On 08/20/2012 02:57 AM, Greg Sullivan wrote: > I'm trying to do direct io (to avoid the file system cache) on Ubuntu > i386. I've tried direct=1, and tried the io engines sync and libaio - > it always seems to use the cache. > > Is there a way to bypass the file system cache on Ubuntu? I've got a > vanilla install using the automated Ubuntu installer for Windows i386 > 32-bit (dual boot). direct=1 will certainly bypass the cache on Linux, regardless of version. What makes you suspect otherwise? -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
