> I'm planning on continuing to increase XLOG_BLCKSZ and wal_buffers to > determine when the throughput starts to level out or drop
I think for an even better comparison you should scale wal_buffers down with increasing XLOG_BLCKSZ, so that the xlog buffer has a fixed size in kb. Reasonable wal_buffers imho amount to at least 256kb, better yet 512 or 1 Mb, with sufficiently large transactions (and to try to factor out the difference between blocksizes). Andreas ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings