fix ctx.SendStream(io.Reader)
huge memory usage
#2091
Merged
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Description
Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.
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ctx.SendStream(r)
with huge size reader will cause huge memory usage and may cause out of memory instead of streaming response.with
curl.exe --limit-rate 10k http://127.0.0.1:9999 --output downloads/bin
, you will find fiber read all 1024*1024*100 bytes very fast and use 100mb memory.this is caused by
ctx.SendStream()
try to read whole io.Reader and get a content length.code path:
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