On Thu, Mar 3, 2016 at 11:50 PM, Robert Haas <robertmhaas@gmail.com> wrote: >What if you apply both this and Amit's clog control log patch(es)? Maybe the combination of the two helps substantially more than either >one alone.
I did the above tests along with Amit's clog patch. Machine :8 socket, 64 core. 128 hyperthread.
clients
BASE
ONLY CLOG CHANGES
% Increase
ONLY SAVE SNAPSHOT
% Increase
CLOG CHANGES + SAVE SNAPSHOT
% Increase
64
29247.658034
30855.728835
5.4981181711
29254.532186
0.0235032562
32691.832776
11.7758992463
88
31214.305391
33313.393095
6.7247618606
32109.248609
2.8670931702
35433.655203
13.5173592978
128
30896.673949
34015.362152
10.0939285832
***
***
34947.296355
13.110221549
256
27183.780921
31192.895437
14.7481857938
***
***
32873.782735
20.9316056164
With clog changes, perf of caching the snapshot patch improves.
