Hi All, 2017-02-09 11:34 GMT+01:00 Bálint Réczey <bal...@balintreczey.hu>: > Hi Guy, > > 2017-02-08 19:51 GMT+01:00 Guy Harris <g...@alum.mit.edu>: >> On Feb 8, 2017, at 5:40 AM, Peter Wu <pe...@lekensteyn.nl> wrote: >> >>> I did not expect Libgcrypt to consume entropy when it is just doing >>> decryption. >> >> I'm concerned with consuming CPU and wall-clock time - i.e., slowing *shark >> startup - not entropy. > > perf would show that. > > rbalint@chaos:~/Downloads$ cat exit.lua > os.exit(1) > rbalint@chaos:~/Downloads$ wireshark -X lua_script:exit.lua > rbalint@chaos:~/Downloads$ perf record -g -- wireshark -X lua_script:exit.lua > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.249 MB perf.data (~10883 samples) ] > rbalint@chaos:~/Downloads$ perf report --sort comm,dso > + 58.47% 0.00% wireshark [unknown] > + 34.86% 15.55% wireshark libQt5Gui.so.5.3.2 > + 21.56% 20.78% wireshark libQt5Widgets.so.5.3.2 > + 11.88% 8.99% wireshark libc-2.19.so > + 9.50% 9.42% wireshark libglib-2.0.so.0.4800.0 > + 8.90% 7.35% wireshark libwireshark.so.8.1.2 > + 8.75% 8.75% wireshark [kernel.kallsyms] > + 8.06% 7.51% wireshark libQt5Core.so.5.3.2 > + 7.12% 3.97% wireshark ld-2.19.so > + 5.45% 5.45% wireshark libfontconfig.so.1.8.0 > + 5.33% 5.33% wireshark libz.so.1.2.8 > + 1.75% 1.75% wireshark libpng12.so.0.50.0 > + 1.29% 1.29% QThread [kernel.kallsyms] > + 1.15% 1.13% wireshark i965_dri.so > + 0.82% 0.13% wireshark wireshark > + 0.50% 0.50% wireshark libfreetype.so.6.11.1 > + 0.46% 0.15% wireshark libX11.so.6.3.0 > + 0.40% 0.40% wireshark libharfbuzz.so.0.935.0 > + 0.30% 0.30% wireshark libexpat.so.1.6.0 > + 0.28% 0.00% wireshark libnl-genl-3.so.200.19.0 > + 0.28% 0.16% wireshark libqxcb.so > + 0.20% 0.20% wireshark libnettle.so.4.7 > + 0.16% 0.00% QXcbEventReader [unknown] > + 0.16% 0.16% QXcbEventReader [kernel.kallsyms] > + 0.16% 0.03% QXcbEventReader libpthread-2.19.so > + 0.16% 0.16% wireshark liblua5.2.so.0.0.0 > + 0.15% 0.00% wireshark libdl-2.19.so > + 0.15% 0.08% wireshark libpthread-2.19.so > > I don't see anything related to that.
Seeing the Qt libs made me curious and ran another test on Debian Jessie with packaged 2.2.2 : rbalint@chaos:~/Downloads$ time wireshark-gtk -X lua_script:exit.lua real 0m0.304s user 0m0.244s sys 0m0.044s rbalint@chaos:~/Downloads$ time wireshark -X lua_script:exit.lua real 0m0.906s user 0m0.556s sys 0m0.128s Cheers, Balint ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev@wireshark.org> Archives: https://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-requ...@wireshark.org?subject=unsubscribe
