44 lines
1.7 KiB
Plaintext
44 lines
1.7 KiB
Plaintext
AST RESEARCH TECHNICAL BULLETIN TB-0237 09/24/86
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AST-NETBIOS MEMORY USE
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AST-NETBIOS uses RAM memory to perform network functions similar
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to the ROM found on IBM's PC Network board. One of the features
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of this method was that current users of AST-PCNET and PCNET II
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could update existing software without requiring a hardware
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change.
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However, due to the RAM memory used by DOS, AST-NETBIOS, and
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IBM'S PC LAN program, users have found it necessary to trim
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memory use to load large application programs. The following
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information will aid in optimizing AST-NETBIOS for this purpose:
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1. AST-NETBIOS is default configured for a
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"REDIRECTOR" configuration and takes about
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75K bytes of RAM. On the server PC, the
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NETWORK Program alone requires 256K bytes of
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memory and NETBIOS must be increased to
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handle the load (as per the README file
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found on AST-NETBIOS 1.0-1.3 disks). Any
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increase in the NETBIOS parameters specified
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will consume memory as per the list below.
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a. Open sessions used 112 bytes of
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memory per open session.
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b. Commands used 112 bytes of
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memory per command.
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c. Small packets used 416 bytes
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per packet.
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d. Large packets used 1184 bytes
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per packet.
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This information was obtained by running PC-DOS Version 3.20
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CHKDISK commands on a non-network drive. An IBM PC/XT was used,
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the version of NETBIOS was Version 1.30.
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