diff --git a/contrib/ipc_check/README b/contrib/ipc_check/README new file mode 100644 index 0000000000000000000000000000000000000000..392902b0d1d21843d1ba783504f7b4fdbccecde5 --- /dev/null +++ b/contrib/ipc_check/README @@ -0,0 +1,22 @@ + +This simple perl script was designed under FreeBSD, and, right now, is +limited to it. It provides a simple way of determining and directing +administrators in what has to be done to get IPC working, and configured. + +Usage: + +ipc_check.pl + + - simply checks for semaphores and shared memory being enabled + - if one or other is not enabled, appropriate "options" are provided + to get it compiled into the kernel + +ipc_check.pl -B <# of buffers> + + - checks to see if there are sufficient shared memory buffers to + run the postmaster with a -B option as provided + - if insufficient buffers are provided, appropriate 'sysctl' commands, + and instructions, are provided to the administrator to increase + them + + diff --git a/contrib/ipc_check/ipc_check.pl b/contrib/ipc_check/ipc_check.pl new file mode 100644 index 0000000000000000000000000000000000000000..cc652947188dafcd384b4d7e91d4a0a2403c8d31 --- /dev/null +++ b/contrib/ipc_check/ipc_check.pl @@ -0,0 +1,51 @@ +#!/usr/bin/perl + +# Notes ... -B 1 == 8k + +if(@ARGV > 1) { + if($ARGV[0] eq "-B") { + $buffers = $ARGV[1]; + } +} + +if($buffers > 0) { + $kb_memory_required = $buffers * 8; +} + +$shm = `sysctl kern.ipc | grep shmall`; +( $junk, $shm_amt ) = split(/ /, $shm); +chomp($shm_amt); +$sem = `sysctl kern.ipc | grep semmap`; + +print "\n\n"; +if(length($shm) > 0) { + printf "shared memory enabled: %d kB available\n", $shm_amt * 4; + if($buffers > 0) { + if($kb_memory_required / 4 > $shm_amt) { + print "\n"; + print "to provide enough shared memory for a \"-B $buffers\" setting\n"; + print "issue the following command\n\n"; + printf "\tsysctl -w kern.ipc.shmall=%d\n", $kb_memory_required / 4; + print "\nand add the following to your /etc/sysctl.conf file:\n\n"; + printf "\tkern.ipc.shmall=%d\n", $kb_memory_required / 4; + } else { + print "\n"; + print "no changes to kernel required for a \"-B $buffers\" setting\n"; + } + } +} else { + print "no shared memory support available\n"; + print "add the following option to your kernel config:\n\n"; + print "\toptions SYSVSHM\n\n"; +} + +print "\n==========================\n\n"; +if(length($sem) > 0) { + print "semaphores enabled\n"; +} else { + print "no semaphore support available\n"; + print "add the following option to your kernel config:\n\n"; + print "\toptions SYSVSEM\n\n"; +} + +