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2025-06-13 - 00:23
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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 Thu Jun 12, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
42327732,40sleep00-21swapper/007:07:230
3268826854,9sleep10-21swapper/107:05:241
292542650,0sleep10-21swapper/111:26:221
132312650,0sleep00-21swapper/012:31:190
35242630,0sleep10-21swapper/110:53:171
697993531,3cyclictest24912-21/usr/sbin/munin12:03:161
697993431,2cyclictest4989-21uname09:33:211
697993430,3cyclictest17611-21ssh09:49:001
697993430,3cyclictest1315-21ssh09:28:281
697993429,3cyclictest28956-21rm10:43:451
697993425,1cyclictest0-21swapper/110:30:421
697993331,2cyclictest4086-21python12:18:201
697993331,1cyclictest27252-21users08:13:211
697993330,2cyclictest6864-21ssh10:58:091
697993330,2cyclictest19784-21df10:33:161
697993330,2cyclictest15262-21ntp_states07:43:231
697993330,1cyclictest24-21ksoftirqd/111:22:561
697993329,3cyclictest0-21swapper/108:40:431
697993231,0cyclictest0-21swapper/108:36:421
697993230,2cyclictest0-21swapper/109:47:191
697993229,2cyclictest5471-21hddtemp_smartct08:43:151
697993229,2cyclictest22549-21if_err_eth008:03:151
697993229,2cyclictest16575-21ssh11:08:561
697993229,2cyclictest14680-21diskmemload12:14:291
697993229,2cyclictest14680-21diskmemload11:35:411
697993229,2cyclictest12313-21chrt11:47:131
697993228,3cyclictest27913-21apache_volume08:18:121
697993228,3cyclictest24800-21/usr/sbin/munin08:08:191
697993228,3cyclictest12587-21pidof09:01:221
697993228,3cyclictest11192-21ssh09:42:061
697993222,9cyclictest1188-21ssh11:32:521
697993217,5cyclictest91rcu_preempt12:27:351
697993217,14cyclictest8104-21sed10:18:161
697993210,12cyclictest0-21swapper/110:41:151
696993232,0cyclictest0-21swapper/007:20:490
697993129,2cyclictest21900-21ssh11:58:371
697993128,2cyclictest3566-21/usr/sbin/munin10:13:131
697993128,2cyclictest30843-21python08:23:201
697993128,2cyclictest19531-21/usr/sbin/munin09:13:151
697993128,2cyclictest14356-21ssh11:07:141
697993127,3cyclictest9965-21chrt07:30:371
697993127,3cyclictest19976-21apache_accesses09:53:141
697993123,7cyclictest2536-21ssh10:52:351
697993121,9cyclictest16824-21fschecks_time11:53:141
697993121,9cyclictest14928-21apache_accesses09:08:121
697993120,10cyclictest0-21swapper/111:15:431
697993028,2cyclictest14680-21diskmemload09:20:301
697993028,2cyclictest0-21swapper/112:28:161
697993028,2cyclictest0-21swapper/110:03:371
697993027,2cyclictest0-21swapper/111:38:121
697993015,11cyclictest0-21swapper/109:58:131
697992927,2cyclictest0-21swapper/107:53:211
697992927,2cyclictest0-21swapper/107:33:391
697992927,2cyclictest0-21swapper/107:23:181
697992926,2cyclictest28060-21expr12:08:121
697992926,2cyclictest1769-21python07:08:191
697992926,2cyclictest12999-21ssh10:23:411
697992925,3cyclictest13464-21irqstats09:03:171
697992924,4cyclictest32510-21ntpq08:28:181
697992924,4cyclictest14269-21apache_volume12:33:121
697992924,3cyclictest9233-21df_inode08:53:141
697992914,6cyclictest14271-21ssh11:48:261
69699290,6cyclictest3030-21ssh10:12:430
697992826,2cyclictest0-21swapper/109:23:191
697992826,1cyclictest5625-21python07:18:201
697992826,1cyclictest31827-21apache_processe10:08:131
697992824,3cyclictest8120-21python08:48:211
697992724,2cyclictest21010-21ntp_states07:58:181
697992720,6cyclictest16837-21/usr/sbin/munin07:48:151
696992710,10cyclictest0-21swapper/008:59:100
697992624,2cyclictest0-21swapper/107:16:191
69699257,12cyclictest0-21swapper/008:03:250
696992510,2cyclictest0-21swapper/012:20:060
69699243,16cyclictest19560-21rm10:33:140
696992410,4cyclictest0-21swapper/009:20:010
697992321,1cyclictest13202-21memory07:38:151
69699235,12cyclictest0-21swapper/011:53:120
696992321,1cyclictest10545-21apache209:27:580
696992319,3cyclictest10545-21apache210:42:140
696992316,4cyclictest18192-21taskset09:11:470
696992310,9cyclictest0-21swapper/010:07:050
69699230,1cyclictest28013-21cut10:43:170
696992222,0cyclictest0-21swapper/011:47:370
696992220,1cyclictest717-21snmpd08:34:320
696992217,3cyclictest10545-21apache211:33:360
696992214,5cyclictest0-21swapper/010:48:110
696992210,7cyclictest0-21swapper/011:12:390
69699215,13cyclictest0-21swapper/011:58:120
69699214,8cyclictest0-21swapper/007:08:110
69699214,7cyclictest0-21swapper/007:28:120
69699212,7cyclictest15955-21/usr/sbin/munin09:48:120
696992116,5cyclictest10545-21apache210:53:080
696992111,6cyclictest0-21swapper/011:24:570
696992110,9cyclictest0-21swapper/011:06:220
696992110,8cyclictest0-21swapper/009:44:290
69699207,8cyclictest0-21swapper/012:13:210
696992016,4cyclictest10545-21apache211:22:520
696992010,5cyclictest0-21swapper/010:14:110
696992010,5cyclictest0-21swapper/008:09:110
696992010,5cyclictest0-21swapper/007:58:210
696992010,5cyclictest0-21swapper/007:47:020
696992010,4cyclictest0-21swapper/007:33:140
696992010,2cyclictest3746-21cron09:33:010
877421910,0sleep00-21swapper/008:52:170
69699197,11cyclictest0-21swapper/012:23:110
69699194,7cyclictest20075-21munin-run07:58:000
69699193,9cyclictest0-21swapper/007:23:150
69699193,8cyclictest0-21swapper/008:23:170
69699193,11cyclictest0-21swapper/008:13:060
69699192,9cyclictest0-21swapper/007:48:120
696991919,0cyclictest0-21swapper/011:30:580
696991916,2cyclictest10567-21apache211:02:220
696991911,3cyclictest0-21swapper/010:18:180
696991910,4cyclictest0-21swapper/011:14:150
696991910,4cyclictest0-21swapper/009:03:170
696991910,2cyclictest0-21swapper/010:01:570
69699190,6cyclictest606-21systemd-logind09:13:460
157632190,0sleep00-21swapper/010:28:160
69699184,8cyclictest0-21swapper/008:53:140
69699183,8cyclictest28102-21ssh12:08:120
69699182,8cyclictest14258-21/usr/sbin/munin12:33:130
69699181,8cyclictest0-21swapper/008:28:120
696991816,1cyclictest81ktimersoftd/010:23:300
696991810,6cyclictest0-21swapper/012:03:530
696991810,5cyclictest0-21swapper/011:38:170
696991810,1cyclictest0-21swapper/009:36:140
69699180,16cyclictest0-21swapper/011:48:190
2945721810,0sleep00-21swapper/008:21:010
69699173,8cyclictest6720-21kworker/u4:208:45:540
69699173,7cyclictest0-21swapper/008:38:180
69699171,9cyclictest0-21swapper/007:38:120
696991711,3cyclictest606-21systemd-logind09:53:080
696991612,1cyclictest97850irq/107-eth1-rx09:39:460
69699151,6cyclictest2673-21/usr/sbin/munin07:13:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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