Phillip Susi wrote: > I have been trying to improve boot times with ureadahead and have > identified a period of time of almost zero IO throughput caused by calls > to open() blocking during name lookup while fetching directory blocks. > At first I thought this could simply be fixed by calling readahead() on > the directories first before open()ing all of the normal files for > readahead. > > Unfortunately it seems that readahead() fails when called on a > directory. I was wondering if I could get some help understanding why > this is, and how it could be fixed. readahead() doesn't make much sense on a directory - the offset and size aren't meaningful. But does plain opendir/readdir/closedir solve the problem? -- Jamie -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
