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2026-06-27 - 22:24
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the highest latencies:
System rack6slot5.osadl.org (updated Sat Jun 27, 2026 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59519986534385,4226cyclictest11431-21kworker/0:107:14:330
59519958173156,2658cyclictest11431-21kworker/0:107:16:080
56442778187,202sleep00-21swapper07:08:060
59519955026,463cyclictest13541-21ssh11:12:050
59519949035,441cyclictest4924-21runrttasks11:01:240
59519947637,199cyclictest2497-21ssh09:41:420
59519946832,375cyclictest20991-21iostat10:20:400
59519946748,359cyclictest7657-21kworker/u2:312:09:240
59519946632,374cyclictest27080-21memory11:40:430
59519945932,427cyclictest19808-21ssh10:18:300
59519945732,365cyclictest15496-21latency_hist10:10:040
59519945631,359cyclictest20219-21ssh09:11:160
59519945532,373cyclictest17229-21ssh11:20:360
59519943049,198cyclictest18945-21diskmemload09:26:460
59519942033,374cyclictest14036-21needreboot12:20:480
59519941533,367cyclictest9637-21perl12:11:170
59519941231,372cyclictest22601-21ssh11:31:070
59519941030,203cyclictest897-21jbd2/sda1-810:35:060
59519940832,362cyclictest7820-21ssh09:53:240
59519940735,359cyclictest20566-21kworker/u2:310:33:030
59519940719,366cyclictest20387-21latency_hist12:35:050
59519940636,304cyclictest31682-21sshd11:50:360
59519940634,372cyclictest0-21swapper08:55:400
59519940535,370cyclictest4924-21runrttasks09:31:520
59519940532,359cyclictest4663-21ls10:55:010
59519940518,270cyclictest897-21jbd2/sda1-811:07:480
59519940333,358cyclictest18945-21diskmemload09:23:010
59519940234,358cyclictest20314-19edd_id11:26:150
59519940232,370cyclictest0-21swapper09:59:400
59519940132,365cyclictest22124-21ssh12:37:450
59519940128,218cyclictest12-21rcu_preempt12:20:010
59519940049,338cyclictest344450irq/10-eth009:36:200
59519940034,366cyclictest5965-21ssh10:56:170
59519940016,371cyclictest3928-21sed12:00:290
59519939944,341cyclictest10807-21seq10:00:140
59519939739,299cyclictest15973-21ssh11:17:160
59519939635,88cyclictest17224-21ssh12:27:190
59519939632,364cyclictest0-21swapper08:45:420
59519939532,349cyclictest4946-21fschecks_count09:46:280
59519939532,349cyclictest23253-21kworker/0:211:37:450
59519939532,349cyclictest19760-21latency_hist07:45:030
59519939436,346cyclictest351950irq/10-yenta11:49:120
59519939418,88cyclictest18146-19blkid09:05:490
59519939331,350cyclictest13821-21sshd07:29:350
59519939331,349cyclictest22519-21python09:16:060
59519939043,286cyclictest7795-21sendmail08:40:010
59519939031,345cyclictest32548-21ls10:45:240
59519938834,340cyclictest18945-21diskmemload11:55:140
59519938632,341cyclictest4305-21snmpd07:56:180
59519938433,337cyclictest24550-21sh10:28:130
59519938216,305cyclictest29929-21munin-node10:41:070
59519938052,269cyclictest14001-21munin-node07:30:220
59519938050,270cyclictest30937-21munin-node08:15:590
59519937646,270cyclictest29912-21basename08:10:430
59519937441,272cyclictest10939-21wc07:20:330
59519937438,277cyclictest4924-21runrttasks07:45:240
59519937432,273cyclictest4305-21snmpd07:36:090
59519937343,270cyclictest5314-21proc_pri08:30:570
59519937143,268cyclictest16099-21nfs_client09:00:350
59519936633,272cyclictest728-21df_inode08:20:250
59519934932,258cyclictest17814-21ssh10:15:020
59519934632,80cyclictest8755-21munin-node08:40:430
59519934532,244cyclictest22810-21ls07:50:580
59519933654,258cyclictest4224-21lldpd08:50:160
59519932857,257cyclictest28260-19udisks-part-id08:05:520
59519932653,259cyclictest25658-21gltestperf08:00:210
59519932250,259cyclictest2532-21cut08:25:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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