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2025-11-23 - 00:48
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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 Sat Nov 22, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81700rcu_preempt0-21swapper/011:29:080
81680rcu_preempt0-21swapper/112:30:121
81680rcu_preempt0-21swapper/112:30:121
81680rcu_preempt0-21swapper/112:29:251
81680rcu_preempt0-21swapper/112:09:281
81680rcu_preempt0-21swapper/012:05:210
81680rcu_preempt0-21swapper/010:01:210
81670rcu_preempt21892-21ssh09:55:140
81670rcu_preempt12470-21threads10:35:190
81670rcu_preempt0-21swapper/111:30:151
81670rcu_preempt0-21swapper/109:22:171
81660rcu_preempt0-21swapper/111:59:441
81660rcu_preempt0-21swapper/108:30:071
81660rcu_preempt0-21swapper/009:35:030
81650rcu_preempt7357-21df_abs11:25:081
81650rcu_preempt30498-21proc_pri07:10:171
81650rcu_preempt0-21swapper/112:00:431
81650rcu_preempt0-21swapper/110:50:211
81650rcu_preempt0-21swapper/109:40:581
81650rcu_preempt0-21swapper/109:16:011
81650rcu_preempt0-21swapper/007:43:360
81640rcu_preempt19596-21munin-run10:49:520
81640rcu_preempt0-21swapper/111:35:021
81640rcu_preempt0-21swapper/109:25:551
81640rcu_preempt0-21swapper/010:13:160
81630rcu_preempt0-21swapper/111:23:001
81630rcu_preempt0-21swapper/111:10:571
81630rcu_preempt0-21swapper/111:06:571
81630rcu_preempt0-21swapper/009:49:210
81630rcu_preempt0-21swapper/007:50:220
81620rcu_preempt26624-21latency_hist11:59:520
81620rcu_preempt11265-21/usr/sbin/munin08:05:121
81620rcu_preempt0-21swapper/107:48:321
81620rcu_preempt0-21swapper/107:20:151
81620rcu_preempt0-21swapper/012:33:390
81620rcu_preempt0-21swapper/012:33:390
81620rcu_preempt0-21swapper/012:29:260
81620rcu_preempt0-21swapper/011:20:040
81620rcu_preempt0-21swapper/010:55:100
81620rcu_preempt0-21swapper/010:44:310
81610rcu_preempt8702-21cat07:54:531
81610rcu_preempt19090-21ssh10:48:211
81610rcu_preempt0-21swapper/112:20:111
81610rcu_preempt0-21swapper/111:15:161
81610rcu_preempt0-21swapper/012:37:330
81610rcu_preempt0-21swapper/011:00:290
81610rcu_preempt0-21swapper/011:00:290
81610rcu_preempt0-21swapper/007:48:120
29613996145cyclictest946-21usb-storage10:06:181
81600rcu_preempt31834-21ssh10:13:221
81600rcu_preempt20771-21ssh11:49:121
81600rcu_preempt0-21swapper/110:35:141
81600rcu_preempt0-21swapper/109:56:111
81600rcu_preempt0-21swapper/012:00:160
81600rcu_preempt0-21swapper/008:35:140
81600rcu_preempt0-21swapper/008:15:070
81590rcu_preempt25661-21ssh10:01:251
81590rcu_preempt2164-21ssh10:17:481
81590rcu_preempt19993-21ssh09:51:321
81590rcu_preempt1710-21ssh10:16:310
81590rcu_preempt16946-21ssh09:46:021
81590rcu_preempt16665-21timerandwakeup11:40:190
81590rcu_preempt1622-21ssh12:12:001
81590rcu_preempt0-21swapper/111:50:521
81590rcu_preempt0-21swapper/110:42:151
81590rcu_preempt0-21swapper/109:37:211
81590rcu_preempt0-21swapper/109:31:541
81590rcu_preempt0-21swapper/109:11:361
81590rcu_preempt0-21swapper/108:38:341
81590rcu_preempt0-21swapper/011:36:360
81590rcu_preempt0-21swapper/010:08:130
89650580irq/17-ehci_hcd21072-21ssh09:54:480
81580rcu_preempt22351-21switchtime08:45:170
81580rcu_preempt18044-21ssh11:44:351
81580rcu_preempt17294-21python08:25:181
81580rcu_preempt0-21swapper/112:16:471
81580rcu_preempt0-21swapper/111:00:241
81580rcu_preempt0-21swapper/111:00:241
81580rcu_preempt0-21swapper/110:55:491
81580rcu_preempt0-21swapper/110:32:041
81580rcu_preempt0-21swapper/011:30:180
81580rcu_preempt0-21swapper/009:31:520
81580rcu_preempt0-21swapper/009:14:320
151950580irq/31-eth0-tx-24558-21kworker/1:107:07:341
81570rcu_preempt28706-21diskstats07:05:090
81570rcu_preempt23935-21apt08:55:050
81570rcu_preempt21722-21irqstats11:50:130
81570rcu_preempt13201-21latency_hist12:34:531
81570rcu_preempt0-21swapper/110:26:151
81570rcu_preempt0-21swapper/108:14:331
81570rcu_preempt0-21swapper/107:43:451
81570rcu_preempt0-21swapper/012:18:420
81570rcu_preempt0-21swapper/011:10:070
81570rcu_preempt0-21swapper/011:07:450
81570rcu_preempt0-21swapper/008:09:330
81560rcu_preempt3552-21munin-run07:34:520
81560rcu_preempt3528-21ssh11:17:520
81560rcu_preempt20168-21apt-esm-hook08:40:071
81560rcu_preempt0-21swapper/110:20:061
81560rcu_preempt0-21swapper/108:50:191
81560rcu_preempt0-21swapper/107:50:311
81560rcu_preempt0-21swapper/107:25:121
81560rcu_preempt0-21swapper/010:34:330
81560rcu_preempt0-21swapper/010:29:340
81560rcu_preempt0-21swapper/009:40:040
81560rcu_preempt0-21swapper/009:26:160
81560rcu_preempt0-21swapper/009:15:190
81560rcu_preempt0-21swapper/008:30:190
81550rcu_preempt0-21swapper/109:00:301
81550rcu_preempt0-21swapper/108:56:331
81550rcu_preempt0-21swapper/108:04:531
81550rcu_preempt0-21swapper/012:23:290
81550rcu_preempt0-21swapper/007:10:410
81540rcu_preempt19622-21ssh11:45:370
81540rcu_preempt16472-21cpuspeed_turbos08:25:070
81540rcu_preempt1645-21ssh12:12:030
81540rcu_preempt0-21swapper/107:36:331
81540rcu_preempt0-21swapper/010:20:300
81540rcu_preempt0-21swapper/009:01:520
81540rcu_preempt0-21swapper/008:02:090
81530rcu_preempt27603-21diskmemload10:51:360
81530rcu_preempt0-21swapper/107:15:091
81530rcu_preempt0-21swapper/007:22:430
81530rcu_preempt0-21swapper/007:15:110
81520rcu_preempt0-21swapper/008:11:330
81510rcu_preempt2526-21ssh09:20:240
81510rcu_preempt0-21swapper/108:17:301
81510rcu_preempt0-21swapper/009:09:160
81510rcu_preempt0-21swapper/007:57:410
81500rcu_preempt4377-21ntpdc07:35:140
81500rcu_preempt0-21swapper/008:42:040
81490rcu_preempt0-21swapper/108:49:331
29613994946cyclictest2235-21snmpd08:21:271
29613994845cyclictest946-21usb-storage07:30:071
81440rcu_preempt27195-21ntp_states09:05:141
81440rcu_preempt23225-21latency08:50:120
151750420irq/29-eth0-rx-0-21swapper/007:25:180
81380rcu_preempt15364-21diskstats08:20:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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