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2023-05-31 - 02:02

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #a, slot #0
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 -h400 -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 rackaslot0.osadl.org (updated Tue May 30, 2023 12:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
307312930,0sleep10-21swapper/110:11:291
292342910,0sleep129235-21bash10:42:551
23732830,0sleep10-21swapper/112:24:241
280562650,0sleep228052-21bash10:51:122
74242620,1sleep07405-21sshd10:29:470
244122600,1sleep324403-21sshd11:47:063
237262590,2sleep02754399cyclictest09:10:190
17172590,1sleep11713-21sshd09:17:381
127732590,2sleep02754399cyclictest11:43:180
69242570,5sleep230-21ksoftirqd/212:30:232
281712570,1sleep08-21rcu_preempt09:36:000
27772570,1sleep00-21swapper/010:11:560
2702725628,9sleep00-21swapper/007:06:480
2719825533,18sleep20-21swapper/207:09:002
197032550,1sleep228-21rcuc/210:07:182
50562540,0sleep20-21swapper/209:24:192
95992530,0sleep30-21swapper/311:37:243
279982530,0sleep027994-21sshd09:49:060
200922530,1sleep11770-21runrttasks10:22:241
72032510,1sleep17183-21sshd10:57:521
45562510,1sleep24554-21sshd10:32:172
246962510,2sleep10-21swapper/112:34:461
15622510,1sleep31561-21bash10:57:233
6862500,0sleep10-21swapper/109:55:591
6862500,0sleep10-21swapper/109:55:591
2515325027,19sleep10-21swapper/107:05:091
230572490,0sleep30-21swapper/312:29:003
93612480,1sleep10-21swapper/112:25:011
42862480,0sleep00-21swapper/009:50:020
285012480,0sleep10-21swapper/112:01:261
97092470,0sleep10-21swapper/111:54:161
97072470,0sleep00-21swapper/010:03:110
2695124725,18sleep30-21swapper/307:05:523
279722460,0sleep00-21swapper/009:42:290
216942460,0sleep30-21swapper/311:18:493
21192460,0sleep10-21swapper/109:27:081
129842460,0sleep212983-21id11:23:462
44852440,1sleep24482-21sshd09:43:222
174452440,0sleep00-21swapper/011:35:210
205342420,0sleep20-21swapper/212:00:432
42702410,0sleep010-21rcuc/012:35:410
42702410,0sleep010-21rcuc/012:35:410
250382410,0sleep125004-21sshd10:01:281
208442260,0sleep120843-21id11:04:451
99832230,0sleep20-21swapper/210:38:262
27546992018,1cyclictest23978-21apache_volume11:30:193
2754699200,1cyclictest26332-21sshd09:26:183
75672190,1sleep17565-21sshd11:26:011
53562190,1sleep30-21swapper/309:43:283
27545991917,1cyclictest12588-21sshd11:06:472
2754599190,0cyclictest0-21swapper/212:08:092
27544991917,1cyclictest3989-21sshd09:11:291
41002180,0sleep30-21swapper/310:32:143
2754499186,9cyclictest21-21ksoftirqd/109:36:021
2754499185,3cyclictest14642-21sshd11:37:501
2754399183,12cyclictest22062-21sshd12:34:330
253402180,0sleep041ktimersoftd/011:05:080
27545991714,2cyclictest0-21swapper/211:55:402
27544991715,1cyclictest19075-21sshd11:18:361
2754399177,5cyclictest8201-21bash09:59:570
2754399177,5cyclictest8201-21bash09:59:560
27543991710,6cyclictest28854-21sshd10:45:370
27545991615,1cyclictest0-21swapper/211:54:492
2754499169,1cyclictest118950irq/25-eth011:10:311
2754499164,10cyclictest21-21ksoftirqd/112:38:591
2754499164,10cyclictest21-21ksoftirqd/112:38:581
27544991614,1cyclictest23292-21sshd11:24:401
2754499160,1cyclictest118950irq/25-eth011:49:561
2754399169,4cyclictest0-21swapper/011:27:290
2754399165,7cyclictest0-21swapper/010:56:340
2754399164,5cyclictest21006-21sshd11:58:000
2754399162,5cyclictest0-21swapper/010:07:500
27543991614,1cyclictest31375-21sshd10:34:410
2754399160,14cyclictest0-21swapper/012:27:340
23412160,0sleep32339-21bash09:20:523
200642160,0sleep320230-21diskmemload09:48:173
45942150,0sleep20-21swapper/211:48:122
2754699150,12cyclictest0-21swapper/309:50:073
2754599150,14cyclictest16539-21sshd10:19:162
2754599150,14cyclictest0-21swapper/210:14:272
2754499155,1cyclictest21-21ksoftirqd/109:52:531
2754499153,1cyclictest118950irq/25-eth012:05:461
27544991511,1cyclictest118950irq/25-eth011:40:521
2754499150,4cyclictest0-21swapper/110:45:011
2754499150,14cyclictest14095-21id11:32:131
2754399159,6cyclictest0-21swapper/007:10:560
2754399159,3cyclictest0-21swapper/012:18:050
2754399158,6cyclictest12991-21bash10:44:210
2754399155,5cyclictest0-21swapper/011:34:130
2754399152,9cyclictest0-21swapper/008:21:200
27543991511,3cyclictest0-21swapper/010:54:510
2754399151,11cyclictest20189-21sshd11:13:040
27543991511,1cyclictest0-21swapper/011:19:340
2754399150,14cyclictest20230-21diskmemload12:08:340
2754399150,12cyclictest21064-21sshd11:49:410
2754399150,12cyclictest0-21swapper/012:21:320
2754399150,11cyclictest22362-21sshd12:03:450
115412150,0sleep00-21swapper/010:35:410
2754699149,4cyclictest0-21swapper/310:41:083
2754699148,5cyclictest0-21swapper/311:58:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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