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Meltdown Fix: 40% performance regression for MyISAM; recommend switch to InnoDB

572

Edwin Desouza

02/13/2018 10:19AM

High memory & CPU usage after upgrading to 5.7.20

2,109

Abid Malik

01/30/2018 11:55PM

Re: High memory & CPU usage after upgrading to 5.7.20

1,140

Øystein Grøvlen

01/31/2018 02:01AM

High memory usage on mysql 5.6.36-log on linux server

2,861

Priya Pawar

01/25/2018 04:55AM

Re: High memory usage on mysql 5.6.36-log on linux server

891

Peter Brawley

01/25/2018 09:02AM

Re: High memory usage on mysql 5.6.36-log on linux server

743

Priya Pawar

01/28/2018 09:34PM

Re: High memory usage on mysql 5.6.36-log on linux server

732

Priya Pawar

01/28/2018 10:05PM

Re: High memory usage on mysql 5.6.36-log on linux server

984

Priya Pawar

01/28/2018 10:07PM

Re: High memory usage on mysql 5.6.36-log on linux server

701

Priya Pawar

01/28/2018 10:09PM

Re: High memory usage on mysql 5.6.36-log on linux server

852

Priya Pawar

01/28/2018 10:10PM

Re: High memory usage on mysql 5.6.36-log on linux server

832

Peter Brawley

01/28/2018 11:43PM

Re: High memory usage on mysql 5.6.36-log on linux server

823

Priya Pawar

01/29/2018 07:50AM

Re: High memory usage on mysql 5.6.36-log on linux server

748

Peter Brawley

01/29/2018 10:38AM

MyTOP - Key Efficiency 50.0% - How to improve it?

1,821

Mahesh Kumar

01/19/2018 10:21PM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

968

Peter Brawley

01/20/2018 01:22AM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

1,106

Mahesh Kumar

01/21/2018 02:55AM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

1,194

Mahesh Kumar

01/21/2018 03:21AM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

850

Peter Brawley

01/21/2018 11:08AM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

3,640

Mahesh Kumar

01/21/2018 08:02PM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

994

Peter Brawley

01/21/2018 10:07PM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

789

Mahesh Kumar

01/23/2018 01:13AM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

762

Peter Brawley

01/23/2018 09:22AM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

738

Mahesh Kumar

01/23/2018 12:29PM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

685

Peter Brawley

01/23/2018 12:43PM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

677

Mahesh Kumar

01/23/2018 12:50PM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

773

Peter Brawley

01/23/2018 02:30PM

Re: MyTOP - Key Efficiency 50.0% - How to improve it?

918

Mahesh Kumar

01/21/2018 08:05PM

Query slow on Windows, fast on Ubuntu

4,616

tt trgfgdfg

01/22/2018 09:24AM

Re: Query slow on Windows, fast on Ubuntu

2,125

Peter Brawley

01/22/2018 11:09AM

Re: Query slow on Windows, fast on Ubuntu

1,969

Øystein Grøvlen

01/23/2018 01:42AM

Re: Query slow on Windows, fast on Ubuntu

1,784

Thomas Thomas

01/23/2018 03:13AM

Re: Query slow on Windows, fast on Ubuntu

1,419

Øystein Grøvlen

01/23/2018 03:31AM

Re: Query slow on Windows, fast on Ubuntu

1,394

Thomas Thomas

01/23/2018 03:50AM

Re: Query slow on Windows, fast on Ubuntu

1,310

Øystein Grøvlen

01/23/2018 07:42AM

Re: Query slow on Windows, fast on Ubuntu

1,339

Thomas Thomas

01/23/2018 08:33AM

Re: Query slow on Windows, fast on Ubuntu

1,487

Øystein Grøvlen

01/23/2018 09:11AM

index not being pick up

1,158

r r

01/15/2018 11:57PM

Re: index not being pick up

464

Peter Brawley

01/16/2018 12:19AM

Re: index not being pick up

413

Raf Mahn

01/16/2018 04:39PM

Re: index not being pick up

440

01/16/2018 07:49PM

Re: index not being pick up

454

Raf Mahn

01/17/2018 12:26AM

Re: index not being pick up

445

01/17/2018 01:07AM

Re: index not being pick up

669

Raf Mahn

01/17/2018 01:19AM

Re: index not being pick up

486

Peter Brawley

01/17/2018 12:41PM

Re: index not being pick up

439

Øystein Grøvlen

01/19/2018 07:26AM

Re: index not being pick up

455

Raf Mahn

01/21/2018 04:31PM

Re: index not being pick up

419

Peter Brawley

01/21/2018 05:41PM

Re: index not being pick up

498

Øystein Grøvlen

01/22/2018 03:00AM

innodb_sync_array_size

1,208

01/05/2018 05:37AM

mysql oltp test， the result no stable ?

795

jared ZHU

01/01/2018 08:53PM

Slow query in mysql 5.7.20

856

12/17/2017 07:42AM

Re: Slow query in mysql 5.7.20

431

Peter Brawley

12/17/2017 09:51AM

Re: Slow query in mysql 5.7.20

540

12/17/2017 11:55AM

Re: Slow query in mysql 5.7.20

465

Peter Brawley

12/17/2017 01:36PM

Re: Slow query in mysql 5.7.20

424

12/18/2017 12:33AM

Re: Slow query in mysql 5.7.20

419

Peter Brawley

12/18/2017 10:09AM

Re: Slow query in mysql 5.7.20

464

12/17/2017 11:02AM

Re: Slow query in mysql 5.7.20

709

Øystein Grøvlen

12/18/2017 01:54AM

Query causing CPU Spike to 100% after MYSQL upgrade

1,357

Duncan Muturi

12/11/2017 02:16PM

Re: Query causing CPU Spike to 100% after MYSQL upgrade

498

Peter Brawley

12/11/2017 09:21PM

Re: Query causing CPU Spike to 100% after MYSQL upgrade

490

Irfan Khan

12/12/2017 09:13AM

Re: Query causing CPU Spike to 100% after MYSQL upgrade

406

Peter Brawley

12/12/2017 02:52PM

Re: Query causing CPU Spike to 100% after MYSQL upgrade

453

Øystein Grøvlen

12/13/2017 12:29PM

optimize tmp_table_size and max_heap_table_size

1,316

12/13/2017 04:06AM

Re: optimize tmp_table_size and max_heap_table_size

691

Peter Brawley

12/13/2017 10:44AM

MySQL 8.0: Query Optimizer Takes Data Buffering into Account

467

Edwin Desouza

12/07/2017 11:21AM

This topic has been moved.: Memory required to Install MySql 5.6 DB on linux machine

11

Srinivas Gandreti

11/22/2017 11:44AM

MySQL 8.0: Optimization to skip index dives with FORCE INDEX.

531

Edwin Desouza

11/17/2017 09:50AM

Find free appointments faster

3,488

Bingo Bongo

11/08/2017 12:32AM

Re: Find free appointments faster

632

Bingo Bongo

11/08/2017 12:48AM

Re: Find free appointments faster

662

Øystein Grøvlen

11/08/2017 04:57AM

Re: Find free appointments faster

666

Bingo Bongo

11/08/2017 10:43PM

Re: Find free appointments faster

658

Peter Brawley

11/08/2017 11:31PM

Re: Find free appointments faster

582

Bingo Bongo

11/09/2017 09:27AM

Re: Find free appointments faster

601

Peter Brawley

11/14/2017 10:19AM

Re: Find free appointments faster

595

Øystein Grøvlen

11/14/2017 09:31AM

Re: Find free appointments faster

666

Bingo Bongo

11/08/2017 11:22PM

MySQL 8.0: Contention-Aware Transaction Scheduling Arriving in InnoDB to Boost Performance

782

Edwin Desouza

11/05/2017 09:57PM

mysql-commercial-benchmark

611

Christian Molecki

10/30/2017 05:07AM

Re: mysql-commercial-benchmark

419

Terje Røsten

10/30/2017 06:30AM

MYSQL 5.5 Performance issue

807

Suganya Anbumani

10/13/2017 12:56PM

Re: MYSQL 5.5 Performance issue

436

Øystein Grøvlen

10/19/2017 03:21AM

MySQL 8.0 RC: Performance Benchmarks: 2.1Mil QPS

673

Edwin Desouza

10/04/2017 12:04AM

MySQL 8.0: Million Tables

620

Edwin Desouza

10/01/2017 10:25PM

High memory usage on mysql 5.7.18 running on ubuntu server 16.04

2,496

Peter Bukaowski

06/15/2017 01:40AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

916

Peter Brawley

06/15/2017 11:15AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

1,037

Peter Brawley

06/15/2017 12:52PM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

3,108

Peter Bukaowski

06/16/2017 01:03AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

925

Peter Brawley

06/19/2017 02:12AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

825

Peter Bukaowski

06/19/2017 06:03AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

771

Peter Brawley

06/19/2017 10:25AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

819

Peter Bukaowski

06/20/2017 03:52AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

962

Peter Brawley

06/20/2017 09:07AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

883

Øystein Grøvlen

06/22/2017 01:59AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

716

Peter Bukaowski

07/31/2017 04:09AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

708

Øystein Grøvlen

08/22/2017 05:48AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

748

Peter Bukaowski

08/24/2017 05:44AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

748

Øystein Grøvlen

08/25/2017 05:00AM

Re: High memory usage on mysql 5.7.18 running on ubuntu server 16.04

879

Peter Bukaowski

09/28/2017 02:15AM

mysql for centos 7 very slow

2,862

Bill Clinton

09/24/2017 05:38PM

Re: mysql for centos 7 very slow

1,105

Peter Brawley

09/24/2017 07:21PM

MySQL 5.7 performance issue with 300 GB Innodb

3,055

Veerendra Kumars

09/13/2017 03:52AM

Re: MySQL 5.7 performance issue with 300 GB Innodb

770

Peter Brawley

09/13/2017 11:25AM

Re: MySQL 5.7 performance issue with 300 GB Innodb

683

Veerendra Kumars

09/13/2017 10:35PM

Re: MySQL 5.7 performance issue with 300 GB Innodb

945

Veerendra Kumars

09/13/2017 10:53PM

Re: MySQL 5.7 performance issue with 300 GB Innodb

685

Veerendra Kumars

09/13/2017 11:02PM

Re: MySQL 5.7 performance issue with 300 GB Innodb

668

Øystein Grøvlen

09/14/2017 01:58AM

Re: MySQL 5.7 performance issue with 300 GB Innodb

676

Peter Brawley

09/14/2017 11:03AM

Database is slow

1,052

Jaya Karthik Reddy Karri

08/11/2017 08:31AM

High memory usage on mysql 5.7.18

5,236

Zubair Suri

07/21/2017 08:05AM

Re: High memory usage on mysql 5.7.18

1,644

Peter Brawley

07/21/2017 06:16PM

Re: High memory usage on mysql 5.7.18

1,407

Zubair Suri

07/24/2017 04:51PM

Re: High memory usage on mysql 5.7.18

1,154

Peter Brawley

07/24/2017 05:55PM

Re: High memory usage on mysql 5.7.18

1,539

Zubair Suri

07/24/2017 09:32PM

Re: High memory usage on mysql 5.7.18

1,654

Peter Brawley

07/31/2017 08:46AM

Re: High memory usage on mysql 5.7.18

1,188

Peter Bukaowski

07/31/2017 04:03AM

Re: High memory usage on mysql 5.7.18

1,744

08/06/2017 09:57AM

Re: High memory usage on mysql 5.7.18

1,095

Peter Brawley

08/06/2017 10:01AM

MySQL 8.0.2 More Flexible InnoDB Undo Tablespace Management

785

Edwin Desouza

07/31/2017 08:40AM

Join by date range unacceptably slow

1,102

Ed Trembicki-Guy

05/15/2017 02:48PM

Re: Join by date range unacceptably slow

657

Peter Brawley

05/15/2017 05:55PM

Re: Join by date range unacceptably slow

2,148

Øystein Grøvlen

05/16/2017 01:49AM

Re: Join by date range unacceptably slow

865

Ed Trembicki-Guy

05/18/2017 07:32AM

Re: Join by date range unacceptably slow

714

Øystein Grøvlen

05/19/2017 03:15AM

Re: Join by date range unacceptably slow

801

Ed Trembicki-Guy

07/13/2017 10:07AM

Re: Join by date range unacceptably slow

605

Øystein Grøvlen

07/19/2017 05:12AM

Oder by DESC on Indexed Column Extremely Slow

765

Nithya Kodithuwakku Ranadeerage

06/08/2017 11:34PM

Re: Oder by DESC on Indexed Column Extremely Slow

414

Øystein Grøvlen

06/13/2017 05:20AM

Problem Using mysqlslap

1,037

Brian Keith

05/22/2017 03:10AM

Re: Problem Using mysqlslap

535

Peter Brawley

05/22/2017 09:16AM

Best performance stucture

774

Romain MARCHAND

05/18/2017 02:37AM

"Sending Data" is taking time post migration from 5.1 to 5.6

1,184

Aldrin Davis

03/10/2017 02:41AM

Re: "Sending Data" is taking time post migration from 5.1 to 5.6

697

Peter Brawley

03/10/2017 12:47PM

Re: "Sending Data" is taking time post migration from 5.1 to 5.6

630

SAIKIRAN CHEVITI

03/14/2017 06:40AM

Re: "Sending Data" is taking time post migration from 5.1 to 5.6

689

Peter Brawley

03/14/2017 09:42AM

Re: "Sending Data" is taking time post migration from 5.1 to 5.6

1,546

SAIKIRAN CHEVITI

03/15/2017 08:50AM

Re: "Sending Data" is taking time post migration from 5.1 to 5.6

831

Peter Brawley

03/15/2017 12:43PM

Re: "Sending Data" is taking time post migration from 5.1 to 5.6

825

SAIKIRAN CHEVITI

03/16/2017 02:32AM

Re: "Sending Data" is taking time post migration from 5.1 to 5.6

712

Peter Brawley

03/16/2017 05:52AM

Re: "Sending Data" is taking time post migration from 5.1 to 5.6

683

SAI KIRAN

03/17/2017 12:08AM

Re: "Sending Data" is taking time post migration from 5.1 to 5.6

730

SAI KIRAN

05/17/2017 01:48AM

Each morning some SQLs are very slow

988

lisheng1 zhang1

05/08/2017 03:43PM

Re: Each morning some SQLs are very slow

511

Peter Brawley

05/08/2017 06:30PM

Re: Each morning some SQLs are very slow

596

Øystein Grøvlen

05/09/2017 12:13AM

Re: Each morning some SQLs are very slow

510

lisheng1 zhang1

05/09/2017 02:17PM

Re: Each morning some SQLs are very slow

558

Øystein Grøvlen

05/10/2017 08:10AM

Re: Each morning some SQLs are very slow

464

lisheng1 zhang1

05/10/2017 02:40PM

mysql inserting performance is slow

1,161

jief llefe

05/03/2017 09:08PM

Re: mysql inserting performance is slow

668

jief llefe

05/03/2017 09:20PM

Re: mysql inserting performance is slow

594

Øystein Grøvlen

05/08/2017 04:41AM

Re: mysql inserting performance is slow

553

05/05/2017 12:05AM

long running, can't get to use index

993

Eric Peterson

03/24/2017 10:10AM

Re: long running, can't get to use index

551

Peter Brawley

03/24/2017 10:32AM

Re: long running, can't get to use index

543

Eric Peterson

03/24/2017 10:41AM

Re: long running, can't get to use index

516

Peter Brawley

03/27/2017 10:39AM

Re: long running, can't get to use index

563

Øystein Grøvlen

03/27/2017 02:04AM

Re: long running, can't get to use index

618

Eric Peterson

04/03/2017 10:34AM

Re: long running, can't get to use index

545

Peter Brawley

04/03/2017 12:08PM

Re: long running, can't get to use index

507

05/06/2017 07:36PM

MYSQL Update performance

1,412

sree iyer

04/24/2017 02:11PM

Re: MYSQL Update performance

708

Peter Brawley

04/24/2017 04:05PM

Re: MYSQL Update performance

842

sree iyer

05/01/2017 08:50AM

Re: MYSQL Update performance

750

Peter Brawley

05/01/2017 10:18AM

Re: MYSQL Update performance

794

sree iyer

05/01/2017 10:45AM

Re: MYSQL Update performance

734

Peter Brawley

05/01/2017 12:58PM

Re: MYSQL Update performance

1,459

sree iyer

05/01/2017 01:11PM

Re: MYSQL Update performance

656

Peter Brawley

05/01/2017 01:55PM

How to Analyze and Tune MySQL Queries for Better Performance

759

Edwin Desouza

04/27/2017 11:39AM

Performance Schema estimates never change

1,217

Anthony Stump

03/30/2017 10:15AM

Re: Performance Schema estimates never change

729

Øystein Grøvlen

04/03/2017 03:01AM

Horrible MySql performance?

1,066

Patrick Hogan

03/23/2017 10:39PM

Re: Horrible MySql performance?

526

Peter Brawley

03/24/2017 12:52AM

Re: Horrible MySql performance?

566

Øystein Grøvlen

03/24/2017 01:18AM

Re: Horrible MySql performance?

622

Patrick Hogan

03/24/2017 09:18AM

Re: Horrible MySql performance?

519

Peter Brawley

03/24/2017 09:21AM

performance_schema.events_statements_* not populating

1,121

Ryan Streb

03/14/2017 06:23PM

Re: performance_schema.events_statements_* not populating

690

Øystein Grøvlen

03/15/2017 02:00AM

Re: performance_schema.events_statements_* not populating

658

Ryan Streb

03/15/2017 01:16PM

Re: performance_schema.events_statements_* not populating

597

Ryan Streb

03/17/2017 02:26PM

Re: performance_schema.events_statements_* not populating

679

Ryan Streb

03/15/2017 01:38PM

Big performance difference - can't find the difference (2 machines) ?

1,193

Oliver Greil

03/15/2017 04:17AM

Re: Big performance difference - can't find the difference (2 machines) ?

650

03/15/2017 11:27PM

Re: Big performance difference - can't find the difference (2 machines) ?

610

Oliver G.

03/16/2017 07:05AM

Re: Big performance difference - can't find the difference (2 machines) ?

547

Peter Brawley

03/17/2017 07:26AM

Single Database Vs Multiple Databases

2,740

Atul Dixit

02/23/2017 12:44PM

Re: Single Database Vs Multiple Databases

1,070

Øystein Grøvlen

03/01/2017 07:22AM

MySQL Performance Tuning: Optimizer Hints

898

Edwin Desouza

02/04/2017 09:08PM

How to log slow DMLs

1,138

Susan Lam

01/10/2017 04:01PM

Re: How to log slow DMLs

528

Peter Brawley

01/10/2017 04:45PM

Re: How to log slow DMLs

592

Susan Lam

01/10/2017 06:54PM

Improve performance when Insert into ... select ...

1,643

Lyu Joey

12/15/2016 03:59AM

Re: Improve performance when Insert into ... select ...

2,221

Peter Brawley

12/15/2016 10:00AM

Re: Improve performance when Insert into ... select ...

1,186

Lyu Joey

12/15/2016 07:34PM

Re: Improve performance when Insert into ... select ...

1,160

Lyu Joey

12/15/2016 08:08PM

Re: Improve performance when Insert into ... select ...

1,300

Lyu Joey

12/15/2016 08:18PM

Re: Improve performance when Insert into ... select ...

1,074

Peter Brawley

12/15/2016 09:16PM

Recent Upgrade from MySQL 5.1 to 5.5

1,916

Alex Titley

12/07/2016 10:22AM

Re: Recent Upgrade from MySQL 5.1 to 5.5

803

Edwin Desouza

12/07/2016 08:47PM

Re: Recent Upgrade from MySQL 5.1 to 5.5

743

Alex Titley

12/08/2016 05:07AM

Re: Recent Upgrade from MySQL 5.1 to 5.5

709

Rick James

12/12/2016 02:08PM

Re: Recent Upgrade from MySQL 5.1 to 5.5

852

Alex Titley

12/14/2016 07:27AM

Re: Recent Upgrade from MySQL 5.1 to 5.5

735

Peter Brawley

12/14/2016 08:56AM

Select Query and Two Tables

1,070

Steve Royle

12/05/2016 09:43AM

Re: Select Query and Two Tables

1,072

Peter Brawley

12/05/2016 11:01AM

Re: Select Query and Two Tables

708

Steve Royle

12/07/2016 05:05AM

Performance issues afre upgrading to 5.7

1,926

Alexandru Badulescu

11/24/2016 08:48AM

Re: Performance issues afre upgrading to 5.7

1,023

Peter Brawley

11/24/2016 11:32AM

Re: Performance issues afre upgrading to 5.7

975

Øystein Grøvlen

11/25/2016 07:28AM

Re: Performance issues afre upgrading to 5.7

1,170

Øystein Grøvlen

11/25/2016 06:16AM

Re: Performance issues afre upgrading to 5.7

832

Alexandru Badulescu

11/25/2016 06:59AM

Re: Performance issues afre upgrading to 5.7

959

Øystein Grøvlen

11/25/2016 07:53AM

Re: Performance issues afre upgrading to 5.7

905

Rick James

11/25/2016 08:18PM

why select @@session.tx_read_only take long time

3,252

h h

10/31/2016 01:53AM

Re: why select @@session.tx_read_only take long time

2,854

Rick James

11/02/2016 11:43AM

Query optimizatoin

1,115

Syed Anjum

10/26/2016 03:32AM

Re: Query optimizatoin

690

Øystein Grøvlen

10/26/2016 04:41AM

Writing sample data very fast from (TwinCAT) PLC to a MySQL database?

1,611

sdgbfdsg fdhgfdhds

10/18/2016 08:14AM

Re: Writing sample data very fast from (TwinCAT) PLC to a MySQL database?

1,534

Rick James

10/23/2016 12:08AM

This topic has been moved.: MyTOP - Key Efficiency 50.0% - How to improve it?

0

Mahesh Kumar

01/20/2018 01:22AM

This topic has been moved.: optimize tmp_table_size and max_heap_table_size

0

12/14/2017 11:25AM

This topic has been moved.: mysql for centos 7 very slow

0

Bill Clinton

09/24/2017 07:30PM

This topic has been moved.: MySQL 5.7 performance issue with 300 GB Innodb

0

Veerendra Kumars

09/13/2017 11:12AM

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