[OpenWrt-Devel] Toolchain issue: Significant decrease in performance of binaries produced by Barrier Breaker relative to Attitude Adjustment

Nikos Mavrogiannopoulos nmav at gnutls.org
Sat Aug 30 15:27:54 EDT 2014

On Sat, 2014-08-30 at 20:10 +0200, Felix Fietkau wrote:

> > This could be a problem caused by mips16. We use that in BB to create
> > smaller binaries. but Jonas saw a performance problem in some
> > applications, mostly stuff doing crypto (big integer calculations).
> > Can you try to build the BB toolchain without the mips16 feature in
> > target/linux/ar71xx/Makefile and try your application again.
> There's no need to disable it for the target, since it can be disabled
> for individual packages.

So should all packages that contain performance critical code have that
flag? 35% performance penalty is too high for such systems.

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