From: Jarkko Hietaniemi Date: Thu, 30 Jan 1997 19:58:10 +0000 (+0200) Subject: hints/dec_osf.sh: polishing the comments X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=f2c6908735e0c2f2afe8eb6d87788a1d29d32bfb;p=p5sagit%2Fp5-mst-13.2.git hints/dec_osf.sh: polishing the comments private-msgid: <199701301958.VAA08992@alpha.hut.fi> --- diff --git a/hints/dec_osf.sh b/hints/dec_osf.sh index efe2c8a..f0b380b 100644 --- a/hints/dec_osf.sh +++ b/hints/dec_osf.sh @@ -22,8 +22,17 @@ # executable code simply do not agree any more while in # mid-execution, the optimiser only cares about the results. # -# Note: Configure will automatically -# add the often quoted -DDEBUGGING for you) +# Note 3: Configure will automatically add the often quoted +# -DDEBUGGING for you if the -g is specified. +# +# Note 4: There is even more optimisation available in the new +# (GEM) DEC cc: -O5 and -fast. "man cc" will tell more about them. +# The jury is still out whether either or neither help for Perl +# and how much. Based on very quick testing, -fast boosts +# raw data copy by about 5-15% (-fast brings in, among other +# things, inlined, ahem, fast memcpy()), while on the other +# hand searching things (index, m//, s///), seems to get slower. +# Your mileage will vary. # case "$optimize" in @@ -84,6 +93,15 @@ esac # # History: # +# perl5.003_24: +# +# 30-Jan-1997 Jarkko Hietaniemi +# +# * Fixing the note on -DDEBUGGING. +# +# * Note on -O5 -fast. +# +# # perl5.003_23: # # 26-Jan-1997 Jarkko Hietaniemi