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A benchmacking tool for measuring matching throughput among various regex expression matching engines

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petabi/regexbench

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Overview

Regexbench is a benchmacking tool for measuring matching throughput among various regex expression matching engines. Currently it supports rematch, hyperscan, pcre2, pcre2jit and re2.

Usage

regexbench is a commandline application. It is designed to work with libpcap. The typical usage is:

./regexbench myre.re mypcap.pcap

  • myre.re - regular expression rule file, the rule format is in pcre format '/abc/'.

  • mypcap.pcap - pcap file of packets to match

After match, regexbench will stop and display statistics, it will also write the result to a json file (default output.json).

regexbench supports the following options:

  • -h help info.

  • -e engine to perform the matching. Currently it supports rematch, hyperscan, pcre2, pcre2jit, re2.

  • -r repeat pcap multiple times.

  • -c concatnate pcre2 rules. To turn on, one should specify -e pcre2 -c 1 or -e pcre2jit -c 1, default off.

  • -o output json file, default (output.json)

  • -s rematch session mode. To turn on, one should specify -e rematch -s 1, default off.

Output

  • TotalMatches
  • TotalMatchedPackets
  • UserTime
  • SystemTime
  • TotalTime
  • TotalBytes
  • TotalPackets
  • Mbps
  • Mpps
  • MaximumMemoryUsed(kB)