On my project we have been heavily utilizing log4j as our logging solution.
Recently we ran our code under very heavy load so as part of our
optimization we wrote code to extract the log4j logging calls from our
source. We did this in hopes of reducing some of the overhead of
concatenation strings together thus squeezing out some performance gain.

        Much to our surprise the greatest impact was in memory usage, our memory
usage went from 1 gig to 100 meg. This order of magnitude decrease in
resource usage caught our attention to say the least. How might we be miss
using the log4j tool to cause such large memory consumption?

        We are performing small scale experiments trying to duplicate the essence
of the problem but have had little success so far. Any help or direction
will be much appreciated.

Thanks,
Jim


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