5.23

1 files changed, 0 insertions, 262 deletions

diff --git a/lib/perf_check.cpp b/lib/perf_check.cpp
deleted file mode 100644
index bf232add..00000000
--- a/lib/perf_check.cpp
+++ /dev/null
@@ -1,262 +0,0 @@
-// **************************************************************************
-// * This file is part of the FreeFileSync project. It is distributed under *
-// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
-// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved        *
-// **************************************************************************
-
-#include "perf_check.h"
-
-#include <limits>
-//#include <wx/ffile.h>
-#include <zen/basic_math.h>
-#include <zen/i18n.h>
-#include <zen/format_unit.h>
-
-using namespace zen;
-
-
-PerfCheck::PerfCheck(unsigned int windowSizeRemainingTime,
-                     unsigned int windowSizeSpeed) :
-    windowSizeRemTime(windowSizeRemainingTime),
-    windowSizeSpeed_(windowSizeSpeed),
-    windowMax(std::max(windowSizeRemainingTime, windowSizeSpeed)) {}
-
-
-PerfCheck::~PerfCheck()
-{
-    /*
-    //write samples to a file
-    wxFFile outputFile(wxT("statistics.dat"), wxT("w"));
-
-    outputFile.Write(wxT("Time(ms);Objects;Data\n"));
-
-    for (auto it = samples.begin(); it != samples.end(); ++it)
-    {
-        outputFile.Write(numberTo<wxString>(it->first));
-        outputFile.Write(wxT(";"));
-        outputFile.Write(numberTo<wxString>(it->second.objCount_));
-        outputFile.Write(wxT(";"));
-    	outputFile.Write(numberTo<wxString>(it->second.data_));
-        outputFile.Write(wxT("\n"));
-    }
-    */
-}
-
-
-void PerfCheck::addSample(int itemsCurrent, double dataCurrent, long timeMs)
-{
-    samples.insert(samples.end(), std::make_pair(timeMs, Record(itemsCurrent, dataCurrent))); //use fact that time is monotonously ascending
-
-    //remove all records earlier than "now - windowMax"
-    const long newBegin = timeMs - windowMax;
-    auto it = samples.upper_bound(newBegin);
-    if (it != samples.begin())
-        samples.erase(samples.begin(), --it); //keep one point before newBegin in order to handle "measurement holes"
-}
-
-
-inline
-std::pair<const std::multimap<long, PerfCheck::Record>::value_type*, const std::multimap<long, PerfCheck::Record>::value_type*> PerfCheck::getBlockFromEnd(long windowSize) const
-{
-    if (!samples.empty())
-    {
-        auto itBack = samples.rbegin();
-        //find start of records "window"
-        auto itFront = samples.upper_bound(itBack->first - windowSize);
-        if (itFront != samples.begin())
-            --itFront; //one point before window begin in order to handle "measurement holes"
-        return std::make_pair(&*itFront, &*itBack);
-    }
-    return std::make_pair(nullptr, nullptr);
-}
-
-
-zen::Opt<std::wstring> PerfCheck::getRemainingTime(double dataRemaining) const
-{
-    auto blk = getBlockFromEnd(windowSizeRemTime);
-    if (blk.first && blk.second)
-    {
-        const auto& itemFront = *blk.first;
-        const auto& itemBack  = *blk.second;
-        //-----------------------------------------------------------------------------------------------
-        const long   timeDelta = itemBack.first        - itemFront.first;
-        const double dataDelta = itemBack.second.data_ - itemFront.second.data_;
-
-        //objects model logical operations *NOT* disk accesses, so we better play safe and use "bytes" only!
-        //http://sourceforge.net/p/freefilesync/feature-requests/197/
-
-        if (!numeric::isNull(dataDelta)) //sign(dataRemaining) != sign(dataDelta) usually an error, so show it!
-            return remainingTimeToString(dataRemaining * timeDelta / (1000.0 * dataDelta));
-    }
-    return NoValue();
-}
-
-
-zen::Opt<std::wstring> PerfCheck::getBytesPerSecond() const
-{
-    auto blk = getBlockFromEnd(windowSizeSpeed_);
-    if (blk.first && blk.second)
-    {
-        const auto& itemFront = *blk.first;
-        const auto& itemBack  = *blk.second;
-        //-----------------------------------------------------------------------------------------------
-        const long   timeDelta = itemBack.first        - itemFront.first;
-        const double dataDelta = itemBack.second.data_ - itemFront.second.data_;
-
-        if (timeDelta != 0/* && dataDelta > 0*/)
-            return filesizeToShortString(zen::Int64(dataDelta * 1000.0 / timeDelta)) + _("/sec");
-    }
-    return NoValue();
-}
-
-
-zen::Opt<std::wstring> PerfCheck::getItemsPerSecond() const
-{
-    auto blk = getBlockFromEnd(windowSizeSpeed_);
-    if (blk.first && blk.second)
-    {
-        const auto& itemFront = *blk.first;
-        const auto& itemBack  = *blk.second;
-        //-----------------------------------------------------------------------------------------------
-        const long timeDelta  = itemBack.first             - itemFront.first;
-        const int  itemsDelta = itemBack.second.itemCount_ - itemFront.second.itemCount_;
-
-        if (timeDelta != 0)
-            return replaceCpy(_("%x items/sec"), L"%x", formatThreeDigitPrecision(itemsDelta * 1000.0 / timeDelta));
-    }
-    return NoValue();
-}
-
-
-/*
-class for calculation of remaining time:
-----------------------------------------
-"filesize |-> time" is an affine linear function f(x) = z_1 + z_2 x
-
-For given n measurements, sizes x_0, ..., x_n and times f_0, ..., f_n, the function f (as a polynom of degree 1) can be lineary approximated by
-
-z_1 = (r - s * q / p) / ((n + 1) - s * s / p)
-z_2 = (q - s * z_1) / p = (r - (n + 1) z_1) / s
-
-with
-p := x_0^2 + ... + x_n^2
-q := f_0 x_0 + ... + f_n x_n
-r := f_0 + ... + f_n
-s := x_0 + ... + x_n
-
-=> the time to process N files with amount of data D is:    N * z_1 + D * z_2
-
-Problem:
---------
-Times f_0, ..., f_n can be very small so that precision of the PC clock is poor.
-=> Times have to be accumulated to enhance precision:
-Copying of m files with sizes x_i and times f_i (i = 1, ..., m) takes sum_i f(x_i) := m * z_1 + z_2 * sum x_i = sum f_i
-With X defined as the accumulated sizes and F the accumulated times this gives: (in theory...)
-m * z_1 + z_2 * X = F   <=>
-z_1 + z_2 * X / m = F / m
-
-=> we obtain a new (artificial) measurement with size X / m and time F / m to be used in the linear approximation above
-
-
-Statistics::Statistics(int totalObjectCount, double totalDataAmount, unsigned recordCount) :
-        objectsTotal(totalObjectCount),
-        dataTotal(totalDataAmount),
-        recordsMax(recordCount),
-        objectsLast(0),
-        dataLast(0),
-        timeLast(wxGetLocalTimeMillis()),
-        z1_current(0),
-        z2_current(0),
-        dummyRecordPresent(false) {}
-
-
-wxString Statistics::getRemainingTime(int objectsCurrent, double dataCurrent)
-{
-    //add new measurement point
-    const int m = objectsCurrent - objectsLast;
-    if (m != 0)
-    {
-        objectsLast = objectsCurrent;
-
-        const double X = dataCurrent - dataLast;
-        dataLast = dataCurrent;
-
-        const zen::Int64 timeCurrent = wxGetLocalTimeMillis();
-        const double F = (timeCurrent - timeLast).ToDouble();
-        timeLast = timeCurrent;
-
-        record newEntry;
-        newEntry.x_i = X / m;
-        newEntry.f_i = F / m;
-
-        //remove dummy record
-        if (dummyRecordPresent)
-        {
-            measurements.pop_back();
-            dummyRecordPresent = false;
-        }
-
-        //insert new record
-        measurements.push_back(newEntry);
-        if (measurements.size() > recordsMax)
-            measurements.pop_front();
-    }
-    else //dataCurrent increased without processing new objects:
-    {    //modify last measurement until m != 0
-        const double X = dataCurrent - dataLast; //do not set dataLast, timeLast variables here, but write dummy record instead
-        if (!isNull(X))
-        {
-            const zen::Int64 timeCurrent = wxGetLocalTimeMillis();
-            const double F = (timeCurrent - timeLast).ToDouble();
-
-            record modifyEntry;
-            modifyEntry.x_i = X;
-            modifyEntry.f_i = F;
-
-            //insert dummy record
-            if (!dummyRecordPresent)
-            {
-                measurements.push_back(modifyEntry);
-                if (measurements.size() > recordsMax)
-                    measurements.pop_front();
-                dummyRecordPresent = true;
-            }
-            else //modify dummy record
-                measurements.back() = modifyEntry;
-        }
-    }
-
-    //calculate remaining time based on stored measurement points
-    double p = 0;
-    double q = 0;
-    double r = 0;
-    double s = 0;
-    for (const record& rec : measurements)
-    {
-        const double x_i = rec.x_i;
-        const double f_i = rec.f_i;
-        p += x_i * x_i;
-        q += f_i * x_i;
-        r += f_i;
-        s += x_i;
-    }
-
-    if (!isNull(p))
-    {
-        const double n   = measurements.size();
-        const double tmp = (n - s * s / p);
-
-        if (!isNull(tmp) && !isNull(s))
-        {
-            const double z1 = (r - s * q / p) / tmp;
-            const double z2 = (r - n * z1) / s;    //not (n + 1) here, since n already is the number of measurements
-
-            //refresh current values for z1, z2
-            z1_current = z1;
-            z2_current = z2;
-        }
-    }
-
-    return formatRemainingTime((objectsTotal - objectsCurrent) * z1_current + (dataTotal - dataCurrent) * z2_current);
-}
-*/