> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Tom Marchant > Sent: 25 July, 2017 15:40 > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: REGION=0M leads to CPU through the roof > > On Mon, 24 Jul 2017 15:33:55 -0700, Gerhard Adam wrote: > > >Since the amount of storage was nearly 50 times greater than the > original, it seems that the program is clearly managing [or searching] > are large amount of storage that it doesn't need. It seems that that > might account for the CPU time increase. > > > >I see no reason why a program that successfully ran using the default > region, should suddenly allocate all the available memory just because > 0M was coded. > > > >Even though you said the increase in storage was not surprising, it > actually is. > > I agree. Increasing the region doesn't ordinarily increase the storage > utilization. > > -- > Tom Marchant
Ordinarily/usually not, but it can effect VL Getmains. If an application does an unlimited VL Getmain and is then unable to handle (the huge amount) what it received, this problem might be the result. I am testing SMFLIMxx and planning to make regionsizes Unlimited, hoping to help applications a little. So I am very interested in what mal-coded software might hang around. Kees. ******************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ******************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
