[#BloombergLP-bdlmt-MultiQueueThreadPool-batchSize]
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Return an instantaneous snapshot of the execution batch size (see []Execution Batch Size)) of the queue associated with the specified `id`, or ‐1 if `id` is not a valid queue id. When a thread is selecting jobs for processing, if fewer than `batchSize` jobs are available then only the available jobs will be processed in the current batch.

== Synopsis

Declared in `<bdlmt_multiqueuethreadpool.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
batchSize(int id) const;
----


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