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2025-03-20 - 03:09
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackcslot3.osadl.org (updated Wed Mar 19, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89850800irq/17-ehci_hcd0-21swapper/107:22:061
81800rcu_preempt1789-21munin-node07:08:190
81750rcu_preempt31300-21munin-run09:26:561
81750rcu_preempt21407-21ssh10:07:371
81710rcu_preempt0-21swapper/107:12:121
81700rcu_preempt0-21swapper/111:19:261
81700rcu_preempt0-21swapper/009:22:230
81690rcu_preempt0-21swapper/110:57:161
81690rcu_preempt0-21swapper/107:41:571
81680rcu_preempt5670-21sh09:38:290
81680rcu_preempt30619-21mailstats11:22:261
81680rcu_preempt13571-21ssh09:53:250
81680rcu_preempt12189-21sh11:50:221
81680rcu_preempt0-21swapper/112:08:431
81680rcu_preempt0-21swapper/111:42:151
81680rcu_preempt0-21swapper/108:27:121
81680rcu_preempt0-21swapper/107:17:171
81670rcu_preempt0-21swapper/111:41:511
81670rcu_preempt0-21swapper/109:53:251
81670rcu_preempt0-21swapper/109:12:251
81670rcu_preempt0-21swapper/107:36:571
81670rcu_preempt0-21swapper/009:19:000
81660rcu_preempt22139-21sh11:08:300
81660rcu_preempt0-21swapper/110:36:401
81660rcu_preempt0-21swapper/109:31:531
81660rcu_preempt0-21swapper/009:36:010
81650rcu_preempt9165-21switchtime08:12:250
81650rcu_preempt6628-21timerwakeupswit12:37:221
81650rcu_preempt25430-21apt-get09:17:101
81650rcu_preempt24451-21diskstats07:07:111
81650rcu_preempt2091-21snmpd10:17:170
81640rcu_preempt8108-21processes09:42:231
81640rcu_preempt28613-21ssh12:18:530
81640rcu_preempt2264-21df_abs11:32:071
81640rcu_preempt10387-21sh09:47:460
81640rcu_preempt0-21swapper/107:52:211
81640rcu_preempt0-21swapper/010:27:560
81640rcu_preempt0-21swapper/009:12:040
81640rcu_preempt0-21swapper/007:37:180
81630rcu_preempt11666-21ssh09:51:351
81630rcu_preempt0-21swapper/111:52:171
81630rcu_preempt0-21swapper/110:13:261
81630rcu_preempt0-21swapper/109:33:591
81630rcu_preempt0-21swapper/108:12:171
81630rcu_preempt0-21swapper/007:12:060
81620rcu_preempt2489-21sshd12:32:070
81620rcu_preempt19936-21ssh12:02:211
81620rcu_preempt0-21swapper/111:12:221
81620rcu_preempt0-21swapper/110:40:091
81620rcu_preempt0-21swapper/108:42:181
81620rcu_preempt0-21swapper/008:38:450
81620rcu_preempt0-21swapper/008:27:180
25334996224cyclictest20792-21apt-get09:02:091
81610rcu_preempt3091-21smartctl11:32:180
81610rcu_preempt16052-21sendmail_mailqu09:57:191
81610rcu_preempt0-21swapper/112:31:401
81610rcu_preempt0-21swapper/109:41:281
81610rcu_preempt0-21swapper/108:32:191
81610rcu_preempt0-21swapper/012:41:170
81610rcu_preempt0-21swapper/012:14:110
81610rcu_preempt0-21swapper/011:55:480
81610rcu_preempt0-21swapper/010:26:270
81610rcu_preempt0-21swapper/009:46:270
81610rcu_preempt0-21swapper/009:02:180
81610rcu_preempt0-21swapper/008:06:290
81600rcu_preempt26541-21latency_hist11:16:570
81600rcu_preempt0-21swapper/112:17:561
81600rcu_preempt0-21swapper/110:04:591
81600rcu_preempt0-21swapper/110:04:591
81600rcu_preempt0-21swapper/108:47:231
81600rcu_preempt0-21swapper/107:42:201
81600rcu_preempt0-21swapper/012:28:290
81600rcu_preempt0-21swapper/011:17:150
81600rcu_preempt0-21swapper/011:04:250
81600rcu_preempt0-21swapper/010:54:480
81600rcu_preempt0-21swapper/010:40:550
81600rcu_preempt0-21swapper/010:13:070
81600rcu_preempt0-21swapper/010:07:070
81600rcu_preempt0-21swapper/007:57:110
81590rcu_preempt31903-21ssh12:24:520
81590rcu_preempt31368-21ssh12:23:211
81590rcu_preempt2457-21ssh12:32:011
81590rcu_preempt23164-21ssh11:11:201
81590rcu_preempt19361-21sshd08:54:070
81590rcu_preempt10362-21ssh10:46:200
81590rcu_preempt0-21swapper/111:57:531
81590rcu_preempt0-21swapper/111:26:571
81590rcu_preempt0-21swapper/011:57:580
81590rcu_preempt0-21swapper/011:30:550
81590rcu_preempt0-21swapper/011:24:110
81590rcu_preempt0-21swapper/010:49:330
151350590irq/31-eth0-tx-171rcuc/110:54:201
81580rcu_preempt22703-21ssh12:09:090
81580rcu_preempt0-21swapper/110:30:471
81580rcu_preempt0-21swapper/110:20:211
81580rcu_preempt0-21swapper/011:48:330
81570rcu_preempt25103-21ssh12:12:251
81570rcu_preempt18901-21df11:02:111
81570rcu_preempt10782-21ssh10:47:091
81570rcu_preempt0-21swapper/108:57:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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