-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hmm, seems lio_listio is just what I need, except that I can't find any documentation on how it handles an O_NONBLOCK socket - is that flag honored, or ignored?
Regards, - -- Saso Steven Stallion wrote: > Steven Stallion wrote: >> Saso Kiselkov wrote: >>> -----BEGIN PGP SIGNED MESSAGE----- >>> Hash: SHA1 >>> >>> Hi, >>> >>> I'm currently trying to optimize my multicast UDP streaming application >>> as much as I can, and was wondering if there is a way to read() multiple >>> pending packets from the socket layer. I'm trying to squeeze every last >>> bit of performance out of the machine (Netra 240), since I'm trying to >>> receive a stream of several hundred Mbit/s worth of TV channels for >>> integrity monitoring. >> Look into the various iovec operations (i.e. readv). Minor nit, you are >> not streaming, you are sending datagrams - don't expect to achieve >> maximum throughput, especially via multicast. > > I should probably follow this up; readv calls will still only read a > single packet at a time, however it will read into a preallocated buffer > you can use for scatter/gather. Buffer management is *critical* for > achieving high performance I/O. > > Another option is to look into POSIX.4 AIO; AIO can reduce context > switches significantly. > > Steve -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAktJwsIACgkQRO8UcfzpOHApVgCgyCmCvL7aBPha1IHUH+xxeL6Q aaoAnjHNaFJPvWmcFwKaZ9SvozocEL1g =5BWt -----END PGP SIGNATURE----- _______________________________________________ networking-discuss mailing list networking-discuss@opensolaris.org
