--- On Mon, 11/12/12, Alan Cox <[email protected]> wrote:
> From: Alan Cox <[email protected]> > Subject: Re: Memory reserves or lack thereof > To: "Konstantin Belousov" <[email protected]> > Cc: "Sushanth Rai" <[email protected]>, [email protected], > [email protected], "StevenSears" <[email protected]>, > "[email protected]" <[email protected]> > Date: Monday, November 12, 2012, 3:10 PM > On 11/12/2012 3:48 PM, Konstantin > Belousov wrote: > > On Mon, Nov 12, 2012 at 01:28:02PM -0800, Sushanth Rai > wrote: > >> This patch still doesn't address the issue of > M_NOWAIT calls driving > >> the memory the all the way down to 2 pages, right ? > It would be nice to > >> have M_NOWAIT just do non-sleep version of M_WAITOK > and M_USE_RESERVE > >> flag to dig deep. > > This is out of scope of the change. But it is required > for any further > > adjustements. > > I would suggest a somewhat different response: > > The patch does make M_NOWAIT into a "non-sleep version of > M_WAITOK" and does reintroduce M_USE_RESERVE as a way to > specify "dig deep". > > Currently, both M_NOWAIT and M_WAITOK can drive the > cache/free memory down to two pages. The effect of the > patch is to stop M_NOWAIT at two pages rather than allowing > it to continue to zero pages. Thanks for the correction. I was associating VM_ALLOC_SYSTEM with just M_NOWAIT as it seemed in the first verion of the patch. Sushanth _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[email protected]"
