Messages in this thread | | | Subject | Re: 2.4 vm, program load, page faulting, ... | From | Alex Tomas <> | Date | 17 Mar 2003 19:50:04 +0300 |
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>>>>> wind (w) writes:
w> On Mon, Mar 17, 2003 at 11:01:31AM -0500, Rik van Riel wrote: >> On Mon, 17 Mar 2003, William Lee Irwin III wrote: >> > On Sat, 15 Mar 2003, Paul Albrecht wrote: >> > >> ... Why does the kernel page fault on text pages, present in >> the page > >> cache, when a program starts? Couldn't the pte's for >> text present in the > >> page cache be resolved when they're >> mapped to memory? >> >
w> You should ask Andrew about his patch to do exactly that: he w> forced all PROC_EXEC mmaps to be nonlinear-mapped and this forced w> all programs to suck entire binaries into memory... I recall he w> saw at least 25% improvement at launching gnome.
they talked about pages _already present_ in pagecache.
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