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2026-07-06 - 23:32
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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 rackdslot1.osadl.org (updated Mon Jul 06, 2026 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26124997616,56cyclictest10243-21unixbench_singl22:00:282
246602670,5sleep00-21swapper/020:15:150
26124996326,5cyclictest33-21ksoftirqd/221:10:002
26124996024,7cyclictest33-21ksoftirqd/200:31:162
155282600,4sleep00-21swapper/021:05:130
134491600,5ptp4l0-21swapper/220:25:252
134491600,4ptp4l0-21swapper/019:41:300
40982590,5sleep30-21swapper/321:50:143
26124995927,4cyclictest33-21ksoftirqd/223:01:252
26124995924,2cyclictest33-21ksoftirqd/200:20:282
26122995926,4cyclictest9-21ksoftirqd/022:30:010
134491590,4ptp4l0-21swapper/121:52:141
26124995830,3cyclictest33-21ksoftirqd/223:06:552
134491580,3ptp4l0-21swapper/300:10:173
134491580,3ptp4l0-21swapper/222:40:292
26124995725,3cyclictest33-21ksoftirqd/222:57:562
2612399571,9cyclictest7686-21awk00:15:211
26124995625,3cyclictest33-21ksoftirqd/220:44:052
26124995624,7cyclictest33-21ksoftirqd/219:31:542
26124995620,4cyclictest33-21ksoftirqd/200:14:002
26124995619,8cyclictest33-21ksoftirqd/219:39:442
26124995619,3cyclictest33-21ksoftirqd/222:00:002
26124995618,5cyclictest33-21ksoftirqd/219:54:592
26124995616,4cyclictest33-21ksoftirqd/200:05:252
2612399566,11cyclictest0-21swapper/120:00:181
2612399565,7cyclictest22239-21if_enp1s020:10:221
134491560,4ptp4l0-21swapper/019:17:240
26124995518,4cyclictest33-21ksoftirqd/220:09:412
2612399556,7cyclictest26309-21cpuspeed_turbos19:10:121
26124995425,6cyclictest33-21ksoftirqd/220:00:222
26124995425,4cyclictest33-21ksoftirqd/222:35:422
26124995425,4cyclictest33-21ksoftirqd/219:22:162
26124995423,4cyclictest33-21ksoftirqd/223:11:262
26124995423,3cyclictest33-21ksoftirqd/220:56:282
26124995421,4cyclictest33-21ksoftirqd/220:33:412
26124995420,4cyclictest33-21ksoftirqd/223:32:242
26124995419,4cyclictest33-21ksoftirqd/221:36:222
26124995419,4cyclictest33-21ksoftirqd/200:35:192
26124995419,4cyclictest33-21ksoftirqd/200:35:192
26124995419,3cyclictest33-21ksoftirqd/220:36:322
26124995418,4cyclictest33-21ksoftirqd/219:12:562
2612399547,7cyclictest19275-21sed23:30:271
2612399542,6cyclictest22269-21latency_hist22:30:001
134491540,4ptp4l0-21swapper/019:06:200
26124995318,8cyclictest33-21ksoftirqd/223:18:312
26124995318,4cyclictest33-21ksoftirqd/221:50:092
26124995316,5cyclictest33-21ksoftirqd/222:50:192
26124995315,4cyclictest33-21ksoftirqd/219:49:262
2612399536,5cyclictest23944-21mailstats23:40:251
2612399534,7cyclictest241ktimersoftd/122:10:201
2612399534,16cyclictest27491-21latency20:20:211
26122995317,3cyclictest9-21ksoftirqd/020:30:190
134491530,4ptp4l0-21swapper/321:25:043
134491530,4ptp4l0-21swapper/300:06:493
134491530,4ptp4l0-21swapper/020:12:430
134491530,4ptp4l0-21swapper/019:34:520
134491530,2ptp4l1301-21snmpd22:30:403
284372520,5sleep10-21swapper/122:40:261
26124995229,14cyclictest33-21ksoftirqd/221:15:282
26124995222,3cyclictest33-21ksoftirqd/223:21:172
26124995220,6cyclictest33-21ksoftirqd/221:40:232
26124995219,7cyclictest33-21ksoftirqd/219:19:172
26124995219,5cyclictest33-21ksoftirqd/223:40:182
26124995216,6cyclictest33-21ksoftirqd/220:45:102
26124995216,4cyclictest33-21ksoftirqd/200:27:312
2612299523,3cyclictest121rcu_preempt23:50:000
26122995232,8cyclictest9-21ksoftirqd/022:00:190
134491520,4ptp4l0-21swapper/221:14:592
134491520,17ptp4l0-21swapper/322:35:173
134491520,10ptp4l0-21swapper/320:10:083
2612499512,3cyclictest121rcu_preempt20:12:592
2612499512,3cyclictest121rcu_preempt19:26:592
26124995121,4cyclictest33-21ksoftirqd/222:09:432
26124995119,4cyclictest33-21ksoftirqd/219:56:242
2612399515,11cyclictest0-21swapper/120:05:231
2612399514,6cyclictest13714-21ls00:30:131
2612399514,5cyclictest22459-21tr21:20:141
2612399512,6cyclictest25-21ksoftirqd/122:50:151
2612399510,9cyclictest29989-21timerwakeupswit19:15:261
26122995121,3cyclictest9-21ksoftirqd/020:50:250
134491510,4ptp4l0-21swapper/320:37:213
134491510,4ptp4l0-21swapper/300:19:223
134491510,4ptp4l0-21swapper/020:24:480
134491510,3ptp4l0-21swapper/322:20:433
134491510,3ptp4l0-21swapper/222:13:142
134491510,3ptp4l0-21swapper/023:06:460
134491510,3ptp4l0-21swapper/019:59:520
26124995022,6cyclictest33-21ksoftirqd/221:21:032
26124995020,4cyclictest33-21ksoftirqd/221:04:122
26124995018,3cyclictest33-21ksoftirqd/221:47:522
26124995018,3cyclictest33-21ksoftirqd/220:53:332
26124995014,5cyclictest33-21ksoftirqd/223:50:252
26124995010,6cyclictest33-21ksoftirqd/220:25:012
2612399506,7cyclictest16465-21cut21:05:221
2612399505,5cyclictest0-21swapper/121:47:381
2612399502,6cyclictest4238-21phc2sys-jitter19:30:241
26122995012,8cyclictest9-21ksoftirqd/022:55:130
134491500,8ptp4l24088-21df_inode19:05:131
134491500,4ptp4l0-21swapper/322:10:313
134491500,4ptp4l0-21swapper/322:02:573
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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