Ruby - logging in time-critical multithreading application -

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i have log activity of application runs in many threads. best approach that? not possible threads log 1 file, because lock each other? best use separate file each thread then?

i use within method called threads @ moment:

     f=file.open(...)      f.puts "log message"      f.close

all threads calling method. append thread number file name every thread creates own file. method called when thread calls , gives new information log. method opens file, writes information , closes again. opening , closing of file time-consuming in time-critical application? or not concerned of?


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