On 13/09/2009 07:45, Belka wrote:
Hello, Haskell Cafe!
I used an MVar to signalize to many threads, when it's time to finish their
business (I called it a LoopBreaker). Recently I realized, that it might be
too expensive (to use MVar) for cases when threads are many and all of them
read my
Hello Simon,
Wednesday, September 16, 2009, 7:05:04 PM, you wrote:
1. Might readMVar really be computationally expensive under heavy load,
(with all it's wonderful blocking features)? How much (approximately) more
expensive, comparing to a assembler's mov?
Probably 10-100 times more
Bulat Ziganshin wrote:
i suggest you to use IORef Bool instead - as it was said once by
SimonM, it's safe to use in m/t environment, of course without all
fancy features of MVar locking
Is it also safe for other types such as Int? And is this documented
somewhere? If not it would be helpful to
Hello Felix,
Monday, September 14, 2009, 2:39:17 AM, you wrote:
i suggest you to use IORef Bool instead - as it was said once by
SimonM, it's safe to use in m/t environment, of course without all
fancy features of MVar locking
Is it also safe for other types such as Int? And is this
