D23514: [platforms/x11] Never block on retrace, always present after paint

[Vlad Zahorodnii]

zzag added a comment.


  My concerns about performance regression introduced by this patch haven't been addressed. The time span during which kwin records rendering commands slides gradually over time, it's not aligned to vblank.

REVISION DETAIL
  https://phabricator.kde.org/D23514

To: romangg, #kwin
Cc: zzag, alexeymin, kwin, LeGast00n, The-Feren-OS-Dev, sbergeron, jraleigh, fbampaloukas, GB_2, mkulinski, ragreen, jackyalcine, iodelay, crozbo, bwowk, ZrenBot, ngraham, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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