-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Am 2013-09-04 16:30, schrieb Vedran Rodic: > Using a blit copy to avoid stalling on 12b glBufferSubData() to a > busy buffer object. The long term plan is to use GL_ARB_buffer_storage to create buffers that can be used for rendering while mapped. That avoids the doublebuffered buffer thing and glBufferSubData calls.
I don't know exactly what the driver means with "blit copy", but I guess it creates an additional copy of the new data rather than writing it to the mmap()ed GPU memory directly. It shouldn't hurt too much. > I'm not sure how much this really impacts performance, but even > with my Dota 2 wine perf hacks [1] it's not faster than current > Wine git (performance is very similar). Mostly the nvidia blob on Linux, but also some testing on OSX. I got a lot of reports of crashes on Mesa. I think there are race conditions in the driver that won't go away until I've moved all GL calls into the worker thread. Are you GPU or CPU limited? If you're GPU limited, those patches won't change anything. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.20 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJSJ74YAAoJEN0/YqbEcdMwtOEP/R70M0MDrQcwwYVfE6JO5oqN ilBs6sWjcYing2ynTwD7jjHjEK9HuO89gOmVW1khD/gBEPAwSomrCW9AHQKhDUra ycx9smrE9zqejBvpXSPYQQDgy9u2D6o9pY243+veAhNcuk+27GmsLBnZOWs2ggAP P93pNPCS3KTqd2aGSILqZ0fmHipommvA08ftNKfVTC7eqY7p+w6gatuJVKtjBDBd ZVo5Em4x+UCwjv0Vm/qIHiA2iaspl3aZr+TKIlmU8KuBoO/O9z4iDhHwa70YlBss mATg9yrh9eFhtIX5aIolS62GfpbmFApjzllULjJzJ0PYz51oknBAlVEG2emKvqmg JrINQJrv/u4OPBU5rOTH8A4XdAgFjN5nVVrF2Yhw6su6z7tyy2xS11kcOQiTTs9R U2s/EaqiKIrK9wu1Sq2Vwb8afoBgGB6eBTOJJTaxi7+IkbRh9KBy5EN5s38LyvMe JtxUS4zMeaIDIePM76nBYZAulo62p2vDDtrlTIigt1FZEpth3oCV9WT1l23SUV3C 8dniiSZoxOh8G2I88J3FjbWd3CaBktS6zsAUuw3r8kL/TzeOwXXVIQeZSZxd5TsN 64GmvFm7RpOncnOb09EQmlgx150jRBi9kTfDfokryfnHdNVAhamIuPxX6P8QY4bP IJL8AEIU9lLa/z4DVzWU =vcwM -----END PGP SIGNATURE-----
