Subject: Re: increasing FD_SETSIZE to 1024 or 2048?
To: None <, jonathan@DSG.Stanford.EDU>
From: Wolfgang Solfrank <>
List: current-users
Date: 07/03/2000 18:25:08

> FD_SETSIZE is currently 256. Is there a good reason not to bump it to
> something more appropriate for today's machines, like 1024 or 2048?


> So it has a big potential payback for those who want it, at
> relatively little cost. 

Are you aware that there is nothing to stop an application to use
a larger FD_SETSIZE if it so desires?  Just #define FD_SETSIZE xxx
before the #include <sys/types.h>, and everything will work as expected.
No need to generate a new kernel or something.

IMHO that's flexible enough to get the best of both worlds (i.e. space
savings in small applications vs. support for many connections in large

ws@TooLs.DE     Wolfgang Solfrank, TooLs GmbH 	+49-228-985800