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2021-06-17 - 19:51

Intel(R) Celeron(R) CPU G3900 @ 2.80GHz, Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #c, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h200 -q
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 Thu Jun 10, 2021 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2189327750,22sleep00-21swapper/007:02:580
2210326755,8sleep10-21swapper/107:05:101
22473991716,1cyclictest11268-21ssh12:12:411
22472991715,1cyclictest4358-21ssh12:03:060
22472991710,6cyclictest3974-21kworker/0:108:02:290
22472991710,6cyclictest17029-21kworker/0:107:14:330
22472991710,6cyclictest17029-21kworker/0:107:14:330
22473991616,0cyclictest0-21swapper/111:27:291
22473991612,3cyclictest2422-21kworker/1:110:46:201
22473991610,6cyclictest0-21swapper/111:17:211
22473991610,6cyclictest0-21swapper/107:46:221
22473991610,6cyclictest0-21swapper/107:27:271
22473991610,0cyclictest0-21swapper/108:47:111
22472991616,0cyclictest23610-21ssh11:00:410
22472991616,0cyclictest0-21swapper/008:12:300
22472991615,1cyclictest24829-21ntpdc09:32:290
22472991615,1cyclictest0-21swapper/010:28:100
22472991614,1cyclictest6402-21ls09:52:050
22472991611,5cyclictest3974-21kworker/0:109:09:050
22472991610,6cyclictest0-21swapper/011:09:560
22472991610,6cyclictest0-21swapper/009:58:360
22472991610,5cyclictest3974-21kworker/0:108:17:450
22473991515,0cyclictest1860-21ssh11:15:331
22473991515,0cyclictest17788-21sshd09:22:451
22473991512,2cyclictest32373-21apache212:11:001
22473991512,2cyclictest32373-21apache210:20:501
22473991512,2cyclictest32359-21apache209:42:581
22473991511,4cyclictest32385-21kworker/1:009:41:481
22473991510,5cyclictest0-21swapper/112:01:371
22473991510,5cyclictest0-21swapper/111:05:391
22473991510,5cyclictest0-21swapper/109:51:391
22473991510,4cyclictest32385-21kworker/1:009:35:441
22473991510,4cyclictest32385-21kworker/1:009:30:161
22473991510,4cyclictest32385-21kworker/1:008:36:121
22473991510,4cyclictest29017-21ls11:52:301
22473991510,4cyclictest2422-21kworker/1:110:06:121
22473991510,0cyclictest0-21swapper/112:18:091
22473991510,0cyclictest0-21swapper/108:14:461
22473991510,0cyclictest0-21swapper/107:37:101
22472991515,0cyclictest27140-21ssh10:20:330
22472991515,0cyclictest19510-21ssh12:25:020
22472991515,0cyclictest0-21swapper/010:42:260
22472991515,0cyclictest0-21swapper/008:33:140
22472991511,4cyclictest3974-21kworker/0:111:06:170
22472991511,3cyclictest3974-21kworker/0:108:57:170
22472991510,5cyclictest5456-21kworker/0:011:47:050
22472991510,5cyclictest3974-21kworker/0:108:48:410
22472991510,5cyclictest3974-21kworker/0:108:41:050
22472991510,5cyclictest0-21swapper/012:00:330
22472991510,5cyclictest0-21swapper/011:16:370
22472991510,5cyclictest0-21swapper/010:40:120
22472991510,4cyclictest0-21swapper/008:42:180
22472991510,0cyclictest0-21swapper/010:55:040
22472991510,0cyclictest0-21swapper/010:04:470
22472991510,0cyclictest0-21swapper/007:29:350
22473991414,0cyclictest19257-21ssh10:09:091
22473991414,0cyclictest0-21swapper/110:32:351
22473991414,0cyclictest0-21swapper/107:22:321
22473991413,1cyclictest20566-21ssh12:27:131
22473991413,1cyclictest0-21swapper/108:58:021
22473991412,2cyclictest2422-21kworker/1:112:32:401
22473991412,1cyclictest9683-21/usr/sbin/munin07:57:221
22473991412,1cyclictest32359-21apache209:08:181
22473991412,1cyclictest18741-21sh12:23:041
22473991412,1cyclictest1-21systemd07:20:091
22473991412,1cyclictest11044-21/usr/sbin/munin09:57:221
22473991412,1cyclictest0-21swapper/111:49:331
22473991411,2cyclictest32359-21apache209:12:141
22473991411,2cyclictest17107-21/usr/sbin/munin10:52:171
22473991410,4cyclictest2422-21kworker/1:111:43:081
22473991410,4cyclictest0-21swapper/110:48:391
22473991410,3cyclictest23572-21kworker/u4:111:07:181
22473991410,1cyclictest23572-21kworker/u4:111:00:231
22473991410,0cyclictest0-21swapper/109:53:481
22472991414,0cyclictest12358-21ssh09:17:100
22472991414,0cyclictest0-21swapper/007:40:370
22472991412,1cyclictest32359-21apache212:28:550
22472991412,1cyclictest32359-21apache211:54:340
22472991412,1cyclictest10596-21sh09:14:040
22472991411,3cyclictest3974-21kworker/0:110:08:450
22472991411,2cyclictest32373-21apache212:17:020
22472991411,2cyclictest18774-1kworker/u5:009:37:470
22472991411,2cyclictest100050irq/100-eth0-rx12:17:300
22472991410,4cyclictest0-21swapper/011:18:030
22472991410,3cyclictest0-21swapper/012:07:220
22472991410,1cyclictest23572-21kworker/u4:111:34:320
22472991410,1cyclictest15444-21kworker/u4:009:23:320
22473991312,1cyclictest627-21apache207:07:301
22473991312,1cyclictest2763-21smartctl09:02:221
22473991311,1cyclictest847-21apache208:17:231
22473991311,1cyclictest30854-21/usr/sbin/munin08:52:311
22473991311,1cyclictest226682sleep108:28:501
22473991311,1cyclictest100050irq/100-eth0-rx10:27:191
22473991310,3cyclictest32385-21kworker/1:008:42:161
22473991310,3cyclictest0-21swapper/109:17:171
22473991310,3cyclictest0-21swapper/108:41:481
22473991310,3cyclictest0-21swapper/107:52:231
22473991310,3cyclictest0-21swapper/107:48:401
22473991310,3cyclictest0-21swapper/107:32:411
22473991310,3cyclictest0-21swapper/107:14:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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