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OS X (Apple)

Optimizing OSX

 
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Old 08-23-2008
Optimizing OSX
Hi forum,

I'm administrating a workstation/server for my lab and I was wondering how to optimize OSX. I was wondering what unnecessary background tasks I could kick off the system so I free up as much memory and cpu power.

Other optimization tips are also welcome (HD parameters, memory settings etc etc..)

I googled around but tips are far and few between... so any help is welcome.

Cheers,
Koen
 
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LEARN ABOUT MOJAVE

mpsimagedescriptor

MPSImageDescriptor(3)					 MetalPerformanceShaders.framework				     MPSImageDescriptor(3)

NAME

       MPSImageDescriptor

SYNOPSIS

       #import <MPSImage.h>

       Inherits NSObject.

   Class Methods
       (__nonnull instancetype) + imageDescriptorWithChannelFormat:width:height:featureChannels:
       (__nonnull instancetype) + imageDescriptorWithChannelFormat:width:height:featureChannels:numberOfImages:usage:

   Properties
       NSUInteger width
       NSUInteger height
       NSUInteger featureChannels
       NSUInteger numberOfImages
       MTLPixelFormat pixelFormat
       MPSImageFeatureChannelFormat channelFormat
       MTLCPUCacheMode cpuCacheMode
       MTLStorageMode storageMode
       MTLTextureUsage usage

Detailed Description
       MPSImage.h  MPSCore.framework

       Copyright:
	   Copyright (c) 2015-2017 Apple Inc. All rights reserved.  A MPSImage is a MTLTexture abstraction that allows for more than 4 channels,
	   and for temporary images.

       This depends on Metal.framework	A MPSImageDescriptor object describes a attributes of MPSImage and is used to create one (see MPSImage
       discussion below)

Method Documentation
   + (__nonnull instancetype) imageDescriptorWithChannelFormat: (MPSImageFeatureChannelFormat) channelFormat(NSUInteger) width(NSUInteger)
       height(NSUInteger) featureChannels
       Create a MPSImageDescriptor for a single read/write cnn image.

   + (__nonnull instancetype) imageDescriptorWithChannelFormat: (MPSImageFeatureChannelFormat) channelFormat(NSUInteger) width(NSUInteger)
       height(NSUInteger) featureChannels(NSUInteger) numberOfImages(MTLTextureUsage) usage
       Create a MPSImageDescriptor for a read/write cnn image with option to set usage and batch size (numberOfImages).

Property Documentation
   - channelFormat [read],  [write],  [nonatomic],  [assign]
       The storage format to use for each channel in the image.

   - cpuCacheMode [read],  [write],  [nonatomic],  [assign]
       Options to specify CPU cache mode of texture resource. Default = MTLCPUCacheModeDefaultCache

   - featureChannels [read],  [write],	[nonatomic],  [assign]
       The number of feature channels per pixel. Default = 1.

   - height [read],  [write],  [nonatomic],  [assign]
       The height of the CNN image.  The formal height of the CNN image in pixels. Default = 1.

   - numberOfImages [read],  [write],  [nonatomic],  [assign]
       The number of images for batch processing. Default = 1.

   - pixelFormat [read],  [nonatomic],	[assign]
       The MTLPixelFormat expected for the underlying texture.

   - storageMode [read],  [write],  [nonatomic],  [assign]
       To specify storage mode of texture resource.  Storage mode options:

       Default =   MTLStorageModeShared on iOS
		   MTLStorageModeManaged on Mac OSX
       MTLStorageModeShared not supported on Mac OSX.
       See Metal headers for synchronization requirements when using StorageModeManaged

   - usage [read],  [write],  [nonatomic],  [assign]
       Description of texture usage. Default = MTLTextureUsageShaderRead/Write

   - width [read],  [write],  [nonatomic],  [assign]
       The width of the CNN image.  The formal width of the CNN image in pixels. Default = 1.

Author
       Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code.

Version MetalPerformanceShaders-100				  Thu Feb 8 2018					     MPSImageDescriptor(3)