-This outlines how to increase the number of shared memory buffers
-supported by BSD/OS. By default, only 4MB of shared memory is supported
-by BSDI.
+This outlines modifications to BSD/OS for running PostgreSQL:
-Keep in mind that shared memory is not pageable. It is locked in RAM.
+1) How to increase resource limits
+2) How to increase the number of shared memory buffers
-Bruce Momjian (pgman@candle.pha.pa.us)
+Bruce Momjian (pgman@candle.pha.pa.us) 2000-06-09
---------------------------------------------------------------------------
-Increase SHMMAXPGS by 1024 for every additional 4MB of shared
-memory:
+1) To increase the amount of malloc'ed memory and files opened by
+PostgreSQL, add this:
+
+ :datasize-cur=600M:\
+ :openfiles-cur=256:
+
+to your /etc/login.conf file.
+
+---------------------------------------------------------------------------
+
+2a) By default, only 4MB of shared memory is supported by BSDI. Keep in
+mind that shared memory is not pageable. It is locked in RAM.
+
+To increase the number of buffers supported by the postmaseter, increase
+SHMMAXPGS by 1024 for every additional 4MB of shared memory:
/sys/sys/shm.h:69:#define SHMMAXPGS 1024 /* max hardware pages...
The default setting of 1024 is for a maximum of 4MB of shared memory.
For those running 4.1 or later, just recompile the kernel and reboot.
-For those running earlier releases, there are more steps outlined below.
+For those running earlier releases, see step 2b.
---------------------------------------------------------------------------
-Use bpatch to find the sysptsize value for the current kernel.
-This is computed dynamically at bootup.
+2b) For 4.01 and earlier, use bpatch to find the sysptsize value for
+the current kernel. This is computed dynamically at bootup.
$ bpatch -r sysptsize
0x9 = 9