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Optimization #2302

closed

rule parsing: faster parsing by not using pcre

Added by Jason Ish almost 7 years ago. Updated almost 7 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Jason Ish
Target version:
4.1beta1
Effort:
Difficulty:
Label:

Description

Regular expressions are generally not the best idea for parsers. But moving away from regexp's to tokenizing the strings we should be able to provide more context around a parse error in the rule, as well as speed up rule parsing. Initial tests showed a 2x speed up on modern Intel CPUs, and 5x or more on older Intel CPUs.

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