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2026-04-11 - 22:20
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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 highest latencies:
System rackcslot3.osadl.org (updated Sat Apr 11, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810rcu_preempt23876-21sh12:40:540
81810rcu_preempt14532-21ps07:10:431
81710rcu_preempt22697-21apt-get10:35:340
81710rcu_preempt12822-21diskmemload10:45:110
81710rcu_preempt0-21swapper/010:15:380
81710rcu_preempt0-21swapper/009:29:000
81700rcu_preempt10576-21ssh12:15:450
81700rcu_preempt0-21swapper/110:50:401
81700rcu_preempt0-21swapper/110:05:371
81690rcu_preempt7751-21sh11:08:240
81690rcu_preempt0-21swapper/112:35:451
81690rcu_preempt0-21swapper/111:32:251
81690rcu_preempt0-21swapper/110:25:221
81690rcu_preempt0-21swapper/107:35:421
81690rcu_preempt0-21swapper/012:14:150
81690rcu_preempt0-21swapper/012:08:220
81680rcu_preempt24011-21apt-get11:40:331
81680rcu_preempt1599migration/009:50:430
81680rcu_preempt0-21swapper/107:20:321
81670rcu_preempt21384-21fw_forwarded_lo09:30:380
81670rcu_preempt15347-21sh11:22:490
81670rcu_preempt0-21swapper/112:10:011
81670rcu_preempt0-21swapper/111:25:121
81670rcu_preempt0-21swapper/010:34:590
81660rcu_preempt28400-21kernelversion10:45:410
81660rcu_preempt0-21swapper/112:14:401
81660rcu_preempt0-21swapper/109:11:231
81640rcu_preempt0-21swapper/109:30:591
81640rcu_preempt0-21swapper/108:24:421
81630rcu_preempt9713-21ssh11:11:131
81630rcu_preempt26214-21munin-run09:40:221
81630rcu_preempt19807-21ssh12:35:121
81630rcu_preempt13339-21ssh11:19:581
81630rcu_preempt0-21swapper/011:43:060
81630rcu_preempt0-21swapper/010:26:350
81620rcu_preempt32284-21kworker/0:207:10:410
81620rcu_preempt27943-21ssh11:46:441
81620rcu_preempt21680-21if_err_wlan007:40:400
81620rcu_preempt0-21swapper/112:00:251
81620rcu_preempt0-21swapper/110:45:391
81620rcu_preempt0-21swapper/110:00:471
81620rcu_preempt0-21swapper/108:15:491
81620rcu_preempt0-21swapper/009:55:290
81620rcu_preempt0-21swapper/009:45:300
81620rcu_preempt0-21swapper/009:40:460
81620rcu_preempt0-21swapper/008:35:340
81610rcu_preempt25217-21ssh10:40:251
81610rcu_preempt24338-21ssh12:42:281
81610rcu_preempt21956-21ssh10:33:151
81610rcu_preempt20029-21ssh09:26:581
81610rcu_preempt15322-21ssh10:20:411
81610rcu_preempt11951-21ssh10:14:341
81610rcu_preempt0-21swapper/112:22:041
81610rcu_preempt0-21swapper/112:18:051
81610rcu_preempt0-21swapper/109:21:241
81610rcu_preempt0-21swapper/107:18:111
81610rcu_preempt0-21swapper/011:32:400
81610rcu_preempt0-21swapper/010:21:060
81600rcu_preempt5641-21ssh11:05:091
81600rcu_preempt24271-21ssh10:37:301
81600rcu_preempt23127-21ssh11:37:551
81600rcu_preempt0-21swapper/111:59:241
81600rcu_preempt0-21swapper/110:16:031
81600rcu_preempt0-21swapper/109:49:101
81600rcu_preempt0-21swapper/109:17:231
81600rcu_preempt0-21swapper/107:55:431
81600rcu_preempt0-21swapper/012:00:320
81590rcu_preempt16169-21ssh11:25:261
81590rcu_preempt0-21swapper/109:50:441
81590rcu_preempt0-21swapper/108:50:421
81590rcu_preempt0-21swapper/107:44:091
81590rcu_preempt0-21swapper/107:30:471
81590rcu_preempt0-21swapper/011:55:140
81590rcu_preempt0-21swapper/010:13:390
81590rcu_preempt0-21swapper/010:06:570
81580rcu_preempt6695-21ntp_states11:05:481
81580rcu_preempt30500-21ssh11:51:291
81580rcu_preempt27906-21ssh09:41:571
81580rcu_preempt2397-21ssh10:57:591
81580rcu_preempt0-21swapper/109:58:361
81580rcu_preempt0-21swapper/108:45:221
81580rcu_preempt0-21swapper/108:25:371
81580rcu_preempt0-21swapper/012:30:350
81580rcu_preempt0-21swapper/012:21:220
81580rcu_preempt0-21swapper/011:17:120
81580rcu_preempt0-21swapper/011:02:550
81580rcu_preempt0-21swapper/010:56:100
81580rcu_preempt0-21swapper/008:15:350
81580rcu_preempt0-21swapper/007:30:380
81570rcu_preempt9915-21ssh11:11:590
81570rcu_preempt31037-21cut10:50:420
81570rcu_preempt29457-21missed_timers08:10:430
81570rcu_preempt21149-21munin-run07:40:210
81570rcu_preempt16894-21ssh12:28:300
81570rcu_preempt1421-21ssh11:59:090
81570rcu_preempt0-21swapper/109:07:471
81570rcu_preempt0-21swapper/108:34:521
81570rcu_preempt0-21swapper/107:25:521
81570rcu_preempt0-21swapper/012:39:450
81570rcu_preempt0-21swapper/011:35:420
81570rcu_preempt0-21swapper/009:21:310
81560rcu_preempt17366-21munin-run07:25:210
81560rcu_preempt0-21swapper/112:25:581
81560rcu_preempt0-21swapper/011:45:400
81560rcu_preempt0-21swapper/011:28:540
81560rcu_preempt0-21swapper/009:38:210
81560rcu_preempt0-21swapper/009:06:210
81560rcu_preempt0-21swapper/009:02:110
81560rcu_preempt0-21swapper/008:24:250
81550rcu_preempt5032-21python08:40:480
81550rcu_preempt23405-21sendmail_mailqu07:45:461
81550rcu_preempt0-21swapper/107:51:161
81550rcu_preempt0-21swapper/007:27:020
81540rcu_preempt9022-21munin-run09:00:210
81540rcu_preempt2138-21snmpd08:14:101
81540rcu_preempt0-21swapper/010:02:170
81540rcu_preempt0-21swapper/009:17:220
81530rcu_preempt0-21swapper/008:05:230
81530rcu_preempt0-21swapper/007:19:130
81520rcu_preempt5812-21if_eth108:45:400
81520rcu_preempt0-21swapper/008:53:570
81510rcu_preempt26329-21/usr/sbin/munin08:00:410
81500rcu_preempt25887-21processes07:55:470
81500rcu_preempt0-21swapper/108:38:271
14851995046cyclictest945-21usb-storage09:03:111
81490rcu_preempt26814-21irqstats08:00:421
81490rcu_preempt1835-21diskstats08:30:350
81480rcu_preempt27848-21df_inode08:05:381
81480rcu_preempt0-21swapper/007:45:400
147650460irq/28-eth0-rx-1563-21apache207:50:440
81420rcu_preempt8165-21fw_conntrack08:55:391
147650390irq/28-eth0-rx-0-21swapper/108:42:421
89450350irq/17-ehci_hcd1161-21python08:25:480
89450320irq/17-ehci_hcd11692-21apt-get09:10:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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