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

Set this queue's job execution batch size.

== Synopsis

Declared in `<bdlmt_multiqueuethreadpool.h>`

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

== Description

Configure this queue 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. The behavior is undefined unless `1 <= batchSize`. Note that the initial value for the execution batch size is 1 for all queues.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *batchSize*
| number of jobs to process per batch
|===


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