Although I still have some confusing, it's glad to see more attempts. More test results are welcomed! On Sat, Jan 31, 2015 at 12:08 AM, Chris Pacejo <cpacejo@xxxxxxxxxxxxxxxx> wrote: > On Fri, Jan 30, 2015 at 10:52 AM, Haomai Wang <haomaiwang@xxxxxxxxx> wrote: >> It's really a surprise that you impl a MySQL backend. Could I know the >> purpose? Because it may not fit with keyvaluestore I think. > > We've found it to perform better (in isolation) than LevelDB. We were > able to map KeyValueDB's interface to it fairly painlessly, and I > believe correctly. (The only major catch was that we needed to buffer > operations within a transaction and execute them all at once on > submit, to prevent MySQL unnecessarily holding locks for the duration > of long-lived transactions.) > > >> You can simply calculate the sum of submit_transaction_sync consuming >> time, it would be the multiple of the op thread number. > > I will try this, thanks. -- Best Regards, Wheat -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
