RESOLVED DUPLICATE of bug 18955 18956
CachedScript and CachedCSSStyleSheet double-retain memory 
https://bugs.webkit.org/show_bug.cgi?id=18956
Summary CachedScript and CachedCSSStyleSheet double-retain memory
Mike Belshe
Reported 2008-05-08 16:05:18 PDT
CachedScript and CachedCSSStyleSheet both derive from CachedResource. CachedResource contains a StringBuffer m_data. Internally, when data is assigned to the CachedScript and CachedCSSStyleSheet, they decode the m_data buffer, and store the result into a private string (m_script and m_sheet, respectively). Thus, each of these objects has two in-memory copies of the cached object. The m_data is actually not needed and can be removed. The only thing which uses it is the InspectorController; and that usage can be removed with a small amount of work. For www.cnn.com, this led to a 600KB footprint reduction. For www.yahoo.com, this led to a ~2MB footprint reduction. I will post a patch when it's ready.
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Mark Rowe (bdash)
Comment 1 2008-05-08 17:27:46 PDT
*** This bug has been marked as a duplicate of 18955 ***
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