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Date: Sat, 28 Jan 2012 02:14:56 +0400
From: Solar Designer <>
Subject: Re: unique using more than 2 GB RAM

On Fri, Jan 27, 2012 at 03:30:07PM -0600, jfoug wrote:
> Unique in Jtr will almost always be slower than sort | uniq  type of work.
> It is much harder to search/unique on very large worksets, than sort and a
> brain dead search (simple compare)

No, I think it's the other way around.  The "sort" step is not cheap.

In my experience so far, JtR's "unique" is usually faster than "sort -u".

What I mentioned was the first major exception I encountered - and it is
for very different memory settings (2 GB vs. 14 GB).


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