github/qBittorrent
1
0
Fork 0
mirror of https://github.com/qbittorrent/qBittorrent synced 2025-07-30 19:40:18 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

Add option to control qBittorrent process memory priority

Browse source 
This is to avoid Windows swapping out other application data from
OS cache and put in torrent data which hinders other program
responsiveness.

The default value "Below normal" is choosen because casual users have
other higher priority apps (such as browser) running and they don't
expect OS to swap out its data. Dedicated seeders most probably will not
have other app running on their system and would expect qbt has
priority over other background services.

The option only has effect on Windows >= 8.
This commit is contained in:
Chocobo1 2019-09-28 14:21:53 +08:00
parent c1e0207454
commit 0f60121b94
No known key found for this signature in database
GPG key ID: 210D9C873253A68C
4 changed files with 137 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

61
src/base/bittorrent/session.cpp
View file

@ -35,6 +35,7 @@
#include <utility>
#ifdef Q_OS_WIN
#include <Windows.h>
#include <wincrypt.h>
#include <iphlpapi.h>
#endif
@ -344,6 +345,9 @@ Session::Session(QObject *parent)
return tmp;
}
)
#if defined(Q_OS_WIN)
, m_OSMemoryPriority(BITTORRENT_KEY("OSMemoryPriority"), OSMemoryPriority::BelowNormal)
#endif
, m_resumeFolderLock {new QFile {this}}
, m_refreshTimer {new QTimer {this}}
, m_seedingLimitTimer {new QTimer {this}}
@ -930,6 +934,10 @@ void Session::configureComponents()
disableIPFilter();
m_IPFilteringConfigured = true;
}
#if defined(Q_OS_WIN)
applyOSMemoryPriority();
#endif
}
void Session::initializeNativeSession()
@ -2753,6 +2761,59 @@ QStringList Session::bannedIPs() const
return m_bannedIPs;
}
#if defined(Q_OS_WIN)
OSMemoryPriority Session::getOSMemoryPriority() const
{
return m_OSMemoryPriority;
}
void Session::setOSMemoryPriority(const OSMemoryPriority priority)
{
if (m_OSMemoryPriority == priority)
return;
m_OSMemoryPriority = priority;
configureDeferred();
}
void Session::applyOSMemoryPriority() const
{
using SETPROCESSINFORMATION = BOOL (WINAPI *)(HANDLE, PROCESS_INFORMATION_CLASS, LPVOID, DWORD);
const auto setProcessInformation = Utils::Misc::loadWinAPI<SETPROCESSINFORMATION>("Kernel32.dll", "SetProcessInformation");
if (!setProcessInformation) // only available on Windows >= 8
return;
#if (_WIN32_WINNT < _WIN32_WINNT_WIN8)
// this dummy struct is required to compile successfully when targeting older Windows version
struct MEMORY_PRIORITY_INFORMATION
{
ULONG MemoryPriority;
};
#endif
MEMORY_PRIORITY_INFORMATION prioInfo {};
switch (getOSMemoryPriority()) {
case OSMemoryPriority::Normal:
default:
prioInfo.MemoryPriority = MEMORY_PRIORITY_NORMAL;
break;
case OSMemoryPriority::BelowNormal:
prioInfo.MemoryPriority = MEMORY_PRIORITY_BELOW_NORMAL;
break;
case OSMemoryPriority::Medium:
prioInfo.MemoryPriority = MEMORY_PRIORITY_MEDIUM;
break;
case OSMemoryPriority::Low:
prioInfo.MemoryPriority = MEMORY_PRIORITY_LOW;
break;
case OSMemoryPriority::VeryLow:
prioInfo.MemoryPriority = MEMORY_PRIORITY_VERY_LOW;
break;
}
setProcessInformation(::GetCurrentProcess(), ProcessMemoryPriority, &prioInfo, sizeof(prioInfo));
}
#endif
int Session::maxConnectionsPerTorrent() const
{
return m_maxConnectionsPerTorrent;