[jira] [Commented] (IGNITE-8580) Print page read/write metrics splitted by type

["Alexey Goncharuk (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-8580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16494873#comment-16494873 ] 

Alexey Goncharuk commented on IGNITE-8580:
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Vladimir, I think it makes sense to include such a metric to the SQL and cache operation statistics - the counter may be thread local, in this case we will be able to return the number of in/out pages in query result meta.

Do you think it makes sense to create a separate ticket?

> Print page read/write metrics splitted by type
> ----------------------------------------------
>
>                 Key: IGNITE-8580
>                 URL: https://issues.apache.org/jira/browse/IGNITE-8580
>             Project: Ignite
>          Issue Type: Task
>          Components: persistence
>            Reporter: Vladimir Ozerov
>            Assignee: Vladimir Ozerov
>            Priority: Major
>             Fix For: 2.6
>
>
> Currently it is impossible to track how many pages of a certain type were read from or written to disk. This might be very useful for performance tuning and debugging purposes. E.g. excessive page reads may highlight missing SQL index.
> We need to expose total read/write pages metrics splitted by page type (see org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO#getType()).



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