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Trying again to land OOM priority manager changes.
First landing failed because of an obscure problem with building linux_shared. This change passes the linux_shared trybot (and linux and linux_chromeos trybots). Changing OOM range to 0, 1000 and tweaking OOM algorithm. With this change, we now use the newer oom_score_adj file (with fallback to oom_adj when on a system that doesn't support it) so that we can take advantage of a finer range ([0, 1000] instead of [0, 15]). Also tweaked the OOM priority manager to prioritize things in a slightly different order, preferring (even more) not to kill tabs that the user has currently selected. Original review: http://codereview.chromium.org/7671033/ BUG=chromium-os:18421, chromium:65009 TEST=Ran on device, observed OOM adj values, forced OOM conditions to watch kills. Review URL: http://codereview.chromium.org/7708020 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@97888 0039d316-1c4b-4281-b951-d872f2087c98
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gspencer@google.com
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Aug 23, 2011
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