itsmattkc
0bc176fd62
By using one thread per logical CPU thread, we seemed to completely saturate the CPU which would kill the performance of the main/GUI thread (despite the other threads being low priority). We now use half of the logical threads, which still sees good CPU usage and minimal performance impact while allowing the main thread to respond to user actions.
57 lines
892 B
C++
57 lines
892 B
C++
#ifndef DISKMANAGER_H
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#define DISKMANAGER_H
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#include <QMutex>
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#include <QObject>
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class DiskManager : public QObject
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{
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Q_OBJECT
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public:
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static void CreateInstance();
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static void DestroyInstance();
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static DiskManager* instance();
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void Accessed(const QByteArray& hash);
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void Accessed(const QString& filename);
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void CreatedFile(const QString& file_name, const QByteArray& hash);
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bool ClearDiskCache();
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signals:
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void DeletedFrame(const QByteArray& hash);
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private:
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DiskManager();
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virtual ~DiskManager() override;
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static DiskManager* instance_;
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QByteArray DeleteLeastRecent();
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qint64 DiskLimit();
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static QString GetCacheIndexFilename();
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struct HashTime {
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QString file_name;
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QByteArray hash;
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qint64 access_time;
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qint64 file_size;
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};
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QList<HashTime> disk_data_;
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qint64 consumption_;
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QMutex lock_;
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};
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#endif // DISKMANAGER_H
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