# of StoreEntries > # of filemap bits set?

I just noticed the following in the cachemgr output of Squid
2.2.STABLE3:

    Internal Data Structures:
           1242824 StoreEntries
             26168 StoreEntries with MemObjects
             26103 Hot Object Cache Items
            867850 Filemap bits set
            868168 on-disk objects

Why is the number of StoreEntries much larger than the number of filemap
bits set and on-disk objects?

According to the Memory Utilization menu of cachemgr there are 1311250
Store Entries (56 bytes each) and 1311250 MD5 digest (16 bytes)
allocated of which there are 1242824 in real use. I get the impression
that I'm using 25-30MB of memory for StoreEntries and MD5 digests for
which I do not have any cached data on disk :-). What's the reason for
doing this?

Has it to do with the following message from the last startup?

        1999/05/24 20:11:11| 403961 Objects cancelled.

The amount of objects cancelled is approximately the difference I am
seeing.

Arjan
Received on Tue May 25 1999 - 12:44:24 MDT