Oracle HTTP Server uses locks for its internal processing, which in turn use lock files. These files are created dynamically when the lock is created and are accessed every time the lock is taken or released. If these files reside on a slower file system (for example, network file system), then there could be severe performance degradation. To counter this issue:
On Linux:
In httpd.conf, change Mutex fnctl:fileloc default to Mutex sysvsem default where fileloc is the value of the directive LockFile (two places).
On Solaris:
In httpd.conf, change Mutex fnctl:fileloc default to Mutex pthread default where fileloc is the value of the directive LockFile (two places).