dbc_max_pct(5) OBSOLETED dbc_max_pct(5)NAME
dbc_max_pct, dbc_min_pct, bufcache_max_pct, bufpages, nbuf - OBSOLETED
kernel tunable parameter
These tunables have been obsoleted and removed. Do not make any
changes to these tunables, as they have no effect on the kernel.
Use the file cache tunables and (see filecache_max(5)).
In previous releases, the tunables and were used to set limits to the
dynamic buffer cache, and the tunables and were used for tuning the
buffer cache when a static cache was desired.
This release of HP-UX offers improved file caching technology and
improved physical memory control associated to caching file I/O data.
The number of tunable parameters used to control file caching memory
usage is reduced from five to two, and previous usability issues are
Restrictions on Changing
These tunables should not be modified. Attempting to tune any of the
obsolete buffer cache tunables, or results in an error.
Use the tunables and to set limits on the file cache. Note that, on a
any given system, the optimum values of these two new tunables are not
necessarily equivalent to the optimum values of the obsolete buffer
cache tunable values in the older systems. You should first determine
if the new default values yield acceptable performance on your system,
before attempting to change the values of the new file cache tunables.
and were developed by HP.
Kernel Tunable Parameter dbc_max_pct(5)