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On 5/30/07, Bogdan Harjoc <> wrote:

While writing a performance testing tool, I chose Lua to describe a set
of tests that
run in parallel.

So far things are looking great, as far as both available cpu and memory
are concerned: after increasing LUAI_MAXCSTACK, I've been testing with
concurrent and mostly idle threads, created with lua_newthread(). Memory
for these is about 350M, i.e. a little over 1KB per created thread.

After a glance at the lua_State definition, it looks like there a couple
of members
that could be left out but nothing that would noticeably reduce

Has anyone managed to create something on the order of 1,000,000
coroutines ?
If so, any tips on what to leave out from lua_State (or other places)
would be

Hi Bogdan,

I'm curious - have you considered using Stackless Python?

I've never used Stackless, but I've heard that Stackless threads
(which seem to be called Tasklets) are "just a few bytes each".