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2026-08-19 - 03:14
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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
Characteristics of the highest latencies:
System rack6slot6 (updated Wed Aug 19, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
160089910665753414,53152cyclictest0-21swapper20:30:090
160089910647353428,53045cyclictest0-21swapper20:24:170
160089910644553398,53047cyclictest0-21swapper19:36:030
160089910642853436,52992cyclictest0-21swapper20:43:530
160089910641853415,52912cyclictest0-21swapper19:34:530
160089910640253475,52862cyclictest5350irq/9-uhci_hcd:00:11:520
160089910627053394,52811cyclictest0-21swapper21:03:480
160089910621953473,52746cyclictest0-21swapper20:04:210
160089910621453469,52745cyclictest0-21swapper20:28:480
160089910621053473,52737cyclictest0-21swapper20:57:360
160089910620753479,52728cyclictest0-21swapper19:56:190
160089910619653465,52731cyclictest0-21swapper20:15:540
160089910616653451,52715cyclictest0-21swapper22:25:320
160089910615853442,52716cyclictest0-21swapper21:06:390
160089910615753442,52715cyclictest0-21swapper23:19:270
160089910615153398,52753cyclictest0-21swapper19:46:060
160089910613153387,52744cyclictest0-21swapper19:10:060
160089910613053431,52699cyclictest0-21swapper21:16:220
160089910613053050,53078cyclictest0-21swapper23:51:270
160089910611553420,52695cyclictest0-21swapper19:18:480
160089910610453010,53092cyclictest0-21swapper23:39:430
160089910604752953,53092cyclictest0-21swapper22:19:300
160089910604552964,53079cyclictest0-21swapper22:41:260
160089910599653346,52650cyclictest0-21swapper00:00:090
160089910583653026,52807cyclictest1907-21snmpd22:02:550
160089910558253000,52579cyclictest15410-21runrttasks22:59:120
160089910530452955,52347cyclictest8393-21ssh23:34:020
160089910518853074,52109cyclictest0-21swapper21:59:540
160089910517253063,52107cyclictest0-21swapper23:06:540
160089910516553063,52100cyclictest0-21swapper23:12:050
160089910514153055,52084cyclictest0-21swapper22:47:580
160089910512953024,52103cyclictest0-21swapper23:48:360
160089910511753010,52105cyclictest0-21swapper20:47:140
160089910509052985,52103cyclictest0-21swapper00:35:490
160089910504652933,52111cyclictest11-21rcu_preempt21:46:100
160089910502552894,52126cyclictest0-21swapper00:18:240
160089910500652912,52092cyclictest0-21swapper22:33:140
16008995409726,247cyclictest25312-21kworker/u2:121:51:220
16008995354626,53520cyclictest0-21swapper20:10:530
16008995341326,53387cyclictest0-21swapper23:24:490
16008995307926,53053cyclictest0-21swapper19:22:490
16008995279126,52765cyclictest0-21swapper19:28:210
160089946472657,1982cyclictest1741-21hald20:05:520
160089924511040,1286cyclictest15376-21ssh21:29:560
160089924031091,1214cyclictest16144-21rm00:30:080
160089921221041,956cyclictest2065-21crond20:36:000
160089920601027,1012cyclictest0-21swapper21:36:580
16008991969962,982cyclictest10738-21sh22:07:370
160089919691068,901cyclictest0-21swapper19:51:470
160089919641065,834cyclictest134850irq/9-eth021:31:460
160089919431072,779cyclictest0-21swapper19:44:350
160089919341009,891cyclictest0-21swapper00:09:420
160089917411032,617cyclictest9-21ksoftirqd/020:53:050
16008991545758,775cyclictest10084-21sh21:21:330
16008991477726,739cyclictest14431-21ssh22:12:480
160089914701103,367cyclictest0-21swapper22:51:290
16008991467730,733cyclictest134850irq/9-eth023:56:180
16008991465702,759cyclictest0-21swapper22:24:210
16008991463688,765cyclictest0-21swapper00:25:360
160089914551092,363cyclictest0-21swapper21:10:300
160089914291083,346cyclictest0-21swapper22:35:550
160089914231034,389cyclictest0-21swapper21:41:190
160089913821060,322cyclictest0-21swapper23:25:090
16008991317620,695cyclictest0-21swapper23:41:540
160089912201020,200cyclictest0-21swapper00:22:360
16008991219598,619cyclictest0-21swapper23:04:030
15845258085,238sleep00-21swapper19:09:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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