A software solution for sharing Perl objects between processes on multiple RAM drives. Optimized for performance and reliability, this tool enables seamless communication and data transfer between processes for efficient memory utilization.
Cache::RamDisk is a Perl module that is designed to facilitate the sharing of Perl objects between multiple processes while minimizing the issues that often arise with other inter-process communication (IPC) tools. This module addresses the limitations of message queues, the complexity of shared memory, and the additional processes required for socket communication by instead using a file-based approach.
The module allows for the consolidation of multiple ramdisks into a single bundle that can hold the required user space based on the parameters used during compilation of the individual kernel. The user and group ownership for the cache can also be specified for the entire bundle.
To begin using Cache::RamDisk, the cache_install function can be called during the application's start phase. This requires specifying a few parameters, such as the base directory for the ramdisks, the size and number of inodes, and the shared memory flag. Specific keys can also be assigned and associated with certain sizes based on application needs.
In the content handler code, the MyApp::Fie package can be imported and used to retrieve data from the cache. The cache is accessed through a new instance of Cache::RamDisk, which is obtained using the specified base directory and cache replacement policy. The get() function is then called, passing in a hash reference that associates a specific key with the desired value. If the value is not found, additional database logic is executed to retrieve the data and store it in the cache for future retrieval.
In a later cgi script, the Cache::RamDisk::Functions package can be imported to check the status of the cache. The key_stat() function can be used to retrieve the number of items for a specific key, such as 'fie'.
Finally, cache_remove() should be called upon application shutdown to remove the cache and any associated data.
Overall, Cache::RamDisk provides a simple and efficient solution for Perl processes that require shared data storage without the limitations and complexities of other IPC tools.
The module allows for the consolidation of multiple ramdisks into a single bundle that can hold the required user space based on the parameters used during compilation of the individual kernel. The user and group ownership for the cache can also be specified for the entire bundle.
To begin using Cache::RamDisk, the cache_install function can be called during the application's start phase. This requires specifying a few parameters, such as the base directory for the ramdisks, the size and number of inodes, and the shared memory flag. Specific keys can also be assigned and associated with certain sizes based on application needs.
In the content handler code, the MyApp::Fie package can be imported and used to retrieve data from the cache. The cache is accessed through a new instance of Cache::RamDisk, which is obtained using the specified base directory and cache replacement policy. The get() function is then called, passing in a hash reference that associates a specific key with the desired value. If the value is not found, additional database logic is executed to retrieve the data and store it in the cache for future retrieval.
In a later cgi script, the Cache::RamDisk::Functions package can be imported to check the status of the cache. The key_stat() function can be used to retrieve the number of items for a specific key, such as 'fie'.
Finally, cache_remove() should be called upon application shutdown to remove the cache and any associated data.
Overall, Cache::RamDisk provides a simple and efficient solution for Perl processes that require shared data storage without the limitations and complexities of other IPC tools.
What's New
Version 0.1.6: N/A