The Doctor: > > You may also play with berkeley_db_read_buffer_size. The Berkeley > > DB documentation promises that they accept buffer sizes of 20kB or > > more, and their default is 256kB. If someone has screwed up Berkeley > > DB, then perhaps it helps to specify berkeley_db_read_buffer_size > > of 262144 (262144 = 256*1024). Hopefully they still accept that. > > What tweak is needed in the main.cf to make such a change? > > > > > http://docs.oracle.com/cd/E17076_02/html/api_reference/C/dbset_cachesize.html
# postconf berkeley_db_read_buffer_size=262144 # postfix reload (or start)
