The custom zone is there for performance; Apple’s malloc is extremely fast for
repeated use of small blocks, but when I wrote that it was dismally slow for
anything like the image tile sizes I needed for scaling. Last I profiled it
(10.9 or 10.10), mine was still significantly faster. The only potential
problem is if they change the zone layout again, but the last time was in 10.8,
and I think there was enough padding in fv_zone to allow that.
FWIW, I’m running 10.11, but haven’t done much with BibDesk recently; I’m using
my old test version here and have never seen the webkit crashes, so I’ve always
assumed that was elsewhere than FileView :-). I’ve seen enough crashes due to a
stray autorelease in completely separate code to be pretty skeptical of
backtraces in finding a heap smasher. Does anyone have a file with only remote
icons that can make it reproducible?
On Mar 31, 2016, at 07:49, Christiaan Hofman
<cmhof...@gmail.com<mailto:cmhof...@gmail.com>> wrote:
Adam Maxwell, you’re still around here? On 10.11 there are quite a few reports
on crashes due to file view icons, due to invalid objects. The memory
management looks to be OK, no overrelease in sight, but apparently it does
happen. I wonder whether this has to do with the custom zone code. Perhaps in
combination with the system,’s support for ARM (even if we don’t use that).
Unfortunately I have no clue about how zones work and what’s going on in that
part. I also cannot reproduce that (for one because I still don’t have 10.11,
in part because that seems to have a pretty buggy PDFKit). Would you have any
idea about that? What’s actually the reason for the custom zone?
Christiaan
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