RE: KAIO: Interesting article.
Posted in 2000
> -----Original Message----- > From: smooth1 [mailto:smooth1@iclway.co.uk] > Sent: Tuesday, August 08, 2000 6:46 PM > To: informix-list@iiug.org > Subject: KAIO: Interesting article. > > > > Hi guys, > > Found this > > http://www.sunworld.com/sunworldonline/swol-07-1998/swol-07-in > sidesolaris.ht > ml > > though peope who are into KAIO vs using AIO VPs might be > interested.... > > Proof, once and forall(-ish!) that at least for the latest version of > Solaris that ...KAIO IS FASTER.. > > "5-6% on small lightly loaded systems..As the size of the > system (number of > processors and amount of RAM) increases, and the number of async I/O > requests (load) grows, the kaio approach delivers much more scalable > performance, with improvements measuring up to 30 percent under some > benchmarks. Your mileage will, of course, vary. " > > > "While the creation of a pool of worker threads up front helps provide > better scalability for the user-threads async I/O facility, it still > involves more overhead and a longer code path than kernel async I/O. " > > David. > > PS Why have no-one replied about the missing FAQ updates... > Hello, Art , John L, the Clown...are you receiving me?? > Anyone out there??? HEEEEELP! > What 'missing FAQ updates'??? John Carlson Informix DBA EDS - WHSmith USA 3200 Windy Hill Road, Suite 1500 West Atlanta, GA 30330