dbd%benden@lanl.gov (Dan Davison) (06/18/89)
This will be dynamically handled, possibly correctly, in 4.1.
Look in /usr/share/sys/sun[234]/KERNELNAME, at the file param.c. It
usually looks like this (near the bottom of the file)
[...]
/*
* Stream data structures.
* XXX - should be dynamically allocated.
*/
#define NBLK4096 0
#define NBLK2048 32
#define NBLK1024 12
#define NBLK512 8
#define NBLK256 32
#define NBLK128 96
#define NBLK64 240
#define NBLK16 400
#define NBLK4 128
#define NBLK (NBLK4096 + NBLK2048 + NBLK1024 + NBLK512 + NBLK256 + NBLK128 + \
NBLK64 + NBLK16 + NBLK4)
#define NSTREAM 32
#define NMUXLINK 87
[...]
Make these unbelieveable number much larger. I use:
[...]
/*
* Stream data structures.
* XXX - should be dynamically allocated. changed by dbd 2/18/89
*/
#define NBLK4096 8
#define NBLK2048 256
#define NBLK1024 96
#define NBLK512 256
#define NBLK256 1024
#define NBLK128 768
#define NBLK64 (400 + 20 * MAXUSERS)
#define NBLK16 (800 + 20 * MAXUSERS)
#define NBLK4 (392 + 20 * MAXUSERS)
#define NBLK (NBLK4096 + NBLK2048 + NBLK1024 + NBLK512 + NBLK256 + NBLK128 + \
NBLK64 + NBLK16 + NBLK4)
#define NSTREAM 32
#define NMUXLINK 87
[...]
But the canonical way to do it is to examine the results of netstat -m
and adjust the numbers accordingly:
genome# netstat -m
[...]
streams allocation:
cumulative allocation
current maximum total failures
streams 8 25 322 0
queues 26 95 1255 0
mblks 11 146 5046608 0
total dblks 11 146 4081791 0
size 4 dblks 0 48 726573 0
size 16 dblks 1 59 83047 0
size 64 dblks 2 101 1346400 0
size 128 dblks 8 45 1133056 0
size 256 dblks 0 2 573129 0
size 512 dblks 0 3 7342 0
size 1024 dblks 0 2 39407 0
size 2048 dblks 0 1 172794 0
size 4096 dblks 0 1 43 0
The idea is to not have any allocation failures. The numbers I use let me
have about 30 windows up on my 3/60. (and thanks to the Sun tech support
person who explained this to me months ago!)
dan davison / theoretical biology and biophysics/t-10 ms k710/dd@lanl.gov
los alamos national laboratory/los alamos, nm 87545 USA/505-665-1355