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This is a discussion on linux writing often on main disk within the Linux Programming forums, part of the Platform Specific Boards category; oh that's cool but it then prevents me from measuring the time for writing to the hard disk!!...
oh that's cool but it then prevents me from measuring the time for writing to the hard disk!!
No, but it may prevent you from getting an accurate measurement for a short sequence of writes.Originally Posted by mynickmynick
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Mats
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.
You can get around this by making your test use direct IO. Open the file with the O_DIRECT option set, and it wont cache the writes. Keep in mind that you will need to make all your writes page aligned (usually 4096 bytes).
