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2025-12-07 - 12:35
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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 all highest latencies:
System rackcslot2.osadl.org (updated Sun Dec 07, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41242700,1sleep0134-21jbd2/sda1-822:46:530
1382226956,8sleep00-21swapper/019:05:040
1222026755,8sleep10-21swapper/119:01:431
319962450,0sleep10-21swapper/123:25:471
14156994312,9cyclictest7-21ksoftirqd/019:11:560
14156994236,1cyclictest7-21ksoftirqd/023:21:530
14156994139,1cyclictest7-21ksoftirqd/019:21:390
1415699377,1cyclictest91rcu_preempt23:51:520
14156993534,1cyclictest7-21ksoftirqd/023:56:540
14156993528,4cyclictest7-21ksoftirqd/000:30:580
14156993518,8cyclictest7-21ksoftirqd/023:13:250
14156993512,2cyclictest91rcu_preempt22:16:420
14156993511,3cyclictest91rcu_preempt21:56:570
1415699348,0cyclictest91rcu_preempt21:45:090
14156993413,2cyclictest91rcu_preempt22:33:050
14156993413,2cyclictest91rcu_preempt21:27:010
14156993411,5cyclictest91rcu_preempt00:17:490
14156993410,4cyclictest91rcu_preempt21:24:290
14156993322,6cyclictest7-21ksoftirqd/022:21:590
14157993210,4cyclictest0-21swapper/123:34:521
14156993210,4cyclictest0-21swapper/000:09:110
1415699319,2cyclictest91rcu_preempt19:47:010
14156993115,4cyclictest91rcu_preempt21:20:370
1415699305,4cyclictest91rcu_preempt23:38:190
14156993026,3cyclictest31704-21df19:51:530
14156993026,1cyclictest7-21ksoftirqd/023:11:260
14156993025,2cyclictest7-21ksoftirqd/022:57:000
14156993016,13cyclictest7912-21ls22:07:000
14156993010,19cyclictest0-21swapper/020:05:570
1415699299,1cyclictest7-21ksoftirqd/020:19:560
1415699296,1cyclictest7-21ksoftirqd/023:17:230
14156992926,2cyclictest13719-21/usr/sbin/munin20:27:020
14156992922,2cyclictest7-21ksoftirqd/021:11:530
2031722810,1sleep10-21swapper/123:53:221
14157992826,2cyclictest0-21swapper/121:40:071
14157992810,4cyclictest0-21swapper/122:46:511
14156992824,2cyclictest7-21ksoftirqd/000:04:470
14156992822,5cyclictest32636-21apache_accesses23:26:510
14156992814,9cyclictest15409-21apache222:13:450
14157992726,1cyclictest0-21swapper/100:13:511
14157992725,1cyclictest231ktimersoftd/120:01:511
14156992725,1cyclictest1260-21diskstats19:56:540
14156992724,2cyclictest6761-21ssh00:21:550
14156992724,2cyclictest27772-21diskmemload21:53:330
14156992724,2cyclictest20424-21cstates20:46:540
14156992724,2cyclictest15601-21ntp_states23:46:580
14156992724,2cyclictest15120-21/usr/sbin/munin19:06:580
14156992723,3cyclictest28034-21apache_processe21:06:540
14156992722,4cyclictest23979-21sort20:56:390
14156992722,2cyclictest7-21ksoftirqd/021:36:540
14156992711,2cyclictest7-21ksoftirqd/020:56:540
14157992621,4cyclictest15425-21apache219:12:361
14157992621,4cyclictest15409-21apache221:30:141
14157992610,0cyclictest0-21swapper/100:03:081
1415799260,23cyclictest0-21swapper/122:26:221
14156992624,2cyclictest0-21swapper/000:36:070
14156992624,1cyclictest11791-21ntp_states23:41:570
14156992623,2cyclictest5783-21ssh22:04:010
14156992623,2cyclictest26013-21pidof21:01:480
14156992623,2cyclictest15054-21pluginstate21:31:570
14156992623,1cyclictest7-21ksoftirqd/020:31:590
14157992510,11cyclictest0-21swapper/121:32:491
14156992523,1cyclictest32525-21memory00:11:570
14156992523,1cyclictest10975-21hddtemp_smartct20:21:540
14156992522,2cyclictest23962-21ssh22:28:570
14156992522,1cyclictest7-21ksoftirqd/022:41:330
14156992519,5cyclictest0-21swapper/021:46:530
14156992517,2cyclictest7-21ksoftirqd/022:42:520
14156992515,9cyclictest0-21swapper/023:02:170
1415799247,9cyclictest0-21swapper/100:06:581
1415799245,3cyclictest0-21swapper/123:13:021
14156992422,1cyclictest5090-21diskstats20:06:560
14156992421,2cyclictest81442sleep020:12:490
14156992421,2cyclictest61342sleep023:34:210
14156992421,2cyclictest25763-21apache_processe19:36:530
14156992417,4cyclictest81ktimersoftd/020:36:560
14157992317,5cyclictest15409-21apache200:33:181
14157992313,4cyclictest0-21swapper/122:06:571
1415799231,1cyclictest0-21swapper/100:17:181
14157992310,8cyclictest0-21swapper/122:51:591
14157992310,7cyclictest15409-21apache222:57:221
14157992310,7cyclictest0-21swapper/119:52:011
14157992310,2cyclictest0-21swapper/120:42:031
1415799230,21cyclictest0-21swapper/119:10:261
14156992320,2cyclictest7502-21expr22:51:520
14156992320,2cyclictest28276-21wc19:41:570
14156992313,3cyclictest81ktimersoftd/019:27:010
1415799225,12cyclictest0-21swapper/121:06:551
1415799225,10cyclictest0-21swapper/119:36:531
14157992220,1cyclictest15409-21apache223:09:011
14157992210,8cyclictest0-21swapper/123:48:311
14157992210,7cyclictest0-21swapper/120:26:411
14157992210,6cyclictest0-21swapper/100:00:131
14157992210,5cyclictest0-21swapper/123:37:181
14156992219,2cyclictest0-21swapper/020:41:530
14156992217,4cyclictest0-21swapper/019:21:530
1415799217,9cyclictest0-21swapper/119:21:521
14157992120,0cyclictest26249-21smartctl21:47:011
14157992119,1cyclictest0-21swapper/121:56:571
14157992117,2cyclictest15409-21apache222:13:411
14157992112,2cyclictest0-21swapper/121:41:511
14157992111,6cyclictest0-21swapper/121:13:211
14157992110,4cyclictest0-21swapper/120:54:551
1415799208,6cyclictest0-21swapper/122:01:531
1415799207,9cyclictest0-21swapper/122:16:541
1415799201,9cyclictest17937-21perf23:06:391
14157992018,1cyclictest106250irq/115-eth2-tx19:44:501
14157992010,7cyclictest0-21swapper/122:36:541
14157992010,5cyclictest0-21swapper/119:31:521
14157992010,3cyclictest0-21swapper/120:46:531
14157992010,3cyclictest0-21swapper/100:28:191
1415799194,8cyclictest0-21swapper/119:56:591
1415799194,11cyclictest0-21swapper/120:06:591
14157991911,4cyclictest0-21swapper/120:16:521
1415799191,11cyclictest0-21swapper/120:11:571
14157991910,6cyclictest0-21swapper/120:58:401
14157991910,5cyclictest0-21swapper/121:56:281
14157991910,4cyclictest0-21swapper/123:17:511
14157991910,1cyclictest0-21swapper/119:46:521
1415699194,10cyclictest0-21swapper/019:31:560
1415799183,3cyclictest27772-21diskmemload22:41:511
14157991816,1cyclictest22541-21ls19:26:571
14157991812,3cyclictest0-21swapper/122:27:251
14157991810,3cyclictest0-21swapper/123:41:521
14157991810,3cyclictest0-21swapper/120:21:521
14157991810,2cyclictest0-21swapper/123:26:531
14157991810,2cyclictest0-21swapper/120:36:551
1415799180,9cyclictest1111-21runrttasks00:26:091
1415799171,5cyclictest0-21swapper/121:22:001
14157991710,1cyclictest0-21swapper/122:31:581
1415799163,9cyclictest15131-21ls20:31:561
1415799162,5cyclictest3064-21cron21:21:341
1415799159,2cyclictest1111-21runrttasks21:03:461
14157991510,2cyclictest0-21swapper/119:16:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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