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2026-06-26 - 21:40
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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 Fri Jun 26, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3174027154,8sleep10-21swapper/107:05:061
3165826655,7sleep00-21swapper/007:04:140
3225799347,5cyclictest91rcu_preempt11:35:521
3225799337,1cyclictest91rcu_preempt09:40:421
3225799328,3cyclictest91rcu_preempt09:08:481
32257993012,4cyclictest91rcu_preempt11:40:291
32257993011,7cyclictest91rcu_preempt10:06:071
3225799286,3cyclictest91rcu_preempt07:33:371
32257992825,2cyclictest19376-21apache_accesses07:58:451
32257992825,2cyclictest13739-21diskmemload10:13:511
32257992824,3cyclictest24-21ksoftirqd/109:50:261
3225799280,22cyclictest0-21swapper/110:26:351
32256992810,4cyclictest0-21swapper/008:08:520
3225799274,22cyclictest0-21swapper/109:38:331
32257992724,2cyclictest847-21apache_volume11:53:451
32257992723,3cyclictest2454-21basename10:23:351
32257992719,7cyclictest19849-21ssh09:15:101
32257992714,8cyclictest231ktimersoftd/107:28:571
32257992714,7cyclictest24-21ksoftirqd/111:22:121
32257992626,0cyclictest0-21swapper/108:33:011
32257992624,1cyclictest25280-21df10:08:471
32257992623,2cyclictest546-21df_inode08:33:471
32257992623,2cyclictest19666-21ntp_states12:18:521
32257992623,2cyclictest13739-21diskmemload12:09:551
32257992623,2cyclictest0-21swapper/108:13:481
32257992621,2cyclictest231ktimersoftd/107:43:481
32257992619,4cyclictest24-21ksoftirqd/110:47:201
32257992615,9cyclictest231ktimersoftd/111:12:111
32256992610,11cyclictest0-21swapper/012:12:120
32257992523,2cyclictest0-21swapper/109:18:461
32257992522,2cyclictest8115-21ssh11:15:431
32257992522,2cyclictest8071-21apache_accesses08:53:451
32257992522,2cyclictest28657-21sleep12:32:321
32257992522,2cyclictest28397-21ssh11:44:341
32257992521,3cyclictest8059-21ssh10:30:341
32257992521,3cyclictest22506-21apache_accesses12:23:451
32257992521,3cyclictest19088-21ssh11:32:441
32257992521,3cyclictest12892-21grep07:38:551
32257992520,2cyclictest24-21ksoftirqd/107:08:531
32257992518,2cyclictest24-21ksoftirqd/111:02:381
32257992515,4cyclictest15689-21memory12:13:501
32256992510,14cyclictest0-21swapper/007:30:420
3225799249,12cyclictest21266-21cat10:48:541
32257992422,2cyclictest9365-21ssh12:04:291
32257992422,2cyclictest0-21swapper/112:33:411
32257992422,1cyclictest12732-21apache_volume10:38:461
32257992421,3cyclictest14553-21hddtemp_smartct09:53:491
32257992421,2cyclictest5653-21apache_accesses07:23:451
32257992421,2cyclictest30238-21users08:23:571
32257992421,2cyclictest26887-21ssh09:24:411
32257992421,2cyclictest13739-21diskmemload10:38:081
32257992420,3cyclictest2551-21ntpq07:13:561
32257992418,5cyclictest16915-21chrt07:49:521
3225799241,22cyclictest0-21swapper/109:32:161
3225799241,16cyclictest28403-21kworker/u4:009:46:531
3225699243,20cyclictest0-21swapper/012:21:530
32256992414,5cyclictest167-21systemd-journal11:59:400
32256992410,4cyclictest0-21swapper/011:03:470
32257992321,2cyclictest0-21swapper/108:58:511
32257992320,2cyclictest6606-21ssh12:01:131
32257992320,2cyclictest25342-21ssh10:54:371
32257992320,2cyclictest13739-21diskmemload11:05:561
32257992320,2cyclictest0-21swapper/108:43:561
3225699234,11cyclictest0-21swapper/009:08:460
32256992320,2cyclictest9714-21apache211:17:330
32256992319,4cyclictest744-21snmpd10:16:310
32256992315,7cyclictest9714-21apache210:13:160
32256992311,2cyclictest0-21swapper/007:38:520
32257992220,2cyclictest0-21swapper/110:03:241
32257992220,2cyclictest0-21swapper/109:03:521
32257992220,2cyclictest0-21swapper/108:38:531
32257992219,2cyclictest18083-21memory07:53:521
32257992219,2cyclictest0-21swapper/111:24:561
32257992218,3cyclictest7408-21unixbench_singl08:48:551
3225699222,5cyclictest0-21swapper/009:39:330
32256992210,6cyclictest0-21swapper/010:23:450
32256992210,3cyclictest0-21swapper/008:01:400
32256992210,0cyclictest0-21swapper/011:20:470
3225699220,21cyclictest26840-21egrep11:43:460
3225699220,13cyclictest100250irq/107-eth1-rx10:47:370
32257992118,2cyclictest22104-21cut08:03:531
32257992118,2cyclictest0-21swapper/108:08:521
32257992117,3cyclictest0-21swapper/108:18:541
32257992113,7cyclictest0-21swapper/107:18:511
32256992116,2cyclictest81ktimersoftd/010:58:510
3225699211,18cyclictest0-21swapper/009:58:550
32256992110,6cyclictest0-21swapper/010:33:550
3225699203,9cyclictest0-21swapper/008:28:460
3225699202,10cyclictest0-21swapper/009:33:440
32256992020,0cyclictest9701-21apache209:18:480
32256992016,3cyclictest9714-21apache211:50:290
32256992016,1cyclictest0-21swapper/010:04:160
32256992010,5cyclictest0-21swapper/008:23:520
32256992010,4cyclictest0-21swapper/007:34:310
32256992010,3cyclictest0-21swapper/012:23:530
32256992010,2cyclictest0-21swapper/012:07:590
32256992010,1cyclictest0-21swapper/012:33:460
3225799192,11cyclictest0-21swapper/111:48:521
3225699194,7cyclictest0-21swapper/007:18:430
3225699193,8cyclictest0-21swapper/007:13:500
3225699192,9cyclictest0-21swapper/011:28:510
32256991917,1cyclictest81ktimersoftd/011:23:510
32256991916,2cyclictest9714-21apache209:14:290
32256991911,5cyclictest0-21swapper/008:33:520
32256991910,6cyclictest0-21swapper/010:31:390
32256991910,5cyclictest0-21swapper/009:23:500
32256991910,1cyclictest0-21swapper/007:43:460
3225699190,1cyclictest21286-21apache_accesses08:03:460
3225699186,5cyclictest0-21swapper/008:48:490
3225699184,8cyclictest0-21swapper/011:08:560
32256991817,1cyclictest81ktimersoftd/010:19:370
3225699181,6cyclictest0-21swapper/008:58:540
32256991813,3cyclictest9701-21apache211:54:550
32256991810,7cyclictest9589-21sshd09:45:560
32256991810,3cyclictest0-21swapper/010:48:550
32256991810,2cyclictest0-21swapper/012:14:090
32256991810,1cyclictest0-21swapper/011:33:470
32256991810,1cyclictest0-21swapper/010:41:100
32256991810,1cyclictest0-21swapper/009:52:280
2533821810,0sleep00-21swapper/011:40:580
1647821810,0sleep00-21swapper/009:56:420
3225699174,8cyclictest1655-21munin-run07:13:350
3225699172,8cyclictest0-21swapper/008:38:510
32256991711,4cyclictest7235-21sshd07:26:560
32256991711,4cyclictest23941-21ssh10:53:460
32256991711,1cyclictest12102-21cstates09:03:450
32256991710,3cyclictest0-21swapper/008:43:470
32256991710,2cyclictest0-21swapper/008:18:480
32256991710,0cyclictest0-21swapper/008:58:000
3225699163,9cyclictest0-21swapper/007:48:450
32256991610,3cyclictest0-21swapper/012:28:450
3225699160,10cyclictest0-21swapper/008:13:460
3225699154,5cyclictest0-21swapper/007:53:530
32256991510,1cyclictest0-21swapper/009:28:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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