Acknowledgements
The following people contributed to this report:
Cherie Barnes
Dorothea Bauer
Marc Beyerle
Bill Bitner
Victor Boyarintsev
Anthony Cali
Bill Cosnett
Dean DiTommaso
Tom Doster
Wes Ernsberger
John Franciscovich
Bill Guzior
Steve Jones
Virg Meredith
Bob Neill
Bernd Nitsch
Dorin Pascar
Bailey (Bei) Peng
Patty Rando
Walter Roth
Ann Shepherd
Dave Spencer
Marek Szermutzky
Joe Tingley
Xenia Tkatschow
Irina Volodina
Brian Wade
David Wierbowski
Thorsten Winkler
Editor's Note for the z/VM 5.4 Edition
In June 2008 our longtime z/VM Performance Report editor, Wes Ernsberger, retired after more than 39 years of faithful service to IBM, many of which he gave to z/VM and its predecessors. Starting with z/VM 5.4, the responsibility of coordinating, editing, and publishing the report falls to me.
In 1785 Benjamin Franklin retired from his six-year post as American Minister to France. Appointed to fill the position was none other than Thomas Jefferson. When Jefferson arrived in France, the French Foreign Minister, Charles Gravier, comte de Vergennes, asked him: "Is it you who replace Dr. Franklin?" Jefferson, himself a genius statesman, replied, "Sir, I am only his successor. No one can replace Dr. Franklin."
And so it is with you, Wes. Best wishes in your retirement.
Brian Wade
September 19, 2008
Editor's Note for the z/VM 6.4 Edition
During the development of z/VM 6.4 our longtime mentor, colleague, and friend Virg Meredith retired after 52 years of faithful service to the performance of IBM's mainframes. Virg spent many of those years helping both the VM products and literally generations of VMers to become the best they could be. Virg, we miss you and wish you the very best in your retirement.
Brian Wade
November 11, 2016
Editor's Note for the z/VM 7.3 Edition
Today is the day z/VM 7.3 becomes generally available, or, as we say, "goes GA." Noticing some time ago that today would be a day of new beginnings, our longtime friend and colleague Dave Spencer decided today would be his retirement day. Over a period of about 55 years, Dave spent about 53 years in the service of IBM as a Z Systems performance specialist. Why the difference? Over those 55 years, IBM laid Dave off not once, not twice, but seven times. I am so grateful Dave kept coming back. He was a huge help to me, and his famous "cache killer" workloads really wrung out the hardware. Dave, best wishes in your retirement.
During the development of z/VM 7.3 our performance alumnus Bill Bitner retired after 38 years of service to IBM. Before moving on to his final IBM role, that of a customer care specialist, Bill spent many years in z/VM Performance and served as its lead for much of that time. Bill's contributions to helping customers understand z/VM performance were so notable that when he was elected to the Order of the Knights of VM, he was given the name "Sir Bit the Performer." Bill, best wishes in your retirement.
Brian Wade
September 16, 2022
Other Notes
In memoriam, Joe Tingley, May 10, 2012.
In memoriam, Dean DiTommaso, September 6, 2017.