Method for vectoring pread/pwrite system calls

A method of operating a computer system, the method comprising:

• initiating an execution of an application program on the computer system;
• creating a data transfer list in response to executing the application program, wherein the data transfer list comprises N entries, each entry comprising a file sector descriptor and a buffer address;
• initiating an operating system call;
• performing N data transfers after initiating the operating system call, wherein:
• a first data transfer comprises transferring data between a first file sector and a first buffer identified by a first file sector descriptor and a first buffer address, respectively, contained in a first entry of the data transfer list, and;
• an Nth data transfer comprises transferring data between a Nth file sector and a Nth buffer identified by a Nth file sector descriptor and a Nth buffer address, respectively, contained in a Nth entry of the data transfer list.

A method of operating a computer system, the method comprising:

• initiating an execution of an application program on the computer system;
• creating a data transfer list in response to executing the application program, wherein the data transfer list comprises N entries, each entry comprising a first descriptor and a buffer address;
• initiating an operating system call;
• performing N data transfers after initiating the operating system call;
• wherein a first data transfer of the N data transfers comprises transferring data between a first memory location in I/O space and a first main memory buffer in identified by a first descriptor and a first main memory buffer address, respectively, contained in a first entry of the data transfer list, and;
• wherein an Nth data transfer of the N data transfers comprises transferring data between a Nth first memory location in I/O space and a Nth main memory buffer identified by a Nth descriptor and a Nth buffer address, respectively, contained in a Nth entry of the data transfer list.