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. -- 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
