The profiler will typically want to send bursts of queries (e.g. 3 queries
to retrieve source location strings, or multiple queries to get all the call
stack frames, etc.).
Each of these queries will be sent immediately, if available space in the
network buffer permits. Each of these sends is a separate syscall.
Remove this and instead batch all queries with the already existing network
buffer overflow handling functionality.
d6e77b3f40