Home > Storage > PowerScale (Isilon) > Industry Solutions and Verticals > Media and Entertainment > PowerScale OneFS: macOS Client Performance and User Experience Optimization > /etc/sysct.conf
In previous versions of macOS it was possible to change the default delayed_ack value using /etc/sysctl.conf. MacOS now ignores delayed_ack settings in this file. As such, alternative methods such Launch Deamon plist files are required to make changes to delayed_ack persist across reboots. Creation of Launch Deamons is beyond the scope of this document.