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2022-05-26 - 23:11

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 100 highest latencies:
System rackcslot2.osadl.org (updated Fri May 20, 2022 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2606227057,8sleep10-21swapper/119:08:031
2586926553,8sleep00-21swapper/019:06:010
26388991816,1cyclictest12764-21ssh23:36:421
26388991810,0cyclictest0-21swapper/121:54:511
26388991810,0cyclictest0-21swapper/119:59:511
26387991716,1cyclictest14967-21ssh22:53:040
26387991711,5cyclictest6189-21kworker/0:021:37:110
26388991615,0cyclictest30923-21ssh00:04:331
26388991614,1cyclictest31829-21ssh21:42:341
26388991614,1cyclictest19460-21smartctl20:14:451
26387991616,0cyclictest2578-21ssh23:21:510
26387991614,1cyclictest8957-21ssh23:30:520
26387991612,3cyclictest6189-21kworker/0:021:27:350
26387991610,6cyclictest0-21swapper/000:19:530
26388991515,0cyclictest0-21swapper/123:41:291
26388991514,1cyclictest7949-21ssh22:42:291
26388991514,1cyclictest29343-21ssh22:25:251
26388991510,5cyclictest0-21swapper/123:13:361
26388991510,5cyclictest0-21swapper/120:42:551
26388991510,5cyclictest0-21swapper/100:22:551
26388991510,0cyclictest0-21swapper/123:20:271
26388991510,0cyclictest0-21swapper/120:12:401
26387991515,0cyclictest22596-21smartctl21:29:470
26387991515,0cyclictest0-21swapper/023:35:420
26387991515,0cyclictest0-21swapper/021:00:300
26387991512,3cyclictest6189-21kworker/0:020:41:230
26387991512,2cyclictest21408-21apache200:32:200
26387991511,4cyclictest6189-21kworker/0:020:56:590
26387991510,5cyclictest0-21swapper/023:50:540
26387991510,5cyclictest0-21swapper/020:29:560
26387991510,0cyclictest0-21swapper/022:05:590
26387991510,0cyclictest0-21swapper/021:05:510
306621410,3sleep00-21swapper/000:10:030
26388991414,0cyclictest0-21swapper/121:53:441
26388991414,0cyclictest0-21swapper/119:28:041
26388991413,1cyclictest633-21nscd19:09:451
26388991413,0cyclictest23908-21ssh21:30:461
26388991412,2cyclictest21408-21apache200:03:341
26388991412,1cyclictest9432-21/usr/sbin/munin19:49:531
26388991412,1cyclictest730-21snmpd20:54:351
26388991412,1cyclictest633-21nscd23:28:171
26388991412,1cyclictest20625-21uptime22:59:531
26388991412,1cyclictest19966-21diskmemload00:36:391
26388991411,2cyclictest93650irq/99-eth0-rx-23:46:031
26388991410,4cyclictest0-21swapper/123:30:291
26388991410,4cyclictest0-21swapper/119:39:421
26388991410,3cyclictest0-21swapper/123:05:301
26388991410,3cyclictest0-21swapper/100:24:571
26388991410,1cyclictest24598-21kworker/u4:123:15:351
26388991410,0cyclictest0-21swapper/100:10:451
26387991414,0cyclictest11762-21ssh22:48:390
26387991414,0cyclictest0-21swapper/022:25:420
26387991414,0cyclictest0-21swapper/019:45:190
26387991412,2cyclictest6189-21kworker/0:020:11:470
26387991412,2cyclictest0-21swapper/020:19:120
26387991412,1cyclictest93750irq/100-eth0-rx21:40:100
26387991412,1cyclictest6289-21sh00:16:260
26387991412,1cyclictest28400-21ssh23:12:380
26387991412,1cyclictest21408-21apache220:04:250
26387991411,2cyclictest93750irq/100-eth0-rx22:00:240
26387991410,3cyclictest6189-21kworker/0:000:37:070
26387991410,3cyclictest0-21swapper/020:34:440
26387991410,1cyclictest13085-21kworker/u4:223:57:100
26387991410,0cyclictest0-21swapper/022:41:390
2567621410,3sleep00-21swapper/023:09:240
163512140,0sleep10-21swapper/120:04:551
2653221310,2sleep00-21swapper/022:21:520
26388991312,1cyclictest633-21nscd21:14:491
26388991312,1cyclictest21408-21apache222:05:341
26388991312,1cyclictest21408-21apache200:29:541
26388991312,1cyclictest21387-21apache200:16:021
26388991311,2cyclictest8030-21/usr/sbin/munin21:09:431
26388991311,1cyclictest31087-21/usr/sbin/munin22:29:501
26388991311,1cyclictest21408-21apache222:49:471
26388991311,1cyclictest21408-21apache222:34:331
26388991311,1cyclictest21387-21apache219:19:371
26388991311,1cyclictest19873-21python21:24:511
26388991311,1cyclictest18429-21cut22:09:511
26388991311,1cyclictest17385-21ssh22:55:291
26388991310,3cyclictest0-21swapper/123:56:171
26388991310,3cyclictest0-21swapper/121:35:391
26388991310,3cyclictest0-21swapper/120:49:571
26388991310,3cyclictest0-21swapper/120:29:451
26388991310,3cyclictest0-21swapper/120:24:461
26388991310,3cyclictest0-21swapper/119:29:441
26388991310,3cyclictest0-21swapper/119:14:531
26388991310,2cyclictest21408-21apache221:44:361
26388991310,1cyclictest93650irq/99-eth0-rx-22:19:351
26388991310,1cyclictest12239-21ssh22:00:301
26388991310,1cyclictest0-21swapper/123:49:481
26388991310,1cyclictest0-21swapper/122:46:371
26388991310,1cyclictest0-21swapper/122:14:371
26388991310,0cyclictest0-21swapper/121:20:361
26388991310,0cyclictest0-21swapper/119:56:061
26387991312,1cyclictest6189-21kworker/0:019:34:430
26387991312,1cyclictest21408-21apache222:55:370
26387991312,1cyclictest21408-21apache221:50:500
26387991312,1cyclictest21408-21apache200:00:130
26387991312,1cyclictest21387-21apache222:35:210
26387991312,1cyclictest21387-21apache221:54:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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