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2026-06-25 - 05:08
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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 Thu Jun 25, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt0-21swapper/119:10:161
81750rcu_preempt0-21swapper/023:07:110
81740rcu_preempt23235-21df_abs00:05:011
81730rcu_preempt4033-21sh00:33:450
81720rcu_preempt9073-21ssh00:42:161
81720rcu_preempt4541-21apt-get00:34:570
81710rcu_preempt29090-21diskmemload23:27:261
81710rcu_preempt0-21swapper/023:45:120
81700rcu_preempt9454-21sh00:43:360
81700rcu_preempt0-21swapper/000:11:540
81690rcu_preempt1990-1kworker/0:2H22:40:340
81690rcu_preempt1990-1kworker/0:2H22:40:340
81690rcu_preempt0-21swapper/123:41:241
81690rcu_preempt0-21swapper/122:42:561
81690rcu_preempt0-21swapper/122:42:561
81690rcu_preempt0-21swapper/121:16:401
81690rcu_preempt0-21swapper/121:16:401
81680rcu_preempt18362-21ssh22:54:590
81680rcu_preempt0-21swapper/119:14:551
81680rcu_preempt0-21swapper/023:25:080
81670rcu_preempt9547-21ssh21:36:351
81670rcu_preempt10101-21munin-run19:59:451
81670rcu_preempt10101-21munin-run19:59:451
81670rcu_preempt0-21swapper/122:46:571
81670rcu_preempt0-21swapper/122:46:571
81670rcu_preempt0-21swapper/122:32:161
81670rcu_preempt0-21swapper/121:52:101
81670rcu_preempt0-21swapper/000:17:360
81670rcu_preempt0-21swapper/000:04:060
81660rcu_preempt29090-21diskmemload23:01:081
81660rcu_preempt19529-21ssh23:57:491
81660rcu_preempt11656-21df_abs20:04:591
81660rcu_preempt10486-21ssh23:40:090
81660rcu_preempt0-21swapper/122:35:301
81660rcu_preempt0-21swapper/121:32:521
81660rcu_preempt0-21swapper/119:54:451
81660rcu_preempt0-21swapper/100:15:491
81660rcu_preempt0-21swapper/023:33:470
81660rcu_preempt0-21swapper/000:06:310
81650rcu_preempt538-21sort22:20:121
81650rcu_preempt4170-21ssh22:27:201
81650rcu_preempt30642-21ssh22:15:221
81650rcu_preempt22236-21ssh22:00:091
81650rcu_preempt14852-21latency_hist23:49:451
81650rcu_preempt1446-21ssh21:21:570
81650rcu_preempt0-21swapper/123:34:321
81650rcu_preempt0-21swapper/123:05:371
81650rcu_preempt0-21swapper/121:40:571
81650rcu_preempt0-21swapper/100:22:211
81650rcu_preempt0-21swapper/020:39:570
81640rcu_preempt5561-21cat19:40:051
81640rcu_preempt5543-21ssh21:29:590
81640rcu_preempt5207-21df_abs22:30:000
81640rcu_preempt5077-21cron21:29:451
81640rcu_preempt0-21swapper/123:52:011
81640rcu_preempt0-21swapper/123:39:241
81640rcu_preempt0-21swapper/121:45:121
81640rcu_preempt0-21swapper/100:12:141
81640rcu_preempt0-21swapper/021:09:540
81640rcu_preempt0-21swapper/019:35:020
81640rcu_preempt0-21swapper/000:19:460
81630rcu_preempt564-21ntp_kernel_err00:25:070
81630rcu_preempt16877-21if_can020:25:031
81630rcu_preempt0-21swapper/120:13:091
81630rcu_preempt0-21swapper/022:54:000
81630rcu_preempt0-21swapper/022:04:560
81630rcu_preempt0-21swapper/020:20:120
81620rcu_preempt6179-21ssh00:36:451
81620rcu_preempt28773-21ssh22:12:551
81620rcu_preempt22460-21ssh00:03:351
81620rcu_preempt1939-21ssh21:23:231
81620rcu_preempt14332-21switchtime21:45:110
81620rcu_preempt0-21swapper/022:10:010
81620rcu_preempt0-21swapper/021:35:070
81610rcu_preempt32750-21diskstats19:20:001
81610rcu_preempt28204-21ssh23:13:071
81610rcu_preempt20617-21ssh21:57:181
81610rcu_preempt19991-21ssh22:56:441
81610rcu_preempt17191-21ssh22:51:541
81610rcu_preempt12356-21ssh21:41:430
81610rcu_preempt0-21swapper/122:08:181
81610rcu_preempt0-21swapper/023:57:030
81610rcu_preempt0-21swapper/023:22:070
81610rcu_preempt0-21swapper/022:25:370
81610rcu_preempt0-21swapper/021:05:070
81600rcu_preempt7590-21munin-run19:49:451
81600rcu_preempt5957-21proc_pri19:40:100
81600rcu_preempt1694-21ssh00:28:361
81600rcu_preempt0-21swapper/121:14:401
81600rcu_preempt0-21swapper/100:33:351
81600rcu_preempt0-21swapper/020:35:030
81600rcu_preempt0-21swapper/019:55:060
81600rcu_preempt0-21swapper/019:55:060
81600rcu_preempt0-21swapper/019:10:040
81590rcu_preempt31206-21ssh23:19:290
81590rcu_preempt22914-21/usr/sbin/munin20:50:061
81590rcu_preempt0-21swapper/123:18:441
81590rcu_preempt0-21swapper/120:45:031
81590rcu_preempt0-21swapper/119:30:091
81590rcu_preempt0-21swapper/022:15:140
81590rcu_preempt0-21swapper/021:15:110
81590rcu_preempt0-21swapper/021:15:110
81580rcu_preempt777-21ssh23:22:191
81580rcu_preempt1994-21ssh22:24:160
81580rcu_preempt19510-21strings21:55:060
81580rcu_preempt0-21swapper/023:53:270
31111995848cyclictest945-21usb-storage20:55:050
81570rcu_preempt3-21ksoftirqd/023:36:490
81570rcu_preempt27481-21ps21:05:081
81570rcu_preempt22828-21ssh22:01:010
81570rcu_preempt18994-21munin-run20:34:450
81570rcu_preempt18453-21ssh21:54:130
81570rcu_preempt0-21swapper/120:36:151
81570rcu_preempt0-21swapper/023:00:400
81570rcu_preempt0-21swapper/022:35:310
81570rcu_preempt0-21swapper/020:59:520
81570rcu_preempt0-21swapper/020:49:390
81570rcu_preempt0-21swapper/019:27:010
81560rcu_preempt2979-21if_can019:30:010
81560rcu_preempt0-21swapper/120:41:191
81560rcu_preempt0-21swapper/120:30:081
81560rcu_preempt0-21swapper/120:02:121
81560rcu_preempt0-21swapper/021:25:110
81550rcu_preempt17131-21memory20:25:050
81550rcu_preempt0-21swapper/120:54:541
81550rcu_preempt0-21swapper/023:12:190
81550rcu_preempt0-21swapper/020:05:120
81550rcu_preempt0-21swapper/019:52:190
81540rcu_preempt31390-21df_abs19:14:580
81540rcu_preempt29090-21diskmemload22:45:270
81540rcu_preempt29090-21diskmemload22:45:270
81540rcu_preempt0-21swapper/121:00:061
81540rcu_preempt0-21swapper/020:18:560
81540rcu_preempt0-21swapper/020:11:570
81540rcu_preempt0-21swapper/020:02:370
81520rcu_preempt2129-21ntp_states19:25:061
81520rcu_preempt0-21swapper/120:20:171
81520rcu_preempt0-21swapper/019:46:260
81510rcu_preempt14754-21ntpq20:15:081
81500rcu_preempt0-21swapper/019:24:260
81440rcu_preempt23160-21df_inode20:50:000
81380rcu_preempt4175-21diskstats19:35:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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