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https://issues.apache.org/jira/browse/TS-4324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15226383#comment-15226383
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Leif Hedstrom commented on TS-4324:
-----------------------------------
This is perhaps related to 8KB chunking, no? I.e. with non-chunked content, I
don't see this.
> Inefficient way of transferring data frames
> -------------------------------------------
>
> Key: TS-4324
> URL: https://issues.apache.org/jira/browse/TS-4324
> Project: Traffic Server
> Issue Type: Improvement
> Components: HTTP/2
> Reporter: Bryan Call
>
> ATS transfers data 8K - 9 bytes (http/2 header size) and then sends the 9
> bytes is couldn't write in a new frame that only has 9 bytes. This also
> happens if you bump up the buffer size to 16K.
> {code}
> [ 1.036] recv DATA frame <length=8183, flags=0x00, stream_id=13>
> [ 1.036] recv DATA frame <length=9, flags=0x00, stream_id=13>
> [ 1.259] recv DATA frame <length=8183, flags=0x00, stream_id=13>
> [ 1.259] recv DATA frame <length=9, flags=0x00, stream_id=13>
> [ 1.259] recv DATA frame <length=8183, flags=0x00, stream_id=13>
> [ 1.259] recv DATA frame <length=9, flags=0x00, stream_id=13>
> {code}
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