On 08/30/2014 06:54 PM, Felix Fietkau wrote: > On 2014-08-30 18:45, Matthias Schiffer wrote: >> On 08/30/2014 06:42 PM, Matthias Schiffer wrote: >>> Hi, >>> I've noticed that the code produced by Barrier Breaker's toolchain >>> sometimes has significantly worse performance that that built by >>> Attitude Adjustment. >>> >>> I can see this extremely with the VPN tool "fastd" developed and >>> maintained by me: On the same Barrier Breaker system, a binary built by >>> the default Barrier Breaker toolchain (GCC 4.8-linaro) gets about 35% >>> less throughput than one built with Attitude Adjustment (GCC >>> 4.6-linaro). With the 4.6-linaro toolchain of Barrier Breaker, I still >>> get 20% worse performance than with the 4.6-linaro of Attitude Adjustment. >>> >>> Do you have any suggestions what I can do to solve or analyze the issue? >>> Any compiler flags I should try fiddling with? Optimizing with -Os vs. >>> -O3 doesn't seem to make a difference. >>> >>> Thanks, >>> Matthias >>> >> >> I forgot to tell that this is on ar71xx. > Did you try disabling mips16 support for fastd? > > PKG_USE_MIPS16:=0 > > - Felix >
That actually did the trick when applying it to the package nacl which contains some of the crypto algorithms used by fastd :) I'll update nacl with the option added. Thanks, Matthias
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