Hi. I see InnoDB uses Asynchronous IO on Windows NT but not on Linux. There are patches, made by SGI, which enables asynchronous IO on Linux 2.4 (http://oss.sgi.com/projects/kaio/).
Are there any plans to support native asynchronous IO in InnoDB? Quoted from the project site: Preliminary experience with KAIO have shown over 35% improvement in database performance tests. Unit tests (which only perform I/O) using KAIO and Raw I/O have been successful in achieving 93% saturation with 12 disks hung off 2 X 40 MB/s Ultra-Wide SCSI channels. We believe that these encouraging results are a direct result of implementing a significant part of KAIO in the kernel using split-phase I/O while avoiding or minimizing the use of any globally contented locks. -- Per Andreas Buer sql,query,queries,smallint --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
