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PostgreSQL Connection Pooling: Part 4 – PgBouncer vs. Pgpool-II

Scalegrid

PgBouncer defines one pool per user+database combination. A client benefits from a pooled connection only if it connects to a child which has previously served a connection for this database+user combination. PgBouncer allows limiting connections per-pool, per-database, per-user or per-client. Performance Testing.

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The challenge is on! Community call for creating the fastest number series generator

SQL Performance

Testing different base table cardinalities is just one dimension to try. I’ll present the performance tests that I’ve done with my solution. You can create supporting tables in the user database if needed. Let’s proceed to performance testing. There could be many others. You can add hints as needed.

C++ 114
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Islands T-SQL Challenge

SQL Performance

It’s based on a question from a public database forum. L0 AS ( SELECT 1 AS c. T1 ADD CONSTRAINT PK_T1 PRIMARY KEY CLUSTERED ( grp , ord ) ; In my performance tests, I populated the table with 1,000 groups, between 1,000 and 10,000 rows per group (so 1M to 10M rows), and 5 distinct values.

C++ 136
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The challenge is on! Community call for creating the fastest number series generator

SQL Performance

Testing different base table cardinalities is just one dimension to try. I’ll present the performance tests that I’ve done with my solution. You can create supporting tables in the user database if needed. Let’s proceed to performance testing. There could be many others. You can add hints as needed.

C++ 61
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What Adrian Did Next?—?Part 2?—?Sun Microsystems

Adrian Cockcroft

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. We had specializations in hardware, operating systems, databases, graphics, etc.

Tuning 52
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12 different types of mobile testing with real-life examples

Testsigma

We perform testing from the starting of the flow till the end of the flow. Functional Testing can be easily automated once the features being tested are stable and are not expected to go through a lot of new changes. Performance Testing. Different types of performance tests are-.

Mobile 82
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HammerDB MySQL and MariaDB Best Practice for Performance and Scalability

HammerDB

This post complements the previous best practice guides this time with the focus on MySQL and MariaDB and achieving top levels of performance with the HammerDB MySQL TPC-C test. Similarly for this guide MySQL can be swapped for a mySQL based databases such as MariaDB. SELECT DISTINCT c from sbtest where id between ?