In my application, I am using the dpdk hash table as below.

1. calculate the hash value.

2. using this signature add the key and data into  a table.

3. lock is used in the 2nd call (add).

Below is the code sniffer for the same.

==================================================================
     hash_sig_t sig = rte_hash_hash(hash_tablele, (void *) &new_key);

     pthread_mutex_lock(&lock);
      int32_t ret = rte_hash_add_key_with_hash_data(hash_table,
                          (void *)&new_key,
                           sig,
                           info);
 

My application is having a lot of threads and when run with heavy load , I am getting a lot of insertion failure, i felt the reason could be calculating and adding the has value in 2 api's as opposed to rte_hash_add() that is safe under a lock..

Please let me know your thoughts.

Thank you,

Venkatesh.