<div dir="ltr"><div dir="ltr">I doubt the system will be using all of that buffer. I also don't know if the issue was in the receive buffer or send buffer since I changed both at once. Many resources are available online from people who have already done much more scientific testing that indicate the default values should be increased for certain applications, which is the reason I changed it to begin with. There's no one-size-fits all for server configurations, and what works for this UDP application with a small number of clients might not work well for a different application with many TCS connections.<br></div><div dir="ltr"><br></div><div dir="ltr">"absolutely terrible" may be too strong of a way to put it, but that the before and after don't lie.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jun 12, 2020 at 4:02 PM Alex Balashov <<a href="mailto:abalashov@evaristesys.com">abalashov@evaristesys.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">But increasing the depth of the queue by 78x (if I'm not mistaken, <br>
212992 is the default--at least, it is on all my CentOS 7.x and 8.x <br><br>
</blockquote></div></div>