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2022-08-20 - 05:35

x86 Intel Celeron G3900 @2800 MHz, 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 Sat Aug 20, 2022 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2965727555,16sleep00-21swapper/019:07:360
2802427234,19sleep10-21swapper/119:04:041
70962660,0sleep10-21swapper/123:19:251
53692210,0sleep00-21swapper/000:04:160
254502190,1sleep10-21swapper/123:46:121
29967991817,0cyclictest24364-21ssh22:12:020
29967991710,1cyclictest0-21swapper/021:04:150
29968991616,0cyclictest0-21swapper/121:29:221
29968991616,0cyclictest0-21swapper/121:09:211
29968991615,1cyclictest1702-21ntp_states21:39:191
29968991615,0cyclictest1823-21ls20:43:581
29968991610,6cyclictest0-21swapper/122:57:241
29968991610,6cyclictest0-21swapper/119:29:311
29968991610,0cyclictest0-21swapper/120:49:461
29967991616,0cyclictest7-21ksoftirqd/021:43:580
29967991616,0cyclictest28041-21chrt20:25:470
29967991615,1cyclictest13187-21ssh21:09:380
29967991614,1cyclictest23257-21ls21:24:170
29967991610,6cyclictest0-21swapper/023:35:160
29967991610,6cyclictest0-21swapper/022:14:190
29968991515,0cyclictest29946-21ssh23:06:431
29968991515,0cyclictest19984-21ssh22:52:321
29968991515,0cyclictest0-21swapper/119:44:581
29968991514,1cyclictest2755-21ssh23:59:311
29968991514,1cyclictest16973-21ssh21:14:491
29968991510,5cyclictest0-21swapper/123:54:221
29968991510,5cyclictest0-21swapper/122:37:421
29968991510,5cyclictest0-21swapper/121:59:161
29968991510,0cyclictest0-21swapper/100:18:361
29967991515,0cyclictest22607-21cat00:29:170
29967991515,0cyclictest0-21swapper/023:20:240
29967991514,0cyclictest15366-21ssh22:44:520
29967991513,1cyclictest288782sleep023:51:060
29967991512,2cyclictest93750irq/100-eth0-rx20:58:070
29967991512,2cyclictest93750irq/100-eth0-rx19:17:070
29967991512,2cyclictest5965-21apache200:01:360
29967991510,0cyclictest0-21swapper/020:11:570
2996899149,1cyclictest231ktimersoftd/122:14:171
29968991414,0cyclictest0-21swapper/122:59:351
29968991414,0cyclictest0-21swapper/121:44:341
29968991414,0cyclictest0-21swapper/121:34:431
29968991414,0cyclictest0-21swapper/119:09:431
29968991413,1cyclictest24982-21ssh22:13:281
29968991411,2cyclictest93750irq/100-eth0-rx00:29:311
29968991410,4cyclictest0-21swapper/122:28:201
29968991410,4cyclictest0-21swapper/120:19:501
29968991410,3cyclictest0-21swapper/122:19:111
29968991410,3cyclictest0-21swapper/120:34:161
29968991410,1cyclictest23649-21kworker/u4:223:13:071
29968991410,1cyclictest0-21swapper/120:09:581
29968991410,0cyclictest0-21swapper/123:50:531
29968991410,0cyclictest0-21swapper/123:39:371
29968991410,0cyclictest0-21swapper/123:14:531
29968991410,0cyclictest0-21swapper/122:07:201
29968991410,0cyclictest0-21swapper/100:21:551
29968991410,0cyclictest0-21swapper/100:05:441
2996799143,5cyclictest16780-21munin-run19:58:580
29967991414,0cyclictest0-21swapper/020:44:420
29967991413,0cyclictest11486-21diskmemload23:45:430
29967991412,2cyclictest5993-21apache223:30:520
29967991412,2cyclictest5993-21apache221:38:010
29967991412,2cyclictest5965-21apache222:43:390
29967991412,1cyclictest5993-21apache221:22:570
29967991410,4cyclictest0-21swapper/021:54:220
29967991410,3cyclictest10897-21kworker/u4:200:22:400
29967991410,3cyclictest0-21swapper/022:01:090
29967991410,1cyclictest30398-21kworker/u4:122:23:200
29967991410,0cyclictest0-21swapper/022:53:190
29968991313,0cyclictest0-21swapper/121:49:351
29968991312,1cyclictest20713-21ssh21:19:591
29968991312,1cyclictest16982-21kworker/1:323:30:071
29968991312,0cyclictest8754-21cut20:59:191
29968991312,0cyclictest3901-21if_eth219:24:151
29968991311,1cyclictest633-21nscd20:44:181
29968991311,1cyclictest5993-21apache219:53:111
29968991311,1cyclictest5965-21apache200:34:061
29968991311,1cyclictest22687-21cpuspeed_turbos21:24:131
29968991311,1cyclictest11486-21diskmemload22:29:051
29968991310,3cyclictest0-21swapper/120:30:391
29968991310,3cyclictest0-21swapper/120:24:021
29968991310,3cyclictest0-21swapper/120:18:411
29968991310,3cyclictest0-21swapper/100:24:501
29968991310,3cyclictest0-21swapper/100:24:501
29968991310,1cyclictest23649-21kworker/u4:223:24:361
29968991310,1cyclictest16561-21ssh23:34:111
29968991310,1cyclictest0-21swapper/122:39:541
29968991310,1cyclictest0-21swapper/120:05:581
29968991310,1cyclictest0-21swapper/119:38:341
29968991310,1cyclictest0-21swapper/119:20:301
29968991310,1cyclictest0-21swapper/100:09:261
29968991310,0cyclictest9681-21copy21:03:591
29968991310,0cyclictest0-21swapper/122:46:181
29968991310,0cyclictest0-21swapper/121:54:211
29968991310,0cyclictest0-21swapper/119:40:181
29967991313,0cyclictest0-21swapper/020:40:490
29967991312,1cyclictest7-21ksoftirqd/023:24:210
29967991312,1cyclictest5993-21apache221:49:190
29967991312,1cyclictest5965-21apache222:29:440
29967991312,1cyclictest30859-21kworker/0:123:14:230
29967991312,1cyclictest22677-21http20:13:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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