consequently must be at least
    as high as <TT
CLASS="VARNAME"
>max_connections</TT
> plus
    <TT
CLASS="VARNAME"
>autovacuum_max_workers</TT
>, plus one extra for each 16
    allowed connections plus workers (see the formula in <A
HREF="kernel-resources.html#SYSVIPC-PARAMETERS"
>Table 17-1</A
>).  The parameter <TT
CLASS="VARNAME"
>SEMMNI</TT
>
    determines the limit on the number of semaphore sets that can
    exist on the system at one time.  Hence this parameter must be at
    least <TT
CLASS="LITE