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A JIT for packet filtersA JIT for packet filtersPosted Apr 14, 2011 16:37 UTC (Thu) by trasz (guest, #45786)In reply to: A JIT for packet filters by wahern Parent article: A JIT for packet filters
See http://fxr.watson.org/fxr/source/net/bpf_jitter.c and http://fxr.watson.org/fxr/source/amd64/amd64/bpf_jit_mach....
It was introduced six years ago, with this commit:
r153151 | jkim | 2005-12-06 03:58:12 +0100 (Tue, 06 Dec 2005) | 17 lines
Add experimental BPF Just-In-Time compiler for amd64 and i386.
Use the following kernel configuration option to enable:
options BPF_JITTER
If you want to use bpf_filter() instead (e. g., debugging), do:
sysctl net.bpf.jitter.enable=0
to turn it off.
Currently BIOCSETWF and bpf_mtap2() are unsupported, and bpf_mtap() is
Obtained from: WinPcap 3.1 (for i386)
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