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2026-04-23 - 00:52
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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 Wed Apr 22, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt0-21swapper/107:11:111
81730rcu_preempt25881-21ssh10:08:081
81720rcu_preempt2138-21snmpd07:15:290
81720rcu_preempt0-21swapper/009:58:240
81710rcu_preempt8974-21ssh11:41:090
81710rcu_preempt12570-21apt-get10:46:031
81710rcu_preempt0-21swapper/112:16:141
81710rcu_preempt0-21swapper/109:39:531
81710rcu_preempt0-21swapper/010:51:080
81700rcu_preempt9485-21sh12:45:431
81700rcu_preempt29762-21df_inode10:16:050
81700rcu_preempt17757-21apt-get10:56:030
81700rcu_preempt0-21swapper/109:31:081
81700rcu_preempt0-21swapper/010:21:380
81690rcu_preempt30385-21apt-get09:16:030
81690rcu_preempt18060-21sh10:56:071
81690rcu_preempt0-21swapper/112:23:471
81690rcu_preempt0-21swapper/111:57:421
81680rcu_preempt18908-21ssh12:01:010
81680rcu_preempt0-21swapper/109:24:271
81680rcu_preempt0-21swapper/108:05:511
81670rcu_preempt8426-21cron11:40:511
81670rcu_preempt2356-21df_inode12:31:061
81670rcu_preempt21367-21munin-run08:40:511
81670rcu_preempt16920-21cat08:21:101
81670rcu_preempt0-21swapper/111:05:111
81670rcu_preempt0-21swapper/110:22:551
81670rcu_preempt0-21swapper/109:54:531
81670rcu_preempt0-21swapper/109:11:041
81660rcu_preempt18419-21nfs4_client08:26:130
81660rcu_preempt0-21swapper/111:27:301
81650rcu_preempt7707-21df_inode10:36:060
81650rcu_preempt29413-21if_can109:11:080
81650rcu_preempt22187-21if_eth110:01:101
81650rcu_preempt0-21swapper/110:15:161
81650rcu_preempt0-21swapper/107:41:101
81650rcu_preempt0-21swapper/010:46:160
81640rcu_preempt8097-21cut07:46:091
81640rcu_preempt23775-21strings11:06:120
81630rcu_preempt3361-21ssh09:25:510
81630rcu_preempt25710-21df_abs11:11:041
81630rcu_preempt15123-21ssh09:46:491
81630rcu_preempt13841-21cpuspeed_turbos11:51:031
81630rcu_preempt0-21swapper/008:57:390
81630rcu_preempt0-21swapper/008:51:060
32242996348cyclictest945-21usb-storage12:13:321
81620rcu_preempt6508-21sh10:32:451
81620rcu_preempt4539-21ssh11:31:201
81620rcu_preempt15351-21sshd08:16:041
81620rcu_preempt0-21swapper/112:05:021
81620rcu_preempt0-21swapper/110:00:101
81620rcu_preempt0-21swapper/108:31:091
81620rcu_preempt0-21swapper/011:55:510
81610rcu_preempt9960-21/usr/sbin/munin10:41:110
81610rcu_preempt7465-21ssh11:37:130
81610rcu_preempt28198-21ssh10:11:590
81610rcu_preempt2138-21snmpd09:00:520
81610rcu_preempt0-21swapper/112:37:231
81610rcu_preempt0-21swapper/112:07:521
81610rcu_preempt0-21swapper/111:46:021
81610rcu_preempt0-21swapper/110:26:171
81610rcu_preempt0-21swapper/109:27:101
81610rcu_preempt0-21swapper/109:20:071
81610rcu_preempt0-21swapper/012:23:350
81610rcu_preempt0-21swapper/010:04:500
81610rcu_preempt0-21swapper/009:46:410
81610rcu_preempt0-21swapper/008:36:110
81600rcu_preempt9815-21ssh11:41:241
81600rcu_preempt458-21ssh11:25:101
81600rcu_preempt32650-21ps12:26:131
81600rcu_preempt32357-21ssh11:23:010
81600rcu_preempt1668-21if_eth107:21:081
81600rcu_preempt0-21swapper/110:41:501
81600rcu_preempt0-21swapper/109:42:521
81600rcu_preempt0-21swapper/108:57:191
81600rcu_preempt0-21swapper/012:44:400
81590rcu_preempt29659-21ssh10:16:041
81590rcu_preempt1635-21ssh12:30:020
81590rcu_preempt0-21swapper/109:01:161
81590rcu_preempt0-21swapper/011:16:010
81580rcu_preempt8824-21ssh10:37:121
81580rcu_preempt7660-21ssh09:33:130
81580rcu_preempt3528-21/usr/sbin/munin09:26:150
81580rcu_preempt29351-21ssh11:16:381
81580rcu_preempt18759-21munin-run12:00:510
81580rcu_preempt0-21swapper/110:52:351
81580rcu_preempt0-21swapper/107:36:081
81580rcu_preempt0-21swapper/107:28:141
81580rcu_preempt0-21swapper/012:07:020
81580rcu_preempt0-21swapper/011:31:050
81580rcu_preempt0-21swapper/011:11:190
81580rcu_preempt0-21swapper/009:42:550
81580rcu_preempt0-21swapper/008:46:120
81580rcu_preempt0-21swapper/007:20:190
81570rcu_preempt28205-21ssh12:17:380
81570rcu_preempt24662-21ssh10:06:100
81570rcu_preempt0-21swapper/108:51:161
81570rcu_preempt0-21swapper/108:00:031
81570rcu_preempt0-21swapper/107:31:061
81570rcu_preempt0-21swapper/107:18:221
81570rcu_preempt0-21swapper/012:36:080
81570rcu_preempt0-21swapper/012:34:520
81570rcu_preempt0-21swapper/011:46:150
81570rcu_preempt0-21swapper/011:27:270
81570rcu_preempt0-21swapper/010:31:160
81570rcu_preempt0-21swapper/009:40:020
81560rcu_preempt7028-21ntpq07:41:110
81560rcu_preempt30206-21diskmemload10:27:460
81560rcu_preempt22191-21ssh11:03:190
81560rcu_preempt0-21swapper/111:07:261
81560rcu_preempt0-21swapper/108:01:121
81560rcu_preempt0-21swapper/009:51:210
81550rcu_preempt8704-21/usr/sbin/munin07:50:500
81550rcu_preempt21844-21if_can108:41:081
81550rcu_preempt0-21swapper/007:23:090
81540rcu_preempt0-21swapper/108:30:511
81540rcu_preempt0-21swapper/012:11:530
81530rcu_preempt23864-21users08:46:181
81530rcu_preempt0-21swapper/008:16:370
81530rcu_preempt0-21swapper/008:04:440
81530rcu_preempt0-21swapper/007:26:100
81520rcu_preempt5535-21irqstats07:36:090
81510rcu_preempt19560-21memory08:31:120
81510rcu_preempt0-21swapper/008:41:120
81510rcu_preempt0-21swapper/008:05:520
81510rcu_preempt0-21swapper/007:59:280
81500rcu_preempt16543-21df08:21:050
81490rcu_preempt0-21swapper/007:30:510
81470rcu_preempt28568-21open_files09:06:140
81460rcu_preempt9110-21fw_forwarded_lo07:51:070
147650460irq/28-eth0-rx-0-21swapper/008:11:150
81450rcu_preempt28599-21proc_pri09:06:141
81440rcu_preempt9106-21fw_conntrack07:51:071
147950350irq/31-eth0-tx-0-21swapper/108:14:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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