Percona

AUGUST 25, 2023

3308 ssl JS > c root@localhost:3308 MySQL localhost:3308 ssl JS > cluster1=dba.getCluster() MySQL localhost:3308 ssl JS > cluster1.status() 3308", "memberRole": "SECONDARY", "memberState": "(MISSING)", "mode": "n/a", "readReplicas": {}, "role": "HA", "shellConnectError": "MySQL Error 2003: Could not open connection to '127.0.0.1:3308':

Traffic 82

Traffic Database Servers C++ 82

HammerDB

JULY 5, 2022

So instead we are going to take a cut down version of the HammerDB TPROC-C driver script and do the same in Python and use the HammerDB infrastructure to measure performance. (We use stored procedures because, as the introductory post shows, using single SQL statements turns our database benchmark into a network test). usr/local/bin/tclsh8.6

Benchmarking 98

Benchmarking Database C++ Virtualization 98

HammerDB

NOVEMBER 30, 2022

Copyright (C) 2003-2022 Steve Shaw. Copyright (C) 2003-2022 Steve Shaw. Vuser 1:Writing timing data to C:/Users/Hdb/AppData/Local/Temp/hdbxtprofile.log Vuser 1:FINISHED SUCCESS ALL VIRTUAL USERS COMPLETE vudestroy success TEST SEQUENCE COMPLETE hammerdb>>> Python Performance and the GIL.

Virtualization 45

Virtualization C++ Lambda Monitoring 45

HammerDB

MAY 10, 2021

dbset db ora dbset bm TPC-C diset connection system_user system diset connection system_password oracle diset connection instance RAZPDB1 diset tpcc tpcc_user tpcc diset tpcc tpcc_pass tpcc diset tpcc total_iterations 10000000 diset tpcc ora_driver timed diset tpcc rampup 2 diset tpcc duration 10 vuset logtotemp 1 vuset vu 2 steprun.

Virtualization 52

Virtualization C++ Database Monitoring 52

HammerDB

JULY 14, 2021

adds full support for MariaDB in both the GUI as shown: And in the CLI as a separate database from MySQL, this post describes a setup and test for MariaDB using the CLI on Linux as an example running the TPROC-C workload. dbset db maria dbset bm TPC-C diset connection maria_socket /tmp/mariadb10234.sock HammerDB v4.2 linux-x86_64.tar.gz

Testing 58

Testing C++ Virtualization Tuning 58

HammerDB

JULY 16, 2021

with the TPROC-C workload on a system with 2 sockets of Intel Xeon 8280L that means we have 28 cores per socket, with 56 physical CPUs and 112 logical CPUs with Hyper-Threading. Plotting these data points enables us to understand the scalability of the database software being tested on that system. and MySQL 8.0.25 and MySQL 8.0.25

Virtualization 58

Virtualization Performance C++ Database 58

HammerDB

NOVEMBER 23, 2021

dbset db pg dbset bm TPC-C diset tpcc pg_count_ware 20 diset tpcc pg_num_vu 4 diset tpcc pg_superuser postgres diset tpcc pg_superuserpass postgres buildschema. Copyright (C) 2003-2021 Steve Shaw Type "help" for a list of commands The xml is well-formed, applying configuration Initialized new SQLite on-disk database /tmp/hammer.DB

Virtualization 71

Virtualization Benchmarking C++ Database 71

HammerDB

JULY 8, 2019

Copyright (C) 2003-2019 Steve Shaw Type "help" for a list of commands The xml is well-formed, applying configuration SETTING CONFIGURATION Database set to Oracle. /bin/bash echo "BASH SCRIPT BEFORE BUILD."./hammerdbcli hammerdbcli auto buildcli.tcl echo "BASH SCRIPT AFTER BUILD.". When run the output looks as follows: /build.sh

C++ 40

C++ Virtualization Database Design 40

HammerDB

MARCH 27, 2023

Copyright (C) 2003-2023 Steve Shaw Type "help" for a list of commands Initialized SQLite on-disk database /home/hammerdb/HammerDB-4.7/TMP/hammer.DB Copy Code Copied Use a different Browser. BUILD HAMMERDB SCHEMA +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- HammerDB CLI v4.7. HAMMERDB RESULT HammerDB CLI v4.7 TMP/hammer.DB

Benchmarking 52

Benchmarking Testing Database C++ 52

Highly Scalable

MARCH 10, 2015

Recall the basic equation for enterprise profit: where Q is quantity sold, P is price, V denotes variable costs, and C denotes fixed costs. Heckerman, and C. DG12] How Companies Learn Your Secrets, C. Kleinberg, C. MA08] Introduction to Information Retrieval, C. Prairie, 2003. Rodriguez, C.

Retail 152

Retail C++ Analytics Metrics 152

HammerDB

JULY 17, 2019

After modifying the graphical options we can then update and test the TPC-C schema build and tests in mariadb/mariaoltp.tcl. However this now gives us the opportunity to make the changes we want for MariaDB only such as adding PL/SQL compatibility for the TPC-C workload or changes to support column stores for TPC-H.

Database 40

Database C++ Testing Metrics 40

HammerDB

OCTOBER 12, 2018

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. SELECT DISTINCT c from sbtest where id between ? order by c. SELECT c from sbtest where id=? Copyright (C) 2003-2018 Steve Shaw.

Best Practices 40

Best Practices Scalability Performance C++ 40

HammerDB

MAY 5, 2019

Fortunately the HammerDB TPC-C/OLTP workload intentionally has a great deal of contention between threads and is therefore ideal for testing spin-locks. Copyright (C) 2003-2018 Steve Shaw. HammerDB-3.1$./hammerdbcli. hammerdbcli. HammerDB CLI v3.1. Type "help" for a list of commands. hammerdb>source innodbtest1.tcl.

Testing 49

Testing Tuning Latency Storage 49

HammerDB

NOVEMBER 30, 2018

TCL was designed as a language to be closely tied with C/C++ and at this lower level there is the compiled TCL (tclsh) or TCL/TK (wish) interpreter and supporting libraries. The include directory contains the platform specific C header files for this purpose. These bin and lib directories are not included with the source code.

Architecture 40

Architecture Virtualization Open Source C++ 40

HammerDB

JULY 8, 2019

Copyright (C) 2003-2019 Steve Shaw Type "help" for a list of commands The xml is well-formed, applying configuration Initialized new SQLite in-memory database Starting HammerDB Web Service on port 8080 Listening for HTTP requests on TCP port 8080. see the documentation for setting the port). . $./hammerdbws

Virtualization 40

Virtualization Benchmarking C++ Database 40

HammerDB

OCTOBER 8, 2018

This post gives a HOWTO guide on system configuration for achieving top levels of performance with the HammerDB PostgreSQL TPC-C test. D isabling all C-states or Idle states is likely to reduce overall performance by reducing the available turbo frequency. Copyright (C) 2003-2018 Steve Shaw. hammerdbcli.

Best Practices 40

Best Practices Scalability Performance Hardware 40

Adrian Cockcroft

JUNE 21, 2022

I was mostly coding in C, tuning FORTRAN, and when I needed to do a lot of data analysis of benchmark results used the S-PLUS statistics language, that is the predecessor to R. I also applied Six Sigma to capacity planning and presented this at a conference in 2003. He had it up and running on Wednesday. that a lot of people used.

Tuning 52

Tuning Benchmarking Engineering C++ 52

SQL Server According to Bob

JANUARY 11, 2020

Note: ​​ Pages that are nev er modified ( never​​ dirtied) remain in the clean state until they are dis c arded at which time the checksum is validated for the constant page. Then ​​ write C ​​ obtains ​​ 01 ​​ and so on. c om/sql / AlwaysOn ).

Servers 40

Servers Cache Database Media 40