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2026-05-10 - 06:28
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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 rackdslot2.osadl.org (updated Sun May 10, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591226159,22phc2sys0-21swapper/319:06:013
641322230,7sleep01678-21spawn19:08:440
192842205171,22sleep20-21swapper/219:09:152
192512204172,21sleep10-21swapper/119:09:031
1870821470,4sleep018703-21sort19:14:100
327512700,5sleep132736-21multi.sh19:11:541
139291660,1ptp4l401ktimersoftd/320:40:163
91112630,3sleep29065-21sh19:14:362
139291630,1ptp4l401ktimersoftd/321:39:503
139291620,1ptp4l401ktimersoftd/321:13:163
139291610,8ptp4l401ktimersoftd/322:45:563
139291540,1ptp4l401ktimersoftd/321:54:323
139291540,1ptp4l401ktimersoftd/320:52:193
256622520,3sleep20-21swapper/221:05:202
139291500,1ptp4l401ktimersoftd/322:21:083
19703994842,3cyclictest13497-21cron00:05:010
1970499477,8cyclictest25-21ksoftirqd/119:17:321
19705994538,4cyclictest17089-21cron23:05:002
19705994538,4cyclictest17089-21cron23:05:002
139291420,0ptp4l401ktimersoftd/319:45:553
139291420,0ptp4l401ktimersoftd/300:18:383
139291410,0ptp4l401ktimersoftd/323:23:533
139291410,0ptp4l401ktimersoftd/322:58:423
139291410,0ptp4l401ktimersoftd/319:25:533
19704994036,3cyclictest25-21ksoftirqd/121:19:591
19704994034,3cyclictest25-21ksoftirqd/123:04:591
19704994034,3cyclictest25-21ksoftirqd/123:04:591
260112390,5sleep326005-21sort19:11:203
19704993935,2cyclictest25-21ksoftirqd/120:05:001
19706993833,3cyclictest41-21ksoftirqd/320:20:033
19706993833,3cyclictest41-21ksoftirqd/319:17:143
19706993832,4cyclictest26706-21grep00:30:163
19706993831,4cyclictest11109-21cron00:00:013
19704993833,3cyclictest25-21ksoftirqd/123:15:211
19703993812,23cyclictest5942-21cat19:20:000
19706993732,3cyclictest41-21ksoftirqd/323:14:243
19706993732,3cyclictest41-21ksoftirqd/321:15:083
19706993731,4cyclictest41-21ksoftirqd/321:27:593
19706993731,4cyclictest41-21ksoftirqd/319:39:123
19706993731,4cyclictest41-21ksoftirqd/319:39:123
19705993731,4cyclictest33-21ksoftirqd/223:10:312
19705993731,4cyclictest33-21ksoftirqd/222:22:222
19705993731,4cyclictest33-21ksoftirqd/220:53:042
1970499377,3cyclictest25-21ksoftirqd/122:50:211
19704993733,3cyclictest25-21ksoftirqd/122:05:191
19704993733,2cyclictest25-21ksoftirqd/123:55:151
19704993733,2cyclictest25-21ksoftirqd/122:20:201
19704993733,2cyclictest25-21ksoftirqd/119:50:001
19704993732,3cyclictest25-21ksoftirqd/122:00:001
19704993732,3cyclictest25-21ksoftirqd/121:40:261
19704993732,3cyclictest25-21ksoftirqd/120:40:001
19704993732,3cyclictest25-21ksoftirqd/120:40:001
19704993732,3cyclictest25-21ksoftirqd/120:10:011
19704993732,3cyclictest25-21ksoftirqd/119:45:011
19704993732,3cyclictest25-21ksoftirqd/119:30:071
19704993732,3cyclictest25-21ksoftirqd/100:30:241
19704993732,2cyclictest25-21ksoftirqd/120:55:221
19704993731,4cyclictest25-21ksoftirqd/123:37:071
19704993731,4cyclictest25-21ksoftirqd/122:59:311
19704993731,4cyclictest25-21ksoftirqd/122:28:271
19704993731,4cyclictest25-21ksoftirqd/121:49:111
19704993731,4cyclictest25-21ksoftirqd/100:13:561
19704993730,4cyclictest25-21ksoftirqd/121:31:381
19704993730,4cyclictest25-21ksoftirqd/100:22:561
19703993731,4cyclictest9-21ksoftirqd/021:00:440
19706993631,3cyclictest41-21ksoftirqd/323:34:163
19706993631,3cyclictest41-21ksoftirqd/323:25:113
19706993631,3cyclictest41-21ksoftirqd/321:00:313
19706993630,4cyclictest41-21ksoftirqd/323:17:343
19706993630,4cyclictest41-21ksoftirqd/321:07:093
19706993630,4cyclictest41-21ksoftirqd/320:58:103
19706993630,4cyclictest41-21ksoftirqd/320:32:073
19706993630,4cyclictest41-21ksoftirqd/320:06:153
19705993631,3cyclictest33-21ksoftirqd/220:05:112
19705993630,4cyclictest33-21ksoftirqd/223:59:462
19705993630,4cyclictest33-21ksoftirqd/222:53:512
19705993630,4cyclictest33-21ksoftirqd/222:31:082
19705993630,4cyclictest33-21ksoftirqd/221:11:012
19705993630,4cyclictest33-21ksoftirqd/219:41:192
19705993629,4cyclictest33-21ksoftirqd/222:37:462
1970499365,3cyclictest25-21ksoftirqd/123:20:201
1970499365,3cyclictest25-21ksoftirqd/122:50:001
1970499364,2cyclictest25-21ksoftirqd/121:25:171
19704993633,2cyclictest25-21ksoftirqd/122:45:011
19704993632,2cyclictest25-21ksoftirqd/123:50:241
19704993632,2cyclictest25-21ksoftirqd/123:50:241
19704993631,3cyclictest25-21ksoftirqd/121:05:191
19704993631,3cyclictest25-21ksoftirqd/119:25:271
19704993630,4cyclictest25-21ksoftirqd/120:26:271
19704993629,4cyclictest25-21ksoftirqd/100:19:381
1970499361,5cyclictest25-21ksoftirqd/100:25:281
19703993630,4cyclictest9-21ksoftirqd/021:54:040
19703993630,4cyclictest9-21ksoftirqd/019:24:590
19706993530,3cyclictest41-21ksoftirqd/323:46:273
19706993530,3cyclictest41-21ksoftirqd/322:37:513
19706993530,3cyclictest41-21ksoftirqd/322:30:123
19706993530,3cyclictest41-21ksoftirqd/322:15:123
19706993529,4cyclictest41-21ksoftirqd/320:38:493
19706993529,4cyclictest41-21ksoftirqd/320:38:493
19706993529,4cyclictest41-21ksoftirqd/320:11:013
19706993529,4cyclictest41-21ksoftirqd/300:27:113
19705993530,3cyclictest33-21ksoftirqd/223:42:292
19705993529,4cyclictest33-21ksoftirqd/223:46:432
19705993529,4cyclictest33-21ksoftirqd/223:20:032
19705993529,4cyclictest33-21ksoftirqd/222:01:562
19705993529,4cyclictest33-21ksoftirqd/221:35:312
19705993529,4cyclictest33-21ksoftirqd/220:47:502
19705993529,4cyclictest33-21ksoftirqd/219:21:332
19705993529,4cyclictest33-21ksoftirqd/200:32:072
19705993529,4cyclictest33-21ksoftirqd/200:26:212
19705993529,4cyclictest33-21ksoftirqd/200:18:282
19705993529,3cyclictest33-21ksoftirqd/219:15:152
19704993532,2cyclictest25-21ksoftirqd/120:00:011
19704993531,3cyclictest25-21ksoftirqd/122:10:281
19704993531,3cyclictest25-21ksoftirqd/120:35:001
19704993530,3cyclictest25-21ksoftirqd/123:35:011
19704993530,3cyclictest25-21ksoftirqd/123:25:581
19704993530,3cyclictest25-21ksoftirqd/123:15:011
19704993530,3cyclictest25-21ksoftirqd/122:18:561
19704993530,3cyclictest25-21ksoftirqd/122:00:281
19704993530,3cyclictest25-21ksoftirqd/121:25:001
19704993530,3cyclictest25-21ksoftirqd/100:35:231
19704993529,4cyclictest25-21ksoftirqd/120:18:531
19704993529,4cyclictest25-21ksoftirqd/119:35:571
19704993529,4cyclictest25-21ksoftirqd/119:35:571
19704993529,4cyclictest25-21ksoftirqd/119:23:331
19704993529,4cyclictest25-21ksoftirqd/100:09:241
19704993529,3cyclictest25-21ksoftirqd/121:50:121
19703993530,3cyclictest9-21ksoftirqd/020:50:110
19703993529,4cyclictest9-21ksoftirqd/023:00:390
19703993529,4cyclictest9-21ksoftirqd/023:00:390
19703993529,4cyclictest9-21ksoftirqd/022:07:200
19703993529,4cyclictest9-21ksoftirqd/021:35:020
19703993529,4cyclictest9-21ksoftirqd/021:28:240
19703993529,4cyclictest9-21ksoftirqd/020:02:110
19703993527,5cyclictest9-21ksoftirqd/022:55:140
19703993513,19cyclictest30792-21sshd00:37:250
19703993512,20cyclictest8127-21awk23:50:240
19703993512,20cyclictest8127-21awk23:50:240
19703993512,20cyclictest17955-21latency_hist19:45:000
19706993430,3cyclictest41-21ksoftirqd/319:44:253
19706993429,3cyclictest41-21ksoftirqd/322:01:043
19706993428,4cyclictest41-21ksoftirqd/323:09:413
19706993428,4cyclictest41-21ksoftirqd/322:26:483
19706993428,4cyclictest41-21ksoftirqd/322:06:293
19706993428,4cyclictest41-21ksoftirqd/321:41:353
19706993428,4cyclictest41-21ksoftirqd/320:45:553
19706993428,4cyclictest41-21ksoftirqd/320:03:553
19705993429,3cyclictest33-21ksoftirqd/223:37:062
19705993429,3cyclictest33-21ksoftirqd/223:19:062
19705993429,3cyclictest33-21ksoftirqd/219:38:042
19705993429,3cyclictest33-21ksoftirqd/219:38:042
19705993429,3cyclictest33-21ksoftirqd/200:10:432
19705993428,4cyclictest33-21ksoftirqd/221:33:042
19705993428,4cyclictest33-21ksoftirqd/221:17:192
19705993428,4cyclictest33-21ksoftirqd/200:06:082
19704993430,3cyclictest25-21ksoftirqd/123:45:011
19704993430,2cyclictest25-21ksoftirqd/121:00:201
19704993429,3cyclictest25-21ksoftirqd/122:35:251
19704993429,3cyclictest25-21ksoftirqd/122:30:161
19704993429,3cyclictest25-21ksoftirqd/121:15:001
19704993429,3cyclictest25-21ksoftirqd/120:50:001
19704993429,3cyclictest25-21ksoftirqd/120:13:401
19704993429,3cyclictest25-21ksoftirqd/100:00:451
19704993428,4cyclictest25-21ksoftirqd/123:48:301
19704993428,3cyclictest25-21ksoftirqd/120:40:121
19703993429,3cyclictest9-21ksoftirqd/022:35:270
19703993429,3cyclictest9-21ksoftirqd/020:55:460
19703993429,3cyclictest9-21ksoftirqd/000:00:000
19703993428,4cyclictest9-21ksoftirqd/020:30:110
19703993413,19cyclictest9198-21sendmail_mailst22:45:250
19703993411,21cyclictest1055-21date23:35:270
19706993329,2cyclictest41-21ksoftirqd/300:11:313
19706993329,2cyclictest139291ptp4l21:55:163
19706993328,3cyclictest41-21ksoftirqd/319:50:113
19706993328,3cyclictest41-21ksoftirqd/319:31:523
19706993328,3cyclictest41-21ksoftirqd/300:00:123
19706993326,4cyclictest41-21ksoftirqd/321:30:123
19705993328,3cyclictest33-21ksoftirqd/222:25:462
19705993327,4cyclictest33-21ksoftirqd/222:07:062
19705993327,4cyclictest33-21ksoftirqd/220:03:422
19705993327,4cyclictest33-21ksoftirqd/219:28:532
19704993329,2cyclictest25-21ksoftirqd/121:40:001
19704993328,3cyclictest25-21ksoftirqd/120:52:241
19703993329,3cyclictest9-21ksoftirqd/020:43:240
19703993328,3cyclictest9-21ksoftirqd/000:31:250
19703993327,4cyclictest9-21ksoftirqd/022:42:220
19703993327,4cyclictest9-21ksoftirqd/020:48:210
19703993327,4cyclictest9-21ksoftirqd/019:34:080
1970399332,28cyclictest12707-21sort20:40:000
1970399332,28cyclictest12707-21sort20:40:000
19703993312,18cyclictest12188-21idleruntime21:45:180
19703993311,19cyclictest25965-21seq00:28:560
19706993227,3cyclictest41-21ksoftirqd/323:43:433
19706993227,3cyclictest41-21ksoftirqd/323:36:133
19706993227,3cyclictest41-21ksoftirqd/321:22:093
19706993226,4cyclictest41-21ksoftirqd/321:46:453
19706993226,3cyclictest41-21ksoftirqd/320:15:393
19705993227,3cyclictest33-21ksoftirqd/221:52:032
19705993227,3cyclictest33-21ksoftirqd/221:03:212
19705993227,3cyclictest33-21ksoftirqd/220:28:052
19705993227,3cyclictest33-21ksoftirqd/219:47:192
19705993227,3cyclictest33-21ksoftirqd/200:00:552
19705993226,4cyclictest33-21ksoftirqd/221:47:522
19705993226,4cyclictest33-21ksoftirqd/221:21:402
19705993226,4cyclictest33-21ksoftirqd/220:55:132
19705993226,4cyclictest33-21ksoftirqd/220:11:042
1970499322,4cyclictest25-21ksoftirqd/123:05:191
1970399329,20cyclictest31675-21latency22:25:190
1970399329,20cyclictest1308-21runrttasks00:10:250
19703993228,3cyclictest9-21ksoftirqd/023:15:010
19703993227,3cyclictest9-21ksoftirqd/023:44:040
19703993227,3cyclictest9-21ksoftirqd/020:09:170
19703993227,3cyclictest9-21ksoftirqd/000:24:110
19703993226,4cyclictest9-21ksoftirqd/023:29:070
19703993226,4cyclictest9-21ksoftirqd/022:02:460
19703993226,4cyclictest9-21ksoftirqd/021:59:370
19703993226,4cyclictest9-21ksoftirqd/021:24:270
19703993226,4cyclictest9-21ksoftirqd/021:17:170
19703993213,16cyclictest14758-21ptp4l-jitter19:35:230
19703993213,16cyclictest14758-21ptp4l-jitter19:35:230
19706993126,3cyclictest41-21ksoftirqd/322:41:283
19706993126,3cyclictest41-21ksoftirqd/300:21:203
19705993126,3cyclictest33-21ksoftirqd/223:25:572
19705993126,3cyclictest33-21ksoftirqd/222:13:332
19705993126,3cyclictest33-21ksoftirqd/220:40:592
19705993126,3cyclictest33-21ksoftirqd/220:00:002
19705993125,4cyclictest33-21ksoftirqd/219:52:142
19704993127,2cyclictest25-21ksoftirqd/119:50:131
19704993126,3cyclictest25-21ksoftirqd/120:20:241
1970399319,20cyclictest24326-21cat23:20:000
1970399319,19cyclictest28044-21uname21:10:200
19703993126,3cyclictest9-21ksoftirqd/000:15:130
19703993126,3cyclictest9-21ksoftirqd/000:08:070
19703993125,4cyclictest9-21ksoftirqd/019:48:110
139291310,1ptp4l391rcuc/323:00:163
139291310,1ptp4l391rcuc/323:00:153
19706993024,4cyclictest41-21ksoftirqd/300:36:543
19705993025,3cyclictest33-21ksoftirqd/223:06:292
19705993025,3cyclictest33-21ksoftirqd/222:55:302
19705993025,3cyclictest33-21ksoftirqd/221:41:522
19705993025,3cyclictest33-21ksoftirqd/200:38:252
19705993024,4cyclictest33-21ksoftirqd/221:59:432
19705993024,4cyclictest33-21ksoftirqd/200:24:422
1970399308,3cyclictest3138-21latency_hist20:20:000
1970399308,3cyclictest24916-21tr22:10:250
19703993025,3cyclictest9-21ksoftirqd/023:34:570
19703993025,3cyclictest9-21ksoftirqd/023:21:130
19703993025,3cyclictest9-21ksoftirqd/022:52:570
19706992924,3cyclictest41-21ksoftirqd/320:27:293
19706992924,3cyclictest41-21ksoftirqd/319:57:003
19706992924,3cyclictest41-21ksoftirqd/319:23:493
19706992923,4cyclictest41-21ksoftirqd/322:13:483
19705992924,3cyclictest33-21ksoftirqd/223:31:382
19705992924,3cyclictest33-21ksoftirqd/221:27:242
19705992924,3cyclictest33-21ksoftirqd/220:35:512
19705992924,3cyclictest33-21ksoftirqd/220:35:512
19705992924,3cyclictest33-21ksoftirqd/220:19:462
19705992923,4cyclictest33-21ksoftirqd/223:50:592
19705992923,4cyclictest33-21ksoftirqd/223:50:592
1970399299,18cyclictest26042-21ptp4l21:05:240
1970399293,4cyclictest6469-21latency_hist21:35:000
19703992924,3cyclictest9-21ksoftirqd/022:32:300
19703992924,3cyclictest9-21ksoftirqd/019:28:090
19703992923,4cyclictest9-21ksoftirqd/019:58:460
19706992822,4cyclictest41-21ksoftirqd/323:54:543
19706992822,4cyclictest41-21ksoftirqd/323:54:543
19706992822,4cyclictest41-21ksoftirqd/300:08:133
1970399287,3cyclictest7754-21latency_hist20:30:000
1970399286,3cyclictest3291-21cat20:20:130
1970399286,3cyclictest225882chrt19:53:410
1970399286,3cyclictest112402chrt21:42:560
1970399282,5cyclictest337-21dbus-daemon23:05:240
19703992823,3cyclictest9-21ksoftirqd/023:48:370
19703992823,3cyclictest9-21ksoftirqd/022:23:240
19706992722,3cyclictest41-21ksoftirqd/322:50:283
19705992722,3cyclictest33-21ksoftirqd/222:47:422
19705992722,3cyclictest33-21ksoftirqd/219:32:002
1970399274,4cyclictest0-21swapper/022:15:140
19705992621,3cyclictest33-21ksoftirqd/220:30:192
1970399264,3cyclictest31140-21df_inode20:10:140
19705992520,3cyclictest33-21ksoftirqd/222:15:322
19705992419,3cyclictest33-21ksoftirqd/222:40:212
19705991914,3cyclictest3818-21iostat20:20:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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