Re: max_wal_senders must die

Josh Berkus wrote:
> If we could agree on some workloads, I could run some benchmarks.  I'm
> not sure what those would be though, given that COPY and ALTER TABLE
> aren't generally included in most benchmarks.

You can usefully and easily benchmark this by timing a simple pgbench 
initialization at a decently large scale.  The COPY used to populate the 
giant accounts table takes advantage of the WAL bypass fast path if 
available, and you can watch performance tank the minute one of the 
options that disables it is turned on.

-- 
Greg Smith, 2ndQuadrant US greg@2ndQuadrant.com Baltimore, MD
PostgreSQL Training, Services and Support  www.2ndQuadrant.us