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2025-07-02 - 15:33
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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 50 highest latencies:
System rackdslot2.osadl.org (updated Wed Jul 02, 2025 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74522248202,35sleep20-21swapper/207:08:592
74872207173,22sleep00-21swapper/007:09:250
73062207174,22sleep30-21swapper/307:07:113
74562206174,21sleep10-21swapper/107:09:021
1633121560,2sleep216329-21grep11:55:262
1197421560,5sleep0782699cyclictest07:15:340
7827996529,7cyclictest25-21ksoftirqd/110:20:011
252472640,4sleep233-21ksoftirqd/210:00:202
137291620,0ptp4l401ktimersoftd/309:00:143
7827996128,4cyclictest25-21ksoftirqd/110:40:151
242312610,2sleep10-21swapper/111:05:221
7827996022,3cyclictest25-21ksoftirqd/109:50:191
137291590,1ptp4l401ktimersoftd/312:19:123
137291590,1ptp4l401ktimersoftd/312:14:263
7827995825,4cyclictest25-21ksoftirqd/108:20:241
7827995821,3cyclictest25-21ksoftirqd/112:25:231
7827995725,8cyclictest25-21ksoftirqd/111:30:151
7827995722,4cyclictest25-21ksoftirqd/108:31:321
7827995721,7cyclictest25-21ksoftirqd/107:45:151
137291570,1ptp4l401ktimersoftd/309:47:073
7827995626,8cyclictest25-21ksoftirqd/110:25:281
7827995626,7cyclictest25-21ksoftirqd/109:00:131
7827995626,10cyclictest25-21ksoftirqd/110:30:151
7827995624,9cyclictest25-21ksoftirqd/111:50:241
137291560,1ptp4l401ktimersoftd/310:50:283
782799556,9cyclictest25-21ksoftirqd/107:15:191
7827995527,9cyclictest25-21ksoftirqd/107:35:161
7827995525,4cyclictest25-21ksoftirqd/110:05:281
7827995525,4cyclictest25-21ksoftirqd/110:05:271
7827995521,7cyclictest25-21ksoftirqd/111:15:011
7827995521,4cyclictest25-21ksoftirqd/112:18:261
7827995521,4cyclictest25-21ksoftirqd/111:02:201
7827995521,4cyclictest25-21ksoftirqd/108:48:291
7827995520,4cyclictest25-21ksoftirqd/110:55:241
137291550,1ptp4l401ktimersoftd/307:14:043
782799546,7cyclictest25-21ksoftirqd/111:35:281
782799545,6cyclictest25-21ksoftirqd/110:40:001
7827995450,2cyclictest231rcuc/109:20:471
7827995424,8cyclictest25-21ksoftirqd/109:30:211
7827995420,4cyclictest25-21ksoftirqd/111:41:281
137291540,0ptp4l401ktimersoftd/311:12:563
7828995323,4cyclictest33-21ksoftirqd/209:45:012
782799533,9cyclictest25-21ksoftirqd/112:10:171
782799533,8cyclictest25-21ksoftirqd/110:10:211
7827995320,7cyclictest25-21ksoftirqd/109:55:291
7827995319,6cyclictest25-21ksoftirqd/112:24:381
7828995221,9cyclictest33-21ksoftirqd/211:00:222
782799526,9cyclictest25-21ksoftirqd/110:45:131
782799525,9cyclictest25-21ksoftirqd/111:25:251
782799525,8cyclictest25-21ksoftirqd/107:50:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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