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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi Jiho,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">antivirus might be playing tricks, files in the form ClientHandlerThread-XXX-Debug.event.current.log and ClientHandlerThread-XXX-Debug.messages.current.log are constantly created.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">To avoid this, you must modify the CreateHandlerThread class by deleting the log information.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">By creating so many files, disk I / O negatively influences performance.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">At this point it is important to exclude the App directories in the antivirus configuration. (In case you don't want to customize the class)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">using perfmon.exe you can see what I say by filtering the PID of your App.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">I hope it works and tell me the results.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Sergio<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="ES">De:</span></b><span lang="ES"> Quickfixn <quickfixn-bounces@lists.quickfixn.com>
<b>En nombre de </b>Jiho HAN<br>
<b>Enviado el:</b> Friday, June 26, 2020 08:03 PM<br>
<b>Para:</b> Mailing list for QuickFIX/n <quickfixn@lists.quickfixn.com><br>
<b>Asunto:</b> SPAM{{Quickfixn}} Performance numbers, esp in VM<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">We have a need for high throughput and started looking at how to improve our FIX application.<o:p></o:p></p>
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<p class="MsoNormal">It’s mainly a drop copy scenario, basically receiving execution reports and creating orders and fills in our OMS.<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
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<p class="MsoNormal">After quite a bit of investigation, I created a sample server and client, a bare bones application that sends/receives FIX messages and see how fast we can “process” the messages.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">On my own workstation, I can get about 7000+ messages per second if I use MemoryStore/NullLog (4500 using FileStore/FileLog) – essentially trying to eliminate all I/O.<o:p></o:p></p>
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<p class="MsoNormal">However, this reduces down to about 1500 messages per second on a VM (VMWare).<o:p></o:p></p>
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<p class="MsoNormal">I see CPU only around 30% utilization and plenty of memory available on the VM while it runs.<o:p></o:p></p>
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<p class="MsoNormal">The specs of both machines are not that different.<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
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<p class="MsoNormal">Has anyone else done something similar or have similar experiences?<o:p></o:p></p>
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<p class="MsoNormal">I have no clue why this app would run so much slower on a virtual machine.<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
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<p class="MsoNormal">Jiho<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Yu Gothic",sans-serif">Classification: Public</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
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