From: Tim Llewellyn [tim.llewellyn@bbc.co.uk] Sent: Wednesday, March 15, 2000 12:23 PM To: Info-VAX@Mvb.Saic.Com Subject: Re: Is there an OpenVMS success story about this? I just looked it up in the VMS 7.2 manuals as I was interested. XQPCTL2 XQPCTL2 controls improved concurrency. The default value of XQPCTL2 is 0, which turns off improved concurrency. Setting XQPCTL2 to 1 turns on improved concurrency. This special parameter is used by Compaq and is subject to change. Do not change this parameter unless Compaq recommends that you do so. "John E. Malmberg" wrote: > Alan Greig wrote: > > > "Bill Todd" wrote: > > > If they're creating a new file for each mail message received, > > > then the problem is not in RMS but rather in the synchronous > > > nature of ODS-2 directory and file meta-data handling. > > > > Setting XQPCTL2 = 1 (improved concurrency) makes a considerable > > difference in recent releases of VMS. > > When the parameter was introduced as an add-on for OpenVMS 5.5-2, the > release notes stated that programs had to be specially written to take > advantage of it. > > Has that changed? Do the underlying language run-time libraries now use it? > I just looked it up in the VMS 7.2 manuals as I was interested. ========== XQPCTL2 XQPCTL2 controls improved concurrency. The default value of XQPCTL2 is 0, which turns off improved concurrency. Setting XQPCTL2 to 1 turns on improved concurrency. This special parameter is used by Compaq and is subject to change. Do not change this parameter unless Compaq recommends that you do so. =========== So, it seems even now it is not something to fiddle with. -- Tim Llewellyn, OpenVMS Infrastructure, Remarcs Project MedAS at the BBC, Whiteladies Road, Bristol, UK. Email tim.llewellyn@bbc.co.uk. Home tim.llewellyn@cableinet.co.uk I speak for myself only and my views in no way represent those of MedAS or the BBC.