Hi, I am looking for a Linux tool to test throughput of a disk drive. I have used the following tools: iometer (sourceforge.net) IOtest (SolidData Systems) I am using them to test the raw scsi device (/dev/sda). However, due to caching (I am guessing at the block device level, and/or VFS level), the number of ios / throughput I am getting is very high (unrealistic). Fyi, my disk is very small (32 MB). How can I turn off all sorts of caching, so all reads/writes are directly to the device. Can I pass certain options to open, or change kernel to disable cache. I have no problem changing the source code of the above tools or the kernel. Any advise, links to tools would be very appreciated. Thanks, Ahmed. __________________________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo http://search.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
