Package org.eclipse.jgit.storage.file
Class WindowCacheConfig
- java.lang.Object
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- org.eclipse.jgit.storage.file.WindowCacheConfig
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public class WindowCacheConfig extends Object
Configuration parameters for JVM-wide buffer cache used by JGit.
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Constructor Summary
Constructors Constructor Description WindowCacheConfig()
Create a default configuration.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description WindowCacheConfig
fromConfig(Config rc)
Update properties by setting fields from the configuration.int
getDeltaBaseCacheLimit()
long
getPackedGitLimit()
int
getPackedGitOpenFiles()
int
getPackedGitWindowSize()
int
getStreamFileThreshold()
void
install()
Install this configuration as the live settings.boolean
isPackedGitMMAP()
void
setDeltaBaseCacheLimit(int newLimit)
void
setPackedGitLimit(long newLimit)
void
setPackedGitMMAP(boolean usemmap)
void
setPackedGitOpenFiles(int fdLimit)
void
setPackedGitWindowSize(int newSize)
void
setStreamFileThreshold(int newLimit)
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Field Detail
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KB
public static final int KB
1024 (number of bytes in one kibibyte/kilobyte)- See Also:
- Constant Field Values
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MB
public static final int MB
1024KB
(number of bytes in one mebibyte/megabyte)- See Also:
- Constant Field Values
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Method Detail
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getPackedGitOpenFiles
public int getPackedGitOpenFiles()
- Returns:
- maximum number of streams to open at a time. Open packs count against the process limits. Default is 128.
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setPackedGitOpenFiles
public void setPackedGitOpenFiles(int fdLimit)
- Parameters:
fdLimit
- maximum number of streams to open at a time. Open packs count against the process limits
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getPackedGitLimit
public long getPackedGitLimit()
- Returns:
- maximum number bytes of heap memory to dedicate to caching pack file data. Default is 10 MB.
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setPackedGitLimit
public void setPackedGitLimit(long newLimit)
- Parameters:
newLimit
- maximum number bytes of heap memory to dedicate to caching pack file data.
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getPackedGitWindowSize
public int getPackedGitWindowSize()
- Returns:
- size in bytes of a single window mapped or read in from the pack file. Default is 8 KB.
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setPackedGitWindowSize
public void setPackedGitWindowSize(int newSize)
- Parameters:
newSize
- size in bytes of a single window read in from the pack file.
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isPackedGitMMAP
public boolean isPackedGitMMAP()
- Returns:
- true enables use of Java NIO virtual memory mapping for windows; false reads entire window into a byte[] with standard read calls. Default false.
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setPackedGitMMAP
public void setPackedGitMMAP(boolean usemmap)
- Parameters:
usemmap
- true enables use of Java NIO virtual memory mapping for windows; false reads entire window into a byte[] with standard read calls.
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getDeltaBaseCacheLimit
public int getDeltaBaseCacheLimit()
- Returns:
- maximum number of bytes to cache in delta base cache for inflated, recently accessed objects, without delta chains. Default 10 MB.
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setDeltaBaseCacheLimit
public void setDeltaBaseCacheLimit(int newLimit)
- Parameters:
newLimit
- maximum number of bytes to cache in delta base cache for inflated, recently accessed objects, without delta chains.
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getStreamFileThreshold
public int getStreamFileThreshold()
- Returns:
- the size threshold beyond which objects must be streamed.
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setStreamFileThreshold
public void setStreamFileThreshold(int newLimit)
- Parameters:
newLimit
- new byte limit for objects that must be streamed. Objects smaller than this size can be obtained as a contiguous byte array, while objects bigger than this size require using anObjectStream
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fromConfig
public WindowCacheConfig fromConfig(Config rc)
Update properties by setting fields from the configuration.If a property is not defined in the configuration, then it is left unmodified.
- Parameters:
rc
- configuration to read properties from.- Returns:
this
.- Since:
- 3.0
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install
public void install()
Install this configuration as the live settings.The new configuration is applied immediately. If the new limits are smaller than what what is currently cached, older entries will be purged as soon as possible to allow the cache to meet the new limit.
- Since:
- 3.0
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