You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Copy file name to clipboardexpand all lines: _posts/2017/2017-06-29-performance-comparison-of-postgresql-connectors-in-matlab-part-I.md
+3-2
Original file line number
Diff line number
Diff line change
@@ -34,7 +34,7 @@ The first solution that at first glance seems to be rather obvious is to use **M
34
34
JDBC connection. But it turns out this "standard" solution has some latent restrictions (concerning both performance, volumes and type of
35
35
data to be processed) that do not allow to use the toolbox in our projects. And the goal of this paper is to reveal these
36
36
restrictions and to compare it to another solution. The latter one, namely, [**PgMex library**](http://pgmex.alliedtesting.com), was developed by our team out of the necessity to work with big data of very diverse types (including *arrays*). [**PgMex library**](http://pgmex.alliedtesting.com) provides
37
-
a connection to **PostgreSQL** via LibPQ library.
37
+
a connection to **PostgreSQL** via libpq library.
38
38
39
39
This part of the paper covers only data insertion performance, data retrieval will be discussed in Part II of the paper.
40
40
@@ -134,7 +134,8 @@ pgmexec('batchParamExec',dbConn,'insert into mytable values ($1,$2)','%int4 %nam
134
134
In the next subsections below we compare the methods **datainsert** (and also **fastinsert** for the simplest experiments) with
135
135
[**batchParamExec**](http://pgmex.alliedtesting.com/#batchparamexec). In this subsection we give some information on conditions
136
136
for these experiments. All the testing was done on a box with Intel Core i7-5820K 3.30GHz processor, Asus X99-A motherboard, 64Gb DDR4 RAM
137
-
running on 64-bit Windows 10. PostgreSQL 9.6 data storage was OCZ 256Gb Vector 280 SSD.
137
+
running Matlab 2016b on 64-bit Windows 10. PostgreSQL 9.6 data storage was OCZ 256Gb Vector 280 SSD.
138
+
We used [**PgMex library**](http://pgmex.alliedtesting.com) v1.1.0.
138
139
139
140
A couple of words on data used for experiments. This data is based on real daily prices of stocks on some exchanges, so we do not deal below
140
141
with some toy examples as above. Instead, we try to approximate a real-life usage as much as possible. The fields are as follows (the types pointed in
Copy file name to clipboardexpand all lines: about.md
+1-1
Original file line number
Diff line number
Diff line change
@@ -18,7 +18,7 @@ permalink: /about/
18
18
<pclass="short-bio">
19
19
Peter V. Gagarinov is a financial model developer and a consultant specializing in financial market modeling, statistical forecasting and algorithmic trading. He supervised and participated
20
20
in a dozen of financial R&D projects as quantitative modeling team-lead/system architect and later - as a head of R&D department at Allied Testing Ltd.
21
-
He is a co-author and maintainer of Ellipsoidal Toolbox (ET) for Matlab - a popular Ellipsoidal Calculus modeling framework designed at Moscow State University, System Analysis Department of Applied Mathematics and Computer Science Faculty where he served as a research assosiate.<br>
21
+
He is a co-author and maintainer of Ellipsoidal Toolbox (ET) for Matlab - a popular Ellipsoidal Calculus modeling framework designed at Moscow State University, System Analysis Department of Applied Mathematics and Computer Science Faculty where he served as a research associate.<br>
0 commit comments