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2025-12-03 - 07:37
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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 rackcslot2.osadl.org (updated Wed Dec 03, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2844927157,9sleep10-21swapper/119:05:041
2817527057,8sleep00-21swapper/019:02:140
28784993410,22cyclictest0-21swapper/120:22:361
28784993017,2cyclictest28781-21cyclictest23:21:561
28783993010,5cyclictest0-21swapper/023:41:570
2878499291,25cyclictest6996-21kworker/1:023:31:061
28783992922,4cyclictest14089-21apache221:17:030
28783992821,2cyclictest457-21sh23:51:130
28783992810,2cyclictest0-21swapper/021:30:460
28783992523,1cyclictest14089-21apache220:31:540
28783992512,7cyclictest9978-21diskmemload00:09:030
2878399250,1cyclictest13925-21ssh21:55:270
28784992422,1cyclictest0-21swapper/122:22:211
28783992410,7cyclictest0-21swapper/022:38:220
2878499233,19cyclictest0-21swapper/122:48:191
28784992320,2cyclictest3534-21rm23:55:031
28784992320,2cyclictest18540-21snmpd19:33:111
28783992323,0cyclictest0-21swapper/023:36:440
2878399232,1cyclictest0-21swapper/022:26:090
28783992313,8cyclictest14089-21apache200:22:030
2878399231,2cyclictest0-21swapper/022:52:110
28783992311,5cyclictest0-21swapper/000:27:380
2878399230,4cyclictest0-21swapper/000:34:570
2878499224,14cyclictest0-21swapper/122:06:541
28784992217,3cyclictest28781-21cyclictest21:13:581
28784992210,4cyclictest0-21swapper/121:41:571
28784992210,4cyclictest0-21swapper/121:39:481
28784992210,4cyclictest0-21swapper/120:26:581
28784992210,0cyclictest0-21swapper/122:02:431
2878499220,12cyclictest11628-21perf19:46:411
28783992216,4cyclictest19815-21ssh22:47:040
28783992213,5cyclictest14089-21apache220:25:070
2878399221,20cyclictest0-21swapper/023:09:370
28783992210,8cyclictest0-21swapper/021:33:250
2878499215,10cyclictest0-21swapper/123:46:591
2878499214,11cyclictest32488-21latency_hist19:16:411
28784992121,0cyclictest231ktimersoftd/100:34:091
28784992110,8cyclictest0-21swapper/122:37:021
28784992110,5cyclictest0-21swapper/121:20:371
28784992110,2cyclictest0-21swapper/120:12:021
28784992110,10cyclictest0-21swapper/121:26:181
2878499210,20cyclictest0-21swapper/123:13:171
2878499210,10cyclictest9511-21ssh23:17:541
28783992113,3cyclictest28781-21cyclictest19:26:530
28783992110,7cyclictest25094-21cron20:21:410
2878399210,3cyclictest0-21swapper/022:15:470
2878399210,1cyclictest0-21swapper/021:10:120
601122010,0sleep10-21swapper/123:57:361
2878499206,11cyclictest0-21swapper/122:26:571
2878499202,17cyclictest0-21swapper/123:02:031
2878499201,9cyclictest0-21swapper/121:52:041
28784992012,5cyclictest593-21avahi-daemon23:08:461
28784992012,3cyclictest0-21swapper/120:31:561
2878499201,18cyclictest9978-21diskmemload00:05:371
28784992010,3cyclictest0-21swapper/123:36:591
28784992010,2cyclictest0-21swapper/100:22:521
2878499200,9cyclictest0-21swapper/120:57:001
2878399202,1cyclictest0-21swapper/000:15:290
28783992020,0cyclictest0-21swapper/023:56:540
28783992010,6cyclictest0-21swapper/023:19:200
28783992010,5cyclictest0-21swapper/022:26:570
28783992010,4cyclictest0-21swapper/020:49:030
28783992010,3cyclictest0-21swapper/021:47:540
28783992010,1cyclictest0-21swapper/023:28:410
2878399200,4cyclictest0-21swapper/023:31:510
2878399200,4cyclictest0-21swapper/000:17:440
2878399200,0cyclictest0-21swapper/023:53:000
2875422010,0sleep00-21swapper/020:30:020
223022010,0sleep00-21swapper/021:38:550
2878499196,8cyclictest9978-21diskmemload23:42:561
2878499194,5cyclictest0-21swapper/122:16:531
2878499192,13cyclictest0-21swapper/119:06:561
28784991917,1cyclictest18234-21df_inode00:16:541
28784991914,1cyclictest17545-21rm22:00:321
2878499191,18cyclictest0-21swapper/100:07:501
28784991910,6cyclictest0-21swapper/119:56:551
28784991910,6cyclictest0-21swapper/100:16:081
28784991910,5cyclictest0-21swapper/120:42:021
28784991910,3cyclictest0-21swapper/122:42:161
28784991910,3cyclictest0-21swapper/121:01:571
28784991910,2cyclictest0-21swapper/122:56:561
2878499190,14cyclictest0-21swapper/100:28:451
2878399197,5cyclictest0-21swapper/022:06:540
2878399192,3cyclictest0-21swapper/021:15:400
28783991910,4cyclictest0-21swapper/022:05:330
28783991910,3cyclictest0-21swapper/021:42:480
28783991910,3cyclictest0-21swapper/019:47:040
2878399190,3cyclictest0-21swapper/023:16:010
2878399190,2cyclictest0-21swapper/000:02:040
2878399190,10cyclictest14839-21apache_volume22:41:530
1331721910,0sleep10-21swapper/119:49:391
557121810,0sleep10-21swapper/119:28:541
2878499185,6cyclictest0-21swapper/120:07:021
2878499184,8cyclictest0-21swapper/122:31:561
2878499183,8cyclictest0-21swapper/122:51:591
2878499182,8cyclictest0-21swapper/119:36:591
2878499182,8cyclictest0-21swapper/119:19:011
28784991810,4cyclictest0-21swapper/121:46:541
28784991810,4cyclictest0-21swapper/120:52:271
28784991810,4cyclictest0-21swapper/120:02:011
2878499180,8cyclictest32257-21cron21:36:411
2878499180,10cyclictest14049-21apache222:11:541
2878399182,1cyclictest0-21swapper/023:22:020
28783991811,1cyclictest0-21swapper/020:56:570
28783991810,4cyclictest0-21swapper/022:58:420
28783991810,4cyclictest0-21swapper/021:01:540
28783991810,2cyclictest0-21swapper/020:42:030
28783991810,1cyclictest0-21swapper/022:19:110
28783991810,1cyclictest0-21swapper/021:22:390
2878399180,4cyclictest0-21swapper/021:57:420
1208921810,0sleep10-21swapper/121:08:091
28784991716,1cyclictest26514-21ssh21:27:171
28784991710,5cyclictest0-21swapper/119:53:281
28784991710,3cyclictest0-21swapper/123:31:521
28784991710,3cyclictest0-21swapper/120:36:561
2878399175,7cyclictest0-21swapper/020:06:580
2878399173,8cyclictest0-21swapper/019:11:540
2878399172,6cyclictest0-21swapper/019:41:550
2878399171,9cyclictest0-21swapper/019:36:540
28783991710,3cyclictest0-21swapper/020:01:560
28783991710,2cyclictest0-21swapper/023:02:250
28783991710,2cyclictest0-21swapper/019:16:570
2878399170,3cyclictest0-21swapper/022:31:460
2878499164,11cyclictest0-21swapper/119:21:531
2878499161,10cyclictest0-21swapper/120:46:571
2878399164,9cyclictest0-21swapper/019:31:540
2878399164,8cyclictest0-21swapper/020:36:590
28783991612,1cyclictest28781-21cyclictest19:21:560
2878499150,6cyclictest24090-21/usr/sbin/munin20:16:591
2878399152,8cyclictest0-21swapper/020:52:010
2878399152,6cyclictest0-21swapper/019:06:540
28783991510,2cyclictest0-21swapper/019:51:550
2878399150,6cyclictest22100-21tr20:11:590
2878399143,5cyclictest16352-21ls19:56:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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