[Mesa-dev] [Bug 101467] swr driver leaks memory (texture management)
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Jun 28 21:10:59 UTC 2017
https://bugs.freedesktop.org/show_bug.cgi?id=101467
--- Comment #1 from Bruce Cherniak <bruce.cherniak at intel.com> ---
Well, technically the swr driver isn't "leaking" memory, it's just deferring
deletion of the underlying storage until a sync point.
Because the loop is simply:
for (bigly_number_of_textures) {
allocate_texture()
draw_something()
delete_texture()
}
read_pixels()
There is nothing forcing synchronization until the read_pixels. So, at the end
of the loop, there are 5000 free() queued up, that all get flushed on the
read_pixels. This accounts for ~20GB of allocated system memory.
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