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https://issues.apache.org/jira/browse/KAFKA-21156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai resolved KAFKA-21156.
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Fix Version/s: 4.5.0
Resolution: Fixed
> Avoid unnecessary char[] copy in
> ProcessorRecordContext#residentMemorySizeEstimate
> ----------------------------------------------------------------------------------
>
> Key: KAFKA-21156
> URL: https://issues.apache.org/jira/browse/KAFKA-21156
> Project: Kafka
> Issue Type: Improvement
> Reporter: Chia-Ping Tsai
> Assignee: Yen-Ting Li
> Priority: Trivial
> Fix For: 4.5.0
>
>
> {code:java}
> public long residentMemorySizeEstimate() {
> long size = 0;
> size += Long.BYTES; // value.context.timestamp
> size += Long.BYTES; // value.context.offset
> if (topic != null) {
> size += topic.toCharArray().length;
> }
> size += Integer.BYTES; // partition
> for (final Header header : headers) {
> size += header.key().toCharArray().length;
> final byte[] value = header.value();
> if (value != null) {
> size += value.length;
> }
> }
> return size;
> } {code}
> toCharArray().length -> topic.length()
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