cpu

I have to split a huge file into many smaller files. Each of the destination files is defined by an offset and length as the number of bytes. I'm using the following code: private void copy(string srcFile, string dstFile, int offset, int length) { BinaryReader reader = new BinaryReader(File.OpenRead(srcFile)); reader.BaseStream.Seek(offset, SeekOrigin.Begin); byte[] buffer = reader.ReadBytes(length); BinaryWriter writer = new BinaryWriter(File.OpenWrite(dstFile)); writer.Write(buffer); } Considering that I have to call this function about 100,000 times, it is remarkably slow. Is there a way to

I'm struggling to understand what happens when the first two levels of the Translation Lookaside Buffer result in misses? I am unsure whether "page walking" occurs in special hardware circuitry, or whether the page tables are stored in the L2/L3 cache, or whether they only reside in main memory. Modern x86 microarchitectures have dedicated page-walk hardware . They can even speculatively do page-walks to load TLB entries before a TLB miss actually happens . Skylake can even have two page walks in flight at once, see Section 2.1.3 of Intel's optimization manual . This may be related to the page