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2026-08-03 - 17:24
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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 Mon Aug 03, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950770irq/17-ehci_hcd945-21usb-storage07:13:110
81770rcu_preempt15840-21fw_conntrack08:38:201
81740rcu_preempt4636-21if_eth007:53:221
81740rcu_preempt0-21swapper/107:15:231
81740rcu_preempt0-21swapper/010:55:480
81720rcu_preempt2498-21ssh10:33:171
81720rcu_preempt0-21swapper/111:18:231
81710rcu_preempt0-21swapper/110:08:301
81710rcu_preempt0-21swapper/012:30:480
81700rcu_preempt13625-21ntp_states09:53:270
81700rcu_preempt11336-21sed11:48:261
81700rcu_preempt0-21swapper/110:05:291
81700rcu_preempt0-21swapper/109:13:281
81700rcu_preempt0-21swapper/012:41:200
81690rcu_preempt7895-21apt-get11:43:171
81690rcu_preempt3387-21ssh09:34:371
81690rcu_preempt29047-21ssh10:22:490
81690rcu_preempt25594-21diskmemload10:01:430
81690rcu_preempt24141-21ssh12:12:510
81690rcu_preempt0-21swapper/010:23:090
81680rcu_preempt9121-21cron08:13:031
81680rcu_preempt30770-21wc12:23:311
81680rcu_preempt11777-21ssh09:49:510
81680rcu_preempt0-21swapper/112:47:381
81680rcu_preempt0-21swapper/110:52:151
81680rcu_preempt0-21swapper/110:27:391
81680rcu_preempt0-21swapper/110:02:311
81670rcu_preempt13590-21cpuspeed_turbos11:53:180
81670rcu_preempt0-21swapper/110:53:391
81670rcu_preempt0-21swapper/012:24:210
81670rcu_preempt0-21swapper/011:21:110
81660rcu_preempt7609-21/usr/sbin/munin10:43:031
81660rcu_preempt13047-21df_abs09:53:171
81660rcu_preempt0-21swapper/112:30:061
81660rcu_preempt0-21swapper/109:21:081
81660rcu_preempt0-21swapper/108:15:541
81650rcu_preempt27547-21python10:18:291
81650rcu_preempt0-21swapper/110:29:441
81640rcu_preempt9868-21sh11:46:160
81640rcu_preempt21425-21ssh12:08:041
81640rcu_preempt10588-21cpuspeed08:18:161
81640rcu_preempt0-21swapper/112:22:301
81640rcu_preempt0-21swapper/109:38:181
81640rcu_preempt0-21swapper/012:47:090
81630rcu_preempt6733-21/usr/sbin/munin08:03:271
81630rcu_preempt5178-21/usr/sbin/munin09:38:240
81630rcu_preempt3-21ksoftirqd/009:21:430
81630rcu_preempt0-21swapper/010:04:450
81630rcu_preempt0-21swapper/008:08:280
81620rcu_preempt3-21ksoftirqd/009:47:230
81620rcu_preempt28689-21apt-get09:23:140
81620rcu_preempt28689-21apt-get09:23:140
81620rcu_preempt2196-21df_inode09:33:180
81620rcu_preempt19857-21sh11:03:440
81620rcu_preempt0-21swapper/112:12:441
81620rcu_preempt0-21swapper/111:27:561
81620rcu_preempt0-21swapper/111:10:311
81620rcu_preempt0-21swapper/107:25:141
81620rcu_preempt0-21swapper/008:43:250
81610rcu_preempt3-21ksoftirqd/011:08:570
81610rcu_preempt25594-21diskmemload10:28:550
81610rcu_preempt21462-21wc08:58:270
81610rcu_preempt0-21swapper/108:23:241
81610rcu_preempt0-21swapper/011:38:260
81610rcu_preempt0-21swapper/011:23:190
81610rcu_preempt0-21swapper/011:13:180
81610rcu_preempt0-21swapper/007:53:250
81600rcu_preempt507-21ssh11:28:261
81600rcu_preempt4177-21ssh10:35:540
81600rcu_preempt0-21swapper/112:43:041
81600rcu_preempt0-21swapper/111:33:271
81600rcu_preempt0-21swapper/110:46:561
81600rcu_preempt0-21swapper/109:43:351
81600rcu_preempt0-21swapper/108:58:271
81600rcu_preempt0-21swapper/011:33:270
81600rcu_preempt0-21swapper/007:48:240
81600rcu_preempt0-21swapper/007:28:240
81590rcu_preempt9278-21cpu08:13:160
81590rcu_preempt30696-21ssh09:26:021
81590rcu_preempt30696-21ssh09:26:021
81590rcu_preempt25594-21diskmemload10:15:550
81590rcu_preempt20487-21cron08:58:030
81590rcu_preempt17493-21netstat08:43:221
81590rcu_preempt16218-21if_can010:58:211
81590rcu_preempt1501-21ssh09:32:171
81590rcu_preempt0-21swapper/112:13:291
81590rcu_preempt0-21swapper/111:59:511
81590rcu_preempt0-21swapper/111:53:531
81590rcu_preempt0-21swapper/111:38:391
81590rcu_preempt0-21swapper/010:59:120
81590rcu_preempt0-21swapper/010:09:190
81590rcu_preempt0-21swapper/007:18:270
81580rcu_preempt661-21ssh09:29:430
81580rcu_preempt3-21ksoftirqd/010:40:220
81580rcu_preempt25753-21ssh11:15:051
81580rcu_preempt20575-21ssh11:06:151
81580rcu_preempt20417-21ssh12:05:020
81580rcu_preempt10660-21ssh11:48:160
81580rcu_preempt0-21swapper/112:33:381
81580rcu_preempt0-21swapper/108:53:161
81580rcu_preempt0-21swapper/012:16:220
81570rcu_preempt4307-21ssh12:34:230
81570rcu_preempt0-21swapper/110:13:181
81570rcu_preempt0-21swapper/109:49:241
81570rcu_preempt0-21swapper/109:03:141
81570rcu_preempt0-21swapper/108:48:391
81570rcu_preempt0-21swapper/107:59:421
81570rcu_preempt0-21swapper/107:44:081
81570rcu_preempt0-21swapper/107:39:571
81570rcu_preempt0-21swapper/010:48:460
81570rcu_preempt0-21swapper/008:33:220
81570rcu_preempt0-21swapper/008:31:100
27622995748cyclictest945-21usb-storage07:50:191
81560rcu_preempt326-21ssh11:28:230
81560rcu_preempt19209-21sshd08:49:580
81560rcu_preempt0-21swapper/109:10:401
81560rcu_preempt0-21swapper/107:29:391
81560rcu_preempt0-21swapper/012:18:100
81560rcu_preempt0-21swapper/012:01:480
81560rcu_preempt0-21swapper/010:46:580
81550rcu_preempt32273-21ntp_states07:33:270
81550rcu_preempt0-21swapper/008:23:270
81550rcu_preempt0-21swapper/008:03:330
81550rcu_preempt0-21swapper/007:23:210
81540rcu_preempt15392-21ls08:33:301
81540rcu_preempt0-21swapper/107:33:381
81530rcu_preempt0-21swapper/009:13:270
81520rcu_preempt0-21swapper/108:30:381
81520rcu_preempt0-21swapper/008:38:300
81510rcu_preempt0-21swapper/009:09:420
81500rcu_preempt28014-21fw_conntrack07:18:191
81500rcu_preempt11610-21users08:18:290
81480rcu_preempt22450-21memory09:03:240
81460rcu_preempt2255-21memory07:43:240
89150450irq/17-ehci_hcd945-21usb-storage07:38:120
81430rcu_preempt6202-21ntp_states07:58:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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