RE: Multithreaded File Writes

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Shri Borde [MS] (sborde_at_online.microsoft.com)
Date: 07/09/04 

Date: Fri, 09 Jul 2004 23:25:08 GMT

What is the CPU doing when its idle and there is no disk activity. You
should use a profiler to find out what is going on.

I dont think that writing from multiple threads could speed up the disk
writes.

Shri Borde [MSFT]

This posting is provided "AS IS" with no warranties, and confers no rights.
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> From: "Robin Day" <robin.day@advorto.com>
> Subject: Multithreaded File Writes
> Date: Fri, 2 Jul 2004 17:37:42 +0100
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> I have a system (written in C#) which writes out a large number of small
> textfiles. (300,000+)
> Performance is an issue here, during the actual writing of the files stage
> of the application the processor runs at approx 20% and there is not
> continuous disk activity. You can also continue to use the machine hardly
> noticing any performance change in other applications.
> I have a theory that if I fire of the file writes in a multi threaded way
> then it may allow windows to make more use of the disk and processor in
> order to complete this part of the application faster.
> Has anyone had a similar task to do, or can anyone point me in the
direction
> of some good multi threaded file writing code in order to do this?
>
> Many Thanks in Advance
> Robin
>
>
>