[Webkit-unassigned] [Bug 219689] New: [WPE][GTK] Should enable WebProcessCache

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=219689

            Bug ID: 219689
           Summary: [WPE][GTK] Should enable WebProcessCache
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at gnome.org
                CC: bugs-noreply at webkitgtk.org, cdumez at apple.com

It looks like WPE and GTK do not enable the WebProcessCache feature added in r241556:

"""
Introduce a WebContent Process cache to reduce the number of process launches when
process swap on navigation is enabled, and to reduce the power cost of the feature.

If a WebProcess loaded pages from a single registrable domain then it is eligible
for the cache. When process-swapping on navigation to a new registrable domain, we
now attempt to retrieve a process from the cache for the domain in question instead
of always launching a new one.

The WebProcess cache currently has the following attributes:

It may contains 4 processes per GB of RAM the machine has, up to 30 processes.
WebProcesses automatically get evicted from the cache after 30 minutes.
If the application is no longer the active app, then the cache will get cleared after 5 minutes.
WebProcesses that are in the cache are reported as "(Cached)" in Activity Monitor.
The WebProcess cache is currently disabled by default and can by enabled by the
client via SPI.
"""

We probably want to have that enabled, or at least make it possible to enable it?

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