Re: PHP insert performance

13 Jul 2020


      hi ????
What is the link to the public accessible script.

On 13/07/2020 08:52, - - wrote:
...
hi Martin,
   monetdb version: 11.37.7-20200529
   sql: generic insert — INSERT INTO table(id,v1,v2,v3,v4) VALUES (…);
   test: same environment for both servers: vmbox 8gb, 4 cores, only one server is running on tests, no load of the host server
   php 7.4.5,  SQLAnyhwere pdo extension;  php-monetdb-1.0-1.el8.noarch.rpm
   script: same for both tests except connection, measured only loop execution,   the script uses «random» functions to
   generate  data for insert
function str_random($length = 3200)
{
     $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
     return substr(str_shuffle(str_repeat($pool, $length)), 0, $length);
}
   the execution time ratio for all tests was almost the same. each test was done on «clean» server.
   one of the test:
   monetdb:  Work: 796.90835905075 seconds
   SQLA:      Work: 382.80270600319 seconds
   /alex
Понедельник, 13 июля 2020, 8:44 +03:00 от Martin Kersten :
    Hi 
There can be many reasons. Ranging from version used, SQL difference, test running, en PHP? API.
    Based on the information provided this can not be judged.
regards, Martin
On 13/07/2020 02:13, - - wrote:
     > I have run the series of INSERT tests in PHP for monetdb and SAP SQLAnywhere.  The tests show: performance of the monetdb on INSERT operations is almost twice slower against SQLA with the equal conditions (DDL, index, data, autocommit, 10K records),
     > monetdb is in in-memory mode . What can be a reason?
     > p.s. It is not benchmark, I just used the SQLA test server already running.
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