You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-01-27 - 16:15

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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rackaslot0.osadl.org (updated Fri Jan 27, 2023 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304222930,0sleep330404-21sshd10:02:113
89532890,1sleep20-21swapper/211:27:182
154622840,2sleep315460-21df_abs07:05:143
135132830,0sleep01745899cyclictest10:28:490
8252680,0sleep20-21swapper/209:54:002
180952580,0sleep018093-21bash10:37:410
122632570,2sleep01745899cyclictest10:48:230
168452560,0sleep20-21swapper/210:23:292
256442550,0sleep20-21swapper/211:14:492
125342550,0sleep10-21swapper/110:17:271
102472550,1sleep31787-21runrttasks11:05:003
247982540,1sleep124797-21sshd11:56:351
227212540,1sleep322695-21sshd12:04:493
227212540,1sleep322695-21sshd12:04:493
326002530,0sleep10-21swapper/110:05:131
175272530,1sleep010272-21diskmemload12:21:020
247432520,0sleep30-21swapper/310:38:173
232682520,1sleep2291ktimersoftd/210:57:422
227252520,1sleep10-21swapper/109:36:131
191732520,0sleep30-21swapper/312:12:503
190352520,0sleep310272-21diskmemload11:44:593
73842510,0sleep10-21swapper/111:52:181
188482510,0sleep018826-21sshd09:41:280
185612510,0sleep20-21swapper/212:01:372
185612510,0sleep20-21swapper/212:01:372
169102510,0sleep30-21swapper/312:26:333
31242500,1sleep13123-21sshd10:22:161
243032500,0sleep024302-21id10:18:310
212762500,1sleep28-21rcu_preempt10:04:142
17802500,1sleep30-21swapper/311:04:163
1694225028,18sleep20-21swapper/207:06:512
10512500,0sleep10-21swapper/111:01:221
10022500,0sleep30-21swapper/310:50:143
172882490,1sleep217287-21sshd11:08:242
1708324927,18sleep00-21swapper/007:08:370
155172490,1sleep31632-21sshd09:49:413
1505524926,19sleep10-21swapper/107:05:051
27632480,0sleep22742-21sshd10:47:332
268922470,0sleep00-21swapper/012:13:320
226922470,0sleep30-21swapper/311:22:563
226632470,0sleep322636-21sshd09:16:353
214242450,2sleep31746199cyclictest11:14:253
194852450,0sleep30-21swapper/310:20:493
18112430,0sleep00-21swapper/012:36:240
114972420,0sleep20-21swapper/210:06:062
1746199222,1cyclictest120050irq/25-eth009:33:003
1746199222,1cyclictest120050irq/25-eth009:33:003
17461992119,1cyclictest22700-21sshd12:32:393
1746099214,4cyclictest12150irq/23-ehci_hcd07:21:292
17458992120,1cyclictest1544-21nfsd11:27:120
17458992119,1cyclictest24724-21sshd10:55:040
315712200,1sleep231562-21sshd09:45:232
218122200,0sleep121811-21bash12:13:051
56522190,2sleep35649-21cp10:30:523
320042190,1sleep231999-21sshd10:38:562
1745899190,16cyclictest18498-21sshd11:08:310
17459991814,1cyclictest0-21swapper/112:24:001
1745899180,17cyclictest0-21swapper/009:15:410
43272170,0sleep24305-21sshd11:43:422
298272170,1sleep210272-21diskmemload09:42:272
17460991716,1cyclictest0-21swapper/210:33:442
17459991715,1cyclictest20498-21sshd09:33:151
17459991715,1cyclictest20498-21sshd09:33:151
1745899179,6cyclictest0-21swapper/012:34:500
1745899179,4cyclictest0-21swapper/009:50:390
1745899178,6cyclictest3220-21rm11:15:340
1745899173,13cyclictest0-21swapper/011:12:420
17458991710,5cyclictest0-21swapper/010:52:320
1745899170,16cyclictest0-21swapper/012:01:050
1745899170,16cyclictest0-21swapper/012:01:040
168672170,0sleep30-21swapper/310:26:153
31612160,1sleep33158-21sshd11:26:483
221962160,0sleep00-21swapper/011:00:240
186022160,0sleep018601-21sshd10:01:070
1746199162,1cyclictest120050irq/25-eth009:35:033
17459991614,1cyclictest31245-21sshd12:36:081
1745899169,3cyclictest0-21swapper/012:07:200
1745899168,3cyclictest0-21swapper/009:49:190
1745899162,1cyclictest30503-21id10:44:240
17458991612,1cyclictest0-21swapper/009:35:370
1745899160,5cyclictest0-21swapper/009:33:030
1745899160,5cyclictest0-21swapper/009:33:030
1745899160,3cyclictest0-21swapper/010:22:410
1745899160,15cyclictest17939-21sshd09:24:410
1745899160,15cyclictest14459-21sshd09:55:120
89472150,1sleep10-21swapper/111:46:481
259202150,1sleep337-21rcuc/310:07:233
25502150,0sleep00-21swapper/011:21:080
17461991512,2cyclictest5198-21bash11:54:583
1746099159,4cyclictest0-21swapper/212:26:552
1746099158,6cyclictest0-21swapper/209:30:132
1746099158,6cyclictest0-21swapper/209:30:122
1746099155,7cyclictest10238-21sshd11:21:482
1745999150,14cyclictest0-21swapper/110:41:151
1745899159,2cyclictest0-21swapper/011:51:520
1745899158,6cyclictest1641-21sshd11:40:340
1745899151,1cyclictest0-21swapper/012:27:220
1745899151,13cyclictest0-21swapper/011:35:580
1745899150,14cyclictest0-21swapper/010:32:190
1745899150,12cyclictest0-21swapper/011:55:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional