Wireshark-commits: [Wireshark-commits] master a837570: Combine SSE and pre-compiled patterns for fa
URL: https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=a837570d02dca2ad94ff5046b13592d84a12a345
Submitter: Anders Broman (a.broman58@xxxxxxxxx)
Changed: branch: master
Repository: wireshark
Commits:
a837570 by Hadriel Kaplan (hadrielk@xxxxxxxxx):
Combine SSE and pre-compiled patterns for faster pbrk
This combines the SSE4.2 instructions usage, with pre-compiled
pattern searching usage, for a faster pbrk search method.
Testing against large files of HTTP and SIP, there is about
a 5% performance improvement by using pre-"compiled" patterns
for guint8_pbrk() instead of passing it the search string and
having it build the match array every time.
Similar to regular expressions, "compiling" the pattern match array
in advance only once and using the "compiled" patterns for
the searches is faster than compiling it every time.
Change-Id: Ifcbc14a6c93f32d15663a10d974bacdca5119a8e
Ping-Bug: 10798
Reviewed-on: https://code.wireshark.org/review/6990
Petri-Dish: Hadriel Kaplan <hadrielk@xxxxxxxxx>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@xxxxxxxxxxxxx>
Reviewed-by: Anders Broman <a.broman58@xxxxxxxxx>
Actions performed:
from a618f1c USB: put back interface class when dissecting URB_CONTROL
adds a837570 Combine SSE and pre-compiled patterns for faster pbrk
Summary of changes:
debian/libwireshark0.symbols | 3 +-
debian/libwsutil0.symbols | 3 +-
epan/dissectors/packet-cups.c | 8 ++-
epan/dissectors/packet-irc.c | 41 ++++++-------
epan/dissectors/packet-megaco.c | 13 ++++-
epan/dissectors/packet-sdp.c | 12 +++-
epan/dissectors/packet-sip.c | 49 +++++++++++-----
epan/tvbuff-int.h | 2 +-
epan/tvbuff.c | 56 +++++++++---------
epan/tvbuff.h | 11 +++-
epan/tvbuff_subset.c | 4 +-
frame_tvbuff.c | 4 +-
wsutil/ws_mempbrk.c | 60 ++++++++++---------
wsutil/ws_mempbrk.h | 27 +++++++--
wsutil/ws_mempbrk_sse42.c | 123 +++++++++++++--------------------------
15 files changed, 222 insertions(+), 194 deletions(-)
