On Tue, 21 Jan 2014, Dirk-Jan C. Binnema wrote:
I guess for the filesystem performance, we should discard the output;
and free various file-system caches; not sure how to do that on MacOS,
but on Linux ((for my 50K messages):
% sudo sh -c 'sync && echo 3 > /proc/sys/vm/drop_caches'
% time ls -R1 ~/Maildir > /dev/null
0.28s user 0.07s system 16% cpu 2.056 total
if we do it again (with a warm cache):
% time ls -R1 ~/Maildir > /dev/null
0.18s user 0.03s system 99% cpu 0.213 total
Yes I was thinking all that output could be an issue. I'm not sure how
to clear caches, but I think I haven't done it in long enough so the
cache is clear, because first run was 7 seconds and subsequent were
all <1.4 seconds.
-k.
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