"Deferred Blocks" Counter

[TomB]

Hello again, Primo Support -

Another question, please:

According to the User Manual, the Counter for Deferred Blocks is described as follows:

Deferred Blocks: Number of cache blocks which currently stores write-data to be written to the disk. The number in parenthesis is the percentage of deferred blocks out of total cache blocks.


I am wondering if this counter is the number of deferred blocks waiting in L1 cache or in L2 cache? Or both added together?
And I have the same question for the percentage counter. Is this the percentage of L1 deferred or L2 deferred or both?

Thank you!

Tom

[Support]

This value is the sum of deferred blocks in L1 and L2 cache.

[TomB]

Thank you very much.

Perhaps it would be useful to have the percentage of deferred blocks in L1 and L2 to be listed separately, in order to help with tuning to avoid urgent writes? This is just a thought.

Thanks again,

Tom

[Support]

Thank you for your suggestion! However, I'm afraid we may not be able to show this value in L1 and L2 separately because may consume certain CPU and performance to trace this information in current code design.