|
このページは大阪弁化フィルタによって翻訳生成されたんですわ。 |
Mysql performance
I would like to ask you about following parameters which should be low or high for best performance:
please tell me 1) Thread cache size --- should be low or high for best mysql performance 2) thread cache hit rate -- should be low or high for best mysql performance 3) thread created --- should be low or high for best mysql performance 4) table lock --- should be low or high for best mysql performance 5) table lock wait --- should be low or high for best mysql performance 6) Maximum open file --- should be low or high for best mysql performance 7) total row returned --- should be low or high for best mysql performance 8) total row returned via index --- should be low or high for best mysql performance 9) table open --- should be low or high for best mysql performance 10) table cache --- should be low or high for best mysql performance 11) Average row per query -- should be low or high for best mysql performance 12) No. of byte received --- should be low or high for best mysql performance 13) No. of Byte sent --- should be low or high for best mysql performance 14) connection used -- should be low or high for best mysql performance 15) query in cache --- should be low or high for best mysql performance 16) query cache hit --- should be low or high for best mysql performance 17) query cache hit ratio -- should be low or high for best mysql performance I request you to kindly provide me solution as soon as possible. I am waiting your response. 4 Replies
Let me point out that I'm not a DBA nor am I what you would call extremely proficient with Mysql. I do have to manage a couple of small DBs and what has been most helpful is using phpMyAdmin. From the home page you can view your Mysql Runtime Processes and you will find a list at the bottom of most of the settings. The tool will tell you the values, the purpose and suggest if you need to change something to.
I am explaining you one by one.
1) Thread cache size --- low 2) thread cache hit rate -- low 3) thread created --- low 4) table lock --- donot understand what you mean by that 5) table lock wait --- donot understand what you mean by that 6) Maximum open file ---donot understand what you mean by that 7) total row returned --- depend on the query you cannot low if it return too many 8) total row returned via index --- depend on the query you cannot low if it return too many 9) table open --- question not clear 10) table cache --- question not clear 11) Average row per query -- depend on the query you cannot low if it return too many 14) connection used -- are you talking about connection string here 15) query in cache --- depend on the query you cannot low if it return too many 16) query cache hit --- depend on the query you cannot low if it return too many actually some are simply depends on your query which you want to pass and want to fetch the result.Are you want to want to know about these for software or website development. I think you might be want to reduce the chances of crash of the database.Am i right?Hope that helps you. |
|||
|