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c5418a8b38
Prefer to defer activating our GEM shrinker until we have a few megabytes to free; or we have accumulated sufficient mempressure by deferring the reclaim to force a shrink. The intent is that because our objects may typically be large, we are too effective at shrinking and are not rewarded for freeing more pages than the batch. It will also defer the initial shrinking to hopefully put it at a lower priority than say the buffer cache (although it will balance out over a number of reclaims, with GEM being more bursty). v2: Give it a feedback system to try and tune the batch size towards an effective size for the available objects. v3: Start keeping track of shrinker stats in debugfs v4: Protect against finding no shrinkable objects (div-by-zero) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171013202621.7276-7-chris@chris-wilson.co.uk |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.