For the record: the aquarium demo is known to perform much better on chrome, on all platform (also win/mac) and there are a bunch of issues for that already. I remember having read that it's about spidermonkey vs v8, but on a short search I could only find e.g. bug 1663084 Anyhow, all I wanted to say is that for this specific demo the result is expected - and it's most likely not something we can fix in the dmabuf code.
Bug 1684224 Comment 4 Edit History
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For the record: the aquarium demo is known to perform much better on chrome (on high fish counts), on all platform (also win/mac) and there are a bunch of issues for that already. I remember having read that it's about spidermonkey vs v8, but on a short search I could only find e.g. bug 1663084 Anyhow, all I wanted to say is that for this specific demo the result is expected - and it's most likely not something we can fix in the dmabuf code.