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2025-06-28 - 22:39
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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 Sat Jun 28, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt29638-21sh11:41:421
81760rcu_preempt11756-21ssh10:14:241
81760rcu_preempt0-21swapper/109:50:401
81730rcu_preempt17495-21switchtime07:40:391
81720rcu_preempt4083-21munin-run11:55:131
81720rcu_preempt23285-21ssh10:34:531
81710rcu_preempt14751-21sh09:22:231
81710rcu_preempt13958-21rm11:15:211
81710rcu_preempt10755-21ls12:05:421
81700rcu_preempt14944-21ssh09:22:590
81700rcu_preempt12771-1kworker/1:0H09:43:071
81700rcu_preempt0-21swapper/111:30:291
81680rcu_preempt6716-21diskmemload09:56:270
81680rcu_preempt25683-21ssh11:35:321
81680rcu_preempt0-21swapper/109:16:461
81670rcu_preempt21848-21ssh11:28:510
81660rcu_preempt26601-21netstat12:35:361
81660rcu_preempt16618-21ssh10:22:010
81660rcu_preempt12399-21df10:15:301
81660rcu_preempt0-21swapper/112:26:201
81660rcu_preempt0-21swapper/110:23:581
81660rcu_preempt0-21swapper/109:35:191
81650rcu_preempt21395-21sh11:27:271
81650rcu_preempt1329-21munin-run11:50:131
81650rcu_preempt12783-21/usr/sbin/munin07:25:391
81650rcu_preempt0-21swapper/110:48:291
81650rcu_preempt0-21swapper/007:05:520
81640rcu_preempt11987-21awk07:20:351
81640rcu_preempt0-21swapper/110:57:521
81640rcu_preempt0-21swapper/110:41:381
81640rcu_preempt0-21swapper/109:59:491
81640rcu_preempt0-21swapper/109:48:231
81640rcu_preempt0-21swapper/108:35:471
81630rcu_preempt5246-21ssh10:01:521
81630rcu_preempt30290-21munin-run08:35:131
81630rcu_preempt30290-21munin-run08:35:131
81630rcu_preempt18076-21diskstats10:25:331
81630rcu_preempt0-21swapper/112:16:541
81630rcu_preempt0-21swapper/109:33:201
81630rcu_preempt0-21swapper/109:25:391
141050630irq/28-eth0-rx-26714-21kworker/1:007:06:161
81620rcu_preempt7783-21ssh10:06:121
81620rcu_preempt24906-21ssh12:32:331
81620rcu_preempt0-21swapper/111:20:291
81620rcu_preempt0-21swapper/109:05:361
81610rcu_preempt19-21ksoftirqd/111:02:001
81610rcu_preempt0-21swapper/110:53:541
81610rcu_preempt0-21swapper/108:40:291
81610rcu_preempt0-21swapper/107:51:341
81610rcu_preempt0-21swapper/008:36:240
89550600irq/17-ehci_hcd0-21swapper/009:18:290
81600rcu_preempt24175-21latency10:35:361
81600rcu_preempt19491-21ssh12:22:381
81590rcu_preempt9802-21ssh11:06:551
81590rcu_preempt8409-21ssh12:01:521
81590rcu_preempt2531-21ntp_states08:50:371
81590rcu_preempt0-21swapper/111:55:351
81590rcu_preempt0-21swapper/109:13:431
81590rcu_preempt0-21swapper/108:20:361
81590rcu_preempt0-21swapper/108:03:111
81580rcu_preempt13695-21ssh12:11:111
81580rcu_preempt0-21swapper/111:13:571
81580rcu_preempt0-21swapper/109:00:271
81580rcu_preempt0-21swapper/107:55:371
81580rcu_preempt0-21swapper/107:15:391
81580rcu_preempt0-21swapper/012:09:590
81570rcu_preempt6716-21diskmemload09:42:120
81570rcu_preempt0-21swapper/108:55:501
81570rcu_preempt0-21swapper/108:08:371
81570rcu_preempt0-21swapper/107:30:361
81570rcu_preempt0-21swapper/008:10:350
81560rcu_preempt29843-21ssh09:49:400
81560rcu_preempt13841-21ssh12:11:440
81560rcu_preempt0-21swapper/108:13:271
81560rcu_preempt0-21swapper/107:35:311
81560rcu_preempt0-21swapper/012:20:430
81560rcu_preempt0-21swapper/011:57:390
81560rcu_preempt0-21swapper/010:14:400
81560rcu_preempt0-21swapper/009:26:460
81560rcu_preempt0-21swapper/007:42:040
81550rcu_preempt8703-21ssh12:02:550
81550rcu_preempt0-21swapper/011:43:230
81550rcu_preempt0-21swapper/010:28:100
81550rcu_preempt0-21swapper/009:52:430
81550rcu_preempt0-21swapper/008:31:550
81550rcu_preempt0-21swapper/008:31:550
81550rcu_preempt0-21swapper/008:09:530
81540rcu_preempt23801-21ssh11:30:580
81540rcu_preempt16716-21ssh11:20:260
81540rcu_preempt1080-21memory08:45:351
81540rcu_preempt0-21swapper/108:28:371
81540rcu_preempt0-21swapper/011:01:550
81540rcu_preempt0-21swapper/008:51:470
81530rcu_preempt9474-21ssh11:05:560
81530rcu_preempt19860-21ssh09:30:500
81530rcu_preempt0-21swapper/012:15:420
81530rcu_preempt0-21swapper/011:10:350
81530rcu_preempt0-21swapper/009:02:490
81530rcu_preempt0-21swapper/008:59:100
81530rcu_preempt0-21swapper/008:41:310
8876995248cyclictest945-21usb-storage11:47:170
8876995248cyclictest945-21usb-storage09:14:130
8876995248cyclictest945-21usb-storage07:50:350
81520rcu_preempt6716-21diskmemload12:36:110
81520rcu_preempt31495-21ssh10:49:160
81520rcu_preempt0-21swapper/108:16:161
81520rcu_preempt0-21swapper/107:10:351
81520rcu_preempt0-21swapper/012:28:190
81520rcu_preempt0-21swapper/010:31:010
81520rcu_preempt0-21swapper/010:05:520
81520rcu_preempt0-21swapper/008:04:510
8876995149cyclictest41ktimersoftd/010:35:350
8876995148cyclictest945-21usb-storage10:51:550
8876995148cyclictest945-21usb-storage10:15:270
8876995148cyclictest945-21usb-storage10:01:500
8876995148cyclictest945-21usb-storage09:36:490
81510rcu_preempt2856-21ssh11:51:100
81510rcu_preempt28366-21ssh10:43:210
81510rcu_preempt18289-21irqstats07:45:351
81510rcu_preempt15815-21ssh11:17:580
81510rcu_preempt0-21swapper/007:36:160
81510rcu_preempt0-21swapper/007:27:230
81510rcu_preempt0-21swapper/007:21:590
81500rcu_preempt0-21swapper/011:38:130
8876994946cyclictest945-21usb-storage12:34:020
8876994845cyclictest945-21usb-storage09:05:350
81480rcu_preempt0-21swapper/007:31:370
8876994744cyclictest945-21usb-storage10:57:200
81470rcu_preempt0-21swapper/007:45:150
8876994340cyclictest945-21usb-storage07:55:340
8876994239cyclictest813-21scsi_eh_008:15:420
8876994138cyclictest945-21usb-storage08:45:410
8876994036cyclictest945-21usb-storage08:22:160
141350380irq/31-eth0-tx-0-21swapper/008:25:420
89950370irq/17-ehci_hcd0-21swapper/007:15:280
8876993532cyclictest945-21usb-storage07:12:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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