Re: Bug fix in AIO initialization

From: Suparna Bhattacharya (
Date: Tue Jul 08 2003 - 13:13:26 EST

On Tue, Jul 08, 2003 at 11:53:45AM +0200, Wim ten Have wrote:
> Is there a definition how long system calls take when i issue
> asynchronous read/write requests? The purpose is to not block
> but occasionally i measure up to 100's of milliseconds before
> the request is accepted or returns that there are currently
> no resources making me try again. Is this normal?

Is this with vanilla 2.5 kernels or recent -mm kernels ?

Are you doing async O_DIRECT reads/writes or regular filesystem
aio read/writes ?


Suparna Bhattacharya (
Linux Technology Center
IBM Software Labs, India

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