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2022-06-30 - 22:08

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #0, slot #1
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack0slot1.osadl.org (updated Thu Jun 30, 2022 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2743521320,0sleep70-21swapper/711:39:197
195621110,0sleep40-21swapper/407:07:114
248722700,1sleep27427-21Poller-Thread-211:24:402
159472680,0sleep30-21swapper/307:34:023
28652660,0sleep60-21swapper/610:07:136
46932650,0sleep70-21swapper/710:48:487
22915996462,1cyclictest79-21ksoftirqd/707:05:367
8432620,0sleep60-21swapper/611:27:566
23762620,0sleep70-21swapper/707:07:147
177762620,1sleep452-21ksoftirqd/412:30:184
22914996057,2cyclictest70-21ksoftirqd/607:40:346
22914996057,2cyclictest70-21ksoftirqd/607:40:346
22896995752,4cyclictest52-21ksoftirqd/407:40:344
22896995752,4cyclictest52-21ksoftirqd/407:40:344
318422560,0sleep70-21swapper/712:08:187
22883995653,2cyclictest29987-21snmpget07:05:363
18402530,0sleep00-21swapper/010:34:070
22906995250,1cyclictest61-21ksoftirqd/507:05:365
22915995147,2cyclictest79-21ksoftirqd/707:40:347
22915995147,2cyclictest79-21ksoftirqd/707:40:347
22881995149,1cyclictest34-21ksoftirqd/207:40:342
22881995149,1cyclictest34-21ksoftirqd/207:40:342
22896994945,2cyclictest52-21ksoftirqd/407:05:364
2054424923,7sleep70-21swapper/707:00:427
22879994845,2cyclictest25-21ksoftirqd/107:40:341
22879994845,2cyclictest25-21ksoftirqd/107:40:341
22915994744,2cyclictest79-21ksoftirqd/711:51:317
1817724721,7sleep10-21swapper/106:58:521
22881994644,1cyclictest34-21ksoftirqd/207:05:362
22879994543,1cyclictest25-21ksoftirqd/107:05:361
1907424419,7sleep30-21swapper/306:59:343
22915994341,1cyclictest79-21ksoftirqd/708:00:397
22878994341,1cyclictest9-21ksoftirqd/007:05:360
22914994239,2cyclictest70-21ksoftirqd/607:05:366
1816924129,7sleep60-21swapper/606:58:496
22896994038,1cyclictest52-21ksoftirqd/408:00:394
1781824020,14sleep00-21swapper/006:58:270
189792390,14sleep214050irq/24-ahci[00010:55:082
1721423918,7sleep50-21swapper/506:57:525
22896993734,2cyclictest52-21ksoftirqd/408:10:334
22896993734,2cyclictest52-21ksoftirqd/408:10:334
1844923623,7sleep40-21swapper/406:59:114
22879993532,2cyclictest25-21ksoftirqd/108:00:391
22878993532,2cyclictest9-21ksoftirqd/007:40:340
22878993532,2cyclictest9-21ksoftirqd/007:40:340
1966523522,7sleep20-21swapper/206:59:572
22915993330,2cyclictest79-21ksoftirqd/708:10:337
22915993330,2cyclictest79-21ksoftirqd/708:10:337
22896993331,1cyclictest52-21ksoftirqd/407:15:334
22906993229,2cyclictest61-21ksoftirqd/508:00:395
22881993229,2cyclictest34-21ksoftirqd/208:00:392
22883992927,1cyclictest43-21ksoftirqd/308:00:393
22906992826,1cyclictest61-21ksoftirqd/511:46:325
22906992825,2cyclictest61-21ksoftirqd/508:10:335
22906992825,2cyclictest61-21ksoftirqd/508:10:335
22896992826,1cyclictest52-21ksoftirqd/411:51:314
22881992826,1cyclictest34-21ksoftirqd/208:10:332
22881992826,1cyclictest34-21ksoftirqd/208:10:332
22914992724,2cyclictest70-21ksoftirqd/607:15:336
22896992725,1cyclictest52-21ksoftirqd/411:46:324
22881992724,1cyclictest34-21ksoftirqd/211:46:322
22883992623,2cyclictest43-21ksoftirqd/311:46:323
22878992622,2cyclictest9-21ksoftirqd/008:10:330
22878992622,2cyclictest9-21ksoftirqd/008:10:330
16392260,0sleep20-21swapper/209:40:012
96322250,0sleep30-21swapper/312:12:313
22915992523,1cyclictest79-21ksoftirqd/709:52:067
22915992522,1cyclictest79-21ksoftirqd/711:46:327
22914992522,2cyclictest70-21ksoftirqd/608:10:336
22914992522,2cyclictest70-21ksoftirqd/608:10:336
22883992523,1cyclictest43-21ksoftirqd/308:10:333
22883992523,1cyclictest43-21ksoftirqd/308:10:333
22883992523,1cyclictest43-21ksoftirqd/307:40:343
22883992523,1cyclictest43-21ksoftirqd/307:40:343
2287999250,22cyclictest29166-21QueuingRrdStrat10:35:331
2287999250,21cyclictest461-21openvpn11:42:391
22878992523,1cyclictest9-21ksoftirqd/011:51:310
22881992422,1cyclictest34-21ksoftirqd/207:15:332
22881992421,2cyclictest34-21ksoftirqd/211:51:312
2287999241,19cyclictest16033-21openvpn10:19:331
2287999240,20cyclictest8254-21sh10:50:371
22879992321,1cyclictest25-21ksoftirqd/108:10:331
22879992321,1cyclictest25-21ksoftirqd/108:10:331
22896992220,1cyclictest21213-21sshd10:56:214
2287999220,18cyclictest7723-21Collectd-Thread11:32:051
105162220,0sleep50-21swapper/510:51:505
22915992118,2cyclictest79-21ksoftirqd/710:31:587
22883992119,1cyclictest43-21ksoftirqd/307:15:333
2287999212,18cyclictest241ktimersoftd/110:54:271
22879992119,1cyclictest25-21ksoftirqd/111:51:311
2287999210,20cyclictest7424-21Poller-Thread-107:56:081
2287999210,20cyclictest7424-21Poller-Thread-107:56:081
2287999210,18cyclictest4468-21runrttasks10:23:491
2287999210,18cyclictest4468-21runrttasks10:23:491
2287999210,14cyclictest27412-21sshd11:52:391
22878992119,1cyclictest9-21ksoftirqd/007:15:330
98032200,0sleep40-21swapper/411:32:034
22896992017,1cyclictest52-21ksoftirqd/411:31:204
2289699200,18cyclictest7433-21Poller-Thread-211:01:594
22879992011,3cyclictest686-21postmaster12:30:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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