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2025-08-30 - 15:40
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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 Sat Aug 30, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81860rcu_preempt0-21swapper/007:08:170
80050790irq/19-0000:00:26915-21kworker/1:007:08:411
81720rcu_preempt24856-21ssh12:36:050
81720rcu_preempt0-21swapper/009:47:520
81710rcu_preempt10984-21apt-get10:08:070
81710rcu_preempt0-21swapper/111:33:081
81710rcu_preempt0-21swapper/109:13:151
81710rcu_preempt0-21swapper/011:24:280
81700rcu_preempt20229-1kworker/1:1H12:12:241
81700rcu_preempt19353-21/usr/sbin/munin09:23:100
81700rcu_preempt13102-21diskmemload10:24:180
81700rcu_preempt0-21swapper/108:58:181
81700rcu_preempt0-21swapper/108:58:181
81700rcu_preempt0-21swapper/107:12:521
81700rcu_preempt0-21swapper/011:29:190
81700rcu_preempt0-21swapper/010:20:580
81690rcu_preempt5073-21ssh10:57:170
81690rcu_preempt3-21ksoftirqd/011:18:180
81690rcu_preempt0-21swapper/108:23:091
81680rcu_preempt27171-21fw_forwarded_lo11:38:111
81680rcu_preempt23345-21if_eth107:43:110
81680rcu_preempt0-21swapper/112:25:051
81670rcu_preempt0-21swapper/110:46:281
81670rcu_preempt0-21swapper/109:44:511
81660rcu_preempt9917-21sh10:04:540
81660rcu_preempt22455-21ssh10:28:160
81660rcu_preempt0-21swapper/110:36:251
81650rcu_preempt2122-21ssh10:51:350
81650rcu_preempt18548-21ssh09:22:050
81650rcu_preempt11851-21/usr/sbin/munin09:07:521
81650rcu_preempt0-21swapper/112:36:221
81650rcu_preempt0-21swapper/110:51:511
81650rcu_preempt0-21swapper/110:09:321
81650rcu_preempt0-21swapper/108:33:191
81640rcu_preempt2471-21missed_timers08:28:141
81640rcu_preempt22910-21ssh10:28:331
81640rcu_preempt0-21swapper/111:01:211
81630rcu_preempt28112-21switchtime09:38:211
81630rcu_preempt27781-21cron08:02:521
81630rcu_preempt25190-21timerandwakeup07:48:201
81630rcu_preempt21763-21df_abs11:28:081
81630rcu_preempt11640-21ntp_states11:08:190
81630rcu_preempt0-21swapper/112:28:191
81630rcu_preempt0-21swapper/109:28:191
81630rcu_preempt0-21swapper/012:30:100
81630rcu_preempt0-21swapper/011:05:050
81620rcu_preempt5469-21sh11:58:110
81620rcu_preempt26791-21ssh12:38:420
81620rcu_preempt17112-21ssh11:18:191
81620rcu_preempt0-21swapper/110:19:251
81620rcu_preempt0-21swapper/110:03:151
81620rcu_preempt0-21swapper/109:49:181
81620rcu_preempt0-21swapper/012:03:130
81620rcu_preempt0-21swapper/010:40:330
81620rcu_preempt0-21swapper/010:02:390
81620rcu_preempt0-21swapper/009:40:040
81610rcu_preempt7661-21ssh11:01:570
81610rcu_preempt0-21swapper/111:58:461
81610rcu_preempt0-21swapper/110:16:331
81610rcu_preempt0-21swapper/011:39:490
81610rcu_preempt0-21swapper/007:18:300
81600rcu_preempt3-21ksoftirqd/009:32:570
81600rcu_preempt0-21swapper/112:13:221
81600rcu_preempt0-21swapper/108:13:121
81600rcu_preempt0-21swapper/107:23:151
81600rcu_preempt0-21swapper/009:13:180
81590rcu_preempt31018-21ssh11:44:220
81590rcu_preempt25723-21ssh10:34:120
81590rcu_preempt19174-21sshd12:23:400
81590rcu_preempt12752-21ssh11:10:561
81590rcu_preempt0-21swapper/111:06:281
81590rcu_preempt0-21swapper/110:53:111
81590rcu_preempt0-21swapper/110:26:271
81590rcu_preempt0-21swapper/109:23:171
81590rcu_preempt0-21swapper/109:18:341
81590rcu_preempt0-21swapper/107:53:131
81590rcu_preempt0-21swapper/012:13:000
81590rcu_preempt0-21swapper/008:48:080
81590rcu_preempt0-21swapper/008:02:520
15222995947cyclictest945-21usb-storage11:45:281
81580rcu_preempt9098-21ssh12:03:401
81580rcu_preempt4394-21ssh09:54:540
81580rcu_preempt3173-21netstat11:53:151
81580rcu_preempt23980-21ssh09:32:360
81580rcu_preempt11973-21ssh12:10:150
81580rcu_preempt0-21swapper/112:40:281
81580rcu_preempt0-21swapper/111:23:201
81580rcu_preempt0-21swapper/111:14:041
81580rcu_preempt0-21swapper/109:58:181
81580rcu_preempt0-21swapper/109:56:361
81580rcu_preempt0-21swapper/109:11:081
81580rcu_preempt0-21swapper/108:53:141
81580rcu_preempt0-21swapper/107:33:111
81580rcu_preempt0-21swapper/010:13:220
81570rcu_preempt5488-21munin-run08:42:520
81570rcu_preempt4526-21df_abs08:38:081
81570rcu_preempt0-21swapper/111:49:231
81570rcu_preempt0-21swapper/110:39:591
81570rcu_preempt0-21swapper/108:43:111
81570rcu_preempt0-21swapper/107:18:131
81570rcu_preempt0-21swapper/012:20:070
81570rcu_preempt0-21swapper/011:55:490
81570rcu_preempt0-21swapper/010:42:540
81570rcu_preempt0-21swapper/007:13:110
81560rcu_preempt9891-21awk08:58:130
81560rcu_preempt9891-21awk08:58:130
81560rcu_preempt0-21swapper/112:20:071
81560rcu_preempt0-21swapper/109:33:011
81560rcu_preempt0-21swapper/011:37:230
81560rcu_preempt0-21swapper/009:48:060
81560rcu_preempt0-21swapper/007:48:110
81550rcu_preempt0-21swapper/108:06:021
81550rcu_preempt0-21swapper/107:28:111
81550rcu_preempt0-21swapper/011:14:360
81540rcu_preempt1214-21ssh11:49:060
81540rcu_preempt0-21swapper/008:28:150
81530rcu_preempt8681-21irqstats08:53:120
81530rcu_preempt21466-21users07:33:180
81530rcu_preempt0-21swapper/108:08:221
81530rcu_preempt0-21swapper/008:27:300
81520rcu_preempt12464-21irqstats09:08:130
81520rcu_preempt0-21swapper/108:49:391
81520rcu_preempt0-21swapper/009:04:400
81520rcu_preempt0-21swapper/007:28:090
15221995248cyclictest945-21usb-storage08:08:170
15221995147cyclictest945-21usb-storage08:33:120
81500rcu_preempt6120-21irqstats08:43:130
89950490irq/17-ehci_hcd19-21ksoftirqd/107:43:111
81490rcu_preempt31175-21ntp_states08:13:160
81480rcu_preempt28663-21ntpq08:03:140
15221994744cyclictest945-21usb-storage07:23:130
81460rcu_preempt25898-21irqstats07:53:130
15222994541cyclictest945-21usb-storage07:38:101
89950440irq/17-ehci_hcd945-21usb-storage08:21:500
141350430irq/31-eth0-tx-20384-21kworker/1:208:20:351
81320rcu_preempt3-21ksoftirqd/007:42:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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