This option sets a lower limit to the cache. If -c is specified, and -cl is not specified, then the minimum cache size is
set to the initial cache size (the -c setting). If neither -c nor -cl is set, the minimum cache is set to a low, constant
value, so that the cache can shrink if necessary. On Windows platforms, this value is 2 MB.
The size is the amount of memory, in bytes. Use k, m, or g to specify units of kilobytes, megabytes, or gigabytes, respectively.
The unit p is a percentage either of the physical system memory, or of the maximum supported cache size, whichever is lower. The maximum
supported cache size depends on the operating system. For example:
2.5 GB for Windows 32-bit Advanced Server, Enterprise Server, and Datacenter Server
3.5 GB for the 32-bit database server running on Windows x64 Edition
1.5 GB on all other 32-bit systems
On Windows Mobile, available physical memory limits the cache size is limited by available physical memory
On 64-bit database servers, the cache size can be considered unlimited
If you use p, the argument is a percentage. You can use % as an alternative to p, but on Windows, which uses % as an environment variable escape character, you must escape the % character.
For example, to set the minimum cache size to 50 percent of the physical system memory, run the following command:
dbsrv16 -cl 50%% ...
If you attempt to set your initial or minimum cache sizes to a value that is less than one eighth of the maximum cache size,
the initial and minimum cache sizes are automatically increased relative to the supported cache size.