Messages in this thread | | | Subject | Re: 2.5.64-mm6 | From | Steven Cole <> | Date | 13 Mar 2003 20:04:48 -0700 |
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On Thu, 2003-03-13 at 12:34, Andrew Morton wrote: > Jeremy Fitzhardinge <jeremy@goop.org> wrote: > > > > On Thu, 2003-03-13 at 03:26, Andrew Morton wrote: > > > This means that when an executable is first mapped in, the kernel will > > > slurp the whole thing off disk in one hit. Some IO changes were made to > > > speed this up. > > > > Does this just pull in text and data, or will it pull any debug sections > > too? That could fill memory with a lot of useless junk. > > > > Just text, I expect. Unless glibc is mapping debug info with PROT_EXEC ;) > > It's just a fun hack. Should be done in glibc.
Well, fun hack or glibc to-do list candidate, I hope it doesn't get forgotten. I am happy to confirm that it did speed up the initial launch time of Open Office from 20 seconds (2.5-bk) to 11 seconds (-mm6) and Mozilla from 10 seconds (2.5-bk) to 6 seconds (-mm6).
I did run 2.5.64-mm6 with mem=64M under stress for several hours and it took a beating and kept on ticking, although quite slowly.
Steven
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