Class CacheStats

Src/Base/AMReX_FabArrayBase.H:157–190

    /// \cond DOXYGEN_IGNORE
    struct CacheStats
    {
        int         size{0};     //!< current size: nbuild - nerase
        int         maxsize{0};  //!< highest water mark of size
        Long        maxuse{0};   //!< max # of uses of a cached item
        Long        nuse{0};     //!< # of uses of the whole cache
        Long        nbuild{0};   //!< # of build operations
        Long        nerase{0};   //!< # of erase operations
        Long        bytes{0};
        Long        bytes_hwm{0};
        std::string name;     //!< name of the cache
        explicit CacheStats (std::string  name_)
            : name(std::move(name_)) {}
        void recordBuild () noexcept {
            ++size;
            ++nbuild;
            maxsize = std::max(maxsize, size);
        }
        void recordErase (Long n) noexcept {
            // n: how many times the item to be deleted has been used.
            --size;
            ++nerase;
            maxuse = std::max(maxuse, n);
        }
        void recordUse () noexcept { ++nuse; }
        void print () const {
            amrex::Print(Print::AllProcs) << "### " << name << " ###\n"
                                          << "    tot # of builds  : " << nbuild  << "\n"
                                          << "    tot # of erasures: " << nerase  << "\n"
                                          << "    tot # of uses    : " << nuse    << "\n"
                                          << "    max cache size   : " << maxsize << "\n"
                                          << "    max # of uses    : " << maxuse  << "\n";
        }
    };
    /// \endcond
    //! Used by a bunch of routines when communicating via MPI.
    struct CopyComTag