Yes, please. Thank you, Nikola
-----Original Message----- From: Alan Bateman <alan.bate...@oracle.com> Sent: August 6, 2020 9:49 AM To: Nikola Grcevski <nikola.grcev...@microsoft.com>; net-dev@openjdk.java.net Subject: Re: RFR(s): Improving performance of Windows socket connect on the loopback adapter On 04/08/2020 16:36, Nikola Grcevski wrote: > Hi Alan, > >> What cheap is VerifyVersionInfoW? The check is done everytime but the >> overhead might be in the noise. Overall it looks good to me. > I wrote a small benchmark to measure the overhead of the version check > (attached below). > > On my SurfaceBook 2 running Windows 10 Build 19041, the version check > measures about ~2.2us (micro seconds) on average, when the version matches. > > Elapsed time 2244us. (for 1,000 iterations) > > On a Windows 2016 Data Center Server the version check is much smaller > ~0.13us (micro seconds) on average, when the version doesn't match. > > Elapsed time 128us. (for 1,000 iterations) > > I think the overhead is reasonably small compared to everything else. Please > let me know if it's acceptable and if we can proceed. > > Okay. So do you me to sponsor this? -Alan
