Hi, tcp_rmem file in /proc/sys/net/ipv4 has 3 entries, the first is the min rcvbuf that has to eb given to the ocnnections irrespective of the load conditions(min rcvbuf), the second is the value that is the default rcv_buf that shld be given, and third is the maxmimum rcvbuf. Now, sysctl_tcp_rmem contains these three values, that means the max value for wach of these three shld be sizeof(int), that is 4 bytes. but since this is signed int the max value would not be 2^32, it wld rather be 2^16-1, and that is 65535, is that not too low ?, using sysctl i can even assign a value as high has 8388608(8 MB), and maybe even higher(i have tested 8 MB). so what does the kernel do if we assign them a value greater than 2^16. rather the default vallue for the highest possible allocation is defined in the kernel as 174760. How does the kernel handle that ? I hope I clould get across my doubt clearly. thanks Amit Christophe Lucas <c.lucas@ifrance.com>@nl.linux.org on 05/27/2004 03:45:59 PM Sent by: kernelnewbies-bounce@nl.linux.org To: Amit Kumar Singh/HSS@HSS, kernelnewbies@nl.linux.org cc: Subject: Re: tcp_rmem aksingh@hss.hns.com (aksingh@hss.hns.com) wrote: > > > > > Hi cristopher , > > so that means the max length of tcp_rmem is 12 bytes, assuming 4 bytes for > an int ? It seems on x86 ;-) > > regards > Amit -- Amicalement Christophe * GNU/Linux & UNIX developer and network administrator * Membre RotomaLUG (http://www.rotomalug.org) * Registered User #271267 * Email: c.lucas@ifrance.com * Web Site: http://odie.mcom.fr/~clucas/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
