ICM Statistics - Suppressed Cache Entries

Well, I've done the usual search in SAP xSearch and Google, not to mention checking the application help, but I can't seem to find the answer.
We have a CRM ABAP 7.0 system (kernel 7.01). When I display the ICM statistics for the HTTP Server Cache (txn SMICM), I see:
Cache Statistics
   Cache Size (Bytes)                         52428,800
   Occupied Cache Memory (Bytes)              52422,656
   Maximum Number of Cache Entries               10,000
   Current Number of Cache Entries                5,968
Number of Suppressed Cache Entries            55,593
   Total Number of Cache Accesses             27134,021
   Number of Cachable Accesses                28224,213
   Number of Cache Hits                       23749,222             84.14 %
   Number of Failed Cache Accesses            4,474,991             15.86 %
   Number of Cache Hits in Memory             23749,222             84.14 %
   Maximum Number of UFO Entries                  2,000
   Current Number of UFO Entries                      0
   Number of Accesses to UFO List                   416
   Number of UFO Hits                                44
What, pray tell, are "Suppressed Cache Entries" (in red above) are what are their effects on the Server Cache performance? Do I need to 'care' about these suppressed entries?
Regards,
bryan

Thanks to Ashutosh and Clébio for responding to my query.
Ashutosh , the link you supplied was interesting and it is possible that web error pages, such as "400 session timed out", could be the so-called suppressed cache pages.
Clébio, As for "the number of entries in the cache that have been deleted to release space to new ones," I think the message that would be relevant to that action is the CCMS alert "EvictedEntries". I'm not certain as that is anotehr alert that isn't very well documented.
bryan

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Hi
You can go to RSRT
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Edited by: M.A on May 21, 2008 4:15 PM

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Hi Gurus,
I have few questions on Cache purging
1>How many types of purging.
2>Is it possible to purge the cache based on tables i.e.(if entries are generated on table A only that entries should purge in cache manager).
3>Is it possible to purge the cache based on Subject Areas i.e.(if entries generated on subject area A only that entries should purge in cache manager).
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The same you can get it from Helpfile
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In Cache mode, select the entries to purge from those displayed in the right pane.
In Physical mode, select the database, catalog, schema or tables to purge from the explorer tree in the left pane.
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All cache entries associated with one or more selected tables.
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