Setting EF_BUZZ_USEC sets the following options:
Note: If EF_POLL_USEC is set to value N, then EF_BUZZ_USEC is also set to N only if N ≤ 100, If N > 100 then EF_BUZZ_USEC will be set to 100. This is deliberate as spinning for too long on internal locks may adversely affect performance. However the user can explicitly set EF_BUZZ_USEC value. For example
EF_POLL_USEC=10000 export EF_BUZZ_USEC=1000.