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2025-11-18 - 07:37
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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 all highest latencies:
System rackcslot3.osadl.org (updated Tue Nov 18, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81720rcu_preempt375-21munin-run19:44:550
81710rcu_preempt3913-21apt-get22:35:100
81700rcu_preempt0-21swapper/000:35:120
81690rcu_preempt0-21swapper/122:55:161
81690rcu_preempt0-21swapper/100:30:201
81690rcu_preempt0-21swapper/000:14:550
81680rcu_preempt0-21swapper/100:05:161
81680rcu_preempt0-21swapper/022:04:130
81670rcu_preempt2235-21snmpd22:55:140
81670rcu_preempt21971-21diskmemload00:00:281
81670rcu_preempt15650-21cron20:44:551
81670rcu_preempt0-21swapper/123:47:151
81670rcu_preempt0-21swapper/123:35:161
81670rcu_preempt0-21swapper/122:36:311
81660rcu_preempt3318-21sh21:34:231
81660rcu_preempt3318-21sh21:34:231
81650rcu_preempt31352-21ntpq21:25:211
81650rcu_preempt26287-21tail19:15:201
81650rcu_preempt25322-21munin-run22:14:561
81650rcu_preempt0-21swapper/123:40:181
81650rcu_preempt0-21swapper/122:25:461
81640rcu_preempt22918-21ssh23:10:080
81640rcu_preempt0-21swapper/121:34:561
81640rcu_preempt0-21swapper/121:15:051
81640rcu_preempt0-21swapper/100:23:511
81640rcu_preempt0-21swapper/023:25:000
81630rcu_preempt2418-21ssh21:31:290
81630rcu_preempt2418-21ssh21:31:290
81630rcu_preempt0-21swapper/120:14:311
81630rcu_preempt0-21swapper/119:20:051
81630rcu_preempt0-21swapper/100:35:121
81630rcu_preempt0-21swapper/023:40:220
81620rcu_preempt28767-21if_wlan023:20:150
81620rcu_preempt23104-21df_inode19:05:100
81620rcu_preempt20247-21cpu23:05:121
81620rcu_preempt0-21swapper/123:31:221
81620rcu_preempt0-21swapper/122:44:291
81620rcu_preempt0-21swapper/100:10:281
81620rcu_preempt0-21swapper/021:41:580
81620rcu_preempt0-21swapper/019:24:550
81610rcu_preempt3-21ksoftirqd/023:46:410
81610rcu_preempt14385-21rm21:54:380
81610rcu_preempt0-21swapper/123:27:071
81610rcu_preempt0-21swapper/122:05:371
81610rcu_preempt0-21swapper/121:20:371
81610rcu_preempt0-21swapper/121:10:211
81610rcu_preempt0-21swapper/120:45:181
81610rcu_preempt0-21swapper/100:25:041
81610rcu_preempt0-21swapper/022:22:530
81600rcu_preempt27918-21cron22:19:551
81600rcu_preempt0-21swapper/119:07:421
81590rcu_preempt9785-21ssh22:45:180
81590rcu_preempt24741-21ssh23:12:581
81590rcu_preempt21971-21diskmemload23:59:561
81590rcu_preempt21971-21diskmemload21:38:400
81590rcu_preempt21376-21ssh23:05:300
81590rcu_preempt19382-21ssh22:03:371
81590rcu_preempt16941-21ssh21:59:131
81590rcu_preempt12034-21ssh22:50:061
81590rcu_preempt0-21swapper/123:16:071
81590rcu_preempt0-21swapper/122:45:171
81590rcu_preempt0-21swapper/122:34:241
81590rcu_preempt0-21swapper/120:55:111
81590rcu_preempt0-21swapper/023:50:020
81590rcu_preempt0-21swapper/023:17:080
81580rcu_preempt6501-21/usr/sbin/munin22:40:120
81580rcu_preempt21902-21ssh22:07:440
81580rcu_preempt20546-21switchtime21:00:221
81580rcu_preempt18779-21ssh23:01:051
81580rcu_preempt1692-21munin-run19:49:550
81580rcu_preempt0-21swapper/121:40:571
81580rcu_preempt0-21swapper/120:50:211
81580rcu_preempt0-21swapper/120:20:151
81580rcu_preempt0-21swapper/100:15:171
81580rcu_preempt0-21swapper/021:12:490
81580rcu_preempt0-21swapper/000:25:230
81570rcu_preempt638-21cron21:29:550
81570rcu_preempt29615-21ssh23:20:551
81570rcu_preempt2089-21ssh00:31:040
81570rcu_preempt0-21swapper/120:00:171
81570rcu_preempt0-21swapper/119:50:201
81570rcu_preempt0-21swapper/119:45:181
81570rcu_preempt0-21swapper/119:33:321
81570rcu_preempt0-21swapper/022:33:380
81570rcu_preempt0-21swapper/021:56:110
81570rcu_preempt0-21swapper/000:16:500
81560rcu_preempt3-21ksoftirqd/000:09:220
81560rcu_preempt29538-21ssh00:22:020
81560rcu_preempt21971-21diskmemload22:50:090
81560rcu_preempt10336-21ssh21:45:310
81560rcu_preempt0-21swapper/123:51:531
81560rcu_preempt0-21swapper/121:51:121
81560rcu_preempt0-21swapper/121:47:511
81560rcu_preempt0-21swapper/120:29:351
81560rcu_preempt0-21swapper/119:59:311
81560rcu_preempt0-21swapper/119:42:131
81560rcu_preempt0-21swapper/023:00:530
81560rcu_preempt0-21swapper/021:17:540
81560rcu_preempt0-21swapper/019:56:280
81550rcu_preempt27901-21ssh22:19:520
81550rcu_preempt17564-21ssh00:00:030
81550rcu_preempt0-21swapper/120:37:341
81550rcu_preempt0-21swapper/120:07:271
81550rcu_preempt0-21swapper/023:57:270
81550rcu_preempt0-21swapper/021:22:210
81540rcu_preempt8731-21memory20:15:160
81540rcu_preempt2618-21ssh23:31:040
81540rcu_preempt25222-21sshd19:12:311
81540rcu_preempt0-21swapper/121:06:381
81540rcu_preempt0-21swapper/120:33:371
81540rcu_preempt0-21swapper/119:38:381
81540rcu_preempt0-21swapper/119:29:261
81540rcu_preempt0-21swapper/022:10:030
81540rcu_preempt0-21swapper/020:30:110
81530rcu_preempt5280-21ssh23:36:050
81530rcu_preempt21971-21diskmemload22:26:270
81520rcu_preempt0-21swapper/021:02:110
81510rcu_preempt30604-21ssh22:24:521
81510rcu_preempt0-21swapper/020:28:280
81500rcu_preempt2235-21snmpd20:20:170
23995995046cyclictest946-21usb-storage21:05:210
81490rcu_preempt7222-21if_can120:10:140
81490rcu_preempt0-21swapper/019:25:130
23995994947cyclictest946-21usb-storage19:15:200
81480rcu_preempt1844-21apt19:50:080
23995994845cyclictest946-21usb-storage19:35:160
81470rcu_preempt16045-21diskstats20:45:120
23995994745cyclictest946-21usb-storage20:40:090
81450rcu_preempt17773-21ntp_states20:50:180
23995994543cyclictest946-21usb-storage19:10:170
81440rcu_preempt29754-21memory19:30:160
23995994341cyclictest946-21usb-storage20:38:090
81410rcu_preempt9082-21/usr/sbin/munin20:15:211
23995994038cyclictest946-21usb-storage20:05:190
23995993735cyclictest946-21usb-storage20:01:090
151450300irq/28-eth0-rx-19388-21uptime20:55:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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