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2025-12-09 - 12:01
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Tue Dec 09, 2025 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
220782205170,23sleep30-21swapper/319:06:093
223632204170,23sleep20-21swapper/219:09:432
220762203170,22sleep10-21swapper/119:06:071
220802200167,22sleep00-21swapper/019:06:110
2848121210,7sleep12268099cyclictest19:20:201
1371918363,11phc2sys0-21swapper/319:10:003
136991690,1ptp4l7320-21cpu19:45:123
22681996628,10cyclictest33-21ksoftirqd/220:59:592
22681996329,4cyclictest33-21ksoftirqd/221:50:002
22681996133,7cyclictest33-21ksoftirqd/223:45:002
136991600,1ptp4l401ktimersoftd/322:46:103
22681995830,4cyclictest33-21ksoftirqd/221:00:292
22681995829,4cyclictest33-21ksoftirqd/220:45:262
22681995825,4cyclictest33-21ksoftirqd/220:00:002
22681995824,5cyclictest33-21ksoftirqd/221:30:162
22681995630,4cyclictest33-21ksoftirqd/200:20:252
2267999561,25cyclictest1794-21iostat22:55:200
22681995529,7cyclictest33-21ksoftirqd/222:40:162
22681995524,7cyclictest33-21ksoftirqd/223:05:252
22681995524,7cyclictest33-21ksoftirqd/223:05:252
22681995523,4cyclictest33-21ksoftirqd/223:25:002
22681995523,4cyclictest33-21ksoftirqd/220:40:142
22681995519,4cyclictest33-21ksoftirqd/220:00:182
2267999550,21cyclictest19886-21iostat_ios22:25:190
72172540,2sleep1241ktimersoftd/123:05:251
72172540,2sleep1241ktimersoftd/123:05:251
22681995426,3cyclictest33-21ksoftirqd/221:40:232
22681995423,4cyclictest33-21ksoftirqd/221:20:162
22681995420,10cyclictest33-21ksoftirqd/223:25:242
2267999540,19cyclictest954-21meminfo21:45:210
22681995338,3cyclictest33-21ksoftirqd/223:40:002
22681995338,3cyclictest33-21ksoftirqd/223:40:002
2238725336,9sleep00-21swapper/019:10:010
22681995233,16cyclictest33-21ksoftirqd/223:50:012
22681995223,4cyclictest33-21ksoftirqd/223:00:002
22681995223,4cyclictest33-21ksoftirqd/222:50:292
22681995219,4cyclictest33-21ksoftirqd/222:10:012
22681995217,4cyclictest33-21ksoftirqd/219:35:102
22681995126,7cyclictest33-21ksoftirqd/200:00:272
22681995122,7cyclictest33-21ksoftirqd/223:15:162
22681995122,3cyclictest33-21ksoftirqd/222:15:172
22681995121,9cyclictest33-21ksoftirqd/220:30:142
22681995121,5cyclictest33-21ksoftirqd/222:46:542
22681995121,4cyclictest33-21ksoftirqd/223:50:212
22681995120,5cyclictest33-21ksoftirqd/222:35:152
22681995120,3cyclictest33-21ksoftirqd/220:10:172
22681995117,7cyclictest33-21ksoftirqd/200:25:202
22681995023,3cyclictest33-21ksoftirqd/219:50:212
22681995021,6cyclictest33-21ksoftirqd/222:10:272
22681995020,9cyclictest33-21ksoftirqd/220:37:062
2268199498,9cyclictest33-21ksoftirqd/219:40:192
22681994921,9cyclictest33-21ksoftirqd/223:55:152
22681994920,4cyclictest33-21ksoftirqd/219:20:162
22681994919,4cyclictest33-21ksoftirqd/221:35:282
22681994919,4cyclictest33-21ksoftirqd/220:15:132
2268299482,43cyclictest27091-21sh21:35:003
2268199485,3cyclictest33-21ksoftirqd/221:10:002
22681994825,7cyclictest33-21ksoftirqd/219:30:242
22681994819,4cyclictest33-21ksoftirqd/220:25:202
2268199474,3cyclictest33-21ksoftirqd/219:45:242
22681994721,6cyclictest33-21ksoftirqd/221:53:282
2268199463,3cyclictest33-21ksoftirqd/222:30:152
2268199463,3cyclictest33-21ksoftirqd/200:10:222
2268199462,3cyclictest33-21ksoftirqd/219:15:012
22681994617,6cyclictest33-21ksoftirqd/221:25:572
2268199461,3cyclictest33-21ksoftirqd/223:00:192
2268199455,2cyclictest33-21ksoftirqd/223:30:262
22681994536,2cyclictest33-21ksoftirqd/219:15:222
2268199453,2cyclictest33-21ksoftirqd/219:25:252
2268199452,2cyclictest33-21ksoftirqd/223:10:012
2268199447,8cyclictest33-21ksoftirqd/222:23:412
2268199447,3cyclictest33-21ksoftirqd/222:00:142
2268199444,2cyclictest33-21ksoftirqd/200:30:212
22681994426,9cyclictest33-21ksoftirqd/200:15:252
2268199442,3cyclictest33-21ksoftirqd/200:05:142
22681994417,9cyclictest33-21ksoftirqd/221:15:182
22681994411,5cyclictest33-21ksoftirqd/222:25:122
59298430,2rtkit-daemon0-21swapper/323:45:083
2268199433,3cyclictest33-21ksoftirqd/221:55:122
22681994333,3cyclictest33-21ksoftirqd/220:20:192
22680994338,3cyclictest25382-21cron23:45:001
136991430,0ptp4l401ktimersoftd/322:08:273
136991430,0ptp4l401ktimersoftd/321:43:373
2268199424,2cyclictest33-21ksoftirqd/221:10:162
136991420,0ptp4l401ktimersoftd/321:58:283
136991420,0ptp4l401ktimersoftd/319:55:533
136991420,0ptp4l401ktimersoftd/319:32:233
2268199412,5cyclictest33-21ksoftirqd/220:55:012
2268199402,5cyclictest33-21ksoftirqd/220:10:012
22682993832,4cyclictest8094-21cron23:10:003
22682993832,4cyclictest8094-21cron23:10:003
22681993832,3cyclictest33-21ksoftirqd/200:35:142
22680993812,22cyclictest21971-21sed22:30:161
136991370,12ptp4l401ktimersoftd/321:15:183
59298360,3rtkit-daemon1285-21snmpd20:15:083
22682993631,3cyclictest7065-21cron19:45:013
22682993631,3cyclictest41-21ksoftirqd/323:24:283
22682993630,4cyclictest41-21ksoftirqd/321:26:223
22679993629,4cyclictest9-21ksoftirqd/021:04:200
22682993529,4cyclictest41-21ksoftirqd/320:22:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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