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2026-07-04 - 02:56
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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 Fri Jul 03, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt0-21swapper/012:01:380
81790rcu_preempt15559-21ntpq07:10:471
81770rcu_preempt25945-21fw_conntrack11:30:441
146650750irq/31-eth0-tx-181ktimersoftd/110:21:451
81740rcu_preempt21343-21fw_conntrack12:20:451
81730rcu_preempt24969-21latency_hist07:50:271
81720rcu_preempt20070-21df07:30:411
81720rcu_preempt16005-21latency_hist07:15:270
81710rcu_preempt0-21swapper/112:15:391
81700rcu_preempt13984-21diskmemload12:01:561
81700rcu_preempt0-21swapper/112:28:521
81700rcu_preempt0-21swapper/109:41:051
81700rcu_preempt0-21swapper/109:18:541
81700rcu_preempt0-21swapper/107:40:491
81700rcu_preempt0-21swapper/011:40:480
81700rcu_preempt0-21swapper/010:25:490
81690rcu_preempt0-21swapper/111:52:291
81690rcu_preempt0-21swapper/109:53:051
81690rcu_preempt0-21swapper/109:34:381
81690rcu_preempt0-21swapper/109:23:441
81690rcu_preempt0-21swapper/011:29:100
81690rcu_preempt0-21swapper/010:01:010
81690rcu_preempt0-21swapper/007:45:410
81680rcu_preempt14356-21munin-run11:10:281
81680rcu_preempt0-21swapper/110:51:391
81680rcu_preempt0-21swapper/012:11:140
81670rcu_preempt0-21swapper/110:45:481
81670rcu_preempt0-21swapper/011:59:200
81670rcu_preempt0-21swapper/009:25:060
81660rcu_preempt31943-21sh12:40:031
81660rcu_preempt15630-21ssh10:15:151
81660rcu_preempt0-21swapper/111:59:141
81660rcu_preempt0-21swapper/111:04:361
81660rcu_preempt0-21swapper/110:42:061
81660rcu_preempt0-21swapper/011:10:380
81660rcu_preempt0-21swapper/010:41:540
81660rcu_preempt0-21swapper/010:09:030
81650rcu_preempt28043-21ssh10:35:520
81650rcu_preempt23987-21ssh12:25:390
81650rcu_preempt0-21swapper/112:14:461
81650rcu_preempt0-21swapper/111:15:551
81650rcu_preempt0-21swapper/109:10:441
81650rcu_preempt0-21swapper/107:35:411
81640rcu_preempt22531-21ssh11:24:471
81640rcu_preempt10084-1kworker/1:0H11:39:091
81640rcu_preempt0-21swapper/111:41:331
81640rcu_preempt0-21swapper/110:31:411
81640rcu_preempt0-21swapper/109:46:351
81640rcu_preempt0-21swapper/010:31:060
81640rcu_preempt0-21swapper/008:35:490
81640rcu_preempt0-21swapper/008:30:550
81640rcu_preempt0-21swapper/007:55:520
81630rcu_preempt9706-21ssh10:03:511
81630rcu_preempt23541-21ssh09:30:470
81630rcu_preempt1217-21ssh12:41:291
81630rcu_preempt0-21swapper/112:31:581
81630rcu_preempt0-21swapper/112:31:581
81630rcu_preempt0-21swapper/109:35:321
81630rcu_preempt0-21swapper/010:55:510
81620rcu_preempt13984-21diskmemload10:37:221
81620rcu_preempt0-21swapper/110:55:481
81620rcu_preempt0-21swapper/108:15:421
81620rcu_preempt0-21swapper/011:45:540
81610rcu_preempt31446-21ssh09:45:390
81610rcu_preempt23863-21ssh10:29:171
81610rcu_preempt17068-21ssh10:15:581
81610rcu_preempt0-21swapper/111:25:431
81610rcu_preempt0-21swapper/011:50:550
81600rcu_preempt3261-21ssh11:47:131
81600rcu_preempt20501-21ssh09:25:451
81600rcu_preempt11065-21memory10:05:491
81600rcu_preempt0-21swapper/112:07:291
81600rcu_preempt0-21swapper/108:45:431
81600rcu_preempt0-21swapper/010:15:420
81600rcu_preempt0-21swapper/009:55:330
81600rcu_preempt0-21swapper/009:28:340
81590rcu_preempt6293-21ssh09:56:491
81590rcu_preempt22519-21ssh11:24:450
81590rcu_preempt1642-21df_abs08:25:401
81590rcu_preempt0-21swapper/012:19:140
81580rcu_preempt23423-21smartctl07:40:550
81580rcu_preempt15293-21ssh11:10:521
81580rcu_preempt0-21swapper/109:00:421
81580rcu_preempt0-21swapper/108:40:481
81580rcu_preempt0-21swapper/108:12:551
81580rcu_preempt0-21swapper/011:15:520
81580rcu_preempt0-21swapper/010:45:530
81580rcu_preempt0-21swapper/008:15:550
81580rcu_preempt0-21swapper/008:05:380
146250580irq/28-eth0-rx-13822-21ls12:05:550
81570rcu_preempt28405-21ssh09:40:050
81570rcu_preempt11599-21apt-get09:05:391
81570rcu_preempt0-21swapper/107:25:421
81570rcu_preempt0-21swapper/011:01:290
81570rcu_preempt0-21swapper/010:21:210
81570rcu_preempt0-21swapper/009:15:490
81570rcu_preempt0-21swapper/008:25:410
81560rcu_preempt32738-21df08:20:421
81560rcu_preempt27387-21sshd07:57:381
81560rcu_preempt26972-21ssh11:31:250
81560rcu_preempt17873-21irqstats07:20:471
81560rcu_preempt0-21swapper/108:05:461
81560rcu_preempt0-21swapper/012:36:020
81560rcu_preempt0-21swapper/012:31:340
81560rcu_preempt0-21swapper/012:31:340
81560rcu_preempt0-21swapper/012:22:080
81560rcu_preempt0-21swapper/011:35:500
81560rcu_preempt0-21swapper/010:12:370
81560rcu_preempt0-21swapper/009:45:270
81560rcu_preempt0-21swapper/008:10:520
81550rcu_preempt9316-21diskstats08:55:421
81550rcu_preempt4662-21ssh10:51:410
81550rcu_preempt4020-21apt-get08:35:401
81550rcu_preempt18518-21munin-run07:25:280
81550rcu_preempt0-21swapper/107:15:421
81550rcu_preempt0-21swapper/012:40:460
81550rcu_preempt0-21swapper/009:50:540
81550rcu_preempt0-21swapper/007:30:500
81540rcu_preempt27813-21fw_conntrack08:00:441
81540rcu_preempt0-21swapper/011:09:420
81540rcu_preempt0-21swapper/008:45:520
81540rcu_preempt0-21swapper/008:20:280
81540rcu_preempt0-21swapper/007:50:500
81540rcu_preempt0-21swapper/007:35:450
81530rcu_preempt8249-21if_eth108:50:451
81530rcu_preempt16138-21egrep07:15:410
81530rcu_preempt0-21swapper/008:41:390
81520rcu_preempt13778-21tail09:10:530
81520rcu_preempt0-21swapper/009:01:120
81520rcu_preempt0-21swapper/007:25:450
81510rcu_preempt0-21swapper/009:06:110
81500rcu_preempt0-21swapper/008:01:320
81470rcu_preempt3248-21irqstats08:30:481
81470rcu_preempt0-21swapper/008:54:450
16000994541cyclictest945-21usb-storage09:00:270
146650420irq/31-eth0-tx-25295-21/usr/sbin/munin07:50:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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