test error messages
SERVER-3176: autoIndexId not passed if not defined to let DB decide
run a little less the test
smarter about pstats
Merge branch 'master' of github.com:mongodb/mongo
upgradeable prep (no use yet) and some slight cleaning and a writelock test
Merge branch 'master' of github.com:mongodb/mongo
perftest spinlock
spinlock default implementation was using rwlock which is suboptimal.
Merge branch 'master' of github.com:mongodb/mongo
partial fix compile
branch prediction gcc
not sure it makes a difference but reduce the footprint of desturctor guard at the expense of less precise lossing there. doesnt tend to fire anyway.
use host in writeback listener thread name
writeback listener log cleaning
fix network error code
Merge branch 'master' of github.com:mongodb/mongo
fix mutex compile
try to fix windows compile
Revert "not sure it makes a difference but reduce the footprint of desturctor guard at the expense of less precise lossing there. doesnt tend to fire anyway."

This reverts commit e4e52150dcca1994cbb3811b76f0ac1713afcf4b.