[lldb][debugserver] Max response size for qSpeedTest (#156099) #11361
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The qSpeedTest packet is used for experiments to determine the optimal packet size for a given communication medium, e.g. to transfer 10MB of memory, is it faster to send a hundred 100KB packets or ten 1MB packets. It creates a packet of the requested size in a stack allocation, but is not checking that its buffer is large enough for the requested size. Change this allocation to be on heap, and impose a maximum size that can be tested (4MB, for now). rdar://158630250 (cherry picked from commit ac8e7be)
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@swift-ci test |
JDevlieghere
approved these changes
Sep 11, 2025
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The qSpeedTest packet is used for experiments to determine the optimal packet size for a given communication medium, e.g. to transfer 10MB of memory, is it faster to send a hundred 100KB packets or ten 1MB packets. It creates a packet of the requested size in a stack allocation, but is not checking that its buffer is large enough for the requested size.
Change this allocation to be on heap, and impose a maximum size that can be tested (4MB, for now).
rdar://158630250
(cherry picked from commit ac8e7be)