Date: Sun, 2 Jan 2005 10:31:28 -0500 From: Bill Moran <wmoran@potentialtech.com> To: freebsd-questions@freebsd.org Subject: Re: TCPDUMP performance Message-ID: <20050102103128.10f8b9d2.wmoran@potentialtech.com> In-Reply-To: <20050102152416.65565.qmail@web51904.mail.yahoo.com> References: <20050102152416.65565.qmail@web51904.mail.yahoo.com>
next in thread | previous in thread | raw e-mail | index | archive | help
James Kilton <kilton9@yahoo.com> wrote: > Hello, > > We've installed some FreeBSD machines as Gigabit sniffers, and I'm > wondering if there are any things I can tweak (e.g., buffer size) to help > TCPDUMP capture better (we often see packets dropped by the kernel). > > Any advice would be appreciated. When using tethereal to do captures, I found that nicing the capture process reduced the incidence of dropped packets to 0. Not exactly the same circumstance, but I would guess that tcpdump would respond simularly. -- Bill Moran Potential Technologies http://www.potentialtech.com
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050102103128.10f8b9d2.wmoran>