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, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>