comment on

Note: Chuma states, "If it matters – the original lists are sorted, they don't all contain the same words, all numbers are positive integers." For clarity, the lists are sorted by (value descending, word).

Links to file generators and llil4 variants:

gen-llil.pl, gen-long-llil.pl, shuffle.pl
llil4map, llil4map2, llil4hmap, llil4emh, llil4umap
llil4vec, llil4vec-tbb
llil4judy

April 2024 updates:

llil4map2 is a memory efficient version, using a vector of pointers, to the phmap key-value pairs. This results in sorting taking longer, possibly due to CPU cache misses. However, memory consumption is significantly less.

200mil unique keys   llil4map   llil4map2
------------------   --------   --------
fixed-length=12      ~ 8.0 GB     6.0 GB
long-strings          17.8 GB    12.3 GB
[download]

See also, a more memory efficient version, by Gregory Popovitch, author of the C++ parallel-hashmap library.

In reply to Re^2: Rosetta Code: Long List is Long - JudySL summary by marioroy
in thread Rosetta Code: Long List is Long by eyepopslikeamosquito

Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
Want more info? How to link or How to display code and escape characters are good places to start.


Come for the quick hacks, stay for the epiphanies.
	PerlMonks