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2022-11-28 - 09:24

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 all highest latencies:
System rackcslot2.osadl.org (updated Mon Nov 28, 2022 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2826927057,8sleep10-21swapper/119:07:081
2838426955,9sleep00-21swapper/019:08:200
246442660,0sleep10-21swapper/100:03:421
28570991810,0cyclictest0-21swapper/120:08:451
28570991716,1cyclictest28762-21ssh23:18:451
28570991716,0cyclictest16577-21ssh23:50:011
28569991716,0cyclictest23166-21ssh21:28:310
28569991715,1cyclictest7678-21taskset00:31:070
28570991616,0cyclictest15578-21ssh21:15:281
28570991616,0cyclictest0-21swapper/122:43:461
28570991615,1cyclictest25851-21awk23:13:521
28570991614,1cyclictest22776-21ssh23:59:451
28570991610,6cyclictest0-21swapper/120:38:121
28570991515,0cyclictest4989-21ssh23:33:061
28570991515,0cyclictest23450-21ssh23:09:241
28570991515,0cyclictest17009-21taskset19:59:581
28570991515,0cyclictest10092-21cat21:58:371
28570991515,0cyclictest0-21swapper/123:01:351
28570991514,0cyclictest5171-21rm21:49:431
28570991514,0cyclictest31783-21rm23:23:421
28570991513,1cyclictest324692sleep119:18:271
28570991513,1cyclictest31168-21wc20:38:441
28570991513,1cyclictest24769-21sshd20:20:311
28570991511,3cyclictest25829-21ssh21:32:291
28570991510,5cyclictest0-21swapper/122:08:441
28570991510,0cyclictest0-21swapper/100:23:161
28569991515,0cyclictest7741-21sshd22:44:330
28569991513,1cyclictest7-21ksoftirqd/000:23:410
28569991510,5cyclictest0-21swapper/000:02:480
28569991510,0cyclictest0-21swapper/022:12:530
28569991510,0cyclictest0-21swapper/022:07:220
28569991510,0cyclictest0-21swapper/021:28:070
28569991510,0cyclictest0-21swapper/019:58:440
184112150,0sleep00-21swapper/021:19:220
28570991414,0cyclictest9231-21chrt19:39:121
28570991414,0cyclictest24-21ksoftirqd/122:53:231
28570991414,0cyclictest24-21ksoftirqd/119:12:561
28570991414,0cyclictest14613-21ssh23:48:191
28570991414,0cyclictest0-21swapper/121:22:511
28570991414,0cyclictest0-21swapper/121:08:181
28570991414,0cyclictest0-21swapper/119:51:481
28570991414,0cyclictest0-21swapper/100:38:181
28570991414,0cyclictest0-21swapper/100:31:071
28570991414,0cyclictest0-21swapper/100:14:451
28570991413,1cyclictest13399-21ssh21:13:211
28570991413,0cyclictest28804-21ssh00:09:411
28570991412,2cyclictest2244-21apache222:16:281
28570991412,1cyclictest93650irq/99-eth0-rx-22:38:321
28570991412,1cyclictest93650irq/99-eth0-rx-21:53:251
28570991412,1cyclictest5049-21python19:28:451
28570991412,1cyclictest484-21/usr/sbin/munin20:43:471
28570991412,1cyclictest31281-21ntpdc19:13:421
28570991412,1cyclictest20443-21ssh23:57:141
28570991410,4cyclictest0-21swapper/119:25:341
28570991410,3cyclictest0-21swapper/122:33:491
28569991414,0cyclictest0-21swapper/022:28:450
28569991413,1cyclictest0-21swapper/019:33:410
28569991413,0cyclictest7-21ksoftirqd/023:23:390
28569991412,1cyclictest320032sleep019:15:340
28569991412,1cyclictest135-21jbd2/sda1-800:19:550
28569991411,2cyclictest93750irq/100-eth0-rx00:14:340
28569991411,2cyclictest31573-21ssh21:40:190
28569991410,4cyclictest0-21swapper/022:01:460
28569991410,3cyclictest7609-21kworker/u4:222:49:350
28569991410,3cyclictest0-21swapper/023:49:480
28569991410,0cyclictest0-21swapper/023:47:170
1985221410,3sleep00-21swapper/023:55:340
778421310,2sleep00-21swapper/020:59:440
28570991313,0cyclictest24-21ksoftirqd/120:23:411
28570991313,0cyclictest0-21swapper/122:18:391
28570991312,1cyclictest2244-21apache219:44:001
28570991312,1cyclictest2216-21apache220:32:041
28570991311,2cyclictest0-21swapper/122:53:461
28570991311,1cyclictest5320-21/usr/sbin/munin23:33:421
28570991311,1cyclictest2830-21fschecks_time20:48:411
28570991311,1cyclictest2244-21apache223:03:581
28570991311,1cyclictest2216-21apache221:38:291
28570991311,1cyclictest2216-21apache220:53:331
28570991311,1cyclictest0-21swapper/122:28:371
28570991311,1cyclictest0-21swapper/122:05:091
28570991310,3cyclictest0-21swapper/122:23:371
28570991310,3cyclictest0-21swapper/100:25:321
28570991310,2cyclictest93750irq/100-eth0-rx21:23:281
28570991310,2cyclictest0-21swapper/121:33:251
28570991310,2cyclictest0-21swapper/119:53:391
28570991310,1cyclictest6919-1kworker/u5:123:39:311
28570991310,1cyclictest0-21swapper/121:43:291
28569991313,0cyclictest19950-21sed23:03:480
28569991313,0cyclictest0-21swapper/020:07:040
28569991312,1cyclictest633-21nscd21:53:330
28569991312,1cyclictest2244-21apache222:25:460
28569991312,1cyclictest20566-21ls22:13:530
28569991311,2cyclictest93750irq/100-eth0-rx22:18:340
28569991311,1cyclictest93650irq/99-eth0-rx-00:33:390
28569991311,1cyclictest81ktimersoftd/022:38:380
28569991311,1cyclictest268502sleep020:27:100
28569991311,1cyclictest2244-21apache219:53:430
28569991311,1cyclictest2244-21apache219:38:360
28569991311,1cyclictest2216-21apache222:53:290
28569991311,1cyclictest2216-21apache221:04:500
28569991311,1cyclictest2216-21apache220:48:490
28569991310,3cyclictest0-21swapper/023:21:030
28569991310,3cyclictest0-21swapper/023:13:570
28569991310,3cyclictest0-21swapper/023:12:520
28569991310,3cyclictest0-21swapper/021:44:180
28569991310,3cyclictest0-21swapper/021:33:470
28569991310,3cyclictest0-21swapper/021:14:170
28569991310,3cyclictest0-21swapper/020:42:300
28569991310,3cyclictest0-21swapper/020:34:250
28569991310,3cyclictest0-21swapper/019:29:280
28569991310,3cyclictest0-21swapper/000:03:260
28569991310,2cyclictest93750irq/100-eth0-rx22:58:370
28569991310,2cyclictest93750irq/100-eth0-rx20:28:370
28569991310,2cyclictest0-21swapper/019:18:440
28569991310,1cyclictest93750irq/100-eth0-rx21:48:420
28569991310,1cyclictest93750irq/100-eth0-rx21:08:360
28569991310,1cyclictest0-21swapper/023:38:320
28569991310,1cyclictest0-21swapper/023:38:130
28569991310,1cyclictest0-21swapper/020:53:390
28569991310,0cyclictest27261-21kworker/u4:200:09:210
28569991310,0cyclictest0-21swapper/022:34:070
28569991310,0cyclictest0-21swapper/019:43:520
28569991310,0cyclictest0-21swapper/019:23:370
28570991210,2cyclictest0-21swapper/120:03:231
28570991210,1cyclictest2216-21apache220:13:371
28570991210,1cyclictest0-21swapper/120:58:361
28570991210,1cyclictest0-21swapper/119:33:391
28569991211,1cyclictest30751-1kworker/0:0H19:48:280
28569991210,2cyclictest0-21swapper/020:18:340
28569991210,1cyclictest2244-21apache219:08:360
28569991210,1cyclictest21345-21pidof20:13:290
28569991210,1cyclictest20224-21awk20:08:430
28569991210,1cyclictest0-21swapper/023:28:330
28569991210,0cyclictest0-21swapper/020:43:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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