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This allows userspace (DiscardableMemoryManager) to control eviction of
unlocked DiscardableMemory instances to prevent the process from running out of
address space in cases of heavy use of unlocked DiscardableMemory.
This also removes all the occurences of 'Android' from the ashmem allocator to
allow it to be later used on ChromeOS.
BUG=327516, 334996
TBR=willchan@chromium.org
Review URL: https://codereview.chromium.org/253323002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@267211 0039d316-1c4b-4281-b951-d872f2087c98
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> Use DiscardableMemoryManager on Android.
>
> This allows userspace (DiscardableMemoryManager) to control eviction of
> unlocked DiscardableMemory instances to prevent the process from running out of
> address space in cases of heavy use of unlocked DiscardableMemory.
>
> This also removes all the occurences of 'Android' from the ashmem allocator to
> allow it to be later used on ChromeOS.
>
> BUG=327516, 334996
> R=reveman@chromium.org, willchan@chromium.org
>
> Review URL: https://codereview.chromium.org/195863005
TBR=pliard@chromium.org
Review URL: https://codereview.chromium.org/257383004
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@267175 0039d316-1c4b-4281-b951-d872f2087c98
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This allows userspace (DiscardableMemoryManager) to control eviction of
unlocked DiscardableMemory instances to prevent the process from running out of
address space in cases of heavy use of unlocked DiscardableMemory.
This also removes all the occurences of 'Android' from the ashmem allocator to
allow it to be later used on ChromeOS.
BUG=327516, 334996
R=reveman@chromium.org, willchan@chromium.org
Review URL: https://codereview.chromium.org/195863005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@267170 0039d316-1c4b-4281-b951-d872f2087c98
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Each DiscardableMemoryMalloc instance uses a separate malloc() allocated block
of memory. It's allocated on Lock() and freed on Unlock().
This is useful to test how discardable memory clients perform in situations
when the memory pressure is high. The base class will also be used by other
discardable memory implementations as a fall-back when failing to
allocate/lock native discardable memory.
BUG=334996
TEST=base_unittests --gtest_filter=DiscardableMemoryTests*
Review URL: https://codereview.chromium.org/145643008
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@250167 0039d316-1c4b-4281-b951-d872f2087c98
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emulating discardable memory.
Memory pressure listeners need to be created on a thread with a message
loop current. Discardable memory is often used on worker threads that
don't have a message loop and with the current system where listeners
are registered on first use, the result is that we're most likely never
notified of memory pressure.
This adds a function to the discardable memory interface that allows us
to register memory pressure listeners on a thread, and at a time, when
we know a message loop is current.
BUG=332570
TBR=jamesr@chromium.org
Review URL: https://codereview.chromium.org/129963002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244641 0039d316-1c4b-4281-b951-d872f2087c98
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Causing webkit_unit_tests to fail.
> base: Fix registering of memory pressure listeners used when emulating discardable memory.
>
> Memory pressure listeners need to be created on a thread with a message
> loop current. Discardable memory is often used on worker threads that
> don't have a message loop and with the current system where listeners
> are registered on first use, the result is that we're most likely never
> notified of memory pressure.
>
> This adds a function to the discardable memory interface that allows us
> to register memory pressure listeners on a thread, and at a time, when
> we know a message loop is current.
>
> BUG=332570
> TBR=jamesr@chromium.org
>
> Review URL: https://codereview.chromium.org/129963002
TBR=reveman@chromium.org
Review URL: https://codereview.chromium.org/135113003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244278 0039d316-1c4b-4281-b951-d872f2087c98
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discardable memory.
Memory pressure listeners need to be created on a thread with a message
loop current. Discardable memory is often used on worker threads that
don't have a message loop and with the current system where listeners
are registered on first use, the result is that we're most likely never
notified of memory pressure.
This adds a function to the discardable memory interface that allows us
to register memory pressure listeners on a thread, and at a time, when
we know a message loop is current.
BUG=332570
TBR=jamesr@chromium.org
Review URL: https://codereview.chromium.org/129963002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244229 0039d316-1c4b-4281-b951-d872f2087c98
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This adds a DiscardableMemoryType enum and a function that
can be used to select what type of discardable memory to
use. This is generally useful for debugging purposes and
when evaluating the performance of one implementation vs
another.
The unit test framework for discardable memory is improved
slightly by testing every supported type on each platform
rather then just the one specific type.
Furthermore, it allows us to expose ashmem based
discardable memory on ChromeOS in about:flags before we
make it default.
No change in behavior unless the new
--use-discardable-memory=type switch is used.
BUG=327516
TEST=base_unitttest --gtest_filter=DiscardableMemory*
TBR=tomhudson@google.com
Review URL: https://codereview.chromium.org/114923005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243532 0039d316-1c4b-4281-b951-d872f2087c98
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platforms.
This also moves DiscardableMemory::CreateLockedMemory implementations
to platform specific files and allows us to choose what implementation
to use at runtime.
No change in behavior, refactor only.
BUG=327516
TEST=base_unitttest --gtest_filter=DiscardableMemory*
Review URL: https://codereview.chromium.org/111713008
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240924 0039d316-1c4b-4281-b951-d872f2087c98
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