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2026-07-19 - 20:42
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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 Sun Jul 19, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt25106-21diskmemload12:22:011
81760rcu_preempt29023-21grep10:17:081
81760rcu_preempt0-21swapper/107:12:081
81750rcu_preempt2771-21gzip09:32:131
81750rcu_preempt16512-21tr08:42:011
81740rcu_preempt0-21swapper/112:02:071
81730rcu_preempt2499-21needreboot10:27:091
81720rcu_preempt8661-21munin-run08:11:480
81720rcu_preempt2192-21snmpd07:15:580
81720rcu_preempt11937-21ssh11:39:480
81710rcu_preempt5326-21irqstats09:37:081
81710rcu_preempt0-21swapper/111:27:131
81710rcu_preempt0-21swapper/110:42:561
81710rcu_preempt0-21swapper/109:07:081
146550710irq/30-eth0-tx-41ktimersoftd/011:27:060
81700rcu_preempt8508-21sh12:29:270
81700rcu_preempt22296-21sh10:06:471
81700rcu_preempt0-21swapper/112:32:001
81700rcu_preempt0-21swapper/109:12:081
81700rcu_preempt0-21swapper/012:12:570
81700rcu_preempt0-21swapper/011:52:110
81700rcu_preempt0-21swapper/009:20:160
81690rcu_preempt2795-21sh12:19:551
81690rcu_preempt24255-21fw_conntrack09:12:040
81690rcu_preempt13214-21ntp_states12:37:130
81690rcu_preempt0-21swapper/108:32:131
81690rcu_preempt0-21swapper/010:13:280
81690rcu_preempt0-21swapper/009:57:050
81680rcu_preempt6778-21ssh10:34:371
81680rcu_preempt28103-21ssh11:12:040
81680rcu_preempt25106-21diskmemload10:10:030
81680rcu_preempt14011-21ssh12:38:461
81680rcu_preempt0-21swapper/111:58:431
81680rcu_preempt0-21swapper/109:02:061
81680rcu_preempt0-21swapper/107:47:141
81670rcu_preempt8995-21df_abs08:12:031
81670rcu_preempt27930-21ssh09:21:091
81670rcu_preempt0-21swapper/111:26:181
81670rcu_preempt0-21swapper/110:59:181
81670rcu_preempt0-21swapper/010:23:470
81670rcu_preempt0-21swapper/008:00:040
81660rcu_preempt0-21swapper/112:16:361
81660rcu_preempt0-21swapper/111:33:011
81660rcu_preempt0-21swapper/010:27:050
81660rcu_preempt0-21swapper/007:17:050
81650rcu_preempt5705-21ntp_kernel_pll_07:57:091
81650rcu_preempt22097-1kworker/1:1H11:03:371
81650rcu_preempt15689-21ssh12:42:070
81650rcu_preempt13617-21cut09:51:481
81650rcu_preempt0-21swapper/110:48:121
81650rcu_preempt0-21swapper/110:37:591
81650rcu_preempt0-21swapper/011:46:130
81650rcu_preempt0-21swapper/011:06:100
81640rcu_preempt642-21ssh11:21:081
81640rcu_preempt27438-21fw_conntrack12:07:041
81640rcu_preempt16618-21idleruntime10:52:061
81640rcu_preempt16575-21diskstats10:52:040
81640rcu_preempt14464-21ntp_states09:52:120
81640rcu_preempt12338-21ssh09:48:331
81640rcu_preempt0-21swapper/111:56:381
81640rcu_preempt0-21swapper/111:47:111
81640rcu_preempt0-21swapper/109:24:571
81640rcu_preempt0-21swapper/108:09:041
81640rcu_preempt0-21swapper/107:54:551
81630rcu_preempt0-21swapper/111:37:151
81630rcu_preempt0-21swapper/108:53:591
81630rcu_preempt0-21swapper/008:57:040
81630rcu_preempt0-21swapper/008:13:170
81620rcu_preempt28688-21df_abs07:22:030
81620rcu_preempt28688-21df_abs07:22:030
81620rcu_preempt2531-21ssh09:32:090
81620rcu_preempt11172-21munin-run08:21:470
81620rcu_preempt0-21swapper/112:46:271
81620rcu_preempt0-21swapper/110:13:531
81620rcu_preempt0-21swapper/109:57:121
81620rcu_preempt0-21swapper/109:44:161
81620rcu_preempt0-21swapper/107:37:101
81620rcu_preempt0-21swapper/011:22:080
81620rcu_preempt0-21swapper/009:42:130
146550620irq/30-eth0-tx-1283-21jbd2/sda3-807:51:530
81610rcu_preempt6057-21rm09:37:290
81610rcu_preempt31991-21python07:32:121
81610rcu_preempt31991-21python07:32:121
81610rcu_preempt23829-21ssh10:07:381
81610rcu_preempt0-21swapper/107:42:051
81610rcu_preempt0-21swapper/012:17:110
81610rcu_preempt0-21swapper/010:32:140
81610rcu_preempt0-21swapper/008:37:020
81600rcu_preempt32563-21df_abs07:37:040
81600rcu_preempt26946-21apt12:06:490
81600rcu_preempt1320-21ssh09:30:461
81600rcu_preempt0-21swapper/112:27:491
81600rcu_preempt0-21swapper/111:45:351
81600rcu_preempt0-21swapper/111:13:081
81600rcu_preempt0-21swapper/110:23:141
81600rcu_preempt0-21swapper/108:57:061
81600rcu_preempt0-21swapper/108:37:071
81600rcu_preempt0-21swapper/007:27:110
81590rcu_preempt27248-21ssh12:07:020
81590rcu_preempt0-21swapper/111:06:571
81590rcu_preempt0-21swapper/010:57:010
81590rcu_preempt0-21swapper/009:28:490
81590rcu_preempt0-21swapper/007:32:050
81590rcu_preempt0-21swapper/007:32:050
81580rcu_preempt29616-21users07:22:151
81580rcu_preempt29616-21users07:22:151
81580rcu_preempt23116-21ssh11:58:440
81580rcu_preempt18055-21ssh11:50:550
81580rcu_preempt0-21swapper/108:02:121
81580rcu_preempt0-21swapper/012:32:010
81580rcu_preempt0-21swapper/011:07:000
81580rcu_preempt0-21swapper/009:23:360
81570rcu_preempt6027-21ssh12:25:540
81570rcu_preempt31817-21ssh11:17:270
81570rcu_preempt0-21swapper/009:48:420
81570rcu_preempt0-21swapper/009:07:090
81560rcu_preempt30909-21sshd07:27:171
81560rcu_preempt17935-21diskstats08:47:041
81560rcu_preempt11557-21diskstats08:22:011
81560rcu_preempt0-21swapper/010:50:000
81560rcu_preempt0-21swapper/010:18:240
81560rcu_preempt0-21swapper/010:06:240
81550rcu_preempt27521-21diskstats07:17:031
81550rcu_preempt2192-21snmpd10:41:410
81550rcu_preempt0-21swapper/008:52:010
81550rcu_preempt0-21swapper/007:42:290
81540rcu_preempt16794-21if_err_eth108:42:050
81540rcu_preempt10773-21ntp_states08:17:101
81540rcu_preempt0-21swapper/011:35:210
81540rcu_preempt0-21swapper/010:42:030
81540rcu_preempt0-21swapper/008:33:490
81530rcu_preempt0-21swapper/009:04:550
81530rcu_preempt0-21swapper/008:50:370
81520rcu_preempt0-21swapper/007:51:480
81510rcu_preempt0-21swapper/108:31:281
81510rcu_preempt0-21swapper/008:26:080
81510rcu_preempt0-21swapper/008:02:030
81470rcu_preempt13315-21ntpq08:27:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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