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2025-12-02 - 19:06
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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 highest latencies:
System rackcslot3.osadl.org (updated Tue Dec 02, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt29080-21ssh12:18:030
81780rcu_preempt12605-21rm09:52:221
81770rcu_preempt0-21swapper/107:07:531
81750rcu_preempt0-21swapper/110:35:061
81750rcu_preempt0-21swapper/107:59:591
81740rcu_preempt19708-21diskmemload12:25:091
81740rcu_preempt0-21swapper/107:50:081
81730rcu_preempt18566-21munin-run11:59:461
81710rcu_preempt19708-21diskmemload11:57:150
81710rcu_preempt0-21swapper/111:32:561
81700rcu_preempt0-21swapper/111:20:341
151850700irq/30-eth0-tx-171rcuc/110:19:461
81690rcu_preempt0-21swapper/010:47:440
81690rcu_preempt0-21swapper/010:27:230
81690rcu_preempt0-21swapper/010:09:560
81690rcu_preempt0-21swapper/008:55:080
81680rcu_preempt0-21swapper/011:05:540
81680rcu_preempt0-21swapper/010:05:010
81680rcu_preempt0-21swapper/010:03:450
81680rcu_preempt0-21swapper/008:50:000
81670rcu_preempt19708-21diskmemload12:09:451
81670rcu_preempt19-21ksoftirqd/110:10:341
81670rcu_preempt1606-21sh12:26:110
81670rcu_preempt10253-21sh09:49:050
81670rcu_preempt0-21swapper/110:25:131
81660rcu_preempt29199-21memory11:20:050
81660rcu_preempt1927-21munin-run09:34:460
81650rcu_preempt0-21swapper/009:21:300
81640rcu_preempt0-21swapper/009:44:230
81630rcu_preempt13711-21kworker/0:107:05:060
151850630irq/30-eth0-tx-41ktimersoftd/011:13:340
81620rcu_preempt0-21swapper/011:40:140
81610rcu_preempt0-21swapper/112:01:561
81610rcu_preempt0-21swapper/108:41:281
81610rcu_preempt0-21swapper/107:55:241
81610rcu_preempt0-21swapper/007:14:350
81600rcu_preempt1013-21df_abs10:29:590
81600rcu_preempt0-21swapper/111:13:431
81600rcu_preempt0-21swapper/012:36:300
81600rcu_preempt0-21swapper/011:16:190
81600rcu_preempt0-21swapper/009:10:200
81600rcu_preempt0-21swapper/007:30:070
81590rcu_preempt3790-21ssh09:36:341
81590rcu_preempt26512-21ssh10:16:560
81590rcu_preempt21475-21ssh10:08:461
81590rcu_preempt19708-21diskmemload10:40:060
81590rcu_preempt0-21swapper/112:35:121
81590rcu_preempt0-21swapper/112:34:201
81590rcu_preempt0-21swapper/112:11:411
81590rcu_preempt0-21swapper/111:04:401
81590rcu_preempt0-21swapper/110:41:231
81590rcu_preempt0-21swapper/110:34:101
81590rcu_preempt0-21swapper/109:58:201
81590rcu_preempt0-21swapper/109:45:071
81590rcu_preempt0-21swapper/109:21:011
81590rcu_preempt0-21swapper/108:46:041
81590rcu_preempt0-21swapper/108:05:071
81590rcu_preempt0-21swapper/012:03:130
81590rcu_preempt0-21swapper/010:20:110
151950590irq/31-eth0-tx-2717-21apache211:25:541
81580rcu_preempt31041-21ssh12:20:321
81580rcu_preempt0-21swapper/111:50:031
81580rcu_preempt0-21swapper/111:48:301
81580rcu_preempt0-21swapper/111:42:241
81580rcu_preempt0-21swapper/111:16:481
81580rcu_preempt0-21swapper/111:09:001
81580rcu_preempt0-21swapper/110:50:251
81580rcu_preempt0-21swapper/109:14:511
81580rcu_preempt0-21swapper/108:50:051
81580rcu_preempt0-21swapper/108:20:041
81580rcu_preempt0-21swapper/010:58:450
81580rcu_preempt0-21swapper/009:53:050
81580rcu_preempt0-21swapper/009:36:330
81570rcu_preempt4562-21munin-run08:09:460
81570rcu_preempt22123-21ssh09:13:041
81570rcu_preempt0-21swapper/111:35:241
81570rcu_preempt0-21swapper/110:49:411
81570rcu_preempt0-21swapper/110:00:341
81570rcu_preempt0-21swapper/109:41:551
81570rcu_preempt0-21swapper/109:34:311
81570rcu_preempt0-21swapper/109:05:081
81570rcu_preempt0-21swapper/010:37:430
151450570irq/28-eth0-rx-41ktimersoftd/009:28:160
81560rcu_preempt31892-21latency_hist07:49:460
81560rcu_preempt14166-21ssh10:53:280
81560rcu_preempt0-21swapper/112:16:201
81560rcu_preempt0-21swapper/110:59:321
81560rcu_preempt0-21swapper/108:32:561
81560rcu_preempt0-21swapper/108:10:051
81560rcu_preempt0-21swapper/107:45:161
81560rcu_preempt0-21swapper/107:42:511
81560rcu_preempt0-21swapper/107:35:501
81560rcu_preempt0-21swapper/107:33:421
81560rcu_preempt0-21swapper/107:19:001
81560rcu_preempt0-21swapper/107:14:261
81560rcu_preempt0-21swapper/012:24:220
81560rcu_preempt0-21swapper/011:53:090
81560rcu_preempt0-21swapper/011:26:040
81560rcu_preempt0-21swapper/008:45:020
81550rcu_preempt0-21swapper/110:24:101
81550rcu_preempt0-21swapper/107:25:101
81550rcu_preempt0-21swapper/012:30:090
81550rcu_preempt0-21swapper/012:05:110
81550rcu_preempt0-21swapper/011:48:140
81550rcu_preempt0-21swapper/011:35:020
81550rcu_preempt0-21swapper/009:19:320
81540rcu_preempt3591-21ssh11:31:460
81540rcu_preempt0-21swapper/108:16:081
81540rcu_preempt0-21swapper/012:12:590
81540rcu_preempt0-21swapper/011:01:050
81540rcu_preempt0-21swapper/009:57:050
81540rcu_preempt0-21swapper/008:41:170
81530rcu_preempt2235-21snmpd08:59:191
21729995346cyclictest946-21usb-storage08:35:010
81520rcu_preempt0-21swapper/008:23:050
81520rcu_preempt0-21swapper/007:26:210
81510rcu_preempt0-21swapper/009:00:190
21729995148cyclictest946-21usb-storage08:10:080
81500rcu_preempt0-21swapper/007:51:050
21730995047cyclictest946-21usb-storage09:25:021
21729995048cyclictest946-21usb-storage08:30:020
21729995048cyclictest946-21usb-storage08:14:570
21729995046cyclictest946-21usb-storage07:35:030
81490rcu_preempt0-21swapper/007:40:350
21729994947cyclictest946-21usb-storage07:20:000
21729994946cyclictest946-21usb-storage07:15:070
21729994846cyclictest946-21usb-storage07:55:070
81470rcu_preempt8497-21apt-esm-hook08:24:590
81470rcu_preempt8497-21apt-esm-hook08:24:590
81470rcu_preempt19671-21users09:05:120
81470rcu_preempt0-21swapper/008:03:380
81460rcu_preempt24541-21df07:20:001
151450450irq/28-eth0-rx-0-21swapper/108:59:591
21730994240cyclictest946-21usb-storage08:34:591
151950410irq/31-eth0-tx-4550-21kworker/1:008:24:591
151950410irq/31-eth0-tx-4550-21kworker/1:008:24:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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