Messages in this thread | | | Date | Fri, 7 May 2004 18:43:28 +0100 (BST) | From | Hugh Dickins <> | Subject | Re: ~500 megs cached yet 2.6.5 goes into swap hell |
| |
On Fri, 7 May 2004, Timothy Miller wrote: > > > >>>Perhaps what we really want is "swap_back_in" script? That way you > >>>could do "updatedb; swap_back_in" in cron and be happy. > >> > >>swapoff -a; swapon -a > > Wouldn't this also be a problem if you are using more memory than you > have physical RAM?
On 2.4 it certainly would be a problem (hang with others OOM-killed).
On 2.6 it shouldn't be a problem: the swapoff may fail upfront if there's way too little memory, or it may get itself OOM-killed if it runs out on the way, but it ought not to upset other tasks.
But of course, Pavel is right that it does nothing for file backed.
Hugh
- 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/
| |