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2026-06-30 - 19:31
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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 Tue Jun 30, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt0-21swapper/009:53:470
81760rcu_preempt0-21swapper/107:13:571
81740rcu_preempt11930-21diskmemload10:40:320
81740rcu_preempt10363-21grep10:10:381
81720rcu_preempt19-21ksoftirqd/111:39:581
81720rcu_preempt17791-21ssh12:28:210
81720rcu_preempt12179-21sh12:17:221
81720rcu_preempt0-21swapper/109:15:271
81720rcu_preempt0-21swapper/012:40:370
81710rcu_preempt13436-21ssh09:16:060
81710rcu_preempt0-21swapper/108:50:381
81710rcu_preempt0-21swapper/008:15:350
81700rcu_preempt9434-21ssh12:11:410
81700rcu_preempt8197-21ssh10:07:010
81700rcu_preempt17792-21ssh11:25:540
81700rcu_preempt12267-1kworker/0:1H09:27:190
81700rcu_preempt12194-21df_abs10:15:280
81700rcu_preempt0-21swapper/112:25:381
81700rcu_preempt0-21swapper/110:50:321
81700rcu_preempt0-21swapper/110:28:481
81700rcu_preempt0-21swapper/011:30:140
81700rcu_preempt0-21swapper/011:10:260
81700rcu_preempt0-21swapper/009:55:290
81700rcu_preempt0-21swapper/009:49:240
81690rcu_preempt24337-21sh10:37:480
81690rcu_preempt1954-21/usr/sbin/munin08:35:290
81690rcu_preempt0-21swapper/111:29:001
81690rcu_preempt0-21swapper/109:35:391
81690rcu_preempt0-21swapper/011:05:130
81690rcu_preempt0-21swapper/010:00:360
81680rcu_preempt18557-21ntp_states09:25:351
81680rcu_preempt0-21swapper/112:35:291
81680rcu_preempt0-21swapper/111:05:271
81680rcu_preempt0-21swapper/108:40:321
81670rcu_preempt3446-21ssh12:00:371
81670rcu_preempt14751-21ntp_states11:20:340
81670rcu_preempt13283-21irqstats07:10:310
81670rcu_preempt0-21swapper/112:23:491
81670rcu_preempt0-21swapper/109:50:151
81670rcu_preempt0-21swapper/008:40:270
81660rcu_preempt30665-21ntp_states11:50:360
81660rcu_preempt18481-21ssh12:30:151
81660rcu_preempt0-21swapper/111:17:371
81650rcu_preempt9404-21munin-run09:05:120
81650rcu_preempt19133-21apt-get07:35:240
81650rcu_preempt0-21swapper/112:40:451
81650rcu_preempt0-21swapper/112:10:151
81650rcu_preempt0-21swapper/110:34:211
81650rcu_preempt0-21swapper/110:20:231
146550650irq/30-eth0-tx-0-21swapper/009:20:560
81640rcu_preempt0-21swapper/012:21:010
81630rcu_preempt3-21ksoftirqd/012:06:550
81630rcu_preempt22702-21ssh12:36:510
81630rcu_preempt0-21swapper/107:55:461
81630rcu_preempt0-21swapper/107:53:371
81630rcu_preempt0-21swapper/107:21:371
81630rcu_preempt0-21swapper/011:49:190
81630rcu_preempt0-21swapper/010:30:410
81630rcu_preempt0-21swapper/009:30:230
81620rcu_preempt8874-21ssh11:10:271
81620rcu_preempt29823-21ssh10:48:231
81620rcu_preempt22319-21ssh09:33:241
81620rcu_preempt13779-21ssh11:20:090
81620rcu_preempt0-21swapper/107:32:171
81620rcu_preempt0-21swapper/012:00:410
81610rcu_preempt30514-21ssh09:48:581
81610rcu_preempt0-21swapper/112:06:161
81610rcu_preempt0-21swapper/112:00:061
81610rcu_preempt0-21swapper/108:46:041
81610rcu_preempt0-21swapper/107:15:251
81610rcu_preempt0-21swapper/010:20:380
81610rcu_preempt0-21swapper/007:55:370
81600rcu_preempt8845-21ssh10:09:091
81600rcu_preempt0-21swapper/110:00:331
81600rcu_preempt0-21swapper/109:03:141
81600rcu_preempt0-21swapper/108:23:041
81600rcu_preempt0-21swapper/108:05:321
81590rcu_preempt5485-21ssh11:03:381
81590rcu_preempt27954-21ssh09:44:201
81590rcu_preempt25043-21latency_hist10:40:131
81590rcu_preempt0-21swapper/111:42:321
81590rcu_preempt0-21swapper/110:56:521
81590rcu_preempt0-21swapper/110:16:551
81590rcu_preempt0-21swapper/108:35:311
81590rcu_preempt0-21swapper/108:15:271
81590rcu_preempt0-21swapper/108:03:291
81590rcu_preempt0-21swapper/009:38:100
81590rcu_preempt0-21swapper/009:10:350
81590rcu_preempt0-21swapper/008:10:280
81580rcu_preempt8140-21munin-run09:00:130
81580rcu_preempt30539-21cat11:50:341
81580rcu_preempt29676-21ssh10:47:480
81580rcu_preempt19895-21missed_timers11:30:351
81580rcu_preempt15745-21ssh11:22:561
81580rcu_preempt0-21swapper/012:31:290
81580rcu_preempt0-21swapper/007:30:350
81570rcu_preempt7943-21python08:55:381
81570rcu_preempt2465-21ssh10:57:260
81570rcu_preempt2163-21ssh09:55:351
81570rcu_preempt19906-21ps07:35:361
81570rcu_preempt16327-21wc07:20:380
81570rcu_preempt0-21swapper/107:47:131
81570rcu_preempt0-21swapper/107:30:091
81570rcu_preempt0-21swapper/012:17:250
81570rcu_preempt0-21swapper/011:40:470
81570rcu_preempt0-21swapper/011:38:170
81570rcu_preempt0-21swapper/010:52:480
81560rcu_preempt10726-21ssh10:11:260
81560rcu_preempt0-21swapper/109:20:471
81560rcu_preempt0-21swapper/108:10:291
81560rcu_preempt0-21swapper/107:42:571
81560rcu_preempt0-21swapper/009:42:180
81560rcu_preempt0-21swapper/008:34:000
81560rcu_preempt0-21swapper/008:25:340
81560rcu_preempt0-21swapper/007:50:380
81550rcu_preempt9804-21diskstats09:05:271
81550rcu_preempt1265-21ssh11:56:000
81550rcu_preempt11930-21diskmemload11:08:400
81550rcu_preempt0-21swapper/108:25:301
81550rcu_preempt0-21swapper/007:25:300
81540rcu_preempt28824-21ssh11:47:081
81540rcu_preempt18471-21ssh10:25:540
81540rcu_preempt0-21swapper/110:43:401
81530rcu_preempt900-21entropy08:30:271
81530rcu_preempt0-21swapper/008:46:470
81520rcu_preempt0-21swapper/009:07:560
81520rcu_preempt0-21swapper/008:55:080
81500rcu_preempt30688-21df08:20:270
81500rcu_preempt25764-21fw_conntrack08:00:280
1395099471cyclictest12643-21kworker/0:207:45:430
13950994616cyclictest12643-21kworker/0:207:18:050
13950994339cyclictest945-21usb-storage07:40:390
146250420irq/28-eth0-rx-0-21swapper/109:11:001
81410rcu_preempt0-21swapper/008:08:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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