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What i basically found out that the big difference between the copy process with the finder and cp is that finder uses pread(0xd,0x18eec00,0x3000,0,0x36000)Īnd cp uses very traditional read(0x3,0x45b4,0x20000) Havin this problems especially with the finder i started ktracing the finder and cp. I am using OpenBSD 3.5 as nfs-server and OS X latest version 10.3.4. Set-NetTCPSetting -SettingName "Internet" -ForceWS Disabledįor more Detail about this, look at the spiceworks link (page 5, from the middle), posted by LeMerk.I investigated quite a lot of time in finding out what the problem isĪnd i am trying to tell you what i found out: Set-NetTCPSetting -SettingName "Internet" -DelayedAckTimeoutMs 50

Set-NetTCPSetting -SettingName "Datacenter" -ForceWS Disabled Set-NetTCPSetting -SettingName "Datacenter" -CwndRestart True

Set-NetTCPSetting -SettingName "Datacenter" -CongestionProvider DCTCP Set-NetTCPSetting -SettingName "Compat" -ForceWS Disabled Set-NetTCPSetting -SettingName "DatacenterCustom" -ForceWS Disabled Set-NetTCPSetting -SettingName "DatacenterCustom" -CwndRestart True Set-NetTCPSetting -SettingName "DatacenterCustom" -CongestionProvider CTCP Set-NetTCPSetting -SettingName "InternetCustom" -ForceWS Disabled Set-NetTCPSetting -SettingName "InternetCustom" -DelayedAckTimeoutMs 50 Set-NetTCPSetting -SettingName "InternetCustom" -CongestionProvider CTCP Just run the following PS Commands on each Server 2019. I spoke various people, and they all say, it has something to do with the different SMB Protocol. If i move the share, containing the files on the Windows Server 2019 server, for example to the Windows Server 2012 R2, opening the file takes less than 1 second! Has 8Gb RAM, 256Gb Solid State Drive, Windows 10 Pro and 1Gbps Network. It takes about 15-30 seconds to open Acrobat and the specific file. For example, when a client try to open an PDF File on the Windows Server 2019 on a share. On the Windows 2019 Server, accessing files (Word, PDF etc) is terrible slow. Active Directory Windows Server 2016 Level (Domain and Forest Level) Windows Server 2016 Server with Exchange 2016 Windows Server 2012 R2 Server with File Services (for Test purposes) Windows Server 2019 AD Server, with File Services The network is a small network, which contain the following specs: We've cleaned up all group policies, WMI Filters etc, which are no longer needed.

I just migrated from Windows Small Business Server 2011 (Windows 2008 R2) to an new environtment, containing an new Virtual Windows Server 2019 File Server.