Hello, I'm testing BK performance when appending 100K entries synchronously from 1 thread (using one ledger). The performance I get is 250 entries/s.
What performance should I expect ? My setup: Ledger: Ensemble size: 3 Quorum size: 2 1 client machine and 3 server machines. Network: Each machine with bonding: 4 x 1000Mbps on each machine manually tested between client and server: 400MB/s Disk: I tested two configurations: dedicated disks with ext3 (different for zookeeper, journal, data, index, log) dedicated ramfs partitions (different for zookeeper, journal, data, index, log) In both configurations the performance is the same: 250 entries / s (25MB / s). I confirmed this with measured network bandwidth: - on client 50 MB/s - on server 17 MB/s I run java with profiler enabled on BK client and BK server but didn't find anything unexpected (but I don't know bookkeeper internals). I tested it with two BookKeeper versions: - 4.3.0 - 4.2.2 The result were the same with both BookKeeper versions. What should be changed/checked to get better performance ? Kind regards, Maciej
