From f76584a57ca515ffe2a586aa05117b911f58ffea Mon Sep 17 00:00:00 2001 From: Martin Pool Date: Mon, 25 Feb 2002 18:06:33 +0000 Subject: [PATCH] Scrappy notes on hot functions that should be fixed --- doc/profile.txt | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 doc/profile.txt diff --git a/doc/profile.txt b/doc/profile.txt new file mode 100644 index 00000000..b911d0ae --- /dev/null +++ b/doc/profile.txt @@ -0,0 +1,42 @@ +Notes on rsync profiling + +strlcpy is hot: + + 0.00 0.00 1/7735635 push_dir [68] + 0.00 0.00 1/7735635 pop_dir [71] + 0.00 0.00 1/7735635 send_file_list [15] + 0.01 0.00 18857/7735635 send_files [4] + 0.04 0.00 129260/7735635 send_file_entry [18] + 0.04 0.00 129260/7735635 make_file [20] + 0.04 0.00 141666/7735635 send_directory [36] + 2.29 0.00 7316589/7735635 f_name [13] +[14] 11.7 2.42 0.00 7735635 strlcpy [14] + + +Here's the top few functions: + + 46.23 9.57 9.57 13160929 0.00 0.00 mdfour64 + 14.78 12.63 3.06 13160929 0.00 0.00 copy64 + 11.69 15.05 2.42 7735635 0.00 0.00 strlcpy + 10.05 17.13 2.08 41438 0.05 0.38 sum_update + 4.11 17.98 0.85 13159996 0.00 0.00 mdfour_update + 1.50 18.29 0.31 file_compare + 1.45 18.59 0.30 129261 0.00 0.01 send_file_entry + 1.23 18.84 0.26 2557585 0.00 0.00 f_name + 1.11 19.07 0.23 1483750 0.00 0.00 u_strcmp + 1.11 19.30 0.23 118129 0.00 0.00 writefd_unbuffered + 0.92 19.50 0.19 1085011 0.00 0.00 writefd + 0.43 19.59 0.09 156987 0.00 0.00 read_timeout + 0.43 19.68 0.09 129261 0.00 0.00 clean_fname + 0.39 19.75 0.08 32887 0.00 0.38 matched + 0.34 19.82 0.07 1 70.00 16293.92 send_files + 0.29 19.89 0.06 129260 0.00 0.00 make_file + 0.29 19.95 0.06 75430 0.00 0.00 read_unbuffered + + + +mdfour could perhaps be made faster: + +/* NOTE: This code makes no attempt to be fast! */ + +There might be an optimized version somewhere that we can borrow. -- 2.34.1