added generalized latency
tweaks for bench tool
fix time out and latency report bug
fix timeout and latency report bug
more tweaks for benchmark tool
added throughput limit
remove unneeded timeouts
remove defer for hot spots
fixed minor bug
fixed minor concurrency bug
use LIFO pool to optimize for CPU local cache
use atomic ops instead of locks
use atomic aps instead of locks
direct copy of string instead of casting to []byte to avoid allocation
avoid casting strings to []byte, use references in range instead of named vars
avoid casting string to []byte\nuse references instead of named vars in range
removed commented code
minor tweaks for benchmark tool
removed synchronization for nodeArray
fix minor stats bug