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2022-06-27 - 05:25

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 Mon Jun 27, 2022 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2719727057,8sleep10-21swapper/119:06:201
53112650,2sleep02766799cyclictest21:46:080
2709226535,25sleep00-21swapper/019:05:150
269792460,1sleep00-21swapper/020:29:360
320492190,1sleep00-21swapper/000:34:510
66662180,0sleep00-21swapper/023:16:380
27668991816,1cyclictest6805-21ssh23:16:581
27667991810,8cyclictest0-21swapper/019:47:490
27667991810,0cyclictest0-21swapper/022:39:390
27668991716,1cyclictest15365-21ssh23:29:101
27668991716,1cyclictest13205-21ssh21:56:551
27668991715,1cyclictest17485-21ssh22:03:321
27667991710,7cyclictest0-21swapper/020:12:490
27668991616,0cyclictest26043-21ssh21:30:151
27668991616,0cyclictest22257-21ssh23:38:321
27668991615,1cyclictest22006-21ssh00:21:461
27667991615,1cyclictest27160-21ssh22:59:430
27667991615,1cyclictest24585-21ssh22:57:100
27667991615,0cyclictest7-21ksoftirqd/020:59:180
27667991611,4cyclictest0-21swapper/022:49:530
27667991610,6cyclictest0-21swapper/022:09:490
27667991610,5cyclictest0-21swapper/022:07:090
1229121610,5sleep00-21swapper/021:54:540
27668991515,0cyclictest0-21swapper/120:09:371
27668991514,1cyclictest29315-21ssh23:47:331
27668991513,1cyclictest12085-21ssh00:09:111
27668991510,5cyclictest0-21swapper/122:46:031
27668991510,5cyclictest0-21swapper/122:17:291
27668991510,5cyclictest0-21swapper/120:56:281
27668991510,5cyclictest0-21swapper/120:34:151
27668991510,5cyclictest0-21swapper/119:55:291
27668991510,5cyclictest0-21swapper/119:34:061
27668991510,5cyclictest0-21swapper/100:12:051
27668991510,0cyclictest0-21swapper/123:51:021
27667991515,0cyclictest1744-21ssh22:24:580
27667991515,0cyclictest0-21swapper/019:41:300
27667991512,3cyclictest0-21swapper/020:08:250
27667991511,4cyclictest0-21swapper/019:20:250
27667991510,5cyclictest0-21swapper/023:06:010
27667991510,5cyclictest0-21swapper/022:44:550
27667991510,5cyclictest0-21swapper/022:29:430
27667991510,5cyclictest0-21swapper/020:47:530
27667991510,5cyclictest0-21swapper/019:54:320
27667991510,1cyclictest0-21swapper/021:33:250
27667991510,0cyclictest0-21swapper/021:00:110
27668991414,0cyclictest26853-21ssh00:29:221
27668991414,0cyclictest0-21swapper/119:50:091
27668991414,0cyclictest0-21swapper/119:39:271
27668991414,0cyclictest0-21swapper/119:19:381
27668991413,1cyclictest0-21swapper/123:55:331
27668991412,2cyclictest399-21apache223:22:411
27668991412,1cyclictest28762-21ssh21:34:331
27668991412,1cyclictest27104-21head22:59:401
27668991412,1cyclictest12118-21pluginstate22:39:381
27668991411,2cyclictest93750irq/100-eth0-rx22:34:241
27668991411,2cyclictest93650irq/99-eth0-rx-21:10:451
27668991411,1cyclictest93750irq/100-eth0-rx22:50:181
27668991410,4cyclictest0-21swapper/123:06:411
27668991410,3cyclictest0-21swapper/100:25:201
27667991414,0cyclictest24166-21ntpq00:24:380
27667991414,0cyclictest22018-21ssh21:24:460
27667991414,0cyclictest13181-21ntpq00:09:360
27667991414,0cyclictest0-21swapper/023:50:140
27667991412,2cyclictest0-21swapper/020:21:370
27667991412,1cyclictest7626-21/usr/sbin/munin22:34:320
27667991412,1cyclictest633-21nscd23:21:330
27667991412,1cyclictest412-21apache223:39:230
27667991412,1cyclictest399-21apache223:54:310
27667991412,1cyclictest17127-21/usr/sbin/munin21:19:370
27667991411,3cyclictest0-21swapper/019:29:050
27667991411,2cyclictest93750irq/100-eth0-rx23:24:360
27667991410,4cyclictest0-21swapper/023:38:050
27667991410,4cyclictest0-21swapper/023:32:170
27667991410,4cyclictest0-21swapper/020:39:330
27667991410,4cyclictest0-21swapper/020:16:130
27667991410,3cyclictest0-21swapper/021:50:290
27667991410,1cyclictest32051-21kworker/u4:200:20:250
27667991410,1cyclictest13219-21kworker/u4:021:17:470
27667991410,1cyclictest0-21swapper/022:20:030
27667991410,0cyclictest0-21swapper/022:00:510
27667991410,0cyclictest0-21swapper/021:35:040
27667991410,0cyclictest0-21swapper/020:39:190
27667991410,0cyclictest0-21swapper/000:00:490
27668991313,0cyclictest7355-21apache_accesses21:04:291
27668991313,0cyclictest0-21swapper/123:32:201
27668991312,1cyclictest93750irq/100-eth0-rx21:49:261
27668991312,1cyclictest93750irq/100-eth0-rx20:02:021
27668991312,1cyclictest93750irq/100-eth0-rx00:34:561
27668991312,1cyclictest798-21apache200:00:541
27668991312,1cyclictest730-21snmpd21:02:211
27668991312,1cyclictest412-21apache221:15:121
27668991312,0cyclictest5372-21smartctl19:34:321
27668991311,2cyclictest93750irq/100-eth0-rx22:23:441
27668991311,1cyclictest93750irq/100-eth0-rx23:09:261
27668991311,1cyclictest93650irq/99-eth0-rx-00:15:071
27668991311,1cyclictest9128-21diskmemload22:26:141
27668991311,1cyclictest798-21apache222:09:291
27668991311,1cyclictest399-21apache220:50:221
27668991311,1cyclictest20700-21fschecks_count20:14:321
27668991310,3cyclictest0-21swapper/120:23:391
27668991310,2cyclictest93750irq/100-eth0-rx20:34:351
27668991310,2cyclictest0-21swapper/122:29:231
27668991310,2cyclictest0-21swapper/119:14:341
27668991310,1cyclictest93650irq/99-eth0-rx-21:44:401
27668991310,1cyclictest32556-1kworker/u5:123:40:391
27668991310,1cyclictest31993-21ssh21:39:221
27668991310,1cyclictest22979-21ssh21:26:431
27668991310,1cyclictest11984-21kworker/u4:221:22:501
27668991310,1cyclictest0-21swapper/122:05:321
27668991310,0cyclictest0-21swapper/122:56:131
27668991310,0cyclictest0-21swapper/120:05:151
27668991310,0cyclictest0-21swapper/119:45:381
27668991310,0cyclictest0-21swapper/119:27:421
27667991312,1cyclictest399-21apache200:04:580
27667991311,2cyclictest0-21swapper/019:13:110
27667991311,1cyclictest93650irq/99-eth0-rx-19:49:360
27667991311,1cyclictest1234-21fschecks_time23:09:320
27667991310,3cyclictest0-21swapper/023:45:140
27667991310,3cyclictest0-21swapper/019:35:370
27667991310,3cyclictest0-21swapper/019:15:090
27667991310,2cyclictest0-21swapper/019:29:400
27667991310,1cyclictest93750irq/100-eth0-rx21:40:150
27667991310,1cyclictest93750irq/100-eth0-rx00:14:310
27667991310,1cyclictest0-21swapper/021:12:210
27667991310,1cyclictest0-21swapper/000:29:260
27667991310,0cyclictest0-21swapper/022:14:250
27667991310,0cyclictest0-21swapper/020:49:280
27668991210,1cyclictest730-21snmpd20:39:291
27668991210,1cyclictest0-21swapper/120:44:271
27668991210,1cyclictest0-21swapper/120:24:291
27668991210,1cyclictest0-21swapper/119:09:211
27667991210,1cyclictest0-21swapper/021:04:300
27667991210,1cyclictest0-21swapper/020:24:300
27667991210,1cyclictest0-21swapper/019:59:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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