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This article introduces the knowledge of "how to use mysql performance indicator tps/qps". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1 tps/qps

Tps: Transactions Per Second, transactions per second

Qps: number of Queries Per Second queries per second

Method 1: calculate tps based on com_commit and com_rollback, and calculate qps based on questions.

TPS = Com_commit/s + Com_rollback/s

Among them

Com_commit / s = mysqladmin extended-status-- relative-- sleep=1 | grep-w Com_commit

Com_rollback/s = mysqladmin extended-status-- relative-- sleep=1 | grep-w Com_rollback

QPS refers to the total amount of Query executed by MySQL Server per second, which is approximately expressed by the change in the status value of Questions (number of customer queries) per second, so there are:

QPS = mysqladmin extended-status-- relative-- sleep=1 | grep-w Questions

-another way to evaluate qps tps by adding uptime

Calculate qps based on questions, calculate tps based on com_commit com_rollback

Questions = show global status like 'questions'

Uptime = show global status like 'uptime'

Qps=questions/uptime

Com_commit = show global status like 'com_commit'

Com_rollback = show global status like 'com_rollback'

Uptime = show global status like 'uptime'

Tps= (com_commit + com_rollback) / uptime

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