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2025-12-10 - 05:31
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Wed Dec 10, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3005622120,1sleep00-21swapper/019:02:000
3058427057,8sleep10-21swapper/119:03:191
31086993910,28cyclictest0-21swapper/023:35:270
31087993310,3cyclictest0-21swapper/121:10:271
31086993310,17cyclictest0-21swapper/019:42:450
31086993014,6cyclictest7-21ksoftirqd/021:28:490
31086993010,0cyclictest0-21swapper/021:10:420
31087992928,1cyclictest0-21swapper/100:21:071
3108799280,23cyclictest0-21swapper/122:12:031
3108699287,20cyclictest0-21swapper/019:07:120
31086992828,0cyclictest0-21swapper/000:26:530
3108699270,25cyclictest0-21swapper/020:05:480
31087992624,1cyclictest0-21swapper/122:31:471
31087992612,11cyclictest97750irq/106-eth1-rx23:58:031
31086992626,0cyclictest0-21swapper/000:33:090
31087992523,1cyclictest18337-21apache200:26:581
3108799252,22cyclictest0-21swapper/122:18:051
31087992514,5cyclictest31084-21cyclictest22:29:241
31086992521,3cyclictest18337-21apache222:18:050
1545522510,0sleep00-21swapper/022:39:380
3108699241,4cyclictest12281-21diskmemload23:24:400
31086992412,5cyclictest0-21swapper/021:58:550
3108699240,23cyclictest27152-21kworker/0:123:13:190
3108799236,11cyclictest0-21swapper/120:01:531
31087992323,0cyclictest0-21swapper/119:31:211
3108799231,5cyclictest0-21swapper/123:23:041
3108699231,4cyclictest0-21swapper/022:25:250
31086992311,8cyclictest18360-21apache200:23:400
31086992311,3cyclictest0-21swapper/019:26:500
31086992310,5cyclictest0-21swapper/022:26:440
3108799225,10cyclictest0-21swapper/119:56:521
3108799223,18cyclictest30214-21snmpd00:04:031
31087992210,0cyclictest0-21swapper/123:39:201
3108699228,6cyclictest636-21nscd21:26:380
31086992222,0cyclictest0-21swapper/022:10:270
31086992219,2cyclictest18337-21apache223:55:150
31086992215,5cyclictest18337-21apache200:00:400
31086992210,9cyclictest0-21swapper/022:15:100
31086992210,8cyclictest0-21swapper/021:55:280
31086992210,4cyclictest0-21swapper/022:01:420
31086992210,2cyclictest0-21swapper/022:43:490
3108699220,1cyclictest25723-21kworker/u4:022:58:100
3108699220,11cyclictest0-21swapper/020:21:540
31087992121,0cyclictest0-21swapper/122:53:451
31087992119,1cyclictest15210-21ssh00:10:411
31087992118,0cyclictest18337-21apache220:12:041
31087992116,4cyclictest18360-21apache223:41:451
3108799211,3cyclictest0-21swapper/121:23:451
31087992110,6cyclictest0-21swapper/122:00:541
31087992110,10cyclictest0-21swapper/122:11:061
3108699218,6cyclictest0-21swapper/000:06:570
31086992116,4cyclictest18337-21apache223:07:420
31086992116,3cyclictest0-21swapper/021:32:560
31086992112,7cyclictest18337-21apache200:16:440
2155322110,0sleep10-21swapper/122:02:131
1139922110,0sleep00-21swapper/022:33:230
31087992018,1cyclictest31512-21ssh23:46:531
31087992018,1cyclictest29458-21/usr/sbin/munin20:26:561
31087992013,3cyclictest0-21swapper/122:47:291
31087992012,6cyclictest0-21swapper/123:06:521
31087992012,3cyclictest1111-21runrttasks21:37:381
31087992012,3cyclictest1111-21runrttasks21:37:381
31087992011,6cyclictest97750irq/106-eth1-rx21:19:161
31087992011,2cyclictest231ktimersoftd/120:51:531
31087992010,6cyclictest0-21swapper/123:16:161
31087992010,4cyclictest0-21swapper/122:44:581
3108799200,12cyclictest0-21swapper/100:23:491
3108699206,9cyclictest0-21swapper/023:36:590
31086992019,1cyclictest0-21swapper/021:16:590
31086992015,3cyclictest31084-21cyclictest20:37:480
31086992011,3cyclictest0-21swapper/021:46:530
31086992010,6cyclictest0-21swapper/023:17:200
31086992010,6cyclictest0-21swapper/020:31:490
31086992010,2cyclictest0-21swapper/019:31:560
3216721910,0sleep10-21swapper/121:32:041
3108799196,8cyclictest0-21swapper/100:32:091
31087991910,2cyclictest0-21swapper/119:25:451
3108699194,9cyclictest0-21swapper/019:51:530
3108699194,6cyclictest12068-21sort19:41:390
31086991919,0cyclictest0-21swapper/020:11:040
31086991918,0cyclictest0-21swapper/023:41:530
31086991916,2cyclictest0-21swapper/021:40:080
31086991916,2cyclictest0-21swapper/021:40:080
31086991915,3cyclictest0-21swapper/020:26:510
31086991915,2cyclictest0-21swapper/023:29:070
31086991913,3cyclictest0-21swapper/022:52:010
31086991910,3cyclictest0-21swapper/022:46:500
174921910,0sleep10-21swapper/120:36:581
1186721910,0sleep10-21swapper/123:20:021
3108799184,12cyclictest0-21swapper/121:41:561
3108799183,6cyclictest0-21swapper/100:11:531
31087991818,0cyclictest28229-21ls21:26:581
31087991815,2cyclictest231ktimersoftd/123:02:111
31087991810,7cyclictest0-21swapper/121:48:551
31087991810,4cyclictest0-21swapper/123:31:551
31087991810,4cyclictest0-21swapper/122:39:181
31087991810,3cyclictest0-21swapper/121:11:521
31087991810,3cyclictest0-21swapper/120:56:511
3108799180,14cyclictest0-21swapper/119:41:561
3108699186,6cyclictest0-21swapper/023:01:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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