From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Allison Subject: Re: Mounts to Windows 7 and "out of memory" or "insufficient server resources" Date: Tue, 27 Sep 2011 16:01:55 -0700 Message-ID: <20110927230155.GF23739@samba2> References: Reply-To: Jeremy Allison Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, samba-technical To: Steve French Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-cifs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: On Tue, Sep 27, 2011 at 04:36:22PM -0500, Steve French wrote: > FYI - The cifs async write in 3.0 seems to exacerbate problems running > out of memory (apparently) on the Windows 7 system (running as a > server) after a large file copy to the server completes. I have been > able to reproduce the same problem on Windows Vista Service Pack 2 > (which is a good news/bad news story since my earlier testing on > Windows Vista showed hangs on some requests rather than returning out > of memory). Does not seem to be a problem with any of the Windows > server versions just Windows 7 and Vista so far. > > As Pavel noted in an earlier note, increasing MaxWorkItems to 4096 in > the Windows registry solves this. > > The cifs async write code does increase large file copy speed > dramatically (more than 15% in most environments) - but we are working > through how to handle the Windows7/WindowsVista problem to see if > there are workarounds. Have you notified the Microsoft engineers about this ? I can give you the right names to bug... Jeremy.