Re: Problem with SYN cache in FreeBSD 4.5

> It appears that the primary reason a syncache abort would occur is because > the system has run out of sockets. Is kern.ipc.numopensockets approaching > kern.ipc.maxsockets? Works like a charm. Thanks! I forgot to set this when I upgraded my system from 4.3 to 4.5 release. My bad. Thanks again

Re: Problem with SYN cache in FreeBSD 4.5

Hi, On Tue, 4 Jun 2002, Mike Silbersack wrote: > > On Tue, 4 Jun 2002, jayanth wrote: > > > Can you dump the output of netstat -s -p tcp ? > > Checking for listen queue overflows and syncache bucket overflows. > > > > jayanth > Here is the output of "netstat -s -p tcp". tcp: 26413

Re: Problem with SYN cache in FreeBSD 4.5

On Mon, 3 Jun 2002, Mike Silbersack wrote: > A few questions: > > 1. Is this 4.5-release, or 4.5-stable (aka 4.6-RC2)? 4.5-release had a > few bugs in the syn cache which could cause crashes. > > 2. Are you using accept filters? Accept filters act oddly on > 4.5-release, you'll have to upgr

Problem with SYN cache in FreeBSD 4.5

Hi all, Our group has a proprietary web server that can handle 1 requests/s under FreeBSD 4.3 release. We recently upgraded our system to 4.5 and got very poor performance. While the web server runs, I see lots of messages similar to the following on the console "Limiting open port RST respon

Periodic task

Hi all, I run experiments to measure the stability of router queue length. In my experiment set up, I have 7 clients and 7 servers connected to a router via an ELS-100 switch. The 7 clients and 7 servers establish long-lived TCP connections and saturate the router's 10 Mbit link. All machines run

ECN implementation

Hi all, Now that ECN has become an IETF standard RFC, I just wonder what is the status of the ECN implementation in FreeBSD hosts. I know that it used to be part of the ALTQ patch but its implementation seem to be stopped in the recent ALTQ versions. Please kindly send your reply to me since I a

Re: Connect(2) problem

ctl or do your own port management. > > Alex. > > On Tue, 9 Oct 2001, Nguyen-Tuong Long Le wrote: > > > Hi all, > > > > I have a software that simulates web clients and servers to create > > network congestion (for the purpose of doing research in network >

Connect(2) problem

Hi all, I have a software that simulates web clients and servers to create network congestion (for the purpose of doing research in network congestion). In our experiment, a client opens an HTTP connection to a server, fetches a number of objects, and then closes the connection. A problem I seem

Re: FD_SETSIZE

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FD_SETSIZE

Hi, I am wondering what is the side effects of increasing FD_SETSIZE beyond 1024? Our group have a propiertary web server software that handles a large number of sockets. While increasing the kern.maxfiles and kern.maxfilesperproc gives our web server more connections, select() seems to fail if t