Yes, I'm seeing clang++ slightly faster too, but only for the limited length fixed string case.

Same here.

I also fiddled with some of the many compiler parameters but felt overwhelmed by the sheer number and complexity of them, so just stuck to the basic ones for now.

I tried various parameters not realizing no improvements. The following performs similarly, without the extra CFLAGS.

$ clang++ -o llil2vec -std=c++11 -Wall -O3 llil2vec.cpp

$ ./llil2vec big1.txt big2.txt big3.txt >out.txt
llil2vec (fixed string length=6) start
get_properties      CPU time : 1.65488 secs
emplace set sort    CPU time : 0.470765 secs
write stdout        CPU time : 0.850356 secs
total               CPU time : 2.97605 secs
total        wall clock time : 3 secs

[download]

In reply to Re^5: Rosetta Code: Long List is Long (faster - vec) by marioroy
in thread Rosetta Code: Long List is Long by eyepopslikeamosquito

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.