[Webkit-unassigned] [Bug 249915] Don't update MemoryCache during drawImage if the image is decoded into DiscardableMemory

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=249915

Alexey Proskuryakov <ap at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #4 from Alexey Proskuryakov <ap at webkit.org> ---
While I don't have an answer about "discardable memory", I don't think that this optimization applies to WebKit, because CachedResource::didAccessDecodedData is already quick when the resource is not in cache:


void CachedResource::didAccessDecodedData(MonotonicTime timeStamp)
{
    m_lastDecodedAccessTime = timeStamp;

    if (allowsCaching() && inCache()) {
        auto& memoryCache = MemoryCache::singleton();
        if (memoryCache.inLiveDecodedResourcesList(*this)) {
            memoryCache.removeFromLiveDecodedResourcesList(*this);
            memoryCache.insertInLiveDecodedResourcesList(*this);
        }
        memoryCache.pruneSoon();
    }
}

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