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2025-07-16 - 00:59
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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 Jul 15, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt23631-21cpu12:01:091
81760rcu_preempt21945-21sh11:56:281
81750rcu_preempt23900-21df_abs07:06:111
81740rcu_preempt0-21swapper/112:16:111
81740rcu_preempt0-21swapper/107:21:121
81730rcu_preempt2722-21apache208:31:181
81730rcu_preempt0-21swapper/109:54:151
81720rcu_preempt0-21swapper/110:26:101
81710rcu_preempt11168-21switchtime08:21:221
81700rcu_preempt11734-21diskstats08:26:141
81690rcu_preempt19-21ksoftirqd/111:33:101
81690rcu_preempt0-21swapper/012:19:330
81690rcu_preempt0-21swapper/011:21:260
81680rcu_preempt5478-21ssh12:26:170
81680rcu_preempt4622-21ssh12:25:400
81680rcu_preempt22708-21diskmemload10:56:130
81680rcu_preempt22708-21diskmemload10:46:080
81680rcu_preempt11112-21/usr/sbin/munin09:46:111
81680rcu_preempt0-21swapper/011:29:520
81670rcu_preempt26049-21sh12:05:140
81670rcu_preempt24044-21ssh11:04:370
81670rcu_preempt0-21swapper/109:43:591
81670rcu_preempt0-21swapper/012:13:300
89950650irq/17-ehci_hcd945-21usb-storage10:18:451
81650rcu_preempt27400-21munin-run07:20:550
81650rcu_preempt0-21swapper/010:26:010
81650rcu_preempt0-21swapper/008:36:090
81650rcu_preempt0-21swapper/008:18:280
81640rcu_preempt0-21swapper/011:49:250
81630rcu_preempt30838-21ssh10:20:230
81630rcu_preempt0-21swapper/011:16:100
81630rcu_preempt0-21swapper/008:11:090
81620rcu_preempt0-21swapper/110:58:171
81620rcu_preempt0-21swapper/012:40:150
81620rcu_preempt0-21swapper/011:56:160
81620rcu_preempt0-21swapper/010:11:160
81610rcu_preempt0-21swapper/012:10:110
81610rcu_preempt0-21swapper/009:36:130
81590rcu_preempt0-21swapper/012:31:450
81590rcu_preempt0-21swapper/011:33:500
81590rcu_preempt0-21swapper/011:07:020
81590rcu_preempt0-21swapper/010:38:310
81590rcu_preempt0-21swapper/010:00:560
89950580irq/17-ehci_hcd31141-21sshd07:35:310
81580rcu_preempt28739-21ls09:20:550
81580rcu_preempt0-21swapper/111:46:521
81580rcu_preempt0-21swapper/110:03:011
81580rcu_preempt0-21swapper/009:23:110
81570rcu_preempt32624-21ssh11:19:281
81570rcu_preempt31419-21ssh09:25:131
81570rcu_preempt18087-21ssh11:51:101
81570rcu_preempt17870-21kworker/0:207:06:190
81570rcu_preempt14026-21ssh11:43:081
81570rcu_preempt12186-21ssh10:43:300
81570rcu_preempt0-21swapper/112:33:351
81570rcu_preempt0-21swapper/112:21:241
81570rcu_preempt0-21swapper/112:06:481
81570rcu_preempt0-21swapper/111:14:441
81570rcu_preempt0-21swapper/110:32:281
81570rcu_preempt0-21swapper/110:22:261
81570rcu_preempt0-21swapper/108:01:171
81570rcu_preempt0-21swapper/011:45:540
81570rcu_preempt0-21swapper/009:46:110
24879995748cyclictest945-21usb-storage12:39:331
24879995747cyclictest945-21usb-storage12:29:431
81560rcu_preempt27182-21ssh10:13:011
81560rcu_preempt25238-21ssh10:10:521
81560rcu_preempt18860-21ntpdc11:51:240
81560rcu_preempt18497-21ssh10:54:561
81560rcu_preempt0-21swapper/112:10:591
81560rcu_preempt0-21swapper/111:22:181
81560rcu_preempt0-21swapper/111:09:181
81560rcu_preempt0-21swapper/111:03:531
81560rcu_preempt0-21swapper/110:50:551
81560rcu_preempt0-21swapper/109:37:571
81560rcu_preempt0-21swapper/109:35:501
81560rcu_preempt0-21swapper/108:42:241
81560rcu_preempt0-21swapper/107:36:551
81560rcu_preempt0-21swapper/010:07:050
81560rcu_preempt0-21swapper/009:58:550
81560rcu_preempt0-21swapper/009:31:080
81560rcu_preempt0-21swapper/009:13:330
24879995647cyclictest945-21usb-storage10:40:501
81550rcu_preempt6376-21ssh11:30:241
81550rcu_preempt0-21swapper/110:45:031
81550rcu_preempt0-21swapper/109:57:421
81550rcu_preempt0-21swapper/108:36:271
81550rcu_preempt0-21swapper/108:18:231
81550rcu_preempt0-21swapper/108:12:391
81550rcu_preempt0-21swapper/107:16:451
81550rcu_preempt0-21swapper/011:36:250
81550rcu_preempt0-21swapper/011:14:410
81550rcu_preempt0-21swapper/010:51:140
81550rcu_preempt0-21swapper/009:42:000
81540rcu_preempt5903-21ssh10:31:460
81540rcu_preempt32097-21processes10:21:200
81540rcu_preempt15284-21ssh09:52:050
81540rcu_preempt11040-21ssh11:37:531
81540rcu_preempt0-21swapper/108:52:271
81540rcu_preempt0-21swapper/108:07:511
81540rcu_preempt0-21swapper/107:42:291
81540rcu_preempt0-21swapper/107:30:431
81540rcu_preempt0-21swapper/009:26:380
81540rcu_preempt0-21swapper/008:56:180
81540rcu_preempt0-21swapper/008:42:250
81540rcu_preempt0-21swapper/007:26:270
24879995446cyclictest945-21usb-storage09:03:291
81530rcu_preempt6795-21modprobe08:06:170
81530rcu_preempt18534-21ntp_states08:51:180
81530rcu_preempt0-21swapper/109:26:151
81530rcu_preempt0-21swapper/008:31:070
24879995344cyclictest945-21usb-storage07:46:391
81520rcu_preempt0-21swapper/109:17:391
81520rcu_preempt0-21swapper/107:10:571
81520rcu_preempt0-21swapper/008:49:250
81510rcu_preempt0-21swapper/009:09:410
81510rcu_preempt0-21swapper/009:02:490
81510rcu_preempt0-21swapper/007:56:160
81510rcu_preempt0-21swapper/007:36:410
24879995148cyclictest945-21usb-storage09:10:591
24879995148cyclictest945-21usb-storage08:56:121
24879995148cyclictest945-21usb-storage07:51:501
81500rcu_preempt27794-21fw_conntrack07:21:120
81500rcu_preempt1655-21df_inode07:46:120
24879995048cyclictest945-21usb-storage08:46:231
24879995048cyclictest945-21usb-storage07:56:181
24879995048cyclictest945-21usb-storage07:35:291
81490rcu_preempt0-21swapper/007:11:170
81480rcu_preempt3767-21users07:51:240
81480rcu_preempt0-21swapper/008:02:310
24879994840cyclictest945-21usb-storage09:08:281
2487899368cyclictest0-21swapper/008:26:150
81330rcu_preempt2224-21snmpd08:25:430
24878993318cyclictest838-21ntp_states07:41:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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