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2026-05-01 - 21:06
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Fri May 01, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81900rcu_preempt0-21swapper/110:18:521
81760rcu_preempt9965-21ssh11:48:111
81740rcu_preempt9959-21ssh09:59:381
81740rcu_preempt6734-21ssh10:47:451
81740rcu_preempt0-21swapper/107:08:191
81730rcu_preempt28364-21apt-get11:25:201
81730rcu_preempt0-21swapper/011:06:420
81710rcu_preempt31030-21munin-run12:25:101
81700rcu_preempt14270-21cyclictest10:58:541
81700rcu_preempt0-21swapper/107:10:091
81690rcu_preempt15453-21ssh11:57:381
81680rcu_preempt27711-21apt-get09:35:211
81680rcu_preempt25344-21sh12:15:121
81680rcu_preempt0-21swapper/111:50:341
81680rcu_preempt0-21swapper/111:00:291
81670rcu_preempt3548-21sh11:36:370
81670rcu_preempt22681-21idleruntime12:10:261
81670rcu_preempt0-21swapper/112:35:321
81670rcu_preempt0-21swapper/110:36:271
81670rcu_preempt0-21swapper/008:40:360
81660rcu_preempt12273-21latency_hist09:10:091
81660rcu_preempt12166-21sh10:02:141
81660rcu_preempt10362-21munin-run10:55:091
81660rcu_preempt0-21swapper/112:33:151
81660rcu_preempt0-21swapper/011:46:190
81650rcu_preempt3737-21ssh10:42:551
81650rcu_preempt29626-21cpuspeed08:10:221
81650rcu_preempt24767-21fw_forwarded_lo07:50:240
81650rcu_preempt0-21swapper/111:16:071
81650rcu_preempt0-21swapper/111:12:391
81650rcu_preempt0-21swapper/109:42:551
81650rcu_preempt0-21swapper/109:24:281
81650rcu_preempt0-21swapper/107:55:221
81640rcu_preempt30976-21latency_hist10:35:091
81640rcu_preempt0-21swapper/011:21:560
81630rcu_preempt12247-21diskmemload11:20:231
81630rcu_preempt0-21swapper/110:27:421
81630rcu_preempt0-21swapper/010:20:290
81620rcu_preempt1531-21fw_conntrack09:45:260
81620rcu_preempt1204-21ssh09:45:171
81620rcu_preempt0-21swapper/110:13:121
81620rcu_preempt0-21swapper/109:29:321
81610rcu_preempt1587-21munin-run12:30:101
81610rcu_preempt0-21swapper/111:44:371
81610rcu_preempt0-21swapper/110:07:361
81610rcu_preempt0-21swapper/109:50:251
81610rcu_preempt0-21swapper/109:04:531
81610rcu_preempt0-21swapper/108:57:011
81610rcu_preempt0-21swapper/010:42:560
81610rcu_preempt0-21swapper/010:12:580
81600rcu_preempt3279-21ssh11:35:501
81600rcu_preempt32757-21ssh11:31:131
81600rcu_preempt0-21swapper/112:00:311
81600rcu_preempt0-21swapper/109:15:341
81600rcu_preempt0-21swapper/107:35:261
81600rcu_preempt0-21swapper/107:15:281
81590rcu_preempt0-21swapper/112:05:251
81590rcu_preempt0-21swapper/110:20:331
81590rcu_preempt0-21swapper/109:30:431
81590rcu_preempt0-21swapper/108:30:261
81590rcu_preempt0-21swapper/010:51:150
81580rcu_preempt27084-21ssh10:27:250
81580rcu_preempt18926-21ntpq07:25:311
81580rcu_preempt0-21swapper/108:40:301
81580rcu_preempt0-21swapper/108:38:401
81580rcu_preempt0-21swapper/009:58:250
81570rcu_preempt15827-21ssh10:09:170
81570rcu_preempt15229-21ssh09:14:451
81570rcu_preempt11174-21kworker/0:107:05:300
81570rcu_preempt0-21swapper/111:08:141
81570rcu_preempt0-21swapper/108:45:201
81570rcu_preempt0-21swapper/108:15:291
81570rcu_preempt0-21swapper/012:25:570
81570rcu_preempt0-21swapper/011:26:120
81570rcu_preempt0-21swapper/011:03:520
81560rcu_preempt30853-21ssh10:34:470
81560rcu_preempt29615-21ssh09:37:570
81560rcu_preempt23084-21sshd07:42:001
81560rcu_preempt21493-21ssh11:13:000
81560rcu_preempt0-21swapper/108:50:431
81560rcu_preempt0-21swapper/108:25:251
81560rcu_preempt0-21swapper/108:08:361
81560rcu_preempt0-21swapper/107:31:411
81560rcu_preempt0-21swapper/012:23:210
81560rcu_preempt0-21swapper/012:16:250
81560rcu_preempt0-21swapper/011:56:200
81560rcu_preempt0-21swapper/010:46:450
81560rcu_preempt0-21swapper/009:52:510
81560rcu_preempt0-21swapper/009:41:300
81550rcu_preempt24946-21ssh12:14:290
81550rcu_preempt18183-21ssh12:01:390
81550rcu_preempt16923-21ssh09:16:010
81550rcu_preempt0-21swapper/107:50:321
81550rcu_preempt0-21swapper/012:30:190
81550rcu_preempt0-21swapper/011:17:150
81550rcu_preempt0-21swapper/008:15:290
81550rcu_preempt0-21swapper/008:09:210
81540rcu_preempt21202-21ssh09:24:490
81540rcu_preempt13860-21ssh09:11:120
81540rcu_preempt12857-21ssh10:04:100
81540rcu_preempt0-21swapper/107:46:251
81540rcu_preempt0-21swapper/012:08:170
81540rcu_preempt0-21swapper/011:51:450
81540rcu_preempt0-21swapper/011:31:070
81540rcu_preempt0-21swapper/010:35:190
81540rcu_preempt0-21swapper/010:18:530
81540rcu_preempt0-21swapper/009:34:100
81530rcu_preempt6447-21ssh12:37:030
81530rcu_preempt28133-21sshd08:03:001
81530rcu_preempt27244-21df_abs08:00:220
81530rcu_preempt0-21swapper/011:42:450
81530rcu_preempt0-21swapper/009:29:350
81530rcu_preempt0-21swapper/008:48:050
81530rcu_preempt0-21swapper/007:45:300
81530rcu_preempt0-21swapper/007:40:090
81530rcu_preempt0-21swapper/007:26:590
81520rcu_preempt12832-21ssh10:58:330
81520rcu_preempt0-21swapper/009:00:420
81520rcu_preempt0-21swapper/008:35:460
81520rcu_preempt0-21swapper/007:31:410
81520rcu_preempt0-21swapper/007:21:060
81520rcu_preempt0-21swapper/007:17:500
81510rcu_preempt0-21swapper/008:30:130
81510rcu_preempt0-21swapper/007:55:310
81500rcu_preempt19-21ksoftirqd/108:20:221
81500rcu_preempt0-21swapper/008:52:180
81500rcu_preempt0-21swapper/008:26:270
81500rcu_preempt0-21swapper/008:22:170
81490rcu_preempt17083-21df07:20:211
81490rcu_preempt0-21swapper/008:58:180
81460rcu_preempt29815-21fw_conntrack08:10:240
81460rcu_preempt0-21swapper/009:09:080
81410rcu_preempt21282-21memory07:35:260
146650330irq/31-eth0-tx-0-21swapper/007:11:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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