[MarkLogic Dev General] setting tree cache partitions?

[Michael Blakeley]

Michael Blakeley wrote:
> David Sewell wrote:
>> In the MarkLogic admin console, Groups configure panel, what is the 
>> effect of increasing the default number of partitions (1) for any of the 
>> caches (list, compressed tree, expanded tree)? It's not documented in 
>> the Admin docs.
> 
> David,
> 
> The admin guide does describe the caches - very briefly - on p19:

David,

Apologies: I mis-read your message. The admin guide doesn't mention the 
cache partitions, but the help tab does provide some information:

> # list cache partitions specifies the number of independant list cache
> partitions to allocate. More partitions allow more concurrency, but make
> each individual cache partition smaller, which could make it more likely
> for the cache to fill up. The default is determined based on the amount
> of memory on your system and on the number of cores (the number of CPUs
> times the number of cores per CPU) in the system, and should work well
> for most installations. If you see a lot of CPU under-utilization under
> heavy concurrent query loads, then raising this value can improve
> performance.

The same concept applies to all three caches.

-- Mike