Patch against 7.2.1 sources.  Uses Solaris Intimate Shared Memory for Solaris on SPARC.  Scott Brunza (sbrunza@sonalysts.com) gets credit for identifying the issue, making the change, and doing the regression tests.
Patch against 7.2.1 sources.  Uses Solaris Intimate Shared Memory
for Solaris on SPARC.  Scott Brunza (sbrunza@sonalysts.com) gets
credit for identifying the issue, making the change, and doing
the regression tests.

Earlier testing on 7.2rc2 and 7.2 showed performance gains of
1% to 10% on pgbench, osdb-pg, and some locally developed apps.

Solaris Intimate Shared Memory is described in "SOLARIS INTERNALS
Core Kernel Components" by Jim Mauro and Richard McDougall,
Copyright 2001 Sun Microsystem, Inc.  ISBN 0-13-022496-0

P.J. "Josh" Rovero

rubikloud/gpdb,tangp3/gpdb,kmjungersen/PostgresXL,rubikloud/gpdb,atris/gpdb,lintzc/gpdb,adam8157/gpdb,0x0FFF/gpdb,tangp3/gpdb,xuegang/gpdb,lisakowen/gpdb,50wu/gpdb,lisakowen/gpdb,Chibin/gpdb,randomtask1155/gpdb,greenplum-db/gpdb,tangp3/gpdb,oberstet/postgres-xl,zeroae/postgres-xl,foyzur/gpdb,Quikling/gpdb,foyzur/gpdb,chrishajas/gpdb,tpostgres-projects/tPostgres,kmjungersen/PostgresXL,0x0FFF/gpdb,techdragon/Postgres-XL,Postgres-XL/Postgres-XL,CraigHarris/gpdb,CraigHarris/gpdb,snaga/postgres-xl,ovr/postgres-xl,ashwinstar/gpdb,atris/gpdb,snaga/postgres-xl,ahachete/gpdb,adam8157/gpdb,zeroae/postgres-xl,yuanzhao/gpdb,randomtask1155/gpdb,ahachete/gpdb,rubikloud/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,arcivanov/postgres-xl,adam8157/gpdb,xuegang/gpdb,ashwinstar/gpdb,pavanvd/postgres-xl,Chibin/gpdb,greenplum-db/gpdb,0x0FFF/gpdb,chrishajas/gpdb,zaksoup/gpdb,Quikling/gpdb,xuegang/gpdb,yazun/postgres-xl,tpostgres-projects/tPostgres,50wu/gpdb,lpetrov-pivotal/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,lintzc/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,rvs/gpdb,Postgres-XL/Postgres-XL,xinzweb/gpdb,yuanzhao/gpdb,rvs/gpdb,0x0FFF/gpdb,0x0FFF/gpdb,xuegang/gpdb,xinzweb/gpdb,jmcatamney/gpdb,CraigHarris/gpdb,foyzur/gpdb,kmjungersen/PostgresXL,yazun/postgres-xl,kaknikhil/gpdb,jmcatamney/gpdb,lintzc/gpdb,kmjungersen/PostgresXL,snaga/postgres-xl,randomtask1155/gpdb,oberstet/postgres-xl,yuanzhao/gpdb,lpetrov-pivotal/gpdb,janebeckman/gpdb,janebeckman/gpdb,xinzweb/gpdb,tpostgres-projects/tPostgres,lisakowen/gpdb,zeroae/postgres-xl,greenplum-db/gpdb,postmind-net/postgres-xl,cjcjameson/gpdb,janebeckman/gpdb,rvs/gpdb,foyzur/gpdb,yuanzhao/gpdb,lpetrov-pivotal/gpdb,xuegang/gpdb,zaksoup/gpdb,jmcatamney/gpdb,ahachete/gpdb,Quikling/gpdb,edespino/gpdb,Chibin/gpdb,adam8157/gpdb,yazun/postgres-xl,snaga/postgres-xl,greenplum-db/gpdb,rubikloud/gpdb,lpetrov-pivotal/gpdb,ovr/postgres-xl,Quikling/gpdb,royc1/gpdb,CraigHarris/gpdb,atris/gpdb,cjcjameson/gpdb,janebeckman/gpdb,tangp3/gpdb,randomtask1155/gpdb,Chibin/gpdb,randomtask1155/gpdb,Quikling/gpdb,lintzc/gpdb,cjcjameson/gpdb,lintzc/gpdb,techdragon/Postgres-XL,janebeckman/gpdb,zaksoup/gpdb,cjcjameson/gpdb,adam8157/gpdb,lintzc/gpdb,lintzc/gpdb,royc1/gpdb,kmjungersen/PostgresXL,postmind-net/postgres-xl,tpostgres-projects/tPostgres,edespino/gpdb,0x0FFF/gpdb,techdragon/Postgres-XL,50wu/gpdb,pavanvd/postgres-xl,CraigHarris/gpdb,ahachete/gpdb,janebeckman/gpdb,arcivanov/postgres-xl,yazun/postgres-xl,ovr/postgres-xl,chrishajas/gpdb,edespino/gpdb,xinzweb/gpdb,ovr/postgres-xl,atris/gpdb,xinzweb/gpdb,tangp3/gpdb,foyzur/gpdb,kaknikhil/gpdb,ovr/postgres-xl,royc1/gpdb,randomtask1155/gpdb,adam8157/gpdb,yuanzhao/gpdb,kaknikhil/gpdb,lintzc/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,CraigHarris/gpdb,xinzweb/gpdb,techdragon/Postgres-XL,jmcatamney/gpdb,xuegang/gpdb,atris/gpdb,zaksoup/gpdb,ahachete/gpdb,chrishajas/gpdb,0x0FFF/gpdb,postmind-net/postgres-xl,rubikloud/gpdb,pavanvd/postgres-xl,pavanvd/postgres-xl,rvs/gpdb,jmcatamney/gpdb,tangp3/gpdb,janebeckman/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,ashwinstar/gpdb,randomtask1155/gpdb,foyzur/gpdb,cjcjameson/gpdb,zaksoup/gpdb,kaknikhil/gpdb,lisakowen/gpdb,50wu/gpdb,Chibin/gpdb,edespino/gpdb,chrishajas/gpdb,janebeckman/gpdb,edespino/gpdb,jmcatamney/gpdb,arcivanov/postgres-xl,arcivanov/postgres-xl,ashwinstar/gpdb,rvs/gpdb,lpetrov-pivotal/gpdb,pavanvd/postgres-xl,50wu/gpdb,Postgres-XL/Postgres-XL,rvs/gpdb,zeroae/postgres-xl,zaksoup/gpdb,tangp3/gpdb,50wu/gpdb,Quikling/gpdb,chrishajas/gpdb,foyzur/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,Chibin/gpdb,cjcjameson/gpdb,arcivanov/postgres-xl,adam8157/gpdb,snaga/postgres-xl,oberstet/postgres-xl,Quikling/gpdb,CraigHarris/gpdb,Chibin/gpdb,royc1/gpdb,Quikling/gpdb,atris/gpdb,greenplum-db/gpdb,rubikloud/gpdb,rubikloud/gpdb,randomtask1155/gpdb,techdragon/Postgres-XL,edespino/gpdb,kaknikhil/gpdb,lpetrov-pivotal/gpdb,atris/gpdb,ahachete/gpdb,Postgres-XL/Postgres-XL,Quikling/gpdb,kaknikhil/gpdb,zaksoup/gpdb,edespino/gpdb,lisakowen/gpdb,janebeckman/gpdb,royc1/gpdb,50wu/gpdb,lisakowen/gpdb,CraigHarris/gpdb,ahachete/gpdb,royc1/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,rvs/gpdb,rvs/gpdb,kaknikhil/gpdb,yuanzhao/gpdb,xinzweb/gpdb,CraigHarris/gpdb,xuegang/gpdb,oberstet/postgres-xl,yuanzhao/gpdb,rvs/gpdb,rvs/gpdb,zeroae/postgres-xl,zaksoup/gpdb,Postgres-XL/Postgres-XL,kaknikhil/gpdb,royc1/gpdb,oberstet/postgres-xl,xuegang/gpdb,edespino/gpdb,kaknikhil/gpdb,rubikloud/gpdb,postmind-net/postgres-xl,lintzc/gpdb,arcivanov/postgres-xl,edespino/gpdb,ahachete/gpdb,xinzweb/gpdb,Chibin/gpdb,Chibin/gpdb,0x0FFF/gpdb,tpostgres-projects/tPostgres,lisakowen/gpdb,tangp3/gpdb,yazun/postgres-xl,Chibin/gpdb,foyzur/gpdb,lisakowen/gpdb,adam8157/gpdb,postmind-net/postgres-xl,royc1/gpdb,chrishajas/gpdb,Quikling/gpdb,lpetrov-pivotal/gpdb,atris/gpdb,xuegang/gpdb,janebeckman/gpdb,edespino/gpdb,lpetrov-pivotal/gpdb,yuanzhao/gpdb,50wu/gpdb,chrishajas/gpdb