Could you Check the sort of load that your server machine is able to take. The site you would be looking at is http://www.petefreitag.com/item/689.cfm. I think if the network is rejecting the select call, As the socket is not getting created. Other wise it would wait to the required 2 Second limit set by you. Also are you sure of the bind part of the socket creation. Making it threaded is an option. Thanks, Sujit On Thu, Sep 10, 2009 at 4:17 PM, Jürgen Mell <mell@xxxxxxxxxxxxxxxxxxx> wrote: > Hi, > > I have an application which connects via a network socket to a server > running on the same machine (IP 127.0.0.1) This application uses the > function 'select' to wait for new data from the server or until a two > seconds timeout. This works well until there is network traffic on the > external network interfaces (eth* or WLAN). When there is network traffic on > the external interfaces, the select function does not wait anymore but it > returns with a return code of zero, indicating not data available on the > socket. This happens nearly immediately (after 8 to 9 microseconds) and not > after the specified two seconds interval. The timeout parameter of select is > updated accordingly (it shows eg. 1 s 999991 us). > Up to now I could not test this with another kernel but I will try to do it > this afternoon. Are there any known problems with select? Is there any way > to circumvent this? > > Any help would be greatly appreciated! > > Jürgen > > -- > Jürgen Mell (Software-Entwicklung) mell@xxxxxxxxxxxxxxxxxxx > Tel.: +49-511-762-18226 http://www.hedrich-winding.com > FAX : +49-511-762-18225 > Mobil: +49-160-7428156 > ---------------------------------------------------------------------------- > HEDRICH winding systems GmbH > An der Universität 2 (im PZH) > D-30823 Garbsen (GERMANY) > ---------------------------------------------------------------------------- > Geschäftsführer: Karsten Adam > Handelsregister: Wetzlar, HRB 4768 > Steuernr.: 020/235/20110 USt-IdNr.: DE 258258279 > ---------------------------------------------------------------------------- > > -- > To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- -- Sujit K M blog(http://kmsujit.blogspot.com/) -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html