1f08c3bdfSopenharmony_ciFile system metadata test program is used to test i-node operations 2f08c3bdfSopenharmony_ciwith heavy workload. Make sure every i-node operation gets the 3f08c3bdfSopenharmony_ciexpected result. This script creates a lot of directory entries with 4f08c3bdfSopenharmony_cik-tree data structure. 5f08c3bdfSopenharmony_ci 6f08c3bdfSopenharmony_cik-tree is a transformation of binary tree, For a binary tree, each father 7f08c3bdfSopenharmony_cinode has 2 children at most; but for a k-tree, it can has k children. We 8f08c3bdfSopenharmony_cineed to test both file and directory, so we do some changes for k-tree 9f08c3bdfSopenharmony_ciconcept here. viz. each father node has k sub directories and k text files. 10f08c3bdfSopenharmony_ci 11f08c3bdfSopenharmony_ciNote, test will caculate approximate disk space firstly based on the test 12f08c3bdfSopenharmony_ciparameters from user. parameter tree_depth should be less than 10; 13f08c3bdfSopenharmony_ciparameter node_number should be less than 20. If user passes a larger 14f08c3bdfSopenharmony_cinumber, it will generate a huge directory hierarchy, which might exhaust 15f08c3bdfSopenharmony_ciyour disk space soon. 16f08c3bdfSopenharmony_ci 17f08c3bdfSopenharmony_ciAs a suggestion, it's better to run the script on a free partition, so 18f08c3bdfSopenharmony_ciyou can recover it easily by formatting disk after test gets finished! 19f08c3bdfSopenharmony_ci 20f08c3bdfSopenharmony_ciHere are the component list of fs-metadata test program. 21f08c3bdfSopenharmony_cik-tree-gen k-tree generator 22f08c3bdfSopenharmony_cik-tree-trav to modify a k-tree with i-nodes operations 23f08c3bdfSopenharmony_cik-thread.sh test thread 24f08c3bdfSopenharmony_cifs-metadata.sh the script to lauch test threads. 25f08c3bdfSopenharmony_ci 26