[#BloombergLP-bdlmt-MultiQueueThreadPool-setBatchSize]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlmt.adoc[bdlmt]::xref:BloombergLP/bdlmt/MultiQueueThreadPool.adoc[MultiQueueThreadPool]::setBatchSize
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:mrdocs:

Configure the queue specified by `id` to process jobs in groups of the specified `batchSize` (see {`Job Execution Batch Size`}). 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. Return 0 on success, and a non‐zero value otherwise. The behavior is undefined unless `1 <= batchSize`. Note that the initial value for the execution batch size is 1 for all queues.

== Synopsis

Declared in `<bdlmt_multiqueuethreadpool.h>`

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


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