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.
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