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2023-11-29 - 16:40
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Wed Nov 29, 2023 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2958427057,9sleep10-21swapper/107:05:391
2931926854,9sleep00-21swapper/007:02:530
250492610,1sleep00-21swapper/010:56:290
2980099219,3cyclictest19193-21gdbus08:21:381
2980099218,4cyclictest24125-21systemd08:12:011
2980099199,1cyclictest17106-21sleep11:31:011
2980099189,2cyclictest24-21ksoftirqd/109:26:291
29800991810,3cyclictest18498-21ntp_states09:11:301
2980099179,3cyclictest28947-21apache_processe12:31:221
2980099179,3cyclictest24084-21apache_processe10:56:201
29800991717,0cyclictest0-21swapper/111:43:311
29800991715,1cyclictest12597-21gzip09:01:281
29800991710,3cyclictest32461-21apache_processe08:31:191
29800991710,2cyclictest7063-21apache_processe12:01:261
29800991710,2cyclictest6971-21irqstats11:16:281
29799991716,1cyclictest4053-21ls11:56:250
2980099169,4cyclictest24-21ksoftirqd/109:46:211
2980099169,3cyclictest31440-21apache_accesses11:06:251
2980099169,3cyclictest28080-21diskstats11:01:241
2980099169,3cyclictest1362-21apache_processe07:16:201
2980099169,2cyclictest9517-21apache_processe10:36:201
2980099169,2cyclictest28582-21diskstats10:16:221
2980099169,2cyclictest17909-21apache_accesses12:16:181
2980099168,3cyclictest31222-21apache_volume09:31:201
2980099168,2cyclictest5626-21irqstats09:41:191
2980099166,1cyclictest101rcu_sched07:36:011
2980099165,3cyclictest24-21ksoftirqd/112:06:221
29800991611,1cyclictest91rcu_preempt11:56:161
29800991610,2cyclictest2228-21df_inode08:36:211
29800991610,0cyclictest0-21swapper/110:33:161
29799991616,0cyclictest24451-21ssh12:24:390
29799991615,1cyclictest18396-21mailstats11:31:310
29799991614,1cyclictest23118-21ssh11:37:550
29799991610,6cyclictest0-21swapper/009:23:290
29799991610,5cyclictest0-21swapper/011:11:140
2980099159,3cyclictest31968-21apache_processe11:51:171
2980099159,3cyclictest16678-21apache_accesses10:46:191
2980099159,2cyclictest25564-21diskstats12:26:211
2980099158,3cyclictest2631-21apache_processe11:11:231
2980099158,3cyclictest24795-21apache_processe08:16:211
2980099158,3cyclictest21604-21ntp_states08:06:291
2980099158,3cyclictest13621-21hddtemp_smartct10:41:281
2980099158,2cyclictest30180-21hddtemp_smartct07:06:201
2980099158,2cyclictest13160-21apache_volume07:46:191
2980099158,1cyclictest24-21ksoftirqd/112:11:221
2980099158,1cyclictest17012-21apache_volume07:56:211
2980099157,3cyclictest24-21ksoftirqd/110:11:161
2980099156,3cyclictest24-21ksoftirqd/111:51:011
2980099156,3cyclictest24-21ksoftirqd/109:21:191
2980099156,3cyclictest24-21ksoftirqd/107:41:321
2980099155,3cyclictest24-21ksoftirqd/109:51:011
29800991515,0cyclictest0-21swapper/110:08:371
29800991515,0cyclictest0-21swapper/107:22:541
29800991513,1cyclictest24-21ksoftirqd/109:06:501
29800991513,1cyclictest23681-21awk09:21:001
29800991511,3cyclictest24-21ksoftirqd/112:21:321
29800991510,5cyclictest0-21swapper/107:15:131
29800991510,2cyclictest5845-21apache_processe08:46:231
29800991510,1cyclictest0-21swapper/111:33:581
29800991510,0cyclictest0-21swapper/108:29:331
29799991514,1cyclictest27247-21ssh12:27:490
29799991513,1cyclictest2170-21ssh11:54:130
29799991512,2cyclictest93650irq/99-eth0-rx-09:08:330
29799991510,5cyclictest0-21swapper/011:21:450
29799991510,4cyclictest0-21swapper/012:16:130
29799991510,0cyclictest0-21swapper/010:08:150
2980099148,3cyclictest21102-21apache_volume11:36:171
2980099148,1cyclictest5421-21df07:26:231
2980099148,1cyclictest24-21ksoftirqd/110:00:341
2980099147,1cyclictest24-21ksoftirqd/110:51:271
2980099146,3cyclictest2119-21entropy10:26:151
2980099146,2cyclictest24-21ksoftirqd/111:21:341
2980099145,3cyclictest24-21ksoftirqd/110:01:241
2980099145,3cyclictest24-21ksoftirqd/108:51:231
29800991414,0cyclictest0-21swapper/110:24:091
29800991412,1cyclictest24-21ksoftirqd/109:41:011
29799991414,0cyclictest0-21swapper/010:22:170
29799991414,0cyclictest0-21swapper/008:04:080
29799991414,0cyclictest0-21swapper/007:51:160
29799991414,0cyclictest0-21swapper/007:16:310
29799991412,1cyclictest93650irq/99-eth0-rx-12:34:510
29799991412,1cyclictest7321-21apache208:41:200
29799991412,1cyclictest30220-21idleruntime07:06:210
29799991412,1cyclictest30209-21sh11:47:280
29799991412,1cyclictest25671-21sleep11:41:540
29799991412,1cyclictest14963-21munin-node10:30:510
29799991412,1cyclictest12492-21sh12:07:380
29799991411,2cyclictest93750irq/100-eth0-rx10:51:170
29799991411,2cyclictest93750irq/100-eth0-rx09:51:500
29799991411,2cyclictest93650irq/99-eth0-rx-11:17:420
29799991411,2cyclictest93650irq/99-eth0-rx-09:18:270
29799991411,2cyclictest7295-21apache210:42:570
29799991410,4cyclictest0-21swapper/009:36:550
29799991410,3cyclictest0-21swapper/009:45:110
29799991410,0cyclictest0-21swapper/012:12:450
29799991410,0cyclictest0-21swapper/012:02:180
2980099139,2cyclictest9550-21diskstats07:36:211
2980099138,2cyclictest18910-21apache_accesses08:01:161
2980099134,4cyclictest24-21ksoftirqd/108:56:271
29800991310,0cyclictest0-21swapper/107:51:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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