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2026-03-24 - 20:05
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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 Tue Mar 24, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt24087-21ssh10:29:471
81770rcu_preempt15475-21irqstats11:14:551
81740rcu_preempt3-21ksoftirqd/007:38:580
81730rcu_preempt15445-21fw_conntrack09:09:491
81730rcu_preempt0-21swapper/010:44:590
81720rcu_preempt7087-21sh12:00:050
81710rcu_preempt23395-21diskmemload09:25:330
81710rcu_preempt0-21swapper/112:14:521
81710rcu_preempt0-21swapper/112:14:521
81710rcu_preempt0-21swapper/109:59:521
81710rcu_preempt0-21swapper/011:09:480
81700rcu_preempt0-21swapper/112:27:411
81700rcu_preempt0-21swapper/111:29:591
81690rcu_preempt626-21munin-run11:49:330
81690rcu_preempt0-21swapper/112:00:081
81690rcu_preempt0-21swapper/111:04:571
81690rcu_preempt0-21swapper/109:23:241
81690rcu_preempt0-21swapper/011:23:110
81680rcu_preempt16306-21diskmemload12:38:501
81680rcu_preempt16306-21diskmemload12:08:011
81680rcu_preempt0-21swapper/111:42:201
81680rcu_preempt0-21swapper/111:14:031
81680rcu_preempt0-21swapper/108:09:501
81680rcu_preempt0-21swapper/007:59:020
81670rcu_preempt31069-21latency_hist08:04:331
81670rcu_preempt10001-21idleruntime-cro08:49:331
81670rcu_preempt0-21swapper/111:57:371
81670rcu_preempt0-21swapper/110:46:521
81670rcu_preempt0-21swapper/110:16:421
81670rcu_preempt0-21swapper/009:24:140
81660rcu_preempt6854-21/usr/sbin/munin08:34:510
81660rcu_preempt32118-21sh09:43:231
81660rcu_preempt29293-21cron12:44:341
81660rcu_preempt12163-21ssh10:05:331
81660rcu_preempt0-21swapper/010:00:280
81650rcu_preempt3968-21timerwakeupswit09:49:591
81650rcu_preempt29885-21open_inodes10:39:581
81650rcu_preempt26752-21awk07:44:540
81650rcu_preempt0-21swapper/110:52:211
81650rcu_preempt0-21swapper/107:15:051
81650rcu_preempt0-21swapper/010:22:210
81650rcu_preempt0-21swapper/007:09:480
147950650irq/31-eth0-tx-16939-21kworker/1:007:14:041
81640rcu_preempt0-21swapper/112:22:281
81640rcu_preempt0-21swapper/111:03:031
81640rcu_preempt0-21swapper/110:12:091
81640rcu_preempt0-21swapper/012:20:000
81640rcu_preempt0-21swapper/010:49:510
81640rcu_preempt0-21swapper/010:40:280
81640rcu_preempt0-21swapper/009:57:410
81640rcu_preempt0-21swapper/008:59:340
81630rcu_preempt8012-21ssh09:59:251
81630rcu_preempt4362-21grep10:54:341
81630rcu_preempt2092-21ssh11:50:161
81630rcu_preempt20430-21df_inode11:24:481
81630rcu_preempt0-21swapper/111:45:001
81630rcu_preempt0-21swapper/110:35:571
81630rcu_preempt0-21swapper/011:43:260
81630rcu_preempt0-21swapper/010:14:550
81630rcu_preempt0-21swapper/009:44:510
81630rcu_preempt0-21swapper/008:14:520
81630rcu_preempt0-21swapper/007:59:490
81630rcu_preempt0-21swapper/007:24:440
81620rcu_preempt4266-21sendmail_mailqu11:54:560
81620rcu_preempt20550-21ssh10:22:321
81620rcu_preempt0-21swapper/112:12:551
81620rcu_preempt0-21swapper/009:30:470
81620rcu_preempt0-21swapper/008:04:560
81610rcu_preempt6100-21sed08:30:011
81610rcu_preempt23599-21ssh12:33:041
81610rcu_preempt0-21swapper/109:28:341
81610rcu_preempt0-21swapper/008:19:570
81600rcu_preempt27020-21ssh11:36:411
81600rcu_preempt18770-21ssh09:18:271
81600rcu_preempt0-21swapper/111:21:011
81600rcu_preempt0-21swapper/109:45:151
81600rcu_preempt0-21swapper/108:59:501
81600rcu_preempt0-21swapper/108:34:511
81600rcu_preempt0-21swapper/010:29:580
81600rcu_preempt0-21swapper/009:39:580
81600rcu_preempt0-21swapper/009:04:500
81590rcu_preempt29710-21ssh09:39:001
81590rcu_preempt22685-21ssh10:25:401
81590rcu_preempt22069-21sed07:24:581
81590rcu_preempt2138-21snmpd07:23:541
81590rcu_preempt20711-21ssh12:26:430
81590rcu_preempt0-21swapper/107:54:521
81590rcu_preempt0-21swapper/012:08:260
81590rcu_preempt0-21swapper/011:39:100
81590rcu_preempt0-21swapper/011:27:000
81580rcu_preempt22418-21df_abs07:29:471
81580rcu_preempt0-21swapper/109:30:431
81580rcu_preempt0-21swapper/107:44:561
81580rcu_preempt0-21swapper/012:35:470
81580rcu_preempt0-21swapper/010:38:130
81570rcu_preempt10548-21ssh11:04:570
81570rcu_preempt0-21swapper/108:42:061
81570rcu_preempt0-21swapper/108:14:541
81570rcu_preempt0-21swapper/107:54:111
81570rcu_preempt0-21swapper/012:39:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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