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2026-08-19 - 23:49
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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 Wed Aug 19, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81870rcu_preempt0-21swapper/009:09:340
81750rcu_preempt27521-21ssh10:09:430
81750rcu_preempt0-21swapper/107:17:391
81730rcu_preempt4414-21ssh11:29:510
81720rcu_preempt28860-21ssh11:14:480
81720rcu_preempt0-21swapper/010:44:510
81710rcu_preempt0-21swapper/012:36:000
81710rcu_preempt0-21swapper/009:31:320
81700rcu_preempt0-21swapper/010:55:520
81700rcu_preempt0-21swapper/010:55:520
81690rcu_preempt7881-21diskstats10:34:380
81690rcu_preempt0-21swapper/011:25:340
81690rcu_preempt0-21swapper/009:59:480
81680rcu_preempt0-21swapper/109:14:491
81680rcu_preempt0-21swapper/107:24:421
81680rcu_preempt0-21swapper/012:33:180
81680rcu_preempt0-21swapper/012:20:370
81680rcu_preempt0-21swapper/010:19:390
81670rcu_preempt6531-21munin-run07:34:230
81670rcu_preempt16756-21/usr/sbin/munin08:14:501
81670rcu_preempt13855-21if_eth111:49:440
81670rcu_preempt0-21swapper/111:29:441
81670rcu_preempt0-21swapper/111:04:511
81660rcu_preempt0-21swapper/110:29:061
81660rcu_preempt0-21swapper/109:59:491
81660rcu_preempt0-21swapper/109:42:281
146250660irq/28-eth0-rx-3-21ksoftirqd/007:15:450
81650rcu_preempt17344-21ssh10:53:431
81650rcu_preempt0-21swapper/112:01:391
81650rcu_preempt0-21swapper/110:13:371
81640rcu_preempt31816-21ssh12:24:460
81640rcu_preempt26938-21ssh12:14:481
81640rcu_preempt12288-21missed_timers07:54:440
81640rcu_preempt0-21swapper/112:06:331
81630rcu_preempt30076-21sh11:18:391
81630rcu_preempt0-21swapper/111:55:161
81630rcu_preempt0-21swapper/108:39:071
81630rcu_preempt0-21swapper/108:24:091
81620rcu_preempt2762-21ssh12:30:441
81620rcu_preempt19408-21ssh10:57:021
81620rcu_preempt19408-21ssh10:57:021
81620rcu_preempt0-21swapper/110:04:481
81620rcu_preempt0-21swapper/109:29:421
81620rcu_preempt0-21swapper/109:29:091
81620rcu_preempt0-21swapper/009:58:480
81610rcu_preempt837-21ssh09:19:331
81610rcu_preempt7731-21ssh12:40:191
81610rcu_preempt5263-21ssh10:29:401
81610rcu_preempt27396-21ssh11:12:561
81610rcu_preempt20965-21if_eth008:29:421
81610rcu_preempt10980-21ssh09:38:171
81610rcu_preempt0-21swapper/112:19:431
81610rcu_preempt0-21swapper/111:21:191
81610rcu_preempt0-21swapper/110:22:351
81610rcu_preempt0-21swapper/109:57:101
81610rcu_preempt0-21swapper/108:54:481
81610rcu_preempt0-21swapper/012:00:170
81610rcu_preempt0-21swapper/011:45:390
81610rcu_preempt0-21swapper/009:53:210
81610rcu_preempt0-21swapper/008:49:450
81600rcu_preempt22105-21ssh11:02:491
81600rcu_preempt0-21swapper/112:34:451
81600rcu_preempt0-21swapper/112:12:031
81600rcu_preempt0-21swapper/112:12:031
81600rcu_preempt0-21swapper/110:40:071
81600rcu_preempt0-21swapper/108:59:381
81600rcu_preempt0-21swapper/107:57:081
81600rcu_preempt0-21swapper/011:40:330
81600rcu_preempt0-21swapper/007:24:330
81590rcu_preempt9802-21ssh11:41:071
81590rcu_preempt9027-21ssh10:35:491
81590rcu_preempt31635-21ssh10:17:371
81590rcu_preempt22831-21ssh12:07:400
81590rcu_preempt19-21ksoftirqd/112:44:461
81590rcu_preempt13817-21sshd07:59:471
81590rcu_preempt12539-21ssh10:44:301
81590rcu_preempt0-21swapper/111:34:561
81590rcu_preempt0-21swapper/108:04:411
81590rcu_preempt0-21swapper/107:46:021
81590rcu_preempt0-21swapper/107:29:371
81590rcu_preempt0-21swapper/011:35:330
81590rcu_preempt0-21swapper/010:32:570
81580rcu_preempt9047-21munin-run07:44:230
81580rcu_preempt9021-21sshd07:40:471
81580rcu_preempt32234-21ssh11:22:020
81580rcu_preempt28660-21irqstats08:59:430
81580rcu_preempt27693-21ssh12:16:230
81580rcu_preempt2177-21ssh11:26:111
81580rcu_preempt15155-21ssh10:49:260
81580rcu_preempt14819-21ssh11:50:591
81580rcu_preempt0-21swapper/112:26:431
81580rcu_preempt0-21swapper/107:19:451
81580rcu_preempt0-21swapper/011:09:420
81570rcu_preempt9586-21ssh12:44:450
81570rcu_preempt4684-21ssh10:29:030
81570rcu_preempt31650-21ssh10:17:390
81570rcu_preempt27877-21wc08:54:500
81570rcu_preempt22674-21latency_hist11:04:240
81570rcu_preempt15771-21ssh09:46:270
81570rcu_preempt11949-21ssh09:39:430
81570rcu_preempt0-21swapper/111:47:301
81570rcu_preempt0-21swapper/011:58:100
81570rcu_preempt0-21swapper/009:37:560
81560rcu_preempt3-21ksoftirqd/011:03:090
81560rcu_preempt0-21swapper/109:49:541
81560rcu_preempt0-21swapper/109:46:321
81560rcu_preempt0-21swapper/108:24:471
81560rcu_preempt0-21swapper/108:09:571
81560rcu_preempt0-21swapper/012:12:120
81560rcu_preempt0-21swapper/012:12:120
81560rcu_preempt0-21swapper/009:27:120
81560rcu_preempt0-21swapper/009:19:550
81560rcu_preempt0-21swapper/008:44:430
81560rcu_preempt0-21swapper/008:29:500
81550rcu_preempt25777-21ssh10:05:080
81550rcu_preempt2192-21snmpd08:54:101
81550rcu_preempt11491-21ssh10:40:530
81550rcu_preempt0-21swapper/012:42:460
81540rcu_preempt0-21swapper/008:39:410
81540rcu_preempt0-21swapper/007:34:260
81530rcu_preempt0-21swapper/007:22:410
2742995349cyclictest945-21usb-storage07:34:391
146250530irq/28-eth0-rx-41ktimersoftd/008:37:410
81520rcu_preempt30788-21awk09:09:361
81520rcu_preempt18945-21python08:19:480
81520rcu_preempt10702-21df_inode07:49:381
2741995249cyclictest945-21usb-storage08:03:520
89950510irq/17-ehci_hcd15917-21if_eth008:09:430
81510rcu_preempt24232-21sshd08:42:431
81510rcu_preempt0-21swapper/008:25:380
81510rcu_preempt0-21swapper/008:18:300
2742995148cyclictest945-21usb-storage08:45:481
2741995148cyclictest945-21usb-storage09:19:230
2741994744cyclictest945-21usb-storage09:08:580
2741994744cyclictest945-21usb-storage07:44:410
81410rcu_preempt0-21swapper/008:04:520
2742994138cyclictest945-21usb-storage09:04:441
146450400irq/29-eth0-rx-0-21swapper/007:49:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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