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2025-11-11 - 04:25
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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 Nov 11, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81740rcu_preempt8962-21apt-get00:10:131
81740rcu_preempt0-21swapper/120:25:131
81730rcu_preempt0-21swapper/119:05:321
81720rcu_preempt0-21swapper/100:30:211
81690rcu_preempt0-21swapper/021:50:090
81690rcu_preempt0-21swapper/021:50:090
81660rcu_preempt14362-21ntp_states21:25:250
81650rcu_preempt0-21swapper/123:53:561
81650rcu_preempt0-21swapper/019:10:230
81640rcu_preempt0-21swapper/122:41:201
81640rcu_preempt0-21swapper/121:35:321
81630rcu_preempt0-21swapper/123:16:411
81630rcu_preempt0-21swapper/123:16:411
81630rcu_preempt0-21swapper/122:25:211
81630rcu_preempt0-21swapper/121:05:221
90050620irq/17-ehci_hcd946-21usb-storage22:17:401
81620rcu_preempt18421-21ssh00:25:431
81620rcu_preempt0-21swapper/122:02:471
81620rcu_preempt0-21swapper/019:45:230
6663996243cyclictest181ktimersoftd/123:35:261
81610rcu_preempt8778-21ssh22:13:041
81610rcu_preempt27111-21ssh21:48:251
81610rcu_preempt20061-21ssh22:32:541
81610rcu_preempt0-21swapper/121:30:501
90050600irq/17-ehci_hcd946-21usb-storage22:38:090
81600rcu_preempt9457-21ssh21:16:471
81600rcu_preempt31366-21ssh21:55:201
81600rcu_preempt28932-21ssh23:45:301
81600rcu_preempt22952-21ntpq21:40:231
81600rcu_preempt12821-21ssh21:23:071
81600rcu_preempt0-21swapper/122:45:281
81600rcu_preempt0-21swapper/122:35:281
81600rcu_preempt0-21swapper/121:12:151
81600rcu_preempt0-21swapper/120:15:191
81600rcu_preempt0-21swapper/119:15:241
81590rcu_preempt8419-21if_err_eth019:15:210
81590rcu_preempt0-21swapper/123:56:561
81590rcu_preempt0-21swapper/123:32:341
81590rcu_preempt0-21swapper/123:08:041
81590rcu_preempt0-21swapper/121:26:291
81590rcu_preempt0-21swapper/100:15:151
151450590irq/28-eth0-rx-41ktimersoftd/000:19:340
81580rcu_preempt25246-21ssh00:39:241
81580rcu_preempt21804-21munin-run20:10:000
81580rcu_preempt16675-21ssh00:23:571
81580rcu_preempt0-21swapper/123:23:321
81580rcu_preempt0-21swapper/123:13:411
81580rcu_preempt0-21swapper/122:22:481
81580rcu_preempt0-21swapper/122:08:431
81580rcu_preempt0-21swapper/121:50:261
81580rcu_preempt0-21swapper/121:50:261
81580rcu_preempt0-21swapper/120:45:181
81580rcu_preempt0-21swapper/119:45:231
81580rcu_preempt0-21swapper/119:35:211
81580rcu_preempt0-21swapper/100:07:521
81580rcu_preempt0-21swapper/021:44:260
81580rcu_preempt0-21swapper/021:35:160
81570rcu_preempt0-21swapper/123:40:191
81570rcu_preempt0-21swapper/123:25:461
81570rcu_preempt0-21swapper/123:01:141
81570rcu_preempt0-21swapper/122:55:531
81570rcu_preempt0-21swapper/120:50:261
81570rcu_preempt0-21swapper/100:00:131
81570rcu_preempt0-21swapper/021:21:310
81570rcu_preempt0-21swapper/021:14:140
81570rcu_preempt0-21swapper/019:30:260
81560rcu_preempt26246-21ssh21:45:520
81560rcu_preempt0-21swapper/122:51:171
81560rcu_preempt0-21swapper/120:39:051
81560rcu_preempt0-21swapper/119:30:031
81560rcu_preempt0-21swapper/119:29:421
81550rcu_preempt4018-21kworker/0:219:05:220
81550rcu_preempt0-21swapper/120:56:371
81550rcu_preempt0-21swapper/021:15:130
81550rcu_preempt0-21swapper/021:00:250
81550rcu_preempt0-21swapper/020:39:170
81550rcu_preempt0-21swapper/019:35:220
151950550irq/31-eth0-tx-41ktimersoftd/023:35:040
81540rcu_preempt10413-21users19:20:271
81540rcu_preempt0-21swapper/120:10:241
81540rcu_preempt0-21swapper/022:57:490
81540rcu_preempt0-21swapper/021:33:490
81540rcu_preempt0-21swapper/020:47:280
81540rcu_preempt0-21swapper/020:15:250
81540rcu_preempt0-21swapper/020:13:210
81540rcu_preempt0-21swapper/019:55:390
81540rcu_preempt0-21swapper/019:52:050
81530rcu_preempt0-21swapper/119:56:361
81530rcu_preempt0-21swapper/119:41:371
81530rcu_preempt0-21swapper/019:29:570
151450530irq/28-eth0-rx-41ktimersoftd/023:48:540
81520rcu_preempt4635-21diskmemload23:06:300
81520rcu_preempt4635-21diskmemload22:31:030
81520rcu_preempt24963-21ssh22:40:540
81520rcu_preempt21690-21ssh00:32:200
81520rcu_preempt0-21swapper/120:32:031
81520rcu_preempt0-21swapper/021:06:000
81520rcu_preempt0-21swapper/020:44:250
81520rcu_preempt0-21swapper/020:02:460
81520rcu_preempt0-21swapper/019:23:390
81510rcu_preempt0-21swapper/121:04:371
81510rcu_preempt0-21swapper/020:29:180
6662995148cyclictest946-21usb-storage00:28:380
81500rcu_preempt6786-21/usr/sbin/munin19:10:171
81500rcu_preempt0-21swapper/023:59:420
81500rcu_preempt0-21swapper/022:20:250
6662995047cyclictest946-21usb-storage23:29:030
6662995047cyclictest946-21usb-storage23:22:580
151750500irq/29-eth0-rx-3714-21ssh23:00:490
81490rcu_preempt0-21swapper/020:20:230
6662994947cyclictest946-21usb-storage23:16:330
6662994947cyclictest946-21usb-storage23:16:330
151450490irq/28-eth0-rx-41ktimersoftd/022:48:230
81480rcu_preempt29771-21diskstats20:40:161
81470rcu_preempt0-21swapper/020:31:290
90050460irq/17-ehci_hcd26308-1kworker/0:2H20:58:130
81460rcu_preempt3-21ksoftirqd/023:52:210
81460rcu_preempt3-21ksoftirqd/022:16:140
81440rcu_preempt24746-21fw_forwarded_lo20:20:181
89650430irq/17-ehci_hcd0-21swapper/023:14:340
81420rcu_preempt32284-21diskstats20:50:160
6663994240cyclictest15477-21kworker/1:219:53:191
151950420irq/31-eth0-tx-20020-21wc20:00:211
151950420irq/31-eth0-tx-17301-21rm22:28:220
151950420irq/31-eth0-tx-1642-21ssh22:00:210
81410rcu_preempt26309-21ssh23:41:150
151950410irq/31-eth0-tx-31742-21rm22:54:520
151950410irq/31-eth0-tx-16867-21rm00:24:360
81400rcu_preempt3-21ksoftirqd/023:34:350
151450400irq/28-eth0-rx-946-21usb-storage00:38:320
151850390irq/30-eth0-tx-7023-21ssh22:10:150
151450390irq/28-eth0-rx-946-21usb-storage22:06:000
6663993836cyclictest946-21usb-storage20:07:091
151950380irq/31-eth0-tx-5199-21ssh00:01:480
151950350irq/31-eth0-tx-26308-1kworker/0:2H21:57:050
81340rcu_preempt3-21ksoftirqd/000:13:510
151950340irq/31-eth0-tx-0-21swapper/000:05:500
1599320migration/015245-21mailstats19:40:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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