[Webkit-unassigned] [Bug 164052] New: [GTK] Since the memory pressure relief has been activated, my disk has a high usage and the desktop stalls

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=164052

            Bug ID: 164052
           Summary: [GTK] Since the memory pressure relief has been
                    activated, my disk has a high usage and the desktop
                    stalls
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: agomez at igalia.com
                CC: bugs-noreply at webkitgtk.org

The memory pressure relief was activated recently in WKGTK+

Using Ephy, every time it takes action, I can see something like this:

Memory pressure relief: Empty the PageCache: =dirty (at 8351166464 bytes)
Memory pressure relief: Prune MemoryCache live resources: =dirty (at 8351166464 bytes)
Memory pressure relief: Drain CSSValuePool: =dirty (at 8351166464 bytes)
Memory pressure relief: Discard StyleResolvers: =dirty (at 8351166464 bytes)
Memory pressure relief: Discard all JIT-compiled code: =dirty (at 8351166464 bytes)
Memory pressure relief: Dropping buffered data from paused media elements: =dirty (at 8351166464 bytes)
Memory pressure relief: Purge inactive FontData: =dirty (at 8351166464 bytes)
Memory pressure relief: Clear WidthCaches: =dirty (at 8351166464 bytes)
Memory pressure relief: Discard Selector Query Cache: =dirty (at 8351166464 bytes)
Memory pressure relief: Prune MemoryCache dead resources: =dirty (at 8351166464 bytes)
Memory pressure relief: Prune presentation attribute cache: =dirty (at 8351166464 bytes)
Memory pressure relief: Run malloc_trim: =dirty (at 8351166464 bytes)
Memory pressure relief: Release free FastMalloc memory: =dirty (at 8351166464 bytes)


The mechanism is definitively good but the problem is when it doesn't succeed on freeing much memory. What it happens is that gets in action again, and again, and again, not achieving much but making my hard drive get crazy and, therefore, almost stalling my whole desktop.

Sometimes, at some point it stops and I can retake the usage of the desktop but any action that I do in Ephy triggers again the memory pressure relief and I have to wait for some more minutes in hope that I will recover control over my desktop.

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