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2023-05-31 - 13:11

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 highest latencies:
System rackcslot2.osadl.org (updated Wed May 31, 2023 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3165127057,8sleep10-21swapper/119:05:441
305252680,1sleep130522-21tune2fs23:12:441
3174526552,8sleep00-21swapper/019:06:410
68652480,2sleep13198699cyclictest23:32:471
31986991910,8cyclictest0-21swapper/100:02:561
31986991710,7cyclictest0-21swapper/100:01:361
31986991710,1cyclictest0-21swapper/121:13:201
31986991710,0cyclictest0-21swapper/122:53:101
31986991710,0cyclictest0-21swapper/120:27:201
31985991716,0cyclictest17551-21tr22:37:490
31985991710,6cyclictest0-21swapper/023:03:120
31986991614,1cyclictest221712sleep122:51:531
31986991612,4cyclictest0-21swapper/122:07:521
31986991610,6cyclictest0-21swapper/123:08:401
31986991610,6cyclictest0-21swapper/122:21:361
31986991610,6cyclictest0-21swapper/120:26:441
31986991610,5cyclictest0-21swapper/123:49:281
31986991610,5cyclictest0-21swapper/122:33:321
31986991610,0cyclictest0-21swapper/122:22:281
31986991610,0cyclictest0-21swapper/120:00:281
31986991610,0cyclictest0-21swapper/100:12:481
31985991615,0cyclictest5083-21chrt19:20:020
31986991515,0cyclictest0-21swapper/119:23:271
31986991513,2cyclictest0-21swapper/121:26:401
31986991512,3cyclictest0-21swapper/122:02:281
31986991512,3cyclictest0-21swapper/121:54:481
31986991512,3cyclictest0-21swapper/121:21:241
31986991512,3cyclictest0-21swapper/120:33:441
31986991511,4cyclictest0-21swapper/121:09:521
31986991511,3cyclictest0-21swapper/121:38:041
31986991510,5cyclictest0-21swapper/123:44:161
31986991510,5cyclictest0-21swapper/123:03:381
31986991510,5cyclictest0-21swapper/121:59:441
31986991510,5cyclictest0-21swapper/121:36:361
31986991510,5cyclictest0-21swapper/121:05:111
31986991510,5cyclictest0-21swapper/121:00:001
31986991510,5cyclictest0-21swapper/119:14:121
31986991510,1cyclictest0-21swapper/120:39:561
31986991510,0cyclictest0-21swapper/123:53:041
31985991515,0cyclictest0-21swapper/019:12:490
31985991514,0cyclictest7748-21cut19:27:420
31985991514,0cyclictest20384-21taskset19:58:490
31985991510,5cyclictest0-21swapper/021:49:110
31985991510,5cyclictest0-21swapper/000:24:520
31985991510,0cyclictest0-21swapper/020:35:410
31986991414,0cyclictest0-21swapper/121:27:541
31986991414,0cyclictest0-21swapper/119:37:491
31986991413,1cyclictest0-21swapper/122:14:441
31986991412,2cyclictest0-21swapper/123:38:081
31986991412,2cyclictest0-21swapper/122:37:561
31986991412,2cyclictest0-21swapper/121:42:281
31986991412,2cyclictest0-21swapper/119:54:121
31986991412,2cyclictest0-21swapper/100:33:561
31986991412,2cyclictest0-21swapper/100:07:321
31986991412,1cyclictest712-21apache219:29:161
31986991412,1cyclictest712-21apache200:25:261
31986991412,1cyclictest1087-21runrttasks20:17:461
31986991411,3cyclictest0-21swapper/123:27:001
31986991410,4cyclictest0-21swapper/123:18:561
31986991410,4cyclictest0-21swapper/122:29:041
31986991410,4cyclictest0-21swapper/119:42:481
31986991410,0cyclictest0-21swapper/100:17:441
31985991414,0cyclictest29542-21perl00:32:400
31985991414,0cyclictest0-21swapper/022:53:000
31985991414,0cyclictest0-21swapper/020:06:570
31985991414,0cyclictest0-21swapper/000:14:310
31985991412,1cyclictest714-21apache221:36:020
31985991412,1cyclictest712-21apache200:09:380
31985991412,1cyclictest4585-21kernelversion20:42:470
31985991412,1cyclictest11169-21munin-node22:27:410
31985991411,2cyclictest714-21apache221:15:430
31985991410,3cyclictest0-21swapper/022:17:380
31985991410,2cyclictest0-21swapper/023:55:260
31985991410,0cyclictest0-21swapper/022:51:440
31986991313,0cyclictest0-21swapper/119:47:401
31986991312,1cyclictest714-21apache221:52:031
31986991312,1cyclictest714-21apache220:15:291
31986991312,1cyclictest0-21swapper/120:57:001
31986991312,1cyclictest0-21swapper/100:30:501
31986991312,0cyclictest24-21ksoftirqd/120:02:461
31986991311,2cyclictest0-21swapper/123:28:401
31986991311,2cyclictest0-21swapper/122:59:161
31986991311,2cyclictest0-21swapper/120:44:001
31986991311,2cyclictest0-21swapper/119:11:081
31986991311,1cyclictest712-21apache222:42:341
31986991311,1cyclictest633-21nscd20:52:181
31986991311,1cyclictest3566-21/usr/sbin/munin19:17:371
31986991310,3cyclictest0-21swapper/120:11:201
31985991313,0cyclictest0-21swapper/021:04:250
31985991313,0cyclictest0-21swapper/019:37:500
31985991312,1cyclictest712-21apache223:12:420
31985991312,1cyclictest712-21apache221:37:520
31985991312,1cyclictest633-21nscd22:22:480
31985991312,1cyclictest579-21gmain20:27:470
31985991312,1cyclictest20701-21timerwakeupswit21:22:560
31985991312,0cyclictest7-21ksoftirqd/000:02:180
31985991312,0cyclictest0-21swapper/022:43:080
31985991311,1cyclictest9952-21latency19:32:470
31985991311,1cyclictest9887-21taskset23:42:370
31985991311,1cyclictest81ktimersoftd/023:22:460
31985991311,1cyclictest730-21snmpd19:07:270
31985991311,1cyclictest7-21ksoftirqd/022:17:180
31985991311,1cyclictest714-21apache220:52:490
31985991311,1cyclictest2542-21if_eth020:37:440
31985991311,1cyclictest0-21swapper/019:48:120
31985991310,3cyclictest0-21swapper/023:38:200
31985991310,3cyclictest0-21swapper/023:19:520
31985991310,3cyclictest0-21swapper/023:11:170
31985991310,3cyclictest0-21swapper/021:52:190
31985991310,3cyclictest0-21swapper/021:17:490
31985991310,3cyclictest0-21swapper/020:48:580
31985991310,3cyclictest0-21swapper/020:17:210
31985991310,3cyclictest0-21swapper/000:18:310
31985991310,2cyclictest714-21apache220:14:460
31985991310,2cyclictest20877-21kworker/u4:120:22:510
31985991310,0cyclictest8648-21kworker/u4:219:23:270
31985991310,0cyclictest0-21swapper/023:34:150
31985991310,0cyclictest0-21swapper/022:06:570
31985991310,0cyclictest0-21swapper/000:06:100
31986991211,1cyclictest714-21apache219:32:191
31985991212,0cyclictest712-21apache223:27:360
31985991212,0cyclictest11169-21munin-node22:07:290
31985991212,0cyclictest11169-21munin-node21:57:210
31985991211,1cyclictest712-21apache200:27:230
31985991211,1cyclictest31983-21cyclictest22:57:240
31985991210,2cyclictest0-21swapper/023:47:360
31985991210,2cyclictest0-21swapper/021:27:390
31985991210,2cyclictest0-21swapper/021:07:200
31985991210,1cyclictest712-21apache221:42:380
31985991210,1cyclictest597-21avahi-daemon19:52:360
31985991210,1cyclictest0-21swapper/022:32:360
31985991210,1cyclictest0-21swapper/020:57:370
31985991210,1cyclictest0-21swapper/020:07:350
31985991210,1cyclictest0-21swapper/019:42:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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