Hypermail - PushByte function is slow!!!

From: Frank Naude <naudefj_at_telkomsa.net_at_hypermail-project.org>
Date: Mon, 22 Mar 2004 14:27:04 -0500
Message-Id: <1079983624.1769.63.camel_at_localhost>

Hi,

I've recompiled hypermail with profiling (added -pg to CFLAGS) to identify slow functions. It looks like the PushByte() function is the most expensive function in the entire program. What is this function's purpose, and what can be done to speed it up?

Output from "gprof hypermail":

Each sample counts as 0.01 seconds.
  % cumulative self self total  time seconds seconds calls ms/call ms/call name

 27.20      7.71     7.71 842952460     0.00     0.00  PushByte
 16.44     12.37     4.66  4033647     0.00     0.00  convcharsreal
 10.83     15.44     3.07  4027419     0.00     0.00  unconvchars
 10.69     18.47     3.03 136776370     0.00     0.00  PushString
  6.81     20.40     1.93 140802033     0.00     0.00  PushNString
  6.35     22.20     1.80  8060250     0.00     0.00  strsav
  4.90     23.59     1.39  4025649     0.00     0.00  ConvURLs
  2.82     24.39     0.80        3   266.67   356.67
compute_quoted_percent
  2.05     24.97     0.58        3   193.33  6022.21  printbody
  1.73     25.46     0.49  8099964     0.00     0.00  TrioParse
  1.48     25.88     0.42  8051299     0.00     0.00  is_sig_start
  1.23     26.23     0.35  7795337     0.00     0.00 
remove_hypermail_tags
  1.13     26.55     0.32  8099964     0.00     0.00  TrioFormatProcess
  0.95     26.82     0.27 29592153     0.00     0.00  TrioOutStreamFile
  0.85     27.06     0.24  8099964     0.00     0.00  TrioFormat
  0.85     27.30     0.24        1   240.00 10213.75  parse_old_html
  0.60     27.47     0.17  4026565     0.00     0.00  addbody
  0.53     27.62     0.15  4025649     0.00     0.00  parseemail
  0.42     27.74     0.12 12076948     0.00     0.00  isquote
  0.39     27.85     0.11 12098182     0.00     0.00  emalloc
  0.39     27.96     0.11  4033641     0.00     0.00  convchars
  0.35     28.06     0.10  4025649     0.00     0.00  ConvURLsString
  0.25     28.13     0.07  4025649     0.00     0.00  parseurl
  0.21     28.19     0.06 12076948     0.00     0.00  get_quote_prefix
  0.21     28.25     0.06  4019580     0.00     0.00 
print_leading_whitespace
  0.18     28.30     0.05  8070234     0.00     0.00  trio_fprintf
  0.04     28.31     0.01   185043     0.00     0.00 
TrioOutStreamStringMax
  0.04     28.32     0.01   106133     0.00     0.00  TrioWriteString
  0.04     28.33     0.01     2189     0.00     0.01  format_thread_info
  0.04     28.34     0.01       13     0.77     2.25  print_all_threads
  0.04     28.35     0.01                             __umoddi3
  0.00     28.35     0.00  1153068     0.00     0.00 

TrioWriteStringCharacter
...

Best regards.

Frank Received on Mon 22 Mar 2004 10:46:01 PM GMT