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2024-04-28 - 10:01
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Sun Apr 28, 2024 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
563027058,8sleep10-21swapper/119:01:131
565326956,9sleep00-21swapper/019:01:280
154402670,0sleep00-21swapper/022:29:300
243032650,0sleep10-21swapper/121:13:171
6167991810,4cyclictest9913-21perf19:14:570
128842180,0sleep00-21swapper/023:09:570
6168991716,0cyclictest3120-21ssh22:11:291
6168991715,1cyclictest293252sleep123:30:571
6168991715,1cyclictest23527-21ls19:55:171
6168991616,0cyclictest20203-21ssh00:03:401
6168991616,0cyclictest0-21swapper/122:20:191
6168991612,4cyclictest0-21swapper/119:34:191
6168991612,4cyclictest0-21swapper/119:25:511
6167991616,0cyclictest0-21swapper/020:20:200
6167991615,1cyclictest7776-21ssh22:18:390
6167991610,6cyclictest0-21swapper/020:30:210
6168991515,0cyclictest20399-21ssh21:08:201
6168991513,1cyclictest26771-21taskset23:28:201
6168991512,3cyclictest0-21swapper/120:24:031
6168991512,3cyclictest0-21swapper/120:13:591
6168991512,3cyclictest0-21swapper/120:06:071
6168991512,2cyclictest22801-21apache221:55:391
6168991511,4cyclictest0-21swapper/119:35:591
6168991511,4cyclictest0-21swapper/119:21:351
6168991511,4cyclictest0-21swapper/119:05:511
6168991510,5cyclictest0-21swapper/121:48:191
6168991510,5cyclictest0-21swapper/119:15:311
6168991510,5cyclictest0-21swapper/119:11:551
6168991510,4cyclictest0-21swapper/120:00:151
6168991510,4cyclictest0-21swapper/119:54:231
6167991515,0cyclictest0-21swapper/023:00:470
6167991515,0cyclictest0-21swapper/020:15:200
6167991514,1cyclictest17306-21ls23:15:150
6167991514,1cyclictest17306-21ls23:15:150
6167991513,1cyclictest81ktimersoftd/023:50:080
6167991513,1cyclictest81ktimersoftd/023:35:080
6167991513,1cyclictest81ktimersoftd/021:40:080
6167991513,1cyclictest81ktimersoftd/021:35:060
6167991513,1cyclictest25925-21ls20:00:190
6167991510,5cyclictest0-21swapper/023:30:410
6167991510,0cyclictest0-21swapper/022:00:580
6167991510,0cyclictest0-21swapper/019:18:460
6168991414,0cyclictest0-21swapper/122:03:211
6168991414,0cyclictest0-21swapper/121:36:571
6168991414,0cyclictest0-21swapper/121:28:261
6168991414,0cyclictest0-21swapper/120:50:291
6168991413,1cyclictest8813-21ssh23:47:581
6168991413,1cyclictest3306-21ls23:40:121
6168991413,0cyclictest20446-21ssh21:50:441
6168991412,2cyclictest22801-21apache223:00:571
6168991412,1cyclictest22817-21apache222:26:131
6168991412,1cyclictest22801-21apache223:16:391
6168991412,1cyclictest22801-21apache223:16:391
6168991412,1cyclictest22801-21apache221:30:391
6168991412,1cyclictest14596-21awk20:55:171
6168991411,3cyclictest0-21swapper/120:32:311
6168991411,3cyclictest0-21swapper/120:28:431
6168991411,3cyclictest0-21swapper/119:45:271
6168991411,3cyclictest0-21swapper/119:40:351
6168991411,2cyclictest93750irq/100-eth0-rx00:25:441
6168991411,2cyclictest93650irq/99-eth0-rx-21:16:001
6168991411,2cyclictest0-21swapper/123:10:011
6168991411,1cyclictest428-21ssh22:52:221
6168991410,4cyclictest0-21swapper/120:15:071
6168991410,3cyclictest29957-21kworker/u4:022:35:111
6168991410,3cyclictest29549-21kworker/u4:000:21:371
6168991410,3cyclictest0-21swapper/121:40:211
6168991410,1cyclictest22102-21kworker/u4:123:53:221
6168991410,1cyclictest22102-21kworker/u4:123:35:491
6168991410,1cyclictest0-21swapper/122:40:221
6168991410,0cyclictest7661-21ssh00:31:051
6167991414,0cyclictest0-21swapper/019:41:390
6167991414,0cyclictest0-21swapper/019:30:010
6167991414,0cyclictest0-21swapper/000:34:100
6167991412,1cyclictest81ktimersoftd/023:20:180
6167991412,1cyclictest81ktimersoftd/022:55:060
6167991412,1cyclictest81ktimersoftd/022:50:140
6167991412,1cyclictest81ktimersoftd/022:20:170
6167991412,1cyclictest81ktimersoftd/019:55:240
6167991412,1cyclictest4692-21latency_hist22:14:560
6167991412,1cyclictest26329-21ssh23:27:170
6167991412,1cyclictest22817-21apache222:05:100
6167991412,1cyclictest22801-21apache221:48:350
6167991412,1cyclictest13145-21ls19:20:200
6167991411,3cyclictest30202-21kworker/0:200:15:090
6167991411,2cyclictest29099-21/usr/sbin/munin21:20:150
6167991410,4cyclictest30202-21kworker/0:221:12:210
6167991410,1cyclictest18063-21kworker/u4:221:58:490
6167991410,1cyclictest1583-21ssh21:25:200
6167991410,0cyclictest0-21swapper/023:41:170
6167991410,0cyclictest0-21swapper/000:12:000
6168991312,1cyclictest22801-21apache223:55:111
6168991312,1cyclictest22801-21apache200:11:091
6168991312,1cyclictest10606-21snmpd21:04:061
6168991311,2cyclictest0-21swapper/120:35:031
6168991311,1cyclictest93750irq/100-eth0-rx22:44:581
6168991311,1cyclictest22817-21apache222:05:561
6168991311,1cyclictest22801-21apache222:31:361
6168991311,1cyclictest2075-21cstates22:55:081
6168991311,1cyclictest17287-21diskmemload21:22:271
6168991310,3cyclictest0-21swapper/123:20:161
6168991310,3cyclictest0-21swapper/122:14:591
6168991310,3cyclictest0-21swapper/120:49:501
6168991310,3cyclictest0-21swapper/100:14:581
6168991310,3cyclictest0-21swapper/100:05:151
6168991310,1cyclictest0-21swapper/123:05:091
6167991313,0cyclictest0-21swapper/019:06:340
6167991312,1cyclictest22817-21apache220:57:050
6167991312,1cyclictest22801-21apache223:55:200
6167991312,1cyclictest22801-21apache221:01:050
6167991312,1cyclictest10606-21snmpd22:35:480
6167991311,2cyclictest25279-21ssh21:15:010
6167991311,1cyclictest93750irq/100-eth0-rx19:25:110
6167991311,1cyclictest81ktimersoftd/021:30:090
6167991311,1cyclictest81ktimersoftd/000:05:150
6167991311,1cyclictest704-21ntpd20:25:110
6167991311,1cyclictest26765-21apache_processe20:05:100
6167991311,1cyclictest24261-21sh22:40:220
6167991311,1cyclictest22817-21apache222:34:480
6167991311,1cyclictest22801-21apache219:39:390
6167991311,1cyclictest21940-21smartctl19:50:270
6167991310,3cyclictest0-21swapper/023:10:210
6167991310,3cyclictest0-21swapper/022:47:290
6167991310,3cyclictest0-21swapper/020:35:450
6167991310,3cyclictest0-21swapper/000:25:130
6167991310,3cyclictest0-21swapper/000:00:480
6167991310,2cyclictest93650irq/99-eth0-rx-00:20:190
6167991310,1cyclictest93750irq/100-eth0-rx21:05:490
6167991310,1cyclictest93650irq/99-eth0-rx-20:40:070
6167991310,1cyclictest8227-21ssh23:46:380
6167991310,0cyclictest0-21swapper/021:50:030
6167991310,0cyclictest0-21swapper/020:52:330
6168991210,1cyclictest0-21swapper/120:40:051
6167991210,1cyclictest22817-21apache219:46:080
6167991210,1cyclictest22801-21apache220:10:050
6167991210,1cyclictest10135-21http_loadtime20:45:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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