Hello, Il 25/12/2012 03:22, Eric Wong ha scritto: > Any other (Free Software) applications that might benefit from > lower FADV_WILLNEED latency?
Not with fadvise but with madvise. Libreoffice / Openoffice.org have this comment:
// On Linux, madvise(..., MADV_WILLNEED) appears to have the undesirable // effect of not returning until the data has actually been paged in, so // that its net effect would typically be to slow down the process // (which could start processing at the beginning of the data while the // OS simultaneously pages in the rest); on other platforms, it remains // to be evaluated whether madvise or equivalent is available and // actually useful: See: http://cgit.freedesktop.org/libreoffice/core/tree/sal/osl/unx/file.cxx#n1213 May the same approach be extended to madvise MADV_WILLNEED? thanks, riccardo magliocchetti -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/