Package: mbw Version: 1.2.2-1+b1 Severity: normal Dear Maintainer,
i looked at strace and ltrace traces, and I belive memcpy used by mbw is generated by gcc and inlined. the libc one is not called. (not to mention the memcpy is slower than dumb version) As such, the memcpy performance of mbw is extremally dependent on exact compiler version and compilation flags (like -mcpu/-march/-mtune), optimization level, vectorization, etc. Would be nice if multiple versions are compiled into mbw and tested at runtime. -- System Information: Debian Release: buster/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.18.0-1-amd64 (SMP w/32 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages mbw depends on: ii libc6 2.27-6 mbw recommends no packages. mbw suggests no packages. -- no debconf information
