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2026-01-06 - 11:40
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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 Tue Jan 06, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811030rcu_preempt0-21swapper/121:50:261
81930rcu_preempt19-21ksoftirqd/123:55:101
81730rcu_preempt3855-21if_can119:06:191
81730rcu_preempt17262-21ssh21:34:541
81700rcu_preempt30471-21ssh23:47:561
81700rcu_preempt2138-21snmpd22:48:110
81700rcu_preempt20349-21sh21:40:150
81700rcu_preempt17354-21sendmail20:01:020
81700rcu_preempt0-21swapper/120:11:301
81700rcu_preempt0-21swapper/023:53:530
81700rcu_preempt0-21swapper/021:54:230
81690rcu_preempt0-21swapper/122:01:201
81690rcu_preempt0-21swapper/122:00:301
81690rcu_preempt0-21swapper/020:16:260
81680rcu_preempt0-21swapper/123:31:401
81680rcu_preempt0-21swapper/122:07:241
81670rcu_preempt7240-21sh23:08:071
81670rcu_preempt5951-21munin-run19:16:021
81670rcu_preempt24542-21grep21:46:230
81670rcu_preempt17130-21apt23:26:130
81670rcu_preempt0-21swapper/100:08:511
81670rcu_preempt0-21swapper/023:06:190
81660rcu_preempt5817-21rm21:16:000
81660rcu_preempt0-21swapper/100:19:461
81660rcu_preempt0-21swapper/000:39:590
81660rcu_preempt0-21swapper/000:03:550
81650rcu_preempt7687-21sh21:17:460
81640rcu_preempt591-21processes22:56:271
81640rcu_preempt4979-21latency_hist00:01:020
81640rcu_preempt4020-21ntpq22:06:230
81640rcu_preempt10910-21ssh22:18:391
81640rcu_preempt0-21swapper/023:20:030
81640rcu_preempt0-21swapper/022:11:310
81640rcu_preempt0-21swapper/021:01:180
81630rcu_preempt8330-21grep19:21:261
81630rcu_preempt27541-21munin-run20:41:031
81630rcu_preempt20827-21ssh22:36:190
81630rcu_preempt18020-21ssh00:22:271
81630rcu_preempt12672-21strings22:21:231
81620rcu_preempt0-21swapper/123:28:221
81620rcu_preempt0-21swapper/021:42:140
81620rcu_preempt0-21swapper/020:07:470
81620rcu_preempt0-21swapper/000:21:160
81610rcu_preempt30370-21ssh23:47:350
81610rcu_preempt29610-21ssh22:51:190
81610rcu_preempt26768-21ssh00:40:571
81610rcu_preempt19472-21/usr/sbin/munin00:26:230
81610rcu_preempt0-21swapper/122:28:321
81610rcu_preempt0-21swapper/121:22:131
81610rcu_preempt0-21swapper/119:46:251
81610rcu_preempt0-21swapper/019:16:180
81610rcu_preempt0-21swapper/000:06:200
81600rcu_preempt22097-21latency_hist00:31:031
81600rcu_preempt18566-21grep21:36:231
81600rcu_preempt0-21swapper/123:45:331
81600rcu_preempt0-21swapper/123:39:561
81600rcu_preempt0-21swapper/123:23:421
81600rcu_preempt0-21swapper/123:15:571
81600rcu_preempt0-21swapper/121:53:121
81600rcu_preempt0-21swapper/121:44:511
81600rcu_preempt0-21swapper/121:01:211
81600rcu_preempt0-21swapper/023:41:190
81600rcu_preempt0-21swapper/022:05:410
81600rcu_preempt0-21swapper/021:30:410
81600rcu_preempt0-21swapper/019:23:050
81600rcu_preempt0-21swapper/019:06:400
81600rcu_preempt0-21swapper/000:18:240
81590rcu_preempt30970-21proc_pri20:51:261
81590rcu_preempt24874-21ssh23:38:180
81590rcu_preempt22156-21ssh23:34:020
81590rcu_preempt13606-21ssh21:28:041
81590rcu_preempt10542-21ssh22:17:330
81590rcu_preempt0-21swapper/123:05:121
81590rcu_preempt0-21swapper/122:54:561
81590rcu_preempt0-21swapper/122:41:521
81590rcu_preempt0-21swapper/122:36:471
81590rcu_preempt0-21swapper/122:33:231
81590rcu_preempt0-21swapper/119:31:151
81590rcu_preempt0-21swapper/023:22:090
81590rcu_preempt0-21swapper/023:13:040
81590rcu_preempt0-21swapper/022:29:180
81590rcu_preempt0-21swapper/022:25:150
81590rcu_preempt0-21swapper/021:59:480
81590rcu_preempt0-21swapper/021:32:160
81590rcu_preempt0-21swapper/000:31:190
81580rcu_preempt9413-21ps19:26:261
81580rcu_preempt6742-21needreboot21:16:241
81580rcu_preempt19774-21ssh22:34:160
81580rcu_preempt0-21swapper/123:20:411
81580rcu_preempt0-21swapper/119:41:231
81580rcu_preempt0-21swapper/021:22:200
81580rcu_preempt0-21swapper/020:51:250
81570rcu_preempt3130-21df21:11:161
81570rcu_preempt26096-21switchtime20:31:271
81570rcu_preempt26063-21ssh22:45:200
81570rcu_preempt18427-21python20:01:270
81570rcu_preempt13429-21ssh00:16:010
81570rcu_preempt0-21swapper/022:59:120
81570rcu_preempt0-21swapper/020:46:180
89850560irq/17-ehci_hcd19965-21if_wlan000:26:231
81560rcu_preempt2138-21snmpd20:57:490
81560rcu_preempt12312-21ssh00:12:251
81560rcu_preempt0-21swapper/122:11:521
81560rcu_preempt0-21swapper/019:49:080
81550rcu_preempt7037-21ssh00:03:381
81550rcu_preempt0-21swapper/123:57:331
81550rcu_preempt0-21swapper/122:46:411
81550rcu_preempt0-21swapper/120:10:061
81550rcu_preempt0-21swapper/119:56:191
81550rcu_preempt0-21swapper/019:44:240
81550rcu_preempt0-21swapper/019:32:420
81540rcu_preempt0-21swapper/120:26:201
81540rcu_preempt0-21swapper/120:03:061
81540rcu_preempt0-21swapper/023:02:270
81540rcu_preempt0-21swapper/021:06:360
81540rcu_preempt0-21swapper/020:43:370
81540rcu_preempt0-21swapper/020:33:420
81540rcu_preempt0-21swapper/020:26:290
81540rcu_preempt0-21swapper/020:11:500
81540rcu_preempt0-21swapper/019:51:310
81530rcu_preempt0-21swapper/120:46:161
81530rcu_preempt0-21swapper/120:43:351
81520rcu_preempt0-21swapper/120:19:561
81520rcu_preempt0-21swapper/019:26:510
81510rcu_preempt23052-21irqstats20:21:241
81510rcu_preempt0-21swapper/121:09:271
81510rcu_preempt0-21swapper/119:40:591
81490rcu_preempt23297-21ntp_states20:21:270
81480rcu_preempt6355-21fw_conntrack19:16:191
81480rcu_preempt32194-21ntp_states20:56:251
81480rcu_preempt11732-21memory19:36:200
81470rcu_preempt0-21swapper/119:55:031
1599370migration/05771-21/usr/sbin/munin19:11:250
4699993229cyclictest945-21usb-storage20:36:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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