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2025-07-13 - 22:01
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Sun Jul 13, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt0-21swapper/112:21:031
81740rcu_preempt0-21swapper/112:36:091
81730rcu_preempt9071-21memory12:31:110
81730rcu_preempt31772-21ssh09:21:041
81730rcu_preempt26020-21ssh12:02:011
81720rcu_preempt0-21swapper/111:44:511
81720rcu_preempt0-21swapper/109:19:501
81710rcu_preempt2224-21snmpd07:10:111
81710rcu_preempt0-21swapper/112:16:081
81700rcu_preempt0-21swapper/111:23:201
81700rcu_preempt0-21swapper/011:07:360
81690rcu_preempt0-21swapper/108:16:141
81680rcu_preempt0-21swapper/012:21:190
81680rcu_preempt0-21swapper/012:11:260
81680rcu_preempt0-21swapper/012:11:260
81680rcu_preempt0-21swapper/007:26:150
89550670irq/17-ehci_hcd111rcuc/011:53:520
81650rcu_preempt3964-21ssh09:28:110
81650rcu_preempt0-21swapper/012:04:310
81650rcu_preempt0-21swapper/012:00:290
81640rcu_preempt11370-21df_inode12:36:070
81630rcu_preempt24123-21ssh11:01:030
81630rcu_preempt14530-21ntp_states11:41:160
81630rcu_preempt0-21swapper/012:30:280
81630rcu_preempt0-21swapper/011:27:070
81630rcu_preempt0-21swapper/011:16:050
81630rcu_preempt0-21swapper/010:06:040
81620rcu_preempt1592-21lldpd09:56:080
81620rcu_preempt0-21swapper/010:47:560
81620rcu_preempt0-21swapper/010:20:490
81610rcu_preempt25046-21munin-run10:05:500
81610rcu_preempt16706-21ssh09:50:550
81610rcu_preempt0-21swapper/010:11:140
81600rcu_preempt8685-21ssh11:31:070
81600rcu_preempt0-21swapper/108:26:371
81600rcu_preempt0-21swapper/012:18:080
81600rcu_preempt0-21swapper/010:36:120
81600rcu_preempt0-21swapper/009:31:070
81590rcu_preempt27370-21ssh12:06:021
81590rcu_preempt1422-21ssh10:21:001
81590rcu_preempt13126-21ssh11:39:321
81590rcu_preempt0-21swapper/112:30:571
81590rcu_preempt0-21swapper/010:25:120
81580rcu_preempt6079-21ssh10:28:181
81580rcu_preempt26547-21apt-get07:06:020
81580rcu_preempt25650-21ssh11:02:281
81580rcu_preempt24079-21ssh11:59:411
81580rcu_preempt20897-21ssh11:52:471
81580rcu_preempt20593-21ssh10:54:021
81580rcu_preempt17918-21ssh11:46:541
81580rcu_preempt12799-21ssh10:40:571
81580rcu_preempt0-21swapper/112:27:341
81580rcu_preempt0-21swapper/111:06:201
81580rcu_preempt0-21swapper/110:46:411
81580rcu_preempt0-21swapper/110:18:231
81580rcu_preempt0-21swapper/110:05:551
81580rcu_preempt0-21swapper/109:40:271
81580rcu_preempt0-21swapper/107:11:181
81580rcu_preempt0-21swapper/011:48:340
81580rcu_preempt0-21swapper/011:37:510
81580rcu_preempt0-21swapper/010:26:090
81580rcu_preempt0-21swapper/009:45:350
81580rcu_preempt0-21swapper/009:22:370
81570rcu_preempt30234-21ssh09:17:130
81570rcu_preempt29517-21ssh10:12:011
81570rcu_preempt26551-21open_inodes09:11:150
81570rcu_preempt0-21swapper/111:33:201
81570rcu_preempt0-21swapper/111:27:391
81570rcu_preempt0-21swapper/111:16:171
81570rcu_preempt0-21swapper/110:59:161
81570rcu_preempt0-21swapper/110:36:151
81570rcu_preempt0-21swapper/110:32:271
81570rcu_preempt0-21swapper/109:58:091
81570rcu_preempt0-21swapper/109:54:161
81570rcu_preempt0-21swapper/109:41:151
81570rcu_preempt0-21swapper/109:26:021
81570rcu_preempt0-21swapper/107:46:131
81570rcu_preempt0-21swapper/107:31:101
81570rcu_preempt0-21swapper/107:16:111
81560rcu_preempt7769-21ssh10:31:110
81560rcu_preempt15020-21ssh10:44:390
81560rcu_preempt0-21swapper/111:14:211
81560rcu_preempt0-21swapper/110:04:171
81560rcu_preempt0-21swapper/109:32:021
81560rcu_preempt0-21swapper/109:11:171
81560rcu_preempt0-21swapper/109:01:091
81560rcu_preempt0-21swapper/108:41:261
81560rcu_preempt0-21swapper/108:01:101
81560rcu_preempt0-21swapper/107:44:051
81560rcu_preempt0-21swapper/010:59:140
81560rcu_preempt0-21swapper/008:26:490
81560rcu_preempt0-21swapper/007:16:360
81550rcu_preempt4836-21ssh11:23:430
81550rcu_preempt0-21swapper/108:51:121
81550rcu_preempt0-21swapper/108:46:051
81550rcu_preempt0-21swapper/108:31:181
81550rcu_preempt0-21swapper/107:28:241
81550rcu_preempt0-21swapper/012:07:390
81550rcu_preempt0-21swapper/011:10:520
81550rcu_preempt0-21swapper/010:55:040
81550rcu_preempt0-21swapper/008:11:090
81540rcu_preempt0-21swapper/112:14:391
81540rcu_preempt0-21swapper/112:14:391
81540rcu_preempt0-21swapper/009:48:190
81540rcu_preempt0-21swapper/008:01:050
81530rcu_preempt0-21swapper/109:47:151
81530rcu_preempt0-21swapper/108:21:071
81530rcu_preempt0-21swapper/009:39:510
81530rcu_preempt0-21swapper/009:08:330
81530rcu_preempt0-21swapper/008:25:070
81520rcu_preempt0-21swapper/008:46:110
27696995248cyclictest945-21usb-storage08:06:050
81510rcu_preempt3693-21awk07:41:120
81510rcu_preempt18006-21sendmail08:40:500
81510rcu_preempt0-21swapper/008:57:110
81510rcu_preempt0-21swapper/007:50:450
81510rcu_preempt0-21swapper/007:31:060
27697995148cyclictest945-21usb-storage08:13:271
27697995148cyclictest945-21usb-storage07:36:131
81500rcu_preempt18701-21memory08:41:140
81500rcu_preempt0-21swapper/007:52:330
27697995048cyclictest945-21usb-storage08:56:051
27697995047cyclictest945-21usb-storage07:51:101
141050500irq/28-eth0-rx-0-21swapper/108:36:161
27697994947cyclictest945-21usb-storage07:56:091
27697994946cyclictest945-21usb-storage07:20:511
81480rcu_preempt2209-21irqstats07:36:110
81480rcu_preempt0-21swapper/008:54:230
81480rcu_preempt0-21swapper/008:35:270
27697994845cyclictest945-21usb-storage09:06:441
27697994845cyclictest945-21usb-storage08:06:111
27696994845cyclictest945-21usb-storage07:56:110
27696994744cyclictest945-21usb-storage07:21:200
1599380migration/028664-21/usr/sbin/munin07:11:170
81340rcu_preempt3-21ksoftirqd/008:20:500
141350330irq/31-eth0-tx-0-21swapper/009:01:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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