Home > Storage > PowerScale (Isilon) > Industry Solutions and Verticals > Media and Entertainment > PowerScale OneFS: macOS Client Performance and User Experience Optimization > Boot arguments
Several boot arguments (boot-args) can be configured to increase the amount of system resources allocated to network performance in macOS. These include increasing network buffer size and enabling ServerPerfMode (Intel Macs only).
Configuring boot-args must be done from the macOS terminal while the system is booted into Recovery Mode. Apple describes the process of booting to recovery mode in the article Mac startup key combinations.
To view boot-args, run the following terminal command:
nvram boot-args
Setting boot-args explicitly from the command line will overwrite existing boot-args. Apple provides sample code in the KB article about ServerPerfMode that uses sed and cut to append existing boot-args to newly set ones. The example in that article is for ServerPerfMode and can be adapted for other settings such as ncl.
Client systems have a finite number of resources. Allocating additional system resources to the network stack means that there is less RAM and CPU available for other purposes. Administrators need to be aware of the implications of changing the defaults (as outlined below) and should be prepared to roll the changes back if the client systems become constrained.