Re: When are coroutines collected?
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- Subject: Re: When are coroutines collected?
- From: David Given <dg@...>
- Date: 2008年2月27日 16:22:44 +0000
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Javier Guerra wrote:
[...]
> doing it similarly he's seeing 2.6GB... doesn't seem right.
>
> what might be the difference between yours and his test?
What I've got is this:
function go()
run = {}
for i=1, 1000000 do table.insert(run,
coroutine.create(function() end)) end
print(coroutine.status(run[1]))
for k,v in ipairs(run) do coroutine.resume(v) end
print(coroutine.status(run[1]))
run = {}
for a in io.open("/proc/self/maps"):lines() do print(a) end
end
(That last line is a fun hack that dumps data on all the memory segments
used by the current process. Linux only, most likely.)
If I run this with:
go() go()
...I see the heap segment at 800MB and then 1.5GB (so it doubles).
(Which indeed shows that the allocations are too small to trigger mmap()
allocation.) If I run it with:
go() collectgarbage("collect")
go() collectgarbage("collect")
...I see it remain static at 800MB.
This is Lua 5.1.2 on Ubuntu Gutsy.
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