Date: Mon, 24 Jun 1996 20:23:33 -0300 From: compland@ism.com.br (Helio Coelho Jr. - CompuLand Informatica) To: Joao Carlos Mendes Luis <jonny@gaia.coppe.ufrj.br> Cc: questions@freebsd.org Subject: Re: curious ping Message-ID: <199606242323.UAA24762@unix1.ism.com.br>
next in thread | raw e-mail | index | archive | help
>#define quoting(Helio Coelho Jr. - CompuLand Informatica) >// Hi: >// >// I have two machines attached to a hub. Both using SMC Etherpower. If I >// ping from machine "A" to machine "B", with the smallest packet size >// (64bytes), I got lots >// of lost packets (about 30-40%). But if I raise it just a little bit >// (108bytes) no >// packet lost! Why this happens ? > > You didn't talk about the traffic load. One of the limiting factors >of network processing is packet processing, meaning that bursts of small >packets demand more CPU to process than large packets. This could be >your problem, if your receiving CPU cannot deal with the suplied small >packets traffic. It happens with or without traffic! Helio.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199606242323.UAA24762>