ZipStream Monitor

The ZipStream Monitor utility is used to monitor the performance and 
operation of ZipStream's compression system.  When run it will display a 
window, as shown below, that will be continuously updated at approximately 
1.5 second intervals. 

If this window is hidden or minimised the monitor will display a smaller 
window containing compacted information as shown below: 

The compacted view reports (in the following order): Outstanding 
Files,Compression Ratio, Compression Percentage, Current File. 

The ZipStream Monitor main view reports the following information: 

Outstanding Files   

This is the number of files that are awaiting background compression in 
ZipStream. 

Rescheduled Files   

This is the number of files that have been rescheduled for background 
compression in ZipStream. 

Files Processed   

This is the total number of files that have been compressed by the 
compression system since the last system boot. 

Bytes In   

This is the total number of uncompressed bytes compressed by the 
compression system since the last system boot. 

Bytes Out   

This is the total number of compressed bytes output by the compression 
system since the last system boot. 

Bytes Saved   

This is the total number of bytes saved by the compression system since 
the last system boot. 

Compression Ratio 

This is the overall compression ratio statistic which has been achieved 
since the last system boot.  Both Ratio and Percentage information is 
reported.  A compression ratio of 50% means that the files have been 
reduced to half their original size or a 2:1 reduction.  The higher the 
value here, the better the compression system is performing e.g.  67% 
means that files have been reduced in size to one third of their original 
size. 

Search Cache 

This is the search cache hit ratio statistic, which has been collected 
since the last system boot.  The higher the value here, the better the 
search cache is performing.  ZipStream's search cache is used to optimise 
access to files. 

Grip Cache 

This information provides utilisation information on ZipStream's grip 
cache. 

The grip cache is a part of ZipStream's Virtual File Cache that is used to 
keep decompressed files in memory after they are no longer in use in the 
hope that the user or application may request the information again 
shortly. After one minute the contents of this cache are freed so that the 
memory can be used for other purposes and not have a negative impact on 
system performance. 

Normally this utilisation value should be low or zero with infrequent 
peaks of up to 75 percent. Should this value be consistently high, you may 
need to increase your grip cache allocation via the ZipStream control 
panel. 

Processing File 

This is the path name of the current file being processed by the 
background compression system.  If no file is currently being processed, 
then the monitor will report 'sleeping'.