performance

[mgood7123]

when using uint128_t i am getting constant underruns when using divide while uint64_t has no underruns
| | | |--99.24%-- AudioTime::update(unsigned long, SoundRecordingAudioData*)
| | | | |--2.14%-- [hit in function]
| | | | |
| | | | |--84.84%-- uint128_t::operator/(uint128_t const&) const
| | | | | |
| | | | | |--98.44%-- uint128_t::divmod(uint128_t const&, uint128_t const&) const
| | | | | | |--4.89%-- [hit in function]
| | | | | | |
| | | | | | |--39.88%-- uint128_t::operator<<=(uint128_t const&)
| | | | | | | |--16.91%-- [hit in function]
| | | | | | | |
| | | | | | | |--49.84%-- uint128_t::operator<<(uint128_t const&) const
| | | | | | | | |--80.93%-- [hit in function]
| | | | | | | | |
| | | | | | | | |--17.95%-- uint128_t::uint128_t<unsigned long, unsigned long, void>(unsigned long const&, unsigned long const&)
| | | | | | | | |
| | | | | | | | --1.12%-- @plt
| | | | | | | |
| | | | | | | |--30.34%-- uint128_t::operator=(uint128_t&&)
| | | | | | | | |--76.11%-- [hit in function]
| | | | | | | | |
| | | | | | | | |--13.07%-- libAudioEngine.so[+237f4]
| | | | | | | | |
| | | | | | | | |--5.46%-- libAudioEngine.so[+237f8]
| | | | | | | | |
| | | | | | | | |--3.65%-- libAudioEngine.so[+23800]
| | | | | | | | |
| | | | | | | | --1.72%-- libAudioEngine.so[+237f0]
| | | | | | | |
| | | | | | | --2.91%-- @plt
| | | | | | |
| | | | | | |--15.85%-- uint128_t uint128_t::operator>><unsigned int, unsigned int>(unsigned int const&) const
| | | | | | | |--17.90%-- [hit in function]
| | | | | | | |
| | | | | | | |--70.96%-- uint128_t::operator>>(uint128_t const&) const
| | | | | | | | |--78.27%-- [hit in function]
| | | | | | | | |
| | | | | | | | --21.73%-- uint128_t::uint128_t<unsigned long, unsigned long, void>(unsigned long const&, unsigned long const&)
| | | | | | | |
| | | | | | | |--9.65%-- uint128_t::uint128_t<unsigned int, unsigned int>(unsigned int const&)
| | | | | | | |
| | | | | | | --1.49%-- @plt
| | | | | | |
| | | | | | |--13.97%-- uint128_t::operator>=(uint128_t const&) const
| | | | | | | |--25.04%-- [hit in function]
| | | | | | | |
| | | | | | | |--39.33%-- uint128_t::operator>(uint128_t const&) const
| | | | | | | |
| | | | | | | |--29.10%-- uint128_t::operator==(uint128_t const&) const
| | | | | | | |
| | | | | | | --6.52%-- @plt
| | | | | | |
| | | | | | |--7.61%-- uint128_t::operator-=(uint128_t const&)
| | | | | | | |--8.57%-- [hit in function]
| | | | | | | |
| | | | | | | |--53.32%-- uint128_t::operator-(uint128_t const&) const
| | | | | | | | |--76.59%-- [hit in function]
| | | | | | | | |
| | | | | | | | |--17.53%-- uint128_t::uint128_t<unsigned long, unsigned long, void>(unsigned long const&, unsigned long const&)
| | | | | | | | |
| | | | | | | | |--5.85%-- @plt
| | | | | | | | |
| | | | | | | | --0.03%-- [kernel.kallsyms][+ffffff8008125282]
| | | | | | | | [kernel.kallsyms][+ffffff8008ceb91a]
| | | | | | | | [kernel.kallsyms][+ffffff8008ceb662]
| | | | | | | | [kernel.kallsyms][+ffffff80084c7a6c]
| | | | | | | |
| | | | | | | |--35.07%-- uint128_t::operator=(uint128_t&&)
| | | | | | | | |--73.47%-- [hit in function]
| | | | | | | | |
| | | | | | | | |--9.13%-- libAudioEngine.so[+237f4]
| | | | | | | | |
| | | | | | | | |--8.70%-- libAudioEngine.so[+23800]
| | | | | | | | |
| | | | | | | | --8.70%-- libAudioEngine.so[+237f8]
| | | | | | | |
| | | | | | | --3.04%-- @plt
| | | | | | |
| | | | | | |--7.28%-- uint128_t uint128_t::operator&<int, int>(int const&) const
| | | | | | | |--62.94%-- [hit in function]
| | | | | | | |
| | | | | | | |--24.83%-- uint128_t::uint128_t<int, unsigned long, void>(int const&, unsigned long const&)
| | | | | | | |
| | | | | | | --12.23%-- @plt
| | | | | | |
| | | | | | |--3.87%-- uint128_t::operator++()
| | | | | | | |--12.13%-- [hit in function]
| | | | | | | |
| | | | | | | |--81.78%-- uint128_t::operator+=(uint128_t const&)
| | | | | | | |
| | | | | | | --6.09%-- @plt
| | | | | | |
| | | | | | |--2.06%-- @plt
| | | | | | |
| | | | | | |--1.90%-- uint128_t::operator bool() const
| | | | | | |
| | | | | | |--1.83%-- uint128_t::bits() const
| | | | | | |
| | | | | | |--0.44%-- uint128_t::operator<<(uint128_t const&) const
| | | | | | |
| | | | | | |--0.21%-- uint128_t::operator=(uint128_t&&)
| | | | | | |
| | | | | | --0.21%-- std::__ndk1::pair<uint128_t, uint128_t>::pair<true, false>(uint128_t const&, uint128_t const&)
| | | | | | uint128_t::uint128_t(uint128_t const&)
| | | | | |
| | | | | |--0.70%-- uint128_t::operator<<=(uint128_t const&)
| | | | | |
| | | | | |--0.44%-- uint128_t::operator++()
| | | | | |
| | | | | |--0.21%-- uint128_t::operator>=(uint128_t const&) const
| | | | | |
| | | | | --0.20%-- uint128_t uint128_t::operator>><unsigned int, unsigned int>(unsigned int const&) const
| | | | |

[calccrypto]

This looks like profiler output showing that division is slow. Where in this output does it say that underruns are occurring?