Hello Joel, Monday, December 12, 2005, 7:00:46 PM, you wrote: JR> 1) Processes, aka threads with single-slot in/out mailboxes are you read dewscription of my own Process library in haskell maillist? JR> One particular thing that bugs me is that I cannot really use TChan JR> for thread mailboxes. i use. but i limit number of messages in this channel by additional tools. you can easily do the same. but first ask yourself - what you will gain by this? imho, it will only help to smooth temporary speed changes. if you just want to test whether this can speed up your program - implement such limited Channel and test whether it works btw, i suggested you to try not using logging thread entirely, making all logging actions synchronously JR> I found single-slot mailboxes (TMVar) to work much better as they JR> pace the overall message flow. Using them means that asynchronous JR> messages cannot be implemented, though. not exactly. they can hold at most one message i think that your aspiration to make things asynchronous is just sort of fashion. what you really want to get? -- Best regards, Bulat mailto:bulatz@HotPOP.com