LIMITS(7) Domain/OS BSD LIMITS(7)
NAME
limits - Domain/OS limits
DESCRIPTION
The table below lists the maximum values (unless otherwise indicated) for
a wide variety of Domain/OS features.
FEATURE SR9.2 SR9.5 SR10
------- ----- ----- ----
Network:
nodes/ring (recommended) 1000 1000 1000
networks/internet 64 64 64
internet diameter 16 hops 16 hops 64
IPC sockets/node 13 23 23
(May be lower depending on current
conditions on the node.)
DM:
windows 50 50 50
pads 40 40 40
lines/pad 262143 262143 262143
chars/line 256 256 1024
paste buffers 100 100 100
fonts/pad 100 100 100
chars/keydef 256 256 1024
Aegis Shell:
command arguments 128 128 128
string|token|line length (in chars) 1024 1024 1024
pipes ~110 ~110 ~110
shell recursions ~160 ~160 ~160
(May vary depending on process
depth, script size, disk and
memory limitations.)
BSD & SysV:
length of arguments to exec 5120 5120 5120
integer value of a "char" 127 127 127
integer value of a "char" (minimum) -128 -128 -128
processes/user id 24 56 56
file size (in bytes) 4294967295 4294967295 4294967295
links to one file 65535 65535 65535
chars/password 8 8 8
open files/process 128 128 128
process id value 30000 30000 30000
bytes atomic in write to a pipe 5120 5120 5120
bytes written to a pipe in a write 5120 5120 5120
bytes/physical io block (actual) 1024 1024 1024
user or group id value 30000 30000 65535
Naming Server:
entries/directory 1300 1300 no effective limit
(less if directory contains links)
chars/leafname 32 (16 uc) 32 (16 uc) 255 (uc or lc)
chars/pathname 256 256 1023
Printing:
pixels/plot line 16k 16k equal to GPR main
memory bit map maximum.
chars/text line 1024 1024 10,000
MBX:
channels/mailbox 128 128 255
channels/process 128 128 255
remote channels/node 128 128 128
(Configurable to be fewer by node
startup file.)
IOS:
open streams 128 128 128
DSEE: (Version 2.2) (Version 3.0) (Version 3.2)
simultaneous users of one library 60 60 60
simultaneous users of libraries 60 60 60
on one node
branches in an element 32000 32000 32000
versions on a branch 32000 32000 32000
single version size (in lines) 200000 200000 200000
components in a model 32767 32767 32767
levels that components in a model 31 31 31
can be nested
libraries referenced by one model 63 128 128
GPR:
bitmap dimensions (x,y) 8192 x 8192 8192 x 8192 8192 x 8192
bitmap planes 8 8 8
hidden memory bitmap (x,y) 224 x 224 224 x 224 224 x 224
GMR2D:
metafile size (bytes):
DN3xx, DN550 7 MB 7 MB 7 MB
DNx60 250 MB 250 MB 250 MB
DN3xxx, DN560 56 MB 56 MB 56 MB
ablocks/user 40 40 40
aclasses/user 16 16 16
vertices in polylines 1000 1000 1000
vertices in polygons 1000 1000 1000
open metafiles 16 16 16
font families 8 8 8
fonts (stroke and raster) 32 32 32
segments 65536 65536 65536
GMR3D:
metafile size (bytes):
DN3xx, DN550 7 MB 7 MB 7 MB
DNx60 250 MB 250 MB 250 MB
DN3xxx, DN560, DN570, DN580 56 MB 56 MB 56 MB
ablocks/user 40 40 40
aclasses/user 16 16 16
vertices in polylines 1024 1024 1024
vertices in polygons 1024 1024 1024
vertices in mesh 1024 1024 1024
element length (in words) 32767 32767 32767
viewports 64 64 64
path depth for picking, 32 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 2M
tasks and techniques 32K 32K 32K
menu and switch entries 1368 1368 1368
/com/ed
file size (in bytes) 256,000 256,000 256,000
file length (in lines) 6,000 6,000 6,000
/com/fpat
maximum argument length (characters) 128 128 128
/com/fpatb
block length (in bytes) 15,000 15,000 15,000
/com/fmc
Misc:
user processes 24 56 56
(lower on internet routers
or when NETSVC -SERVERS is used)
mappable user segments (not protected):
16 MB VA's 312 312 312
256 MB 460's 7679 7423 7423
256 MB 020's 230Mb 230Mb
(7360 segs.)
64 MB 020's 1656 1656 1656
64 MB 3000's 1664 1600 1600
2 GB Turbo's 60927 60927 60927
N-key rollover on keyboard 6 6 6
stack size 256K 256K settable (default = 256k)
entries/ACL 22 22 22