[web-devel] Caching the System time

Kazu Yamamoto ( 山本和彦 ) kazu at iij.ad.jp
Wed Aug 10 07:07:50 CEST 2011


> replace the MVar handle with an IORef [Data.Sequence.Seq String]
> logs are appended with atomicModifyIORef
> then every n seconds, a worker thread uses atomicModifyIORef to clear the sequence and write the log messages to a handle? 
> this way, logging a message doesn't require taking an mvar

It would be faster. But we need to implement a special flush system
for process termination. I will try to implement if time allows.


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