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https://bro-tracker.atlassian.net/browse/BIT-1215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17106#comment-17106
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Adam Slagell commented on BIT-1215:
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We are going to make it configurable and default to like a 1000KB line.
Otherwise, you add a check to see if you need to reallocate memory for every
line processed, which seems inefficient for edge cases. Letting the user
override the default is a good compromise though.
> bro-cut should be rewritten in C for speed and to not depend on gawk
> --------------------------------------------------------------------
>
> Key: BIT-1215
> URL: https://bro-tracker.atlassian.net/browse/BIT-1215
> Project: Bro Issue Tracker
> Issue Type: Improvement
> Components: Bro, bro-aux
> Reporter: Daniel Thayer
> Fix For: 2.4
>
>
> The current implementation of bro-cut is too slow when processing large log
> files (takes more than a minute to process a single log file a few hundred MB
> in size). Justin Azoff rewrote bro-cut in C and found that it runs an order
> of magnitude faster. Another benefit of a C version of bro-cut is that we
> will no longer depend on gawk for anything (and some of Bro's supported
> platforms do not include gawk by default).
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