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LIMITS -- DOMAIN System Limits                                          86/12/08

  The  table  below  lists the MAXIMUM VALUES (unless otherwise indicated) for a
  wide variety of DOMAIN system features.

FEATURE                                     SR9.2          SR9.5
-------                                     -----          -----

Network:
    nodes/ring (recommended)                1000           1000
    networks/internet                       64             64
    internet diameter                       16 hops        16 hops
    IPC sockets/node                        13             23
      (May be lower depending on current
       conditions on the node.)

DM:
    windows                                 50             50
    pads                                    40             40
    lines/pad                               262143         262143
    chars/line                              256            256
    paste buffers                           100            100
    fonts/pad                               100            100

Aegis Shell:
    command arguments                       128            128
    string|token|line length (in chars)     1024           1024
    chars/pathname                          256            256
    pipes                                   ~110           ~110
    shell recursions                        ~160           ~160
      (May vary depending on process
       depth and script size.)

DOMAIN/IX:
    length of arguments to exec             5120           5120
    integer value of a "char"               127            127
    integer value of a "char" (minimum)     -128           -128
    processes/user id                       24             56
    file size (in bytes)                    4294967295     4294967295
    links to one file                       65535          65535
    chars/filename                          32 (16 UC)     32 (16 UC)
    chars/pathname                          256            256
    chars/password                          12             12
    open files/process                      128            128
    process id value                        30000          30000
    bytes atomic in write to a pipe         5120           5120
    bytes written to a pipe in a write      5120           5120
    bytes/physical io block (actual)        1024           1024
    user or group id value                  30000          30000

Naming Server:
    entries/directory                       1300           1300
      (less if directory contains links)
    chars/leafname                          32 (16 UC)     32 (16 UC)

Printing:
    pixels/plot line                        16k            16k
    chars/text line                         1024           1024

MBX:
    channels/mailbox                        128            128
    channels/process                        128            128
    remote channels/node                    128            128
      (Configurable to be fewer by node
       startup file.)

IOS:
    open streams                            128            128

DSEE:
    simultaneous users of one library       60             60
    simultaneous users of libraries         60             60
       on one node
    branches in an element                  32000          32000
    versions on a branch                    32000          32000
    single version size (in lines)          200000         200000
    components in a model                   32767          32767
    levels that components in a model       31             31
      can be nested
    libraries referenced by one model       63             63

GPR:
    bitmap dimensions (x,y)                 8192 x 8192    8192 x 8192
    bitmap planes                           8              8
    hidden memory bitmap (x,y)              224 x 224      224 x 224

GMR2D:
    metafile size (bytes):
      DN3xx, DN550                          7 MB           7 MB
      DNx60                                 250 MB         250 MB
      DN3xxx, DN560                         56 MB          56 MB
    ablocks/user                            40             40
    aclasses/user                           16             16
    vertices in polylines                   1000           1000
    vertices in polygons                    1000           1000
    open metafiles                          16             16
    font families                           8              8
    fonts (stroke and raster)               32             32
    segments                                65536          65536

GMR3D:
    metafile size (bytes):
      DN3xx, DN550                          7 MB           7 MB
      DNx60                                 250 MB         250 MB
      DN3xxx, DN560, DN570, DN580           56 MB          56 MB
    ablocks/user                            40             40
    aclasses/user                           16             16
    vertices in polylines                   1024           1024
    vertices in polygons                    1024           1024
    vertices in mesh                        1024           1024
    element length (in words)               32767          32767
    viewports                               64             64
    path depth for picking,                 32             32
      dynamic mode and echoing

GSR (future limits):
    gao instruction length (in words)              32767
    buffer length (in words)                       16#7FFFFFFF

Dialogue:
    .DPD file size (in words)               256K           2M
    tasks and techniques                    32K            32K
    menu and switch entries                 1368           1368

Misc:
    user processes                          24             56
      (lower on internet routers
       or when NETSVC -SERVERS is used)
    mappable user segments (not protected):
      16 MB VA's                            312            312
     256 MB 460's                           7679           7423
      64 MB 020's                           1656           1656
      64 MB 3000's                          1664           1600
       2 GB Turbo's                         60927          60927
    N-key rollover on keyboard              6              6
    stack size                              256K           256K
    entries/ACL                             22             22

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026