Re: [HACKERS] Proposal for CSN based snapshots

2017-12-14 Thread Alexander Kuzmenkov
El 08/12/17 a las 14:59, Alexander Korotkov escribió: These results look promising for me.  Could you try benchmarking using more workloads including read-only and mixed mostly-read workloads? You can try same benchmarks I used in my talk about CSN in pgconf.eu [1] slides 19-2

Re: [HACKERS] Proposal for CSN based snapshots

2017-12-08 Thread Alexander Korotkov
On Mon, Dec 4, 2017 at 6:07 PM, Alexander Kuzmenkov < a.kuzmen...@postgrespro.ru> wrote: > Performance on pgbench tpcb with subtransactions is now slightly better > than master. See the picture 'savepoints2'. This was achieved by removing > unnecessary exclusive locking on CSNLogControlLock in Sub