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2025-09-19 - 00:54
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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 Sep 18, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2190421350,0sleep021905-21dump-pmu-power08:47:130
1551027361,7sleep10-21swapper/107:06:341
165542720,1sleep00-21swapper/010:14:310
1527626855,8sleep00-21swapper/007:04:060
108802650,1sleep00-21swapper/009:23:280
1575799364,0cyclictest91rcu_preempt11:51:291
15757993534,0cyclictest97950irq/108-eth1-tx09:13:221
1575799326,3cyclictest91rcu_preempt11:44:351
15757993211,2cyclictest91rcu_preempt09:27:101
15756993231,1cyclictest0-21swapper/008:50:180
1575799316,3cyclictest91rcu_preempt10:57:221
15757993110,2cyclictest91rcu_preempt11:11:331
15756993130,1cyclictest0-21swapper/008:35:000
15757993028,2cyclictest0-21swapper/109:02:341
15757993024,5cyclictest24-21ksoftirqd/111:56:511
15757993017,3cyclictest91rcu_preempt09:29:181
15757992929,0cyclictest24-21ksoftirqd/112:27:261
1575799292,1cyclictest91rcu_preempt10:15:041
15757992921,2cyclictest24-21ksoftirqd/111:17:331
15757992920,5cyclictest3941-21ssh12:15:031
1575799291,5cyclictest91rcu_preempt10:17:551
1575799291,4cyclictest91rcu_preempt07:27:311
1575799290,6cyclictest0-21swapper/110:07:241
15756992926,2cyclictest0-21swapper/010:41:560
1575699290,4cyclictest0-21swapper/012:32:300
1575799288,2cyclictest91rcu_preempt11:32:241
15757992828,0cyclictest24-21ksoftirqd/112:02:011
15757992825,2cyclictest4563-21pidof08:01:341
15757992822,2cyclictest24-21ksoftirqd/112:02:501
15757992810,4cyclictest91rcu_preempt11:16:101
15756992810,13cyclictest0-21swapper/011:19:500
1575699280,3cyclictest23192-21idleruntime-cro11:57:120
1575699280,25cyclictest0-21swapper/010:19:120
15757992726,1cyclictest0-21swapper/110:55:051
15757992725,2cyclictest0-21swapper/110:28:461
15757992721,5cyclictest25605-21apache210:01:171
15757992721,2cyclictest91rcu_preempt08:22:281
15757992717,7cyclictest24-21ksoftirqd/109:45:191
15756992720,4cyclictest25605-21apache211:38:140
1575699271,21cyclictest0-21swapper/011:10:380
15757992626,0cyclictest0-21swapper/110:33:511
15757992624,1cyclictest24-21ksoftirqd/109:51:301
15757992612,7cyclictest231ktimersoftd/108:27:281
1575799255,5cyclictest24-21ksoftirqd/111:37:261
15757992524,1cyclictest32552-21ls11:22:371
15757992521,4cyclictest0-21swapper/110:44:461
15757992521,3cyclictest20585-21cat11:07:131
15756992510,2cyclictest0-21swapper/010:07:500
15756992510,10cyclictest0-21swapper/007:07:320
1575799248,2cyclictest91rcu_preempt08:20:351
1575799247,11cyclictest0-21swapper/109:34:131
15757992421,2cyclictest31096-21needreboot12:07:291
15757992420,3cyclictest8959-21hddtemp_smartct12:22:281
15757992420,3cyclictest19001-21grep08:37:311
15756992419,3cyclictest25594-21apache210:02:020
15756992416,4cyclictest636-21nscd11:24:130
15756992415,5cyclictest25605-21apache211:16:100
1575799235,14cyclictest0-21swapper/110:47:271
15757992321,2cyclictest22756-21ssh09:39:171
15757992321,1cyclictest20260-21memory07:17:291
15757992320,2cyclictest27600-21apache_volume07:37:231
15757992320,2cyclictest26124-21/usr/sbin/munin07:32:281
15757992320,2cyclictest26124-21/usr/sbin/munin07:32:281
15757992319,0cyclictest24-21ksoftirqd/109:21:141
15757992316,6cyclictest0-21swapper/109:55:361
15757992312,1cyclictest91rcu_preempt11:29:011
15757992310,11cyclictest0-21swapper/110:37:181
1575799230,6cyclictest0-21swapper/108:42:261
1575699234,9cyclictest0-21swapper/010:32:280
1575699234,12cyclictest0-21swapper/009:07:250
15756992310,5cyclictest0-21swapper/007:52:280
15756992310,2cyclictest0-21swapper/010:02:200
1575799229,8cyclictest231ktimersoftd/108:02:311
1575799223,15cyclictest0-21swapper/112:20:301
15757992218,3cyclictest0-21swapper/110:22:321
15757992215,4cyclictest231ktimersoftd/108:52:251
15757992210,10cyclictest0-21swapper/109:07:231
1575699223,4cyclictest12015-21kworker/u4:011:49:110
15756992220,1cyclictest5848-21memory12:17:330
15756992216,4cyclictest25594-21apache208:29:120
15756992216,3cyclictest14983-21munin-node12:09:260
1575699221,16cyclictest0-21swapper/009:18:340
1575799218,10cyclictest0-21swapper/108:47:261
1575799213,13cyclictest0-21swapper/112:32:301
15757992121,0cyclictest0-21swapper/107:45:411
15757992119,2cyclictest0-21swapper/108:07:321
15757992118,2cyclictest8837-21df_inode08:12:251
15757992118,2cyclictest16619-21head07:07:311
15757992111,5cyclictest0-21swapper/108:57:281
1575699218,9cyclictest636-21nscd12:25:270
1575699215,5cyclictest5125-21munin-run09:17:130
1575699214,11cyclictest0-21swapper/007:32:250
1575699214,11cyclictest0-21swapper/007:32:250
1575699213,9cyclictest0-21swapper/009:27:160
1575699213,11cyclictest0-21swapper/011:57:280
15756992110,7cyclictest0-21swapper/010:59:200
15756992110,6cyclictest0-21swapper/007:17:270
1575699210,20cyclictest0-21swapper/011:33:290
1575799203,11cyclictest0-21swapper/107:47:271
15757992017,2cyclictest7411-21hddtemp_smartct10:02:291
15757992017,2cyclictest0-21swapper/107:52:321
15757992011,5cyclictest91rcu_preempt07:13:271
1575699204,7cyclictest0-21swapper/009:32:260
1575699203,8cyclictest0-21swapper/009:37:270
1575699201,8cyclictest0-21swapper/010:51:320
15756992012,3cyclictest636-21nscd09:02:320
15756992010,8cyclictest0-21swapper/009:45:110
15756992010,6cyclictest18814-21ls07:12:320
15756992010,3cyclictest0-21swapper/012:29:300
1575699200,19cyclictest21542-21/usr/sbin/munin07:22:300
15757991915,3cyclictest0-21swapper/108:32:281
1575699196,9cyclictest0-21swapper/008:02:340
15756991917,1cyclictest14058-21smartctl11:42:330
15756991915,3cyclictest81ktimersoftd/007:27:230
15756991910,5cyclictest636-21nscd12:02:330
1575699190,18cyclictest30994-21seq09:50:570
1575699189,2cyclictest31427-21/usr/sbin/munin07:47:290
1575699186,7cyclictest0-21swapper/009:52:260
1575699181,7cyclictest0-21swapper/010:24:150
15756991816,1cyclictest0-21swapper/010:53:380
15756991812,4cyclictest97750irq/106-eth1-rx11:30:540
15756991810,4cyclictest0-21swapper/010:27:270
15756991810,3cyclictest0-21swapper/008:57:310
1575699173,9cyclictest0-21swapper/007:37:260
15756991710,4cyclictest0-21swapper/008:10:080
15756991710,3cyclictest0-21swapper/012:13:480
15756991710,2cyclictest0-21swapper/008:22:220
1575699164,6cyclictest0-21swapper/008:17:300
15756991610,4cyclictest0-21swapper/007:57:280
15756991610,4cyclictest0-21swapper/007:42:270
15756991610,3cyclictest0-21swapper/010:43:410
15756991610,2cyclictest0-21swapper/011:04:200
15756991610,2cyclictest0-21swapper/008:12:260
15757991510,1cyclictest0-21swapper/107:27:131
1575699153,7cyclictest0-21swapper/008:37:270
15756991510,2cyclictest0-21swapper/008:52:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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