我们可以让 DwinHs Inno Setup 下载插件运行得更快吗？

Question

DwinHs 有一个 DwinsHs_Data_Buffer_Length 宏。我已将其设置为8192的值，但下载速度仍然相当慢。

例如，我有一个 200 MBit 的连接，文件是 25 MB。下载需要两分半钟

我已经阅读了这里的一些答案：

What is the best memory buffer size to allocate to download a file from Internet?

它建议改用 16K 缓冲区。无论哪种方式，在给定用户系统的情况下，我们是否可以使用 Pascal 的最大缓冲区长度？

浏览器下载速度更快，为什么我们不能在 Inno Setup 中使用？

例子

[ISPP]
#define HelpDocSetupURL "https://www.publictalksoftware.co.uk/downloads/PublicTalksHelpDocumentationSetup.exe"

[Setup]
AppID = TestID
AppName = Test App
OutputBaseFilename = My_Test_App_Setup
AppVersion = 1.0
DefaultDirName = {pf}\MyTestApp
DefaultGroupName = My Test App

[Tasks]
Name: "downloadhelp"; Description: "Task Desc"; GroupDescription: "Group Desc";

[Files]

Source: "{tmp}\HelpDocSetup.exe"; \
    DestDir: "{app}"; \
    Flags: external deleteafterinstall; \
    Tasks: downloadhelp; \
    Check: DwinsHs_Check( ExpandConstant('{tmp}\HelpDocSetup.exe'), '{#HelpDocSetupURL}', 'My_Setup', 'Get', 0, 0 )

[Code]
program Setup;

#define DwinsHs_Use_Predefined_Downloading_WizardPage
#define DwinsHs_Data_Buffer_Length 8192
#include "dwinshs.iss"

procedure InitializeWizard();
begin
  DwinsHs_InitializeWizard(wpPreparing);
end;

procedure CurPageChanged(CurPageID: Integer);
begin
  DwinsHs_CurPageChanged(CurPageID, nil, nil);
end;

function ShouldSkipPage(CurPageId: Integer): Boolean;
begin
  Result := False;
  DwinsHs_ShouldSkipPage(CurPageId, Result);
end;

function BackButtonClick(CurPageID: Integer): Boolean;
begin
  Result := True;
  DwinsHs_BackButtonClick(CurPageID);
end;

function NextButtonClick(CurPageID: Integer): Boolean;
begin
  Result := True;
  DwinsHs_NextButtonClick(CurPageID, Result);
end;

procedure CancelButtonClick(CurPageID: Integer; var Cancel, Confirm: Boolean);
begin
  DwinsHs_CancelButtonClick(CurPageID, Cancel, Confirm);
end;

Answer 1

软件作者就此问题回复我并提出：

You can try to set the cache size to 16384, 32768 or 655536.

所以我设置为：

#define DwinsHs_Data_Buffer_Length 655536

结果 好多了:

如您所见，只有 10 秒。

我不知道这样的缓存值对那些拥有较慢互联网的人有什么影响连接.

我们可以让 DwinHs Inno Setup 下载插件运行得更快吗？

Can we make the DwinHs Inno Setup download plugin work faster?

inno-setup

dwinshs

例子