[Bug 37419] Pixologic Zbrush 4R5/4R6 takes 20 minutes to load (polling via GetForegroundWindow/GetAsyncKeyState involving wineserver roundtrip too slow)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=37419

--- Comment #5 from Sebastian Lackner <sebastian at fds-team.de> ---
Some patches were added to Wine-Staging. With shared memory wineserver
communication enabled (and a recent kernel >= 3.17 with memfd support) some
functions are reduced to basically just a couple of memory accesses. For other
functions wineserver calls are only done when really necessary. The whole idea
is still in a very early stage, and will be improved over the next few
versions. Nevertheless it might be worth to test it a bit.

To apply the whole patchset (including dependencies) the easiest way is to
check out https://github.com/wine-compholio/wine-staging and use the
patchinstall.sh script, it will automatically resolve dependencies between
patchsets. Just run from the wine source tree:

.../path/to/patches/patchinstall.sh --backend=git server-Shared_Memory

This function will also run ./tools/make_requests since various updates to the
wineserver protocol are required. Afterwards, as soon as the patched version is
compiled, run it with STAGING_SHARED_MEMORY=1 set (and probably also
WINEDEBUG=+winediag to see if its actually used).

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