11690994314,3cyclictest25-21ksoftirqd/110:20:191
11690994313,3cyclictest25-21ksoftirqd/110:31:341
11690994311,4cyclictest25-21ksoftirqd/108:15:241
1168999435,3cyclictest121rcu_preempt12:19:100
11689994330,4cyclictest9-21ksoftirqd/011:55:280
11689994330,4cyclictest9-21ksoftirqd/011:55:280
11689994330,3cyclictest9-21ksoftirqd/007:25:270
11689994329,4cyclictest9-21ksoftirqd/007:20:120
11689994329,3cyclictest9-21ksoftirqd/011:15:180
11689994326,4cyclictest9-21ksoftirqd/009:15:130
2847191420,5ptp4l0-21swapper/312:35:233
2847191420,5ptp4l0-21swapper/312:20:193
2847191420,5ptp4l0-21swapper/309:01:003
2847191420,5ptp4l0-21swapper/209:55:192
2847191420,5ptp4l0-21swapper/109:20:011
2847191420,4ptp4l7834-21ntp_states10:25:253
2847191420,4ptp4l3351-21df_inode08:00:170
2847191420,4ptp4l3010-21iostat_ios11:25:200
2847191420,4ptp4l26352-21/usr/sbin/munin09:55:250
2847191420,4ptp4l20012-21users10:50:300
2847191420,4ptp4l16109-21apt-get11:55:033
2847191420,4ptp4l16109-21apt-get11:55:033
2847191420,4ptp4l0-21swapper/311:46:203
2847191420,4ptp4l0-21swapper/311:00:223
2847191420,4ptp4l0-21swapper/308:30:113
2847191420,4ptp4l0-21swapper/111:55:201
2847191420,4ptp4l0-21swapper/111:55:201
2847191420,4ptp4l0-21swapper/111:46:191
2847191420,4ptp4l0-21swapper/008:45:250
2847191420,4ptp4l0-21swapper/007:42:030
2847191420,4ptp4l0-21swapper/007:42:030
2847191420,3ptp4l7869-21apt-get08:10:143
2847191420,3ptp4l7285-21iostat_ios10:25:200
2847191420,3ptp4l4203-21ls12:35:252
2847191420,3ptp4l2448-21ls09:05:202
2847191420,3ptp4l18900-21apt-get12:00:113
2847191420,3ptp4l13996-21apt-get11:50:143
2847191420,3ptp4l13658-21apt-get10:40:123
2847191420,3ptp4l13513-21apt-get09:30:140
11690994229,4cyclictest25-21ksoftirqd/111:15:141
11690994229,4cyclictest25-21ksoftirqd/107:40:251
11690994229,4cyclictest25-21ksoftirqd/107:40:251
11690994228,4cyclictest25-21ksoftirqd/108:25:001
11690994228,3cyclictest25-21ksoftirqd/107:20:221
11690994215,3cyclictest25-21ksoftirqd/112:35:181
11690994214,9cyclictest25-21ksoftirqd/108:45:201
11689994229,3cyclictest9-21ksoftirqd/012:10:300
11689994228,4cyclictest9-21ksoftirqd/007:55:220
1168999421,3cyclictest121rcu_preempt10:35:120
2847191410,5ptp4l3620-21ps08:00:202
2847191410,5ptp4l25745-21cut11:05:173
2847191410,5ptp4l0-21swapper/312:30:133
2847191410,5ptp4l0-21swapper/308:50:273
2847191410,5ptp4l0-21swapper/212:21:552
2847191410,4ptp4l7022-21/usr/sbin/munin11:35:173
2847191410,4ptp4l24502-21users09:50:272
2847191410,4ptp4l24362-21/usr/sbin/munin08:45:123
2847191410,4ptp4l2416-21/usr/sbin/munin11:25:283
2847191410,4ptp4l19903-21meminfo07:25:232
2847191410,4ptp4l1802-21ntp_states07:55:233
2847191410,4ptp4l0-21swapper/311:20:253
2847191410,4ptp4l0-21swapper/311:15:223
2847191410,4ptp4l0-21swapper/112:15:521
2847191410,4ptp4l0-21swapper/109:45:311
2847191410,4ptp4l0-21swapper/109:10:201
2847191410,4ptp4l0-21swapper/012:34:290
2847191410,4ptp4l0-21swapper/012:29:430
2847191410,4ptp4l0-21swapper/012:07:130
2847191410,4ptp4l0-21swapper/011:39:370
2847191410,4ptp4l0-21swapper/010:48:270
2847191410,4ptp4l0-21swapper/010:44:440
2847191410,4ptp4l0-21swapper/010:34:580
2847191410,4ptp4l0-21swapper/010:11:120
2847191410,4ptp4l0-21swapper/008:36:200
2847191410,4ptp4l0-21swapper/008:25:090
2847191410,4ptp4l0-21swapper/008:25:080
2847191410,4ptp4l0-21swapper/007:34:480
2847191410,3ptp4l2959-21/usr/sbin/munin11:25:191
2847191410,3ptp4l23534-21apt-get12:10:183
2847191410,3ptp4l20073-21ntp_states07:25:253
2847191410,2ptp4l0-21swapper/308:58:053
11690994126,3cyclictest25-21ksoftirqd/109:30:161
1168999417,6cyclictest9-21ksoftirqd/010:25:000
11689994128,3cyclictest9-21ksoftirqd/009:20:220
11689994126,4cyclictest9-21ksoftirqd/011:40:210
11689994124,6cyclictest9-21ksoftirqd/011:00:000
2847191400,5ptp4l0-21swapper/310:05:143
2847191400,5ptp4l0-21swapper/109:43:171
2847191400,4ptp4l4532-21sed11:30:002
2847191400,4ptp4l21491-21sshd08:36:311
2847191400,4ptp4l0-21swapper/312:05:593
2847191400,4ptp4l0-21swapper/310:45:193
2847191400,4ptp4l0-21swapper/309:57:153
2847191400,4ptp4l0-21swapper/308:40:153
2847191400,4ptp4l0-21swapper/308:38:193
2847191400,4ptp4l0-21swapper/308:20:103
2847191400,4ptp4l0-21swapper/307:45:193
2847191400,4ptp4l0-21swapper/307:35:013
2847191400,4ptp4l0-21swapper/211:50:252
2847191400,4ptp4l0-21swapper/209:37:012
2847191400,4ptp4l0-21swapper/208:45:132
2847191400,4ptp4l0-21swapper/208:35:172
2847191400,4ptp4l0-21swapper/208:25:122
2847191400,4ptp4l0-21swapper/208:25:112
2847191400,4ptp4l0-21swapper/208:06:542
2847191400,4ptp4l0-21swapper/207:11:082
2847191400,4ptp4l0-21swapper/112:05:251
2847191400,4ptp4l0-21swapper/111:40:151
2847191400,4ptp4l0-21swapper/109:55:251
2847191400,4ptp4l0-21swapper/109:25:171
2847191400,4ptp4l0-21swapper/109:25:171
2847191400,4ptp4l0-21swapper/108:50:231
2847191400,4ptp4l0-21swapper/108:41:371
2847191400,4ptp4l0-21swapper/108:05:211
2847191400,4ptp4l0-21swapper/007:47:090
2847191400,3ptp4l17452-21ls10:45:261
2847191400,3ptp4l0-21swapper/309:30:133
2847191400,3ptp4l0-21swapper/210:46:312
2847191400,3ptp4l0-21swapper/107:39:111
2847191400,2ptp4l1293-21snmpd12:27:533
11690994026,4cyclictest25-21ksoftirqd/111:35:231
11690994011,4cyclictest25-21ksoftirqd/111:08:011
1168999401,3cyclictest121rcu_preempt09:36:140
2847191390,4ptp4l8951-21sed09:20:153
2847191390,4ptp4l0-21swapper/307:40:263
2847191390,4ptp4l0-21swapper/307:40:263
2847191390,4ptp4l0-21swapper/307:05:203
2847191390,4ptp4l0-21swapper/111:50:191
2847191390,4ptp4l0-21swapper/111:00:211
2847191390,4ptp4l0-21swapper/110:50:231
2847191390,4ptp4l0-21swapper/109:35:241
2847191390,4ptp4l0-21swapper/108:55:291
2847191390,4ptp4l0-21swapper/107:55:161
2847191390,4ptp4l0-21swapper/107:25:321
2847191390,4ptp4l0-21swapper/008:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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