(FACC) ASDG Inc Floppy Accelerator Software Disk

[Sim085]

Anyone knows what this software was and how it worked?

I was browsing ebay and encountered this software;
https://www.ebay.ie/itm/204039744006...3ABFBMkOiKqJli

I tried looking over the internet to find what it is and how it works but could not find much.

Was it a software to accelerate the amiga without an accelerator card?
Was it a software to accelerate the floppy drive?

What was it?

[Dan]

Here is an extracted text from Workbench magazine (Amiga Users Group, Melbourne) Issue 22.pdf (found online by searching for "Floppy Accelerator" amiga)

FACC Review
by Chris Tremelling
Facc (Floppy Accelerator) is a disk caching program
which can dramatically increase floppy disk
throughput. Although similar to "Addbuffers", Facc
offers a number of advantages:
i The number of buffers can be increased or
decreased with the touch of an icon at any time.
ii Facc's buffers can use fast memory, whereas the
AmigaDOS utility "Addbuffers" can only use chip
memory.
iii Buffers are dynamically directed to the busiest
disk.
iv If memory becomes very low, Facc can be closed.
Once Addbuffers has been run it can't be deleted
until a reboot.
A disk cache is an area of memory used for buffering
disk blocks. If a program needs to read information
from disk and that information is already in the
cache, then the in-memory copy is returned, which
means the disk doesn't have to be read. If this
information is not in the cache, then it is read from
disk and a copy kept in the cache. Successive reads
of that information are nearly instantaneous.
Copying from the buffer is a lot faster than copying
from disk.
When a block is written to disk, a copy is also kept
in the cache for later reuse. Each disk block in the
cache occupies one buffer. These buffers are reused
according to the LRU (Least Recently Used) algorithm.
The effectiveness of disk caching can only be
realized when the data being accessed is already in
the cache. If the cache is too small, blocks are
aged out before they can be re-read. The user can
adjust the size of the cache until effective caching
is achieved. Facc provides a small screen with
statistics which allows you to measure this
effectiveness.
Using the Word Perfect spelling checker as a guide,
the time required to check the spelling in a 600 word
document was measured with different cache sizes.
Note: All times included loading the cache, and each
buffer is 544 bytes.

Cache size: Time:
0 2 minutes (No Facc)
150 2 minutes (Caching not effective)
300 1 minute 18 seconds
450 1 minute

From this table we can see that the larger the cache,
the greater the time saved. With larger documents
and cache, the savings would be even greater (eg:
6100 word document in 7 minutes).
While a ram disk may be even faster, Facc avoids the
need to load up a ram disk and can reduce the wear
and tear on floppy drives.
The advantages and ease of use of Facc make it
worthwhile for any application that heavily uses the
floppy disk drives.
[Editor's note: I've read what's written on the Facc
box, and it seems to imply that it only works for
floppy disks. Can anyone tell me if it will cache
hard disk sectors?]

[Sim085]

Thank you.