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2026-06-02 - 15:27
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Tue Jun 02, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950800irq/17-ehci_hcd9341-21ssh12:02:281
89950770irq/17-ehci_hcd945-21usb-storage07:12:460
89150760irq/17-ehci_hcd945-21usb-storage07:28:480
81740rcu_preempt0-21swapper/107:12:481
81730rcu_preempt2192-21snmpd12:03:081
81730rcu_preempt13274-21switchtime09:08:151
146650730irq/31-eth0-tx-378-21kworker/0:210:08:400
81710rcu_preempt18600-21sh10:19:191
81710rcu_preempt0-21swapper/112:37:521
81710rcu_preempt0-21swapper/111:43:051
81710rcu_preempt0-21swapper/109:33:111
81710rcu_preempt0-21swapper/107:13:061
81710rcu_preempt0-21swapper/011:58:170
81710rcu_preempt0-21swapper/009:21:240
81700rcu_preempt31941-21munin-run08:17:510
81700rcu_preempt19202-21sh09:22:471
81700rcu_preempt0-21swapper/112:08:141
81700rcu_preempt0-21swapper/108:23:101
81700rcu_preempt0-21swapper/010:21:400
81700rcu_preempt0-21swapper/010:17:410
81700rcu_preempt0-21swapper/009:34:060
81690rcu_preempt11039-21ssh10:06:000
81690rcu_preempt0-21swapper/112:38:131
81690rcu_preempt0-21swapper/111:55:011
81690rcu_preempt0-21swapper/111:35:131
81690rcu_preempt0-21swapper/110:02:431
81680rcu_preempt10534-21ntp_states08:58:150
81680rcu_preempt0-21swapper/111:31:251
81670rcu_preempt0-21swapper/110:49:201
81670rcu_preempt0-21swapper/108:53:181
81670rcu_preempt0-21swapper/108:53:181
81660rcu_preempt3-21ksoftirqd/012:09:160
81660rcu_preempt0-21swapper/110:59:071
81650rcu_preempt23285-21df12:28:041
81650rcu_preempt22097-21apt-get09:28:011
81650rcu_preempt18150-21/usr/sbin/munin07:23:140
81650rcu_preempt0-21swapper/110:26:151
81650rcu_preempt0-21swapper/107:46:111
81650rcu_preempt0-21swapper/107:18:461
81650rcu_preempt0-21swapper/010:50:290
81640rcu_preempt0-21swapper/108:43:091
81640rcu_preempt0-21swapper/108:21:141
81640rcu_preempt0-21swapper/011:07:510
146650640irq/31-eth0-tx-41ktimersoftd/011:43:540
81630rcu_preempt30668-21cpuspeed_turbos09:43:050
81630rcu_preempt0-21swapper/108:07:391
81630rcu_preempt0-21swapper/107:23:081
81630rcu_preempt0-21swapper/012:02:580
81630rcu_preempt0-21swapper/010:22:520
81620rcu_preempt6219-21ssh10:56:531
81620rcu_preempt30544-21timerandwakeup08:08:161
81620rcu_preempt0-21swapper/110:12:551
81620rcu_preempt0-21swapper/109:45:521
81620rcu_preempt0-21swapper/108:42:181
81620rcu_preempt0-21swapper/012:13:030
81620rcu_preempt0-21swapper/011:53:180
81620rcu_preempt0-21swapper/007:53:180
81610rcu_preempt28702-21gzip09:38:151
81610rcu_preempt15287-21ssh09:14:381
81610rcu_preempt0-21swapper/112:18:101
81610rcu_preempt0-21swapper/110:38:191
81610rcu_preempt0-21swapper/109:26:241
81610rcu_preempt0-21swapper/107:53:091
81610rcu_preempt0-21swapper/011:02:440
81610rcu_preempt0-21swapper/009:38:020
81610rcu_preempt0-21swapper/009:17:060
81600rcu_preempt21942-21ssh11:25:161
81600rcu_preempt13472-21diskmemload12:38:200
81600rcu_preempt13472-21diskmemload10:33:020
81600rcu_preempt13472-21diskmemload09:31:540
81600rcu_preempt0-21swapper/111:15:401
81600rcu_preempt0-21swapper/111:07:461
81600rcu_preempt0-21swapper/110:03:321
81600rcu_preempt0-21swapper/109:49:171
81600rcu_preempt0-21swapper/109:03:181
81600rcu_preempt0-21swapper/010:28:140
81600rcu_preempt0-21swapper/009:08:100
81590rcu_preempt6531-21kernelversion08:43:120
81590rcu_preempt32578-21ssh10:45:071
81590rcu_preempt14136-21ssh11:11:151
81590rcu_preempt13509-21ssh10:09:531
81590rcu_preempt0-21swapper/112:13:161
81590rcu_preempt0-21swapper/111:40:311
81590rcu_preempt0-21swapper/108:51:301
81590rcu_preempt0-21swapper/011:29:240
81590rcu_preempt0-21swapper/010:54:220
81580rcu_preempt8192-21ssh10:00:550
81580rcu_preempt3527-21ssh11:51:260
81580rcu_preempt29635-21ssh11:38:310
81580rcu_preempt28032-21sh12:36:360
81580rcu_preempt0-21swapper/110:29:501
81580rcu_preempt0-21swapper/108:30:591
81580rcu_preempt0-21swapper/107:48:071
81580rcu_preempt0-21swapper/011:08:110
81570rcu_preempt5685-21ssh09:56:110
81570rcu_preempt20208-21ssh11:23:010
81570rcu_preempt19374-21ssh11:20:461
81570rcu_preempt0-21swapper/111:51:181
81570rcu_preempt0-21swapper/110:34:191
81570rcu_preempt0-21swapper/109:55:191
81570rcu_preempt0-21swapper/108:01:001
81570rcu_preempt0-21swapper/107:35:311
81570rcu_preempt0-21swapper/012:30:360
81570rcu_preempt0-21swapper/010:42:300
81560rcu_preempt3235-21ssh09:52:000
81560rcu_preempt31137-21if_can108:13:061
81560rcu_preempt22601-21ssh12:26:450
81560rcu_preempt19994-21ssh12:22:190
81560rcu_preempt13472-21diskmemload11:18:410
81560rcu_preempt0-21swapper/112:23:591
81560rcu_preempt0-21swapper/108:58:431
81550rcu_preempt30860-21ssh10:42:540
81550rcu_preempt26563-21ps11:33:160
81550rcu_preempt0-21swapper/011:14:040
81540rcu_preempt20135-21ntp_states07:28:131
81540rcu_preempt0-21swapper/009:22:530
81540rcu_preempt0-21swapper/007:48:060
15485995449cyclictest945-21usb-storage08:33:131
81530rcu_preempt28111-21users07:58:190
81520rcu_preempt0-21swapper/107:38:411
81520rcu_preempt0-21swapper/008:30:120
81520rcu_preempt0-21swapper/008:08:110
15484995148cyclictest945-21usb-storage08:18:140
81500rcu_preempt5006-21df_inode08:38:080
81500rcu_preempt0-21swapper/008:27:420
81490rcu_preempt9123-21memory08:53:120
81490rcu_preempt9123-21memory08:53:120
81490rcu_preempt4478-21threads08:33:170
81490rcu_preempt15751-21df07:13:050
81490rcu_preempt0-21swapper/008:48:070
15484994946cyclictest945-21usb-storage07:37:510
81480rcu_preempt23929-21ntpq07:43:160
81460rcu_preempt17956-21users07:18:160
81440rcu_preempt29026-21ntp_states08:03:140
81410rcu_preempt22190-21fw_conntrack07:38:080
81390rcu_preempt12291-21cut09:07:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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