> > I am using memcached and observing a low memory bandwidth utilization. > Memcached memory bandwidth is around 1GB/s whereas I have seen memory > bandwidth upto 15GB/s for random accesses. I am not sure where exactly > is the bottleneck. Even if I run the memcached on a local machine > (without sending requests over the network), the memory bandwidth > usage by memcached is not more than 1.2 GB/s. > > It will be great if someone can help me why is the memory bandwidth so > low and also if anyone else has also observed it. > > Thanks! > Rohan
Why are you measuring memory bandwidth? If you're trying to diagnose a problem, you're giving us the information from the bottom up. What is your setup and what are the symptoms of you actual problem? get speed isn't high enough? set speed isn't high enough? How are you testing memcached's performance? -Dormando
