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2025-04-23 - 17:37
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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 rack1slot1.osadl.org (updated Wed Apr 23, 2025 12:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10152221157,24sleep10-21swapper/107:08:501
314162201162,26sleep30-21swapper/307:05:013
9072200161,26sleep00-21swapper/007:07:250
8572199159,26sleep20-21swapper/207:06:452
252532610,0sleep00-21swapper/008:00:180
58142580,0sleep30-21swapper/312:27:553
113092580,0sleep025095-21diskmemload12:35:130
121799170,16cyclictest0-21swapper/312:08:163
121799160,1cyclictest29714-21telnet09:15:133
121799160,1cyclictest24349-21apt-get08:00:143
121799160,1cyclictest14282-21sed10:20:203
121799150,1cyclictest5315-21df_inode10:10:103
121799150,1cyclictest4533-21latency_hist10:09:593
121799150,1cyclictest23578-21unixbench-2d07:55:213
121799150,0cyclictest26699-21apt-get08:05:123
120199150,1cyclictest0-21swapper/110:10:091
120199150,1cyclictest0-21swapper/107:55:211
119299154,5cyclictest14279-21munin-run07:40:000
121799141,12cyclictest12117-21munin-run09:35:003
121799140,2cyclictest29175-21date11:30:003
121799140,1cyclictest28879-21ssh09:55:493
121799140,1cyclictest25095-21diskmemload11:07:243
121799140,1cyclictest18866-21ssh12:00:003
121799140,1cyclictest14707-21ntpq08:45:163
121799140,1cyclictest11614-21fschecks_count11:50:113
121799140,0cyclictest20629-21apt-get09:00:153
121799140,0cyclictest0-21swapper/310:40:123
120199140,2cyclictest0-21swapper/111:30:001
120199140,13cyclictest0-21swapper/111:31:511
120199140,1cyclictest0-21swapper/110:09:591
120199140,1cyclictest0-21swapper/107:30:081
128752130,0sleep121-21ksoftirqd/110:20:131
121799132,10cyclictest25095-21diskmemload10:57:393
121799132,10cyclictest14653-21ssh09:36:213
121799130,13cyclictest8702-21apt-get11:00:103
121799130,12cyclictest8977-21ssh12:31:053
121799130,1cyclictest9863-21aten_r1power_fr07:30:093
121799130,1cyclictest320-21ssh12:19:583
121799130,1cyclictest25698-21runrttasks09:52:483
121799130,1cyclictest0-21swapper/312:12:253
121799130,0cyclictest25095-21diskmemload11:57:313
121799130,0cyclictest25095-21diskmemload11:31:383
121799130,0cyclictest0-21swapper/311:35:123
121799130,0cyclictest0-21swapper/310:35:283
120199130,12cyclictest0-21swapper/109:45:001
120199130,12cyclictest0-21swapper/109:30:081
120199130,1cyclictest136212sleep111:07:231
120199130,1cyclictest0-21swapper/111:50:111
120199130,1cyclictest0-21swapper/110:35:281
121799121,1cyclictest25095-21diskmemload09:12:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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