Messages in this thread | | | Date | Thu, 29 Apr 2004 17:32:23 -0700 | From | Andrew Morton <> | Subject | Re: ~500 megs cached yet 2.6.5 goes into swap hell |
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Andy Isaacson <adi@hexapodia.org> wrote: > > But in a related case, I have a background daemon that does a lot of IO > (mostly sequential, one page at a time read/modify/write of a multi-GB > file) to a filesystem on a separate spindle from my main filesystems. > I'd like to use a similar mechanism to say "don't let this program eat > my pagecache" that will let the daemon crunch away without severely > impacting my desktop work.
fadvise(POSIX_FADV_DONTNEED) is ideal for this. Run it once per megabyte or so. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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