Optimize send to worker from master

[matyhtf]

No description provided.

[codecov]

Codecov Report

Merging #3910 (460a0b4) into master (98d4a78) will increase coverage by 0.05%.
The diff coverage is 57.36%.

@@            Coverage Diff             @@
##           master    #3910      +/-   ##
==========================================
+ Coverage   48.80%   48.86%   +0.05%     
==========================================
  Files          69       69              
  Lines       12873    12972      +99     
==========================================
+ Hits         6283     6339      +56     
- Misses       6590     6633      +43     

Impacted Files	Coverage Δ
src/network/socket.cc	58.05% <11.11%> (-1.65%)	⬇️
src/reactor/base.cc	55.60% <34.09%> (-4.81%)	⬇️
src/server/reactor_thread.cc	55.48% <66.66%> (ø)
src/server/process.cc	55.77% <71.42%> (-1.30%)	⬇️
src/server/worker.cc	50.84% <80.00%> (+0.41%)	⬆️
src/memory/buffer.cc	100.00% <100.00%> (ø)
src/wrapper/event.cc	86.95% <100.00%> (+0.59%)	⬆️
src/server/port.cc	53.74% <0.00%> (-0.33%)	⬇️
src/os/async_thread.cc	70.81% <0.00%> (+1.28%)	⬆️
... and 1 more

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